Mixed-flow electric dust collector

Abstract

The invention relates to a mixed-flow electric dust collector, wherein an air flow distribution plate is arranged at the joint of a dust removing chamber and a smoke inlet; a first vertical electric field and a second vertical electric field, through which an air flow flows, are arranged in the dust removing chamber; parallel dust collecting electrodes are distributed in the electric fields at equal interval; main air flow channels are formed among the dust collecting electrodes; a corona electrode is arranged between adjacent dust collecting electrodes; some of the air flow channels are provided with an incoming air flow baffle at an air flow inlet, and the other air flow channels are provided with an outgoing air flow baffle at an air flow outlet; a plurality of dust collecting electrode plates are arranged on the dust collecting electrodes and fixed in the dust collecting electrode in a separated manner; and the main air flow channels are provided with a plurality of air equalization plates having through holes on the surface at the outlet of the first electric field and baffles at the outlet of the second electric field. With simple structure and few electric fields, the invention solves the problem that the conventional dust collector has poor dust removal effect, large size, complicated structure and high cost.

Description

technical field [0001] The invention relates to a flue gas dedusting device, in particular to a mixed-flow electric precipitator. Background technique [0002] Electrostatic precipitator is one of the most commonly used devices for purifying flue gas particles, and has been widely used in flue gas dust removal and purification treatment in industries such as electric power, metallurgy, nonferrous metals, chemicals and building materials. The electrostatic precipitator has the advantages of large particle size range, advanced technology and high dust removal efficiency. However, there is a reverse corona phenomenon for some coal dust and high-temperature and high-resistance dust. Efficiency drops; in addition, electrostatic dust removal is difficult to effectively remove fine particles (less than PM2.5), and the surface of these fine particles is often enriched with trace heavy metal elements and organic pollutants produced by fuel, which is very harmful to human health and t...

AI Technical Summary

Problems solved by technology

[0005] The present invention mainly solves the problems of poor dedusting effect of traditional electrostatic precipitators, and too many electric fields in the dedusting device, resulting in excessively large volume, complicated structure and high cost of the dedusting device, and improves a kind of electrostatic dedusting device with simple structure and few electric fields. Mixed flow electrostatic precipitator

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