Coal-fired power plant flue gas efficient purification device and method

A coal-fired power plant and purification device technology, applied in the field of exhaust gas purification, can solve problems such as unreachable, chimney corrosion, serious problems, etc., achieve reasonable design, reduce the probability of being corroded, and benefit the protection of the atmospheric environment

Active Publication Date: 2017-10-20
彭维明
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The flue gas produced by coal-fired power plants will be discharged to the atmosphere after treatment, but the existing technology is backward, and the NO in the flue gas produced by coal-fired power plants cannot x , SO x The complete removal of sulfuric acid rain and gypsum rain formed by particles, acid droplets, etc. makes the chimneys of coal-fired power plants severely corroded, and cannot meet the relevant standards, making air pollution more and more serious

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  • Coal-fired power plant flue gas efficient purification device and method
  • Coal-fired power plant flue gas efficient purification device and method
  • Coal-fired power plant flue gas efficient purification device and method

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Embodiment Construction

[0056] In order to make the purpose, technical solution and advantages of the present invention clearer, the following examples will be used in conjunction with the accompanying drawings to further describe the high-efficiency purification device for flue gas in coal-fired power plants of the present invention in detail. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0057] At present, due to technical reasons, the flue gas emitted by coal-fired power plants, NO x , SO x It cannot be separated from the flue gas to meet the relevant emission standards, resulting in the discharge of a large amount of harmful gases into the atmosphere, causing air pollution. Such as Figure 1-3 As shown, a coal-fired power plant flue gas efficient purification device is arranged between the boiler 100 and the chimney 1000 of the coal-fired power plant, and is used to purify the flue gas p...

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Abstract

The invention provides a high-efficiency purification device for flue gas in a coal-fired power plant, which is installed between the boiler and the chimney of the coal-fired power plant, and is used to purify the flue gas produced by the coal-fired power plant, including an economizer, an air preheater and an electrostatic precipitator It also includes denitration reactor, desulfurization tower, chemical scrubber and / or demister; boiler, economizer, denitration reactor, air preheater, electrostatic precipitator, desulfurization tower and chimney are connected in sequence, chemical scrubber And / or the demister is set between the desulfurization tower and the chimney; when the flue gas generated by the coal-fired power plant flows through the chemical scrubber, it mixes with the chemical reagents in the chemical scrubber and is washed. The invention also discloses a method for purifying flue gas of a coal-fired power plant. The design of the high-efficiency purification device for flue gas in coal-fired power plants is reasonable in design, and it performs special treatment for SOx, NOx, particulate matter, sulfuric acid rain and gypsum rain formed by acid droplets in the flue gas discharged from coal-fired power plants, and solves the problem of Corrosion problems in chimneys.

Description

technical field [0001] The invention relates to the technical field of exhaust gas purification, in particular to an efficient purification device and method for flue gas of a coal-fired power plant. Background technique [0002] With the increasingly prominent problems of environmental pollution in our country, especially the haze weather has brought increasingly serious impact on people's life and health, it is necessary to further reduce the discharge of pollutants and improve discharge standards. Therefore, future coal-fired power plants will have to meet emission standards for gas-fired power generation. The flue gas produced by coal-fired power plants will be discharged to the atmosphere after treatment, but the existing technology is backward, and the NO in the flue gas produced by coal-fired power plants cannot x , SO x The complete removal of sulfuric acid rain and gypsum rain formed by particles, acid droplets, etc. makes the chimneys of coal-fired power plants s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23J15/04
Inventor 彭维明
Owner 彭维明
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