Function guidance product partition ammonia process desulfurization oxidation circulation tank device and method

Abstract

The invention belongs to the technical field of ammonia process smoke gas desulfurization, and particularly relates to a function guidance product partition ammonia process desulfurization oxidation circulation tank device and method. The device comprises a desulfurization tower absorption section and an oxidation circulation tank, wherein the desulfurization tower absorption section and the oxidation circulation tank are connected through a pipeline; the oxidation circulation tank is separated into three regions including a single phase liquid region, an oxidation region and a reduction region by tank wall plates and separation plates; one side of the reduction region is communicated with the oxidation region; the other side of the reduction region is communicated with a desulfurization circulation pump through a pipeline; the oxidation region is communicated with the single phase liquid region; the single phase liquid region is communicated with an ammonium sulfate material transferpump through a pipeline; an oxidation aeration layer is arranged inside the oxidation region, and is communicated with an oxidation fan through a pipeline. The absorbing capacity of absorption slurryon SO2 is greatly improved; the smoke gas desulfurization effect is enhanced; the field operation environment is greatly improved; the continuous and stable discharging of ammonium sulfate by-productsis ensured.

Description

technical field [0001] The invention belongs to the technical field of ammonia-based flue gas desulfurization, and in particular relates to an ammonia-based desulfurization oxidation circulation tank device and method for function-oriented product partitioning. Background technique [0002] In recent years, the air pollution caused by flue gas emissions from coal-fired industrial boilers has attracted more and more attention from the public. SO 2 It is one of the most important pollutants in coal combustion flue gas. At present, the mainstream desulfurization methods include dry method, semi-dry method and wet method. Among them, wet ammonia desulfurization has the advantages of good desulfurization effect, no "three wastes" generation, and resource recovery of desulfurization by-products. It is widely used in chemical industry, coal chemical industry and other industries. The coal-fired industrial boiler has a wide range of applications. [0003] In the conventional ammo...

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Problems solved by technology

[0006] In order to solve the problems in the prior art that the effect of flue gas desulfurization is not good and the ammonium sulfate by-product cannot be continuously and stably discharged, the present invention proposes a function-oriented product partitioned ammonia desulfurization oxidation circulation tank device, including:

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