Flue gas desulfurization and denitrification treatment method for coal-fired power plant

Abstract

The invention relates to a flue gas desulfurization and denitrification treatment method for a coal-fired power plant. A workbench, a collecting device and a treatment device are included. The collecting device is fixedly installed at the upper end of the workbench. The treatment device is fixedly mounted at the upper end of the collecting device. The treatment device comprises a treatment tank, an air inlet pipe, a filter frame, a feeding pipe, a motor, a stirring frame and a valve. According to the invention, the flue gas is primarily filtered through the treatment device, a filtering part is cleaned, the problem that the service life and using effect of the filtering part are reduced due to too many impurities accumulated on the surface of the filtering part is prevented, and the flue gas can completely react with a reagent; and the reacted liquid is filtered through the collecting device, the surface of a filtering plate is cleaned, so that the situation in which the filtering plate is blocked and the filtering effect is influenced due to the fact that too many sediments are accumulated on the surface of the filtering plate is prevented.

Description

technical field [0001] The invention relates to the technical field of flue gas treatment in power plants, in particular to a desulfurization and denitrification treatment method for flue gas in coal-fired power plants. Background technique [0002] Coal accounts for more than 70% of my country's energy structure. Coal combustion will produce a series of air pollutants such as sulfur dioxide and nitrogen oxides, which in turn will cause environmental problems such as acid rain and photochemical smog. Therefore, the national environmental department requires that newly-built coal-fired units must simultaneously build desulfurization and denitrification facilities to improve the environmental pollution of power plants. [0003] In the process of desulfurization and denitrification treatment of flue gas, due to the physical and chemical structure limitations of flue gas, the following problems exist in the actual operation process: [0004] (1) Traditional flue gas desulfurizat...

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Problems solved by technology

[0004] (1) Traditional flue gas desulfurization and denitrification treatment equipment needs to filter the treated flue gas for the first time in the process of processing flue gas. The surface of the filter parts is easy to produce solid particles to adhere to and accumulate, which is easy to cause the use of filter parts. Reduced lifetime, resulting in high frequency replacement of filter parts, resulting in higher tooling costs

[0005] (2) Traditional flue gas desulfurization and denitrification treatment equipment needs to filter the reacted liquid during the process of flue gas treatment, which is very easy to cause the filter plate to be blocked due to the large amount of sediment on the surface of the filter plate. affect filter quality

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