Circulating slurry sprinkling device for desulfurization of flue gas

A spray device and slurry technology, which are used in the separation of dispersed particles, chemical instruments and methods, separation methods, etc., can solve the problems of wear at the interface between spray pipes and absorption towers, insufficient mixing of flue gas and circulating slurry, and desulfurization efficiency. Further improve and other problems, to achieve the effect that the equipment is not easy to be damaged, prevent wear and leakage, and facilitate processing and on-site installation.

Active Publication Date: 2006-10-11
BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENG +1
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a circulating slurry spraying device used in a flue gas desulfurization absorption tower, to solve the problems of insufficient mixing of flue gas and circulating slurry, and to further improve the desulfurization efficiency; Problems with wear and leakage

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  • Circulating slurry sprinkling device for desulfurization of flue gas
  • Circulating slurry sprinkling device for desulfurization of flue gas
  • Circulating slurry sprinkling device for desulfurization of flue gas

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Embodiment Construction

[0026] For implementation examples, see Figure 1-3 , the flue gas desulfurization circulating slurry spraying device is arranged in layers in the absorption tower 1, and each layer of spraying device consists of two parallel spraying main pipes 2, a spraying branch pipe 3 branched from the spraying main pipe, and a spraying branch pipe from the spraying branch pipe Two-way nozzles 4 separated from both sides are interwoven into a net-like spray layer.

[0027] Two parallel spray main pipes 2 pass through the opening of the support beam 5 in the absorption tower and are supported by a single beam. The above support beam is horizontally fixed in the absorption tower. The part is placed in the sliding support 8 of the absorption tower wall. The support of the spray layer is supported by a single beam, and a hole is opened in the middle of the support beam, and the spray main pipe passes through the opening.

[0028] A pipe joint 6 with a flange is welded on the absorption towe...

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Abstract

The invention relates to a smoke desulfuration cycle slurry spray device, which are layered in the adsorption tower. Each spray device is formed by at least two parallel spray main tube and the spray sub tubes branched from the spray main tube. The dual-direction ejectors that branched from the spray sub tubes are interlaced into mesh spray layer; two parallel spray main tubes are through the hole of support beam inside the adsorption tower, and horizontally fixed via single-beam support. The invention can solve the problems that not enough mixed between the smoke and cycle slurry; lower desulfuration effect; and easy abrasion and leakage at the interface between the spray tubes and the adsorption tower. The invention can be used in wet smoke desulfuration adsorption tower to utilize the limestone or lime slurry to adsorb the sulfur dioxide and sulfur trioxide.

Description

(1) Technical field [0001] The invention relates to a circulating slurry spraying device used in a limestone / lime wet flue gas desulfurization system. (2) Background technology [0002] The vast majority of power plants and industrial boilers in my country usually use fossil fuels such as coal and oil. Due to the unstable source, unstable quality and high sulfur content of fossil fuels, a large amount of harmful substances such as sulfur dioxide will be produced during the combustion process. In order to remove sulfur dioxide in the flue gas of power plants and boilers, limestone-gypsum wet flue gas desulfurization absorption towers are widely used in large power plant boilers. One of the most important equipment in the absorption tower is the spray device. The traditional spraying device is generally welded on the inner wall of the absorption tower, and is mainly composed of expensive alloy steel spraying pipes, which are connected with one-way nozzles. Due to the unreason...

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 赵禹汪德志王小平张方
Owner BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENG
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