Types and many uses of environmentally friendly filter cloth
Many people still don’t know much about environmental protection filter cloth. I will give you a brief introduction today, hoping to help you
Types and uses of filter cloth
The filter cloth is resistant to acid and weak alkali. Wear resistance, corrosion resistance and other properties. Among them, the temperature resistance of polyester fibers is generally 130---150°C. Next, the editor will introduce to you the types and uses of filter cloth.
Polyester filter cloth
Divided into polyester filament filter cloth, polyester staple fiber filter cloth.
Heat resistance: 120℃, breaking elongation (%): 20-50, breaking strength (g/d): 438, melting point (℃): 238·240, melting point (℃): 255-260. Specific gravity: 1.38. Filtration performance: The raw material structure of polyester staple fiber filter cloth is short and wooly, and the woven fabric is dense, with good particle retention, but poor peeling and air permeability. Strength and wear resistance, water leakage is not as good as polyester filament filter cloth.
Uses: pharmaceutical, sugar, food, chemical, metallurgy, industrial filter press, centrifuge, etc.
Polyester filament filter cloth material properties: acid resistance, weak alkali resistance. It has good abrasion resistance, corrosion resistance and recovery properties, and poor electrical conductivity. The temperature resistance of polyester fiber is generally 130---150℃. This product has the advantages of ordinary felt filter cloth, and has very good abrasion resistance. It has a high cost performance and becomes a large amount of felt filter materials. Variety. Heat resistance: 120℃, breaking elongation (%): 20-50, breaking strength (g/d): 438, softening point (℃): 238-240, melting point (℃): 255-260. Specific gravity: 1.38. Filtration performance: The polyester filament filter cloth has a smooth surface, good abrasion resistance, and high strength. After twisting, it has higher strength and better abrasion resistance, so the fabric has good air permeability, fast water leakage and easy cleaning. Uses: pharmaceutical, food, chemical, metallurgy, industrial filter press, centrifuge filter cloth, etc.
Nylon filter cloth
Nylon fiber has high strength, the strength is 4-5.3 Cndtex. The elongation rate is 18%-45%. At 10% elongation, the resilience rate is above 90%. The strength of nylon is relatively strong among fibers. According to measurement, the abrasion resistance of nylon fiber is 10 times that of cotton fiber and 50 times that of viscose. Good abrasion resistance, so pressed together with rubber is an ideal material for making automobile tires. Nylon fiber is resistant to strong alkali and weak acid. After 16 hours of treatment with NaoH (10%) at 95℃, the strength loss is negligible, but nylon is not light fast, easy to change color and become brittle, so nylon fabrics should not be exposed to sunlight for a long time. Nylon 66 cannot be used in pharmaceutical and food manufacturers because it is toxic and harmful to human health.
Uses: rubber, ceramics, pharmaceuticals, food, metallurgy, etc. Product model: 30l, 407, 663, 17-2, 17-7.
Polypropylene filter cloth
Filter cloth classification: polypropylene staple fiber filter cloth; polypropylene long fiber filter cloth.
Filtration performance: polypropylene staple fiber, short fiber, spun yarn ribbon hair; polypropylene long fiber, long fiber, the formed yarn is smooth, so the industrial cloth made of polypropylene staple fiber, the cloth surface is hairy, powder filtering and pressure The filtering effect is better than long fiber. The industrial cloth made of polypropylene long fiber has a smooth surface and good air permeability.
Vinylon filter cloth
Performance: The chemical name of the vinylon filter cloth is polyvinyl alcohol. Its strength is lower than that of polyester, and its strength is only 3.52-5.72 Cndtex. The elongation at break is 12%～25%. Poor elasticity, poor fabric shape retention, good abrasion resistance, and durability 1-2 times that of pure cotton. But there is a big advantage that it can withstand the action of strong alkali, and has good hygroscopicity and is easy to combine with rubber. It is a good material for rubber industry. Its disadvantage is that the temperature is low, and the temperature is 100 ℃. Shrinkage, not acid resistant. Uses: Used for manufacturers with strong alkalinity and rubber industry. Product model: 295—1, 295—102, 295—104, 295—105, 295—107, 295—114, 295—1(A)
It is used for solid-liquid separation, gas-solid separation; gas-solid separation applications in the flue gas treatment and dust removal systems of ironworks, steelworks, ferroalloy plants, refractory plants, foundries, power plants, etc. Flue gas filtration for 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, recycling of fine materials, separation of liquid and solid. Liquid-solid separation and fine material recovery in chemical, coke, carbon black, dye, pharmaceutical, plastic and other fields. Dust treatment and purification collection in mining, grain processing, flour, electronics industry, wood processing, etc.
Solid-liquid separation application field: food and beverage: beer, wine, fruit wine, sake, white wine, rice wine, juice, bottled water, tea beverage, soy milk, MSG and other food additives manufacturing process purification and aseptic processing. Bioengineering and medicine: infusion (LVP and SVP) pharmaceutical water, process gas, biological product plasma serum, various pharmaceutical intermediates, pharmaceutical raw materials, solvent filtration, fermentation tank inlet and exhaust gas sterilization filtration. Petrochemical and chemical industry: separation and recovery of lubricating oil, jet fuel and various oil products, catalysts, viscose, polymer, resin, hydrogen peroxide, and valuable chemical intermediate products and chemical products. Automobile manufacturing: electrophoretic paint, pretreatment fluid, topcoat, ultrafiltration water, engine crankshaft manufacturing coolant, vehicle spray water, process gas for spray painting and gas purification for spray booths. Petroleum and natural gas: separation and purification of natural gas and refineries, CNG filtration at gas filling stations, amine liquid desulfurization and dehydration solvent filtration, oil field water injection and well completion, well workover, acidified liquid filtration. Electronics and electroplating: integrated circuits, picture tubes, liquid crystal displays, photoresists, optical discs, electroplating solutions, process gas purification and gas filtration in clean rooms. Coatings, paint inks: latex paint, paint raw materials and solvent filtration, printing ink, printing ink and additive filtration.
Monofilament filter cloth
Monofilament filter cloth uses various monofilaments (commonly known as healds) as raw materials, and is divided into four categories: polyester, nylon, polypropylene, and ethylene. Each has the physical and chemical properties of various synthetic fibers. The fabric has been treated with heat shrinkage and calendering on the surface. The product has high filtration efficiency, easy cake removal, easy cleaning, high strength, and long service life. It is a new generation of filter materials.
