Flue gas low-temperature plasma co-processing method and system thereof

Abstract

The invention discloses a flue gas low-temperature plasma co-processing method and a system thereof. According to the flue gas low-temperature plasma co-processing method, flue gas exhausted by an incineration boiler is firstly subjected to denitration treatment, the flue gas subjected to the denitration treatment is pre-cooled to 40-50 DEG C, the pre-cooled flue gas is subjected to low-temperature plasma oxidation treatment, the flue gas subjected to the low-temperature plasma oxidation treatment returns to a cooling tower to be subjected to deep cooling treatment, and then the flue gas is sequentially subjected to desulfurization treatment, gas-solid separation treatment, activated carbon adsorption treatment and dust removal treatment and then discharged. The flue gas low-temperature plasma co-processing method has the advantages that the incineration flue gas can be deeply treated, the removal rate of pollutants in the flue gas is high, and the body health of incineration power plant workers is guaranteed.

Description

technical field [0001] The invention relates to the technical field of boiler incineration flue gas treatment, in particular to a low-temperature plasma cooperative treatment method and system for flue gas. Background technique [0002] In recent years, under the increasingly severe situation of "garbage siege", waste incineration power generation as the best way to "reduce, harmless, and resourceful" dispose of domestic waste has attracted great attention and attention from the country. The flue gas will contain pollutant gases of various components. The flue gas needs to be effectively filtered and purified to meet the emission standards before it can be released. At present, when the pollutants in the flue gas are treated, the flue gas needs to be cooled first, and then Washing is carried out by adding a treatment agent, that is, the dust in the flue gas is removed for pretreatment, and the pollutant gas in the flue gas is washed at the same time. The entire environmental...

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Problems solved by technology

[0002] In recent years, under the increasingly severe situation of "garbage siege", waste incineration power generation as the best way to "reduce, harmless, and resourceful" dispose of domestic waste has attracted great attention and attention from the country. The flue gas will contain pollutant gases of various components. The flue gas needs to be effectively filtered and purified to meet the emission standards before it can be released. At present, when the pollutants in the flue gas are treated, the flue gas needs to be cooled first, and then Washing is carried out by adding a treatment agent, that is, the dust in the flue gas is removed for pretreatment, and the pollutant gas in the flue gas is washed at the same time. The entire environmental protection system needs to go through multiple purification steps and use multiple equipment to achieve. The process of the flue gas is directly related to whether the main pollutants in the incineration flue gas can be deeply removed. The flue gas process in the current flue gas treatment system is generally short. Although the treated gas can also meet the emission standards, from It will not cause excessive pollution in a large-scale environment, but in a small-scale environment, such as the water and soil around the power plant and the health of power plant workers, it will still have a certain degree of impact in the long run

Therefore, the existing waste incineration flue gas treatment has the problems of insufficient purification depth, low removal rate of pollutants in the flue gas, and long-term harm to the health of incineration power plant workers.

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