Desulfurization and denitration absorption tower

Abstract

The invention discloses a desulfurization and denitration absorption tower. A chimney inlet is mounted at the lower part of the left sidewall of the desulfurization and denitration tower, an ammonia spray distribution tube, a denitration catalyst, a gas cap layer and desulfurization spraying layers are sequentially arranged in the desulfurization and denitration tower from bottom to top, a returnpipeline is mounted on the right sidewall of a position, provided with the gas cap layer, of the desulfurization and denitration tower, the return pipeline is connected with a slurry tank, three desulphurization circulating pumps are arranged in the slurry tank, demister layers are arranged in the top part of the desulfurization and denitration tower, a chimney outlet is mounted at the top end ofthe desulfurization and denitration tower, a layer of oxidation air distribution tubes is mounted in the bottom part of the slurry tank, an ammonia water supplementing pipeline is mounted at the upperpart of the slurry tank, the top of the slurry tank is provided with a stirrer, a demister flushing water pipeline is mounted on the desulfurization and denitration tower, and the demister flushing water pipeline is arranged over the demister layers. The desulfurization and denitration absorption tower has the advantages of scientific and reasonable design, simple structure, and convenience in use.

Description

Technical field: [0001] The invention relates to a desulfurization and denitration absorption tower, which belongs to the technical field of desulfurization and denitration absorption towers. Background technique: [0002] The desulfurization tower is the technical core of wet desulfurization, the denitrification reactor and its internal catalyst are the core equipment for flue gas denitrification, desulfurization is generally at the tail of the boiler; the floor area is generally large, and the denitrification reactor is generally before the boiler economizer , also occupying a larger area. Both desulfurization and denitrification can use ammonia water as a removal agent. Using ammonia water alone for desulfurization or denitrification will cause ammonia escape. Desulfurization and denitrification ammonia escape will increase ammonia consumption and cause unnecessary economic losses; desulfurization ammonia escape is easy The generation of aerosols will cause the dust at t...

AI Technical Summary

Problems solved by technology

Both desulfurization and denitrification can use ammonia water as a removal agent. Using ammonia water alone for desulfurization or denitrification will cause ammonia escape. Desulfurization and denitrification ammonia escape will increase ammonia consumption and cause unnecessary economic losses; desulfurization ammonia escape is easy The generation of aerosols will cause the dust at the flue gas outlet to exceed the standard; the escape of denitrification ammonia will easily corrode the tail air preheater, and the damage to the boiler will be more serious

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