Under the action of an applied high pressure, the negative wire surface or nearby emits electrons that quickly move to the positive pole, collides with gas molecules and ionizes. When the soot exhaust gas passes through this high-pressure electric field, the soot particles are charged by collision to capture gas ions in a very short period of time, and the electric field force moves toward the positive collector dust plate to achieve the separation effect. The equipment has low investment, small footprint, no secondary contamination and low operating costs. Due to the easy capture of smaller dust particles, high purification efficiency, up to 85 ~ 95 %. The difference between its purification mechanism and the gas method is that the separation force is electrostatic, acting directly on the particles rather than on the air flow, so it has the characteristics of low energy consumption and low resistance.
Electrostatic filter: A gas containing dust particles. When a high-pressure electric field formed between a cathode line(also known as a corona) connected to a high voltage DC power supply and a grounded anode plate passes through, a corona discharge occurs at the cathode and the gas is ionized. At this time, The negatively charged gas ions, under the action of the electric field force, move toward the sun plate, and when they collide with the dust particles during the movement, the dust particles are negatively charged, and the charged dust particles are under the action of the electric field force. It also moves toward the anode and arrives at the anode. The electrons are released, and the dust particles are deposited on the anode plate, and the purified gas is discharged out of the dust filter.
Technical advantages of high voltage electrostatic equipment:
1. Treatment of large wind, small pressure loss. Can run under high humidity conditions.
2. The removal rate can meet the purification requirements at one time.
3. The effective removal of particles has a large range of diameters.