Mining vibrating screens are important equipment in mining, coal, chemical industry, construction and other industries. They are mainly used for materials screening, grading and desilting operations. As the core component of the vibrating screen, the screen surface directly affects the screening efficiency, production capacity and material processing quality of the vibrating screen. Therefore, the rational selection of the screen surface is of great significance to improving the overall performance of the vibrating screen . This article will discuss in detail the key points of selection of the screen surface for mining vibrating screens from several aspects .

  1. Select elements for screening surfaces

  1. Screen hole size

  Screen hole size is a key factor in determining the screening particle size. The selection of screen hole size should be based on the maximum particle size of the material and the required product particle size. If the screen hole is too large, the fine-grained substances will not be able to pass through the screen hole. If the screen hole is too small, it may be blocked, affecting the screening efficiency. In practical applications, the appropriate screen hole size should be selected according to the material characteristics and process requirements.

  2. Mesh Mesh Mesh

  Mesh Mesh Density, that is, the number of mesh Mesh Mesh Mesh Mesh Mesh, refers to the number of sieve holes in the grid per inch. The higher the mesh number, the smaller the sieve hole and the smaller the particle size of the material passing through. The mesh selection of screen mesh mesh should be based on the requirements of the expected particle size range and screening efficiency of the screening product.

  3. Screen tension

  The tension of the screen has a great influence on the screening efficiency. Inadequate tension will cause the screen to relax, block the screen holes, and poor material layering effect; excessive tension will cause damage to the screen and shorten the service life. Therefore, it is very important to reasonably control the tension of the screen.

  2. Analysis of the material of the screen surface

  1. Metal Mesh

  Metal Mesh is one of the most commonly used screen surface materials, and is widely popular for its strong wear resistance, high temperature resistance and simple structure. Common metal screens include stainless steel, low carbon steel, aluminum alloy, etc. Metal screens are suitable for screening materials with higher hardness, but when facing corrosive media, their corrosion resistance is poor.

  2. The polyurethane

  polyurethane screen surface has good wear resistance and corrosion resistance, and is suitable for screening high hardness and high corrosion materials, such as certain chemical raw materials and metal ores. The polyurethane screen surface is soft, which can effectively reduce the friction between materials and the screen surface and reduce the noise and vibration of the vibrating screen.

    3. Special plastic

  Some screening surfaces made of special plastic materials, such as nylon, polycarbonate, etc., are also often used for screening of special materials. This type of screen surface material is lightweight, has good corrosion resistance and is relatively low in cost. It is suitable for screening lightweight and corrosive materials.