Polyurethane screen, one of the screening equipment, needs to be able to transport the materials on the screen. In the process of movement, the materials on the screen will produce sliding friction force, rolling friction force, impact force, wear and corrosion, which can shorten the service life of the screen. Thus, the screen is required to be easy to disassemble and replace, wear-resistant, corrosion-resistant, impact-resistant and have a good quality of self-cleaning and long service lifetime. The polyurethane screen can meet the above or so needs.
1. inlay type
2. bolt connection
3. crimp connection
4. sieve-hook connection
The polyurethane elastic sieve plate adopts steel rope as the skeleton materials, coupled with the fact that polyurethane itself has a high elastic modulus, high strength absorption impact and high wear resistance, so it has a high tensile strength, whose carrying capacity is more than 2.5 times that of rubber sieve plate. Its service lifetime is 8-10 times higher than that of an ordinary metal sieve plate, 3 times that of heavy duty stainless steel screen and 3.9 times that of natural rubber, which is now the most wear-resistant screen material in the world. The product material of the polyurethane screen is a polymer organic elastomer, which has excellent wear resistance, flex resistance and carrying capacity. The production raw materials are specially treated to ensure that they won’t delaminate under long-term alternating loads.
The internal side of the sieve plate has self-cleaning performance with high screening efficiency while not blocking holes. Due to the strong water permeability of polyurethane screen mesh and the large cone angle of the sieve hole (140°), it can effectively prevent the adhesion of wet fine particles. Thus it fits for screening and grading wet fine particles and materials. Anpeng polyurethane screen adopts imported raw materials, and its elastomer and its own good tension performance can help effectively avoid blocking holes under dynamic conditions.
Polyurethane screens are professionally applied in hydropower stations, building materials and other metal beneficiation industries. The screening of various materials in the range of 0.1mm-170mm, whether dry sieve or wet sieve, does not affect the screening efficiency. Dehydration and deselection in the range of 0.5m-3mm, more fully show the superiority of polyurethane screen surface. The product is water-resistant, corrosion-resistant, aging-resistant, easy to replace and maintain. Polyurethane mesh density is small (1.32kg/m3), lighter than metal screen surface, can reduce production unit consumption, so it can adapt to the large-scale development requirements of the sieve machines.
The production craftwork of polyurethane screen adopts the method of mold casting molding with accurate pore size and high screening quality, and the particle size of the material screened from it can greatly meet the users' requirements. With simple installation and is easy to replace and overhaul, the product made by our wire mesh screen company fits for any type of screening machine, and the workload of on-the-spot installation, replacement or maintenance is largely reduced due to its lightweight.
According to the actual measurement, instead of using a metal sieve plate, the same screening machine which uses a polyurethane screen can reduce noise by 5-20 decibels. At the same time, it can significantly reduce dust flying to provide a quiet and clean working environment for the production site.