Rotational flow plate dust and mist eliminator capable of automatically forming film

Abstract

The invention discloses a rotational flow plate dust and mist eliminator capable of automatically forming film. The rotational flow plate dust and mist eliminator comprises an outer barrel, a screen barrel and a central supporting rod which are sequentially arranged at intervals in a sleeving manner 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 cavity between the outer barrel and the screen barrel forms a flue gas dead zone; a plurality of stages of upper rotational flow plates are arranged at the upper part in the sieve pore section at intervals; and a lower rotational flow plate is arranged in the outer cylinder body and below the sieve pore section. A smoke flowing area is separated from an outer barrel wall liquid film through the screen barrel, the problem of secondary carrying is fundamentally solved, fog drops flow back to the surface of the lower rotational flow plate through the liquid collecting tank, a stable liquid film is formed, and therefore the purpose of saving water is achieved without additionally arranging a water spraying device. Fogdrops separated from flue gas are gathered on the inner wall of the outer cylinder, can converge to the water collecting tank under the action of gravity and then flow back to the surface of the lower rotational flow plate, and a continuous and stable liquid film, namely a self-formed film, is formed on the blade surface of the lower rotational flow plate. The liquid film can adsorb dust particles in flue gas, and the dust removal efficiency is improved.

Description

technical field [0001] The invention relates to a flue gas treatment device and a chimney cyclone cyclone demisting and dust removal device, in particular to a self-filming cyclone plate dust and mist eliminator. 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 are the main air pollutants produced by the combustion of fossil fuels. [0003] In order to implement environmental protection policies, various industrial enterprises have widely adopted flue gas desulfurization devices. According to statistics, 90% of thermal power units use limestone-gypsum wet desulfurization. Metallurgy, petrochemical, building materials and ship power have also successively adopted limestone-gypsum wet desulfurization. The flue gas after desulfurization will contain a large number of dust particles and slurry droplets with different particle sizes. If it is direct...

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Problems solved by technology

[0008] The present invention completely solves the common problems of existing devices, such as high water consumption, low dust removal efficiency, and serious secondary carrying, from the principle and structure

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