High-dust flue gas desulfurization and washing tower

Abstract

The invention discloses a high-dust flue gas desulfurization and washing tower. The tower comprises a tower body, wherein the tower body is a carbon steel container, the top of the tower body is provided with a control switch set, the side surface of the tower body is respectively communicated with a gypsum slurry conveying pipe and an air inlet pipe and an induced draft fan is arranged on the airinlet pipe. By adopting the high-dust flue gas desulfurization and washing tower, the air inlet rate of the flue gas is increased through the induced draft fan, so that the working efficiency of thedesulfurization and washing tower is improved, and atomization and dust removal are carried out through a spraying device. The dust removal effect is good, the efficiency is high, and oxygen is supplied to the inner part of the tower body through an oxygen supply device, sulfur dioxide in the flue gas is subjected to oxidation reaction with calcium carbonate in the slurry and air blown from the lower part of the tower body to generate calcium sulfate, and after the calcium sulfate reaches a certain saturation degree, calcium sulfate crystallizes to form dihydrate gypsum, so that the desulfurization treatment is carried out, the desulfurization rate is high, and the use requirements can be met, a stirring device is used for stirring the slurry, so that the slurry is allowed to fully react,and the desulfurization efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of flue gas desulfurization washing equipment, in particular to a high-dust flue gas desulfurization washing tower. Background technique [0002] In the prior art: the patent with the authorized publication number of CN 207024958 U discloses a high-dust flue gas desulfurization washing tower. After the flue gas is cleaned, it flows out from the top of the tower. There are several sprayers in the absorption area. The spray liquid is the absorption liquid. There are several sprayers in the washing and purification area. The trays with liquid collecting elbows and some scrubbing caps arranged on the trays have the following disadvantages: 1. Low working efficiency; 2. Direct spraying and dust removal, poor dust removal effect; 3. Low desulfurization rate. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a high-dust ...

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Problems solved by technology

[0002] In the prior art: the patent with the authorized publication number of CN 207024958 U discloses a high-dust flue gas desulfurization washing tower. After the flue gas is cleaned, it flows out from the top of the tower. There are several sprayers in the absorption area. The spray liquid is the absorption liquid. There are several sprayers in the washing and purification area. The tray with liquid collecting elbow and several scrubbing caps arranged on the tray have the following disadvantages: 1. Low working efficiency; 2. Direct spraying and dust removal, poor dust removal effect; 3. Low desulfurization rate

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