The vibrating screen is an essential piece of equipment in the mining industry, but users who have used the vibrating screen know that there is no major problem with the vibrating screen, but the screen mesh of the vibrating screen needs to be replaced frequently. The material of the vibrating screen is divided into metal and non-metal. Metal screens include stainless steel screens, high carbon steel screens, low carbon steel screens, manganese steel screens, spring steel screens, etc. Non-metallic screens include nylon screens, rubber screens, and polyurethane screens.
1. Wire braided mesh
This kind of screen has relatively low cost and high flexibility. It is woven with metal wire. The screen holes are mostly square and fixed in shape, but the aperture is relatively low, about 0.02-2.36mm, and the mesh is easy to deform after long-term use. , It is mostly used in vibrating screens with large industrial output.
2. Punching plate screen
The sieve holes of the punched plate screen are round or square, and a punching machine is used to punch holes of the same size on the whole steel plate to form a screen. The punching plate screen is characterized by uniform mesh, not easy to deform, and the accuracy of the mesh is above 0.2mm. It is mostly used in the work of materials with a large impact on the screen or the detection of large particles in the laboratory.
3. 201 carbon steel screen
Although the cost of 201 carbon steel screen is very low, it is not common in actual use. Although it has a certain corrosion resistance, the wear resistance is not good enough, the nickel content is relatively small, the material is hard, and it is easy to break.
4. Stainless steel mesh
Stainless steel mesh is very common in use, not only in industry, but also in some corrosive work. The stainless steel material has good corrosion resistance, high temperature resistance and wear resistance, and can be used in various scenarios.
5. High manganese steel screen
The material of high manganese steel has strong wear resistance and toughness. Such a screen has a large bearing capacity, high strength, and is more wear-resistant. The service life can reach 4-8 times that of ordinary vibrating screens. , The choice of large-volume materials.
6. Non-metal mesh
Among non-metallic screens, polyurethane is more common. Polyurethane itself has very good elasticity, wear resistance, high tensile strength, and good impact absorption effect, so the polyurethane screen has a high bearing capacity, which is more than 2.5 times that of rubber screens, and its service life is 8 times that of ordinary metal screens. -10 times, 3 times that of stainless steel screens, 3.9 times that of natural rubber screens, the ability is outstanding among screens of various materials, and screens of other materials can only be caught up in the dust.
When choosing a vibrating screen, besides the material of the screen, other factors should also be considered. The first is the opening ratio. The opening ratio of the screen is an important parameter for the quality of the bright screen surface. The higher the opening ratio, the larger the effective area of the screen surface. The second is the shape of the screen, which has bar shape, punching type, sieve shape, braided type, wave shape, etc. For materials of different shapes, the pass rate of different shapes of sieve holes is different, so when choosing the shape of the sieve hole Pay attention to the shape of the material.
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