Flue gas treatment system

Abstract

The invention discloses a flue gas treatment system which comprises a reaction device and a pressurizing device; the reaction device is arranged at the top end of the pressurizing device through a pipeline, the front end of the reaction device is communicated with a heat exchange device, one end of the pressurizing device is communicated with a washing tank, the top end of the washing tank is communicated with an ammonia water tank, and the bottom end of the washing tank is communicated with a compression device; one end of the compression device is communicated with a crystallizing tank; a structural carbon plate is arranged in the reaction device, the structural carbon plate is fixed in the reaction device through a mounting frame structure; heated liquid can be discharged through an inner cylinder for use for other purposes, and gas after heat exchange enters the reaction device for next operation, so that simpleness and convenience are achieved; the heat in the gas can be fully absorbed, energy waste is avoided, and oxidizing gas entering branch pipes reacts with sulfur-containing compounds in flue gas; and meanwhile, chemical adsorption is generated between the structural carbon plate and SO2, oxidation products of NO and HgO are adsorbed at the same time, and the purpose of removing pollutants is achieved.

Description

technical field [0001] The invention relates to the field of flue gas treatment systems, in particular to a flue gas treatment system. Background technique [0002] The combustion of fossil fuels produces a large amount of pollutants, including sulfur oxides, nitrogen oxides, etc., and their emissions have seriously exceeded the self-purification ability of the environment. The frequent smog weather in recent years is a warning to human beings. Therefore, it is necessary to control the pollutants produced by the combustion of fossil fuels. At present, the desulfurization technology for combustion equipment can be divided into three categories: dry method, semi-dry method and wet method. Among them, the dry and semi-dry methods have low investment and operation costs, but the desulfurization efficiency is not high. The flue gas generated by large-scale combustion equipment widely adopts efficient limestone / gypsum wet desulfurization technology (WFGD), which has high desulfur...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the incomplete treatment of the flue gas after dust removal in the prior art, the harmful elements in it still exist in the flue gas after treatment, which will affect the subsequent work; and due to the oxidation reaction in some washing tanks, if the smoke Insufficient oxidation of nitrogen oxides in the gas and insufficient absorption of oxidation products, the present invention provides a flue gas treatment system

Images