The pulse dust collector (pulse-jet bag filter) is a core environmental protection device in the waste battery recycling process line. It is typically installed after crushing, screening, and sorting operations, working together with cyclone separators and induced draft fans.

During shredding, crushing, and screening, waste batteries generate large amounts of ultrafine dust containing cathode/anode materials (such as lithium cobalt manganese nickel oxide and graphite powder), metal shavings, and electrolyte residues. The pulse dust collector draws dust-laden gas into the unit via an induced draft fan and uses filter bags (usually anti-static type) to efficiently capture the dust. When dust builds up on the bag surfaces, the pulse-jet system releases high-pressure air in a reverse burst, dislodging the dust into the hopper for collection.

Its main functions in the process line are as follows:

First, high-efficiency capture and purification. It applies negative-pressure collection and filtration to exhaust gases from crushing, pulverizing, screening, and grinding processes. The capture efficiency for fine particulates (below 10 microns) exceeds 99.9 percent, and the outlet particulate concentration can be reduced to below 5 milligrams per cubic meter, meeting national emission standards.

Second, valuable material recovery. The black powder (cathode/anode material powder) collected by the dust collector is returned via sealed piping to downstream processes as recycled raw material, improving overall recovery rates and preventing waste.

Third, safety and workplace protection. Graphite and metal dust are flammable and explosive. The pulse dust collector confines dust within a sealed negative-pressure system, effectively lowering workshop dust concentration, reducing explosion risks, and protecting operator health.

Fourth, safety design features. The equipment is typically equipped with anti-static filter media, explosion venting panels, and other explosion-proof safeguards to ensure safe operation when handling combustible dust.

In summary, the pulse dust collector serves the dual purpose of dust purification and resource recovery in the waste battery recycling line, making it an essential piece of equipment for achieving harmless treatment and resource utilization.