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A water washing deep dust removal device

A technology of water washing dust removal and dust removal device, which is applied to the separation of dispersed particles, chemical instruments and methods, and the use of liquid separation agents. It can solve the problems of large floor area, increased dust, and the inability to achieve low dust concentration standards at the outlet of flue gas pipes. , to achieve the effect of reducing the amount of dust carried

Active Publication Date: 2016-04-06
BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] For the above two methods of flue gas dust treatment, due to some objective reasons, the first method may not be able to achieve the low concentration standard of dust at the flue gas pipe outlet, and wet desulfurization will increase part of the dust, not all projects use this method can meet emission standards
Although adopting the second method can play a very good dust removal effect, the method has high investment costs and a large footprint.

Method used

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  • A water washing deep dust removal device
  • A water washing deep dust removal device
  • A water washing deep dust removal device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Thermal power plants and other enterprises need to reduce the dust content in the flue gas in order to meet the increasing flue gas emission standards. The usual method is to install a dust collector (electric dust collector or bag dust collector) in front of the induced draft fan or use wet desulfurization The downstream installation of wet electrostatic precipitator. The technical defect of the existing technology is that it is difficult to solve the technical problem of dust reaching the standard or even ultra-low emission, and the investment cost of the existing device or dust removal process is high, and the floor area is large. In view of the above problems, this embodiment designs a new type of water washing deep dust removal device, which is installed downstream of the demister of the wet desulfurization absorption tower, and the flue gas enters the flue 1 of the washing section from the entrance of the wet desulfurization absorption tower 17, Wash the flue gas ...

Embodiment 2

[0056] Such as figure 2 As shown, the water washing deep dust removal device described in this embodiment is basically similar to that of Embodiment 1, and the main components are still the washing section flue 1, the circulating pool 2, the water washing spray layer 3, the water washing dust removal circulating pump 4, the water washing Dust and mist eliminator flushing water pump 5, absorption tower mist eliminator flushing water pump 6, water washing dust and mist eliminator 7, first flushing nozzle 8 and second flushing nozzle 9, etc. also, figure 2 It is shown that the deep water washing dedusting device described in this embodiment also includes a process water supply interface 18, a packing layer 10 and a washing water collecting device 11 for water washing dedusting and mist eliminator.

[0057]The difference between this embodiment and the deep water washing dedusting device described in Embodiment 1 is that the flue 1 in the washing section is an integral flue. T...

Embodiment 3

[0061] The water washing deep dust removal device described in this embodiment is another preferred solution of the present invention, such as image 3 As shown, it mainly includes washing section flue 1, circulating pool 2, water washing spray layer 3, water washing dust removal circulation pump 4, water washing dust removal mist eliminator flushing water pump 5, absorption tower mist eliminator flushing water pump 6, water washing dust removal mist eliminator 7. The first flushing nozzle 8 and the second flushing nozzle 9, etc. also, image 3 It is shown that the deep water washing dedusting device described in this embodiment also includes a process water supply interface 18, a packing layer 10 and a washing water collecting device 11 for water washing dedusting and mist eliminator.

[0062] The design of the washing section flue 1 of the water-washing depth dust removal device described in this embodiment is the same as that of embodiment 1, that is, the washing section f...

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Abstract

The invention discloses a deep washing dust removal device. The device mainly comprises a washing section flue, a circulating pool, a washing spray layer, a washing dust removal circulating pump, a washing dust removal demister flushing water pump, an absorption tower demister flushing water pump, a washing dust removal demister, a first flushing spray head and a second flushing spray head. Besides, the device further comprises a filler layer, a washing dust removal demister flushing water collecting device and a process water supplement port. The deep washing dust removal device is installed in a downstream position of a wet desulfurization absorption tower, on one hand, part of dust can be caught continuously, on the other hand, dust-containing drops can be diluted, and finally, mist drops in flue gas can be caught by the washing dust removal demister, so that the carrying quantity of the dust in the flue gas can be decreased, and the flue gas is deeply treated. With the adoption of the device, up-to-standard emission and even ultralow emission of the dust in the flue gas are effectively realized, a certain desulfurization role can be played, the investment cost is reduced substantially, the land is saved, and the device is higher in arrangement and installation flexibility.

Description

technical field [0001] The invention belongs to the technical field of flue gas dedusting, and relates to a dedusting device, in particular to a deep water washing dedusting device installed downstream of a wet desulfurization device. The water washing deep dust removal device of the present invention can realize the purpose of deep cleaning the flue gas. Background technique [0002] With the increasingly serious problem of environmental pollution and the gradual enhancement of people's awareness of environmental protection, governments around the world, especially our government, are gradually implementing strict coal-fired flue gas emission standards in terms of flue gas emissions. A large amount of flue gas produced by thermal power plants and other enterprises needs to undergo procedural flue gas desulfurization and dust removal before being discharged into the atmosphere. Flue gas desulfurization treatment methods can often be divided into dry, semi-dry, and wet desul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D47/12
CPCB01D47/12
Inventor 陈振宇陈鸥陈建劳俊王利李晓金
Owner BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENG
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