- Filter cloth
- Filter cloth
- filter bag
- Industrial filter cloth
- Polypropylene filter cloth
- Polyester filter cloth
- Monofilament filter cloth
- Dust bag
- Coal washing, tailings, mixing station, special filter cloth for sludge
- Filter cloth for sewage treatment
- Cotton / Antistatic Filter Cloth
- Vinylon filter cloth
- Filter cloth for filter press
- Centrifuge bag
Filter press classification
Divided into box type filter press, belt filter press, belt concentration dehydration integrated machine is a filtration and separation equipment commonly used in sludge and food. Metallurgy, dyes, food, brewing, ceramics and environmental protection industries. The filter press consists of a plurality of filter plates and filter frames superimposed to form a filter chamber, and the pressure is a filter driving force. Filter presses are intermittently operated, with plate and frame filter presses, box-type filter presses and vertical filter presses. The filter plate has stable performance, convenient operation, safety, labor saving, precision casting of metal and plastic steel filter plate, high temperature, high pressure and durability.
During the use of the filter press, since the filter press itself is the same specification, the different filtration accuracy, speed, etc. required for different filtering objects are through the use of different filter press filter cloths, also known as filter presses The filter bag is implemented. Each filter press filter plate is wrapped with filter cloth. According to the requirements of different filter objects such as acid and alkali resistance, tensile strength, filtration accuracy, and filtration speed, first determine the material of the filter cloth. Model, then according to the size and shape of the filter plate, process the matching filter cloth bag, put it on the filter cloth, so the filter cloth is the heart of the filter, as well as in the filter press.
Filter cloth filter type
Filter cloth mainly includes: filter press polyester filter cloth, filter press polypropylene filter cloth, plate and frame filter press nylon filter cloth, plate and frame filter press vinylon filter cloth, cotton filter cloth and so on. The following are examples of common filter cloths:
Plate and frame filter press polyester filter cloth
Divided into polyester long fiber filter cloth, polyester short fiber filter cloth.
Material properties of polyester staple fiber filter cloth: acid resistance, weak alkali resistance. Good abrasion resistance, corrosion resistance, resilience, and poor conductivity. The temperature resistance of polyester fiber is generally 130-150 degrees Celsius. This product has the unique advantages of ordinary felt filter cloths, and has very good abrasion resistance. It has a high cost performance and is the largest used in felt filters. Variety. Heat resistance: 120 ° C, elongation at break (%): 20-50, breaking strength (g / d): 438, melting point (° C): 238 · 240, melting point (° C): 255-260. Specific gravity: 1.38. Filtration performance: The structure of polyester short fiber filter cloth is short and wooly, the woven fabric is dense, the particle retention is good, but the peelability and air permeability are poor. Strength and abrasion 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 filament filter cloth material properties: acid resistance, weak alkali resistance. Good abrasion resistance, corrosion resistance, resilience, and poor conductivity. The temperature resistance of polyester fiber is generally 130-150 degrees Celsius. This product has the unique advantages of ordinary felt filter cloths, and has very good abrasion resistance. It has a high cost performance and is the largest used in felt filters. 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. Specific gravity: 1.38. Filtration performance: polyester long-fiber filter cloth has smooth surface, good abrasion resistance and high strength. After being twisted, 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, with a strength of 4-5.3Cndtex. The elongation is 18% to 45%. When the elongation is 10%, the elastic recovery is more than 90%. Nylon strength is the strongest among the fibers. According to measurements, the abrasion resistance of nylon fibers is 10 times that of cotton fibers and 50 times that of viscose. Abrasion resistance ranks first among various fibers, so pressing together with rubber is an ideal material for manufacturing automotive tires. Nylon fiber is resistant to strong alkali and weak acid. After being treated with NaoH (10%) at 95 ° C for 16 hours, the strength loss is negligible, but nylon is not light fast, and it is easy to change color and become brittle. Therefore, it is not suitable for nylon fabric to 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 short 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 formation, so polypropylene short fiber woven industrial cloth, cloth with hair, powder filtration and pressure Filtration effect is better than long fiber. The industrial cloth made of polypropylene long fiber weave has a smooth surface and good air permeability.
The main representatives of polypropylene filter cloth series are:
Medium type: 521 522 4212 750A Thick type: 750B (series) 750AB
Vinylon filter cloth
Performance: The chemical name of vinylon filter cloth is called polyvinyl alcohol. Its strength is lower than that of polyester, and its strength is only 3.52-5.72 Cndtex. Elongation at break: 12% to 25%. Poor elasticity, poor shape retention, good abrasion resistance, and durability 1 to 2 times that of pure cotton. But one of the biggest advantages is that it can withstand the action of strong alkalis, and has good hygroscopicity, easy to be combined with rubber. It is a good material used in the rubber industry. Has shrinkage and is not acid resistant. Uses: For manufacturers with strong alkaline and rubber industry. Product model: 295-1, 295-102, 295-104, 295-105, 295-107, 295-114, 295-1 (A)