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What are the classifications of filter materials for air filters?
What are the classifications of filter materials for air filters?The main function of air filters: is ventilation and purification, removal of dust particles in the newly incoming gas, the characteristics are that they can handle low dust concentration in the air, fine particles, and high purification efficiency.The main frame materials are paper, aluminum alloy, galvanized steel plate, etc. The main filter materials are glass fiber filter cotton, activated carbon filter cotton, synthetic fiber filter cotton, non-woven filter cotton, etc. The main filter materials of air filters. Glass fiber filter cotton: Glass fiber filter cotton is mainly made of various glass fibers of different thicknesses and lengths through special processing technology. Glass fiber has the characteristics of stable performance, high-temperature resistance, high efficiency, large capacity, and long service life. And in some special environments, only wave lines can do the job. It is widely used in primary filters, high-temperature resistant filters, and high-efficiency filters of general ventilation systems, and places and environments with high requirements for air filtration. The main filter materials of air filters. Activated carbon filter cotton: The characteristic of activated carbon is to remove odors in the air. Activated carbon filter cotton refers to synthetic fibers that have been treated with carbonization and glue. Because the function of activated carbon is to remove odor, the filtering efficiency is not emphasized. In use. Generally, it must be used with independent primary and medium efficiency filters. Synthetic fiber filter cotton: In general filtering environments, it can fully replace non-woven fabrics and glass fibers to cover the entire series of coarse, medium, and high-efficiency filtering products. It is an emerging filtering material and the main development direction of filtering materials in the future. Compared with other filter materials of the same level, it has the advantages of low resistance, lightweight, large capacity, environmental protection (incineration), and moderate price. It uses (polyester fiber) as the main raw material, abbreviated as PET. Polyester fiber is made of polyethylene terephthalate, also known as synthetic fiber or polyester. Polyester has excellent wrinkle resistance, elasticity, and dimensional stability, good electrical insulation performance, sunlight resistance, friction resistance, mildew resistance, good chemical resistance, and can withstand weak acids and weak alkalis. The industry name is: chemical fiber, chemical fiber is divided into large chemical fiber and small chemical fiber. Non-woven filter cotton: The scientific name is polyester fiber, commonly known as non-woven fabric. Non-woven fabric has technical characteristics such as wide use, technical maturity, and good stability. It is a typical filter material for primary and medium-efficiency plate and bag filters in my country. The manufacturing process is made through multiple processes such as melt-blown, needle-punched, spun lace, and spun bond. Compared with other filter materials of the same level, it has the advantages of stable quality, large dust-holding capacity, strong moisture resistance, long service life, and economic durability. Non-woven fabric is also the earliest filter material used, with mature technology and low production cost. In recent years, due to the continuous advancement of technology, the emergence of composite non-woven fabrics has greatly improved the cheap and low-end image of non-woven fabrics, and the efficiency has reached sub-high efficiency. At the same time, composite non-woven fabric filter materials can also be used for filtering in places with relatively high requirements for air cleanliness. |
