As we pay more attention on the environmental protection, there are more and more stringent requirements for emission concentration. While other dust collector can not meet the new standards, only baghouse can achieve the new standards. Baghouse filter bag as a key component, its performance directly affects the emission concentration and life. Following we will discuss P84 fiber and PPS fiber’s properties for your reference.
P84 fiber
It has a higher heat resistance, temperature up to 260 ℃, instantaneous reach 280 ℃ (instantaneous temperature does not exceed zero 200h), almost equal with fiberglass fiber. With irregular leaf-shaped fiber cross-section, P84 surface area increases, and improves filtration efficiency than other fibers by 15% to 20%. As dust will not infiltrated the cloth, can reduce the pressure drop at the same time, release properties, it can be used in cement plant, thermal incinerator, calcium carbide factory. Especially composite P84 fiber and fiberglass fiber, the advantages of the two materials will be played full. Following is the point need to consider when using P84 filter bag: (1) before the exhaust gas into the bag, the best desulfurization treatment (2) the content of nitrogen oxides NOx <600mg / Nm3 (3) the content of sulfur oxides SOx <600mg / Nm3 (4) oxygen O2 <22%, aqueous H2O <35%
PPS fiber
Its biggest advantage is that good chemical resistance, fiber strength 30% higher than other organic fibers, high filtration efficiency, low running resistance, temperature up to 180 ℃, instantaneous even reach 200 ℃ (instantaneous limit: no more than a year 400h), and low price. With excellent chemical properties,PPS fiber is widely used in coal-fired boilers, incinerators, fuel oil, coal and other places. Following is several questions need to notice as PPS has the disadvantage of easy oxidation. (1) oxygen content less than 14% (2) a hydroxide of less than 600mg / Nm3 (3) temperature should not exceed 180 ℃ (4) a sulfur content of less than 2700mg / Nm3
Conclusion
Dust bag as the “heart” of dust collector, in order to give full play to its advantages, it must meet its working conditions. It is best to be used continuously , be cleaned regularly. And working in the temperature which is higher than its acid dew point of 20 ℃. Only in this way, it can have the best performance.
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