A comprehensive flue gas treatment system

Abstract

The invention discloses a comprehensive smoke treatment system. The comprehensive smoke treatment system comprises a combustion catalytic oxidation device, a two-stage SCR catalytic oxidation device and a particle capturing device, wherein the combustion catalytic oxidation device comprises a combustion box; a gas outlet of the combustion box is connected with a smoke inlet of the two-stage SCR catalytic oxidation device; the particle capturing device comprises a dust remover and a venturi tube washer; an inlet of the dust remover is connected with a smoke outlet of the two-stage SCR catalytic oxidation device; a gas outlet of the dust remover is connected with an inlet of the venturi tube washer. With the adoption of the comprehensive smoke treatment system, the purchases of dust removal, desulfuration and denitration can be quickly and efficiently achieved; meanwhile, nitric oxide, sulphur and sulfur oxide, CO, HC, dust and other pollutants can be simultaneously removed, and the removal efficiency is high and the removal effect is good; the emitted gas meets the national and industrial standards; the secondary pollution, in particular secondary water pollution can be avoided; the comprehensive treatment system is high in economic and environmental benefits and is suitable for popularization and application.

Description

technical field [0001] The invention belongs to the technical field of flue gas treatment, and in particular relates to a comprehensive flue gas treatment system. Background technique [0002] In recent years, with the improvement of people's awareness of environmental protection, air quality has attracted more and more attention. At present, air pollutants mainly include sulfur oxides, nitrogen oxides and dust pollution. According to statistics, more than 90% of NOx in my country's air pollutants comes from the combustion process of fossil fuels (such as coal, oil, natural gas, etc.), of which 70% comes from the combustion of coal, and the coal used for power generation in thermal power plants accounts for the national fuel consumption. 70% of coal. After NOx enters the atmosphere, under the action of sunlight, it is easy to form chemical smog and damage the human respiratory system. NO is also one of the precursor gases to destroy the atmospheric ozone layer and form acid...

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Problems solved by technology

[0011] The purpose of the present invention is to provide a flue gas comprehensive treatment system to solve the problem that the desulfurization, dust removal and denitrification of the existing flue gas treatment system are carried out separately, and the equipment occupies a large area

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