Small jaw crusher widely used

Ultrasonic vibration sieve shaker ultrasonic controller and combine together , ultrasonic dewatering screen superimposed on the screen at a high frequency low amplitude

ultrasonic vibration wave , ultrasonic vibrating screen ultra-fine powder to accept huge acceleration ultrasound , ultrasonic Coal screening machine to make the screen surface

Materials remain in suspension , thereby inhibiting adhesion of the ultrasonic vibration sieve , friction, flat drop, wedging and other factors blocking network , so as to solve

the strong absorption , easy to join , high static , high precision , high density, light weight and other screening problems, so ultra fine screening is no longer a difficult

task, super-

Sonic particularly suitable for high -quality shaker , fine powders users.

Jaw crusher mechanism design is optimized to ensure the best performance crusher has the fundamental methods to effectively solve the original limestone crusher operation due to

low production rates due to no downtime problems, jaw crusher jaw belt regularly cut stone crusher conveyor belt is born

Indispensable production line machines are driven by belt conveyor credit adjusted periodically to ensure the tightness of the belt force uniform dual motor drive should be

carried out when both sides of the triangle tape each packet matching its length will be as consistent as possible .

Small Jaw Crusher is widely used in domestic ports, mining , geology , mining and other related corporate quality control, product development process of the sample crushing ,

small jaw crusher is also used directly in the production process of raw materials and products smash processing , small jaw crusher

Machine all materials are grooved jaw structure design, small jaw crusher jaw grinding efficiency than flat plate height , does not produce flat jaw broken when materials harsh

friction noise.

Simple structure small power consumption, electromagnetic vibrating feeder

Mining machinery working principle and structure of minerals mined similar machinery used in mining are mostly the same as or similar to the use of mining machinery and rotary

cutter axial pressure force on the rock face of the rolling effect , directly mobile crushers for sale ore into the wells of a roadway or mechanical equipment , mining machinery specialized for

drilling

Chisel patio and chute , generally do not need to enter the patio operations , mining machinery cone drill drill pilot holes first , with the composition of the disc cutter

reamer upward reaming.

Electromagnetic vibrating feeder structure is simple, easy to operate, without profit oriented , small power consumption , screen machinery electromagnetic vibrating feeder electrical control

uses a half-wave rectifier circuit , can be adjusted to the quantity, can be used for automatic control of the production process , production process automation ,

electromagnetic vibration feeder

Machine mainly by trough, electromagnetic exciters , shock absorber components , electromagnetic vibrating feeder is a more complete dual particle orientation forced vibration

elastic system , the entire system operates at low critical resonance , electromagnetic vibrating feeder primary the electromagnetic exciter drive the tank to a certain

Inclination reciprocating vibration, electromagnetic vibrating feeder so that the material moves along the slot .

Jaw crusher operation should pay attention to what matters

Jaw crusher load test when :
1 , Jaw Crusher continuous operation 2h, bearing temperature must not exceed 30 ℃. 2 , Jaw Crusher All fasteners should be firm, without loosening. 3 , flywheels, pulleys and

smooth operation. 4 , Jaw coal crushing plant all friction parts no scratches , chipping and grinding phenomenon , no unusual sound. 5 , Jaw Crusher row

Spout adjustment device should be able to ensure that nesting population adjustment range.

When the load test :
1 , crusher cycle or may not have a significant impact , percussion . 2 , the maximum feed size should meet the coal crusher machine design requirements. 3, the continuous operation of 8 h, bearing

temperature must not exceed 30 ° C. 4 , crusher capacity and product size should meet the design requirements. 5 , adjust seat and rack ears Zama

No significant rocky ledge .

Preparation before use :
1 , the thrust plate carefully check whether there is sufficient connection grease. 2 , carefully check all fasteners are tightened. 3 , carefully check the belt is good, if

found to have unsafe phenomenon, should be replaced when the drive belt or pulley on the oil when the oil rag and wipe application

Net . 4, check the protective device is good, found insecurity , should be immediately removed. 5, check whether the ore crushing cavity or debris, if ore or debris , it must be

cleaned to ensure that the crusher cavity starts. 6, check whether the return from the top bolt , washers

Group is pressed , T -bolts are tightened .

Jaw crusher start:
1 , upon inspection, the various parts of the machine proved normal, can be enabled. 2 , Jaw Crusher is only permitted in the case of no-load start . 3 , before the start tone

or signal must be forewarned . 4 , starts, if there is not a normal phenomenon , it should stop immediately . To be identified and

Exclude normal only after the restart crusher.

Produced using the process :

1 , jaw crusher normal operation only after the feed production . 2, to be shredded material should be evenly added crusher cavity should avoid feeding or filled with lateral

feeding, avoid unilateral overload or withstand overloads. 3, the normal operation, the bearing temperature should not exceed 30 degrees , the maximum temperature is not

Exceed 70 degrees Celsius . Exceeds the temperature, should be immediately stopped , to identify and eliminate the cause . 4 , parking , you should first stop feeding until the

crushing cavity material completely discharged only after the power is turned off . 5 , when broken , as a result of the crushing cavity material obstruction caused by parking

should be

Immediately turn off the power to stop running , will clean up after the crushing cavity material before re- start ; 6 , jaw plate wear at one end , you can turn around and use

. 7 , Jaw Crusher after a period of use , you should re-tighten adapter bushing to prevent tight sleeve loose and damage the machine .

Jaw crusher working principle is what

Jaw crusher ( jaw crusher ) works:
  The structure crusher main frame , eccentric shaft , big pulley , flywheel, moving jaw , side guard , elbow board , elbow board seat , adjusting screw gap , the reset spring ,

fixed jaw plate and movable jaw plate Sand screening machine and other components, which also play a role as insurance bracket .
  Jaw crusher for the song moving extrusion type , motor-driven belt and pulley , through the eccentric shaft to move the jaw up and down movement , when the movable jaw rises

between toggle plate and moving jaw angle becomes larger, thus promoting the movable jaw plate to close to the fixed jaw plate , while the material is squeezed , rubbing,

grinding and other

Heavy broken ; when the movable jaw down, vibrating sieve the toggle plate and moving jaw angle between , moving jaw plate lever action of the spring to leave the fixed jaw plate, then the

crushed material from the crushing chamber under the discharge port , with the motor mobile jaw crusher for continuous rotation of the crushing and nesting periodicity , to

achieve mass production

Future development of mechanical vibration

At present, vibration machinery and spare parts manufacturing enterprises only Xinxiang area alone more than 380 , but also showed a rising trend . In addition to Xinxiang ,

Nantong, Jiangsu in China , Henan Hebi , Anshan, Liaoning , Chaoyang also has a large vibrating machinery manufacturing enterprises. But these enterprises

Most of obsolete equipment, small scale, backward management . While the majority of screening machinery product homogeneity serious , low levels of product innovation ,

creating a market more competitive.

In this main surface , the domestic large-scale Sand screening machine machinery manufacturing enterprises have been actively exploring and began supporting the development of any product ,

such as dust ring , etc., and a user -based screening machinery forming a preliminary market . Products in this regard should be strengthened in future R & D investment and

market expansion

Development investment, the piece has long-term development potential market bigger and well. Objectively speaking , dewatering screen manufacturing enterprises do not belong

to a sunrise industry , seek multiple perspectives diversification has become an inevitable development strategy. Currently, screening machinery production run from the whole

process point of view, with a high

Energy consumption, heavy pollution characteristics ( mainly dust pollution , water pollution and noise pollution ) , apart from the technical ways to reduce energy consumption

and screening machinery products , more should be considered in accordance with industry related links, developing series of complementary products within the enterprise to form

a small production

Circulation, such as pollution, pollution control .

Since the central coal , mining, metallurgy , chemical industry , screening machinery may face saturation trend, screening machinery as the main products in the vibration

machinery manufacturing enterprises , in addition to maintaining the current shaker manufacturing advantages, but also related industries in this area to expand

Such as pilot projects with a vibrating machinery such as vibrators , etc., to use their existing technology and financial advantages conquer new markets , to seek new profit

growth point.

Scraper conveyor how to install and use

1 , the positioning
First, set the location of the nose and tail , and then set the scraper conveyor centerline.
2 , the laying of the middle slot
According fix conveyor centerline , laying the middle slot . Such as non-metallic groove box , then the middle slot tiling and stone screening machine cement slab , and then bonded cast stone lining .

Cast stone laying liner , pay attention straight seams as little as possible , the longitudinal slit to stagger working hours will prevent the gap

Ground into a ditch.
Conveyor need laying flat surface , such as a conveyor plane excessive bending , will inevitably lead to two chain discontinuity , Circular vibrating screen cast stone acceleration chain and wear between

the tank wall , and even card chain . Paragraphs should be smooth and no overlap tank level. As the tank itself structural constraints , adjacent

Deflection in the vertical direction intermediate tank should not be too large . If the conveyor is not laying flat , transport consumption will increase. Road to the plot

machine coal or debris should be swept away .
3, installation nose and tail
Nose and tail should leave some space, easy maintenance and repair. Sprocket centerline to centerline perpendicular to the conveyor and assurance level .
4 , mounted scraper chain
Before installing scraper chain , should be pre- connected, scraper evenly distributed in the chain . If the two chains of equal length to choose , or factory assembled chain

pairing . Chains may not have reverse phenomenon . Ring chain seam side up , to prevent the occurrence of chain and sprocket clip

Card phenomenon .
5 , inspections and air operation
Conveyors installed, should be thoroughly checked and start conveyor. Empty running 2h, mainly the driving device and the blade is functioning properly . Meanwhile , the

intermediate grooves of adjacent abutting again tension chain , the chain length adjustment .
Scraper conveyor work within the first two weeks , you should pay particular attention to the tightness of the chain . Checking method is this: If there is a tail drive , then

jog the drive device, when the tail sprocket chain on stocks with more than two full relaxation chain link , the need to tighten chain or split ring chain Less

, Reducing the length of chain link . If only the head driving device , you will need to reverse the motor jog, while stocks on the nose sprocket chain at more than two chain

rings completely relaxed . Also need to tighten chain or split ring chain reduction .

Why work sieve shaker machine rotation slows

First, the phenomenon:
Normal working hours sieve shaker rotating round vibrating Mobile crushing plant slows down, bearing heating
Second, the resulting vibration sieve machine rotation slows reasons:
1, bearing the lack of mineral oil shaker.
2, bearing blocked.
3, bearing oiling excessive or inappropriate added oil.
4, bearing damage or poor installation, round off the wheel eccentric, eccentric.
Third, banana screen can be taken to solve the following measures:
1, injected into the bearing lubricant.
2, cleaning bearings, replace the seals, labyrinth seals gridiron checking devices.
3, check the bearing lubricant.
4, replacement of bearings, installation eccentric block to adjust round wheel.
5, reducing the screening machine feed.
6, the tension vibrating screen mesh, drive belt tensioner.

Shaker in the coal Applications

Check the shaker in the materials after grinding of the material is important not to separate more appropriate sizes demand crushed pulverized product, vibrating sieve and

filter dewatering coal preparation plant dewatering drying operation after dehydration using Election product called mesh sieve dehydration.
Leave off the mud shaker oscillating screen screening slime, in order to reduce contamination during sieving machine of coal preparation plant fine mud high ash, screens, improve power spray

of fine mud removal of part, which is called off the mud filter to the central heavy medium coal preparation, mold on the media system in order to reduce the separation of coal

pollution intensive media also use to check the soil. In order to re-examine a mild coal, coal preparation medium and heavy products on the edge of the water jet sieve heavy

machinery, in order to improve the product so as to enhance the quality of separation. This action is called an external mediation action.

Construction machinery parts repair tips summary

1, bulldozers frame welding repair station
After six years SH320 bulldozer used trailer chassis in different directions due to the long moment and the role of torque, the two Semi-mobile crushing plant bracket bolts fracture occurred, plus they

did not discover, leading Taiwan frame forearm broken into two. As difficult to repair, and that even if they have to buy the old pieces of more than 10,000 yuan, for which we

decided to use welding techniques to repair.
In practice, the first in accordance with the status quo will be broken bolts installed, the platform frame is assembled, will crack first spot live round vibration screen, then

remove and back to the workshop, with the bracket set up 30cm, within 1m around the crack heating with charcoal (to prevent local thermal deformation), to reach about 120 ℃,

and then use acetylene flame cutting out the V-shaped groove, groove depth of the arm-thick 3/4, and then the implementation of welding.
Welding process is as follows: DC arc welding machine, reverse method (weldments then negative), J507 electrode (heated before use to 100 ℃), electrode diameter Φ3.2mm, arc

welding current situation according to regulation. After welding, eliminating stress (heated to 200-300 ℃ slow cooling) and for grinding process. After welding machine use that

quality fully meet the requirements. The machine has been used 10 months, working properly.

2, the loading mechanism Power Units
Loaders use more gas assisted hydraulic dual circuit braking system, a KLD85Z loaders company also adopted this braking system. Because long-term use, once the brake booster

sudden failure during use, check the cause of the failure is: booster cylinder chambers prolonged exposure to brake fluid corrosion and pitting, leading rubber cup wear and

failure.
Upon inquiry, this product is no domestic parts, import price of 12,000 yuan. Obviously, if the purchase is not economically viable. Found BJ2020-type jeep Clutch bag rubber cup

cup size with this machine similar, but slightly smaller diameter. Reanalysis piston chamber size, consider that this piece perfectly usable lathe; using rapid small amount of

feed processing electromagnetic shaker, in order to reduce the roughness of the cavity; adjust the feed turret 2-3 degrees, so that there is a certain oblique wall degrees;

diameter outer diameter dimensioned according cups, and more than its original size small 0.4-0.5mm. After careful measurement processing, repaired completely normal use.

3, the engine cylinder head deformation Repair
A company of two Kawasaki KLD85Z type loaders, its long-term work in the engine cylinder head temperature, high pressure, heat load and alternating loads and warpage, cylinder

head gasket washed out from the water at the crossing, causing the combustion chamber pressure drops lack of engine power and the water coming out the radiator filler neck.
Continuous cylinder head gasket replaced twice, each for one month after it was washed out. Dismantling the unit and found the cylinder block, cylinder head are deformed.

Cylinder block flatness error of 50μm, also meet the technical requirements, but the cylinder head flatness error can reach 0.20mm, this variant was washed out of the cylinder

head gasket is the main reason.
Using the repair method, since the machine is covered with no concave chamber, without regard to changes in volume combustion (combustion chamber volume changes in the value

generally should not exceed 4% of the original volume), using the method of processing of the face milling head plane; joints in the cylinder head and the cylinder is installed

at the water crossing a copper pad (pad thickness of the copper water crossing 1.2 times the thickness of the concave Taiwan), instead of the rubber seal cylinder pad, then

install the cylinder head gasket large round shaker, while using the first post-cold-hot tight tight approach sturdy cylinder head bolts. With this method repair of the engine,

and then not to overshoot the cylinder head gasket failure.

4, dump truck repair welding consumables
Czech companies have produced a type of self-T815 tanker of 30 units in use in a few years found that due to the localization of the car chassis parts, chassis quality can not

meet the construction requirements, certain accessories are often malignant fracture, giving users great economic losses. After a long journey, the aircraft wearing parts (eg

steel lugs, steel clips, spring steel and axle casing, etc.) carried out repair welding, and achieved good results. When the welding Note: Use the DC arc welding machine, J506

welding, preheating before welding, after welding, insulation, elimination of local thermal stress and prevent stress concentration.

5, dry cylinder liners for emergency repairs
A company of a Komatsu WA420 wheel loader, because the long-term work in the field, using the engine cooling water containing minerals more bucket elevator, combined with the

cooling system filter maintenance negligence cylinder engine crankcase II took place in cavitation, while making the thin-walled cylinder is also cavitation, there Φ2mm size

holes, resulting in the crankcase sump water. Taking into account the aircraft equipment purchased in 1992, the engine crankshaft, camshaft and cylinder used at or near the

limit, invested a lot of money for repair of no value, but the engine's cylinder and piston wear still meets the technical standards, no burning oil and black smoke, and the

engine is working properly, no significant increase in fuel consumption, hydraulic systems and chassis parts continue to use, and significantly higher than the domestic similar

mechanical efficiency.
To this end, we have the original liner turned 180 degrees, and in the crankcase cavitation at blocking with AB glue, and then reassemble the engine running again shows that

working properly. With this lesson, later working properly. With this lesson, in a later work, management and maintenance staff very seriously cooling water filter maintenance.

Has been a year since the restoration, the aircraft still in use.

Mining machinery industry more and more attention

   State government attaches great importance to the crusher mining machinery industry
    From the analysis of the current economic situation, more and more mines Feeding equipment begin using mechanized operations, enhance the rate of exploitation of mines, especially in coal,

copper, zinc and other mining mechanization level has been greatly improved, and the quality of the finished product these industries and forming size requirements are

constantly improved. Therefore, in order to meet different customer requirements, Hongxing Heavy Industry in a broken jaw crusher, secondary crusher crusher on the basis of

research and production of cone crusher, for expanding the mining equipment market capacity, conducive to muster orders related companies enhance the scale coal crusher.
   With economic growth, a variety of metal and nonmetal mines, cement, construction, sand and metallurgical industries to expand production scale, its processing equipment -

crusher in its development occupies a very important position and role as the pillar industry equipment.
   In addition, with the economic development in recent years, become the pillars of heavy industry, the Mining vibrating screen government in order to support the development of the crusher industry

to help them smoothly through the financial crisis, the provisions of the Ministry of Finance for large off-highway dump truck and its key components and raw materials import

tax policy adjustments. On imported core components of import duties and import VAT to implement front-end retreat for enterprise development and production of new products and

innovation capacity building ceramic ball.
   Recently, the State in order to support the localization trend crusher, crushing machinery to promote - the development of cone crusher, issued a "deep exploration work on

the promotion of guidance" to promote China's solid mineral exploration to deep expansion. Showing mining machinery and equipment will be faced with a new round of industry

demand, indicating that mining machinery and equipment stocks industry boom is expected to continue rising and continued mobile crusher station.

Linear shaker routine maintenance and start-up mode

One, vibrating Screen machine before the start:
1. Check the linear shaker coarse mesh and fine mesh for damage
2. Each group is locking ring beam shaker 3. Check the rotary vibration sieve screen frame of the V-ring for damage, if there is need for timely repair damage, prevent material

leakage.
Second, start time:
1. Note any abnormal noise (2) whether the current stable
3. Without abnormal vibration
3. After use: After each use, clean linear vibrating coal vibrating screen that is.
Regular maintenance
Regular inspection coarse mesh, fine mesh and springs without fatigue and damage, whether all parts of the body resulting from damage due to vibration, the site must be added

lubricant lubrication. Vibration: With Model Screen Size Screen surface layers feed size sieve size motor power handling capacity

These dual amplitude vibration frequency data, allowing search shaker who have a more profound understanding.

Shaker major role

With China's economic construction and further development of scientific career, new uses shaker will continue to appear, they are used in various sectors will also be

increased, and will play an increasingly important role.
1, in the engineering applications
30 years, Professor Wen Bangchun theoretical results obtained with the application of the results to promote practical engineering. For example, a large self-synchronous

vibration exciter deflection screen, inertia resonant probability screen, new structures such as thick vibrating screen machine, vibrating the new structure of the cooling

machine and successfully should

For the industrial sector, has made significant economic and social benefits, won the National Invention Award, National Science and Technology Progress Award and more than 10

provincial and ministerial level awards.
2, in the design theory and methods of innovation
Propose a more systematic dynamic mechanical shaker design theory and methods, especially nonlinear dynamic shaker crusher machine nanomechanical design theory and methods, as well as dynamic

optimization, intelligent optimization and visualization optimized for the content of the integrated design for high quality The design of such products,

Especially in the research and development of new products to provide a theoretical reference and basis for plants.
3, in the theory of nonlinear dynamics of innovation
Professor Wen Bangchun summary of vibration and long-term fluctuations in the use of technology and equipment, theoretical aspects of the work carried out research and testing

system for vibrating screens utilize multiple branches of engineering (such as vibration Sync synchronization and control applications of the theory, nonlinear vibration

utilization, utilization of wave energy spread

And other branches) to create a theoretical basis.
4, in the institutional innovation
Proposed a variety of new shaker agency. For example, self-synchronous vibration exciter deflection mechanism, a special form of non-linear inertia resonant vibration

institutions, a number of national patents. In the process theory and technology innovation, Wen Bangchun engineering research professor in the vibration in use

Process theory and practical application of the results achieved. For example, the proposed probability - equal thickness screening theory, all kinds of work surface material

sliding and throwing motion theory, and vibrating sieve process theory and applied mechanical vibration during operation.

Closed iron coal feeder system is the central link structure optimization

      Closed iron coal feeder system is the central link structure optimization, is home to a large blast furnace ironmaking technology development trend, but also the

development of China's steel industry is one of the complete crushing plant three key technologies, so we should strive to improve coal injection ratio.

      Reciprocating to the coal instead of coke, reducing the stratified coal feeder demand for coke. Reducing the demand for coke, can make less coke oven. Less production of

coke oven coke or less to build, you can reduce environmental pollution. Ease of entrained coal plate feeder shortage

Optimize the energy structure ironmaking, coking coal generally need with more than 50% of coking coal to meet the reciprocating stoker on coke quality requirements. Closed the

stoker coal extensively, you can not use the main coking coal. This ease of stratified coal shortage, but also

Reduced entrainment coal feeder system purchase cost of coal.

feeder is an economic and technical indicators advanced feeding equipment

F motor feeder, also known as feeder. ZZF feeder in the production process, can the massive, granular materials from storage silos in uniform, regular, continuous to go to the

affected device, powder feeder in the sand China Vibrating Screen and gravel production line for crusher evenly continuous feed

Material, and coarse screening material, GZG vibrating feeder is widely used in metallurgy, coal, mineral processing, building materials, chemicals, abrasive and other

industries crushing and screening equipment.

    Vibrating Feeder is a kind of Semi-mobile crushing plant economic and technical indicators advanced feeding equipment, and other feeding equipment compared with the following characteristics:
      1, powder feeder, small size, light weight, simple and compact structure;
      2, installation, maintenance, operating costs to win;
      3, vibrating feeder, high efficiency, feeding capacity;
      4, low noise, improves the working environment;
      5, low power consumption, high power factor;
      6, the device far more resonant mode of operation, thus amplitude stability, reliable operation, strong adaptability to a variety of materials;
      7, plus with turtle wish Kui curtain drops need to adjust the eccentric rock mining can be easily stepless feeding amount.

Micro electromagnetic vibrating feeder use vibrator eccentric centrifugal force generated by rotation

         Micro electromagnetic vibrating feeder to go through the material weight by weighing bridge for testing to determine the weight of the material on the tape, mounted in

the tail of the digital sand screen speed sensor, continuous measurement of the running speed of the feeder, the speed sensor pulse output proportional to the disc feed

Feeder speed, the speed and weight of the signal with the signal fed into a single screw feeder controller, a microprocessor for processing, generating and displaying the

cumulative amount / instantaneous flow. The flow rate is compared with the set flow rate, controlled by the output signal of the inverter control instrumentation change in board

Feeder drive speed, so that the material on the feeder traffic changes, close to and maintained at the set feed flow, enabling dosing requirements.
   Micro electromagnetic vibrating feeder is the use of vibrator eccentric rotation of the centrifugal force, so sieve compartment, movable parts such as vibrators forced

continuous circle or approximately circular movement. Material is in the car with the sieve linear vibrating screen surface inclined to make continuous throwing motion, evenly and continuously

Materials sent to disc feeder mouth. When the plate moves forward together with the material, the material within the hopper along with the body of the space filled. When

backward movement of the base plate, the base material can not be on the back and along the unloading blocked, to achieve the feed. Change Backplane movement amplitude,

frequency and the

Height adjustable feed gate feeding amount. Feeding amount is generally 40 tons / hour or less. Such single-screw feeder suitable for medium and small size materials, mainly

trough and tilting two kinds. In the feeder base plate is flat, the work reciprocated. Tilting bottom feeder-arc

Shaped, hinged on the body, the work floor swing.

Weigh Feeders with core technology and independent development efforts

      Weighing feeder from the hopper, feeder (single, twin-screw feeder), the weighing system and the regulator component, in operation, the hopper, the material and the feeder

is continuously weighed together. With heavy plate feeder sent, measure the true rate of weight loss and roll

Tube feeder with the desired weight Dry vibrating screen loss rate (set value) can be compared. Weigh Feeders Weigh feeder rate through mediation to automatically correct the bias deviates from the

set point value. Which can be uniformly accurate continuous feed materials. Weigh Feeders suitable range includes plastic granule, powder

, Calcium carbonate, talc, a resin film powder products, flour, starch, etc., which for the different materials, we designed two different scales, i.e. scales powder (to solve

the poor feed flow metering and dosing problem), aggregates scales (resolution of any problems that may occur bridging

), A good solution to the existing problems in the production process.

      Weigh Feeders with core technology and independent development efforts in a number of fields and industries have extensive experience in engineering applications, belt

feeder has the following unique features and benefits:
  (1) heavy plate feeder wide range vibrating screen design of applications, granule, powder, calcium carbonate, talc, resin film powder products, flour, starch, etc. can be used;
  (2) Weighing machinery originals such as a screw feeder and so easy to decompose, assembly is simple, easy to clean;
  (3) Roller feeder cutting, stable performance, high precision, large range of transmission capacity available;
  (4) Weighing feeder system static accuracy of 0.1%; linearity, repeatability dynamic accuracy of 0.3%;
         (5) belt feeder control instruments use high-precision weighing scale weight loss scale control device RWC-800CF, with high precision, strong anti-interference, real

time, etc.; sensor Ronan brand precision sensor module, the sensor uses laser welded seal, with high accuracy

, High reliability, good benefits, especially for harsh conditions application field;
   (6) weigh feeder control system flexibility: weighing scale control system enables manual and automatic control feeding and feeding process, enabling manual and automatic

conversion.

Our financial motor feeder-owned leasing industry development speed

       It is understood that at present, many domestic and foreign well-known manufacturers of construction machinery, have established their own finance leasing companies,

financial leasing in the use of the product sales are generally achieved good results. At present, many domestic and foreign well-known manufacturers of construction machinery,

such as domestic

The Zoomlion, Sany, XCMG Yuchai Heavy Industry, Liugong Group, Hill pushed foreign enterprises in China, such as Caterpillar, Volvo, Doosan Heavy Industries, Komatsu Heavy

Industries, have established their own finance lease companies in the use of motor feeder by way of finance lease

Line product sales, generally achieved good results.

But the pace of development of financial leasing industry is not optimistic point of view, the industry is slowing down. Since 2011, the state has adopted tight monetary policy,

the relevant regulatory authorities began to control the scale of financial leasing enterprises, domestic and foreign leasing companies to obtain funds from the bank

Difficulty circular dewatering screen corresponding increase, by the end of the country failed to meet the balance of finance lease contracts generally expected trillion yuan,

930 billion yuan more than last year's 700 billion increase of 32.9%, with the "Eleventh Five-Year" period shaker The annual growth doubled in sharp contrast circular vibrating

mobile screening plant

. Chinese construction machinery feeder 40 percent sold abroad achieved through finance leases. Sany, crusher Group, many domestic manufacturers of construction machinery

through lease financing lease circular vibrating screen achieved foreign sales reached 40%, of which a small jaw crusher heavy branches more than 50%.

Feeders of financial leasing industry development speed-owned

For information display, as used construction machinery imports to raise the threshold, in 2012 a new business is expected to increase the domestic machine market capacity of

8654 units. In January this year, the major domestic enterprises achieved a total sales volume of excavators sold 2287 units, down 42%, a decline of 38.06%. Exhausted

Pipe overall market is still weak, but several major domestic enterprises improved sales figures, but it is fortunate. Feeder industry people who think that the import of

second-hand excavator new regulations the credit for this. In January's sales data, Sunward, Sany Heavy Machinery and Liugong respectively

And 121 to 130,120 units, the market share increased over last year 2.05,1.12 and 2.02 percentage points. In aside domestic enterprises to strengthen sales efforts outside the

premise that subtle changes in the market eyes fell on January 1 this year, the real linear shaker Shi "on the old excavator

ZS import application materials forwarded to Sand screening machine to inform the work. "

"In recent years, the old machine's massive imports in a rich market supply at the same time, the problems exposed during use has become increasingly prominent, especially in

2007, fake, shoddy and parts Removable problems occur frequently, hand digging machine import market is extremely confusing, because Yuan Zhen

This has a new notification moving sieve introduction. "Changsha construction machinery enterprises in an interview admitted that if the new regulations can be promulgated

strict implementation is not only a second-hand excavator import market norms, but also domestic new machine will produce long-term promotion of sales due to

The average price of second-hand construction machinery new machine price is only 30% to 50%, and therefore its import has not stopped, and the significant growth every year. In

Guangdong, Hainan, Shanghai and other port areas, import and smuggling of used excavators almost compete with the new machine, dealers

Bitter said motor feeder in these areas for the new small jaw crusher machine "Bermuda Triangle" and the "Golden Triangle." Analysts estimate that in 2008, domestic second-hand

excavator imports about 28,000 units for the motor feeder vibrating sieve, the proportion of total sales was 30%.

Currently screening machinery has been introduced dynamic analysis

        Currently screening machine designed to conventional design calculations and analog design method based. But modern design methods, gradually began screening machine

design applications. So it can be used as an iron equipment selection, because the structure of the sand screen design is advanced and reasonable, solid and reliable,

parameter optimization design requirements correctly, so that coal mining machinemachines operate at higher efficiency and longer service life.
   
        Technology developed countries, has been more generally introduced into the dynamic analysis of modern structural design. The process generally, first based on

experience or practical requirements and other conditions for the preliminary design of the original, in this based on the mechanical model of the mechanical model for the

structural strength analysis and dynamic analysis, the results of the analysis and design requirements were compared; if the right design is not satisfied, it is necessary to

modify the preliminary design of the revised structure, further strength analysis and dynamic analysis, redesign, and then modify, re-analysis, until fully meet the design

requirement.

        Computer-aided design (CAD) is produced from the early 1960s and developed. Its appearance is greatly improved traditional design methods, and showed great vitality.

Optimization method with the design, can meet the shaker required in the field case, the optimal configuration of the parameters. In order to meet the needs of engineering

design, CAD design system generally, including graphic design, engineering analysis and design optimization techniques.

Describe the rational screening machine structural stress distribution

        In China, the computer-aided design gradually screening machine design applications, nearly 20 years. In addition to using graphics package graphics rendering machine,

but in the current vibrating screen design, the following analytical methods have been and are being widely used. They are the finite element method, modal analysis, mechanical

design and structural optimization method to modify the dynamic characteristics of technology. These are the important part of the computer-aided design.
   
        Optimization method with the design, can meet the shaker required in the field case, the optimal configuration of the parameters. Finite element analysis, can provide

overall screen box structure rational distribution of stress and strain state. Many examples illustrate, in combination plate girder structure based shaker, finite element

analysis can be obtained at a reasonable screen box structure strength, have a good effect. Modal analysis is used instead of the real structure model for dynamic analysis, in

general the results more accurate.

        Modal analysis results can be directly used to evaluate the linear vibrating screen box structure design is reasonable, and for structural dynamic response analysis and fatigue design

basis. Cement kiln manufacturers modify the dynamic characteristics of the structure that is in modal analysis techniques developed on the basis that it can be targeted for

structural modifications, and then modify the structure of the process to avoid blindness. Highly versatile shaker graphic design, there is not as described.

Screening machine at the surface to be protected when removing parts

        Screening machine in use for some time to carry out maintenance, maintenance should pay attention to a lot of problems, then describes maintenance should pay attention

to the following aspects:
        1) vertical crusher demolition of parts of the surface with a precision fit, you should be especially careful to protect these parts of the surface to prevent damage.
        2) disassembled parts with machined surfaces will rust and intends outside the machine for several hours or more, must be well protected and coated with oil, or coated

with rust inhibitor.
       3) spiral classifier has a bearing surface and remove the parts machined surface, laying on the ground should be wood, to prevent direct contact with the ground surface

finishing.
       4) the parts and then loaded on vibrating screen classifier, you must first cleaned and oiled.
       5) loading and unloading parts, does not allow a direct hit with a hammer parts, you need to pad copper or the corresponding pad. Percussion for casting, special

attention should cause damage and cracks. Sometimes these cracks, only after the heating operation in the exposed parts.
       6) when the bearing is damaged, preferably replaced with two bearings. If due to limited conditions, can not replace the two bearings, all bearings should be removed,

cleaned, and then installed.
       7) Replace "o" rings, it is best to "0'' ring oiled soil into the slot, it should not be stretched.
       8) dryer manufacturer that Piao high strength bolt tightening, we must act tightened as specified.
      9) Install the new mining screen, we must make the screen of the hook and the supporting mesh screen box angle or channel solid contact and uniform tension.
     10) for lifting or removing parts of the lifting equipment, should have sufficient lifting capacity.

Analysis of screening machine bearings have some of the features

        Screening machine used in the process, under normal circumstances without removing bearings. But when the bearings or internal parts failure, you need to remove the

bearing. Dryer manufacturer considered when linear vibrating screen overhaul, they should also open the bearing for cleaning refueling. But rightly demolished

Unloading and assembly of bearings, is to maintain a good working performance vibrator important key screening machine is an important guarantee to work.

        Spiral classifier screening machine used in bearings, and general machinery used in bearings, has the following characteristics: it is mounted on the vibrator, the

direct participation vibration, and the work load is relatively large, relatively fast speed, acceleration withstand large, easy to heat . So the choice of what

Kind of bearing, and the bearing life will determine the performance of a sieve. In the high frequency screen, generally choose the appropriate model, able to withstand greater

loads large clearance bearings, is to use a larger radial clearance of the bearing.
   
       Coal mill bearing radial clearance, that is, when a bearing ring is fixed, while the other ring in the direction perpendicular to the bearing axis, from one extreme

position to the other extreme position the mouth so the amount of movement, Check the bearing radial clearance is the shaft

Order of stand up, with a feeler bearing outer ring bore the highest point, and the uppermost one roller gap between the highest point you can. Radial clearance of the bearing

size of their value, divided into five groups, namely two groups, O group 3, group 4 and group 5. O group was normal clearance group, two groups in order to reduce travel

Gap group 3, 4 and 5 groups in order to increase clearance group.

How does it work shaker

Vibrator shaker rotating weight on the screen surface produce planar whirling vibration, and the lower surface of the rotating weight then generate the conical rotary vibration

sieve, and its effect is the combined effect of generating a complex rotating screen surface vibration, vibrating screen is a kind suitable for damp fine grade dry sieving

difficult materials vibration

Screening machinery and equipment, vibrating screen large screen surface and large processing capacity to meet the production needs of the scene, vibrating sieve sieve sieve

surface structure using multi-stage vibration screen machinery sieve boxes and racks do not participate in the vibration mode of motion, so that the sieve to achieve a large-scale .

Inertial vibrating screen stone screening machine, eccentric vibrating screen, vibrating screen and self-centering and other types of electromagnetic vibrating screen, vibrating screen

is a kind of highly efficient new screening equipment, vibrating screen is not directly resting on the ground, should be placed on a flat smooth sleepers on and requires no less

than the distance from the ground

250mm, vibrating screen is widely used in mining, coal, metallurgy, building materials, refractories, light industry, chemical industry.

Shaker body movement perpendicular to the center line of rods or suspension rod, the oscillating motion of the body, the sieve shaker surface material to a certain speed to move

the discharge end, the material also be screening shaker, vibrating sieve sieve and screen box beams using high strength bolts, vibration

Moving sieve simple structure, convenient maintenance, shaker using tire couplings, flexible connection, smooth operation, part of the fixed and sliding along the face by the

material leaving the materials are sieved.

Shaker importance in contemporary industrial

Industrial growth on the variety and quality shaker rising demand, so that the growth of sand making equipment raised to a new stage, is now vibrating screen is toward

lightweight, environmentally friendly, simple structure, direction, yielding to the high efficiency quantitative growth: Industry Modernization

Encourage enterprises to increase the scope of the process, sand making equipment production skills greatly improved, efficient and productive energy necessary ancillary

screening machine.

Vibrating sieve sieve sieve surface inclination and treatment capacity and efficiency for screening, vibrating sieve sieve surface inclination, the greater the capacity the

greater, but less efficient screening, vibrating sieve sieve surface inclination at 15 ° ~ 25 ° between (for crushing plant when selecting an inclination of more than 20 °),

when the material

Whichever is greater when wet, the eccentric shaft circular vibrating screen vibrating sieve sieve surface inclination to take 20 °, general mine vibrating screen is mainly

used in metallurgy, mining, coal, building materials, electric power, chemical and other industries, especially metallurgical industry with more also, like the blast furnace,

the coking plant, the election

Mines, also often used to sieve shaker.

Even the best shaker if in the course of improper operation, all will likely reduce its normal life, especially mine shaker because its special working environment, and the

operation time prone to problems, so it's maintenance even more important to some, shaker in

Before starting work, be sure to carefully check something, first make sure the oil level is moderate, the oil level is too high will cause the exciter course of mobile screening plant work

difficult due to high temperature operation, the same oil level is too low it is possible to speak bearings grinding damage other components, but also pay attention to some

details followed

Do not underestimate any one screw, if there is a loose screw machine damage are likely to occur, or more serious consequences, shaker under normal circumstances Gesanchaiwu re

tightly screw preventive measures.

Cone crusher composition and performance

Cone crusher is an advanced high-power, large crushing ratio, high productivity hydraulic crusher, cone crusher cone crusher with the traditional structure is markedly different

in design, and focus on different types of cone are known so far The main advantage of the crusher, cone crusher

Machine must rack, horizontal axis, moving cone, balance wheel, eccentric sleeve, upper crushing wall (fixed cone), under Mobile crushing plant (fixed cone), fluid coupling, lubrication

system, hydraulic system, control system, such as several parts.

Crusher, small size, simple structure, large crushing ratio, low energy consumption, large capacity, uniform particle size, and the role of selective crushing, impact crusher

machinery compressive strength up to 350 MPa, with crushing ratio, cubic particles were broken materials such as excellent

Point of impact crusher as when driven by the motor, the rotor rotating at high speed, the material into plate hammer area of ​​the rotor plate hammer impact crusher, then was

thrown back on the device again broken, and then from bounced back on the back liner plate hammer area re-broken, this

Process is repeated, the material descending into one, two, three back cavity repeated broken until the material is crusher machine to the desired particle size by the discharge port.

Hydraulic cone crusher work processes

Spring cone crusher which is one of the first cone crusher, advanced by the development of a high-power, large crushing ratio, high productivity hydraulic crusher, spring cone

crusher in the digestion and absorption of countries with 80 international advanced level of the various types of cone crusher

Developed based on into spring cone crusher cone crusher with traditional structure is markedly different in design, and focus on the various types known to date cone crusher

main advantages.

Hydraulic cone crushing plant work, through the rotation of the motor pulley or coupling, drive shaft and tapered portion moving force in the eccentric sleeve for rotation about a

fixed lower pendulum movement, so that the hydraulic cone crusher crushing wall sometimes close and sometimes leave the solid mounted on the adjusting sleeve rolled Shirakabe

surface, liquid

Pressure cone crusher in the ore stone screening machine cavity constantly under attack, pressing and bending hydraulic cone crusher of ore crushing action is achieved, hydraulic cone crusher

mining construction industry in today's alternative spring cone crusher and replace the general hydraulic cone crusher is the latest generation products.

The latest vibratory screening machine

The latest vibration screening machine one-touch electronic control mature separation technique for rapid and accurate material 2 mm and fine separation. Touch screen

programmable controller allows vibration level, time selection, and suspended. Once you run vibratory Screening machine parameter settings, just tap "ON

Start "on the display screen to begin each new test. Many as 99 test files, can be stored in non-volatile memory, in order to ensure accurate repeatability. Quiet and compact

desktop units provide multi-faceted agitation based Material Type complete control for optimal performance. extensive

Vibratory screening machine user control performance option refers to SS-10 is suitable for a variety of materials. Vibratory screening machine action evenly distributed

throughout the screen surface specimens, and continue to be repositioned to ensure that the opportunity to deliver the maximum number of particles.
Under normal circumstances, the Dry vibrating screen machine is very easy to handle between 10 and 635 mesh particle size. Measured diagonally 5.6in (142.2 mm) screen provides a

bright, clear control and management information. Safety locking sieve shaker, ensure that the operation of the

Vibration energy transmission efficiency.
Linear vibratory screening machine as a major new high-efficiency grading and screening equipment, vibrating screening machines are widely used in various industries, such as

food, feed, flour, food, chemical, sugar screening and grading on. Linear vibration screening machine is China's current grading and screening

The advanced type of the selected device, can efficiently work. Because the material in three different business areas rotating, elliptical and linear, so it is graded quickly,

fully automated, greatly improving the classification ability, can achieve the best screening effect.

Crusher internally generated percussion sound reasons

crushing plant internally generated percussion reasons:

1 can not be broken material into the inside of the machine;

2 liner loose fasteners, hammer hit the liner;

3 hammers or other parts breakage.

Remedy:

1 parking and clean up the crusher machine chamber.

2 Check the liner fastening and hammer the gap between the liner;

3 Replace the broken pieces.

Crusher is the most vital factor

"In the crusher work, I do not know what causes it (Crusher) stopped there, did not turn up, and then I have to get friends knife, so as not to burn out the motor," saying this

is a concentrator crushing equipment operation personnel, he said, if you feel unable to temper it, then, often cause crashes crusher, therefore, in the material for crushing, be sure to

pay attention to note the uniformity of materials, there is the hardness of the material was the hardness of the material according to local, if hard, then you can add on a

light step.

Affect jaw crusher The main factors which normally affect jaw crusher The main factors nip angle and rotation.

 

Nip angle is between the movable jaw and fixed jaw angle. According to calculate the maximum nip angle up to 32 degrees. The actual use are less than 25 degrees, typically 18-20

degrees. Nie angle too, will make up the ore crushing cavity extrusion, resulting in injuries or damage to other equipment, and with the nip angle increases (crushing ratio

increase) decrease in productivity. Adjust the size of the port of discharge, also change the size of nip angle. In real life, according to the size of discharge requirements to

regulate the discharge mouth size. Therefore, to ensure product size requirements, as far as the port of discharge amplification is reasonable. Pai mine mouth size can be

adjusted by adjusting the block, in the regulation of the size of the port of discharge to the attention of crushing ratio and the relationship between productivity.

In a certain range, the number of revolutions of the eccentric shaft increases, can improve the production capacity of the crusher, crushing unit weight but also increases the

power consumption of the ore. Speed ​​too, would have been crushed in the crushing chamber ore time to discharge, and the clogging phenomenon, but to make the production capacity

reduction, power consumption increases, so should a jaw Semi-mobile crushing plant optimum rpm.

Cone Crusher Working Principle

Cone crusher crushing effect is basically the same with the gyratory coal crusher machine. Also using movable cone and fixed cone to carry crushed between the mine face. Dynamic cone

supported on spherical bearings, and fixed in a hanging vertical axis, the vertical axis is placed eccentric sleeve, and the eccentric sleeve and placed on the thrust bearing.

Moving along the vertical axis of the cone and driven by the eccentric sleeve, eccentric bushing by a horizontal axis and by the bevel gear and pulley to drive. By the motor

through V-belt pulley drive. The lower part of the vertical axis into the eccentric sleeve, when the eccentric sleeve is rotated to draw a conical surface axis. So moving cone

fixed cone near incurs when crushed ore. The upper and lower casing of two parts, connected by bolts. The bolt sleeve has a strong spring action of the spring is when the metal

or other hard objects falling into the crushing chamber, the crusher without damage (such as spindle, etc.). If you have slug or other hard objects (nuts, brazing top) along

with the ore into the crushing chamber, it is not moving cone is lifted, increasing the discharge mouth may be discharged. Sometimes hydraulic cone crusher is the use (or

pressure) device to adjust the size of the port of discharge.

Ore from the mine mouth to fall into the machine through the distribution plate, distribution panel mounted on the vertical axis side, because the vertical axis of rotation, and

access to the vibration, the ore evenly distributed in the cone four weeks. With hinge rod with handle and hinges, so that does not move up or down cone to adjust the width of

the port of discharge. The components are manufactured using steel, moving cone and fixed cone face inlaid with manganese steel liner to protect the cone from wear and tear,

worn liner can be replaced, replacement, poured melted between the liner and cone Lead close adhesion between them.

Crushing cone crusher, also known as short head cone crusher, or called "circular grinding." It is with the cone crusher structure is basically the same, the only difference is

the dynamic cone and fixed cone shapes are different. Short head cone crusher movable cone and fixed cone is relatively short, and the parallel between the two cones with

relatively long, to the mine mouth and discharge mouth is relatively small, so you can get smaller products (5-10 mm) .

In addition to the standard type and short head type cone crusher, there are interposed between the two called medium-sized cone crusher, can also be used for medium crushing

crushing. Standard, medium and short head cone crusher is the main difference between the cross-sectional shape of the different crushing chamber. Therefore, the row of ore feed

size and particle size are also different.

Gyratory crusher for primary crushing, standard mobile screening plant ore crushing machine is used in the short head type cone crusher for crushing. , The crushing cone crusher

specifications using dynamic cone bottom diameter D represents.

Impact crusher principle and application

Impact crusher during the impact of the material has the ability to make selective fragmentation than other types of crushers crushing products with more cubic content, but also

has the characteristics of large crushing ratio, simplified crushing process, and thus in the crushing industry has been rapid development, has been widely used in various

related industries.

First, the impact crusher

The so-called impact mobile crushers for sale is in the free state of an object by hitting power, and along its natural fissures, bedding planes, joints and other weak part of the selective

surface broken and crushed. It is different from the hammer crushing of objects in a constrained state by the striking force, but also with other cuts, economic pressure,

grinding crushing different, so the lowest energy consumption in the crushing process, and because of its ability to effect selective fragmentation to the monomer separation of

useful minerals and get more cubic product role.

Application of the principle of the impact of impact Feeding machine is the use of high-speed transfer of the hammer on giving crushing chamber materials for high-speed impact, so that

the material occurs impact crusher, and to the impact of the material after the block is high speed toward the back plate, the material being again after impact crusher, hammer

and from the back plate springs back crushing blow District repeat the above process, while the material in the hammer back and forth between the back plate and in between there

is the role of the collision impact. When crushed material finer than the gap between the hammer and the impact plate, it is discharged from the lower part of the machine is

broken products.

For different grain crushing energy materials which are different, the more material the small internal defects due to a decrease in the energy required for its greater

fragmentation. According to the relationship between energy and linear velocity formula: A = mra.

With the extractive capacity, post-mining material block size is increasing, while the single-rotor impact crusher due to its rational structure and other factors limit the feed

particle size increases, so the development of a dual-rotor impact crusher. In order to improve the role of the second rotor height has developed a set of dual-rotor impact

crusher, hammer wear and energy consumption according to the rotor speed and the relationship, the first at a lower rate on the material crushing , while the second rotor at

high speed on the material in the crushing, crushing ratio improved.

Vertical impact crusher is crushing on the material aspects of the use of impact crusher representative. We know that the hammer rotary hammer wear line with the increase in

speed non-linear growth, while crushing hammer when the line speed is high, the relative quality of lighter materials can not enter the high-speed rotary hammer effectively

combat zone ( just at the maximum line speed range), resulting in crushing effect is reduced and hammer wear increased. Vertical impact crusher center feeding method used to

enter the material after the initial speed close to zero, and gradually accelerated projectile out from the rotor body for impact crusher, impact crusher improves the

effectiveness and reduce the wear of wearing parts . This crusher has evolved into mechanical and self lined two categories.

Second, the impact crusher

As mentioned above, impact crusher exist in the actual use of the material is uneven, and easy "run chunk" of the situation, the impact hammer crusher will enable these problems

solved.

Material from the inlet to feed human inside, into the hammer workspace, subject to the impact of high-speed rotary hammer and broken, while the material in the back panel of

high-speed crash Youyi further be broken, and bounced back from the back plate hammer Head workspace, continue to repeat the crushing process, and eventually enter hammering

area (between the hammer and grate work area), the grate further by hammer hammering and abrasive. Practice has proved that the material is not a cycle in the rotor to be fully

broken, but to go through several cycles before they get fully broken. Bulk material during the impact may not fully broken. Counterattack plate and hammer can be passed between

the plates role of crushing roll, this effect has been confirmed by actual experiment (no grate in the case of its largest product size does not exceed the hammer plate and back

plate size of the gap).

Third, the impact hammer crusher structure type

Impact hammer crusher mainly by the body, rotor, grate body and drive four major components. Below these four respectively, for a brief majority.

3.1 Body

Its main function is to support the rotor and the grate of the body to achieve the broken material and ensure the crushing chamber large enough so that the material can be fully

broken. In order to prevent wear of the inner wall of the body material, the wear of the inner wall of the body are fitted with lining. Should be able to open the back plate to

the appropriate position (small size machine back plate opening and closing by the crane to complete, large-sized machines through the hydraulic system to complete), and other

back liner for easy replacement liner. Open the access cover can replace the hammer. In addition, open the access door can be removed from the body replacement grate grate.

Observed door open grate can be checked hammer and size of the gap and hammer wear.

, The choice of excellent anti-wear materials provided.
3.2 drive
Its function is the sub torque Yu movement, acceleration torque of the rotor. Usually V-belt drive: Winding motor ~ pulleys, rotors. This transmission mode can be obtained in a

smaller starting current high starting torque, absorbing crusher vibration generated when the work has a certain carrying capacity and overload. Pulley expansion sets are used

to connect, easy handling, with overload protection. Moreover, large pulley on the rotor wheel and take off role in ensuring the hammer plate and the back plate between the roll

effect.

3.3 Rotor
The rotor is the major crushing the machine tool, the general structure type and arrangement of hammerhead form.

3.4 grate body

Grate of the body is the material to withstand hammering the carrier, but it is also the material discharged from the constraints of product size body. It has grate plate and

grate two structures, the latter through Ga swab satisfy willing contempt offend strike line and  blind anxious drought Torr irresolute take along Ã?

Back plate back liner placement and structural design based primarily on the impact hammer crusher works, to ensure effectiveness and impact back plate back plate and hammer

plate between the roll effect. At home and abroad in the same type of machine body located above the grate of the back plate has a convex portion Q, K width of the grate of the

body because the upper edge of the support plate above the grate, in direct contact with the material, easy to wear. To reduce the wear and tear in the back liner adds convex

portion Q, the part is exactly aligned with the edge of the support plate, the main protective effect.
Fourth, the impact hammer crusher main working parameters to determine

Impact hammer crusher main working parameters, including speed, output and motor power.

4.1 Line Speed
Impact hammer crusher line speed is based on the nature of the materials, crushing ratio requirements, the machine structure and other factors, and considering the hammer worn

selected.

Line speeds increase, increased impact velocity, increasing the chance of the material blow, helps to get finer granularity, increase production capacity. However, too high a

linear velocity of the material into the hammer has hindered effectively combat areas, so that the role of sleep head of the material is cut more bi! State and increased wear of

the hammer, reducing energy utilization.

Reduce line speed can reduce the wear of the hammer, but also increases the material in contact with the hammer plate of probability, increase the hammer plate wear. Line speed

is a comprehensive consideration of the selection process. In view of the hammer and grate it by hammering between the body and grinding, cutting action limits, the line speed

at 30 ^-40m / s between the selection is more appropriate.

4.2 Production
Affecting the yield of many factors, such as: the requirement for crushing ratio, speed selection, the physical properties of materials, particle size distribution, the machine

structure and so on.

4.3 Motor Power
In addition to considering the power to determine the nature of the material, crushing ratio, processing power and other factors should also be considered when the start-up

phase hammer asymmetric rotor moment of inertia of the body large impact on power. Moreover, given the power to take a hammer impact crusher can meet the Ministry of energy

consumed completely final rapid recovery requirements.

Five, the impact hammer crusher basic structure to determine the parameters

5.1 the diameter and length of the rotor
The diameter of the rotor body and maximum feed size information. According to the impact theory, particle size and feed hammer proportional to the mass, and with the hammer

effectively combat height (ie the height of the rotor body exposed hammer) are closely related. In addition, taking into account the impact hammer crusher work process there is

a certain role when rolling, turning their anger must have sufficient capacity, which requires the diameter of the rotor body with feed particle size increases.

Typically, the diameter of the rotor body and the ratio of the maximum feed size is 2 ^ -4, take small mainframe. The length of the rotor is taken according to the production

capacity of a given size.

S.2 hammerhead
a. hammerhead hammerhead shape and the height of the rotor is exposed h.

Design, hammer face should in principle be the rotation axis of the rotor in order to achieve a positive impact on the material hammer. Taking into account the wear compensation

or hammer weight restrictions, a slight deviation. Hammerhead ends arc surface design should consider the introduction of bite angle a. This paper recommends a 5-100. Too large

bite angle so that the hammer premature wear and reduce the life of the hammer. The arc length is mainly based on the type of hammer weight required strength corresponding

hammer shaft diameter, and take an arm fixed thick. Hammer shaft and arm strength assessment can hammer in working condition in equilibrium when the force is calculated, and

when working with hammer centrifugal force as the payload checking.

Hammerhead exposed rotor body height h that is highly effective in combating the hammer. From the point of impact effects and hope h large production capacity, especially for

bulk materials, to achieve the desired impact, h is bound to large, in theory, if the force of the impact gob gob right through the center of gravity. Then shocks the best

results. Consideration to the structural design is reasonable, and the power consumption increases, the person must be properly increased. At the same time people can not be too

small, too small h increased the hammer on the material increases the abrasive cutting, it will affect the handling capacity of the crusher exacerbated hammer wear.

Large jaw crusher main bearing replacement repair process

Generally large jaw crusher main bearing mostly used off sliding bearings, bearing lined mostly by Babbit made this bearing scraping the higher technical requirements, poor or

scraping gap adjustment improperly Research watts or Burnt accidents. 1 Remove the old tile banana screen should

Do the work
 (1) bearing joints old tile measurement port shim thickness.
 (2) measuring spindle levelness.
 (3) Carefully check whether the spindle is smooth, whether there is rust, bumps and other defects, if any, should try to eliminate.
 (4) bearing the old tip clearance measurement, and the axial clearance backlash.
2 detection jaw crusher tile back case and bearing contact
  According to "JB/T5000.10-1998 heavy machinery assembly general technical conditions" requirements, it must be good scraping tile back to reach the technical requirements.

Otherwise, the equipment operation between the bearing and the bearing prone reverse slip or turn. To prevent this from happening,

Generally using pin and sleeve positioned.

3 bearing scraping the technical requirements
  According to heavy machinery assembly general technical conditions" in the requirements, the spindle scraping should meet the following technical standards.
(1) both the spindle and bearing uniform fine touch, but also with a certain gap, so that the upper and lower contact angle with the spindle bearing portion is formed outside

the oil wedge and the wedge from tile mouth began a gradual transition from maximum to zero.
(2) the contact angle is not too large nor too small. The contact angle is too small, the pressure pad will increase, serious cause greater deformation pad, accelerated wear,

shorten the service life; contact angle is too large, it will affect the film formation, damage to the lubricating effect. Therefore, without affecting the bearing

The conditions set pressure, the contact angle the sand vibrating screen smaller the better.
(3) within the scope of the contact angle the more actual contact spots, more detailed, the more uniform the better.
4 main bearing scraping
  Scraping shaft bearing should be the basis, both on the research carried out after the use of bore scraper scraping. Scraping the beginning of the procedure is to first

scraped tiles, tile and then scraping the beginning, and then fine scraping the entire tile, scraping the side of the gap, and the last point of the oil. Bush can generally be

divided into rough scraping scraping. Scraping and scraping three fine finishing process.

Scraping should be used to take the first re-light, scraping heavy to stay light, scratch big to stay small principle. In scraping bush, not only the contact point, the contact

angle meet the technical requirements, but also to make the top. Side clearance to achieve the specified value.
(A) the upper and lower watt coarse and fine scraping
First, the two under the tile installed in the bearing, and then coated on the spindle display agents (such as red lead powder, red Qian oil), mounted on the spindle bearings,

two or three times to the positive and negative direction of rotation, Then remove the spindle, according to the bearing points on the distribution of colored rough scraping.

Rough scraping order

Segment can be positive rake angle scraping. Hand can head a few times heavier, multi-scrape some metal in order to accelerate the progress of scraping. When the contact area of

​​50%. These fine scraping. In the fine stage can be a small rake angle scraping scraping knives and bearing centerline trace should be a 45 ° angle, scraping can not use

excessive force

, To prevent the knife traces generated ripples. Scraping knife to trace around the cross, until the contact angle of contact spots within the uniform clouds, horizontal spindle

error in 0.2mm / m far between. On tile thickness scraping methods and requirements under the tile of coarse and fine scraping method requires basically the same. Do not

Is put on the same tile on the research carried out on the top of the spindle.
(2) the upper and lower watt fine scraping
Upper and lower watts through thick and thin scraping, the contact spot is still large, the need for further refinements. First, the upper and lower joints by adding tile tile

mouth gasket, the spindle, the tile locating pin installed, tighten the screws, so that the direction of rotation of the spindle in the normal running laps, and then removed the

tile

, Hanging spindle go for lapping work. Scraping, it is best to use negative rake angle scraping until the contact surface of the contact pattern meets the technical requirements

so far
(3) side clearance and keep scraping oil spots
After finishing scraping, scraping side clearance and should be kept oil spots. Scraping side of the gap, the ends should be set aside as part of the sides to prevent the

outflow of oil from the tile, thus ensuring the bearing lubrication. In the tile contact portion between the contact portion and not to be rendered gradual transition; not have

clear boundaries. Then

In the bearing contact point arc scraping of the oil, the oil remaining in point is used to store oil. Save oil spots can be round or flat, depth is generally 0.3 ~ 0.5mm, an

area of ​​15 ~ 30mm2, the total area should not exceed scraping of the oil on the contact point of the arc, save points are used to store oil lubricants. Deposit

Oil spots can be round or flat, depth is generally 0.3 ~ 0.5mm, an area of ​​15 ~ 30mm2, the contact area of ​​the arc should not exceed 1/5.
5 bearing clearance measurement and adjustment methods
  Oil wedge bearing clearance determined thickness, and affect the operation of the spindle accuracy. Excessive bearing clearance caused by equipment vibration, reduce equipment

life; bearing gap is too small will result in Burnt. Therefore, a reasonable conditioning bearing clearance is an important issue that must to reach the required standards
(1) Adjustment of tip clearance measurement method C
Can change the height of the top bearing clearance at the tile joints to adjust the thickness of the spacer opening. The fewer the number pad, the pad compaction better

equipment running more smoothly, so to ensure the case does not appear Burnt, gaskets better. Tip clearance measurement methods commonly used pressure to lead France

Measurements.
(2) side clearance adjustment and measurement methods
And the journal bearing gap between the side, which is usually measured using feeler gauge. When measuring feeler inserted into the gap in the length of the major axis diameter

of not less than 1/4 of a side bearing joints equal gap should be uniform.
(3) axial clearance measurement method
Bearing axial clearance is generally measured with a feeler.
  After years of practice, we believe that the top bearing shaft clearance should be 0.15% to 0.2%, the backlash should headspace of 60% to 100%, the axial clearance should be 1

~ 3mm for the best.
6 assembly and commissioning
  When assembling, we must first bearing, journal, and lubricant oil collector piping clean. Then the main bearing, connecting rod, etc. assembled. Install belt should make it a

little higher than normal operation loose a little. Test, first start pumps, oil and make a little when compared with the normal operation

Larger. If the testing process does not appear significantly increased and the current oil temperature significantly increased the phenomenon, it shows successful repair, the

equipment can be put into normal use.

The purpose of crushing

Solid material under the action of external forces, overcome the cohesion of the material, the large particles broken into small particles is called pulverization. Material

crushed by the crusher and mill to accomplish the purpose of crushing as follows:

1. As for homogenizing pulverized, increasing the surface area of ​​the material. Because of the large particulate material banana screen broken into fine powder state so that can be of several

different solid materials (mainly different chemical composition) is mixed to obtain a good uniform results.
2. With beneficiation of mineral resources development and utilization of increasingly lower ore grade, ore in order to obtain the active ingredient, requires a lot of ore

processed through beneficiation to take advantage of. And selected ore refractory ore more and more useful component ore closely integrated with the impurities in a

Since, for the decomposition of the active ingredient from the ore, as long as it sufficiently pulverized, after processing in order to separate the useful component with

impurities and removing impurities, than the pure concentrate.
3. Particle size classification in industrial production, due to the specific production process requirements, must meet its mill product size
4. Increase of specific surface area of ​​the material surface area per unit mass or volume of the material of the surface area, the smaller the particle size of the material the

greater the specific surface area. Increase the specific surface area of ​​the material the material can contact area with the surrounding medium increases, so that the reaction

speed. For example, the catalyst then

Touch response, combustion and gasification of solid fuels, materials dissolution, adsorption and drying, as well as in the chemical industry on the use of fluidized bed powder

particles large contact area to enhance the mass transfer and heat transfer, etc. In addition in the cement industry in the final product - together with gypsum cement clinker

powdered state, crushed

The finer the particle size, the greater the surface area, the higher the reference numeral cement.
5. Superfine With modern industrial developments, new materials development, the need to grind very fine material (10μm less). To meet the fine ceramics, electronic materials,

magnetic materials, catalysts and other emerging industrial needs. Currently using superfine mill - with high-speed impact powder

belt weigh feeder, extreme pressure mill, high pressure grinding.

The roll crusher roller surface welding method

Squeeze roller surfacing
Qian'an Hip Hing plants using manual arc welding, surfacing double double roller crusher roller surface, has made life of 10 months, 150,000 tons of clinker crushing effect. Welding

points are as follows:
(A) electrode selection: To use D-65, D-667 and 506 electrodes, welding ago, according to electrode for use, the electrode drying and placed in an incubator set aside.
(2) roller surface treatment: roll surface can be divided into local direct welding repair and overall the whole welding cleared after two methods, it can be said that the two

processes. Roll width direction along the uneven wear and patterns, uneven wear and hard spots overall roll surface wear, can take the local repair methods

Direct welding; 5-6 times directly after welding, due to the mother repeatedly withstand high compressive stress, welding microcracks expanding, roller surface will have a

certain thickness of fatigue level, then wear repair time if Direct welding electrodes, easy to produce layers off, so the need for grinding rolls

Thoroughly clean the surface layer and then carry out fatigue resistant layer surfacing. Hip Hing cement plant on the roll surface cleared for the whole repair welding. Either

directly or as a whole cleared welding crusher manufacturer repair welding, grinding roll roundness error and two roll diameter error can not be too large, otherwise it will cause the level of

vibration roller press

And two roller uneven load increased. Cleaning roller surface fatigue level, carbon arc gouging available to clean up, to the fatigue of the roll surface layer of the net plane,

exposing the roller base material layer. Before welding, welding according to instructions for use, for drying welding, weldment preheating, slow cooling after welding.
(3) To use more than one power of 10 kVA or 20 kVA or more DC AC welder. To reverse a DC welder (then the positive electrode). When welding with AC welder required load voltage

≥ 70V, 200A current should be controlled so. Such as no-load voltage is less than 70V, the

To increase the current to weld and base metal full fusion prevail. Bead width and height ratio of 3:1 is appropriate. And the base material so that it actually fused solid, to

form the desired tissue abrasion.
(4) welding sequence and thickness: roll surface after preheating, first with 506 electrode surfacing layer 1-3, looking round the roll. Then evenly deposited several layers of

D-667, to achieve the desired thickness. D-667 after the solder layer welding, surfacing layer and then D-65, cladding thickness of 3-5mm; D-65 solder layer welding

After surfacing layer and then D-65 Ling-shaped pattern. (Roll surface wear produced crushed material must also have the necessary pressure and relative sliding two factors.

Pressure determined by the nature of the material, is often difficult to change while the form of a roll to reduce the surface pattern was in the extrusion process with the

roller surface

Relative sliding, relatively easy. Herringbone early domestic use pattern while the circumference to prevent sliding material, but does not restrict access to the material in

the axial sliding of the extrusion process, particularly in the smaller particles in the extrusion material, the wear is more serious. In contrast, the use of Ling-shaped

pattern

And the middle of the roller surface of hard particles, abrasion resistance for the best. ) Ling-shaped pattern of the side length of 4-5cm, bead width of about 1cm, height of

about 4mm. The wear layer of uniform thickness to seek to the pressing roller is always kept in the course of a circle.
(5) surfacing, to three shifts, people do not break Xiema make weldment maintain a high temperature for a long time.

The roll crusher working principle and structural characteristics

One, also called the roll crusher double roll crusher or a roll crusher, the machine working principle is to make the material falls between the rolls, roll in the opposite

direction of the rotation of two role, was the machine to obtain the required granularity of the material .

Second, the structural characteristics: complete specifications, structural characteristics vary, depending on the model, designed by Red gear unit and chain drives. The main

structure of the gear transmission with a fixed roller, active roll shaft, the body, chassis, cover, housing and other parts of the gear set long

Into the machine powered by an electric motor on the sheave outgoing, and then through a pair of intermediate reduction gear, the fixing roller rotates, and then by means of a

fixed roll the other end of the pair of long pinions, driving the movable roll, two rolls to a relative movement of the squeeze press materials.

1, the fixed roll rolls and events: part of the roll crusher is the main part of the shaft, wheel housing, conical, rolling, gear, long pinions, the bearing cap, and the bearing

and other parts. Fixed roll and roll axis activity, followed by two rounds are bonded shell, tires mounted

In the wheel housing on one end with a long shaft gear, fixed the other end of the roll with a cylindrical gears, rollers on both sides of single row tapered roller bearings

plus. Work roll is responsible for the major parts broken surface of the groove surface are two fixed according to the use, because the roll directly with

Material contact is often replaceable wearing parts. So tire material used ZG50Mn2 after quenching and tempering heat treatment, has a strong, durable, and easy disassembly.

2, the active devices: mobile bearing side with movable means, when the machine is not in operation if the crushing equipment of the metal object or accidentally fall into the machine, and

its size can not be in the gap between two rolls by, does not result in damage to the machine, so loaded with activities

Set, the principle is the active bearings move backward, so that can not be broken objects or metal through to adapt to this situation from happening. Activities device mainly

with nuts, bolts, enhance deed block, rear, seat bearings, springs and plates and other components. The active bearing frame on the bottom shelf,

Activity bearings can slide back and forth along the chassis, rear end of the active spring loaded bearing holder, the spring force required in the assembly apparatus to be

protected, when it comes to the material can not be broken, but the pass when the roll gap, the pressure roller growth, forcing the spring compression, so stick to rolling

activities

Away from their original position, so that the roll gap to expand, so the material can not be broken through. Activities device bearing frame moves adjusted stroke must be noted

that the gap between the rolls tie increased to the maximum, and a pair of long gear must ensure that the teeth together to prevent shedding.

3, the drive shaft: shaft is equipped with V-belt and pinion gear on both sides of two bearings.

4, Chassis: Chassis made by the steel and channel a metal structure, which has six screw holes can be submitted on the basis of fixed chassis, two feet on the drive shaft

bearing and fixed roll bar bearing body 2 are bolted to the bottom shelf, activity bearing body roll on two feet on the bottom shelf

Before and after the event can not fixed on the bottom shelf, in order to adjust.

5, the body: the body by the angle and the steel plate, which is fixed to the chassis, the two face tie rollers form a closed shape, material block is not used to prevent

crushing, that is, from both sides of the roll bar out of the phenomenon of occurs, during periodic inspection and repair, this part can be removed.

6, long gear housing: Long gear housing with steel and angle steel welded, bolted to the chassis.

7, the main structure of the chain drive are: chassis, fixed roll bar, roll bar events, wheel housing, support bearings and adjusting devices and other components. Two roller

shells flat bar keyed to the drive shaft of the two shaft ends of the bearing frame has two supported and fixed to the machine, crushing roll bar

By axle wheel shell, composed roll bar, bar roller shell with 6 hook bolt and nuts together, because the roll directly in contact with the ore, it is necessary to frequently

replace wearing parts, so a wear resistance than ZG50Mn2 made of good material, the motor will power through V-belt pulleys

Transmitted to the spindle, the spindle with the other end of the chain, then through a pair of sprockets drive, drives the driven wheel, so that the two crushing rollers do

opposite bar rotation, because of the material and the friction between the roller bar, rotatable tie bar roll to the material involved in the two spaces formed by rollers, and

gradually

Is crushed, the crushed material in gravity discharge from the feeder breaker, the crusher when the material does not fall across the machine, bar roll shell outwardly by action of the

spring automatically moves the bar increases the gap between the rolls , to protect the machine from damage.