Industry News
Types of polyurethane elastomer screen plates
The main component of the mineral vibrating screen, the screen should be matched according to material types, such as granite, limestone and many other mineral types and categories. At present, there are mainly the following types of polyurethane screens at home and abroad.
1 heavy duty vertical rib screen plate
The rough breaking of mines is very important. The diameter of the material is more than 200~300mm. Domestic vibrating screens for mining are generally welded screen plates with rails, but they have large weight, which can easily cause the beams of mining vibrating screens to break, difficult to maintain, easy to block holes, high noise, and low efficiency. The heavy-duty screening plate of vertical rib polyurethane screen is used. The material is prone to layering in an instant. One layer of screening plate acts as two layers of mesh. For example, the screening plate with a hole diameter of 100mm x 100mm will appear when the material enters the screen. Materials with a diameter of 0~100mm are instantly placed under the trough-shaped screening, while materials with a diameter of more than 100mm are instantly mounted by the vertical ribs on both sides, and quickly return and circulate and break, so as to ensure that large blocks of ore will not cause impact and wear to the screen mold ribs, achieving the effect of high sieving efficiency, low noise, low production cost and low equipment load on the screen.
2 tightening polyurethane screen (European network)
The tightening polyurethane screen adds wire ropes inside the screen. This screen is lightweight, easy to install, and has good tightening procedures. During installation, the screen can be adjusted to form two arc surfaces, so that the material is prone to flow on both sides at the blanking end, the movement speed of the material is reduced, and the screening efficiency is improved. Since it is a built-in wire rope screen, the surface of the screen will bounce by the vibration frequency and amplitude of the vibrating screen, causing the material to jump on the screen, the probability of finding holes increases, and has good bending resistance. It is a very ideal screen material.
3-plate skeleton polyurethane screen
Polyester screen for limestone
This screen is a plate screen. The screen is a cast-type screen with steel frame welding as the process. The processing screen has a small area and weak bending resistance. It can be suitable for all types of supporting facilities, with a hole diameter ranging from 0.1~100mm (the screen area is small, and then connected by cast-type elastomer, which is suitable for use in the sand making industry).
4TPU hot melt screen
TPU hot melt screen is a high-hole preferred screen developed by Japan with TPU as raw material. It is suitable for intermediate material screening with a hole diameter of 3~40mm. It has the characteristics of non-stick material, non-blocking holes, superior weight and self-cleaning performance. Its service life is 8~10 times that of steel wire braided mesh.
5 Fine Screen
The hole diameter of the fine screen mesh is 0.1mm, the spacing between the ribs is 0.1mm, the pore rate is as high as more than 32%, the total thickness is 1.5mm, and the thickness of the pore area is 0.2mm, which can improve metal recovery, save a lot of resources, and protect the environment. Since fine screens can solve the shortcomings of my country's current ore dressing technology, they solve the problems of hole blocking, ore leakage, short screen life, frequent replacement, and seriously affecting the normal production and operation of incoming particle size, reducing maintenance workload, solving the problems of high operating costs, serious over-grinding of some ores, and mudification of some ores after over-grinding, increasing grinding power consumption, and affecting flotation effect, comprehensive recovery rate and iron quality.