Glass Fiber Filter Material Is Popular in High Temperature Waste Gas Filtration Market

Release time：

2011-06-25 00:00

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The environmental pollution caused by the discharge of industrial waste gas and waste residue has brought harm to human survival and health.In recent years,domestic and foreign markets have vigorously introduced filter materials.After practical use,synthetic fibers such as nylon and polypropylene are not suitable for high temperature filter materials.Glass fiber base products are high-quality high temperature resistant and anticorrosive filter materials,which are widely used in carbon black,electric power,cement,glass,metallurgy,steel,chemical and pharmaceutical industries.The glass fiber needled felt developed by DuPont Company of the United States is made of 85%polytetrafluoroethylene fiber and 15%textile glass fiber needled on 100%polytetrafluoroethylene mesh.It can withstand strong chemical erosion and can be used continuously at a high temperature of 250℃.It has low pressure loss,good air permeability and long service life.The dust collection and filtration efficiency can reach more than 99.9%.The glass fiber needled felt developed by an Austrian company can be used at a high temperature of about 260℃,the instantaneous maximum temperature can reach 287℃,and the service life of the filter bag is more than 2 years.It is a high-quality filter material for pulse blowing dust removal and reverse blowing dust removal.A Japanese company has successfully developed a glass fiber composite filter material,which is made of polytetrafluoroethylene film pasted on glass fiber felt or glass fiber fabric.This PTFE filter membrane with a thickness of 20 microns to 30 microns is specially treated to produce a very uniform microporous structure.Glass fiber mats and fabrics reinforce this PTFE membrane with a microporous structure.The filter material can be continuously used at the temperature of-240 deg C and+260 deg C,and has the characteristics of high chemical corrosion resistance,low pressure loss,large treatment air volume,long service life and the like,and the filtration efficiency is as high as 99.9%.Glass fiber filter materials have occupied a dominant position in the industrial sector of high temperature flue gas filtration in China.This is because the filtration temperature of many flue gases is over 200℃,and the wear resistance,folding resistance and corrosion resistance of glass fibers are greatly improved after surface impregnation treatment and other special processes,which can greatly meet the requirements of high-temperature flue gas dust removal and filtration in relevant industrial departments.At present,China is famous for the high temperature filter material P84 of Sinoma South Glass Institute.Yingkou Special Fluorine Company has developed various kinds of glass fiber filter materials and put them on the market.Funing in Jiangsu and Xinxiang in Henan have become large-scale filter material production bases in China.