Wet desulfurization flue gas ultra-clean emission treatment system

Abstract

The invention provides a wet desulfurization flue gas ultra-clean emission treatment system. The treatment system comprises: supercharging atomizing equipment, which is used for humidifying desulfurization flue gas to obtain humidified flue gas; purification equipment, which is connected to the supercharging atomizing equipment, and is used for purification of the humidified flue gas to realize gas-liquid-solid separation, thus obtaining clean flue gas and flue dust containing liquid water; and circulating water filtration equipment, which is connected to the purification equipment to filter flue dust containing liquid water so as to obtain filtered liquid water, which can be recycled by the supercharging atomizing equipment. While realizing flue gas purification, the wet desulfurization flue gas ultra-clean emission treatment system provided by the invention recycles moisture in the flue gas, has powerful water saving function, basically can achieve zero water replenishment, and saves cost.

Description

technical field [0001] The invention relates to the field of flue gas treatment, in particular to an ultra-clean discharge treatment system for wet flue gas desulfurization, and is especially suitable for the field of wet flue gas desulfurization. Background technique [0002] As the country attaches great importance to environmental protection, the public pays more attention to environmental protection, and the emission standards for flue gas treatment are also raised time and time again. From July 1, 2014, the new emission standards for air pollutants in thermal power plants began to be implemented, and the ultra-clean The concept of emission; From January 1, 2015, the latest flue gas emission standards for metallurgical and other industries have been officially implemented. [0003] At present, most enterprises are equipped with environmental protection facilities such as wet desulfurization, but the following problems generally exist: [0004] 1. The flue gas is saturat...

AI Technical Summary

Problems solved by technology

[0004] 1. The flue gas is saturated wet flue gas, which brings out a large amount of water vapor, resulting in a waste of water resources;

[0005] 2. The fine particles cannot be removed, resulting in dust emissions that cannot meet the ultra-low emission requirements;

[0006] 3. Flue gas contains SO 2 , SO 3 , when the dust exceeds the standard, especially the fine dust exceeds the standard, aerosols are formed, causing the smoke plume to be delayed for too long, resulting in "landscape pollution"

[0009] The above existing solutions have problems such as high investment cost, high operating cost, long transformation period, and difficult transformation. Therefore, it is imminent to develop a new technology for ultra-clean treatment of flue gas at the end.

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