2013年9月28日星期六

Overhaul of linear vibrating screen

       Following on linear vibrating screen for common failure to make a summary for the majority of users shaker learn !
1 linear vibrating screen cable outlet, we should choose the flexibility of the cable. This is because the linear vibrating screen cable outlet bear the shock , so if we use

less flexible linear vibrating screen cable outlet , Linear vibrating screen then it is easy frayed , broken.

2 linear vibrating screen motor leads in qualifying is very easy to root broken or frayed vibration injury , if the use of linear vibrating sieve process this does occur , we

should start from the inside of the motor linear vibrating sieve rewire , must not and just so-so .

3 We used linear vibrating screen bearings should crushing equipment be used when heavy duty bearings go, so can carry a certain axial load , regardless of the direction of how to install , linear

vibrating screen life without axial load.

4 For linear vibrating sieve eccentric we must guard sealed , so as to effectively control dust into linear vibrating screen shield inside , it will not affect the linear shaker

vibration motor running.

Shaker vibrates the main bearing

Bearing vibrations are mainly due to bearing rotates under the action of the load , causing the deformation vibration of bearings .
  1.1 Vibration bearing rings
  Vibration is essentially a rolling vibration screen bearing of the vibration of the bearing rings , the bearing structure , rigidity , precision manufacturing , installation , and usage

conditions and other factors. If the bearing inner ring raceway has a larger radial corrugations , the inner bearing outer ring rotation will produce radial vibration . Bearing

inner ring will not only cause a corrugated outer radial vibration , but also will cause axial vibration of the outer ring , coal screening machine the bearing will be subjected to axial load the

bearing , the outer ring of the axial relative position of the change, so rotating the inner ring of the bearing outer ring also produced mouth axial vibration shaker at work ,

for high-speed rotation of the bearing , because the ripple caused by the vibration frequency, there may be equal to the rotational frequency of the exciter shaft , which

produce resonance .
  Cage vibration 1.2
  Vibration of the cage , mainly due to the rotation of the bearing retainer and rolling vibrating the vibration generated by the impact on each other . Vibrating screens , the

impact load accompanied by various alternating load , will cause severe vibration of the holder , the vibration is generally believed that " due to the rolling element and the

sliding friction between the cage retainer induced from excited vibration .
  Vibration is mainly produced in the retainer ball bearing and tapered roller bearing in the radial gap is too large , good lubricating properties , shaker exciter shaft

transmission torque fluctuation such circumstances likely to occur.
  1.3 rolling body vibration
  In a large shaker ball bearings and roller bearings , when the bearings mainly take radial load and low-speed rotation , it will produce the whereabouts of rolling vibration .

Trial found that when the bearing radial load and grease in case of poor performance , early operation will hear "click \ Kacha" sound vibration , which was mainly due to the

load zone of rolling after leaving suddenly accelerated and cage collision and vibration emitted sound , this crash is inevitable but will disappear after a period of operation

.
  When the bearing radial shaker operating under impact loads , only a few months of its internal load bearing rolling elements , because the elastic contact with the ferrule

constitutes "springs" which supports the rolling line of action of the radial load generated through periodic oscillations ( and therefore at the center of the vertical shaft to

move or do horizontal movement ) . Especially in the low frequency vibration shaker , the type of vibration is more obvious .
  1.4 Friction Vibration
  Rolling friction vibration mainly refers to abnormal vibration , friction and vibration in general in a large ball bearings prone to using grease lubrication performance

particularly bad fats are more likely . According to the test and observation , bearing friction and vibration generation often has a direct relationship with the oil properties

. When lubricating performance is not good , or dirty , then the friction vibration prone , but also with the bearing outer raceway processing quality , and if this method of

using special precision machining , can be better controlled friction stir .
  Rolling over the vibration is often the result of various types of vibration . Tests showed that the bearing operation under normal circumstances , bearing parts bearing

surface waviness is caused by vibration of the main factors.

2013年9月26日星期四

Vibration motor vibration machinery industry development prospects

Since dust vibration motor work environment , the environment is extremely poor, if shields Mifengbuyan easily into the dust , causing eccentric

Block friction operation , thus Circular vibrating screen burning motor . So bad place in the work environment , a protective cover to increase the seal , PAC

Second, we must always clean the dust inside the protective cover . Equipment conveying material temperature is not too high. Because the vibration motor is rigidly connected

with the device

Can also be said as a whole , if the device temperature transportation of materials , it is easy to cause vibration motor and chassis ground temperature increases

, Causing cooling difficulties , thereby burning motor . Preventive measures: 1 . Ways to reduce the temperature of the material bridge crane ; 2 without shadow

Work under the Linear vibrating screen premise sound equipment , cranes try to keep away from high temperature material vibration motor . General Motors - ends with a fan , work to make

Direction along the flow of the chassis at the vertical ribs , not heat faster, but also clear the dust from the motor in a good state

Work . The vibration motor can be due to fanless cooling , thanks to the natural cooling , plus most of the work environment is very harsh , dusty , dust

Easily deposited on the surface of the motor , causing the internal temperature is too high , burning motor . Preventive measures: 1 . During the design process , from the

bridge

Heavy machine vibration motor surface should be smooth, so easy to accumulate dust , if dust larger working environment should be considered less chassis

The surface of the cooling ribs , electric single girder overhead crane filter because at this time , not only would not achieve the cooling effect cooling ribs , but easy to

make the dust

Accumulation , impeding the motor cooling ; 2 . Often clears the motor surface dust , so that in good conditions.

Warehouse wall vibrator some basic knowledge Introduction

Warehouse wall vibrator is a vibrating motor as vibration source of energy through the products, it is by high-frequency vibration and impact, effectively eliminate the

Internal friction , deliquescence, stone screening machine live , segregation and other reasons caused by bridges, doming , blockage phenomenon , so that the material from the hatch successfully

Discharge , to ensure a stable supply the Feeding equipment necessary equipment .
 Warehouse wall vibrator is widely used in metallurgy , chemical industry , building materials, thermal power , coal, food, cement , pharmaceuticals , fertilizer , food ,

foundry

, Ceramics , abrasives and other industries in silos anti- blocking purposes.

2013年9月25日星期三

Vibration motor applicable environmental temperature

Various types of vibration mechanical vibration motor is a common power source, its excellent performance is coal vibrating screen widely used in coal, metallurgy, mining, electricity , food ,

chemical, foundry , cement, ports and China Vibrating Screen other sectors of vibrating feeder, vibrating screen , vibrating shakeout machine , vibrating fluidized bed and attempts to prevent the silo

Plugs and other mechanical equipment
Vibration motor applicable environmental temperature
Vibration motor in the purchase process special attention to the vibration motor applicable environmental factors
1 : Ambient temperature is less than or equal to 40 degrees
2 : Altitude less than 1000
3 : Supply voltage 380v
4 ; power frequency ; 50hz
5 ; work: continuous

Vibration sieve should be noted that during transport matters

Vibration sieve in the coal production line transport process is prone to the phenomenon :
1: Drop shipping support easy
2: The transport process is easy stone feeding machine to be squeezed , so that the dust cover compressional deformation vibration sieve
3 : Transport easily fall in spring
Solution to this problem is to tighten the screws , screw fixed support

2013年9月24日星期二

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 .

Vibration motor overhaul to note

Vibration motor maintenance should pay attention :
   First, the vibration motor cable outlet to stone screening machine withstand vibration , so to use the cable for greater flexibility in motor leads , motor leads to the motor outlet generally root

easily broken or frayed vibration injury , when there is such a failure to open the motor from the motor inside re- wiring.
   Second, eccentric sealed protective cover Dry vibrating screen to prevent dust into the interior , affecting the motor is running .
   Note: rational use , diligent serious inspection in order to better play the role of the vibration motor , vibration motor can prolong life.
   Third, the vibration motor bearings should I use heavy-duty bearings , can carry a certain axial load , regardless of how the mounting direction , bearing life without axial

load. Remove bearing good when you want to record the position of the eccentric and the exciting force percentile checked after replacing the motor end bearing

Shaft should have a certain axial string action , the first trial is not installed eccentric empty motor , operating normally after the original record will reset eccentric good

.

2013年9月23日星期一

Vibration platform Manufacturers

Vibration platform manufacturers are mainly located in Xinxiang , Beijing , Shanghai , etc., some place where vibration equipment production base . Mainly because these regions

have a certain production capacity and coal screening machine sales areas , since these areas Xinxiang is the most basic place , it comes naturally called the greatest

The most important production base.
Vibration platform in technical support , unlike other vibration devices. General vibration equipment is widely applied to screening , rather vibrating platform is applied to

the material real shock . As in recent Linear vibrating screen years , customer needs are constantly increasing , the customer's requirements are not

Breaking changes , vibration platform manufacturers to propose a new problem , that is, how to adapt to the new economic development needs and how to meet the diverse needs of

different customers . In order to better production ready , vibration platform manufacturers in the continuous market research,

From the actual production for experience and start from the technical aspects , scientific and technological strength for the bigger and stronger the vibration platform ,

vibration platform manufacturers are actively carry out technical innovation.

Use of vibrating motor pay attention to what issues

1 , anchor bolts loosening problems
This is caused by the vibration motor burned one of the major failures due to the special structure of the vibration motor itself , its ends eccentric excitation force generated

per minute to two thousand times the vibrating screen supplier impact on the bolt, and then due to the vibration of the motor itself part of the vibration , it is very easy to loose bolts ,

Once a loose bolts in a short period of time will cause other bolts loose, and even rupture , thus burning motor .
Preventive measures: ① often reinforced bolt ; ② increased locking devices ; ③ foot and motor ground floor to ensure good contact , even by force to make a few bolts .
In the selection , try using one of the seat vibration screen shell vibration motor ( ie, to foot the chassis ) , place one foot is processed, it can ensure its standards. The seat shell

allogeneic ( ie, to the foot end caps at both ends ) , due to the foot is a graded processing, re- assembled, the assembly error

The presence of poor , difficult to guarantee the level of the foot , so a few bolts evenly by the force will not be easy , but by a larger force of a bolt is easy to loose,

thus causing the other bolts loose, broken , burned the motor.
2 , Installation Issues
Because vibration motor at both ends with heavy eccentric , such as vertical or inclined installation ( ie, vertical or inclined axis horizontal ) , the bearing axial eccentric

block to withstand gravity . If no special device in vibration motor ( ie plane bearing ) , it will adversely affect the bearing , thus shrinking

Short life.
Preventive measures: ① Select the vertical vibration motor ( ie increase inside plane bearing ); ② Avoid vertical or inclined installation.
3 , eccentric adjustment
Adjust the eccentric block, mistakenly tune ends eccentric direction reversed, so that the vibration motor torque generated a space , so that the vibration motor work in a non-

normal state , thereby causing burned. Therefore, adjusting the eccentric block , be sure to pay attention to its symmetry , that both ends of the eccentric block corresponding

to twenty-two

, Or that both ends of the center of gravity of the eccentric shaft parallel with the cable , can not be a different surface states.
4 , protective cover sealing problems
Since most of the vibration motor is very poor working conditions , dusty , if shields Mifengbuyan easily into the dust , causing friction eccentric operation , thus burning

motor . So bad place in the work environment , a protective cover to increase the seal , two should always clear

Li shield inside the dust.
Through the above explanation, if there is any questions, you can then ask us.

2013年9月22日星期日

Vibration motor

Shaker vibration motor as vibration source , with its excellent performance is widely used in coal, metallurgy , mining, electricity , food , chemical, foundry industries such

as vibrating feeder, coal screening machine , vibrating shakeout machine , vibrating flow fluidized bed and silo anti-clogging Crusher machine machinery and equipment

Vibration motor excitation force adjustment

Each brought in vibration motor shaft has a fixed and an adjustable eccentric eccentric , eccentric adjustable regulator and fixed angle between the eccentric excitation force

can change the size .

Centrifugal force adjustment procedure

1 , remove the protective cover .

2 , loosen the outer eccentric stepped bolts.

3 , should be in the same direction on both sides of the eccentric rotation of the eccentric shaft aligned with engraved lines showing the value of the exciting force on the

line to the desired value at the exciting force and check both ends are the same angle.

Vibration sieve in the transport process prone to problems

Vibration sieve in the transport , in general, the following issues
1: vibration sieve cover vibration screen crushed
2 : vibration sieve support Drop
3 : vibration sieve spring off
 The factors that influence the vibration sieve and troubleshooting methods
The factors that influence the vibration sieve
① suitable particle size range , the granularity of the material closer to the more difficult the separation boundary Sand vibrating screen diameter ;
② material in the moisture content increases, increased viscosity , easy to plug into a group or sieve ;
③ particle shape , density, material easy sieving ;
④ screening device parameters.
Common Faults and exclusion method
1, the motor rotation poor
2 , abnormal sound
3 , the raw material can not be automatically discharged
4 , fine NetEase damaged
5, stainless steel export split screen frame

2013年9月21日星期六

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 .

Vibration sieve structure and characteristics

Screen cover and screen frame to vibrate part , the other part of the non- vibrating portion , in addition, both the base support functions . Vibration sieve screen frame is a

major part of the vibration part .feeder breaker frame usually consists of plates welded together, to undertake its upper and lower ends are a circle, with a lower internal flange ring

for fixing the mesh group

Parts and other structures .
Features are:
A small size , light weight, plate feeder easy to move, the direction of the discharge port can be adjusted , coarse and fine material discharged automatically , can be automated or manual

operation.
  (2) screening of high precision , high efficiency, no powder, tablets , mucus class can be used.
  3 screen does not block , powder does not fly , the smallest up to 500 mesh sieve ( 28 micron ) filter the smallest up to 5 microns.
  4 unique grid design ( picture style ) , screen used for a long time , for network easy , just 3-5 minutes , simple operation , easy to clean .
  5 no mechanical movement , maintenance simple , can be single or multi- use , and material contact parts is made ​​of stainless steel ( except for medical use ) .

2013年9月17日星期二

How to solve the vibration motor noise excessive vibration anomalies

A noise exception
1 When the stator and rotor rubs , will produce grazing shrill chirping sound . Should check bearing damage need to be updated . If the bearing does not go bad and found the

bearing inner or outer Apron feeder ring inlay sleeve or replace the bearing and end caps .
2 vibration motor phase operation, roar particularly great. Can be powered down and then switch to see if I can start properly . If you can not start , there may be a phase

circuit. Switches and contactor contacts will occur not turned missing running .
3 bearing severe lack of oil , the bearing chamber can be Coal screening machine heard from the hissing sound. Bearings should be cleaned , add new oil.
4 blades touch the shell or debris, will issue a crash. Blades should be corrected to remove the debris around the blades .
5 . Rotor bar fault occurs when the high low hum , speed is also slow , the current increases .
6 first end of the stator winding wiring mistakes, muffled roar , the speed also decreases.
7 a stator , a rotor core loose.
Second, excessive vibration
1 motor rotor unbalance ( eg rotor counterweight screw off ) shall be calibrated balancing .
2 Transmission pulley unbalance , static balance should be corrected .
3 shaft bent. Replace the shaft, or the car straight casement ( heat set ) .
4 installed base is uneven or unstable fixed . Should be re- installed , fixed stable.
5 . Rotor bar fault , the load current varying oscillate .
6 incorrect or loose coupling assembly .
7 is driven mechanical lose balancing .
8 The stator windings partial failure , rotating magnetic field unbalanced vibrations .
9 due to wear , the bearing clearance is too large .
10 core deformation or loose.
11 fans imbalances.

How to choose the shaker

Vibrating screen, we used not unfamiliar , whether it is linear Dewatering screen is good , vibration sieve or just round vibrating screen worth mentioning are relying on the

principle of vibration for materials screening . We all know about the principle , then we in the actual purchase process should be how to choose their own shaker it ? Here we

simply like to share what I sell shaker as personal experience .
First, we need to know ourselves what is the material Linear vibrating screen , screening materials, physical properties, including : the proportion of granularity and size , material

moisture content and temperature of the material , which are related to our choice of vibration sieve fundamentals ;
Secondly, why we screening , which includes : grading sieve , sieve to remove impurities , filter screening for various purposes such as screening ;
Finally, we choose what 's important to a shaker , including: what we want and production ( generally based on kg / hour to calculate ) , particle size sieving and grading

layers , workplace and machine uptime , there are some incidental factors such temperature, acid , oil, anti-static, or seal and so on.
We just put all these factors are taken into account , then we can get what we need a shaker .

2013年9月16日星期一

Plugging holes sieve shaker


Vibrating sieve , according to the nature of the material , will produce a variety of forms of the sieve clogged.
Sieve clogging the main reasons the following:
( 1 ) contains a large particle belt weigh feeder separation point near the screen ;
( 2 ) materials with higher water content ;
( 3 ) spherical particles, or the banana screen mesh material having a plurality of contact points ;
( 4 ) strong electrostatic material itself ;
( 5 ) of fibrous material and dendritic ;
( 6 ) material in the tabular grains more ;
( 7 ) After a coarse woven wire mesh , according to the material of choice Mozhao suitable mesh ;
( 8 ) Casting screens, such stereotyped thick polyurethane screen mesh, hole shape design is unreasonable, did not reach the small great , leaving the particles stuck.

Vibration mill uses

Vibration mill uses : ZM series vibration mill is a new and efficient milling equipment, monocular , binocular and three- cylinder three structural types , which 2ZM series

vibration mill using the widest Belt feeder range . Vibration mill is the use of high frequency vibration of the cylinder , the cylinder of steel balls or bars media rely on inertia impact

materials , dielectric material impact when acceleration up 10g-15g, it has a compact structure , small size , weight feeder light weight , energy consumption low , high yield, grinding

particle concentration, process simplification , simple operation , easy maintenance, easy replacement liner media , etc., can be widely used in metallurgy, building materials,

mining , fire , chemical , glass, ceramics , graphite milling industry .

2013年9月15日星期日

Vibration sieve sieve note when asphalt

Vibration sieve asphalt mixing machine is the main component , and the vibration sieve mesh is used to complete the screening process of the main working parts . To build high-

quality roads, must have high-quality asphalt mixing machine , and to ensure high-quality paving , it must use high-quality

Resistant mesh to ensure accurate grading , to prevent mixing phenomenon.
This article discusses wear weave mesh shield in the use of rotary vibration sieve elements and failure analysis . Because shields wear high carbon manganese steel wire mesh is

woven wear is quite good, generally sifted cycle 60,000 t or more, but fatigue is not enough, so in use sheets

Tight mesh oscillating screen is guaranteed life cycle of the key.
1 Guaranteed vibration sieve mesh tension is guaranteed at any time in the life cycle of the screen determinant found in actual use , some of the normal screen is not premature

damage is attributable to the use of the screen in a tensioned state could not caused . The reason may be the device and the dewatering screen two ways:
( 1 ) Equipment reasons
Rotary vibration sieve box in a long time deformation ; supporting or part of subsidence caused by welding desoldering sieve tensioning fact seemingly fixed bad ( not mesh

tension ) , the mesh generation of secondary vibration fatigue fracture .
( 2 ) Screen reasons
① tensioning bolts loose. Failed to timely tensioned mesh ;
② screen for too long, but not tensioned screens, both sides of the tension of the screen , curved edges size should generally be smaller than the distance of the screen box

walls 40 ~ 50mm, depending on the equipment before and after the tension of the mesh decide ;
③ Some mixing machine vibration sieve tensioning plate due reasons, curled portion sizes A and angle flanges have special requirements , dimension A is generally 35 ~ 40mm, if

the size of A requires less than 30mm, the flange angle requirement is less than 35 °, and the failure to produce the specific requirements made of the general form, is

Can not properly tensioned mesh prematurely due to damage . Mixing machines generally have three kinds of screen tensioning means . Either tensioning method , the screen must be

in the correct tension at all times ( to be checked at any time when it is used ) ;
( 3 ) bearing screen box a few uneven spring stiffness ( elastic uneven ) leaving the sieve box irregular jitter, will also affect the screen life.
Two main reasons for early damage sieve and troubleshooting methods
If vibration sieve mesh aperture and wire diameter mismatches , when small and wire mesh coarse , because knitting wire bending too large, causing material stress concentration

, but also make screen breakage during use . As long as users in the use of wear-resistant screen during some of the problems noted above ,

Will be able to give full play to wear mesh long life cycle, and good wear resistance and reduce production costs , and achieved good economic benefits.

Solve wet material clogging shaker method

For wet sieving materials, often because of blockage affecting sieve shaker shaker work because damp fine grade viscous material into a group loosely bonded to each other

difficulties , or adhering to the coal screening machine screen surface clogged sieve , so that the screen surface effective screening area decreased, resulting in lower screening efficiency

Drop, material group not loose , not hierarchical , the overall campaign to make the screening process difficult to complete . Thus damp fine grade adhesive material screening

screening operations is urgently needed to address the major issue.
Vibrating screening equipment from now also appears to continue to progress and development , the scope of screening material is constantly expanding , previously difficult for

some wet and shaker screening material Linear vibrating screen and always love to monensin , but after Beijing and mechanical continuous efforts have developed a suitable wet

Fine fraction difficult materials dry screening equipment , is currently handling difficult materials large screening equipment .
Sieve sieve refers to large-scale motion parameters of large-scale and large-scale screening area . Sieve motion parameters mainly to solve large-scale screening difficult

materials problems , sieve sieve area mainly to solve large-scale processing capacity. Sieve for screening large-scale mechanical strength

High demands , general mechanical structure of the sieve has been difficult to meet this requirement. Movement of difficult materials show : To obtain good screening effect ,

and large capacity , must be sufficiently large amplitude and vibration intensity .
    Powerful Tandem mechanical vibration shaker with large amplitude , high vibration intensity , low frequency and technological characteristics of the elastic screen surface ,

so that the powerful vibrating screen is different from other types of screening equipment . Work process remains the biggest opening rate, thereby screening efficiency,

processing capacity

Force, sieve easy to replace, reduce costs. Powerful vibrating screen large screen surface and large processing capacity to meet the production needs of the scene . Sieve screen

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

2013年9月13日星期五

Vibration sieve blocking network solutions

Vibration sieve during normal operation , due to all the characteristics of the material , the shape will produce a variety of different forms of sieve clogging. Blocked the

main reasons are the following :
1 , contains a large number of particles near the separation point ;
2 , materials with higher water content ;
3 , the spherical particles, or the mesh material having a plurality of contact points ;
4 , can be electrostatically ;
5, the material has a fibrous material ;
6 , the sheet more particles ;
7 , woven wire mesh through thick ;
8 , such as thick rubber mesh sieve , hole shape design is unreasonable, did not reach the small great , leaving the particles stuck. Because of the need China Vibrating Screen material
Most grains are irregular , so blocking reasons are varied .
Solution
To effectively prevent clogging shaker should be reason for blocking the sieve measures :
1, when the fine-grained material , clay content of more, and sieve size is small, the water on the vibrating screen manufacturers plugging it play a decisive role .
2 , when the material is greater than 5% moisture , if the material for drying unconditionally , response sieve , sieve for the targeted selection.
3 , when the water is greater than 8%, should be used wet sieving .
4, flaky particles more material , you need to change the broken material crushing methods and different ways with the granularity of the process .
Reasonable to reduce the tension adjustment screen mesh clogging is an effective method , the tension of the screen reasonable support beam with a slight secondary vibration ,

thus effectively reducing the occurrence of clogging , practice, Constant tension of the tensioning hooks made ​​of bodies, namely the tension bolts plus

Spring-loaded .
The importance of safe operation as a non -standard equipment shaker vibration equipment for most users, the shaker may all devices in the user hardly a major equipment ;

however shaker failure frequency is higher than the traditional power machinery products, The reason is that the vibration device itself

A kind of vibration destructive conduct scientific use of a product . Equipment for conventional mechanical vibrations , it means that the occurrence of failure sign , and by

vibrating the vibration device is precisely the work required to complete one purpose and requirements of a product. Although the vibration caused by industry are

Li Yu , anti- vibration device itself destructive optimized structure design and research, but still vibrating equipment failures occur frequently . And the vibration sieve is

often arranged in the production process the user 's throat , once shaker fails, will cause the entire production system linkage parking ,

Giving users a significant loss of production . On mining, coal, metallurgy enterprises, such as a sudden stop repair one day , then at least ten direct production efficiency

loss of tens of thousands , as many as hundreds of thousands or even millions of dollars . To avoid this phenomenon, the user only keep abreast of vibration

Sieve operating conditions , to discover hidden maintenance arrangements well in advance .

Mechanical vibration screening equipment market demand conditions

Vibrating machinery in China's metallurgical , mining, building materials, water conservancy construction, highway construction have been applied. According to statistics, the

domestic market needed annually vibration machinery 8200 Taiwan ( sets ) , of which a variety of large vibrating machinery 2600 Taiwan ( sets ) , metallurgy, coal industry

Demand accounted for 70% of market capacity , the international market is only the Middle East, Southeast Asia each year 500 ( sets ) around various large vibrating machinery.

Currently, the domestic production of vibration machinery manufacturers less than 100 , and the majority of small businesses , the annual output of about 3000-4000 units ( sets

) .
As China's various industries to improve the level of technology and production technology development , the urgent need to deal with large capacity, high Mining vibrating screen efficiency ,

reliable operation of screening equipment , especially for difficult to handle large amount of screening material , screening operations more efficient is true. Therefore, both

at home and abroad to spare no effort

The large-scale mechanical vibration , intelligent development , thereby reducing the number of mechanical vibration , reduce equipment costs and device management costs ;

reduce plant area ; reduce the initial base for investment ; facilitate the implementation of automatic detection and automatic control.
Semi-mobile crushing plant machinery in accordance with the temperature of the material is divided into cold and hot griddle griddle two categories , cold griddle using a wider

range , which in addition used in metallurgy , coal, mining, building materials and other industries, in recent years, water conservancy construction, highway construction in

the applications. Vibration Machine

Firearms in the industry has a very bright future , the domestic market demand is increasing. Internationally China Metallurgical Equipment Corporation , according to the data

provided , only the Middle East, Southeast Asia cold griddle annual demand is just 500 units.

2013年9月11日星期三

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 .

Screw conveyor motor power tilt angle and the impact on transport efficiency

Screw conveyor is a continuous material handling machinery , due to the continuous conveyor working principle , structural features , the direction of transport of materials and

methods and a range of other special characters are different, so variety. In the screw conveyor design, delivery of materials is mainly based on the ratio of

Heavy transport most , transmission distance, transmission angle , and other parameters to determine the productivity of the screw conveyor and power . Design parameters are

mainly two categories, one for the design of screen machinery constant, which is based on the objective laws , the specific conditions as determined by the known data or parameters is given in

advance . Another

Variable is set , it is designed to change in the structural parameters to be determined .
Since a variety of transport of raw materials , screening equipment and the characteristics of raw materials with the type of material , origin, humidity, and preparation and purification effects,

due to a variety of different cable changes , therefore, the main parameters determining the screw conveyor , from which transport mechanism , material properties , etc. into

the

Hands as a variety of tests , made ​​some design parameters , material properties can be designed to meet the screw conveyor .
Tilt angle: angle of the inclined conveyor conveyors process has an impact on the productivity and power consumption , it is generally in the form of a coefficient to reflect

the impact , the screw conveyor transmission capacity will increase as rapidly with increasing inclination angle reduced, while , spiral lose

Tilt angle when sending machine layout will also affect the delivery of materials results. Also the size of the tilt angle also affect the fill factor allowed tilt angle

increases, the allowable fill factor is smaller, the lower the transmission capacity of the screw conveyor . Therefore, to meet the conditions of use of the premise, in this

selection

Horizontal arrangement , improve the transmission efficiency , the inclination angle is zero.
Vibration motor power calculation power of the screw conveyor , the following force to overcome .
( 1 ) to lift the material to be shipped "horizontal or inclined ," the energy required ( 2 ) the material is transported to the trough wall and the screw surface of the

friction caused by the energy consumption ( 3 ) between the particles within the material caused by the relative friction energy consumption: ( 4 ) caused by the movement of

materials along the material he thrust bearing at the Mount

Energy consumption caused by rubbing , and the intermediate bearing and wood at the end bearing the energy consumption caused by friction .
Screw conveyor at a certain speed , the motion of the material particles Akira response is not significant. However, when more than a certain speed sufficient , the material

subjected to excessive force to be tossed tangential , perpendicular to the conveying direction to start generating the radial jump , and thus adversely affect the

transportation process . Therefore

, The maximum allowable speed screw conveyor should be based on the material being transported to determine the minimum jump height

2013年9月10日星期二

How to distinguish and ultrasonic vibration sieve shaker Material

       Used shaker customers know shaker sieve materials are stainless steel and ordinary steel two kinds , general steel shaker more economical , but now many of the materials

for equipment materials which have a screen machinery requirement for the stainless steel material contact parts material, stainless steel should be used and

Shaker, but stainless steel is also divided into 201,304,304 L, 316, 316L and other types or even better . So how customers distinguish shaker stainless steel used in the bad?

Here we tell you several ways .
The first method , magnetic experiment . Take a magnet vibrating sieve surface test to see with no magnetic force , if it is not a little suction, do not feel suction , it is

304 stainless steel , if you feel the suction is 201 stainless steel. However, this approach

201 and 304 can distinguish two kinds of screening equipment material, but can not distinguish between 304 and 316 types of stainless steel . In general most of the customers choice is 304 , and

this approach has been able to help customers distinguish whether the manufacturer of the plate with a 304 .
The second method , observation . 201 Stainless steel machining or ultrasonic vibration sieve shaker surface after polishing closer look will find some pitting, dark spots . The

304 stainless steel processing out of the sieve surface smooth and clean , bright brightness than 201 materials , 201

The brightness of the stainless steel material is slightly darker.
The third method , the chemical experiment . This approach requires the customer to use some chemicals to detect the composition of the stainless steel . However, this approach

is rarely used user .
Now used in many industries will generally require shaker 304 stainless steel , such as food, chemical, medical and other industries directly related to the safety of human life

. This material shaker acid than 201 materials , rust better.

Vibration sieve usage in different industries

Under the conditions for a variety of professional product solutions vibration sieve :
  1 , the food industry
    For hygiene in food production requirements, the structural details shaker made ​​several optimization designed to meet the sanitary conditions ;
    A, holding solid mesh optimization design ;
    B, connecting structure professional design ;
    C, using food-grade silicone sealing material requirements , etc. , has been recognized by customers .
    2 , under the conditions of gas closed Semi-mobile crushing plant program
    Different sectors of gas closed condition requirements vary , the solution is vastly different . Installation of the cast, the discharge port supporting components ;

changing screen machine main structure , unified unit interface specifications, etc. means to complete the transformation of service to good effect.
    3, large throughput , rapid screening program
    In a variety of expansion modules with vertical shaker in order to achieve low -station , continuous uniform feeding , portable station , so a variety of production

conditions, dust collection requirements , greatly improving production efficiency.
    4 , a small removable banana screen workstation solution
  The program can be any kind of vibration sieve basis , together with supporting material storage , feeding , discharging and other components to form a comprehensive screening

system that can be easily solved with the screening -related production organization .

In the pharmaceutical process applications which are used in screening machine

     Dedicated shaker pharmaceutical industry plays in the powder Circular vibrating screenscreening material reached the required particle size effect, for the pharmaceutical manufacturing industry is a rather special , all about the powder vibrating sifter is also relevant in the pharmacopoeia requirements .
Screening : a sieve particle size of the material particle size graded according to unit operations .
Raw material particle size after crushing its uneven require Sand screening machine only after mixing . In pharmaceutical production process, screening tools used a standard drug screening . Our drug screening based on Taylor standards and the " Chinese Pharmacopoeia" standard steel. Tyler standard length per inch with a

An aperture with a diameter of the sum of the number of ( approximate number ) plus unit mesh sieve as the name , such as every inch lengths on 100 single aperture diameter of a single called 100 mesh sieve . " Chinese Pharmacopoeia" provides for a total of nine sieve , sieve, sieve diameter of the largest on the 1st , the 9th sieve

The smallest diameter of the sieve .
Pharmaceutical industry screening machinery used in reference to the aperture is " Chinese Pharmacopoeia" made ??. Common screening machinery is circular vibrating sifter , electromagnetic vibrating sifter . Circular vibratory screening machine is mounted on the motor shaft two unbalanced heavy hammer, hammer the upper sieve

A horizontal circular motion , the lower weight makes sand net vertical motion occurs , thereby synthesizing three-dimensional transport vibration sieve . Material falling into the center of the screen , after screening , the screen above the coarse material from the outlet , screening out material from the lower part of the outlet line . Its diameter is generally pseudo screen

0.4 to 0.5 meters , each screen can be made ??of one to five .
Electromagnetic vibration sifter by the electromagnet , screen, frame, spring contacts and other components , the use of higher frequency and smaller amplitude vibration . Sieve fitted with rails , slide mounted on the carriage , on the border of the sieve supported electromagnetic vibration device, the screen slides back and forth along the motion .

Adding high-end materials from the sieve , coarse material from the screen at the next port discharge , the Department of material discharged from the screen below . High frequency machine , 3000 ~ 3600 times per minute , a small amplitude is only 0.5 to 1 , can be used in the screening of sticky medicine , the screening efficiency .

Improve the efficiency vibrating sieve summary

A . Select the appropriate type of shaker vibration frequency is higher, the better screening ; in shaking sieve surface particles mainly along the sand vibrating screen surface sliding , because shaking sieve shaker shaking frequently than low frequency , so the shaking sieve screening less effective ; cylindrical screen due to screen surface easily blocked , so the screening

Efficiency of two . A reasonable choice and adjustment of the vibration motor vibration motor excitation force is reasonable selection of key aspects affecting the performance of screening and vibrating force is a major factor affecting productivity screening
III. Improve screen surface movement pattern stone screening machine surface discharge end people should be greater than the amplitude of the vertical discharge end of the vertical amplitude. This is because people have a greater vertical discharge end of the amplitude of the end of the thicker material allows effective stratification, while with the angle, so that the side of excess material quickly spread out to the middle of the screen surface

, The fine material in a relatively thin layer of the layered material through the sieve , thereby increasing the efficiency of the actual screen surface ;
Four . It can reduce the use of non-metallic materials sieve sieve sieve surface and the adhesion between materials , so that the material to produce secondary high frequency vibration sieve to avoid congestion, enhance the permeability of the material , and can ease the sieve material on the sieve was the mechanical action of the surface , larger than the wire mesh can withstand vibration

Amplitude vibration .
Five . Multiple feeding method using a multi- channel feed , equivalent to an increase of the width of the screen surface , reducing the screen surface to the material thickness , is conducive to quickly touch screen surface fine material through the sieve , while fully use of screen surface , reducing unnecessary transport of coarse particles away , thus

Increase its efficiency .
VI. Strengthen the operation and management of vibrating screens , feeding requirement uniform, continuous and appropriate , ensure that the material along the entire width of the screen surface evenly distributed through the sieve in order to facilitate fine particles , resulting in higher efficiency of processing and screening . In addition, we must also strengthen screening machine maintenance and repair , and

When cleaning the screen surface and repair , replace damaged screen surface , to ensure the integrity of equipment status .

2013年9月8日星期日

Disc feeder introduction and classification

Disc feeder is an indispensable accessory products processing equipment , from the Vibration feeder body , drives, metering belt conveyor and metering device component. Main function is

to provide feed material supply banana screen other equipment , allowing the material evenly into a device so that the next step may be a

Work, labor-saving , but also protects the device's performance and prolong the life of the entire production line equipment .
Disc feeder hanging open points (DK), enclosed hanging (DB), closed -block (BR) and an open -block (KR) three. Disc feeder is suitable for the following fines 20mm feeding

equipment . Disc feeder and conveyor driven by a set of device drivers , the driver installed

Electromagnetic clutch set has achieved feeder open, stop , and the role of both functional transformation .

Heavy plate feeder operation and maintenance and overhaul procedures


The operator should be familiar apron Vibrating feeder structure and application , each class should be checked before the operation plate feeder parts are normal, chain plate connecting

bolts are loose , no abnormal before starting operation . Here to introduce you to heavy plate Pan feeder in operation England note , and

Its maintenance and repair procedures.
1 Use the board in the chain should always maintain a certain thickness of material , generally not less than 460 mm . The state is not allowed to unload directly to the chain

plate discharge, when emptied can not be avoided when the chain plate before unloading Lay a layer of debris, to prevent the direct impact of the chain plate , when the bulk

material clogging

Is not allowed to use the form explosive discharge ;
(2) Install the rear plate feeder spout top to the distance between the top of the chain plate not less than two times the largest block of material , to ensure smooth flow of

materials to improve the service life of the chain plate . To avoid spills and the materials and materials generated by the friction caused by the sound baffles , guide plate

should be installed on both sides of the bezel with the chain plate

A gap left between 50-100 mm . The bottom edge of the guide plate from the surface of the chain plate maintained at 10-25 mm , to prevent material spills, tensioning device away

from the axis of the silo wall should leave some space , usually 350-500 mm , ease of maintenance disassembly ;
3 apron feeder chain pitch inside track pin bushing wear to greater than 7 mm , the sleeve should be transferred to a new angle or replace the chain ;
4 plate feeder disassembly expansion sets , first loosen all the screws , but do not all of the screws removed. Remove galvanized screws and washers , the removed screw into the

holes before the pressure in the auxiliary ring , gently tapping the screw head , so get moving expansion sets , then pull out the screws , expansion sleeve that is pulled along

Out ;
5 mounting plate feeder expansion sets , should the original installation of the joint surface clean , evenly coated with a thin layer lubricants ( excluding molybdenum

disulfide ) , the expansion sleeve screws with a torque wrench by diagonal cross evenly tighten ;
6 apron feeder unit bearing mounted head , the minimum clearance should ensure about 0.08 mm , radial clearance reduction in the amount of 0.09-0.11 mm can be. Rolling tail unit

should ensure that minimum clearance of about 0.055 mm , the radial decrease in the amount to between 0.06-0.07

2013年9月6日星期五

Rods feeder structure comprehensive analysis

Rods feeder structure is simple , no wear parts , the exciting force is relatively small , use, maintenance,banana screen  widely used in mining , metallurgy , building materials , chemical

industry , mineral processing, stone crushing , coal and other industries crushing , screening production line medium .
Rods feeder works
New feeder vibration motor , the series feeder for coarse crusher evenly before feeding , and because of the role of bar screen surface , but also get rid of dirt and other fine

materials , reaches a pre- screening capabilities to improve crushing capacity . The series Linear vibrating screen for primary crusher ago

Uniform feeding bulk materials , and because of the role of bar screen surface , but also to get rid of dirt and other fine materials , reaching pre-screening function, can

improve crushing capacity, especially suitable for building stone , the hydropower industry and metal ore crushing before feeding .

Comprehensive analysis of the structural composition of the feeder

Feeder feeding by the guide sleeve rotatable disc and the scraper and other structural components. The material within the hopper through the guide sleeve material deposited on

the disc with wear-resistant liner , with the carousel Vibration feeder the material to be scraped by the scraper , scraper position or adjust the level of material guide sleeve can be

changed feeding amount . Round

Disc diameter generally less than 3m , speed does not exceed 10 rev / min .
Disc feeder smooth and reliable operation , low energy consumption , more convenient to adjust the Coal vibrating screen amount , but the structure is relatively bulky , for viscous smaller

powder granular materials .
Some of the feeder from the housing and impeller components. Casing, the bottom of the inlet and outlet ports , respectively, and silos, by feeding equipment connections.

Impeller rotates about a horizontal axis impeller material falling into the cavity between the cells , with the impeller rotation by a half weeks after discharge into the

feeding equipment . Equalizing pipe can enter the feed zone before

Hyperbaric chamber cell vent to prevent the feeding area can not feed . Impeller speed can be adjusted to change the quantity . 500mm impeller diameter generally less speed does

not exceed 45 rev / min . This feeder structure is relatively simple , light weight, small size, good sealing when feeding for powder

Or granular materials.

2013年9月5日星期四

Spiral Classifier been recognized with excellent performance

Spiral classifier is a classifier developed over the past century due to its excellent performance and high long-term productivity gain market recognition , so far spiral classifier classifier sieving machine has become the main model . Hydrocyclone is a spiral classifier in the more advanced grading equipment,

In recent years, domestic producers based on the actual needs hydrocyclone spiral classifier to improve the use of more wear-resistant rubber material and is directly connected with the control device to promote the classifier widely application and promotion.

This year is also a fine sieve equipment in various industries has been generally applied , it is mainly based on material density of particles of different sizes according to their physical characteristics according to its other classification , usually graded according to their buoyancy called wet classification , However, the accuracy of its classification

Not high. The hydraulic classifier is widely used in our country is mainly conical grader grader and geometries , this grading machine for metal ore used only on oscillating screen , the use of relatively narrow ranges .

Although the invention spiral classifier and applied a long time, but because of its superior performance has been in use ever since. But before the old-fashioned spiral classifier due to its low efficiency grading , spiral shaft fracture is more prevalent and other reasons have also been in the industry for a long time criticized later

With the technological level has been improved several times , such as multi-layer sealed bearings , propeller shaft using the new seamless solve their problems off the shaft .

At present, China ore grading equipment for industrial use in the spiral classifier is still the main use of the device.

Innovation is a long-lasting crusher key

At present, China crusher industry is the trend of the times , for the introduction of technology innovation from the situation changes. Crusher industry has become an important coal screening machine industry in the industrialization process , with high technical content, industry related degree , obvious economies of scale characteristics of industrial development .

Thus, the enthusiasm of enterprises independent innovation, strengthen quality control, improve the core competitiveness in order to ultimately achieve domestic crusher industry breakthroughs.

On the one hand , with the country's economic strength in recent years, the continuous improvement of the developed countries continued to narrow the gap between the level of technology and energy level . But at the same time is also facing fierce competition in the market , plus the use of leading edge technology abroad and market share pressure brought greatly stimulated

Crusher industry transformation and upgrading of the urgent tasks , such as accelerating the crusher structured within the industry , occupation of the international scientific and technological innovation high ground, grasp the strategic emerging industries the right to Linear vibrating screen speak , conscious use of technology to improve product performance Hongxing , innovative R & D to achieve new breakthroughs and so on.

On the other hand , the state directly or indirectly through policy guidance of the crusher industry paradigm shift . Promote the real economy, promote equipment manufacturing innovation , good atmosphere , and further build support equipment manufacturing innovation policy system, in perfect policy system support

Blessing, increasing investment in science and technology to strengthen the line pipe industry with reasonable docking crusher industry , reducing the risk of industrial innovation for the crushing machine industry independent innovation and development to provide a conducive space .

The external pressure and internal boot dual stimulation , crusher industry innovation and development will achieve new breakthroughs. Crusher industry has been excellence , and actively introduce first-class technical level , focusing on the development and production of independent innovation , quality and efficient use of generations jaw crusher , cone

Crusher, vibrating feeder, crusher, mobile crushing plant and other equipment, demonstrated the strength of the crusher industry ; while the continuous improvement of production technology innovation, excellent brand casting, crusher industry in the future will lead the innovation and development of the road .

2013年9月4日星期三

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.

Several small way Sand Wenchangaochan

Production line in the sand , Sand is an indispensable mining equipment , but it is currently the best gravel type of machine , sand making machine is widely used in a variety

of rock, abrasives, refractories , Dry vibrating screen cement clinker, quartz stone , iron ore, concrete aggregate and other hard, brittle materials

In the debris , fine ( sand system ) . For construction sand , gravel roads gifted as appropriate , how the benefits of progress Sand , how to play the most powerful features

make it ?

Increase production of several common methods :

1 , Sand must do more investigation before purchase , choose a good manufacturer is the most important , not only quality and security, as well as all aspects of service are

assured , do not at immediate cheaper to buy poor quality system sand , so that ultimately suffer the greatest loss Dewatering screen yourself.

2 , regular inspection and repair, if any undesirable phenomenon , early settlement , as well as in sand making production process, must make efficiency is maximized.

3 , sand production line , the entire system boot sequence: → Discharge → crusher feed shutdown and boot sequence in reverse order .

4, to arrange professional trained staff for proper manipulation of the manipulation , Sand avoid breakage .

5 , sand , crusher each work group , add the appropriate amount of grease.

Hongxing Bridge sand production line more efficient , lower cost , you can put all kinds of rocks , gravel , river gravel echoing various size of the building is made of sand ,

sandy cone crusher uniform particle size, high compressive strength . With a stable and reliable operation , large crushing ratio , uniform particle size , structure,

Simple, reliable , easy maintenance, low operating cost , long life and other characteristics.

2013年9月3日星期二

Stainless steel chain plate has a different name for what

Press the popular name: stainless steel chain plate , conveyor plates, metal conveyor plate , stainless steel conveyor plate , metal conveyor chain plate, stainless steel drive

chain plate .

Stainless steel chain plate shape plate feeder into : Punching chain plate, not punching chain plate , raised chain plates, Nagasaki brand chain plate .

By purpose : stainless steel chain plates are widely used in glass industry , food processing industry , dehydrated vegetables , frozen food and other products transported .

Material : carbon steel , 1cr13 stainless steel, 201 stainless steel , 304 stainless steel , 316 stainless steel .

By Shape : Stainless steel chain plates, punching stainless steel chain plate

The use of stainless steel chain plate Belt feeder installation troubleshooting method :

1 , such as the chain plates appear Paopian partial phenomenon , then adjust the tension of the driven shaft end of the shaft , should be gradually adjusted , remember to adjust

quickly , resulting in network with edges scratched .

2, such as chain plates chattering occurs , you should check the transport frame and roller conveyor tunnel turn refused without corrosion phenomena individually adjusted.

3 , chain drive type chain plate chain as a transition , running instability, both ends of the drive shaft sprocket should check whether the synchronization tooth tip for

excessive wear .

Jet mill working principle and application

Is the use of the material in a jet mill under the action of high-speed airflow , made ​​great momentum , the material in the grinding chamber is formed between the particles in

high-speed collision , violent friction , and high-speed airflow shearing action on the material , so as to achieve the purpose of crushing , it will be processed into raw

materials

A fine powder (<10μm). The almost universal use of techniques all fine processing industries , such as chemical, pharmaceutical, food, plastics, mining, metals information,

etc. , in many specific areas occupy a special position of the powder .

Currently on the use of jet mill industrial importance are the following types: flat jet mill , jet fluidized bed jet mill , jet mill circulating tube for jet jet mill , target

type jet mill . Which flat jet mill , jet fluidized bed jet mill , jet mill circulating pipe transport

With the more common , now it works to make a simple elaborated

1, the flat jet mill

As the grinding pressure of kinetic energy into the crushing chamber airflow outside airflow deployment package as a gas regulator station , the airflow through the Laval nozzle

into a supersonic jet deceleration after smashing into the grinding chamber , while the material imported scriptures Venturi nozzle reducer mill grinding chamber synchronize

crushed. Because Lava

Seoul nozzle and the grinding chamber installed at an acute angle , so that the high-speed flow in the grinding chamber with radioactive material to make recycling plant

stationary , fixed between the particles and the particles and the target plate wall of mutual shock, impact , friction and grinding . Fine particles in the air flow to the

heart center , driven by import grinder

Outlet pipe into the cyclone to collect , meal thrown in the action of centripetal force to crush looping stationary peripheral wall cavity and inherit crushed.

2 , jet fluidized bed jet mill

Material through the screw apron feeder into the crushing cavity, the absolute number of spray nozzles is set to export high-speed airflow impact energy, and the rapid expansion of

air flow was generated by boiling fluidized suspension collision , friction of the material for grinding . Thickness of the mixed powder in the negative pressure driven flow

through the top design

Turbine installation position classification , powder forced through graded installation by cyclone collector and baghouse collector , meal by gravity and high-speed rotation of

the centripetal force generated graded installation Shuaixiang return grinding chamber walls and settling inheritance crushed. i4A China feeder breaker Industry Information Network -

based

Feed, livestock serve

3, circular tube jet mill

Raw materials by the venturi nozzle participate grinding chamber , by a group of low- flow spray nozzle into different diameters varying curvature racetrack-shaped loop tube

grinding chamber , so that each particle deceleration shock, impact , friction and grinding . Meanwhile cyclone also brought along the pipe was crushed particles up into the

grading area, in the sub-

Field -level district under the action of centripetal dense material flow diversion, fine particles in the inner inertia classifier by louvered discharged after grading . Coarse

particles in the outer loop along the downstream pipe return inherited crushed .

However, currently the most widely used within the industry jet fluidized bed jet mill , since the crush model designed nozzles in parallel along the inner wall of the grinding

chamber , arranged symmetrically formed only in the range of three-dimensional on the radio , so the material can only be crushed within the approximate size of a pulverized

solid , which

Will lead to the following shortcomings:

( 1 ) Once the material falling into the grinding chamber at the bottom of coarse material collecting vessel , enters the crushing blind , unable to inherit crushed ;

( 2 ) limited by the nozzle at the bottom of the grinding chamber coarse material in a fluidized state collector blind , material non- fluidized state , you can not inherit

crushed ;

( 3 ) crushing chamber crushing zone restrictions incurred by small size , making the jet mill reduced probability .

Above the needle on the many problems , many research institutes, production companies make a lot of improvements , but also for a large number of patents. Wherein the three-

dimensional arrangement of the nozzle effects the most ideal method , which expand the crushing area , increases the friction material probability of collisions between

particles . Be

Joint flat with fluidized bed made ​​of a new equipment , according to the performance test data , to the extent of similar products in the same product and the size of the

premise, yield was significantly higher than similar products.

2013年9月2日星期一

Measures shaker noise source

Coal is a major shaker Mobile crushing plant tool. Due to its own characteristics determines the normal operation must be achieved by vibrating sieve , but the vibration is the root cause

of noise , and high sound level , the sound source are many and complex . This research adopted a multi- point multi-

The simultaneous measurement of vibration and noise , and then recorded to tape drive vibration and noise signal spectrum analyzer via analysis and coherence analysis . Through

the plate, side plates , bearings and vibration exciter on the screen such as a spring steel used in the analysis of the main noise sources , noise proved shaker

Acoustic test results are reliable , the main noise source is the right to determine , for the CPP provides a theoretical basis for noise control .

They have made a noise reduction measures are as follows : Tightening shaker all the parts, especially the need for frequent replacement of the sieve, to avoid the loosening of

individual components of the additional vibration ; punching steel sieve will replace the elastic modulus small , low noise impact or polyurethane sieve

Rubber sieve ; side in the China Coal Ranbow Mortar Mixer Machine box , the feed to the discharge port, discharge port and splice rubber plate affixed inside the chassis , which can effectively suppress the

side panel high frequency vibration , reducing radiated noise ; using flexible spokes gears instead of steel gears , i.e. the gear plate of the rubber elastic body spoke pass

Delivery torque absorbing gear meshing , the vibration caused by gnawing ; replaced with a rubber spring steel spring , in order to reduce the impact ; in vitro installation

exciter soft insulation cover; the bearings to be damped between the inner and outer , the bearing rolling elements can be made into a hollow body or rolling

Rolling the hollow interior adding damping material, which can reduce the vibration of the bearing and lower bearing noise .

Domestic mining new opportunities for washing equipment

    With the recent metallurgical and mining machinery industry, the rapid development of the market as well as national energy-saving , environmental protection , energy demand

grows, the high-tech washing oscillating screen will usher in the spring.
   
    Mine washing equipment for industrial raw materials and energy production of important equipment , its efficiency will become an important resource conservation and energy

sectors . With the large number of sieving machine small metallurgy, small coal mines , cement enterprises were shut down, a new large-scale processing plant , a large coal preparation plant

and a large cement plant Lu

Continued construction , which is equipped with a higher processing requirements , the urgent need to deal with large capacity, selection of high efficiency, reliable operation

of the washing equipment .
   
    It is understood that China's metallurgical and mining machinery industry in 2007 production, sales remained more than 36% of high growth, a new record high . 2007

industrial sales output value of 142.837 billion yuan , an increase of 38.47% . Main products industry grew more than 20% are in which mine design

Equipment grew 21.25 percent , cement equipment, an increase of 51.67% .
   
    " National Economic and Social Development Five-Year Plan" has been clearly put forward to develop influential major technical equipment , including large-scale processing

equipment . Automated washing equipment , large-scale and energy efficient technology has become washing equipment manufacturing enterprises in the future research

The key topics .
   
    Washing equipment includes: sand washing machine ( sand washing machine ) , sand making equipment such as sand , sand washing equipment washing equipment : the use of

advanced technology, combined with the actual situation of sand and gravel industry developed efficient sand washing equipment , sand washing machine wash with a high degree of

reasonable structure, large output , sand washing process

In less loss of sand , especially its transmission parts are water and sand isolated, so the failure rate is much lower than the commonly used sand washing machine , sand

washing is the best choice for upgrading the industry .

2013年9月1日星期日

Stepless adjustable rapper advance in this field layout is conducive to market share

The overall level of mining machinery in China with the international advanced level there are still gaps. Mining machinery manufacturing power towards the journey

electromagnetic warehouse wall rappers , opportunities and challenges. Product design is the soul of manufacturing , product structure, function , quality, cost , delivery time

And between manufacturability , vibrating sieve maintainability , scrap reprocessing and human, machine and environment relations , in principle, are determined in the product design stage .

Product innovation design capacity has become deciding the status of competition in the global primary factor .

Jaw crusher , jaw crusher and other drying equipment stepless adjustable rappers , the use of resources downstream customers more products and services is the future direction

of development of mini- warehouse coal crushing plant wall rappers .

In recent years, large -screen wall display area has been the technological content and high output efficiency pair one of the products , with common enterprise insurmountable

technical barriers, which doomed the splicing products in leading display technology development , it is also for the enterprise brought huge returns

More right to speak. Therefore , the ability to develop a mosaic wall with leading technology products, manufacturers tend to become established position in the industry in the

display area of the best signs.

Investment projects in recent years from the industry point of view, tend to offer from around the car manufacturing ( production equipment ) , use ( vehicle networking ) ,

recycling ( scrap equipment ) during a full range of equipment and services miniature silo wall rappers . Gold formwork CEO, International Association Secretary-General Luo

Baihui mold

That the medium and long term car networking is the main direction of China's future development , advance in this field layout is conducive to market share , but also

beneficial to the automotive remanufacturing process in the future to share revenue . And long-term in order to be effective compared to vehicle networking , automotive

remanufacturing brings scrap set

Equipment and related services may be faster , but this requires further policy support . Wind power equipment will bottom out, real estate will exit. In the past two years,

wind power machine capacity can grow too fast, but the problem exists grid plus five power manufacturers to enter the wind power machine tender price is not

Broken down, so that the negotiating capacity of wind power components declined , increased competition in the industry , gross margin decreased gradually bottom out this year,

will likely start .

Trough feeder rate of price increase

2010 Chinese labor costs increased prices, China 's factories focus to the domestic market , expanding domestic demand. China is no longer a subcontractor 's paradise. As a

supplement for Chinese orders , textile and garment buyers who will be part of European orders to Bangladesh, Pakistan , Laos and

Indonesia and other countries , but these Circular vibrating screen countries production capacity and quality are not the same breath with China , its role can not be replaced by Chinese Moreover, some

countries have not yet material chute feeder , such as Bangladesh would be no cotton. Short distance away from the Maghreb five European countries ( Libya, A

Algeria , Mauritania , Morocco and Tunisia ) , although its Sand screening machine short delivery time, quality and security, quick reaction, understand fashion , but the current regional political

instability, with little or no ability to undertake the production of textile upstream trough feeders. Arab countries to make contract changes

People turn to Turkey, the country's textile industry integrity is the Employer inroads into the market feeder, but there is the danger of market saturation . The area is

currently promoting Eastern European countries, which are able to recover part of the Mediterranean and other countries orders.

Beginning of raw materials , labor costs and other factors , driven branded apparel market in general price increase of 10% to 15% of food conveyor. Sports apparel category

explicitly disclosed the price increase . Xtep and Peak in its third quarter of 2011 ordering the data , said this year

Apparel products were price increases of 10% and 5 % to 10% ; Ning ordering the second quarter of 2011 will increase by approximately 8% of clothing .

Garment factory price rose more than the retail price rose. 2011 China ( Jinan ) International Textile and Apparel Fair, a clothing company official address him wrong : " In

fact, ex-factory prices of our products is less than 10% of the circulation too many questions ." China Textile Industry

Association Deputy Secretary General Yang Jun said that China's textile and apparel has become the first choice of cross-border purchases , but only domestic enterprises occupy

the industrial chain of manufacturing this link.

According to the China Textile Industry Association recently released a survey of 29 respondents said that orders all full garment enterprises , individual enterprises booked 6

to July . For the pressure of rising raw materials and labor , 35% of the interviewed companies that have a greater impact, but

Can withstand 64 % of companies said little effect on anti-blocking devices .

Insiders analyze why this happens . Mainly due to : soaring price of cotton last year , up to 33,000 yuan per ton of food conveyor. Later this year, the purchase price has

dropped slightly, the highest slid four or five percent . However, many textile enterprises are mostly last year or the first half of this year

Years of buying high-priced cotton, inventory digestion , price transmission takes time , plus labor costs and a substantial increase in prices of raw materials , intermediate

circulation costs, cotton clothing prices fell still can not stop the pace .


Even brand clothing prices, but the day of downstream garment processing enterprises is still very sad, because the magnitude of price increases , and can not fully digest the

rising cost of raw materials and labor , because they, processing enterprises, processing of the brand 's price increase is negligible.

High raw material prices , RMB appreciation constantly , so that clothing companies are now very tough day . Product price increases and cost far less than the rise in corporate

profits not improved , but has become increasingly thin feeder . Orders worry worry about profits , China's labor-intensive

Garment export enterprises are facing phoenix and painful process.

2011 , by the raw material and labor costs rise, prices of various brands of clothing have . And price increases of nearly 20 %, 30% . Clothing prices for a time become a matter

of concern .