How to install a circular vibrating screen? What is the installation method of vibrating screen?

There are many points in the installation of a circular vibrating screen:

One, please do this when installing the motor and V-belt! At the beginning of installation, the level of the motor should be corrected, the center line of the groove corresponding to the two pulleys should coincide, the tension of the V-belt should be moderately tight, and then the screen surface should be installed and fixed as required.

Second, check the circular vibrating screen.

Fixing of individual connecting parts (e.g. sieve plates, shakers, etc.). The screen should be evenly tensioned to prevent failures caused by local vibrations. After that, check whether there are any loopholes in the wiring of the motor and control box, and manually turn the transmission part to check whether the movement is normal.

3. Please do this when installing supports and rigging devices! At the beginning of the installation, the foundation is leveled, and then according to the installation drawing of the supporting or hanging device and the circular vibrating screen, the various components are sorted out in order, and the loading of the spring can be selected according to the marked test machine.

Fourth, when adjusting the levelness of the equipment, remember to keep the two ends parallel to eliminate the deflection of the screen box, pay attention to the infeed and discharge chute and small hopper of the sieve to check, to see if it is enough to have a collision phenomenon, if there is a timely treatment.

Fifth, check the flexibility of the exciter, after turning the pulley by hand to make the eccentric block out of the equilibrium position, there should be several free swings, such as the sieve arrived after more than half a year before installation, the exciter should be removed and re-cleaned and refueled.

Sixth, check the tightening of all bolts of the circular vibrating screen.

The circular vibrating screen is a fine screening equipment, its working principle is through the eccentric hammer at the upper and lower ends of the vibrating motor to form a certain angle, the screen body drives the screen surface to make horizontal, inclined and vertical three-dimensional movement, under the action of three-dimensional movement, the fine powder material will move to the bottom of the material layer and gradually pass through the screen to achieve the effect of screening grade.

Vibrating screen installation method:

1. Before installation, the concrete foundation should be made with reference to the installation drawing, and the flatness error of the embedded anchor bolts or embedded steel plate should be 3mm.

2. After installation, check and adjust the springs at all levels to make the force uniform at each support position, the axis of the motor should be 3-5mm lower than the axis of the vibrator, and the symmetrical point support spring should be of equal height (error 3mm).

3. All parts of the screen machine should be firmly connected, and all bolts should be tightened once before starting.

4. Debugging the angle of the eccentric block of the vibrator can adjust the excitation force, so as to adjust the amplitude of the sieve machine.

5. The distance between other obstacles should not be less than 100mm.

1. Before the installation of the equipment, first check whether the parts are complete and damaged according to the packing list, among which the vibrator must be re-disassembled, washed and assembled if it exceeds six months from the date of manufacture, and replaced with clean lubricating oil.

2. Read the installation drawings carefully before installing the equipment and install the equipment in strict accordance with the installation drawings, in which the supporting chassis must be installed horizontally on the foundation, and the foundation should have sufficient hardness and strength to ensure that it can support all the dynamic and static loads of the vibrating screen.

3. There are lifting lugs at the four corners of the screen box, and there are lifting holes at the four corners of the supporting chassis, which can be lifted according to the requirements of the drawing, and the whole screen cannot be directly hung on the vibrator.

4. Ensure that a minimum gap of 75mm should be maintained between the screen box and the hopper, trough (chute) and other non-moving parts.

5. The damping spring is selected according to the free height, so that the free height of the left and right springs of the front end or the rear end is equal as much as possible, and the error does not exceed 5mm. After the screen box is installed, the screen surface should be kept level on the left and right, otherwise, a thin iron sheet can be cushioned between the spring seat and the support.

That's pretty much it.

1. The equipment is filled with lubricating oil once a week.

2. Check the machine on schedule, check whether the bearings, accessories and motors are damaged, if there is damage, it should be replaced in time, and carefully check whether the screws at the connection of the sieve machine are loose, if they are loose, tighten them immediately.

3. Regularly inspect the wires to check whether the circuit wires of the whole machine are worn, and when replacing the wires, you need to use vibration-resistant cables.

4. When starting, it should be started when there is no material on the screen surface to avoid starting the machine with materials. Before stopping, stop feeding, let the screen surface material be discharged and then stop the machine, observe the operation of the screen machine, find abnormal sound or noise, stop the machine for inspection, find out the reason, and discharge the fault.

5. Before the circular vibrating screen equipment is started, check whether the screen, fine mesh and thick mesh are damaged, and whether each group of bundle rings is locked. It is also necessary to check whether the V ring of the rotary vibrating screen frame is damaged, and if there is damage, it should be repaired again to prevent material leakage. Rotundity.

6. When starting, carefully observe whether there is any abnormal noise, the current is stable, and whether there is any abnormal vibration.

7. After use, do a good job of cleaning, because the cleanliness of the screening material can be guaranteed the next time it is used.

Huanxin Machinery

At present, the country's industrial economy has been greatly developed, especially the development of sand and gravel aggregates, and the vibrating screening equipment has also been well developed as an important equipment in the production process of sand and gravel aggregates. This article gives you a brief introduction to the operation process of vibrating screening equipment and the maintenance of screening equipment, so that customers can make better and more reasonable choices and better understand vibrating screens.

Before starting, it is necessary to strictly check whether the transmission system of the vibrating screen is normal and reliable, whether the spring and screen box screen plate are broken, and whether the bolts and rivets are loose. Check whether there are debris on the screen surface, and check whether the lubrication of each lubrication part is good.

After receiving the driving signal, contact the belt conveyor post, then press the start button, and then give the screen after the motor is normal. In the process of operation, the temperature of the motor and the exciter bearing should be checked regularly, and the amplitude of the vibrating screen should be observed within the specified range and the screening effect of the vibrating screen.

When stopping, it is necessary to press the stop button to stop after all materials have been treated on the surface of the vibrating screen. It is necessary to observe whether there is a collision or excessive amplitude when the sieve passes through the resonance point, and if there is any abnormality, it should be reported immediately. After parking, it is necessary to do a good job in the maintenance and civilized production of the equipment.

1. When the vibrating screen is in normal operation, pay attention to the temperature of the vibrating motor bearing, and there should be no strong noise or abnormal sound during the operation.

2. Frequently check whether the screen surface is loose, and whether there is coal leakage in the local wear of the screen surface; Due to long-term working wear, it may lead to the enlargement or deformation of the screen hole of the vibrating screen, which will affect the grading particle size. When the above situation occurs, it should be stopped for repair in time.

3. Keep the bearing part of the vibrating screen with good lubrication. When the bearing is well installed and there is no heat or oil leakage, grease is injected into the oil chamber every other week or so; Every two months or so, the bearing shell should be disassembled, the bearing should be cleaned and re-injected with clean grease, the oil level should be checked regularly, and the oil level should be refueled in time when the oil level is too low.

1. The circular vibrating screen is mainly composed of a screen box, a screen, a vibrator and a damping spring. The vibrator is installed on the side plate of the screen box and is rotated by an electric motor through a V-belt, which generates centrifugal inertia force and forces the screen box to vibrate. If there are no special requirements, the circular vibrating screen is mainly divided into textile screen surface and perforated screen surface, and all kinds of screen surface can be satisfied.

Main components: 1. a screen box.

2. a supporting seat.

3. a discharge hopper.

4. a feed hopper.

5. a screen. 6. a shaker.

7. Flexible coupling.

8. a motor. 9. a motor base.

Second, the characteristics of the circular vibrating screen: 1

The circular vibrating screen adopts a cylindrical eccentric shaft exciter and a deviation block to adjust the amplitude, which is easy to use and maintain; 2.The circular vibrating screen adopts spring steel braided screen mesh or punched screen plate, which has a long service life and is not easy to plug holes; 3.The circular vibrating screen adopts rubber vibration isolation spring, which has long life, low noise and stable over-resonance area.

3. Applicable industries of circular vibrating screen:

1. Chemical industry: resins, coatings, industrial drugs, cosmetics, paints, traditional Chinese medicine powders, etc.

2. Food industry: powdered sugar, starch, salt, rice flour, milk powder, soybean milk, egg powder, soy sauce, fruit juice, etc.

Metal, metallurgy and mining: aluminum powder, lead powder, copper powder, ore, alloy powder, welding rod powder, manganese dioxide, electrolytic copper powder, electromagnetic materials, grinding powder, refractory materials, kaolin, lime, alumina, heavy calcium carbonate, quartz sand, etc.

3. Pollution treatment: waste oil, wastewater, dyeing and finishing wastewater, additives, activated carbon characteristics.

The vibration trajectory of the circular vibrating screen is different from that of the linear vibrating screen, which is not a linear motion but a circular motion, so it is called a circular vibrating screen. The circular vibrating screen is a mining equipment specially designed for quarry screening of material stone, and can also be used for product particle size classification in building materials, electric power, coal preparation, mining and chemical industries, or as screening equipment in sand and gravel production lines. It has the characteristics of large output, high quality, diverse models, advanced structure technology, high screening efficiency, easy installation and maintenance, and sturdy and durable.

The vibrating force of the circular vibrating screen is the inertia force that changes in the direction of the fixed axis in a positive manner, when the screen machine starts, the vibrator of the screen machine drives the screen box to move together, during which the sand and gravel smaller than the screen aperture falls into the lower layer of the screen machine through the screen hole, and the sand and gravel larger than the screen aperture is discharged by the discharge port after continuous beating, and finally completes the screening process.

1. The circular vibrating screen has high screening efficiency and large processing capacity.

2. The structure design of the circular vibrating screen is simple and the screen surface is convenient to disassemble and replace.

3. It has the advantages of energy saving and consumption reduction, and the vibrating screen consumes less electrical energy when screening materials.

4. A flexible coupling is used when the vibrating screen motor is connected with the exciter, which can improve the long service life of the equipment and reduce the impact force of the motor.

5. When the circular vibrating screen is working, the screen box vibrates strongly, which can reduce the phenomenon of materials blocking the sieve holes, so that the vibrating screen has high production efficiency and screening efficiency.

The circular vibrating screen is a single-shaft vibrator, and the spindle fixed on the screen box is driven by the motor to rotate at a speed, and the eccentric body installed on the spindle rotates accordingly, generating centrifugal inertia force, so that the screen box that can vibrate freely produces vibrations that approximate circular trajectory.

Circular vibration is suitable for the screening and grading of powder, granules and slurry materials; Its working principle is to use the high-frequency vibration of the sieve body to screen and classify the material, round sieve.

It is excited by vibration, and then the bouncing ball drives the material to jump up and down, so as to complete its screening process.

The motor drives the vibrating block to produce regular vibration force, and the screens the materials on the mesh through these regular vibration forces, and different vibration forces will produce different vibration effects. Each of them can be debugged. If you're using it yourself, I can teach you how to debug.

The circular vibrating screen uses motor vibration to move the physical projectile to the discharge port, so as to achieve the purpose of efficient screening.

The excitation force is generated by the vibrating motor and transmitted to the screen, so that the screen can shake up and down, left and right, and tilted, so as to better screen the thickness of the material on the screen.

The following points should be paid attention to in the installation of the screen of the linear vibrating screen?

1.Cutting of the screen: the width is consistent with the width of the grid, and the length is 50 70mm longer than the length of the grid;

2.The selection of the screen is very important, because the loading of the linear screen is relatively cumbersome, so the screen with a coarse wire diameter should be selected;

3.The tightness of the screen is the main factor affecting the screening, so the screen must be tightened.

4.Selection of screening mesh trawl: when the specific gravity of the screened material is heavier or the mesh number of the screen mesh is higher, the appropriate mesh trawl should be installed under the screen mesh according to the mesh of the screen, the purpose: to support the screening mesh and reduce the pressure of the material on the screening net.

5.Selection of clean net pinballs: add pinballs according to the difficulty of screening and the number of meshes of the materials; Do not blindly add pinballs;

6.After the grid is assembled into the screen box as required, the long screen should not be placed at the upper end of the discharge port;

7.The grid of each layer must have a strong elastic sponge skin as the seal of each layer, and pay more attention when the material has good fluidity or ultra-fine;

8.Flatness and tightness of the pressing plate: the pressing plate should be pressed evenly to ensure the flatness and fixation of the grid; The flatness of the grid directly affects the screening efficiency of the screen, and the compactness of the screen directly affects the service life of the screen and the mixing grade of the product.

9.Test the assembly status of the screen: open the upper cover of the screen, add a little material for the test machine to observe the distribution of the material, if the material is very evenly conveyed forward, it means that the flatness of the screen is intact; If the material is biased or goes to the ditch, it means that the flatness of the sieve is not good, and the flatness of the sieve is appropriately adjusted; Test the screened material, if there are obvious large particles in the material, it means that the sealing and compression of the screen are not good, adjust the compression and sealing;

1. The machine should be equipped with electrical protection devices.

2. At the beginning of the operation of this machine, check the anchor bolts at least once a day to prevent loosening.

3. When the rotation direction of the motor does not meet the requirements, the phase sequence of the power supply can be adjusted.

4. When the machine is used again after being stopped for a long time, the insulation resistance should be measured, which should be greater than the megohm for 500 volt megohmmeter measurement.

5. After the machine has been running for 1500 hours, the bearing should be checked and replaced immediately if there is serious damage.

6. The motor should be well lubricated, and the lithium grease (ZL-3) should be supplemented every two weeks or so, and an appropriate amount of lithium grease should be added through the oil cup when refueling. When sealed bearings are used, the motor is not fitted with an oil cup.