Polyester needled felt dust bag has the characteristics of good dimensional stability, high strength and long service life, so it also has the unique advantages of small resistance, easy cleaning and so on. In the industries of beneficiation, coal preparation, petroleum, chemical industry, etc., where tiny particles need to be filtered and filtration is ensured, the polyester triple-proof needle felt is far superior to conventional woven filter materials. Sustainable operation at temperatures below 120°C, good acid and alkali resistance. It is applied to the dust filtration field where the flue gas temperature is below 100°C or where the acidity is weak.
