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English name of slit screen: (rr)
English name of slit screen: (rr), Definition: The screen surface is composed of wedge-shaped sieve bars A fixed sieve. The mesh opening [slit width] is generally not exceeded. Applied disciplines: Coal Science and Technology (first-level discipline Mining Mechanical Engineering (second-level discipline Coal Preparation Machinery (second-level discipline)). The slit screen surface is made into a plate structure, and the slit screen surface is arranged by trapezoidal cross-section strips. The slits are small, usually ~.
Slit screen material: stainless steel, manganese steel, high carbon steel, low carbon steel wire, high manganese steel wire, polyurethane. Slit screen structure, mesh cross-section is trapezoidal . The gap is narrow at the top and wide at the bottom. It is a screen bar made of cold-rolled stainless steel wire, and the support bar is welded by automatic mine screen production equipment.
Easy to leak, wear-resistant and corrosion-resistant, screen seams Uniform, stable welding quality, high porosity, long service life, high strength, stiffness and load-bearing capacity, it can be made into various shapes of rigid screening and filtering devices. It is widely used in mining, coal, petroleum, chemical fertilizers, food, salt, environmental protection, etc. Industry. Screening of liquids, powders and other materials. Petroleum, chemical industry, metallurgy, mining, pharmaceutical purification, drilling fluid purification, etc.
Polyurethane slit screen: mainly used in metallurgy, non-ferrous yellow coal, chemical industry, building materials and Washing, grading, dewatering, desliming and deslaging of materials in hydropower engineering abrasives and other industries. New structural model screen plates with various format specifications and screen hole sizes are especially suitable for occasions with high impact hardness and high wear resistance requirements. In Wear-resistant screen plates are used for fine crushing and screening of raw coal in iron ore, grading of gold, building materials, and screening of sand and gravel in hydropower and nuclear power projects. Products processed from polyurethane elastomers have been used in mining enterprises such as military, steel, coal mines, power plants, textile machinery, and wood It has been widely used in processing industries such as grain processing, electronic instrumentation, papermaking, printing, dyeing, and iron printing.
Function and characteristics: good wear resistance, long service life, twice that of stainless steel screen plates. Good moisture and water resistance. Non-stick minerals do not block holes and have high screening efficiency and high opening rate.
The polyurethane slit screen plate makes full use of the excellent wear resistance of polyurethane elastomer and its high strength in a wide hardness range. High elongation and elasticity, good shock absorption performance, oil resistance, low temperature resistance, heat aging resistance, radiation resistance, electrical insulation and other properties, coupled with its reasonable mesh structure and installation structure design, make the polyurethane screen plate have the following characteristics :
It has good wear resistance and long service life. Its wear resistance is ~ times that of steel screen plates and more than times that of ordinary rubber screen plates.
Maintenance work The quantity is small, the polyurethane screen plate is not easy to be damaged and has a long service life, so it can greatly reduce the amount of maintenance and the loss of production shutdown.
The total cost is low, although the polyurethane screen plate of the same specification (area) is larger than the stainless steel screen plate The one-time investment is high (about 10 times), but because the life of the polyurethane screen plate is ~ times that of the stainless steel screen plate, and the number of repairs and replacements is less, the total cost is not high and it is economically very cost-effective.
It has good moisture resistance and can work with water as the medium. In the case of water, oil and other media, the friction coefficient between polyurethane and materials is reduced, which is more conducive to screening, improves screening efficiency, and can avoid the loss of wet particles. Adhesion, and at the same time due to the lower friction coefficient, the wear is reduced and the service life is increased.
Corrosion-resistant, non-flammable, non-toxic and odorless.
Due to the reasonable design of the sieve holes and the unique manufacturing process of the sieve plate, particles of extreme sizes will not block the sieve holes.
It has good vibration absorption performance and strong silencing ability, which can reduce noise and make the objects on the screen less likely to break during the vibration process.
Due to the characteristics of secondary vibration of polyurethane, the polyurethane screen plate has a self-cleaning effect, so the screening efficiency is high.
Save energy and reduce consumption. Polyurethane has a small specific gravity and is much lighter than a steel screen of the same size, thus reducing the load on the screen machine, saving power consumption, and extending the life of the screen machine.
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