Vibrating screen is a kind of very important auxiliary equipment in crushing plants. The screening efficiency of vibrating screen has important influence on the further processing. So knowing the factors affect vibrating screen working efficiency and knowing how to improve the efficiency of vibrating screen means a lot. Here, we focus on the factors affect vibrating screen working efficiency.
The working efficiency of vibrating screen is related with various factors, which includes the raw material properties, structural parameters of screen deck, motion parameters of vibrating screen etc.
Raw material properties are the important factor affects the working efficiency of vibrating screen. In the production process of vibrating screen, the screen mesh is easily blocked, making the effective screening area reduces, so does the working efficiency. The block of screen mesh is related with the component type of raw material, density of raw material and the size of raw material and so on.
1. Type And Size Of Raw Material
Different types of raw materials have different physical properties. The type of raw material can be divided into friability and viscosity. The adhesive raw material may easily form dense adhesion, blocking the screen mesh and reducing the efficiency. But for brittle material, the working efficiency of vibrating screen can be assured. Also, the particle shape of raw material will also affect the efficiency of vibrating screen. Cubical and spheriform particles are easier to go through the screen mesh while the flaky particles are easy to stock in the screen mesh.
2. Density Of Raw Material
Generally, the raw materials are layered and screened according to their sizes. In other words, the density of raw material directly affects the production capacity of vibrating screen. Particles with large density can easily go through the screen mesh, so the working efficiency is also high. On the contrary, particles with small density or powders are difficult to go through the screen mesh, so the working efficiency is also low.
3. Moisture Content Of Raw Material
If the raw material has high moisture content, they will easily form adhesion. Besides, in the vibrating process, the particles squeeze each other, making the adhesion more dense, which will increase the resistance of raw material movement. In this case, it will be difficult for the raw materials to go through the screen mesh. Also, the adhesion of raw material will reduce the size of screen mesh, making it easy to be blocked, reducing the effective screen area. Some raw materials with high moisture content even cannot be screened. So when the raw material contains much moisture, we should do some measures to deal with it, such as adopt a dryer to dry the raw material etc.