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Liquid film dedusting device and desulfurizer dedusting rectification system with same

A technology of dust removal device and desulfurization tower, which is applied in combination device, use of liquid separation agent, dispersed particle separation, etc., can solve the problems affecting the living environment and entrainment of residents around the power plant, reduce the risk of blockage, avoid secondary pollution, The effect of reducing the amount of entrainment

Inactive Publication Date: 2016-06-22
中国大唐集团科学技术研究总院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the other hand, in recent years, in order to solve the problem of boiler flue gas pollutant emissions, coal-fired power plants have added and transformed dust removal, denitrification, and desulfurization systems. Among them, wet desulfurization technology has been widely used. The entrainment of gypsum droplets caused the problem of gypsum rain, which seriously affected the living environment of residents around the power plant

Method used

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  • Liquid film dedusting device and desulfurizer dedusting rectification system with same
  • Liquid film dedusting device and desulfurizer dedusting rectification system with same
  • Liquid film dedusting device and desulfurizer dedusting rectification system with same

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Embodiment 1

[0027] see Figure 1-2 As shown, a desulfurization tower dedusting rectification system of a preferred embodiment of the present invention includes a desulfurization tower 5 and a liquid film dedusting device. Header 112, return water header 113, circulating water pump 10 and circulating waterway 12, circulating water pump 10 and circulating waterway 12 are located outside the desulfurization tower 5, the distance between two adjacent layers of dust removal units 11 is 80 mm, and each layer of dust removal units 11 includes several The circular tubes 111 arranged side by side and the distance between the circular tubes 111 is 100mm, the circular tubes 111 of the two adjacent layers of dust removal units 11 are arranged in parallel and staggered to form a tubular dust removal assembly, the water inlet of each circular tube 111 is connected to the water inlet The headers 112 are connected, the water outlet of each round pipe 111 is connected with the return water header 113, and...

Embodiment 2

[0040] Such as Figure 3-4 As shown, the desulfurization tower dedusting rectification system of a preferred embodiment of the present invention comprises a desulfurization tower 5 and a liquid film dedusting device, and the liquid film dedusting device comprises a dedusting assembly consisting of two layers of dedusting units (11), a water inlet coupling Tank 112, return water header 113, circulating water pump 10 and circulating waterway 12, the distance between two adjacent layers of dust removal units 11 is 3m, and each layer of dust removal units 11 includes several baffles 111 arranged in parallel and adjacent baffles The distance between 111 is 30 mm. Preferably, the baffles 111 are existing baffles transformed into hollow baffles, and the baffles 111 of the adjacent two layers of dust removal units 11 are arranged in parallel and staggered to carry out flue gas. Rectification, forming a baffle type dust removal assembly and a roof-like arrangement, the inclination angl...

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Abstract

The invention relates to a liquid film dedusting device which is used in a desulfurizer, has a simple structure, can be used for effectively removing smoke dust and liquid drops in flue gas, and is free of secondary pollution. The liquid film dedusting device comprises a dedusting assembly formed by multiple layers of dedusting units, a water inlet header, a water return header, a circulating water pump and a circulating waterway, wherein each layer of dedusting units comprises a plurality of diversion pieces in parallel, a gap is formed between each two adjacent diversion pieces, the diversion pieces of each two adjacent layers of dedusting units are staggered in parallel to rectify flue gas, a water inlet of each diversion piece is communicated with the water inlet header, a water outlet of each diversion piece is communicated with the water return header, the water return header is communicated with the water inlet header via the circulating waterway and the circulating water pump in sequence to form a continuous path, the continuous path is filled with a cooling liquid, and the cooling liquid is used for cooling via air cooling when flowing in a pipeline outside the desulfurizer and is driven by the circulating pump to flow in a continuous circulating manner to precool vapor and liquid drops in flue gas in the desulfurizer to form liquid films on the outer walls of the diversion pieces.

Description

technical field [0001] The invention relates to the technical field of air pollutant control, in particular to a liquid film dedusting device used for purifying waste gas in a thermal power plant and a desulfurization tower dedusting rectification system using the device. Background technique [0002] my country's resource conditions of "rich in coal, low in gas, and lack of oil" determine the energy structure dominated by coal. The latest data released by the China Electricity Council shows that for a long time to come, the role of coal in the energy structure will be The dominant position will not change, and it is the basic energy that our country can rely on for a long time. Although my country has abundant reserves of coal resources, low-quality coal with high ash and high sulfur content accounts for more than 30%. Among them, 50% to 60% of coal resources are used for power generation, which has become the main source of coal-burning pollutants. Coal is directly burned. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D50/00B01D47/00B01D53/80B01D53/48B01D53/00B01D53/50
CPCB01D47/00B01D50/00B01D53/002B01D53/48B01D53/50B01D53/80B01D50/40
Inventor 郭婷婷邱桂芝王海刚王艺霏贾嘉张冠军胡冬陈坤洋张志刚高智溥吴智泉
Owner 中国大唐集团科学技术研究总院有限公司
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