Wet-type electrostatic precipitator capable of removing micropollutants efficiently

Abstract

The invention relates to a wet-type electrostatic precipitator capable of removing micropollutants efficiently. The wet-type electrostatic precipitator capable of removing micropollutants efficiently, which is provided by the invention, is sequentially provided with dust collecting electrodes, electric discharge electrodes, a spraying master pipe, spraying branch pipes, sprayers, a spraying water tank and a reactant storage box. According to the invention, organic chelating agents in the reactant storage box are added into the spraying water tank, and are sprayed into the wet-type electrostatic precipitator along with water mist, perform chelation reaction with multiple heavy metal ions in a water membrane so as to generate a metal chelate compound which is stable and is water-insoluble, so that trace heavy metal pollutants in flue gas are removed efficiently. The wet-type electrostatic precipitator capable of removing micropollutants efficiently, which is provided by the invention, is low in running resistance; water mist sprayed by the sprayers bidirectionally directly covers the dust collecting electrodes at two sides of the sprayers, and the water spraying efficiency is high; the formed water membrane is good in uniformity; and the efficiency of removing the micropollutants is high.

Description

technical field [0001] The invention relates to a wet electric dust removal device, in particular to a wet electric dust removal device for efficiently removing trace pollutants. Background technique [0002] The typical feature of the wet electrostatic precipitator is that a uniform water film is formed on the dust collecting electrode by spraying water through the nozzle, and the dust, acid gas and other pollutants in the flue gas are absorbed by the water film, and then discharged from the wet electrostatic precipitator. [0003] In the current wet electrostatic precipitator, the water inlet pipe and nozzle are located directly above the dust collecting pole, and the nozzle type is mostly full cone. This arrangement and nozzle type increase the number of nozzles used, and the water consumption is large. The formation of water film The effect is not good, which directly affects the investment cost, operating cost and removal effect of trace pollutants of the wet electrosta...

AI Technical Summary

Problems solved by technology

[0003] In the current wet electrostatic precipitator, the water inlet pipe and the nozzle are located directly above the dust collecting pole, and the nozzle type is mostly full-cone. This arrangement and nozzle type increase the number of nozzles used, the water consumption is large, and the formation of the water film The effect is not good, which directly affects the investment cost, operating cost and removal effect of trace pollutants of the wet electrostatic precipitator, and some nozzles are designed with high running resistance, which is not conducive to the formation of water mist and affects the uniformity of the water film. property, which also causes poor cleaning effect of water film

In addition, the current wet electrostatic precipitator is not effective in removing trace pollutants such as heavy metals, which also needs to be solved

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