Combined and horizontal wet type electric dust precipitator

Abstract

The invention relates to a combined and horizontal wet type electric dust precipitator comprising a shell, a horn-shaped inlet, a horn-shaped outlet, dust precipitation units and a dust bucket, wherein each dust precipitation unit comprises an anode system, a cathode system and a spraying and cleaning system and are of a vertically stacked two or more layer structure; and a dust-water isolator is arranged between each two dust precipitation units, and a cathode frame of each cathode system is suspended on a top beam of the shell of the layer of the corresponding dust precipitation unit. By virtue of the horizontal wet type electric dust precipitator, the flowing direction of smoke of the wet type electric dust precipitator is vertical to that of flushing liquid, so that a large amount of smoke can be processed, an anode plate conveniently collects fine particles and aerosol in the smoke, and the removal efficiency of the fine particles and the aerosol is further improved.

Description

technical field [0001] The present invention relates to an electric precipitator, more specifically, relates to a compound horizontal wet electric precipitator. Background technique [0002] There are two types of electrostatic precipitators: dry type and wet type. The dry electrostatic precipitator adopts the vibration cleaning method to clean the dust, and the collected dust is dry. Conventional electrostatic precipitators are dry electrostatic precipitators. The wet electrostatic precipitator uses water to remove ash, and what is obtained is a mixture of gray and water. [0003] The performance of dry electrostatic precipitator is sensitive to the change of coal and ash characteristics and is easily affected by it. Due to the existence of a large amount of water mist, the wet electrostatic precipitator changes the nature of the dust, and there is no dust characteristic, that is, the influence of specific resistance. In addition, the effect of water film cleaning is goo...

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Problems solved by technology

[0009] Coal-fired power plants with large units have a large amount of flue gas. If the current wet electrostatic precipitator structure is used, it will hardly be used directly because of its large footprint and the small renovation space for existing domestic power plants.

[0010] The wet electrostatic precipitator with 300MW unit covers an area of ​​about 500m 2 , equipped with a 660MW wet electrostatic precipitator, covering an area of ​​about 1200m 2 , while the site between the wet desulfurization and the chimney of the active power plants in China is very narrow, with a difference of several times, it is difficult to arrange a wet electrostatic precipitator with a conventional structure

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