Ash water circulation treatment system of wet electric precipitator

Abstract

The invention discloses an ash water circulation treatment system of a wet electric precipitator. The ash water circulation treatment system comprises an ash water tank for collecting ash water, a spraying device for removing dust, a circulating water system and a process water system, wherein ion exchange equipment is further connected between a sedimentation basin and the spraying device. The ash water circulation treatment system has the following advantages and effects: alkali liquor and a coagulant are respectively added into a circulating water pool and a process water pool, so that slightly soluble matters in water are changed into soluble sodium salt, suspended solids coagulate and settle down, and the content of the suspended solids is reduced; moreover, the PH value of the water is controlled to be 7 or less, the water is in a near-neutral and slightly acidic state, and corrosion to metal can be reduced.

Description

technical field [0001] The invention relates to environmental protection equipment, in particular to a gray water circulation treatment system of a wet electric dust collector. Background technique [0002] Wet electrostatic precipitator is a kind of dust removal equipment used to deal with trace dust and fine particles. It is mainly used to remove dust, acid mist, water droplets, aerosol, odor, PM2.5 and other harmful substances in wet gas. It is Ideal equipment for controlling air dust pollution. [0003] The authorized announcement number is CN103056031B, and the authorized announcement date is August 24, 2016. The Chinese patent discloses a gray water circulation treatment system for a wet electrostatic precipitator, including: a gray water tank for collecting gray water discharged from the wet electrostatic precipitator; The supply branch includes the supply water tank and the flushing water pump; the water inlet of the flushing water pump is connected to the supply wa...

AI Technical Summary

Problems solved by technology

[0004] The supply branch of the gray water circulation treatment system of this wet electrostatic precipitator is connected to the spray mechanism of the wet electrostatic precipitator. The supply water in the supply water tank is industrial water, and the concentration of suspended solids in industrial water is generally 80mg / L. It far exceeds the 50mg / L standard of wet electrostatic precipitator, which makes the nozzle of the spray mechanism easily blocked, resulting in the dust collected on the plate cannot be washed away in time; at the same time, the concentration of suspended solids in the circulating water is also high, and the circulating water This problem will also occur when the water is connected to the sprinkler mechanism, and the replacement of the nozzle is easy to stop the operation, which will bring huge damage to the enterprise

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