A non-cleaning anode plate and wet electrostatic precipitator

Abstract

The invention discloses a rinse-free anode plate and a wet electrostatic precipitator. The rinse-free anode plate comprises an anode plate module which comprises a or a plurality of anode plate rows; each anode plate row comprises a plurality of anode plate units which are in series connection with each other; the anode plate units are of hollow structures and used for allowing cooling water to pass through; each anode plate row comprises a water inlet and a water outlet; an anode plate row is a loop or a plurality of the anode plate rows are a loop. The wet electrostatic precipitator comprises a shell of an empty cavity inside; an anode plate and a cathode system and the like are disposed in the shell, wherein the anode plate is a rinse-free anode plate, and an electric field is formed between the cathode system and the anode plate. With the rinse-free anode plate and the wet electrostatic precipitator provided by the invention, rinsing process of the anode plate is eliminated, use of process and alkaline water is saved, various bad effects brought by rinsing are avoided, removal efficiency of the wet electrostatic precipitator to droplets, gypsum rain, dust and the like is improved at the same time.

Description

technical field [0001] The invention relates to a wet electric dust collector, in particular to a non-cleaning anode plate and a wet electric dust collector. Background technique [0002] The wet electrostatic precipitator is generally installed after the mist eliminator of the desulfurization tower and before the chimney inlet, and its applications include thermal power plants, chemical plants, steel mills, cement kilns and other industries. Wet electrostatic precipitator is an environmental protection equipment set up for further processing dust, mist, etc. It can further reduce the emission concentration of dust, SO2, heavy metals, etc. Corrosion, reducing the "gypsum rain" phenomenon. The existing wet electrostatic precipitators mainly have two structural forms: plate type and tube type. The material of the plate type wet electrostatic precipitator is mostly metal plate (generally 316L material). [0003] In actual operation, the flue gas from the absorption tower usin...

AI Technical Summary

Problems solved by technology

However, the existing wet electrostatic precipitator is not very ideal for the removal efficiency of droplets, gypsum rain, dust, etc., and for the anti-scaling and anti-corrosion of the metal plate (anode), it needs to be continuously washed with lye, although there are The flushing water circulation recovery system can reduce the consumption of alkaline water and process water, but it will inevitably destroy the existing water circulation and increase energy consumption; at the same time, new droplets will be generated during the spraying process, resulting in secondary pollution and reducing the water consumption. The removal rate of drops; spraying water may also aggravate the discharge phenomenon of the cathode line, so that the electric field cannot operate stably and efficiently

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