Ultra-low emission absorption tower

An absorption tower and ultra-low technology, applied in the field of absorption towers, can solve the problems of inability to meet ultra-low emission requirements, excessive dust emission concentration, and low dust removal efficiency of absorption towers, so as to increase spray coverage and reduce maintenance and replacement. Cost and ease of installation

Active Publication Date: 2015-10-07
CHINA HUADIAN ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will easily lead to: on the one hand, the pressure loss at the side wall is relatively large; on the other hand, due to the spray arrangement structure, the concentration of the slurry near the tower wall is not as high as that in the center of the tower, which is not conducive to the SO in the flue gas. 2 and dust removal
[0006] Since the flue gas has been treated by dust removal and environmental protection facilities such as electrostatic precipitators or bag filters before entering the absorption tower, the particle size of the dust particles e

Method used

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Experimental program
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Effect test

Embodiment 1

[0035] Embodiment 1 of the present invention: as figure 1As shown, an ultra-low emission absorption tower includes an absorption tower body 1, a mist eliminator 2, a spray layer 3 and a slurry pool 4, the slurry pool 4 is located at the bottom of the absorption tower body 1, and the mist eliminator 2 is located at the bottom of the absorption tower body 1. In the upper part of the absorption tower body 1, the spray layer 3 is set under the demister 2, and the bottom of the spray layer 3 is provided with a slurry distribution plate 5; the bottom of each spray layer 3 is equipped with a slurry guide Ring 6; mist eliminator 2 is composed of three sets of roof type mist eliminators 7 and one set of pipe type mist eliminators 8, the pipe type mist eliminators 8 are located below the bottom of the roof type A condensation system 9 is provided between the mist eliminator 7 and the middle roof ridge type mist eliminator 7 . The spray layer 3 is more than 2 layers, and the uppermost spra

Embodiment 2

[0040] Embodiment 2 of the present invention: as figure 1 As shown, an ultra-low emission absorption tower includes an absorption tower body 1, a mist eliminator 2, a spray layer 3 and a slurry pool 4, the slurry pool 4 is located at the bottom of the absorption tower body 1, and the mist eliminator 2 is located at the bottom of the absorption tower body 1. In the upper part of the absorption tower body 1, the spray layer 3 is set under the demister 2, and the bottom of the spray layer 3 is provided with a slurry distribution plate 5; the bottom of each spray layer 3 is equipped with a slurry guide Ring 6; mist eliminator 2 is composed of three sets of roof type mist eliminators 7 and one set of pipe type mist eliminators 8, the pipe type mist eliminators 8 are located below the bottom of the roof type A condensation system 9 is provided between the mist eliminator 7 and the middle roof ridge type mist eliminator 7 . The spray layer 3 is more than 2 layers, and the uppermost spr

Embodiment 3

[0045] Embodiment 3 of the present invention: as figure 1 As shown, an ultra-low emission absorption tower includes an absorption tower body 1, a mist eliminator 2, a spray layer 3 and a slurry pool 4, the slurry pool 4 is located at the bottom of the absorption tower body 1, and the mist eliminator 2 is located at the bottom of the absorption tower body 1. In the upper part of the absorption tower body 1, the spray layer 3 is set under the demister 2, and the bottom of the spray layer 3 is provided with a slurry distribution plate 5; the bottom of each spray layer 3 is equipped with a slurry guide Ring 6; mist eliminator 2 is composed of three sets of roof type mist eliminators 7 and one set of pipe type mist eliminators 8, the pipe type mist eliminators 8 are located below the bottom of the roof type A condensation system 9 is provided between the mist eliminator 7 and the middle roof ridge type mist eliminator 7 . The spray layer 3 is more than 2 layers, and the uppermost spr

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Abstract

The invention discloses an ultra-low emission absorption tower, which comprises an absorption tower body, a demister, spraying layers and a slurry trough, wherein the slurry trough is arranged at the bottom in the absorption tower body; the demister is arranged at the upper part in the absorption tower body; the spraying layers are arranged below the demister; a slurry distribution plate is arranged below the lowermost spraying layer; a slurry flow guide ring is arranged below each spraying layer; the demister consists of three groups of ridge-type demisters and a group of tubular demisters; the tubular type demisters are arranged below the lowermost layer of the ridge-type demisters; a condensation and coagulation system is arranged between the lowermost layer of the ridge-type demisters and the middle layer of the ridge-type demisters. The ultra-low emission absorption tower can be used for removing tiny dust with a small particle size from smoke of a power plant, so that the spraying coverage rate is effectively increased, the efficiency of removing SO2 and dust from the smoke is improved, and the inner wall of the absorption tower body can be effectively prevented from being abraded; in addition, smoke can be guided, so that smoke can flow to a spraying dense region to relieve pressure loss of the edge wall.

Description

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Claims

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Application Information

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Owner CHINA HUADIAN ENG
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