Double roll zhenyuan crusher plant

Double roll crusher is the use of two separate drive rollers, squeezing and rolling mill shear force to the zhenyuan Mobile crushing plant relative rotation of the broken material. When the material into the crushing chamber of the machine after the material by rotating rollers Nie force, forced through the material between two rollers, the rollers squeeze by both rolling and cutting grinding, the material begins fragmentation, fragmentation after small particles of rotation of the rollers along zhenyuan belt weigh feeder the tangent through the gap between the two rollers, under the machine to throw particulate material larger than the gap and continue to be broken into small particles are discharged.

Daily maintenance of zhenyuan Mining vibrating screen

Daily maintenance of vibrating screen:1, before the start of: (1) check the coarse and fine mesh without damage (2) each bundle ring is lock 2, startup:(1) pay attention to whether the abnormal zhenyuan vibratingscreen manufacturers noise (2) current is stable (3) check if there is abnormal vibration of 3, after use: after each use is clean. Regular maintenance of vibration sieve check regularly: coarse mesh, mesh and zhenyuan crushing equipment spring with or without the fatigue and damage, all parts of the body due to vibration and produce damage, the site need to add lubricant to lubricate.

Apron feeder works

Using pitch 228.6mm (9 inches ) high strength forging chain traction bulldozer parts, two chains to bypass the drive sprocket mounted on a body and tail of the head of the body of theLinear vibrating screen together into a closed shape loop , the two rows of each link of the chain assembly of overlapping , the trough becomes heavy structure capable of carrying a continuous material transfer line . Its own weight and the weight of the Sand vibrating screen material by a multi-row rollers mounted on the body, chain roller and slide beam support . AC variable speed motor drive system by coupling reducer, and then set up the drive by a direct- drive low-speed operation carried institutions . Silo unloading into the tail of the transport material in the conveying line to the front of the body is discharged to the bottom of the working machine to achieve continuous and uniform feeding purposes.

Is the use of complex rotary shaker vibration transducer excitation arising from the work

Is the use of complex rotary shaker vibration transducer excitation arising from the work. Vibrator on the screen surface to produce rotating weight makes the plane swing vibration, and the lower rotating weight makes the screen surface to produce conical Coal crusher machine vibration, which makes the effect of the combined effects of the screen surface to produce complex rotary-type vibration. Its vibration is a complex spatial trajectory curve. This curve is a circular projection in a horizontal plane and Dewatering screenin the vertical plane of projection is an oval. The regulator, rotating hammer excitation force can change the amplitude. Adjust the upper and lower phase angle hammer space, you can change the shape of the curve of the screen surface and change the trajectory of the trajectory of the screen surface materials.

Mine selection and routine maintenance shaker motor

Vibration motor is one of the most important mining shaker parts , it is recommended to be careful in the choice of our choice in daily production activities should pay special

attention to maintenance, to extend the crushing plant life of the motor , which can be for enterprises to create their own higher interest value . The interests of all enterprises

Pursuit of a common goal , we purchase a machine , we must carefully calculated to bring its benefits to our company and the expected value of the scrapped after . Mine shaker

is not generally applicable to complete crushing plant a continuous grading operations where large materials are generally used dual-motor drive . Our mine

Shaker to use more energy-efficient motor as vibration source , lighter body such equipment quality , easy to transport , high efficiency, relatively wide range of applications

. Mine shaker vibration motor excitation , damping spring steel springs or rubber , wear-resistant belt weigh feeder material mesh sieve , sieve sealed or open

Boxes and other domestic and foreign advanced technology and advanced self-synchronous vibration principle .

   We pay special attention to the selection of the motor shaker when buying mine, motor type, power, life , and prices are all we need to know the information, we need to

carefully read the nameplate, understand the information and screening equipment . Select the motor too big too easy too easy

Small enough you can , too easily lead to waste of resources, too small easy to overload the motor is running , it may cause the motor to be damaged. We need a comprehensive

selection of considering all the factors , if the material particles larger screening , such as sand and gravel , but also higher production requirements , we

To select the appropriate power of larger motors. If the particles are more delicate materials screening , screening efficiency requirements are not high , we can reduce the

power of the motor proper contrast .

    To prolong the life of the shaker , the quality is good close to useless , no matter how good the quality of the stuff , if you do not care when using them , will soon be

scrapped, so we should pay attention to routine maintenance of the motor. Most vibration motors installed in harsh environments , large dust

Place , nor the cooling fan motor itself , thanks to the natural cooling , the correct use will extend the life of the motor and the efficiency of the motor, so routine

maintenance is particularly important . So we need to regularly check for vibration motor , found that the problem should be treated , not

Allows legacy issues interfere with our normal production , serious and even cause the motor may be burned . Vibration motor maintenance work to do , you can easily extend the

life of the shaker , for the company to create greater efficiency.

New trends in China crusher industry in 2012

In the " Twelfth Five-Year Plan" the second year , the rapid development of China's crusher Semi-mobile crushing plant enterprises . In order to fit the market , understand customer needs, to move towards

the development of the crusher industry in 2012 , and obtained the following analysis:

First, the local competition

The protection of housing mobile crushers for sale construction to start high-speed rail , domestic crusher machinery market is always full of energy. The domestic market is a big cake, along with the

continuous development of China's crushing machinery enterprises , this cake will be doomed beacon mess. With great efforts to build the western development and Xinjiang , the

western

Xinjiang region and become the new competitive broken machinery industry , the one who has mastered these two markets , who will rapid development. 2012 was a year of increased

domestic competition , but also the outcome of competition for a year .

Second, the development of overseas markets into the mainstream

For a long time , in the face of overseas markets , Chinese companies have been admitted by . However, with the continuous development of Chinese enterprises , China's

construction machinery has the strength to compete with international giants . Trinity acquired at the beginning of the German giant has revealed the strength of China's

construction machinery . Regardless of

Worth mentioning is going to acquire or build bases overseas worth mentioning, the overseas market , will not hand over our country .

Third, since the secondary market fire

With the transition of economic development , the allocation of social resources will be more rational optimization, used equipment will become the new way of the survival and

development of construction machinery industry 2012 . On the whole , China's excavator market in second-hand refurbished , re-manufacturing business is still in effect

Initial stage , second-hand construction machinery market has not and refurbishment , remanufacturing business interact , but this does not affect the used machinery in the

Chinese market since the fire .

Fourth, corporate diversification

With the continuous development of the market , our enterprise single crusher manufacturer difficult to market a variety of flowers to survive , in order to move forward ,

companies must diversify the only way to have a sustainable competitive edge.

Fifth, the oligarchs show

With the development of ups and downs in 2011 , China's crushing machinery enterprises have emerged oligarchs , the strong stronger, weaker eliminated. Will become more apparent

in 2012 , leading enterprises will have more market, small businesses will be very difficult . Follow the market development path , and stronger they are each crusher

Mechanical Enterprise 2012 common direction !

How to do mine shaker routine and periodic maintenance

Mine shaker role and principles:

     Fundamentals by vibration motor system installed on the lower end of the hammer shaft (unbalanced weight, the weight if the change in the upper and lower portion of the material can change the phase angle of the direction of travel), the vibration of the motor rotational movement into horizontal, vertical, Three-dimensional tilt movement, then this movement to convey to the screen surface.

Shaker structural features:

    1) unique mesh Belt feeder design for easy and quick replacement screen (only 3-5 minutes), in addition to this design allows the use of various mesh (nylon, special dragon, PP mesh).

2) screening machine design; compact and easy to assemble, a person can operate sieve machine.

3), and other related brands compared with the larger screening area and high efficiency of processing power.

4) His mother weight feeder fully supported fine mesh net, so fine mesh can be scored longer life, and lower consumables use fine mesh, silt long production process can reduce a lot of costs.

Shaker routine maintenance:

1, before the start:

(1) Check the coarse mesh and fine mesh for damage

(2) whether the locking ring beam for each group

2, start time:

(1) Note any abnormal noises

(2) whether the current stable

(3) whether the abnormal vibration

3, after use: After each use that to clean up.

Shaker regular maintenance:

Regular inspection coarse mesh, fine mesh and springs without fatigue and damage, whether all parts of the body resulting from damage due to vibration, the site must be added lubricant lubrication.

Vibration sieve

1 , ultra-high efficiency , compact and durable design , any powder , mucus class can be applied .

2 , for network easy, simple , easy to clean .

3 , water feeding, continuous operation, apron feeder multi-stage screening .

4 , the expected product direction can be arbitrarily changed along the circumferential direction .

5, small size , light weight, quick start , low noise.

6, the screening accuracy , high efficiency , high utilization screen .

7 , fully enclosed , no dust , can sand vibrating screen be up to 500 mesh sieve or 0.028mm.

8 , the unique grid design, screen using a long time , for network quickly and only 3-5 minutes .

9 , impurities, coarse material discharged automatically , can continuous operation. Screen machines can reach five, recommended to use three .

Shaker used in the mining industry characteristics

Vibrating screen is widely used in mining, ceramics , coal, chemical and other industries, many models of vibrating screen for

Meet the needs of different industries , vibrating screen appearance and structure is somewhat different , in which linear vibrating screen and

Circular vibrating screen is two good dewatering screen representatives of the two vibrating screen customers are quite satisfied . Well, according to vibration

The working principle and structure of the sieve shaker can be divided ;
1 , heavy vibrating screen, vibrating screen that is in the mining industry , mining vibrating sieve shaker as a heavy-duty , in

Production line is also a relatively common screening equipment . But such a shaker or a certain defect , when the

However , there are also many materials vibrating screen design with a certain relationship , in short, this style of production and screening effect shaker relatively

Low, and the work of such vibrating screen area is relatively small , vibrating screen mesh material likely to be blocked. But this earthquake

Moving Screen is also very obvious advantages , this shaker working process, his good power balance , screening process

In low speed shaker and the work is relatively stable . This is a heavy duty vibrating screen a big advantage .
2 , circular vibrating screen . Circular vibrating screen is mainly used in the production pipeline , right before the broken material is sieved

Circular vibrating screen is a major role in the mining industry to use it more of a screening device. The disadvantage is that circular vibrating screen

Screening and production efficiency is low , the advantage of not consume power , shaker manufacturing process results simple and convenient, and can be

Discharged directly to the screen surface materials .

How to effectively solve the vibration sieve static problems in the process of

In the process of using vibrating screen , vibrating screen users often encounter the phenomenon of static electricity , which can cause static electricity

Is varied , as some materials are themselves contain static and vibrating screens and screen material during friction

Rub will produce static electricity, if we crusher manufacturer do not try to solve these static, then the shaker is not working materials Jietuan

Easily through networks, can also cause harm stone screening machine to humans . So for a project at work shaker static how we should

What do we solve it ?

We can access the sieve shaker bottom line, so that the current export , you can also join in the materials before the screening anti- static

Power agent. Otherwise, it can increase the strength and efficiency of the work shaker .

Trommel knowledge

Learn drum screening machine industry trends , we need the composition from the drum screening machine industry has begun to understand the features and applications , Zhengzhou

Yicheng Machinery specialized to be covered here today .
      Trommel main motor, reducer , coal screening machine drum units, racks , closures, material inlet and outlet components. Tilt cylinder unit mounted on the rack. Electric motor through a

reduction of the drum unit are connected together through a coupling , the drive roller unit about its roll axis . When the material into the

Into the drum unit , the drum unit because of the tilt and roll , flip the screen surface material and move, so qualified materials ( undersize product ) is discharged through a

sieve drum cylindrical , unqualified oscillating screen material ( sieve product ) by discharge end of the drum . Because the material in the drum flip , move

Elastic , in the meshes of the card material can be ejected , to prevent clogging the sieve . Drum sieve sand machine, drum screening machine with drum sieve structure is almost

the same principle is that people are familiar with it and it is called there are differences .
I. quarry top for large pebbles grading and separating soil and stone powder .
Two . Gravel and sand with a top field separation .
Three . Lump coal and pulverized coal industry for separation and washing ( washing machine component departments )
Four . Chemical industry , mineral processing industries for the size of the lumps powdery substance classification and separation

Abnormal noise vibration sieve

Our customers reflect shaker during use sometimes appear abnormal noise , if there is such a phenomenon please customers do not worry, from the following aspects to find a cause

can be solved :
( A ) whether the reflection beam ring screws loose bundle ring and vibrating screen supplier frame can fit ;
( 2 ) reflect perforated plates without break , or being able to put the grid grooves ;
( 3 ) whether the consolidation of crusher plant durable base , when the exciting force is too large without constant reinforcement should base ;
( 4 ) whether there is a spring break scene ;
( 5 ) whether the motor mounting bolts are loose or damaged ;
( 6 ) whether the body in contact with other objects .

Sieve causes blockage

Shaker during normal operation, all the characteristics of the material , the material will produce a variety of different shapes form a mesh plug. Sieve clogging the main reasons the following:
    1 contains a large number of particles near the separation point ;
    Two materials with higher water content ;
    3 for spherical particles or mesh material with multiple points of contact ;
    4 can be electrostatically ;
    5 material has a fibrous material ;
    6 more flaky particles ;
    7 wire mesh weaving through thick ;
    8 thick rubber mesh sieve , etc. , hole shape design is unreasonable, did not reach the small great , leaving the particles stuck.
    Because of the need banana screen material particles are mostly irregular , so blocking reasons are varied . To effectively prevent clogging shaker should be reason for blocking the sieve measures . When fine-grained material , clay content of more, and sieve size than

Hours, clogging of water on the screen to play a decisive role. When the material is greater than 5% moisture , if the material is dried unconditionally , coping sieve , sieve for targeted selection. When the moisture content greater than 8%, should be used wet sieving . More material on the tabular grains , you need to

Change material crushing crushing manner 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 machinery reasonable support beam with a slight secondary vibration , thus effectively reducing the occurrence of clogging of the specific approach

Yes, the tensioning hooks made ??of Constant tension mechanism , namely the tension bolts to install springs.

Screw feeder Detailed structure and working principle

Screw feeder to go through the material weight by weighing bridge for testing to determine the weight of the material on the tape , mounted in the tail of the digital speed

sensor , continuous measurement of the running speed of the belt weigh feeder . The speed sensor pulse output proportional to the speed of the feeder , weight signal

And velocity signals together into Vibrating feeder controller, a microprocessor for processing, generating and displaying the cumulative amount / instantaneous flow . The flow rate is

compared with the set flow rate , controlled by the output signal of the inverter control instrumentation change the drive speed of the feeder , the feeder on the matter

Feed flow rate changes, and keep the set close to the feed flow , enabling dosing .
Feeder works
Feeder using the vibrator centrifugal force generated by rotation of the eccentric block , the screening hand, the movable portion vibrator forcibly make a continuous circle or

approximately circular movement. Material is in the car with the sieve screen surface inclined to make continuous throwing motion , the material evenly and continuously feed the

mouth to the subject

.
When the feeder base plate together with the forward movement of the material , the material inside the silo fill the body followed by a space . When backward movement of the

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

material gate

Adjustable feeding amount . Feeding amount is generally 40 tons / hour or less. Such feeder suitable for small and medium- size materials , mainly two kinds of tilting and

trough . Pendulum feeder floor is curved , hinged on the body , the work floor swing. Feeder trough bottom is flat, for the work

Reciprocating motion.

Shaker eccentric mounting points with protective cover

Eccentric :
Adjust shaker 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 coal screening machine burned. Therefore, adjusting the eccentric block , be sure to pay attention to its symmetry , that both ends of the eccentric block to two

Two corresponds to , or is connected to both ends of the center of the eccentric shaft parallel with the line , can not be a different surface states.

Protective cover :
Since shaker vibration motor mostly very poor working conditions , dusty , if shields Mifengbuyan easily into the dust , causing friction eccentric operation , thus burning

motor . So bad place in the Linear vibrating screen work environment , to increase the protective cover of the seal, and after

Often shaker hood cleaning dust inside .

How to buy crusher according to demand

Crusher is large machinery, the price is expensive, so in the purchase of many factors to consider when we must pay attention in the selection of the following factors :1 , the physical properties screening equipment of materials , such as friability , viscosity , water content and sediment Max feed size, etc. ;
2, the technical and economic indicators , so that both meet the quality, quantity requirements, easy to operate, reliable , and maximize cost savings ;
3, the total production of finished and grading requirements , according to select the type and capacity of the crusher ;
4 , Mobile crushing plant is larger investment , ask the customer the choice, must be careful.

Screening machine to achieve synchronous operation is the goal of their industry

        It is understood that circular vibrating screen mathematical model for dynamic analysis. Let sieve centroid in x, y coordinate origin 0, only along the x, y-axis

vibration in the x, y plane without rotation. Vibration system in accordance with established principles of motion Alembert differential equations, at any moment acting on the

sieve on the inertial force, damping force, elastic force and the centrifugal force of the force is zero. Therefore, building sand production line can be used. Kinetic analysis

of linear horizontal screen - two degrees of freedom vibration system.
   
        Linear vibrating sieve vibrator has two eccentric mass, the work reverse constant rotation, and two eccentric mass and equal eccentricity. In the vibration direction,

the exciting force of the centrifugal force generated by two of the eccentric mass and; vibration in the vertical direction, the force is zero. Thus, the vibration screening

machine direction of reciprocating linear or nearly linear vibrations. In the self-synchronous linear vibrating screen, in fact, between the two eccentric mass, damping

differences that exist, the motor drive characteristics are also minor differences.

       Therefore, the starting process in a shaker, the two eccentric mass is often not completely symmetrical in position, and there is a phase angle difference. However, since

the vibration direction of the vibration acceleration around the center of gravity and the oscillating sieve acceleration of the inertia force generated, will form a chase and

chase torque forces, the two eccentric mass produce chase procedure, and ultimately the synchronous operation of the Vibrating screen. The mathematical model of this motion.

Assuming the quality of the vibration shaker focus on the center of gravity, by the coordinates x and y to determine the movement of the plane of movement.

To explain to start the process of screening machine

       It is understood that the process of screening machine is starting up work from stationary eccentric mass angular velocity w, then the screening machine with angular

velocity w for stable operation. Therefore, when starting mining screen, maximum torque output of the motor. Since mc ground is relatively small, approximate calculation can

be ignored. Load characteristics and m is not a constant value, the vibration of a cycle, when the mass of the vibration movement from the bottom up, the motor will be greater

energy output; down by the quality of the vibration movement, it will emit energy.
  
        In this case, the supply current will be affected. However, because of the rotary member vibrator has a large flywheel effect, the load on the motor tends to be smooth

and uniform. Taking into account this factor, when starting the sieve maximum static torque must be multiplied by a coefficient K. Generally does not allow the motor starting

time is too long. So it can be used as a rail equipment selection. Some countries in the shaker motor selection, there are certain requirements for the start-up time. In shaker

design calculations, generally allowable starting time can be slightly higher than the recommended starting time 1 ~ 2s.

         The maximum torque of the motors in general vibrating screen classifier about 2 times the rated torque. Therefore, in the calculation and selection of motor power, its rated torque can be

approximated by the maximum torque to select, but also consider the circuit voltage drop. In the beginning, the acceleration is constant or nearly constant, the motor power

consumption, in addition to generating speed torque, the most of the power is mainly consumed in overcoming static torque. Then through the resonance zone, the steady state is

entered.

Circular Vibrating Screen Installation Precautions

Circular Vibrating Screen Before installing, first by mechanical packing slips, checks are complete and damaged parts, including vibrators Date from the factory, if more than

six months, must be re-washable and assembly, and replace it with clean oil .
    Installed by the time, in strict accordance with the setup diagram supplied mechanical equipment installation, including supporting the chassis must be mounted horizontally,

based on the foundation should have sufficient stiffness and strength to support the entire shaker dynamic load and static load.
    Screen box corners have a lug, bearing chassis corners have lifting holes, as required for lifting, not directly linked to the vibrator on lifting the entire sieve, sieve

box and ensure hopper, chute (chute) such a class Feeding equipment of non-sports parts should be maintained between the minimum clearance of 75mm.
    Strict requirements to install, make sure the spring seat and screen box friction damper plate on a 10mm gap between. Damping spring free height by matching, respectively,

so that the left and right sides of the front end or back-end spring free height equal as far as possible, the error does not exceed 5mm. Screen box after installation, around

the screen surface protection

Support level, or, in the spring seat Screening machine member and the support pad Q thin sheet iron.