Historical mining sieve shaker

Mine shaker since the beginning it has been generated through a lot of changes in generations , it is also an important component of the screen during this period were great

changes. Shaker sieve shaker is wearing coal vibrating screen parts on the screen so the quality is directly related to the user's cost level shaker , screen

Types can be divided into : stainless steel mesh, stainless steel dense grain I-Net, so all kinds of stainless steel crimped wire mesh square wire mesh is widely used in

screening of solid materials , Mining vibrating screen screening, filtering liquids. Initial shaker screen is square grid is prepared by commodity grade wire

, Its life is shorter, screening efficiency is lower.

   Today I produced mine shaker sieve are used silk , metal wire or synthetic fibers such as woven materials , uniform and stable surface holes , with the role of screening and

filtration fabrics for industrial use . apron feeder Rubber and polyurethane to replace the original wire, by means of rubber and

Flexible polyurethane itself , reducing soil and ore screen bonding ; increase mesh stiffness, increase the opening rate , replace the canvas with a rope skeleton skeleton ;

improve the shape and arrangement of the sieve opening orientation , improving the material was sieved through rate. Holes ( mesh size sieve unit length often

) , Said width of each aperture is also useful to represent the .

    There are also a lot of time with stainless steel mesh material, not only durable , but also will not rust , it looks very beautiful. Stainless steel is mainly used for pH

conditions screening and filtering , the oil industry make mud network , chemical fiber industry screen, electroplating industry for acid

Net wash , gas, liquid filtration and other media separation . Generally made ​​of stainless steel to death, nickel wire, brass wire for the material. Today screen has been in

industry, agriculture , science and technology , defense and other fields has been applied. On to the cutting-edge technology , high-tech industry , down to the basic

necessities of life , cultural life

Live , simultaneous development of the national economy and people's livelihood solidarity. We will be more effort from top to bottom in the screen production , produce more to

meet the requirements of the mining vibrating screening equipment .

Structural Classification motor feeder and production process characteristics

GZG motor feeder in the production process can be massive, granular materials from silos in uniform, regular, continuous to go to the affected device in the gravel production

line for continuous crusher evenly feeding, and coarse screening material, widely used in metallurgy, coal

Crushing and screening equipment processing, crushing and screening plant building materials, chemicals, abrasives and other industries.
GZG motor feeder
GZG series motor vibrating feeder can be made according to user requirements the following types:
1, open, sealed models.
2, sealed: In addition to feeding Feeding machine the entire estuary seal, use a soft connected to, the affected device to connect to seal feeding;
3, under the trembler: vibration motor located below the feeder.
4, the vibration type: vibrating feeder motor is located above, in the space affected by the material, and other special requirements;
5, speed type: vibration motor can be stepless between 50% -100% of its nominal frequency;
6, pedestal: for heavy feeders.

GZG vibrating feeder (feeder) Features: Smooth vibration, reliable operation and long life; exciting force can be adjusted, and control the flow can be changed at any time, to

facilitate stability and regulation; vibration motor as vibration source, low noise, consumption electrically small, regulated performance, no red material phenomenon. Structure

Simple, reliable, easy to adjust to install, light weight, small size, easy maintenance, to prevent dust pollution when using the closed structure of the fuselage.

Maintenance of vibration sieve

1 , vibration sieve sieve must regularly check whether the surface is damaged, if there is need for timely replacement vibrating screen design of damaged , avoid screening unqualified products ,

affecting production.

2 , vibration sieve spring to check whether feeder breaker there is loose , if there is need to use the wrench to tighten the loose , so as to achieve better screening effect .

3, check the vibration sieve sieve frame VU -ring for damage , if there is need for timely repair damage , prevent material leakage and reduce the screening effect .

4, check the motor vibration sieve , at the mouth periodically from the butter butter filling .

Shaftless screw conveyor advantages

Shaft screw conveyor divided into two kinds , and shaftless screw conveyor with shaft screw conveyor which is generalized screw conveyor, screw conveyor shaft is in its

functions on the basis of optimization and Belt feeder design optimization over A transport unit . Because it uses a non- central shaft set

Meter, the overall use of steel has a flexible auger material , which has the following outstanding advantages : anti-winding resistance. No interference with the central axis ,

for the belt -like, easy to wound materials have special advantages.
Shaftless screw conveyor screw conveyor has a tradition that can not be replaced , shaftless screw conveyor for conveying the sewage treatment plant of its trash rack fine grid

spacing of 50mm decontamination weight feeder machine gate residue and filter press cake and other materials . Good environmental performance . Fully enclosed screw conveyor and easy to clean

Rotating surface , can guarantee the delivery of materials and environmental health from pollution, does not leak . Large torque , low energy consumption . As shaftless spiral ,

material clogging , the discharge opening is not blocked, which can lower speeds , smooth transmission, reduce energy consumption. Torque of up to 4000N / m. Transmission

capacity

. Throughput is the same as a conventional shaft screw diameter 1.5 times . Long distance transport . Single conveyor lengths up to 60 m . According to user needs , the use of

multi-level series -mounted , ultra- long-distance transportation of materials . Can flex . Move type shaftless screw conveyor, mobile workers can

Work, a multi-purpose machine . Either below the material , but also ends the material. Using a special lining , the machine can work at high temperatures . Compact , space-

saving , beautiful appearance , easy to operate , economic and durable .

Choose a different grid structure

Three-dimensional vibration sieve shaker known , belongs to a lightweight high precision powder griddle , different sieve size using different grid structure , according to the

selection of different mesh wire diameter thickness fixed grid form , so there are fast replacing the screen help customers improve efficiency , in order to

The following will introduce several common grid :

1: Snap Fasteners grid known as male and Screening machine female groove flange grid is two flanges a groove , a convex groove , the convex flange welded on the sieve frame groove to groove

flange moving parts , the mesh placed in the middle of two flanges with screws , flat screen surface natural tension , generally 12 mesh -30

Mesh screen using this structure .
2: U -type grid network structure called the picture belongs to vibration sieve is very commonly used model , first with the pressure of the thick wire mesh tooling diameter

mesh fixed to the U-shaped groove, this layer is called mesh sieve network, fixed network and then work online side tile in the head with a clamp fixed four weeks , this grid

structure

Advantage is the replacement network sand vibrating screen more quickly, working under the net mesh its skeleton , supporting the work screen, the screen surface to ensure flatness of the work to

prevent the material impact collapsed network, while preventing sieve bouncing ball hits the net work , crashed through the net work of this unique network structure

Drawback is that mesh networks overlap with the work , the impact screening area .

3 : Double A grid structure known as single-wire or double hoop grid light grid structure , this grid with two annular circular hoop fixed taut mesh, the biggest advantage is

that this grid penetration rate is relatively high net .

Ensure the correct operation of beneficiation efficiency centrifugal concentrator

Centrifugal concentrator operations directly affect beneficiation efficiency. In order to operate a good centrifugal concentrator , you should pay attention to the following

aspects:

1, to stabilize the volume to the vibrating screen design mine , to mine the ore concentration and particle size . These factors directly affect the sorting index .

2 , to prevent mouth and rushed to the mine mouth clogged ore , which requires punching mineral water to clean , can not have grass residue . Raymond mill manufacturers of

series sand making equipment , sand making Mobile crushing plant equipment, sand making production line sand making equipment , reasonable price , reliable performance, artificial sand is the

preferred device .

3 , should always check the operation of the control mechanism is flexible, sub-ore , broken ore , red ore is coordinated . Can not make to the mining, ore, tailings mixed with

each other , or affect the separation efficiency .

4 , pay attention to check whether the device Calvary worn or broken parts , hydraulic meets the requirements, if found to have leakage, leakage of slurry phenomenon to be a

timely manner.

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 .

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.

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.

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.

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.

The strength and fragility of the material introduced

The general performance of the material crushing strength of the degree of difficulty, also known as the fragility of the material. The same crusher crushed under the same

operating conditions of different materials, the production capacity is different, indicating that a variety of materials different friability.

Friability and the material strength, hardness, density, uniformity of the structure, water content, viscosity, cracks, surface condition and the shape factors.

Material strength and hardness are expressed resistance to external force, the strength and hardness of the material is difficult to Grand broken. But the mere hardness of the

material is not necessarily hard to broken, because the material is a block broken split open, so the crusher manufacturer difficulty determining factor is the material strength. The

hardness of the material must be very difficult grinding, crushing process because the grinding process and the different mill grinding process is the body of the material

surface constantly working to generate a large number of fine grinding process, therefore I decided to ease grinding factor is the material hardness.

Uneven nature of the natural material, the same material measured intensity data vary greatly. Therefore, in practical work often measured hardness of the material, the hardness

of the material to some extent reflects the ease of stone screening machine the material, the hardness of the material so that their common friability.

New category crusher device group with

Installation problems 1) Crusher mass 36t, the workshop crane of 10t, unable to meet the needs crusher installation, on-site practical need 80t crane installation. 2) equipment

base for the steel platform, steel erection quality requirements are relatively high. 3) anchor bolts required

And equipment will be installed.

Equipment installation points 1) in plant row - axis at the left channel reserved. 80t crane along the passage into the plant within. As layers platform obstruction, crusher can

be installed directly in place, now 3m edge of the platform mounting position extends a steel platform, the installation device

Into temporary platform, then use the inverted chain moves horizontally to the installation location. 2) equipment early leveling.

a of equipment given to find a positive basis, using shims or temporary horn group devices preliminary leveling, alignment work. b steel ruler to measure the elevation datum

point from the base to the device under the base surface distance, equipment installation shall meet the requirements of the drawings, requiring deviations within 5mm

. c Use the pull chalk line method measuring equipment centerline and basic vertical and horizontal centerline deviation should ensure that within 5mm. d Mobile crushing plant, grinding

equipment and other equipment to connect or convergence relations, positioning, and its positioning plane, line, or point and the plane of the baseline installation location and

elevation allow

Xu deviation should comply with: longitudinal and transverse plane position tolerance of 3mm.

e When shimming parts, such as adjusting the gap junction sliding bearings, adjusting eccentric cone crusher manufacturer and so on, to use the equipment supplied gasket; such as field

equipped with, should be exactly the same with the original gasket.

f install leveling: Longitudinal level of not more than 050/1000, the horizontal level is not greater than 020/1000, on the spindle and bearing carved surface measurements. g

stand above components should base alignment, leveling and tighten the bolts only after the assembly. h frame pre-connecting bolts

Tight power equipment shall meet the requirements of technical documentation, tighten the order should symmetric force should be uniform.

3) secondary leveling. a secondary leveling should review the equipment installation in the original elevation and centerline. b secondary leveling should be in the original

time to look for a positive reference plane carried the official horn adjusted horn placement requirements are as follows: Each bolt next to the at least one set of horns: Horn

group can

Put stability and does not affect the case of grouting, anchor bolts and base should be placed close to the main parts of the force at the bottom. Horn group into the underside

of the device base length should exceed equipment anchor bolts.

Horn set bolt center spacing from the edge of 4060mm, the bottom horn in contact with a solid foundation to achieve contact with the surface, does not warp; adjacent spacing

appropriate for the two horns 5001000mm, if more than 1000mm, then the middle of every 1000mm put a set of horns, when the bolt spacing

Less than 300mm, it would be placed on the same side of the bolt group of horn or use a jack horn. Horn face should be exposed edge of the base device 1030mm.

Paired oblique horn length of the lap length is not less than 3/4 of the wrong angle no greater than 3.c matter horn in each group, and retest equipment and equipment level

degree vertical and horizontal concentricity without changes, subject to change, re-adjust until qualified. d secondary alignment method same leveling, aligning, and symbols

Together these requirements. e level degree after passing alignment, calibration base elevation meets the requirements, in conjunction with relevant departments to promptly

check and acceptance, horn groups on both sides of the interlayer spot, cross secondary grouting.

4) water medium hydraulic coupler.

Filling range of coupler 40% of the total volume of 80% is not allowed beyond this range, but not allowed full, because filling exceeded 80% of total volume, will make couplers

in operation because of overload due to sharply boost heating , couplers internal pressure increases, causing leakage, and even cause mechanical damage

Bad. Filling the order: first tighten bet slug and unscrew the vent fusible plug for use, and in accordance with the manufacturer's instructions as provided by the amount of

injected fluid-filled inner coupler, shall be brought into any impurities; then screw on the fusible plug ; finally slowly rotate the coupler until the liquid begins to overflow

from the injection hole

So far, the time from the injection hole position foundation height, horizontally directed from a motive or protective cast, to make the reticle mark, after checking the amount

of liquid as the standard line.

Debugging a) preparation. Check all fasteners, without loosening; refueling; connect power; jog, determine the motor turning correct, two toothed rollers teeth without

collision. 2) load test. Starter motor, so that the crusher load running 1h, observe the functioning of the machine, note that there are

No abnormal noise and the impact of the phenomenon, the sealing surface reducer whether oil spills, grease pump is working properly. 3) load test. Start the motor, allow the

device to normal operation after feeding, running 1h. Then the operating handle hit the automatic position, running 2h. Observe whether the material normally broken

Broken, check the particle size to meet the requirements.