Waste gas leaching purification system and waste gas purification method

Abstract

The invention discloses a waste gas leaching purification system which comprises a waste gas purification shell of a revolving body structure, a sulfur-containing waste gas purification cavity is formed in the waste gas purification shell, and leaching absorption liquid is arranged at the bottom of the sulfur-containing waste gas purification cavity; according to the invention, a part of dispersedwater sprayed upwards from the upper end of a water spray dispersing channel in a spiral shape at a relatively low initial speed falls to the central part of an annular swirl desulfurization leachingcavity under the action of gravity; Spiral falling motion is carried out under the swirl entrainment in the annular swirl desulfurization leaching cavity; finally, sulfur-containing waste gas falls to the bottom of the sulfur-containing waste gas purification cavity, so that the whole annular swirl desulfurization leaching cavity is filled with diluent spray falling spirally, the rotational flowof the sulfur-containing waste gas in the annular swirl desulfurization leaching cavity is in full contact and fusion with the diluent spray falling spirally, and secondary absorption of the sulfur-containing waste gas is realized.

Description

technical field [0001] The invention belongs to the field of industrial waste gas desulfurization. Background technique [0002] The sulfur dioxide gas in the industrial waste gas needs to be absorbed by the absorption tower and then discharged to the outside. The existing absorption tower mainly uses the water pipe to pump the lime slurry to a high place and release it to form a continuous rain effect, so as to achieve the effect of full contact with the waste gas In this way, the raindrops fall faster and the time of staying in the air is limited, resulting in limited absorption efficiency of a single shower. Contents of the invention [0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a waste gas rinsing purification system with higher absorption efficiency. [0004] Technical solution: In order to achieve the above object, the waste gas rinsing and purification system of the present invention includ...

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Problems solved by technology

[0002] The sulfur dioxide gas in the industrial waste gas needs to be absorbed by the absorption tower and then discharged to the outside. The existing absorption tower mainly uses the water pipe to pump the lime slurry to a high place and release it to form a continuous rain effect, so as to achieve the effect of full contact with the waste gas , the raindrops fall faster in this way, and the time of staying in the air is limited, resulting in limited absorption efficiency of a single shower

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