1. Selection according to material characteristics: Different materials require different types of vibrating screens. For the rotary vibrating screen, it can screen and remove impurities from 0-400 mesh powdery and granular materials. If it is used for filtering, it can filter materials below 600 mesh;
Requirements for use: The material is not viscous, has no static electricity, is not easy to agglomerate, and has uniform particles.

2. Selection according to production conditions: Different production environments also have an impact on the selection of rotary vibrating screens. Space requirements, installation location requirements, etc. can affect the size and output of the screen machine.

1. Calculation of spiral diameter:

In the formula, Q----conveying capacity, t/h;

K——material property coefficient;

ψ----filling factor;

C ---- tilt coefficient.

The diameter calculated by the above formula should be rounded up;

2. Calculation of screw shaft speed:

The screw shaft speed n cannot exceed a certain limit speed nj

In the formula, A----represents the material comprehensive coefficient;

The A value corresponds to the K value, and should be selected in groups during calculation.

3. Power calculation:

(1) Screw conveyor shaft power P0

H——the projected height of the screw conveyor on the vertical plane when it is inclined, m;

L - the horizontal projection length of the screw conveyor, m;

ω0----material resistance coefficient.

(2) Motor power

K1----power reserve coefficient, Y series motor K1=1.0;

η--the total efficiency of the driving device, generally 0.9-0.94.

Regular inspection: Before and after use every day, the conveyor should be inspected to check whether the appearance of the conveyor, transmission parts, support parts and electrical equipment are normal, and whether there are abnormal noises, etc., to avoid failures and accidents.

Regular lubrication: According to the frequency of use and working environment of the conveyor, use appropriate lubrication methods and lubricating grease to lubricate the bearings, gears, chains and other parts of the conveyor to ensure smooth operation and low noise of the conveyor.

Regular cleaning: According to the characteristics of the conveying materials and the use of the conveyor, the conveyor is regularly cleaned to remove dust, sundries, oil stains, etc. inside and outside the conveyor, so as to avoid affecting the operation of the conveyor and the quality of the conveying materials. Influence.

Everyone knows that whether it is a rotary vibrating screen or a linear vibrating screen, the most important thing when screening materials is the screen mesh. The screening of materials is controlled by the mesh size on the vibrating screen, and the effective selection of the mesh is the main factor in improving the efficiency of the vibrating screen! Today, the editor will organize how to reasonably select the screen mesh for the rotary vibrating screen. I hope the majority of users can be helpful.



1. The aperture of the rotary vibrating screen mesh refers to the size of the standard screen mesh, and the wire diameter of the screen mesh refers to the diameter of the woven metal wire.



2. Mesh size refers to the number of mesh holes in a length of 2.54 centimeters (1 inch), abbreviated as mesh size. For example, 80 mesh means that there are 80 holes per square inch, and 700 mesh means 700 holes. The higher the mesh count, the more holes there are. In addition to representing the mesh size of the sieve, it is also used to represent the particle size that can pass through the sieve. The higher the mesh size, the smaller the particle size.



3. The conversion method between mesh size and aperture micrometer of the sieve: Generally, in China, the grading system is based on the Taylor sieve system, with a 200 mesh mesh size of 0.074mm as the benchmark. The 100 mesh aperture is 200 * 0.074mm ÷ 100=0.148mm/325 mesh aperture is 200 * 0.074mm ÷ 325=0.045mm/.

4. The size of powder particles is called particle size. Due to the complex shape of particles, there are usually several representation methods, such as screening particle size, settling particle size, equivalent volume particle size, and equivalent surface area particle size. Sieve size refers to the size of the sieve holes through which particles can pass through the sieve, expressed as the number of sieve holes within a 1-inch (25.4mm) wide sieve. Therefore, it is called "mesh size". Currently, there is no unified technical standard for powder particle size at home and abroad, and each enterprise has its own definition and representation method for particle size. The specifications of screens in different countries and industries have different standards, so the meaning of "mesh" is also difficult to unify.

5. At present, the calculation diameter of equivalent volume particles is commonly used internationally to represent particle size. with μ Represented by m or mm.

6. The customer specifies the number of mesh sizes and has strict requirements or industry requirements that must comply with international standards. Customers are required to specify the corresponding mesh size. The mesh size is the only standard, but there are multiple options for mesh size.

Due to the inconsistency in the mesh size and aperture of the screening machine, users should choose the screening mesh based on the characteristics of their own materials. There is nothing absolute about choosing a sieve, we can only say that we can make the sieve machine and sieve match perfectly.

Rotary vibrating screens can be used for the separation, filtration, and screening of various materials, including solid particles, powders, and liquids. It is widely used in industries such as chemical, pharmaceutical, food, and environmental protection. Specifically, it can be used in the following areas:
1、 Material screening: The rotary vibrating screen can screen materials, select materials that meet the requirements, and remove impurities, foreign objects, etc.
2、 Grading and separation: The rotary vibrating screen can also perform grading and separation of materials. It can divide materials into different particle sizes to meet different production needs.
3、 Liquid filtration: Rotary vibrating screens can also be used for liquid filtration, especially suitable for high viscosity and liquid containing solid impurities.
4、 Screening after crushing: During the crushing or crushing process, particles that are too large or too small can affect the process efficiency. In this case, a rotary vibrating screen can be used for screening.
Due to its high efficiency, simplicity, ease of maintenance, and strong adaptability, rotary vibrating screens are widely used in industrial production lines. It can improve production efficiency, reduce labor costs, and also meet different production needs.

For example, adding calcium salt, blood supplement salt, iodized salt, and other trace elements to supplement people's body deficiencies, such as the commonly used iodized salt, which adds a certain amount of potassium iodide and potassium iodate to ordinary edible salt. So what vibrating screen is used for screening salt? Vibration screen manufacturers recommend using linear or rotary vibration screens for screening

Linear vibrating screen: The material is evenly fed from the feeding machine to the feeding port of the screening machine, and multiple layers of screens are used to form several products, as well as unqualified materials on and off the screen, which are discharged from different outlets. Can be used to maintain automation in the production line. It has the characteristics of low energy consumption, high efficiency, simple structure, convenient maintenance, and fully enclosed structure without dust pollution. Mainly used in industries such as plastics, abrasives, chemicals, pharmaceuticals, building materials, grain, food, carbon, fertilizers, etc.
Rotary vibrating screen: a three-dimensional rotary vibrating screen, which is excited by a vertical electric motor. Eccentric heavy hammers are installed at the upper and lower ends of the motor to convert the rotational power of the motor into horizontal, vertical, and inclined three-dimensional power. This power is then transmitted to the screen surface, allowing the material to perform external expansion and involute power on the screen surface. Therefore, this series of product vibrating screens is called rotary vibrating screens. The rotary vibrating screen has the advantages of long material operation trajectory and high screen surface utilization rate. By adjusting the phase angle of the heavy hammers at the upper and lower ends, the movement trajectory of the material on the screen surface can be changed. It can perform fine screening, probability screening, and other functions on the material.