Flue gas desulfurization system
A desulfurization system and flue gas technology, applied in fixed filter element filter, filtration separation, dispersed particle separation, etc., can solve the problem that the flue gas desulfurization system cannot operate normally.
Active Publication Date: 2016-01-13
CHINA SHENHUA ENERGY CO LTD +2
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Problems solved by technology
[0003] However, once the Y-shaped filter and the conical filter are clogged, they can only be cleaned after the Y-shaped filter or the conical filter is removed, which leads to the failure of the flue gas desulfurization system to operate normally.
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[0042] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0043] Such as figure 1 with figure 2 As shown, the present invention provides a flue gas desulfurization system, the flue gas desulfurization system includes a pulping system 100, an absorption tower 200 and a gypsum dehydration system 300 connected in sequence, between the pulping system 100 and the absorption tower 200 and / or the absorption A screen box 400 is arranged between the tower 200 and the gypsum dehydration system 300, wherein the screen box 400 includes a box body 410 and a filter screen 420 arranged in the box body 410, and the inside of the box body 410 includes mutually connected working sides 411 and the cleaning side 412, the filter screen ...
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The invention discloses a flue gas desulfurization system which comprises a pulping system, an absorption tower and a gypsum dewatering system which are sequentially communicated, wherein a filter screen box is arranged between the pulping system and the absorption tower and / or between the absorption tower and the gypsum dewatering system and comprises a box body and a filter screen arranged in the box body; the box body comprises a working side and a cleaning side which are mutually communicated; the filter screen can move between the working side and the cleaning side; a top plate at the working side is provided with a material inlet; a bottom plate at the working side is provided with a material outlet; and the top of the cleaning side is provided with a cleaning port. Since the filter screen in the flue gas desulfurization system can move between the working side and the cleaning side of the filter screen box, on-line cleaning can be performed on the filter screen without influencing the normal operation of the flue gas desulfurization system.
Description
technical field [0001] The invention relates to the treatment of waste gas generated during thermal power generation, and in particular relates to a flue gas desulfurization system. Background technique [0002] At present, the limestone-gypsum wet desulfurization method is often used to treat the waste gas generated during thermal power generation. At this time, a flue gas desulfurization system is used. The flue gas desulfurization system includes a pulping system, an absorption tower and a gypsum dehydration system connected in sequence. Between the pulping system and the absorption tower and / or the absorption A Y-shaped screen or a conical screen is arranged between the tower and the gypsum dehydration system. [0003] However, once the Y-shaped filter screen and the conical filter screen are blocked, they can only be cleaned after the Y-shaped filter screen or the conical filter screen is removed, which leads to the failure of the flue gas desulfurization system to ope...
Claims
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IPC IPC(8): B01D29/62B01D53/80B01D53/50
Inventor 高小春安鸿王森李伯成
Owner CHINA SHENHUA ENERGY CO LTD