Flue-gas wet dust removal desulfurizer

Abstract

The invention relates to a flue-gas wet dust removal desulfurizer which belongs to the technical field of flue-gas purification. The flue-gas wet dust removal desulfurizer comprises a circular device body, a purified gas outlet and a flue-gas inlet and is characterized in that a circular tube of the flue-gas inlet extends into the circular device body, a rain cap is arranged at the top of the circular device body, a cone bushing is arranged above the rain cap, and a circular spraying tube is arranged above the cone bushing. When water is sprayed onto the cone bushing from the circular spraying tube and flows onto the rain cap from the peripheral wall of the cone bushing, a secondary water-film waterfall on the internal wall surface of the cone bushing and the outer wall surface of the water cap is formed. In the gas wet dust removal desulfurizer, not only the flue gas can generate a plurality of collision choices with water in the device body, but also the flue gas rinsing effect and the desulphurization effect of the water-film waterfall are greatly improved, the abrasion and the blockage of a spray header are effectively solved, the ascending resistance of the flue gas is reduced simultaneously, and the manufacturing, installing and operating cost is greatly reduced. The invention has the advantages of reasonable design, simple structure, low cost and wide application and usage value.

Description

technical field [0001] The invention discloses a flue gas wet dust removal and desulfurization device, which belongs to the technical field of flue gas purification. It is an integrated equipment for dust and sulfur dioxide dedusting and desulfurization of boiler outlet flue gas. Background technique [0002] Flue gas dust removal and sulfur dioxide removal are two important aspects of controlling environmental pollution. The principle of wet dedusting and desulfurization in the prior art: Generally, after the boiler flue gas enters the dust collector, it is excited with the water when it passes through the spray water, and the water is atomized to wash the flue dust by physical methods. In addition, alkaline solution can be used for spraying water. When sulfur dioxide and a small amount of sulfur trioxide in the flue gas contact with the alkaline solution, they react chemically to form sulfate, which falls into the ash-falling tank at the bottom of the dust collector toget...

AI Technical Summary

Problems solved by technology

Adopt the prior art equipment that this general principle is made at present, there is following shortcoming: 1, general flue gas and spraying water have only one opportunity of contact phase excitation, cause cleaning soot insufficiently; 2, spraying water generally adopts special-purpose Sprinkler jets made of nozzles are not only expensive, but also prone to wear and clogging

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