Anode cathode line of high voltage dc power supply and ground of high voltage electric field formed between electrolytic aluminum anode plate, due to the cathode corona discharge, gas ionization, negatively charged gas ion, in under the action of electric field force, xiangyang plate movement, the dust particles and a collision in the movement, makes the dust load with negative charge, after the charged dust particles under the action of electric field force, also to the anode movement, arrived at the anode, release negative charge, dust deposition on the electrolytic aluminum anode plate, and the purified gas dust from outside.
