The exhaust gases from chemical reaction kettles containing chlorine and ammonia are highly corrosive to filter material. After being dipped in PTFE emulsion, the PPS bag forms a dense protective film on the fiber surface. After 48 hours of alternating aging with ***, the strength retention rate remains above 85%; its flame retardant index reaches UL94 V0 level, with an oxygen index of 34%, and it does not burn even when exposed to flash fires from high-concentration organic solvents; the surface resistance of the coated film is reduced to 10?Ω, effectively preventing static accumulation and ensuring safe operation of flammable dust conditions; it can run continuously for two years without replacement, providing the company with a safe, stable, and cost-effective exhaust gas treatment solution.
When selecting laminated PPS filter bags, consider the following factors:
Process conditions: Including temperature, humidity, dust characteristics, etc., to ensure the filter bag material is compatible.
(2) Filtration Precision: Select the appropriate membrane aperture based on emission standards.
(3) Lifespan: Choose products with better durability while ensuring effective filtration.
To extend the service life of the coated PPS filter bags, the following measures are recommended: (1) Regular inspection: Observe for any signs of damage or clogging in the filter bags. (2) Proper dust removal: Use an appropriate dust removal method (such as pulse jetting) to avoid excessive cleaning that may damage the coating. (3) Avoid operating at excessive temperatures: Long-term operation above the filter bag's tolerance temperature accelerates aging.
