Electrostatic precipitator electrostatic precipitator works by using high voltage electric field flue gas ionization, the air in the dust separated from the air stream charged under the electric field. Separation of dust trapped down at the anode plate, by mechanical or electromagnetic rapping rapping fall into the hopper manner. Negative electrode made of a metal wire made of different cross-sectional shapes, called the discharge electrode. A positive electrode made of different geometries metal plate called the collecting electrode. Electrostatic precipitator performance impact of dust properties, equipment configuration and flue gas flow rate of the three factors. Dust was to evaluate the specific resistance of the conductive targets, it has a direct impact on the collection efficiency. Specific resistance is too low, it is difficult to keep the dust collecting electrode, resulting in the return air stream. Specific resistance is too high to reach the dust collecting electrode is not easy to release the charge, the dust layer is formed between the voltage gradient will produce partial breakdown and discharge phenomenon. Compared with other electrostatic precipitator dust removal equipment, low energy consumption, high collection efficiency, suitable for removing dust 0.01-50μm flue gas, but also for the flue gas temperature, high pressure applications. Practice shows that the greater the amount of flue gas treatment, the use of an electrostatic precipitator more economic investment and running costs. It summarizes three decades of design, manufacturing and application experience, combined with China's industrial furnace waste gas industry conditions characteristics, to meet the increasingly stringent emission requirements and guidelines for research and development of WTO market research. The results have been widely applied in metallurgy, electric power, cement and other industries. The country won the trust of customers, with strong market competitiveness.