1、 Overview of Polyurethane Screen Plate Products:

　　Compared with other sieve plates, polyurethane sieve plates have the advantages of high porosity, light weight, good shock absorption, low noise, and good wear resistance. The introduction of manufacturing technology for this product fills a gap in China, with product quality at an international level. The product has a reasonable structure, easy installation, and advanced manufacturing technology. Compared with similar imported products, it has outstanding price advantages and provides a good way for domestic users who use imported equipment to localize their products.

　　Xingda Vibration Machinery Co., Ltd. produces various specifications of polyurethane screen mesh series.

　　Polyurethane screen plate is a type of polymer screen plate that has excellent wear resistance, oil resistance, hydrolysis resistance, bacterial resistance, and aging resistance.

　　This sieve plate not only significantly reduces equipment weight, lowers equipment costs, and extends service life, but also reduces noise. It is widely used in vibrating screen washing and grading operations in industries such as mining, metallurgy, coal, coke, coal washing, petroleum, and chemical. The shapes of the holes in the polyurethane sieve plate include comb teeth, square holes, long holes, round holes, and slit type. The grading particle size of the material is 0.2-80mm.

　　2、 Characteristics of polyurethane sieve plate:

　　1. The service life of polyurethane mesh with high wear resistance is 3-10 years longer than that of metal wire mesh, which improves the operating rate and increases economic benefits.

　　2. Unique structure, suitable elasticity and elastic force, can not only squeeze blocked materials through or escape the sieve holes, becoming undersized or undersized products, but also prevent fine-grained materials from adhering due to the secondary high-frequency vibration of the sieve strip Significantly reduced clogging and cleaned the surface of the product Improved screening efficiency.

　　3. Polyurethane mesh effectively absorbs impact, reduces noise, and improves the working environment.

　　4. Horizontal tension, light weight, good flexibility, easy installation and disassembly, easy transportation and storage.

　　The new polyurethane screen plate adopts a new production process, with a novel product structure and easy installation and disassembly. It has been widely used in various fields such as oil fields, mines, building materials, nuclear power, and coal.

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022026-02
Cleaning knowledge about swing screening machine - flat rotary screen
　　Swing screen, also known as swing vibrating screen, is a screening equipment that imitates manual screening actions. This series of equipment has good screening effect on cylindrical, elongated, and irregularly shaped materials without damaging the characteristics and shape of the materials themselves, meeting the requirements of modern people for screening materials: high efficiency and high precision. At present, swing screens are widely used in industries such as chemistry, food, medicine, and fertilizers.　　Do not stack any other debris around the swing screen machine, and the surrounding environment should also be kept clean. The price of the MSG swing screen should not be contaminated with other dust as much as possible to avoid the influence of other debris and prevent inaccurate screening of grains after screening. Before starting up and using the swing screen, it is necessary to check whether there are any debris in the machine compartment. The price of the glass bead swing screen should be cleaned to prevent different debris from mixing together and affecting the accurate screening of grains.　　Swing screens can be cleaned using bouncing balls, which is simple to use and easy to maintain. It is suitable for most granular materials, and ultrasonic cleaning is also a widely used cleaning method. It not only cleans the screen mesh, but also significantly improves production capacity. Suitable for most fine, high-yield, and difficult to screen materials, it improves work efficiency and time.　　Overall, China's swing vibration equipment is constantly improving and upgrading, and the market is showing a thriving trend. In the context of the continuous expansion of the food and drug market, domestic vibrating screen equipment should strengthen innovative technology, integrate market requirements, seize industry trends, and continuously meet the needs of more industries.
022026-02
Common faults and corresponding solutions of drum screen
　　Drum screen is a specialized screening equipment developed for industries such as building materials, metallurgy, chemical engineering, and mining. It overcomes the blockage problem of circular vibrating screens and linear vibrating screens when screening wet materials, improves the output and reliability of screening systems, and is widely used in sand and gravel separation in sand and gravel fields, as well as in size grading and block powder separation in chemical and mineral processing industries. It is highly favored by customers.　　Drum screen is a relatively large processing equipment in screening equipment. Although it does not have the complex structure of magnetic separators, sorting machines, etc., it has a large processing capacity during use. Therefore, some mechanical failures are inevitable during long-term use. The following are several important and easy to occur failures, and corresponding solutions are provided. We hope it can help you.　　1. Noise problem caused by loose equipment bolts　　Solution: Re tighten the bolts or other fasteners;　　2. Wrong rotation direction caused by incorrect connection of motor power cable　　Solution: Replace the power cable in the junction box;　　3. Delayed clicking start caused by motor overload or excessive conveying capacity　　Solution: Adjust the conveying capacity again;　　4. Insufficient ventilation or lack of lubricant inside the gearbox leads to overheating issues　　Solution: Check and adjust the ventilation vent for heat dissipation and add lubricant;　　5. Electric motor heating problem　　resolvent:　　(1) Clean the heat sink of the electric motor;　　(2) Check if the fan impeller is working properly and ensure smooth air circulation;　　(3) Reduce load;　　(4) Tighten the connection;　　(5) Check and rewire.　　6. Blocked sieve holes prevent the drum screen from functioning properly　　Solution: Clean up the clogged garbage in the sieve holes in a timely manner to reduce blockage.
022026-02
Internal factors causing noise in screening machines
　　1. Noise source　　The noise mainly comes from the operation of gears and rolling bearings. The main source of gear noise is gear collision caused by manufacturing errors such as smooth contact. The noise radiated through the shell to the connected structure also promotes the total sound power to be increased at resonance frequency, especially for large diameter gears, whose noise pollution is more serious.　　The noise of rolling bearings is often caused by the impact of the rolling elements in the raceway and the impact and vibration of the retainer inside the bearing. Therefore, it is related to the stiffness and smoothness of the vibrator shaft.　　2. Diffusion　　Resonance diffusion. Due to resonance between the frequency of the noise source and the vibration noise caused by the excitation of the screen, crossbeam, pipe, etc. In addition, resonance occurs when the natural frequency of the component is a multiple of the operating frequency of the sieve. It can be said that there must be resonance phenomenon in the center where strong noise is generated by the mechanical vibrating screen. Related to area. The diffusion noise is proportional to the area. From the characteristics of acoustics, it is difficult for low-frequency sounds to form noise without large-scale vibrations. Therefore, many inherent vibrations of large-scale vibrations are fundamentally in the low-frequency region. From this, it can be seen that there is a relative relationship between the area of the vibrating body and the generation of noise. The sieve, as a vibrating body, generates low-frequency noise due to the large-scale vibration of components such as the sieve plate and frame.　　3. Connect　　Poor connection (looseness) can cause impact, such as the screen frame and screen mesh colliding and the screen body components becoming loose. Due to rigid connections, there is significant noise.
022026-02
Eight precautions for using air flow screens for grading
　　1. Customers using air flow screens should carefully read the product manual before using the equipment. If they have any questions about the content introduced in the manual, they should contact our company for consultation and clarification in a timely manner.　　2. If a vibration exciter is selected, it should be inspected every six months, lubricating oil should be added regularly, and the connection parts should be checked regularly for tightness.　　3. Careful cleaning work should be done before and after daily homework, and attention should be paid to maintaining uninterrupted lubrication, fastening, and corrosion prevention of equipment throughout.　　4. The equipment should be equipped with grounding wires and regularly inspected for grounding wires, power switches, cables, and other electrical components to ensure that they are in good working condition. If aging or wear occurs, they should be replaced in a timely manner.　　5. The main unit, motor, and fan of the airflow screening machine should be checked regularly, lubricating oil should be added regularly, and dust inside the motor should be cleaned. It should be ensured that they are thoroughly inspected once a year.　　6. The screen mesh of the airflow screening machine should be checked regularly, and any damage should be replaced in a timely manner to ensure even tension of the screen mesh.　　7. Pay attention to maintaining the condition of the electrical control box and try to avoid dust falling in, otherwise it may cause electrical components to malfunction or short circuit.　　8. It is recommended that customers establish a comprehensive daily maintenance plan for the airflow screening machine and adhere to it.