High-efficiency dry-method desulphurization, denitration and flue gas purification device

Abstract

The invention discloses a High-efficiency dry-method desulphurization, denitration and flue gas purification device, which is composed of an upper adsorption reaction chamber 3, a lower adsorption reaction chamber 13, a flue gas upper collection chamber 7, a flue gas lower collection chamber 11 and a flue gas channel 1. By utilizing a principle that adsorbent active coke is capable of adsorbing and desorbing pollutants SO2 and NOx in flue gases, the active coke is used for dynamically adsorbing SO2 in the flue gas lower collection chamber, and dynamically adsorbing NOx in the flue gas upper collection chamber. For raising a denitration effect, a reaction device of denitration agent ammonia gas with flue gases with NOx is added, to obtain good desulphurization and denitration effects, wherein the desulphurization effect reaches more than 95%, and the denitration effect reaches more than 80%, thereby raising flue gas purifying quality. In the invention, the adsorbent active coke is regenerated by a heating regeneration technology, adsorptivity of regenerated active coke is recovered, and the adsorbent active coke can be repeatedly regenerated and recycled without secondary pollution.

Description

[0001] [0002] technical field [0003] The invention relates to a flue gas purification device, in particular to a flue gas purification device capable of simultaneously realizing high-efficiency dry desulfurization and denitrification. Background technique [0004] With the development of economy and the progress of social civilization, more requirements are put forward for environmental protection, and the issue of environmental protection is a major issue related to the national economy and people's livelihood. The existing desulfurization and denitrification technologies are divided into two categories: wet method and dry method. Although the wet method is relatively mature, there are many problems. (1) The water consumption is large, which wastes a lot of water resources; Treatment process pollutants such as sulfur and nitrate in the air into the treatment liquid. The polluted liquid does not undergo secondary treatment. If it is directly discharged, it will cause sec...

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Problems solved by technology

The existing desulfurization and denitrification technologies are divided into two categories: wet method and dry method. Although the wet method is relatively mature, there are many problems. (1) The water consumption is large, which wastes a lot of water resources; Treatment process pollutants such as sulfur and nitrate in the air into the treatment liquid. The polluted liquid does not undergo secondary treatment. If it is directly discharged, it will cause secondary pollution; (3) The treated sulfuric acid cannot be recycled, resulting in industrial sulfuric acid resources. waste of

Although dry desulfurization and denitrification has solved many shortcomings of wet desulfurization and denitrification, it is still in the exploratory stage in my country. Some manufacturers have integrated dry desulfurization and denitrification at the same time. There is still a certain gap in solving the desulfurization and denitrification problems comprehensively and simultaneously

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