Currently available types of high temperature filter cloth more, their temperature resistance, chemical resistance, mechanical strength, price and other large gaps, so the choice should be based on the use of the working conditions, reasonable and appropriate selection, Now their main temperature, chemical and physical properties introduced later.
1) Aramid fiber (meta-aramid 1313, the United States said Nomex Namex, Japan said Conex): aramid fiber acid and alkali resistance, tensile strength, anti-wear, good anti-bending, good flame retardant , Aramid filter for gas-solid separation under high temperature, the use of temperature in the range of 180 ~ 240 ℃, powder mill and aluminum powder plant and other industrial filtration can be widely used.
High temperature filter fiber
2) Polyethylene diamine fiber (Kermel Kermel) is an aromatic polyamine series of ammonium amine fiber, suitable for operating temperature between 160 ~ 240 °, fiber strength, good toughness, high tensile strength, resistance High mechanical pressure capability, chemical stability, with a high degree of acid-resistant chemical corrosion resistance. Filter suitable for a variety of high-temperature gas filtration, used in steel, cement, garbage incinerators and other fields.
3) PPS fiber (PPS, Ryton Ryton) The fiber mechanical properties: tensile, abrasion resistance, excellent flexural properties, moisture absorption under high temperature and dimensional stability, good flame retardant properties (oxygen limit index of 34 to 35) Good chemical resistance, filter for high temperature coal-fired boiler bag filter, due to the fiber has excellent corrosion resistance, chemical and other fields have been applied, the weakness of the fiber is poor oxidation resistance. The fiber filter made of the use of temperature in the range of 170 ~ 190 ℃, short-term use of temperature up to 220 ℃, the current domestic coal-fired boiler power plant dust and garbage flue gas dust and other aspects of the application.
4) Polyimide fiber (called P-84) is an excellent high temperature resistant, radiation resistant and high performance fiber. The continuous use temperature is in the range of 260 ~ 300 ℃. The fiber is excellent in thermal stability. At 300 ℃ It will not shrink. It has excellent chemical properties, excellent resistance to organic solvents and good acid resistance. Due to the high cost and small dosage of fiber in the manufacture of high temperature filter media, the fiber has a good application prospect as a liquid filter material.
5) Polytetrafluoroethylene fiber (called PTFE): It is one of the best high temperature resistant and chemical resistant high performance fibers with the best electrical insulation and flame retardance at high temperature. Its industrial use Wide range of filters made of PTFE can be used in high temperature and chemical corrosion environment, continuous use temperature in the range of 220 ~ 260 ℃, filter used in high temperature gas, waste incineration power plant flue gas dust and chemical Filtration in the field.
6) polysulfone amide fiber (called PSF PSA fiber): with excellent insulation, heat resistance, good flame retardancy, good radiation resistance, filter bag made of polysulfone fiber bag filter , Not only has good heat resistance, but also has excellent resistance to thermal aging stability, at 270 ℃, but also maintain good dimensional stability, the filter can be used as a temperature of 200 ~ 250 ℃ flue gas filtration Bag, titanium dioxide dust filter bag, alumina powder drying filtrate, smelter rare metal recovery filter bag, filtration efficiency up to 97% ~ 99%, and easy operation and durability, is an ideal filter material.
7) Other: inorganic fiberglass filter mat is also a high temperature filter material, high temperature in the range of 200 ~ 260 ℃, widely used in the cement industry bag filter. Basalt fiber (CBF); also recently developed inorganic high temperature fiber, the use of temperature range of 300 ~ 450 ℃, the filter material applications have good market prospects, silicon fiber, ceramic fiber high temperature than the average inorganic fiber , Can be used in special high temperature field. The stainless steel fiber filter made of stainless steel fiber is used in the field of filtration with special requirements for filtration temperature and the filtration equipment. The stainless steel fiber filter felt is used as the filter material, the temperature is in the range of 400-500 ℃, and the fiber mechanics Performance and chemical stability are good.
In water treatment, desalination, the use of ion exchange fibers, but also to the development of high-tech filtration technology needed for the development of new high-tech fiber materials used in filtration.
浙江天台丰顿滤料有限公司是一家专业从事：液体过滤袋、工业滤布、滤布、滤袋、除尘袋生产销售的滤布厂家，多年来在液体过滤袋、滤袋、工业滤布、除尘袋生产上积累了丰富的经验和领先的技术。
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