An absorption tower for preventing flue gas backflow and its application
An absorption tower and flue gas technology, applied in flue gas desulfurization absorption towers, absorption towers and application fields that prevent flue gas backflow, can solve the problems of undiscovered patent publications, high cost of valves, difficult operation, etc., to avoid pollutants Leakage, less prone to failure, and low-cost effects
Active Publication Date: 2015-08-19
AEROSPACE ENVIRONMENTAL ENG
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Problems solved by technology
However, this method also has problems in operation: due to the deposition of Louis in the slurry pipe, it is necessary to vent the pipe during outage. This method will cause a siphon phenomenon when the return pipe is vented, and the slurry in the tower that is higher than the interface All sucked out, making operation difficult
[0005] This method can solve the problem of flue gas backflow, but due to the high installation position of the valve, for the convenience of operation, this part of the valve needs to be designed as an electric valve or a pneumatic valve. This kind of valve is expensive, and as mentioned above, each There are several return pipelines on the absorption tower, which results in a large investment for this scheme
[0006]
Through the search, no patent publications related to the patent application of the present invention have been found
Method used
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[0019] Hereinafter, the present invention will be further described in detail by taking the embodiment of the accompanying drawings as an example. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.
[0020] An absorption tower that prevents flue gas from flowing backwards, such as figure 1 As shown, the absorption tower includes an absorption tower body 3, a storage slurry section 10, an absorbent circulation pipeline 2, an absorption tower return pipeline interface 8, a flue gas inlet 11 and a flue gas outlet 1, and the absorption tower body can be Conventional desulfurization absorption tower in this technical field can be the absorption tower form of prior art, and this absorption tower is vertical reaction tower in the present embodiment;
[0021] The flue gas outlet is connected to the top of the absorption tower body or the side wall on the upper part of the tower top, and the flue gas inlet is...
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The invention relates to an absorption tower for preventing flue gas from flowing backward, the absorption tower comprises an absorption tower body, a slurry storage section, an absorbent circulation pipeline, an absorption tower reflux pipeline interface, a flue gas inlet and a flue gas outlet, an absorption tower slurry connection box device is arranged for communicating the absorption tower body with the slurry storage section, and the absorption tower slurry connection box device comprises a connection box device body, a reflux slurry pipeline interface, an air outlet and a slurry outlet pipeline interface. The absorption tower is provided with the absorption tower slurry connection box device, and the absorption tower slurry connection box device can effectively prevent the flue gas in the absorption tower from flowing backward to a slurry return pipeline, so that the problem of contaminant leakages in the absorption tower can be avoided, and the absorption tower is low in cost, reduces the production cost of equipment, is convenient in operation, not easy to fault, and convenient in run, and can be widely applied to flue gas desulfurization.
Description
technical field [0001] The invention belongs to the technical field of environmental protection, and relates to a flue gas desulfurization absorption tower, in particular to an absorption tower for preventing flue gas backflow and its application. Background technique [0002] In the field of flue gas desulfurization for air pollutant control, the absorption tower, as the core equipment, is widely used in wet flue gas desulfurization technology. The desulfurization slurry is stored at the bottom of the absorption tower, and the upper part is the flue gas reaction zone, which is filled with flue gas, and the operating pressure is 2.0-3.0kPa. In the desulfurization system, there are several pipelines for recovering slurry to return to the absorption tower to meet the requirements for water recycling in the system. In this way, several slurry return ports will be opened on the absorption tower. The slurry return port on the absorption tower is emptied of slurry during the per...
Claims
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IPC IPC(8): B01D53/18B01D53/80B01D53/48
Inventor 王硕王大勇杨晓东刘海伦范博
Owner AEROSPACE ENVIRONMENTAL ENG