Wet method flue gas-desulfurizing absorption tower with dual speed sprinkling and desulfurizing absorption method thereof

A wet desulfurization and absorption tower technology, applied in separation methods, chemical instruments and methods, dispersed particle separation, etc., to save energy, strengthen reaction effects, and reduce power consumption

Active Publication Date: 2006-10-11
BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of this invention is to propose a two-speed spray flue gas wet desulfurization absorption tower and its desulfurization absorption method to solve the problems of making full use of the space at the entrance of the absorption tower, increasing the reaction time between slurry and flue gas, and improving desulfurization efficiency

Method used

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  • Wet method flue gas-desulfurizing absorption tower with dual speed sprinkling and desulfurizing absorption method thereof
  • Wet method flue gas-desulfurizing absorption tower with dual speed sprinkling and desulfurizing absorption method thereof

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Embodiment 1

[0022] Embodiment one sees figure 1 , this kind of double-speed spray flue gas wet desulfurization absorption tower, the top of the tower body is connected with the raw smoke inlet pipe 1, the bottom of the tower body is the slurry pool 2, the middle part of the tower body is the desulfurization reaction section 3, and the desulfurization reaction section is connected with the clean smoke The outlet pipe 12 is connected, and the demister 13 is set in the clean smoke outlet pipe 12; the first-stage spraying device 4 is installed at the entrance of the raw smoke inlet pipe on the top of the tower body, and the nozzles of the above-mentioned spraying device are sprayed in two directions up and down. Hollow cone two-way nozzle for limestone slurry. The first-stage spraying device communicates with the slurry pool 2 through the first circulating pump 6, and the second-stage spraying device 5 is installed above the clean smoke outlet pipe in the middle of the tower body, and the sec...

Embodiment 2

[0044] Embodiment two see figure 2 , The difference from Embodiment 1 is that the second-stage spraying device has two layers, which are respectively connected to the slurry tank through the second circulation pump 7 and the third circulation pump 14 .

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Abstract

The invention relates to a dual-speed spray smoke wet desulfuration adsorption tower and relative desulfuration adsorption method. Wherein, the middle of tower is connected to the purified smoke outlet tube; the outlet of said tube is mounted with a defroster; the top of tower is connected to the former smoke inlet tube; the bottom of tower is a slurry tank; the middle of tower is a desulfuration reaction section; the inlet of the connection between the former smoke inlet tube and the top part of tower is mounted with the first-stage spray device; the purified smoke outlet tube at the middle of tower is mounted with the second-stage spray device; said two spray devices are individually through to the limestone slurry cycle pump outside the adsorption tower and the slurry tank at the bottom of adsorption; the slurry tank is inserted with forced oxygenation air tube and the mixing oar; the bottom of tower is connected to the gesso outlet pump via the gesso outlet tube. The invention can effectively utilize the space at the inlet of adsorption tower; increase the area of first-stage adsorption reaction section to react the smoke with the slurry in two different flow speed; therefore, the smoke can react with the slurry concurrent or reversed to strengthen the reaction effect, with saved energy and improved desulfuration efficiency.

Description

(1) Technical field [0001] The invention relates to a flue gas wet desulfurization device and method. (two), background technology [0002] The principle of the existing flue gas wet desulfurization is to use limestone slurry to react with sulfur dioxide in the flue gas to convert sulfur dioxide into gypsum to achieve the purpose of removing sulfur dioxide in the flue gas. The principle is as follows: [0003] Neutralization reaction: <chemistry num="001"> <chem file="200610200291_cml001.xml" / > < / chemistry> [0004] Oxidation reaction: <chemistry num="002"> <chem file="200610200291_cml002.xml" / > < / chemistry> [0005] The traditional flue gas desulfurization reactor-absorption tower is mainly divided into three types: spray tower, liquid column tower and bubble tower, among which spray tower and liquid column tower are widely used in the field of wet desulfurization equipment in power stations. Both the traditional spray tower and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/50B01D53/80B01D53/96
Inventor 张华杨东赵禹
Owner BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENG
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