Wet desulfurization and denitrification device and process for high-sulfur-concentration flue gas

Abstract

The invention discloses a wet desulfurization and denitrification device and process for high-sulfur-concentration flue gas. A wet desulfurization and denitrification device belongs to the technical field of wet desulfurization and denitrification and comprises a treatment tower, wherein a water tank is arranged on one side of the treatment tower and connected to a water outlet of the treatment tower through a water inlet component, a water pump is mounted on the water tank, a spraying component is mounted at a water outlet of the water pump and mounted on the treatment tower, and a flue gas treatment mechanism is further arranged on the inner side of the treatment tower. The invention discloses a wet desulfurization and denitrification device and process for high-sulfur-concentration fluegas. The desulfurization and denitrification effects of the high-sulfur-concentration flue gas are good, wherein water circulation is formed by the water tank, the water pump, the water inlet assembly and the spraying assembly, so that water resource is fully utilized and saved. In addition, the flue gas treatment mechanism can be fixed in the treatment tower through the limiting mechanism, so that after desulfurization and denitrification, the outer frame body can be pulled out of the treatment tower through the limiting plate, and thereby a desulfurization and denitrification agent and a denitrification catalyst are convenient to replace. The device is convenient to use and replace.

Description

technical field [0001] The invention relates to the technical field of wet desulfurization and denitrification, in particular to a wet desulfurization and denitrification device and process for flue gas with high sulfur concentration. Background technique [0002] Due to less and less high-quality resources such as coal and ore, more and more high-sulfur coal and high-sulfur ore resources are used in sintering and thermal power production, resulting in a gradual increase in the sulfur content in flue gas. Aiming at the desulfurization of iron and steel sintering machines, various sintering flue gas desulfurization technologies have been developed successively. [0003] Flue gas desulfurization and denitrification technology is a boiler flue gas purification technology applied in the chemical industry that produces many nitrogen oxides and sulfur oxides. Nitrogen oxides and sulfur oxides are one of the main sources of air pollution. Therefore, the application of this techno...

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Problems solved by technology

[0004] When the wet desulfurization and denitrification device of the current technology is dealing with flue gas with high sulfur concentration, it often sprays and absorbs the flue gas through the spraying mechanism. Most of the water after spraying is directly discharged, which causes a waste of water resources to a certain extent. At the same time, the desulfurization and denitrification agent and denitrification catalyst installed in the processing tower are inconvenient to be taken out for replacement during use, resulting in inconvenient use

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