Wet-type electric dust removal system after wet desulphurization

Abstract

The invention discloses a wet-type electric dust removal system after wet desulphurization. The wet-type electric dust removal system comprises a wet-type electric dust remover and an ash water treatment circulation system, wherein a cathode system, an anode system and a plurality of spraying mechanisms are arranged in the wet-type electric dust remover; an ash water tank is arranged at the lower part of the wet-type electric dust remover; the ash water treatment circulation system comprises a supplementary water tank, a flush water pump, a circulating water tank, a circulating water pump, a solution tank filled with an alkali solution, an automatic filter and a water conveying pipeline; 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; 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. According to the wet-type electric dust removal system, aerosol formed by PM2.5 fine particle dust, SO3, NH3 and the like can be efficiently removed, corrosion of internal parts can be reduced, water can be supplied for self-circulation, the water consumption is greatly reduced, and the problem of secondary pollution caused by ash water is solved.

Description

technical field [0001] The invention relates to a wet electric dust removal system after wet desulfurization, in particular to a wet electric dust removal system after wet desulfurization which can realize self-circulation of water supply and greatly reduce water consumption. Background technique [0002] In recent years, with the continuous growth of thermal power installed capacity and the increase in the total amount of pollutants discharged, great pressure has been placed on the atmospheric environment. It was officially implemented on January 1, 2012. With the promulgation of new standards, people's awareness of fine dust, acid mist, heavy metals and other pollutants harmful to the environment and health has further improved, and the country's emission standards for air pollutants will continue to increase, especially PM2.5. This kind of fine particulate matter, which is extremely harmful to human health, is bound to become the control index of the country's emission s...

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Problems solved by technology

However, the large-scale application of wet electrostatic precipitators in domestic coal-fired power plants is still very rare due

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