Screening surface of vibrating screen

The screen surface is the most important working part of the vibrating screen to withstand the sieved material and to complete the sieving process. The basic requirements of the screen surface are: have sufficient mechanical strength, the maximum opening rate (the total area of the screen mesh and the screen surface area ratio), the screen is not easy to be blocked, the material movement and the opportunity to meet with the screen many. The former requirements, affecting the service life of the screen surface, the latter three requirements related to the work of the sieve effect.
The screen surface should be fixed on the screen frame. Different sieve surface, fixed method is also different. Only the screen surface firmly fixed in the screen frame, in order to ensure the normal operation of the screen surface. Otherwise, not only cannot guarantee the screening effect, but also shorten the screen surface life.
Screen surface can be divided into plate-like screen surface, the preparation of the screen surface, the seam sieve surface, bar screen surface, non-metallic screen surface.
1. Plate-shaped screen surface referred to as sieve plate. It is one of the most solid sieve, mainly for large pieces of material screening. Plate-like surface of the material used more A3 and 16Mn, 16MnCr and other steel, steel plate thickness commonly used 6mm. According to the different working conditions, may be appropriate thickening or thinning.
2. The preparation of the screen is divided into metal mesh and mesh wire cloth two. There is no substantial difference between the two, are made of metal wire.
3. The seam surface is made of copper or stainless steel bar. Stainless steel strip surface than the copper screen surface price 2 to 3 times higher, but its strength, wear, life than the copper screen surface 2 to 3 times higher, and the work effect is good. Therefore, in order to reduce the maintenance workload, improve the screening effect, the usage of stainless steel strip sieve surface is more favorable.
4. Bar screen surface by the parallel arrangement of many steel bars. The size of the mesh on the screen surface is determined by the width of the gap between the bars.
5. Non-metallic screen surface materials are natural rubber, flexible plastic, and nylon and several other. It can not only save copper and stainless steel and other high-quality metal materials, and anti-wear, anti-breaking ability, long life, low noise, is the development of the screen surface.