Development and Application Analysis of Shanghai Coggs Bag Dust Removal Technology
The bag filter has stronger adaptability to the high temperature, high humidity, high concentration of the flue gas and fine dust, hygroscopic dust, abrasive dust, flammable and explosive dust; and strengthens the cleaning and improves the efficiency. Reducing consumption, reducing faults, and facilitating maintenance have reached a higher level, especially in the large-scale equipment, dealing with ultra-large flue gas dust removal of more than 2 million m3/h; research and development and production of high temperature and corrosion resistant filter materials; The research, development and production of high-temperature and corrosion-resistant special fibers have all broken through the development of special filter materials PPS and PTFE domestic fibers to meet the life requirements of filter bags for power plant and waste incineration flue gas purification. PPS filter felt is a kind of polyphenylene sulfide (PPS) fiber produced by Coggs in the United States, Japan, etc., and is a filter material manufactured and processed according to other high temperature resistant felt production processes. It is one of the main varieties of high temperature resistant filter materials. . The PPS needle-punched filter material excels in applications in the following applications. PPS is also called polyphenylene sulfide fiber. The fiber is a new type of high temperature resistant fiber developed by Phillips of the United States and introduced to the market in 1983. At present, China's high temperature resistant needle felt filter market is mainly made of organic fiber Nomex Conex, Kermel and inorganic fiber glass fiber as raw material. The physical properties of organic fibers are significantly better than those of inorganic fibers. Polyphenylene sulfide fiber is another high-performance fiber in high-temperature resistant organic fiber in recent years. It not only can withstand high temperature, but also has unmatched excellent corrosion resistance of other high temperature resistant fibers. The advantages of needle-punched felt made of polyphenylene sulfide fiber indicate the following aspects: 1, good temperature resistance melting point 2. Excellent corrosion resistance Polyphenylene sulfide fiber is superior to Nomex Conex and Kermel fiber in resistance to organic acids, inorganic acids, acids and oxidants. 3. Excellent flame retardant polyphenylene sulfide fiber has a polar oxygen index (LDI) of 34-35, which is an incombustible material. Polyphenylene sulfide fiber needle-punched felt not only has high temperature resistance, but also has unique properties of corrosion resistance. It is widely used in high temperature and harsh working conditions in smelting, chemical, building materials, thermal power, waste incinerators, coal-fired boilers, etc. It is a high-quality and high-efficiency high-temperature filter material. Our company selects polyphenylene sulfide fiber produced in the United States and Japan, and specializes in the production of polyphenylene sulfide (PPS) needle-punched felt according to other high temperature resistant needle felting production process. The product quality has reached the level of similar products in developed countries. Fiber composition PTFE (polytetrafluoroethylene) high temperature resistant, corrosion resistant needled filter bag Warp strength (N/5× The filter bag is one of the core components of the bag filter. With the wide application of bag filters in various industries, the actual working conditions are becoming more and more complicated, which requires the filter bag products to adapt to the more complicated working conditions of physical and chemical properties. Many use glass fiber membrane filter material or P84 filter material, and achieved good results. P84 needle felt can also increase the filtration wind speed, reduce equipment volume and steel consumption, thus reducing initial investment. Coal-fired boiler flue gas purification and dust removal bag type dust collector, the filter material basically uses PPS needle felt, and some also incorporate a small amount of P84 needle felt in PPS fiber. There are also a few films on the surface of PPS needle felt, and have achieved good results. The bag filter used in the garbage incinerator is more reasonable with PTFE needle felt filter bag. . PTFE fiber is a very good fiber for waste incineration and coal-fired boilers. It can withstand high temperatures of 240 ° C and various acid and alkali corrosion. PPS fiber is mainly used for bag dust removal in power plants. Shanghai Coggs Filtration Materials Co., Ltd. is an enterprise that produces environmentally friendly materials. Exquisite sewing technology, high quality filter material is the key to the filter bag! Our company introduces special sewing equipment to produce various filter bags for domestic and imported bag filters, with an annual production capacity of 3 million. The filter bag is the key component to determine the dust removal efficiency of the bag filter. The cost of replacing the filter bag is the main maintenance cost of the bag filter. Therefore, the working life of the filter bag is related to the operating status and cost of the dust collector!
Material PTFE gram weight
Instant working temperature 280 °C Acid resistance Strong alkali resistance Strong oxidation resistance Not oxidized
Hydrolysis resistance Non-hydrolysis Surface treatment Polytetrafluoroethylene emulsion impregnation High temperature setting
The company has introduced a three-needle and six-wire sewing machine for the production of dust-removing bags from Japan. It can process various shapes such as round, trapezoidal, flat and shaped filter bags according to user requirements.