According to the different ways of dust removal, dust collectors are divided into pulse dust collector, bag dust collector, Venturi wet dust collector, etc. Pulse dust collector is a device that removes the dust attached to the filter medium (cloth bag or filter cartridge) by injecting compressed air. Venturi dust collector is a device that makes the dust-containing gas and liquid (half of which is water) contact closely, and uses the inertial collision of water droplets and particles and other functions to capture particles or increase particles.