Wet type electric dust removal device for coal-fired power plant

Abstract

The invention relates to a wet-type electric dust removal device for a coal-fired power plant, the wet-type electric dust removal device is arranged on a smoke exhaust pipeline of an absorption tower, and the wet-type electric dust removal device comprises a smoke inlet pipeline, a smoke outlet pipeline, a wet-type electric dust remover, an inlet baffle plate, an outlet baffle plate and a bypass baffle plate, a smoke inlet of the smoke inlet pipeline is communicated with the smoke exhaust pipeline, a smoke outlet of the smoke inlet pipeline is communicated with a smoke inlet of the wet-type electric precipitator, a smoke inlet of the smoke outlet pipeline is communicated with a smoke outlet of the wet-type electric precipitator, a smoke outlet of the smoke outlet pipeline is communicated with the smoke exhaust pipeline, the inlet baffle is arranged on the smoke inlet pipeline, the outlet baffle is arranged on the smoke outlet pipeline, and the bypass baffle is arranged on the smoke exhaust pipeline, and the bypass baffle is arranged between the smoke inlet of the smoke inlet pipeline and the smoke outlet of the smoke outlet pipeline. Compared with the prior art, the installation cost and the installation difficulty are effectively reduced, and other systems of the unit are not affected.

Description

technical field [0001] The invention relates to the field of wet electric dust removal, in particular to a wet electric dust removal device used in coal-fired power plants. Background technique [0002] The typical technical route for the collaborative treatment of ultra-low emission of flue gas in coal-fired power plants includes: the technical route for collaborative treatment of flue gas with low-temperature electrostatic precipitator technology as the core and the technical route for collaborative flue gas treatment with wet electrostatic precipitator technology as the core. Wet electrostatic precipitator (WESP) can effectively capture pollutants with low capture efficiency of other flue gas treatment equipment (such as PM2.5, SO3 acid mist, etc.), eliminate "gypsum rain", and can reach the level that other pollutant control equipment is difficult to achieve extremely low emission limits. At present, the flue gas treatment process of domestic coal-fired power plants gen...

AI Technical Summary

Problems solved by technology

The existing dedusting process has the problem of poor treatment of toxic heavy metals produced during the denitrification process, fine particles not collected by the dedusting system, and sulfur trioxide and gypsum entrainment produced by the desulfurization system. Therefore, wet electrostatic precipitators are chosen to be installed in wet desulfurization equipment Then it becomes the best choice

[0003] Newly built coal-fired power plant equipment can start directly from the design level, install wet electrostatic precipitator equipment during construction, and complete the coordinated treatment of ultra-low emission of flue gas, but for the existing coal-fired power plant absorption tower, how to carry out wet electrostatic precipitator Installation and control have become a thorny issue, requiring the unit to be shut down, and the transformation takes a long time, the installation cost is high, and the construction is difficult

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