Dry electric precipitator with metal mesh anode plate

Abstract

The invention discloses a dry electric precipitator with a metal mesh anode plate. The dry electric precipitator comprises a shell, the anode plate and an corona line, the anode plate and the corona line are arranged in the shell, the anode plate and the corona line are arranged alternately and in parallel, and an electric field is formed between the anode plate and the corona line; and the anodeplate comprises a frame and a metal mesh, the metal mesh is fixed in the frame, and the void rate of the metal mesh is 8-20%. The dry electric precipitator has the advantages that through the metal mesh, the lateral scour force of the ion wind on the anode plate is weakened, the production of secondary raising dust is reduced, the pressure of the overall device is lowered below 250 Pa, the equipment resistance is reduced, the fan design requirements and operating energy consumption are reduced simultaneously, and the fact that the outlet particle concentration is below 10 mg/m3 can be achieved; and the current density is significantly reduced, the total current required for the whole anode plate is reduced, the energy saving effect is obvious, the weight of the anode plate is also reduced,the total weight of the whole electric precipitator is greatly reduced, the overall steel mass, installation, manufacture and the like of the electric precipitator are reduced, and the cost is greatly reduced.

Description

technical field [0001] The invention relates to a dry electric dust collector with a metal mesh anode plate. Background technique [0002] At present, the mainstream equipment for flue gas particulate matter treatment equipment in coal-fired power plants at home and abroad is dry electrostatic precipitator. Conventional electrostatic precipitators generally adopt the pole matching type of cathode wire and anode plate. The anode is a profiled plate structure, and the high voltage power supply supplies power to the cathode wire. , the anode plate is grounded and used as a dust collector. Because the anode adopts a profiled plate structure, the high-voltage discharge of the conventional electrostatic precipitator is easy to form ion wind to wash away the adsorbed particles on the anode, thereby increasing the secondary dust, and cannot achieve efficient and stable removal of particles. Ultra-low emission requirements and a large amount of steel for the anode plate are one of th...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a dry electrostatic precipitator with a metal mesh anode plate, which can effectively solve the problems that the ion wind generated in the existing dry electric precipitator affects the dust removal effect, the anode plate is too heavy and the energy consumption is high

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