Vibrating screen is an indispensable auxiliary equipment in the sand and gravel production line, and the screening link is an important link in the process of producing machine-made sand. Through the screening of vibrating screen, the machine-made sand can be divided into sand and stone with different specifications and particle sizes. The screening effect of vibrating screen also affects the income of machine-made sand. However, during the operation of vibrating screen, there will be some factors affecting the screening efficiency of vibrating screen. Here is a detailed introduction:
1. Material properties.
01. Shape of screened material.
The shape of the screened material will affect the screening efficiency of the vibrating screen. If the shape of the material is spherical, it is easy to pass the screening; The strip, sheet or polygon materials are difficult to pass through the square hole or round hole vibrating screen, which will affect the screening efficiency of the vibrating screen.
02. Screening materials are easy to screen particles.
Easy sieving particles refer to the particles that are easy to pass through the screen of the vibrating screen. The screened materials contain easy sieving particles and blocking particles. The blocking particles are easy to block the screen holes and affect the screening efficiency of the vibrating screen. Therefore, the higher the content of easily screened particles in the screened materials, the higher the screening efficiency of the vibrating screen.
03. Moisture content of screened material.
The higher the water content of the screened material, the stronger its adhesion. Therefore, it is easy to agglomerate, resulting in the blockage of the screen hole of the vibrating screen and reducing the screening efficiency of the vibrating screen. Therefore, the materials with high moisture content can be dried before screening to reduce the moisture content of the materials.
2. Properties of sieve surface.
01. Vibrating screen hole shape.
Different shapes of screen holes have different screening capacity. Therefore, when selecting screen holes, pay attention to the particle shape of screening materials and select the appropriate screen hole shape.
02. Opening rate of vibrating screen.
The opening rate is the ratio of the screen area to the screen surface area. The larger the opening rate, the higher the screening efficiency and the stronger the production capacity, but it also has the disadvantages of short service life and low strength.
03. Size of vibrating screen surface.
The length ratio of the vibrating screen should be between 2.5 ~ 3. If the length width ratio is too large or too small, it will affect the screening efficiency of the vibrating screen.
04. Inclination angle of vibrating screen surface.
The inclination angle of the vibrating screen is generally 0 ~ 25 °. If the inclination angle is too large, it will affect the screening efficiency of the vibrating screen. If the inclination angle is too small, it will affect the production capacity of the vibrating point. Therefore, the inclination angle should be between the appropriate angles.
The above introduces two factors affecting the screening efficiency of vibrating screen, mainly materials and vibrating screen. Users can pay attention to the above two points when using vibrating screen equipment.
