PPS bags are high-performance dust filtration bags made primarily from polyphenylene sulfide (PPS) fibers. Known for their excellent resistance to high temperatures, corrosion, high filtration accuracy, and good cleaning performance, they are widely used in various industrial fields. In environments with high-temperature flue gas emissions such as coal-fired power plants, waste incineration plants, steel mills, and cement factories, PPS bags can effectively capture dust particles, meet stringent environmental emission standards, and are particularly suitable for complex conditions involving acidic gases (such as SO2, SO3) and alkaline dust. Additionally, PPS bags are used in flue gas purification systems for industries like chemicals, metallurgy, and coking, ensuring stable equipment operation and extending service life, making them one of the key materials for achieving industrial dust emission*** standards.Coal charging vehicles can see the smoke temperature skyrocket to 240°C instantly. The PPS+PTFE composite filter bag, with its ability to withstand temperatures up to 230°C instantaneously, and the PTFE fabric's advantage of not dripping at 230°C, effectively captures tar and soot mixtures. The fibers are treated to be oil and water repellent with a contact angle ≥120°, preventing tar particles from渗入filter media. Surface pulse cleaning can easily strip them off. After 6000 hours of operation, the permeability decreases by less than 5%, and the emission concentration remains below 10mg/Nm3, effectively preventing yellow smoke from escaping during the coal loading process, and significantly improving the environment in the factory area and surrounding areas.The temperature inside the pharmaceutical spray drying tower is 150°C, and the powder has high value. The PPS bag is treated with a food-grade surface finish, ensuring no fiber shedding and compliance with GMP standards; the 0.12μm microporous film filter has a filtration efficiency of ≥99.999% for 0.1μm drug powder particles, achieving nearly zero loss recovery; the surface resistance is as low as 10?Ω, effectively preventing static adhesion of drug dust; after pulse cleaning, the residual pressure difference is ≤400Pa, ensuring continuous and efficient operation of the drying system. In one year, it can recover hundreds of thousands of value for the user from active ingredients, balancing environmental protection and economic benefits.