The filter cloth mainly includes: polyester filter cloth, polypropylene filter cloth, nylon filter cloth, and violin filter cloth. Filter cloth material properties: acid, weak alkali. Abrasion resistance, corrosion resistance, recovery, and poor electrical conductivity. The temperature resistance of polyester fiber is generally 130---150 °C. This product has the unique advantages of ordinary felt filter cloth, and it has very good wear resistance and high cost performance. It is the most used in felt filter material. Variety.
1, polyester filter cloth
Divided into polyester long fiber filter cloth, polyester staple fiber filter cloth.
Heat resistance: 120 ° C, elongation at break (%): 20-50, breaking strength (g/d): 438, melting point (°C): 238·240, melting point (°C): 255 to 260. Proportion: 1.38. Filtration performance: The raw material structure of polyester short fiber filter cloth is short and hairy, the fabric weaved is dense, the particle retention is good, but the peeling property and the gas permeability are poor. Strength wear resistance, water leakage is not as good as polyester long fiber filter cloth.
Uses: pharmaceutical, sugar, food, chemical, metallurgy, industrial filter press, centrifuge, etc.
Polyester long fiber filter cloth material properties: acid, weak alkali. Abrasion resistance, corrosion resistance, recovery, and poor electrical conductivity. The temperature resistance of polyester fiber is generally 130---150 °C. This product has the unique advantages of ordinary felt filter cloth, and it has very good wear resistance and high cost performance. It is the most used in felt filter material. Variety. Heat resistance: 120 ° C, elongation at break (%): 20-50, breaking strength (g/d): 438, softening point (°C): 238-240, melting point (°C): 255-260. Proportion: 1.38. Filtration performance: Polyester long-fiber filter cloth has smooth surface, good wear resistance and high strength. After being assembled, the strength is higher and wear resistance is better, so the fabric has good air permeability, quick water leakage and convenient cleaning. Uses: pharmaceutical, food, chemical, metallurgy, industrial filter press, centrifuge filter cloth, etc.
2, nylon filter cloth
The nylon fiber has a high strength and a strength of 4 to 5.3 Cndtex. The elongation is 18% to 45%. At 10% elongation, the elastic composite ratio is above 90%. The strength of nylon is the strongest in the fiber. According to the measurement, the abrasion resistance of nylon fiber is 10 times that of cotton fiber and 50 times that of glue. Wear resistance is the first of a variety of fibers, so pressing with rubber is an ideal material for the manufacture of automotive tires. Nylon fiber is resistant to strong alkali and weak acid. After treatment with NaoH (10%) at 95 ° C for 16 hours, the strength loss is negligible, but nylon is not light-resistant, easy to change color and brittle, so nylon fabric should not be exposed to sunlight for a long time. Nylon 66 can not be used in pharmaceutical, food manufacturers because it is toxic and harmful to human health.
Uses: rubber, ceramics, pharmaceutical, food, metallurgy, etc. Product model: 30l, 407, 663, 17-2, 17-7.
3, polypropylene filter cloth
Filter cloth classification: polypropylene staple fiber filter cloth; polypropylene long fiber filter cloth.
Filtration performance: polypropylene short fiber, short fiber, spun yarn ribbon hair; polypropylene long fiber, long fiber, smooth yarn, so industrial fabric made of polypropylene staple fiber, cloth with hair, powder filtration and pressure The filtration effect is better than that of long fibers. The industrial fabric made of polypropylene long fiber woven fabric has smooth cloth surface and good air permeability.
4, Weilun filter cloth
Performance: The chemical name of the vinylon filter is called polyvinyl alcohol. Its strength is lower than that of polyester, and its strength is only 3.52-5.72Cndtex. The elongation at break is 12% to 25%. The elasticity is poor, the fabric retains the shape, the wear resistance is good, and the durability is 1-2 times that of the pure cotton. But one of the biggest advantages is that it can withstand the action of strong alkali, and it has good hygroscopicity and is easy to combine with rubber. It is a good material used in the rubber industry. Its disadvantage is that it has low temperature resistance and the temperature reaches 100 °C. It has shrinkage and is not resistant to acidity. Uses: Used in manufacturers with strong alkalinity and rubber industry. Product model: 295-1, 295-102, 295-104, 295-105, 295-107, 295-114, 295-1 (A)
Used for solid-liquid separation, gas-solid separation; gas-solid separation application field iron and steel plant, steel mill, ferroalloy plant, refractory plant, foundry, power plant and other flue gas treatment dust removal system. Flue gas filtration of waste incinerators, coal-fired boilers, fluidized bed boilers, etc. Asphalt concrete mixing, building materials, cement ceramics, lime, gypsum and other production sites. Smelting flue gas filtration of aluminum electrolysis, lead, tin, zinc, copper and other rare metals, fine material recovery, liquid and solid separation. Liquid-solid separation and fine material recovery in the fields of chemical industry, coke, carbon black, dyes, pharmaceuticals and plastics. Dust management and purification collection for mining, food processing, flour, electronics, wood processing, etc.
Solid-liquid separation application field
Food and Beverage: Process purification and aseptic processing of food additives such as beer, wine, fruit wine, sake, liquor, rice wine, juice, bottled water, tea beverage, soy milk, and MSG. Bioengineering and medicine: Infusion (LVP and SVP) pharmaceutical water, process gas, biological product plasma serum, various pharmaceutical intermediates, pharmaceutical raw materials, solvent filtration, fermenter intake and exhaust sterilization filtration. Petrochemical and chemical industry: separation and recovery of lubricating oil, aviation coal and various oils, catalysts, viscose, polymers, resins, hydrogen peroxide, valuable chemical intermediates and chemical products. Automobile manufacturing: electrophoretic paint, pretreatment liquid, top coat, ultrafiltration water, engine crankshaft manufacturing coolant, vehicle spray water, paint process gas and spray booth gas purification. Oil and natural gas: separation and purification of natural gas and refinery, CNG filtration at gas station, desulfurization of amine liquid and dehydration solvent filtration, oilfield water injection and completion, workover, acidified liquid filtration. Electronics and plating: integrated circuits, picture tubes, liquid crystal displays, photoresists, optical disks, plating solutions, process gas purification and purification gas filtration. Coatings, paints and inks: latex paints, paint materials and solvent filtration, printing inks, printing inks and additive filtration.
5, monofilament filter cloth
Monofilament filter cloth is made of various monofilaments (commonly known as healds) and is divided into four categories: polyester, nylon, polypropylene and ethylene. They have the physical and chemical properties of various synthetic fibers, and the fabric is heat-shrinked and calendered. The product has the advantages of high filtration efficiency, easy to remove cake, easy to clean, high strength and long service life. It is a new generation of filter materials. Among them, 12870 is a new type of filter cloth specially developed by our factory, which has superior performance. The fabrics can be made of different materials, different specifications and different organizational structures to form various monofilament filter cloths with different filtration performance and appearance, which can meet the filtration requirements of filtration accuracy above 0.005μm. It is widely used in equipment for solid-liquid separation such as plate and frame pressure filtration, belt filtration, disc, and vertical plate filtration in non-ferrous metal smelting, chemical, coal, food and other industries.