Anti-static bag coated needle felt needle felt in the process of ecological production of conductive fibers or mixed conductive fibers or conductive material in the chemical fiber for surface dust, chemical dust, coal dust, etc. In case of electrostatic discharge potentially explosive industry. Dust bag structure suitable varieties pocket with elastic ring pulse jet bag filter (on Uncovery) sub-room cleaning dust collector (bag-hat) pulse bag filter bag tied (the mortgage or top-down) bag mouth with a wire loop pulse jet bag filter mechanical rotary cleaning bag filter bag rope compartment cleaning bag filter bag with side seal plug-in bag filter bag with hanging climbing mechanical rapping dust bag Sectional room cleaning bag filter http://www.jinxuhb.com/ccqbd/2015/0306/37.html