Wave plate spiral groove dedusting and demisting device

Abstract

The invention discloses a wave plate spiral groove dedusting and demisting device. The device comprises an outer barrel body, a screen barrel body and a central column body which are sequentially arranged at intervals in a sleeving mode from outside to inside. The lower peripheral wall of the screen cylinder is a non-porous section, and the upper peripheral wall of the screen cylinder is a screen hole section; a plurality of stages of strip-shaped wave spiral plates are arranged in the sieve pore section at intervals from top to bottom; the strip-shaped wave spiral plate is spirally wound on the central cylinder, and a spiral channel is formed in the screen cylinder; a flue gas dead zone is formed by a space between the screen cylinder body and the outer cylinder body; and the outer edge of the strip-shaped wave spiral plate is jointed with the inner surface of the outer cylinder body. The screen cylinder can thoroughly separate a smoke flowing area from a liquid film adsorption area, and the problem of secondary carrying is solved. Due to the water seal effect of the water collecting tank in the lower portion of the liquid film adsorption area, the smoke cannot flow between the screen barrel and the outer barrel, and the problem of secondary carrying of the smoke is fundamentally solved.

Description

technical field [0001] The invention relates to flue gas purification treatment, in particular to a wave plate spiral groove dust and mist removal device. Background technique [0002] In recent years, with the rapid development of industry, air pollution has become increasingly serious, among which SO 2 And fine particulate matter is the main air pollutant produced by fossil fuel combustion. [0003] In order to implement strict environmental protection emission policies, various industrial enterprises have widely used flue gas desulfurization devices. According to statistics, 90% of thermal power units use limestone-gypsum wet desulfurization. Limestone-gypsum wet desulfurization has also been adopted in metallurgy, petrochemical, building materials and ship power. [0004] The flue gas after desulfurization will contain a large number of dust particles and slurry droplets with different particle sizes. If it is directly discharged into the atmosphere, it will form a ph...

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Problems solved by technology

[0008] The invention prevents the secondary carrying of the smoke through the continuous channel (or wave plate) on the surface of the strip-shaped wave spiral plate, and combines the screen cylinder to separate the flow area of ​​the smoke from the liquid film of the outer cylinder wall, completely preventing high-speed smoke The secondary carryover formed by tearing the liquid film through the liquid film fundamentally solves the problem of serious secondary carryover and low dust removal efficiency in actual engineering applications; the accumulated water is collected through the sump, and the water is automatically drained, completely solving the water balance problem

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