Wetting smoke dust-proof desulfurizing method

A new type of wet flue gas desulfurization technology, applied in separation methods, chemical instruments and methods, separation of dispersed particles, etc., to achieve good economic benefits, good desulfurization effect, and equipment simplification

Inactive Publication Date: 2005-12-28
王站魁 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The technical problem to be solved in the present invention is to overcome the defects of the existing industrial desulfurization technology and provide a new wet flue gas desulfurization and dust removal method

Method used

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  • Wetting smoke dust-proof desulfurizing method

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Embodiment Construction

[0018] Such as figure 1 As shown, the new wet flue gas desulfurization and dust removal method of the present invention, it is to introduce the flue gas into the lower part of the absorption tower, make it cool by the evaporation of water, the lower absorption area is strongly mixed with the washing liquid in a countercurrent manner, and then the flue gas passes through the reaction Droplet separator at the top of the column, draining from the side.

[0019] The present invention includes absorption tower absorption zone, oxidation zone and neutralization zone.

[0020] The washing liquid of the present invention is pumped out from the stock tank and sent to the nozzles of each layer arranged up and down in the reaction tower, and is evenly distributed in the reaction tower in the form of very fine particles through the hole cone nozzles in each layer. SO in flue gas 2 Washed and neutralized, the calcium sulfite formed is oxidized to gypsum by injecting air into the upper pa...

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Abstract

A process for desulfurizing and dusting the fume by wet method includes such steps as introducing the fume to the bottom of absorption tower, cooling it by water evaporating, mixing with washing liquid in counterflow mode, liquid drops separating at the top of reaction tower, and exhausting clean fume.

Description

technical field [0001] The invention relates to a novel wet flue gas desulfurization and dust removal method. Background technique [0002] In recent years, acid rain has spread rapidly in China. In the mid-1980s, the scope of acid rain was limited to Sichuan, Guizhou, Guangdong and Guangxi, and the affected area was about 1.7 million square kilometers. By the 1990s, acid rain had spread from southwest and south China to central and east China, and the area of ​​damage had expanded by more than 1 million square kilometers, accounting for 28% of the country's land area. Some cities such as Chongqing, Guiyang, Changsha, Nanchang, Nanjing, Shanghai, Hangzhou, and Fuzhou have become hardest hit by acid rain. The direct economic loss caused by acid rain in our country is about 20 billion yuan every year. With the increasingly stringent environmental protection regulations, it is imperative to carry out flue gas desulfurization. For a country like my country that mainly burns c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78
Inventor 王站魁杨建民
Owner 王站魁
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