Anti-plugging demister

A mist eliminator and anti-clogging technology, applied in chemical instruments and methods, dispersed particle separation, separation methods, etc., to achieve the effects of preventing blade scaling and clogging, good flushing ability, and enhanced trapping ability

Inactive Publication Date: 2010-01-20
中建中环新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Technical problem: In order to overcome the problems existing in the existing demisters, the present invention provides an anti-clogging demister design, which is composed of asymmetric blades, which can well prevent fouling and jam

Method used

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Embodiment Construction

[0020] The overall structural type of the mist eliminator of the present invention is the same as that of the traditional mist eliminator, including the flushing device 1 and the mist eliminator body 2 - the mist eliminator blades 21 and the mist eliminator frame 22 . However, in order to realize the anti-clogging function, the present invention uses CFD simulation and test means to specially design the demister blades 22 . The blades of the traditional mist eliminator have a symmetrical structure, but the present invention adjusts the geometric dimensions of the blades according to the actual working environment of the mist eliminator. Specifically, the geometric shape of the mist eliminator blades of the present invention has three changes in total, which can be compared figure 2 , image 3 :

[0021] 1. Change the structure of the traditional demister blade inlet section 211 and the flue gas flow to form a certain angle α between the inlet section (or introduction sectio...

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PUM

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Abstract

The invention discloses an anti-plugging demister which comprises a demister body and flushing devices, wherein the demister body comprises a demister blade and a demister frame: and the flushing devices are arranged at two ends of the demister blade: the demister blade comprises an introduction section, a front baffling section, a rear baffling section and an eduction section; the demister blade has an asymmetrical structure; an included angle between the introduction section and the flue gas direction is 3-15 degrees, and the height of the introduction section is 0.15-0.25 times of that of the demister blade; an included angle between the front baffling section and the flue gas direction is 40-65 degrees, and the height of the front baffling section is 0.2-0.3 time of that of the demister blade; and an included angle between the rear baffling section is 25-40 degrees. The demister reasonable distributes the liquid drop gathering capacity by specially designing the geometrical shapes of the demister blades and ensures that the scaling degree is favorably matched with the flushing capacity. The demister can keep the surfaces of the blades clean, prevent the blades from scaling and plugging and maintain the normal operation of a gas desulphurization system.

Description

technical field [0001] The invention relates to a mist eliminator for removing water mist in flue gas in wet flue gas desulfurization system (WFGD) or similar fields, and is a mist eliminator with stronger anti-clogging ability than general mist eliminators . Background technique [0002] Currently known mist eliminators in this field are mainly baffle plate mist eliminators. The demister is usually installed on the top of the absorption tower, and some are installed on the flue behind the absorption tower. Its function is to capture the moisture in the clean flue gas after desulfurization, and protect the subsequent pipelines and equipment from corrosion and contamination as much as possible. [0003] Mist eliminators usually consist of two parts: the demister body and the flushing device. The body of the mist eliminator is assembled from curved blades at a certain distance (usually 20-50mm) through fixtures, brackets, etc., and several deflected flue gas channels are fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D45/08
Inventor 缪明烽卢作基张志平陈茂兵
Owner 中建中环新能源有限公司
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