2013年9月28日星期六

Removing correct bearing shaker

In the course of using the shaker , we always because of this or that reason , you need to remove vibrating screen bearings, false

Such as vibrating screen bearings demolition is incorrect, could cause damage within the bearing , contaminants may enter the shaft

Order . So on the vibrating screen bearings stone feeding machine demolition process, we should pay attention to the following three points :
( 1 ) shaker tapered bore bearing removal removal more compact adapter sleeve bearings, fastening on the bearing stopper

Supporting the inner ring, the nut back several times, using the pads with a hammer and beat demolished ;
( 2 ) shaker cylindrical bore bearing removal vibrating screen manufacturers by pressure mechanical pull , so that the inner ring to withstand pulling force , is the easiest inner demolition

Method ;
( 3 ) Removal of external shaker
     Removing the interference fit of the outer ring , the circumference of the housing in advance several outer extrusion screw is provided with a screw , while the

Tighten the screw equal , while removal. These screw holes on the usual blind plug , shaker tapered roller bearings and other sub-

From the type of bearing , the housing block set shoulders several incisions , the use of pads, with presses gently tapping the demolition or removal

Vibrating sieve and screen box frame broken explore

In the process of using vibrating screen , vibrating sieve sieve sieve frame and box beams fracture is a relatively common problem , then what
What causes vibrating sieve sieve sieve frame and box beams break it ? We vibrating sieve sieve boxes and boxes of broken bits
Set to start, will cause analysis for the following aspects:
First , vibration sieve vibrator on both sides of the vertical support plate is too short causes. When the time is too short mining screen riser , vibrator screen frame
Force above the surface will be more concentrated , resulting in vibration sieve and screen box frame breakage , for this situation , we should
Vibration sieve riser extended in order to play to improve the screen frame often fracture failures.
Second , vibration sieve sieve box frame with broken crusher machine plates with thickness vibrating sieve box there is a certain relationship, if vibrating sieve box
Thick enough , it is most likely caused by vibrating sieve and screen box frame broken, so for this situation, we can change the
As with thick high quality steel sieve shaker box .
Third , vibration sieve shaker and screen box connecting bolts discontinuity , causing vibration sieve sieve box frame with broken needles
On this situation, we should adjust the vibration sieve shaker position, changing the force , so that even by force .
Fourth, selection and beams shaker force strength is not enough.
Fifth , each shaker inconsistent internal stress between the beams .
These five points are based on vibrating sieve sieve box frame and determine the location of fracture vibration sieve boxes, screen frame crossbeam rupture causes.

2013年9月26日星期四

Trommel industry

      Main contents: trommel international development industry overview , industry development environment, market coal vibrating screen analysis ( market size, market structure, market special

    Points, etc. ) , the production of ( total production , supply and demand balance, etc. ) , competitive analysis ( industry concentration, the competitive landscape,

competitive group , and other competitive factors

    ) , Price analysis, user analysis, analysis of alternatives and complementary products , industry leading driver of industry channel analysis, industry profitability,

    Industry growth , industry China Vibrating Screen solvency , industry operating capacity , drum sieve analysis of the industry key enterprises , sub-sector analysis, regional market analysis,

industry

    Risk analysis, industry forecast and related operations , such as investment advice .
        Analysis of objective, impartial , systematic, true and accurate reflection of our screening machine and drum machines and other related trommel drum sieve sand industry

market development status and future trends , is the enterprise to conduct market research work an indispensable reference , but also

As a financial institution for credit analysis , securities analysis, investment analysis and other research work of reference.
         An above-scale trommel raw material suppliers , channel vendors, competitors contacts. Including : corporate units code, legal entity name

    Said the legal representative ( or responsible person ) , administrative division code , address, area code , telephone number, fax number , zip code, electrical

    Sub- mail , website , business registration number , the preparation of the registration number, registration type , type of institution ......
        Second, large-scale corporate credit trommel competitive position and financial data. The main contents include : Main business activity, trade code, from the end of the

year

    Industry the number of personnel , the total annual operating revenue , total assets , total industrial output value , industrial sales output value , industrial added value

, current assets , fixed

    Total fixed assets , the main business income , the main business costs, business taxes and surcharges , other operating income and other operating income , financial

expenses

    Use , operating profit , investment income, operating income , gross profit , total loss , total profits and taxes , income tax payable , advertising, research and

development

    Fees, cash inflow generated from operating activities , cash flow from operating activities , investing activities Cash flows from investing activities Cash

    Outflow from financing activities Cash inflow Cash outflow from financing activities

Bucket elevator hopper belt slippage

( 1 ) bucket machine is to use the hopper with the first round of the friction torque between the drive shaft for elevator materials , unpredictable enough hopper belt tension

will cause the hopper with skid. At this time , you should immediately shut down, adjust the belt tensioning device to tighten the hopper . If you can not make the hopper belt

tensioning device is fully tensioned , said

Ming tensioning device trip is too coal production line short, should be re- adjusted .
The correct solution is : untie bucket elevator hopper with coupling to the bottom tensioning device on the wheel adjusted to the highest position , the hopper with bucket

elevator into the hoist head through the first round and bottom round , and both connected, the hopper with bucket elevator in the tensioner without sheets

Tight state. Then the tensioning stone feeding machine device is fully tensioned. At this point tensioning device untapped tension adjustment screw stroke of not less than 50% of the whole trip .
( 2 ) bucket elevator overload , resistance torque increases, resulting in the hopper with skid. You should reduce the amount of material fed and seeks uniform feeding . If you

reduce the feed rate , still not improve skid, sit inside the machine may be too much or material accumulation mentor material hopper are stuck , you should stop to check

, Troubleshooting.
( 3 ) bucket elevator hopper nose wheel shaft and the inner surface is too smooth head with round shafts and hopper band surface is too smooth , so that the friction between

them decreases, resulting in the hopper with skid. At this time, the hopper with the shaft and the inner surface coated with a layer of adhesive to increase the friction.
( 4 ) bucket elevator nose wheel and wheel bearing rotation not working head end and a bottom wheel bearing wheel rotation ineffective, moment of resistance increases, causing

the hopper with skid. Then washable refueling or replace bearings.

2013年9月25日星期三

Vibration platform should be noted that in the course of events

Vibration platform in the application process tap major role to play in the long-term use should be careful to check the vibration motor mounting screws are loose in the long

process of using the vibrating Circular vibrating screen body is broken , in order to avoid breaking the vibrating body , adopted a new kind of riveting , long look at the

The use of practices achieved certain results
 Vibration sieve in the filtration Dry vibrating screen industry needs to pay attention
Vibration sieve in the filtration industry is also widely used , but the actual operation, there are many problems , and sometimes the material according to the filter mesh

sieve has a great relationship, and not a one-time feeding too much , it is prone to breakage sieve , affect the production , the most effective method is: 1 in cast

Delivery boring case, the power to open , screen machine operation , 2: the case of delivery of materials to be gradual.

Vibration sieve matters noted during transport

Vibration sieve again before shipment need to do is
1: Check the accessories are complete
2 : Check the screws are sand vibrating screen imprisoned
3: Check the transport support is secured , especially this one , because a lot of time in transit , since transportation support will cause damage during transport, sport

springs with crane swinging back and stone screening machine forth , there will be a spring crooked , broken, lost , etc. phenomenon . Affect the normal use
4: Upon arrival, the first look at the transport support is intact. Then twist off the screw , remove the support, check the parts , springs , power use

2013年9月24日星期二

Vibration motor power calculation

Vibration motor power calculation :
Motor power , should be based on the required power production machinery to choose, as the motor at nominal load . Selection coal vibrating screen should pay attention to the following points:
① If the motor power selected too small . There will be " small horse cart " phenomenon , resulting in long-term motor overload . Insulate due to heat damage. Even the motor is

burned.
② If the motor power selected too China Vibrating Screen large . There will be " big horse car " phenomenon. The output mechanical power can not be fully utilized , power factor and efficiency is not

high , not only for users and grid disadvantage. But can also cause energy waste .
To correctly select the motor power , you must go through the following calculation or comparison:
P = F * V / 1000 (P = computing power KW, F = desired tension N, working machine line speed M / S)
For constant load continuous work, can be calculated as the required motor power :
P1 (kw): P = P/n1n2
Where n1 is the production efficiency of the machine ; n2 efficiency of the motor , the transmission efficiency .
Power obtained by the above formula P1, is not necessarily the same power with the product . Therefore . The rated power of the motor selected to be equal to or slightly greater

than the calculated power .
In addition . The most commonly used is the analogy to select the motor power . The so-called analogy . With similar production machinery is used to compare the motor power .
Specifically: the understanding of the unit or other units of similar nearby production machinery using multiple high-power motor , and then use the power of the motor is

similar to trial . The purpose is to verify that the selected test motor and production machinery match.

Shaker vibration motor excitation force how to adjust

Use the following steps to adjust
First, the horizontal vibration motor:
1 , relaxation guard screws , remove both ends of the shield.
2 , the exciting force is less than MV50-2, MV50-4, MV50-6, MV30-8 vibration motor ( not included four specifications ) , the outer eccentric block is adjustable , surface

marked with the largest percentage of the coal production line exciting force ruler , inner eccentric block is a fixed block , use the fastening bolts are pressed on the motor shaft

. Both end surfaces of the shaft engraved baseline. Loosen the sides of the outer eccentric bolts on both sides of the outer eccentric rotation in the same direction , so that

the shaft aligned with engraved lines stone feeding machine on the outer eccentric ruler engraved lines excitation force , to the required excitation force , tighten the eccentric block bolts ,

fitted with protective cover.
3, the centrifugal force is greater than or equal to MV50-2, MV50-4, MV50-6, MV30-8 of the vibration motor ( including the four specifications ) , the eccentric block is a fixed

block , keyed to the shaft , can not rotate . Adjustable eccentric block within the block , with the outer surface marked with the largest percentage of the standard excitation

force

Feet , using fastening bolts clamping the motor shaft. Loosen the sides of the inner eccentric bolts on both sides of the inner eccentric rotation in the same direction , so

that the inner eccentric excitation force on the outer eccentric ruler engraved lines aligned slit on the block , to the required excitation force , tighten the eccentric bolts

, fitted with anti-

Shield.
Note: Except for special applications , the vibration of the motor shaft at both ends eccentric position must correspond to both ends of the eccentric set percentage must be

equal , otherwise the vibration motor generates a huge mistake to centrifugal force , the vibration of the motor mechanical damage .
Second, the vertical vibration motor :
1, the excitation force adjustment: Remove the additional block bolts , by increasing or decreasing the number of additional blocks to adjust the excitation force .
2 , the upper and lower eccentric angle adjustment: the eccentric block is a fixed block , the next block is an adjustable eccentric block , using the fastening bolts are

pressed against the motor shaft. Engraved on the surface of the shaft ends of the baseline , with the outer surface under eccentric rotation angle marked ruler , rotary

eccentric bolts Panasonic

, Turn down the eccentric , so that the next point on the eccentric ruler engraved lines aligned with the reference axis engraved lines , adjusted to the desired angle , tighten

the lower eccentric bolts ; For adjusting the eccentric angle , also according to the appropriate method adjustment.
Third, connect the power :
Vibration motor vibration of the cable due to bear , so should be used in heavy-duty four -core cable , cable outlet is not allowed near sharp bends , to have a 8-9 times

greater than the outer diameter of the cable bend radius , and then the cable is not fixed to the stationary moving the machine or the frame . The distance is about

0.6 m to 0.9 m . In the fixed cable clamp Department should pad with soft insulating material to prevent friction damage to the cable. Four core cable ground wire , one end of

the junction box is connected to the grounding screw , the other end must be grounded . Small models vibration motor, chassis no junction box,

Use heavy-duty three -core cable directly from the inside of the motor wiring. Near the foot of the motor is equipped with grounding screw , use must be grounded.
Note: The vibration motor cable outlet for the wearing parts, often due to vibration friction damage, leading to motor phase operation, damage to the motor . Users should always

check the cable position should be replaced if worn the same type cable.

2013年9月23日星期一

Accessories vibration sieve analysis

   Vibration sieve shaker is the main equipment, the application of such a wide range of industries and areas , welcomed by everyone . Here do some introduction .
1 , punching board network Material:
   There are carbon steel, stainless steel ,plate feeder  copper, nickel plate , etc.
   Characteristics: smooth surface, smooth, beautiful , durable
   Specifications: coil 1X20CM, flat 1X2M compiled stamping
   Uses industry sectors : mining, pharmaceutical , food selection, indoor noise, silencers and grain storage ventilation, mechanical protection welded wire mesh , galvanized

mesh
2, stainless steel material:
   There are 302,304,304 L , etc.,
   Weaving: plain weave, twill weave , five Belt feeder mechanized weaving, bamboo flower weaving, "people" herringbone weave wait .
   Characteristics: acid, alkali, high temperature, pulling force and wearability .
   Uses: acid , alkali conditions screening and filtering , the oil industry make mud mesh, chemical fiber industry screen filter
    Advantages: good effect , beautiful, construction convenient , economical and practical
3 , steel mesh material:
   Mainly made ​​of high quality steel braided stamping, into small steel mesh , expanded metal mesh , stainless steel mesh .
   Features: Durable , elegant appearance
   Purpose: Speaker , filter, buildings, bridges, and various mechanical pedal platform protection safety equipment .
   Vibration sieve selection of accessories at the time to be very careful, because every little part is very important . If one with the bad, will have a joint role.

How effective use of vibrating machinery industry seo

Overall, the vibrating station construction machinery industry categories to be clear, in the end it is a profit -based , or to products based, or on the customer experience ,

and it added service model , establishment of clear positioning must be now most of the vibration construction machinery industry website

Basically, most of the enterprises is apron feeder to serve our customers are heavy-duty business, business development , marketing, nature is inseparable from the network , the specific

practice also need to constantly adhere to the spirit .
    Vibrating machinery industry produced products , is nothing more than hot products , this can be imagined , the profit is relatively good, with a majority of companies are

engaged in bidding way to do it , but that feeder breaker kind of investment is also a marketing model great , Then from corporate earnings

Lee pattern analysis, many target customers through search popular word , and then go customer service consulting firm price or find some relevant information flow is actually

more bids are competitors to observe your site is currently the case , and if so , then the auction , our investment will enter

Make ends meet , then do not take the auction model of marketing , it certainly will use SEO internet marketing, but through SEO optimization techniques , indeed conversion rate

will be greatly compromised , but on the precise positioning of the target customers, is different , the precise positioning of the search , most of the face

Who is a professional procurement , which is our targeted customers, then there are professional sourcing who not only do not waste too much time on our corporate website sales

and service will take into account his purchase plan, only such a website that optimization is our

Corporate website advertised product , most meet the procurement needs of people , will greatly contribute to the final order , to bring huge profits.

2013年9月22日星期日

Motor fault diagnosis and maintenance methods

When the motor is running or fault , through seeing, hearing , smell , touch four ways to timely prevention and troubleshooting , to ensure the safe operation of the motor .
First, look at
Observe the motor is running without coal crushing plant exception, its mainly for the following situations.
1 stator winding is shorted, the motor may see smoke .
(2) severe motor overload or missing running , the speed will slow down and have a heavier "buzzing" sound .
3 motor running, but suddenly stopped , you will see at the wiring loose sparkle ; blown fuse or some parts are stuck and so on.
(4) If severe vibration motor , it may be stuck or drive motor fixed bad , foot bolts loosening .
5 If the motor contacts and connections coal production line within a discoloration, burn marks and smoke trails , etc. , then there may be local overheating , conductor connection is bad or winding

burned and so on.
Second, listen
Normal operation of the motor should be issued a uniform and lighter "buzzing" sound , no noise , and special sounds. If the noises too , including electromagnetic noise ,

bearing noise , ventilation noise, mechanical friction sound , etc. , may be threatened failure or malfunction of the phenomenon .
1 For electromagnetic noise , if the motor issue fluctuated and heavy sound , then there may be several reasons .
( A ) non-uniform air gap between the stator and the rotor , then the sound fluctuated between low and high and low time constant, which is bearing wear so that the stator and

rotor misalignment due.
( 2 ) three-phase current imbalance . This is the three-phase windings of the misuse ground , short circuit or poor contact and other reasons, if the sound is very dull

indicates severe motor overload or missing running

Vibration sieve how to improve network optimization

1 , vibration sieve network optimization optimization must often increase the amount of information posted .
2 , to reduce unnecessary loss Screening machine of flow .
3, with optimization software to be optimized .
 Vibration sieve sieve damage solution
       Vibration sieve mesh with the bad there are many reasons for this, such as vibration sieve mesh quality, banana screen material properties.

2013年9月21日星期六

Feeder Instructions

Motor feeder is widely used in mining , metallurgy, coal, building materials , chemicals, electricity , food and other high frequency screen industries, for the massive, granular and powdered

materials from storage silos or other material storage devices uniform, continuous or quantitatively to give to the affected devices , adapted to the automatic batching ,

Quantitative packaging and automatic control . The product is small , low noise , light weight, low power consumption, easy vibrating screen classifier installation and maintenance .
Motor feeder main features:
    Feeder during use , you can adjust the exciting force to change and control the flow , and thus convenient adjustment , flow stability , low noise, low power consumption, no

red material phenomenon , but the machine has a light weight , small size , maintenance convenient features, such as the use of closed structure,

Prevent dust spills and environmental pollution.

Vibration motor points to note

First, check the appearance of cracks vibration motor , the fastening screws and parts are complete, thinking about fixing the situation is good.
Second, check the vibrating motor drive Sand screening machine mechanism work is reliable.
Three , according to the nameplate data such as voltage, power , frequency , couplings , speed, etc. and power , load compare match.
Four , new or long-term disabled motor windings should be checked prior to use and the winding insulation resistance dewatering screen to ground . Usually below 500V motor with 500V insulation

resistance meter ; pair of 500-1000V 1000V insulation resistance of the motor with a table ; motor used on more than 1000V 2500V insulation resistance meter . Absolutely

Each kV operating voltage insulation resistance shall not be less than 1MΩ, and shall state the motor cooling measurements.
Fifth, check the ventilation of the vibration motor and bearing lubrication are normal.
Six , pulled vibration motor shaft, inspect the rotor can rotate freely rotate without noises .
Seven , check the situation vibration motor brush assembly and lift the brush mechanism is flexible, move the brush handle position is correct.
Eight , check the vibrating motor grounding device is reliable .

2013年9月17日星期二

What are the advantages trommel

Trommel , mainly through the sieve barrel rolling , rolling along with the material in the interior , the thickness of the material particles to separate . Its principles and

trommel Screening machine drum machines and the principle is basically the same, but differ from it is called .
The main advantage is that the drum : stable , low noise, but also easy to plug the sieve ; due to its simple structure, it is relatively easy to repair ; qualities because it

is the use of mesh , so vibrating screen classifier efficiency is relatively high, life is relatively long ; sieve drum is also more flexible , closed up in favor collecting ; most importantly,

time investment is relatively small. Effectively reducing production costs .

How to maintain and operate trommel

The most common is the cage drum belt weigh feeder , which is characterized by reliable operation, low maintenance , then we should pay attention to what it used ?
First, we use, first open the drum , let it roll , turn after feeding equipment , we want to stop when you sent me the operation , that is , to stop feeding equipment, and other

materials banana screen has been completed, and then shut off trommel .
Secondly, we have to buy to the device, to conduct various parts of the inspection , if found to have loose parts , we should promptly imprisoned . Later in the course should be

regularly inspected and maintained.
Finally, there is our usual maintenance , and periodic lubrication bearings and other related sites , plus one to two months grease ( do not add too much ) , there is the

bearings should be cleaned at least once a year .

2013年9月16日星期一

What types of trommel advantages and disadvantages


Sieve -type project cage cantilever trommel screen shaker shaker
Coal adaptability to adapt to accommodate certain types of coal bell only water and free of impurities coal bell only accommodate a certain moisture and free of impurities Semi-mobile crushing plant

bell
Into the coal flexible way , according to the actual situation only suitable belt design , funnel , into the coal port size is fixed only suitable belt , funnel, into the coal

port size fixed
Rotational vibration vibration screening methods
Screening efficiency up to 95 % to 10 % -70% , depending on the coal moisture case may be 10% -80% , depending on the situation by screening coal moisture reaches 100% MCR,

unrestricted (10% -80%) MCR, as the case may be coal moisture content (10% -80%) MCR, depending on water conditions laid down coal feed size 6-30mm, can be adjusted due to mesh

fixation, Dewatering screen lower particle size can be adjusted and there is the phenomenon of excessive cutting granularity guarantee is not good, there is abnormally large design flexibility

than other sieve size limit type is small, easy to be large-scale large-scale size , large-scale screening efficiency by limiting the size screening efficiency and cantilever

material and other restrictions
Energy consumption, is the other 50% of large sieve type larger
Noise isolation cover with seal , low noise high
Equipment life Long Short Short
Sieve body Yes No No
Good working environment ( with sealing caging , no coal dust and coal splashing ) Poor ( No Seal cage with pulverized coal dust and splashing ) Poor ( No Seal cage with coal

dust and coal spatter )
Labor intensity ( no need to clean up the area of ​​screening and clean coal ) Large ( equipment running for a long time to clean up the area of ​​screening and clean coal ) Large (

equipment running for a long time to clean up the area of ​​screening and clean coal ) maintenance and consumables small amount of maintenance parts , wearing parts just replace

the bearings only maintenance of large , wearing parts . Screens and vibrating motor must be replaced within the short term maintenance of large , wearing parts . Sieve and

vibration motor must be replaced within a short term guarantee on the value of the coal boiler can not guarantee 100% can not be fully guaranteed.

The working principle of belt conveyor

Belt conveyor consists of two end rollers and tight closure on conveyor components. Driven conveyor rollers rotating drum called a drive ( drive roller ) ; Another is to change

only the direction of movement of the vibrating screen classifier conveyor drum called a bend pulley . Drive roller driven by a motor through a speed reducer , the drive roller and the conveyor belt rely

friction drag between . Drive rollers coal crusher are generally installed in the discharge end , to increase the traction , is conducive drag . Material from the feed end of the feeding ,

fell rotating conveyor belt , relying on friction drive conveyor belt transporting bags discharge end unloading.

2013年9月15日星期日

How to choose the pulp shaker

Each workshop has a paper mill white water outfall drain in this place a tiny vibrating screening machines filter screen , not just a simple operation , recycled paper fibers

also facilitate the collection ,vibrating screen manufacturers because of their size small also easy maintenance and cleaning. According to each workshop

The emissions can choose different specifications of vibration screening machine filter screen , many paper companies mostly use 800 Vibrating screen , 1000 vibrating screening

machines,Sand screening machine ranging from 1200 , this model is just a shaker motor power 0.55 KW, 1.1KW, operational costs can be

Is negligible , do not say the cost of sewage treatment , only recycled paper fiber has been able to achieve a good profit .
         Vibration screening machine is not recommended to place the total outfall , first because of the large amount of sewage equipment to choose large type , and the other

because the environment is bad vibration screening machine equipment inconvenience management and operations.

Reduce vibration motor heat

General Motors by fans to heat, and vibration motor but often require manual maintenance cooling . Ordinary fan motor work along the casing above the wind kept hair heatsink ,

cooling rapidly while paying off the dust in China Vibrating Screen addition to the above , so that ordinary motor temperature generated by the work

Ensure normal .
Vibration motor without fan unit is on its own heat . However, the working environment of dust vibration motor is relatively large , long-term and more likely to accumulate in

the surface of the motor will affect the sand vibrating screen cooling effect , can cause overheating , burn out the motor .
Preventive measures:
1 periodically clear the motor surface dust, the vibration motor has a good working environment .
2 vibration motors preferably with good ventilation when using generally not a problem in the winter , in the summer you can use fan cooling.
These two points will help customers maintain a vibration motor vibration motor, vibration motor life expectancy.

2013年9月13日星期五

Spiral vibration hoist works

Spiral vibration hoist is one of the products mature plant , spiral vibration hoist the main working principle is :
Vibrating conveyor moves through the micro- throw the material in the upwardly inclined trough mechanical transport and heat treatment processes , such mechanical and thermal

treatment simultaneously in a manner sieving machine more and more in industrial applications . Compared with the linear vibrating conveyor , screw conveyor

Conveying path is not straight , but a spiral . Under the established slope around the central axis of the spiral tower to produce the corresponding torsional vibration ; making

loads along the spiral upward. The linear vibrating conveyor , the conveyors in each point of the plane of the acceleration acting on the product

Are almost the same degree , screw Mobile crushing plant conveyor according to the magnitude of the acceleration degree of the different transport radius corresponding changes . Therefore its

operating conditions of the different diameter of the screw conveyor have a greater impact ; other words , this type of delivery of the form that is in the area to its maximum

tilt and

The minimum acceleration .

Vibration sieve problems during use

Vibration sieve used in various industries, although the vibration sieve is already a very mature product, but there will be some difficult issues , such as : vibration sieve

during normal operation , due to all China Coal Ranbow Mortar Mixer Machine the characteristics of the material , will produce different shapes various forms of the sieve clogged. Block

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 , oscillating screen wire weaving 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 screening material

particles are mostly irregular , so blocking reasons are varied .

2013年9月11日星期三

Explosion future trends vibration motor

      Proof vibration motor has now been more and more business concerns , it is mainly used in coal, oil and gas , petrochemical and chemical industries, for hazardous fuels

and powder separation , with the increasing development of society , from two aspects investigate the vibration motor in explosion

Trends in the next few years , these two weight feeder aspects are mine explosion and petrochemical systems vibration motor vibration motor explosion-proof .

    1 . Mine explosion-proof vibration motor
    ( A ) the development of high-power motor: the world's largest coal mining capacity has exceeded 1200kw, its drive motor power up to 600kW; mining area to adapt to face

conveyor has exceeded the maximum capacity of 1500kW, the driving motor power reached 725kW. Domestic

Shearer drive motor current maximum power is 400kW, belt weigh feeder scraper conveyor drive motor maximum power is 315kW.
    ( 2 ) development of 3.3kV, 6kV mine and IOkV level voltage motor : This is because the popularity of mechanized coal mining after the mining area to lengthen , causing

voltage drop increases , but also requires the use of high-power motor voltage level to improve .

    ( 3 ) development of mining two-speed motor: In order to meet mine conveyor speed starting and high-speed operation of the work requirements, foreign mining scraper

conveyors are based on the two-speed motor drive . But the current domestic ore two-speed motor power range , performance indicators and supporting sexual control switch

Energy, etc. , compared with foreign advanced level there is a certain gap.
    ( 4 ) improve the reliability of the motor Mine : Mine explosion-proof motor poor working conditions , frequent heavy duty starter motor , load changes , voltage

fluctuations, ambient temperature is high and there is some corrosion , etc. These all affect the use of motor reliability and longevity .
    ( 5 ) to accelerate mine explosion-proof motor replacement.
    ( 6 ) Uniform mine explosion-proof electrical standards.
    2 . Petrochemical explosion-proof vibration motor
    ( 1 ) increased safety and non -sparking motors demand will rise. Petrochemical system users in the use of the practice ; has recognized the development of China's increased

safety and necessity of non-sparking motors . In addition , a large 1970s bow [ in a device supporting increased safety , non-sparking

Motor has been to use the appropriate country when product substitution .
    ( 2 ) the reliability of explosion-proof motors have become increasingly concerned by the petroleum system users . Petrochemical development of increasingly large-scale

installations , continuous operation , requiring the system to achieve long- run period , less maintenance-free maintenance . Therefore, explosion-proof motor has become the key

equipment to ensure the above requirements .
    ( 3 ) proof and efficient frequency conversion motor has become an urgent requirement petrochemical users developed energy-saving products . In recent years has produced a

series YBx, YAX explosion efficient motor , into the market after a welcome addition . Explosion-proof electrical energy has two aspects: First, the development of high

efficiency electrical explosion

Machine , the second is a lot of development of various explosion-proof motor's special products , in particular, will have a huge potential for energy saving fans, pumps and

compressors motors are designed to speed motor .

    ( 4 ) the development of coastal petrochemical enterprises bring new requirements. China's coastal area will be built a number of refineries, crude oil imports are required

, while imports of crude oil with high sulfur content , corrosive severe , thus requiring explosion-proof motor to improve corrosion resistance ; additional shipping crude oil

imports are required , the storage tanks on the

Requires supporting large flow high head pump explosion-proof motor .
    ( 5 ) With the pace of development of the western region , China's western oil industry has entered a period of rapid development , where the urgent needs of the development

environment for desert dry heat -proof electrical products . With hydrogenation unit in electromechanical explosion in the use of market demand is also increasing steadily.

Sinter main structure shaker

       Shaker sinter mainly refers sintering process used in the metallurgical industry shaker , or the sintering machine between the cloth and the cooling operation. Also

called hot griddle . Because hot griddle sieve material has its individual particularity, so in use are different from other sieve, there

Note the use of strict , in order to do plate feeder these precautions Details:
   1 between the vibration source and the screen surface insulating devices must be installed ( insulated tanks or insulation board ) in order to reduce the sinter heat

radiation effect on the vibration source , ensure that the vibration source within the allowable temperature.
   (2) In order to reduce the impact of material on the Belt feeder sieve , sieve boxes by the discharge end of the feed gap of not more than 500mm, its feeding direction should be moving

in the same direction the screen surface material .
   3 funnels, ventilation hood and thermal insulation shall be fixed on the sieve , sieve vibrating with the gap between the parts can not be less than 50mm.
   4 Allow the material temperature of 500-1000 degrees Celsius, but the screen frame to allow the temperature of 300-500 degrees Celsius. Therefore, in the screen surface , and

beamed back to mine funnel wall to be added ventilation or ventilation ensure that the material was .
Sinter vibrating screen working principle and structural features:
    Sinter shaker are seat -mounted . The use of biaxial exciter , the motor is not part of the vibration from outside the trailer for the reverse two motors from synchronous

rotation , so that the sieve in a linear direction for a cyclical reciprocating motion, so as to achieve the purpose of screening . The series sieve shaker with high temperature

resistant

Material, has good heat resistance , no deformation, long life , sieve easy installation, removal easy . This series of vibrating screen using secondary vibration isolation

device can significantly reduce the equipment when working on the basis of the impact , thereby reducing the cost base . The series of beams and shaker

Screen box side panels or heat-resistant stainless steel plate , and using ring groove rivet , not only tighten better, but also greatly reduces the internal stress generated

due to welding .
Summary characteristics of sinter shaker
    1 Suitable for high temperature screening operations , the use of high efficiency
    2 whole strength, stiffness, heat distortion , long service life .
    3 sieve using precision casting , assembly and reasonable retention system screen surface , easy to maintain.
    4 secondary vibration isolation performance optimization, dynamic load transmitted foundation , low noise

2013年9月10日星期二

During screening test sieve testing needs to be done before the procedure

1, the standard test sieve to horizontal position ; make sure the power and nameplate conform to the requirements and ensure the ground ; vibrating part can not contact with

other objects ;
Ministries bolts are tightened.
2, the aperture standard sieve frame by small to large, from bottom to top to Dry vibrating screen frame stacked on the base .
3 , according to the nature of the material and the feeding amount , set on the timer run time, and then turn on the power switch, the standard test sieve began to work .
4, according to the material being tested and the appropriate criteria to determine the criteria you want to use the vibrating screen design frame .
5, the standard test sieve work stopped, unscrew the locking nut, remove the plate, carefully removed the standard screen frame .
6 , the test material was placed in the top sieve box, with a standard sieve cover, according to the standard of the total height of the screen frame height adjustment lever ,

and then
After the lock nut with plate and positioned on the standard screen frame compression ( Note : To force should be the same on both sides ) .
7 , cut off the power.

Vibration screening process in the use of coconut milk

(1) process
  broken coconut shells, water drying scraping wire grinding dry coconut mixing homogeneous separation filling ​​gland sterilization product
( Two ) operating points Description
 ( 1 ) broken coconut shells, water , scraping wire : a mature coconut washed , split along the middle section , so coconut water out, coconut water is collected and filtered

back. Coconut split into two , with a special yarn with scraping teeth scraped coconut , copra making it loose , and then put into the baking dish

Machine, controlling the temperature 70 ~ 80 ℃, drying into the Gansi with rich coconut , storage backup.
( 2 ) grinding water : the water filtered through the water , and then flows through the water heater temperature was raised to 70 ℃, the hot water tank into a 0.04% sodium

hydroxide with stirring , at coconut : water = 1:10 ( weight ratio ) will be shredded coconut and hot water stir into the mill grinding wheel . The first coconut milk

Taiwan pulp high frequency screen separator 120 mesh sieve separation , and then use the second separator 180 mesh sieve was isolated Toudao juice , coconut residue can be added to a

small amount of hot water filtration in two juice . Head Road juice, two juice mixture , pumped into the tank aside.
( 3 ) Ingredients : sugar pot with a mezzanine solution , a concentration of 50% concentrated syrup, filtered through filter spare . Open the tank outlet valve , downstream to

the mixing tank to coconut milk , vibrating screen machine constant volume after the filter net of coconut water blended with 10% , then add seasoning liquid citric acid to pH 6 to 7, and then add

Treacle 18% , 0.05% salt , 0.2% emulsifier ( 60% monoglyceride 10% + 30% sorbitan fatty acid esters of polyoxyethylene sorbitan fatty acid esters ) , adding an appropriate

amount stabilizer ( xanthan gum ) , heated to 80 ℃, then add a small amount of flavor ( or not) .
( 4 ) high-pressure homogenizer : two homogenization, first stage homogenization pressure of 23 MPa , the second stage homogenization pressure of 30 MPa , temperature of about

80 ℃ homogenization .
( 5 ) Sterilization : 121 ℃ sterilized for 15 minutes.
( Three ) product quality indicators
1 . Sensory Index
Color: milky white appearance , no precipitation and stratification ; flavor : fresh coconut juice with unique flavor and aroma , no smell.
2 . Physical indicators
Total sugar ( in sugar meter ) > 8 g / 100 ml ; protein ≥ 0.6 g / 100 ml ; total acidity ( as lactic acid ) ≤ 0.1 g / 100 ml ; total solids > 8 g / 100 ml .

Introduction trommel knowledge

    Mine is a trommel for the power plant , coking plant , building materials, metallurgy , chemical, mining and other industries and the development of special screening equipment, which overcomes the circular and linear vibrating screen sieve material in relatively wet crushing plant appears when plugging problems and improve the yield and reliability of the screening system .
    Mine is a hexagonal trommel drum rack , funnel, reducer, motor into five parts , according to the actual production needs can be a variety resettlement program designs. Crushed stone into the drum , the drum is rotated by the action of centrifugal force and jigging screening materials. By

Different network -mesh sieve out one by one . Different specifications of stone sieve out after falling into the funnel to the finished material belt field . As the drum rotates while being complete crushing plant by the centrifugal force of rotation of the drum and jigging action of screening material . On the one hand large size of stone along the slope of the drum

Before flowing through various mesh sieve gradually being screened out . After screening out small stone falling into each funnel , then the labor movement by the people rushed out of the finished product or gravity heap.
Mining trommel structure of the main features:
1 sieve clogging .
(2) smooth operation, low noise .
3 simple structure , easy maintenance.
4 machine reliability , less time investment .
5 using a special screen, high efficiency, long service life.

Vibration sieve what trajectory

   Also known as three-dimensional rotary vibration Vibration: The vibration of the vibrating body the projection on the horizontal plane trajectory is a circle or an ellipse , in the form of vibration is called spin vibrations. Such shaker to be known vibration sieve . Rotary vibration can be divided into flat spin type vibration , vortex -type rotary type vibration vibration and complex three forms . When the

Vibration of the vibrating body in the mobile crushers for sale vertical plane of projection trajectory is a horizontal line , their vibrations called a swing -type vibration ; when the vibration in the vertical plane that the trajectory is an oblique projection of a straight line , its vibrations called vortex rotary type vibration ; when the vibration body vibration in the vertical plane of the cast locus

Shadow of a circle or ellipse , its Semi-mobile crushing plant called complex spin type vibration . Usually consists of vertical vibration motor vibration equipment generates spin excitation vibration , the vibration form then look at both ends of vertical vibration motor excitation depending on the angle block . Also be two foot mounting type vibration motor vibration design aliquots

Preparation sides , it was for a set point of the shaft , the vibration of the vibration device will also produce rotation

2013年9月8日星期日

What factors will affect the normal operation of the feeder

First, the working principle
     Belt and weightlessness feeder is today the most used two kinds of weighing feeder type , but because they work differently and makes them their feeding accuracy factors

are not the same .
     The weighing belt feeding process, when the sand vibrating screen material into the feeder , the material can form a substantially uniform material bed , and then is conveyed through a shear

gate ; when a thin layer of material quickly through the weighing section , feeder to detect the weight of the stone screening machine material ; according to the detected

Weight, belt speed can be adjusted continuously and automatically , so that the weight of material discharged can always controllable state. In contrast, in weightlessness

feeding method , the entire feeder, hopper and discharge of materials material continuously being weighed , so that the feeder

The output rate ( loss of weight of the feed rate of the system ) to be accurately controlled to achieve the desired feed rate .
Second, the feed material
     Typically , the material determine the required feeder type. For those difficult to handle , it will overflow the flow of materials or difficult materials , it is best to

use weight loss feeder , which is characterized according to the specific materials are properly configured ; while not required for the free flow of feed material

Machine using any special configuration , use the belt feeder is the best choice .
     Of course , this is just a general principle. For example, in plastics processing , due to feeding and handling of materials encountered in handling characteristics vary

widely , requires plastics processors should determine feeder technical specifications and selection stage , we should give full attention to the material properties of the

assessment

Evaluation. In order to give the material feeder with the correct match , plastics processors should feeder supplier in close consultation with the number of necessary

laboratory tests to confirm for selection .
Third, the weighing system
      Whether you choose to or choose weight loss belt feeder , feeding must be accurate in order to ensure accurate weighing. The feed to the weighing belt , for a given

operating range , the required feed rate regardless of how much weight to be measured are relatively small and almost

Constant. Therefore , the belt of the weighing system the feed line loss of the process as so important.
      Since the weighing belt feeding process is generally not required to configure the metering station on the operating range of the sensor is applied to measure the load ,

so the weight of the material requirements of the resolution to be lower. However, weigh belt feeder belt detection accuracy for any change in weight was

Are extremely sensitive , regardless of whether the change is caused by the material adhering to the belt caused by or due to the weight sensor zero drift caused . Impact

crusher feeding process requirements weightlessness weighing system has a wide operating range , excellent linearity , able to accurately determine the total system

Weight high enough resolution and in addition to the process for rapid measurements are required for high level of responsiveness. In addition, the low rate feed applications,

weight loss , if the detected total weight compared to the weight loss between the time very small, the measurement resolution of the

Level is especially important . This is because the process of weight loss not weighing the feed belt feeding processes that rely on stable zeros, which is the focus of the

weight changes , rather than an absolute measure of the weight values.
Fourth, the mechanical system
      Because weight loss feeder mechanical structure is simple , people rarely worry about feeding accuracy problems . However, the belt feeder applications , feeding accuracy

may be affected by the impact of the weighing station dislocation . Specifically, it is directly in the weighing station upstream of the feed table with fixed

Weighing station itself, feed rate misalignment will cause unexpected increase or decrease. Additionally, any of the belt traction tension or cleanliness factors related to the

feed rate will result in an error . Therefore, in the equipment selection process and in the preparation of any maintenance program , they should

The operation of the system reliability and effectiveness assessed.
V. Control
      Any feeder, whether it is a belt feeder , or weight loss feeder will configure a controller to perform the basic functions of equipment operation . In general , reliable

control function often depends on the accuracy of strengthening, while providing enhanced functionality is to create a

These conditions or to meet certain requirements. Compound crusher m weigh belt feeder process required enhancements include transportation lag delay , automatic belt weighing,

sprinkle overflow detection and many other items ; while weightless feeding process controls needed enhancements are included in order to solve environmental interference impact

Take the weight signal filtering, and the complexity of the feeder in order to add material stage to maintain volume measurement accuracy coupled with material provided by the

array control technology.
Six , environmental factors
      Concerned about the operating environment of the feeder will often reveal to ensure reliable operation of the feeder method . Factors such as when the vibration is when

the measures will be taken with other devices feeder to isolate. These measures typically include the use of flexible joints as well as import and export of equipment

Damping device installed . Moreover, whenever possible, you should avoid high temperature , humidity, wind and other environmental factors on the impact of the feeder .
Seven , maintenance
      Without a certain level of maintenance , it is impossible to expect precision equipment will work accurately . Therefore, proper maintenance is still very necessary.

Including: regular cleaning weigh belt feeder inside to avoid the build-up caused by the material feed error ; inspection

Belts for wear and adhesion of material on the belt , if necessary, to be replaced ; checks associated with the belt mechanical system is running correctly ; regularly inspect

all flexible joints , ensure a solid connection. If the connector is not tight , it will affect weight loss feeder weight measurement

Amount of accuracy.

Feeder reasons causing short life

      Vibrating feeder is widely used in sand making production line, high crushing production line feeding equipment for the massive, granular materials supplied to the

continuous quantitative mining Screening machine crushing machinery , grinding machinery in order to achieve fast and efficient materials production and processing. When using vibration feeder

Machine , pay attention to the device structure , connecting parts , the work environment affects the service life of the equipment , the various factors affecting the

inspection and commissioning , to avoid feeder because there is no regular maintenance caused by the shortening of life .
Feeder reasons causing short life
      1, in the vibrating mobile screening plant equipment for the first time after installation , you want to re- check the equipment grounding protection debugging . Feeder on the ground to

ensure the insulation resistance of the rated voltage, power, current parameters are the same , depending on the vibration motor voltage requirements of the appropriate

insulation

Ohmmeter , and to maintain the feeder insulation resistance at work did kV voltage not less than 1mω.
      2, the feeder before work to check the exterior cracks , fasteners bolts are tightened , with or without loosening . Rotation of the vibration motor bearing structure

inspection and adding lubricant agent , lubricating agents to ensure adequate cleaning , vibration motor cooling device

Flexible operation , the motor ventilation is good. Avoid the feeder links caused by loose bolts shortened life .
      3 , vibrating feeder in the course of the event of damaged parts need to be replaced, the device must be strictly in accordance with the instructions , select the device

model consistent with the feeder parts for reinstallation , must not disassemble replacement is not supporting parts caused by transport equipment

Line failures, and even cause equipment downtime and more serious damage.

2013年9月6日星期五

Resolution heavy plate feeder structure

Heavy plate feeder transport machinery auxiliary equipment is also commonly used in feed processing plant weight feeder , the machine classification in a large concentrator

crushing plant and cement , building materials and other departments, as a silo to the primary crusher continuously and uniformly Mining vibrating screen purposes , can also be used for short-

distance transport grain

Degree with a larger proportion of the material .
Heavy plate feeder can be installed horizontally , can also be tilted installation, maximum inclination 12 °. Materials to avoid a direct blow to the feeder , the requirements

do not appear silo emptying state.
For heavy , super heavy plate feeder on a rack set a fixed bearing rollers . Rollers with head and tail bearing centralized oil lubrication methods to ensure lubrication

regularly , comprehensively .
Tensioner bearing structures using steel and bolt , easy assembly and disassembly . For heavy and super heavy-duty tensioning device , add a set of springs to cushion vibration

absorption .

Analytic disc feeder and feeder works

Disc feeder from the plate feeder body , drives, metering belt conveyor and metering devices , is suitable for the following fines 20mm feed . Disc feeder and conveyor drive means by

a set of the electromagnetic clutch drive device can be realized feeder opening stop ,

And both functional conversion effect.
Feeder in the production process , can the massive, granular materials from silos timed , evenly and continuously into the affected device to go in the gravel production line

crushing machinery for continuous uniform feeding , and coarse screening material , widely used in mineral processing , metallurgy, chemical

, Coal , building materials, abrasive and other industries crushing and screening equipment . Belt feeder according to equipment performance requirements , configuration, materials

should be designed to minimize the pressure on the tank , Bunker discharge port shall not be greater than the effective width of a quarter , the material flow speed control 6 -

18m/min. Right to a larger quantity of materials , in order to not affect the performance of the feeder , stopped mining board shall fix the tank body ; hopper bottom discharge

should be set high enough to block mine boards.

2013年9月5日星期四

Crusher to reduce sulfur emissions in the protection of the environment is essential

With the launching of economic , scientific and technological progress, the quality of the grinder in progress in increasing its product range , its usefulness also been expanding . Currently, the grinding machine can be used for cement , sand , coal and other building materials manufacturing , construction waste can be used for re- grinding applications that can be used in metallurgy,

Chemical and many other industries in the country 's economy was unfolding play an irreplaceable role, especially for Feeding machine of coal thermal power plants can effectively reduce sulfur emissions.

Home from the factory outside of electromechanical domestic appliances , which are inseparable from the same power support. Electricity is an extraordinary human intelligent crystallization , on behalf of the human innovative natural glory attainments. After the people's China Vibrating Screen access to electricity There are many ways , for example, thermal power , hydropower , solar power

, Nuclear power and so on. For my country, the overall construction of thermal power generation in the occupation in the dominant position , the proportion of up to two-thirds . Although thermal environment , skill requests is low, but also the most significant environmental pollution , thermal power plant emissions of sulfur dioxide, nitrous , etc.

Gas comprehend significant impact on people's body weakness . Desulfurization of thermal power is the power plant after the environmental protection departments have rules for each hard targets , and mill for crushing coal thermal power plants can effectively reduce sulfur emissions. Coal crushing industry supply careful slight serve , especially in the

Machinery and equipment in daily use , conservation and protection of thermal power plants to reduce sulfur emissions from industry supply meticulous serve and protect the effective application of the product .

Must understand the current situation of broken jaw

Jaw crusher , also known as broken jaw , or the tiger population , is widely used in mining, smelting, building material, highway , railway, water conservancy and chemical industry in various ores and medium-grained bulk materials broken . The maximum compressive strength of the material to be broken is 320Mpa.
 So double roller crusher life and work efficiency is directly linked with the cost of business , but now the domestic jaw crusher manufacturer's technical level is the disparity , the need to carefully consider the options .
Most manufacturers of products with the world advanced level far . Take the jaw crusher frame , the frame is divided into cast frame and welded frame, domestic jaw crusher rack is not crushing and screening plant reasonable to use , there is no force in accordance with the actual layout of the ribs, led to the domestic level and

The level of foreign gap.
Of two jaw crusher , jaw with static jaw , palate with just crocodile jaw. Jaw crusher in the design process, to consider is the best moving jaw movement characteristics while moving jaw jaw with the force of static arrangement of ribs, improve crusher performance. Another point is the country

Need to be addressed within the subject crusher , jaw crusher machine need to reduce weight .
Another jaw crusher also need to be improved in several aspects: low yield, large limestone crushing, power consumption , the liberation of labor intensity and the work environment .

2013年9月4日星期三

CNC Feeder basic knowledge of the structure and

CNC Feeder is a digital control (Computer numerical control machine tools) for short, is an automated process control system fitted . The control system is able to deal with

logic control codes or other crushing equipment symbols Directive the program and its decoding

, So that the action CNC bending machines and machining parts. CNC Feeder use is very wide, it is the electronic era, many companies have opted for a more efficient machinery

and equipment to improve productivity .

In CNC machining , CNC milling the most complex , most problems to be solved . In addition to outside CNC milling CNC wire plate feeder cutting, CNC EDM , CNC turning , CNC grinding, CNC

programming , etc. have their own characteristics , is the role of the servo system from the numerical control device

The feeder structure of the pulse signal NC

, Convert the movement of moving parts . Specifically the following components: CNC Feeder structure.

An auxiliary device

Index feeder control some of the necessary supporting components to ensure the operation of CNC feeder , such as cooling , chip removal , lubrication, lighting , monitoring and

so on. It includes hydraulic and pneumatic devices , chip conveyor , pallet , NC rotary table and CNC dividing head, also includes tools and monitoring

Control detection devices.

2 , the drive means

   He is the numerical feeder actuator driving member , including the spindle drive unit , feed unit , the spindle motor and the feed motor. He was under the control of the NC

device electrical or electro-hydraulic servo system to achieve through the spindle and feed drive . When several infeed linkage , you can complete the set

Position, line, plane curves and space curve machining .

3, the host

He is the subject of CNC feeder , including , column , spindle , feed mechanism and other mechanical parts. He is used to perform a variety of machining mechanical parts.

Programming and other ancillary equipment : can be used to machine parts outside programming and storage.

4 , numerical control device

The core is the numerical feeder , including the hardware (printed circuit board , CRT monitors, key boxes , paper tape reader , etc. ) and the corresponding software , for

inputting digital part program and complete input information storage, data conversion , interpolation operation and the realization of a variety of control

Function .

1 NC NC feeder adopts computer control system , more user-friendly design . Suitable for all kinds of metal sheet feeding and corrected.
2 Suitable for all kinds of hardware , electronics, appliances, toys and automotive parts stamping processing , feed correction, accurate and durable .
3 The machine adopts imported day full servo motors , electrical boxes and other electronic components and controllers , product failure rate , long life.
4 , chrome wheels , high-precision , very durable.
5 , roller leveling machine placed on the same machine with feeder table, with the whole feeding can reduce errors in peacetime , to achieve high-precision requirements , easy

to install and does not occupy space.
6, can be arbitrarily set the feed length , easy operation, safety and stability, will flatten convenient front coil material into the wheel . Motor driven arm binder system

that allows the material does not loose .
7 , photoelectric materials arc control system, high efficiency and simplicity of feeding ; rack mining inverter motor drive motor can be synchronized feeder .
CNC Feeder definitions and main functions:
CNC punch press feeder, mechanical and electrical integration of automation equipment, is to work with the general press , Deep Throat punch presses or gantry supporting a

special auxiliary equipment, widely used in screens, canning, mechanical, electrical, instrumentation, hardware and other industries punching.
This equipment has formulated color monitor , adapt to harsh environments , industrial-grade computer controller, multi-channel input and output interfaces , high torque motor ,

high reliability drives, precision ball screw , high-performance linear motion guide , to meet the various requirements of the stamping process . Adoption of the ISO

international standard CNC

Code programming , simple programming , popular, easy to learn, have to meet a variety of stamping software features , AutoCAD drawings can be generated automatically processing

program for processing, in order to achieve a real sense of automatic programming process can be adapted to the needs of different industries .

This machine features :
1 , two-axis , independent two -dimensional coordinate movement digital control.
2, the servo motor controlled precision ball screw drive and locking .
3 , which can be manually fast, slow moving and incremental movement.
4 , the absolute coordinates and relative coordinates mixed programming .
5 , screw backlash software compensation .
6 , decimal data input.
7, using ISO standard NC code programming.
8 , recall, modify , delete, insert other editing functions.
9, the dry run self-diagnostics , the program displays an error .
10 , overcurrent , overvoltage , overheating , wrong phase protection .
11 , breakpoints continue processing functions.
12, CAD graphics automatically converted to processing code.
13 , can control the closing and opening punch .

Disc feeder characteristics are as follows

1 , rotary gear mounted on the outside of the support , installation, and repair and maintenance is very convenient.
2, the machine body and the blanking crusher plant manufacturer sleeve is detachable modular structure, can be achieved using on-site rapid disassembly.
3 , material handling process can be completely closed , favor the use of on-site management of high cleanliness .
4, the machine is completely self-lubricating, without additional lubrication facilities , greatly improved reliability .
5 , a gate installed at position angle 90 ° ~ 180 ° range of arbitrary choice , the application even easier.
6 , using the rotary disc feeder support crushing plant structure , large capacity , smooth operation.
7 , the drive train consists of a gear and slewing gear components , the system simple , high transmission efficiency , long service life.

2013年9月3日星期二

Heavy plate feeder operating procedures and maintenance

Heavy Mobile crushing plant and maintenance procedures are as follows:
A machine is in use should always maintain a certain chain plate thickness of the material , generally not less than 500 mm , not in the emptying state board discharge directly

to the chain . When you can not avoid when emptied , before unloading Lay a layer of debris in the chain plate to prevent the direct impact of the chain plate , when the bulk

material

Clogging material in the form of coal screening machine rows of blasting is not permitted at .
2 machine installation rear discharge opening to the distance between the chain plate , not less than 1.5 to 2 times the largest block of material , to ensure smooth flow of

materials to improve the service life of the chain plate . Steeplechase after installation should be blocked on both sides of the chain plate gap is left between 8-13 mm , Mian

materials to avoid spills, and the resulting material and sideboard

Friction, produce sound , stopped plate chain plate surface with the bottom edge to keep the distance of 5-10 mm , to prevent material spills, tensioning device axis line from

the silo wall should leave some space is generally 350-500 mm , easy maintenance disassembly.
3 crawler chain pitch wear to greater than 7 mm , the sleeve should be transferred to an angle or should be replaced with a new chain.
4 Remove cover up , first loosen all the screws , but do not remove all the screws , remove the galvanized screws and washers , the removed screw into the front of the shop help

pressure ring screw hole , gently tap head make up sets loose, then pull out the screws , pull up sets that followed .
5 Install sets up when the original installation of the joint surface should be cleaned evenly coated with a thin lubricant ( excluding two alumina ) , will set up screw wrench

force away from the cross- check by diagonal evenly tightened.
6 Install bearing spindle device , the minimum radial clearance should ensure that 0.08 mm or so, reduce the amount of radial clearance between the 0.09-0.11 mm can, bearing

tensioning device should ensure that minimum clearance of about 0.55 mm , and its diameter to reduce the amount of 0.06-0.07 mm

Rooms can be.
7 Replace the chain board, chain plates bolted with track links , each bolt tightening torque for the 750-900N.M.
8 The operator should be familiar with the machine's structural principle , each class should be checked before each part operation is normal, chain plate bolts are loose , the

examination was normal before starting operation .
9 . Properly lubricate the bearings and gear , and regularly replaced with new oil.
10 Note Check the chain plate work , especially without loosening bolts to maintain proper chain tension , if found wandering through the tensioning device should be adjusted .
11 does not occur during normal operation and fault sound should stop immediately , carefully examine the causes, discharge failure.
12 In addition to pay attention to the use of routine maintenance , but also regular inspection, maintenance and timely replacement of worn parts.

Material sealed screw feeder principle and basic form

Biomass is the most widely used on Earth material , biomass is an important area of ​​application of biomass gasification . Circulating fluidized bed gasification is a major

biomass gasification technology, which is the basic principle Vibration feedergasification in a fluidized state . Biomass burning in the lower part of the bed ,

The upper part of the bed gasification , carbon particles blown collected by various separation down , back to the bed gasification cycle . The technology for fuel adaptability,

gasification temperature is lower , and the large-scale continuous production . Circulating fluidized bed gasification technology in recent years has been the rapid development

and application .
Looking abroad circulating fluidized bed gasification plant , the raw material feeding device is always flawed , the most important is the feeder sealing problems. Positive

pressure circulating fluidized bed system , in order to prevent leakage of air flow inside the furnace , you must cut off the feeder connected with the outside world . Usually

do

Method is to use the feed to seal off the wind , but the effect is poor. Here straw as raw material , the application of material sealed screw feeder device solved the problem

of feeding seals .
1 screw feeder material sealed principle
Screw feeder is installed in the center axis of the helical segments , the shaft and the helical segments in a fixed rotation within the housing , with the function of a

mechanical device to transport raw materials . When changing the pitch of the helix or spiral path , the transmission capacity of the feeder will change , through the

transmission capacity feeder

Changes in the raw material accumulation within the feeder , which play a role in sealing material , which is material sealed .
Spiral material sealed feeder ( also known as material sealed auger ) has the following characteristics :
( 1 ) screw feeder transport distance is short, usually no more than 3m;
( 2 ) screw feeder for mobility, non-tacky or sticky little or no pondering pondering the nature of small powder granular materials , raw material particle size generally less

than 50mm, the moisture content does not apply to large , hard , pondering of the great and highly viscous materials ;
( 3 ) screw feeder is a relatively closed system , transmission capacity is relatively small, the power consumption is relatively large .
2 screw feeder basic form of seal material
( A ) tapered spiral feeder
Tapered spiral feeder is in a certain period in the shaft diameter or pitch screw feeder diminishing . When taking a certain value , feeder transmission capacity will be

reduced, but the raw material into the feeder conveyor is a certain amount , so that when the raw material is transported , the late delivery of raw materials

Will be the backlog , as time goes by, the backlog of raw materials will be more and more slowly will be in the interior of the casing feeder filled with raw materials. When the

material is to a certain extent the backlog , the raw material particles will gradually narrow the gap between , when the narrow gap to a certain extent, it will give off

Feeder ventilation with the outside , so that to achieve the purpose of sealing .
( 2 ) Disconnect the spiral feeder
Disconnect the Dewatering screen is removed in a certain period in the axis of the spiral chip conveyor while it declined sharply in the feeder . This form of feeder tapered sealing

principle and the same type of feeder , the difference is material handling capabilities. In the off -type feeder , the axis of the screw diameter segment

And pitch are zero , by the screw feeder throughput formula shows that the relative resistance of tapered -type feeder is bigger.
3 . Analysis and discussion
Take 3 different granularity , hardness and elasticity of materials, such as corn stalks (20-40mm), peanut shells, rice husk powder (0.1-1mm), to prepare a current tester,

blowers, and grouping experiments, corresponding current , length, and the sealing performance ( room temperature only

Sealing performance ) .
For each type of feeder , the feeder has a length such that a good seal machine , while power consumption is not large. When it exceeds a certain value , the raw material will

be clogged pipes, raw materials can not be transported , then the motor current sharp rise is likely to be damaged due to overload the motor . So

, In order to make the feeder in the work process , both the normal transport of raw materials , while maintaining the seal, you must choose the right seal segment length. For

different materials , the feeder of the length of the sealing section is different, in general, large particle size , poor compressibility , the surface roughness

Large material required length is small; the small particle size , compressibility , surface roughness of the material requires a large length . This is just a general rule,

there will be some unusual materials studied. In short , in order to get a reasonable seal feeder, must be based on different materials with

Circumstances of the design .
Sealing screw feeder structures , there are many , the principle is basically the same , are transported by reducing the amount of raw materials played a role in the backlog ,

so as to achieve the purpose of sealing .
4 Conclusion
( 1 ) Sealing screw feeder design difficulty is necessary to ensure the tightness , but also to ensure smooth transportation of raw materials , which are mutually contradictory

problems . Meanwhile, the different materials required for sealing the length of the seal segments may also vary widely , but also because even if the same particle size as a

raw material , changes in humidity and other factors,

The sake of change . To design a rational sealing screw feeder should be based on the theoretical analysis , combined with a large number of experiments to determine a

reasonable design.
( 2 ) For the circulating fluidized bed is recommended to choose the middle disconnect type screw feeder , first, because of its good sealing effect, the fluidized bed of the

powder material is particularly suitable ; Second, because the feeder pipe sealing segment middle , thus reducing the material temperature of the internal temperature of the bed

2013年9月2日星期一

How to connect the power vibration motor

    Vibration motor vibrating screen manufacturers of the cable due to bear , so should be used in heavy-duty four -core cable , cable outlet is not allowed near sharp bends , to have a 8-9 times

greater than the outer diameter of the cable bend radius , and then the cable is not fixed to the stationary moving coal crushing plant the machine or the frame . Its large distance

Approximately 0.6 m to 0.9 m . In the fixed cable clamp Department should pad with soft insulating material to prevent friction damage to the cable. Four core cable ground wire

, one end of the junction box is connected to the grounding screw , the other end must be grounded . Small models vibration motor, chassis no wiring

Boxes, using heavy three -core cable directly from the inside of the motor wiring. Near the foot of the motor is equipped with grounding screw , use must be grounded.
Note: The vibration motor cable outlet for the wearing parts, often due to vibration friction damage, leading to motor phase operation, damage to the motor . Users should always

check the cable position should be replaced if worn the same type cable.

About the feeder structure

Feeder machine structure is simple , stable vibration Feeding machine uniform, continuous performance, excitation force adjustable ; subject to change and control the flow , easy to

operate ; eccentric block as vibration source , low noise, low power consumption, regulation performance well, no red material phenomenon ; prevents the use of a closed body

Dust pollution.
Empty before trial , should all bolt once, especially the vibration motor bolts , 3-5 hours of continuous operation should be re- tightened once.
Vibrating stone feeding machine for ingredients, dosing time in order to ensure uniform feeding stability and to prevent gravity materials should be installed horizontally , such as for

general continuous feeding materials can be down-dip 10 ° installation. For viscous materials and high moisture material can be down-dip 15 ° installation.
After installation of the feeder should be left lateral clearance of 20mm should be the level of swimming , hanging device using flexible connections . Every February motor

bearing grease filling time , filling the hot season should once monthly oil .
When testing two vibrating motors must reverse rotation , current and noise stability , abnormal should promptly stop treatment .

2013年9月1日星期日

Learn vibration motor applications and forms of exercise

Vibrating machinery and equipment has been using vibration motor as a simple and reliable and efficient power. Body vibration of the vibration motor mounted on a different

combination , can produce different vibration locus , thereby effectively to perform tasks . Vibration motor can generate a circular , oval, linear

, Complex movement.
Linear Vibration: vibrating body ( cabinet vibration and material ) vibration trajectory in the horizontal plane and the vertical plane of projection are straight , their form

is called linear vibration vibration . This type of shaker to be known or Semi-mobile crushing plant sieve . Connect two of the same type vibration motor

Vibration equipment installed in the body with the two vibration motor shaft in a position parallel to each other , running two vibrating motors turn in the opposite , then the

inevitable two vibrating motors running simultaneously , the body produces linear vibration .
Circular or elliptical vibration : vibration of the vibrating body the projection on the horizontal plane trajectory is a straight line , and in the vertical plane of projection

is a circle or an ellipse , its form is called circular or elliptical vibration of vibration . Such Vibrating feeder to be known round or circular vibrating sieve shaker .

Usually a vibrating

Motor is mounted on the body of the vibration machine can produce this movement. Round or oval vibration motor vibration occurs in the plane perpendicular to the shaft , in the

form of the vibration motor and the machine to see the relative position of the center of gravity .
Complex Vibration: vibration body vibration is generated by two excitation systems , the vibration form called composite vibrations. Generally have dual composite and double-

width composite forms. Some special properties of vibrating screening equipment , using two different models of different speeds vibration motor,

Dispensing device for screening by the feed end and a discharge end , so that by the feed -side rendering large amplitude low frequency vibration , while the discharge -side

rendering of small amplitude high frequency vibration , the middle screening equipment overlapping two kinds of vibration, the screening equipment play a more effective

screening effect.
Rotary Vibration: The vibration of the vibrating body the projection on the horizontal plane trajectory is a circle or an ellipse , in the form of vibration is called spin

vibrations. Such shaker to be known vibration sieve . Rotary vibration can be divided into flat spin type vibration , vortex -type rotary type vibration vibration and complex

three forms . When the vibration of the vibrating body

Trajectory in the vertical plane is a horizontal projection of a straight line , its vibrations called a swing -type vibration ; when the vibration in the vertical plane that

the trajectory is an oblique projection of a straight line , its form is called a scroll-type vibration vibration ; when vibration of the vibrating body in the vertical plane of

projection trajectory is a circle or

Oval , its vibrations called complex spin type vibration . Usually consists of vertical vibration motor vibration equipment generates spin excitation vibration , the vibration

form then look at both ends of vertical vibration motor excitation depending on the angle block . Also be two foot mounting type vibration motor vibration equipment were put in

on both sides , so that

It was for a set point of the shaft , the vibration of the vibration device will also produce spin .

Precautions when using the feeder

Vibrating feeder is widely used in sand making production line, high crushing production line feeding equipment for the massive, granular materials supplied to the continuous

quantitative jaw crusher , sand vibrating screen machine making machine , Raymond Mill mining machinery such as crushing , grinding machines , in order to achieve fast material

Fast and efficient production and processing. In the use of vibrating feeder , pay attention to the device structure , connecting parts , the work environment affects the

service life of the equipment , the various factors affecting the inspection and commissioning , to avoid feeder because there is no regular maintenance resulting in life shrink

Shorter.
a. in the feeder after the initial installation , the equipment grounding protection should be re- checked debugging. Feeder on the ground to ensure the Sand vibrating screen insulation resistance of

the rated voltage, power, current parameters are the same , depending on the requirements of the appropriate vibration motor voltage insulation resistance

Table and to keep the feeder insulation resistance at work did kV voltage not less than 1MΩ.
b. feeder in the course of the event of damaged parts need to be replaced, the device must be strictly in accordance with the instructions , select the device model consistent

with the feeder parts for reinstallation , must not disassemble replacement is not supporting parts caused by equipment operation

Failure , and even cause equipment downtime and more serious damage occurs .
c. feeder before work to check the exterior cracks , fasteners bolts are tightened , with or without loosening . Rotation of the vibration motor bearing structure inspection and

adding lubricant agent , lubricating agents to ensure adequate cleaning , vibration motor cooling device operation

Flexible turn the motor ventilation is good. Avoid the feeder links caused by loose bolts shortened life .