High-efficiency multistage demister

Abstract

The invention discloses a high-efficiency multistage demister. The high-efficiency multistage demister comprises a plurality of demisting components; each demisting component comprises a gas riser pipe and an outer barrel; the outer barrel is arranged on the outer side of the gas riser pipe and located on the same axis as the gas riser pipe; the inner surface of the outer barrel is provided with spiral fins; the gas riser pipe is fixed on a tray; the top of the gas riser pipe is provided with a sealing cover; and a rectifying passage is arranged on the circumference of the gas riser pipe. Thedemister of the invention realizes the separation of droplets from gas by rectification, acceleration and scraping effect in the flowing process of fluids. The demister of the invention has the advantages of simple structure, convenient installation and small possibility of scale formation, and can effectively realize gas-liquid separation and reduce entrainment of mist.

Description

Technical field [0001] The invention relates to a gas-liquid separation device, in particular to a high-efficiency multi-stage mist eliminator. Background technique [0002] A large amount of SO is generated in the production process of electric power, metallurgy, petrochemical and other industries 2 Hazardous substances such as dust and dust have caused serious acid rain hazards and haze weather, and are currently the air pollutants that my country is currently focusing on controlling. At present, in the field of environmental protection, a wet desulfurization process is generally used to remove harmful substances such as sulfur dioxide in the flue gas, that is, spray lye on the flue gas to absorb or adsorb these harmful substances. However, in the wet desulfurization process, the flue gas after desulfurization in the absorption tower contains a large number of small droplets with a particle size of about 10-60 microns. These droplets contain sulfuric acid, sulfate, and SO. 2 It...

AI Technical Summary

Problems solved by technology

During the separation process of the liquid phase and the gas phase of this technology, gas-liquid cross flow can be realized, so the secondary entrainment effect of the gas relative to the liquid droplet is greatly reduced, but the technical structure is very complicated, the processing difficulty is relatively large, and the corresponding processing and production costs are relatively high.

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