Ash water circulation treatment system of wet-type electric dust remover

Abstract

The invention discloses an ash water circulation treatment system of a wet-type electric dust remover. The ash water circulation treatment system comprises an ash water tank used for collecting ash water discharged from the wet-type electric dust remover, a supplementary branch and a circulating branch, wherein the supplementary branch comprises a supplementary water tank and a flush water pump; a water inlet of the flush water pump is connected with the supplementary water tank; a water outlet of the flush water pump is connected with the spraying mechanisms of the wet-type electric dust remover through a water conveying pipe; the circulating branch comprises a circulating water tank, a circulating water pump, a solution tank filled with an alkali solution and an automatic filter; a water outlet of the ash water tank and a water outlet of the solution tank are connected with the circulating water tank respectively; a water inlet of the circulating water pump is connected with the circulating water tank; a water outlet of the circulating water pump is connected with a water inlet of the automatic filter; and a water outlet of the automatic filter is connected with the spraying mechanisms of the wet-type electric dust remover through the water conveying pipe. The ash water circulation treatment system is simple in structure and scientific and reasonable in arrangement; water can be continuously supplied for self circulation; the water consumption is greatly reduced; the water consumption cost is saved; and the ash water can be prevented from causing secondary pollution.

Description

Technical field [0001] The invention relates to a water treatment system, in particular to a gray water circulation treatment system of a wet electric precipitator which can realize self-circulation of feed water and greatly reduce water consumption. Background technique [0002] In recent years, with the continuous increase in installed capacity of thermal power plants and the increase in the total amount of pollutants emitted, it has put a lot of pressure on the atmospheric environment. In order to implement the country’s scientific development concept, the newly promulgated thermal power plant pollutant emission standards (GB13223-2011) have It was officially implemented on January 1, 2012. With the introduction of the new standards, people’s awareness of the environmental and health hazards of fine dust, acid mist, heavy metals and other pollutants has also been further improved. The national emission standards for air pollutants will continue to increase, especially PM2.5. ...

AI Technical Summary

Problems solved by technology

However, the large-scale application of wet electrostatic precipitators in domestic coal-fired power plants is still very rare due to the problems of huge water consumption, secondary pollution of discharged gray water, and serious corrosion of internal parts.

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