Adjustable louver window type desulfurization absorption tower

Abstract

The invention provides an adjustable louver window type desulfurization absorption tower. The adjustable louver window type desulfurization absorption tower comprises an absorption tower body, an absorption tower inlet arranged at the lower middle part of the absorption tower body, an absorption tower outlet arranged at the top of the absorption tower body, spraying layers and a demister which are arranged in the absorption tower body and at the upper part of the absorption tower inlet in sequence, and a slurry circulating pump which is arranged at the bottom of the absorption tower body and is used for pumping slurry of a bottom slurry tank to the spraying layers for atomizing and spraying; the adjustable louver window type desulfurization absorption tower further comprises an adjustable louver window type flow equalization device which is arranged between an upper edge of the absorption tower inlet and the spraying layer of the bottommost layer or is arranged between the different spraying layers and is used for adjusting a louver window blade angle online; the flow speed of flue gas in the absorption tower and the liquid hold-up amount on a louver window blade can be adjusted through adjusting the louver window blade angle, so that the system resistance and efficiency are adjusted; the problem of an existing limestone-gypsum wet-process absorption tower that different load working conditions are difficult to adjust is solved; the adjustable louver window type desulfurization absorption tower has the advantages of high desulfurization efficiency, low energy consumption, flexibility in operation and adjustment and the like.

Description

technical field [0001] The invention relates to the technical field of flue gas desulfurization, in particular to an adjustable shutter type desulfurization absorption tower. [0002] technical background [0003] The SO 2 The emission requirement is 35mg / m 3 To meet the ultra-low emission limits, it is necessary to improve the efficiency of existing desulfurization facilities to improve desulfurization efficiency. Many absorption towers have adopted the modification scheme of adding porous trays. Although it can ensure a high desulfurization efficiency, due to the fixed opening ratio of the trays, it is not suitable for different load conditions and inlet SO 2 When the concentration changes, the operation adjustment flexibility of the absorption tower is poor, and the energy consumption is relatively high. Contents of the invention [0004] The purpose of the present invention is to provide an adjustable louver type desulfurization absorption tower, which solves the pro...

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Problems solved by technology

[0004] The purpose of the present invention is to provide an adjustable louver type desulfurization absorption tower, which solves the problem of difficulty in adjusting different load conditions of the existing limestone-gypsum wet absorption tower, and has the advantages of high desulfurization efficiency, low energy consumption, flexible operation adjustment, etc.

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