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Recirculation type semidry process reaction tower for purifying flue gas and technique thereof

A technology for cleaning flue gas and reaction towers, which is applied in separation methods, chemical instruments and methods, and dispersed particle separation to achieve the effect of improving efficiency

Inactive Publication Date: 2008-12-17
上海融新能源环境科技有限公司 +5
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Of course, the flue gas within this safe distance will have no chance to touch the liquid absorbent particles, so the flue gas does not undergo deacidification reaction within this range, which is the boundary escape phenomenon that cannot be overcome by the existing rotary spraying process

Method used

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  • Recirculation type semidry process reaction tower for purifying flue gas and technique thereof
  • Recirculation type semidry process reaction tower for purifying flue gas and technique thereof
  • Recirculation type semidry process reaction tower for purifying flue gas and technique thereof

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Embodiment Construction

[0019] Such as figure 1 As shown, the clean flue gas recirculation type semi-dry reaction tower of the present invention includes the original flue gas inlet 1, the original flue gas rectification deflector 2, the rotary sprayer 3, the reaction tower tower body 4, and the recirculation net flue gas header 5 , Annular net flue gas nozzle 6, net flue gas outlet 7 and ash outlet 8. The original flue gas inlet 1 and the original flue gas rectifying deflector 2 are located at the top of the reaction tower, and a rotary sprayer 3 is installed at the center of the top of the reaction tower, the net flue gas outlet 7 is located at the bottom of the reaction tower, and the ash discharge port 8 is located at the bottom of the reaction tower . Three circles of annular net flue gas nozzles 6 are arranged on the wall surface of the approximately middle height position of the reaction tower body 4, and the annular net flue gas nozzles 6 are distributed on the circumferential wall surface o...

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Abstract

The invention discloses a clean flue gas recycling semi-dry reaction tower which includes a raw flue gas inlet, a raw flue gas rectifying and guide plate, a rotary sprayer, a reaction tower body, a clean flue gas outlet and an ash exhaust opening. The reaction tower also includes a recycling clean flue gas collecting container and a clean flue gas spout; the wall surface of the reaction tower body is provided with a circle or a plurality of circles of annular clean flue gas spouts; a recycling clean flue gas collecting container is arranged outside the location of the annular clean flue gas spout. Besides, the invention also discloses a clean flue gas recycling semi-dry technique which is additionally provided with a clean flue gas recycling step. The invention can effectively overcome the boundary escape of the prior art, stop the wall surface of the reactor tower to be hardened, improve the reaction efficiency and can be applied to purify the acidic gases (HCl, SOx) and heavy metal ions in the flue gas at the outlet of a boiler for burning garbage.

Description

technical field [0001] The present invention relates to a waste incineration flue gas treatment equipment, in particular to a clean flue gas recycling semi-dry reaction tower for tail gas treatment after waste incineration; in addition, the present invention also relates to the above-mentioned net flue gas recycling semi dry process. Background technique [0002] The flue gas produced during garbage incineration contains a variety of harmful substances, such as acid gases: HCl, HF, SO 2 , NO X 、H 2 S, etc., as well as dioxins, furans, fly ash, and heavy metal vapors Pb, Hg, Cd, etc. The currently used treatment processes include: dry method, semi-dry method, wet method, etc. [0003] Due to the low efficiency of pure dry deacidification, it is generally rarely used. [0004] Although the efficiency of wet deacidification is very high, it is seldom used due to the large equipment, large area and high investment. [0005] At present, the semi-dry process is the most used ...

Claims

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Application Information

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IPC IPC(8): B01D53/80
Inventor 曲云罗传奎温鹏飞李建平许艳秋
Owner 上海融新能源环境科技有限公司
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