ESP anode plate is the core component of the acceptance criteria of the anode plate: straight, high strength, rigidity, and easy to distort. Formed between the anode plate cathode connected to high voltage DC power line and ground the anode plate voltage electric field, since the cathode corona discharge, the gas is ionized negatively charged gas ions, the role of the electric force, sunny plate movement in motion with dust particles collide, then the dust particles charged with negative electricity, after the dust charged in the role after the electric force, also to the anode to reach the anode, release negative charge, dust is deposited on the anode plate, The exhaust gas purification outer dust.