The filter material is the “heart†of the bag filter, accounting for 20% to 40% of the total cost of the filter. According to Cai Weilong, director of the company's technical center, the industrialization project of acid-resisting domestic aramid composite needled felt mating with Fuzhou University was the first to introduce domestic aramid fiber and glass fiber as the main raw materials, through rational structure design and formula optimization. , The use of advanced non-woven needle punching process into felt, and then high-temperature heat setting, singeing calendering and acid treatment and other technologies to create high-grade filter material.
The new product not only overcomes the shortcomings of the existing needle felt due to the rapid rise of resistance due to the easy penetration of dust into the deep layer of the filter material, but also the formation of a layer containing PTFE on the surface of the needle punched composite filter mat through a special coating process. Protective layer to improve its acid resistance, so that it can be applied to high temperature, corrosive filtration conditions.
Compared with single-fiber high-temperature filter material, the needled composite filter felt has long service life, stable differential pressure and low emission concentration, and can be widely applied to high-temperature flue gas dust removal in petroleum and chemical industries.
The reporter learned yesterday from Xiamen Three-Dimensional Silk Environmental Protection Co., Ltd. that the company's fiber composite acupuncture filter mat was rated as “the most practical atmospheric control technology/equipment†by the China Environmental Protection Industry Association. The company's research and development of 100% PTFE fiber needle punch filter mat has become China's advanced technology of high temperature, corrosion resistant filter material system.
July 03, 2018