[Dust collector filter bag] What are the dust collector filter bag materials? Bag dust collector filter bag material classification
What are the materials and characteristics of dust collector filter bags
Dust collector bag manufacturers introduce the following types of dust collector materials:Polyester needle felt, nylon filter bag, Metas, polypropylene filter bag, PPS filter bag, P84 filter bag, PTFE filter bag.
There are many varieties of dust collector filter bag materials. Filter bags made of various materials have different uses in dust removal equipment, are applicable to different working conditions, and have different characteristics. The following commonly used filter materials are provided by dust collector filter bag manufacturers for reference only.
Polyester needle felt: Widely used in environmentally friendly dust removal equipment, it is suitable for working at room temperature and can continuously work at 130 degrees , good elasticity, good stretchability, better wear resistance and temperature resistance than nylon, acid and weak alkali resistance! Can be calendered, singed, and easily hydrolyzed. Only suitable for temperatures below 90 degrees.
Nylon filter bag: High strength! The wear resistance is better than that of natural fibers, with smooth surface, good elasticity, resistance to continuous twisting, alkali resistance, acid resistance, and concentrated acid resistance. The ultimate use temperature of nylon is 90-95 degrees.
Metas: Metas has good temperature resistance and can be continuously dried under 200 degree drying conditions. Works, has strong folding resistance, wear resistance, and acid resistance, better than nylon, and is more resistant to alkali at normal temperature. It is easily soluble at high temperatures. Metas is a hydrolyzable fiber, and the moisture content in the dust and flue gas cannot be greater than 20%. If the dust and flue gas moisture is greater than 20% the filter bag will hydrolyze under high temperature conditions.
Polypropylene filter bag: Polypropylene is relatively cheap, has the same strength as nylon or polyester, and can withstand humidity conditions of 90 degrees When used under normal conditions, the softening temperature is 150 degrees. Polypropylene has good acid resistance, alkali resistance and wear resistance.
Acrylic filter bag: at temperatures below 125 degree, it has good resistance to organic solvents, oxidants, inorganic and organic acids. Acrylic is not a self-condensation polymer, and is often used to replace fibers with hydrolysis problems, that is, at low temperatures, humidity and Use in situations where there is chemical corrosion.
PPSFilter bag: High temperature resistance, melting point285 degrees, commonly used at 190 degrees, and the instantaneous temperature resistance can reach 230 degrees. In addition, it has good flame retardancy and does not support combustion under normal atmospheric conditions. It can maintain good filtration performance under harsh working conditions and achieve an ideal service life.PPSThe most outstanding thing is that it is not easy to hydrolyze and can operate in humid and corrosive environments. However,PPS has poor antioxidant properties and the operating temperature is not easy to lower140degree otherwise the oxidation rate will be accelerated.
P84Filter bag: Good temperature resistance, can be used in 260Continuous operation at ℃, the instant working temperature can reach 280℃, P84 fiber weave is fine It has good filtration, easy dust removal and low running resistance. P84Chemical properties include good strength, good wear resistance, and significantly improved service life, but it is not resistant to hydrolysis.
Polytetrafluoroethylene filter bag: It is the best filter material, water resistance, antioxidant, high temperature resistance, low temperature resistance, melting point 327 degrees, the instantaneous temperature resistance can reach 300 degrees. The filter material has good filtration, dust removal, flame retardancy, low resistance, Long service life, but expensive.
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