Pneumatic packed rotating tower realizing self-distribution parallel flow

Abstract

The invention provides a pneumatic packed rotating tower realizing self-distribution parallel flow. The pneumatic packing rotating tower comprises a desulphurization and dust removal absorption tower body, a rotary demister arranged at the internal upper part of the tower, a self-distribution parallel flow separating plate arranged in the tower, a liquid distributing device arranged on an upper separating plate, annular pneumatic rotational flow devices arranged in holes in the upper separating plate and a lower separating plate, annular packing supporting plates arranged in holes located in the upper separating plate and the lower separating plate, packing press plates and packing, wherein concentric inner and outer cylinders arranged in the holes in the upper separating plate and the lower separating plate are welded with the upper separating plate and the lower separating plate, each inner cylinder adopts a hollow structure with sealed end and is equipped with a gas flow adjusting plate located on the upper separating plate and on the periphery of an outer cylinder of the corresponding hole. By means of the pneumatic packing rotating tower, self-distribution parallel flow of gas in the tower can be realized, the amplification effect of a packed tower is solved, and scaling and blockage in a packing region are avoided due to the internal circulation flow of the packing. The invention aims to provide a packing absorption device with simple structure, high mass transfer efficiency, low investment, low operation and maintenance cost and wide flue gas load application range.

Description

technical field [0001] The invention relates to equipment for absorbing and purifying harmful gases, in particular to a self-distributing parallel-flow pneumatic packing rotary tower, which is suitable for purifying sulfur dioxide and dust in exhaust gas discharged from coal-fired boilers, metallurgy, chemical industry and other fields. Background technique [0002] At present, it has become a consensus to protect the environment, maintain sustainable development, and build a conservation-oriented society. The control of air pollution and the blue sky and white clouds are one of the priorities of my country's pollution control. Among them, the control of sulfur dioxide and dust in the flue gas of coal-fired boilers is particularly urgent and important. [0003] In my country, according to incomplete statistics from the 1990s to 2005, nearly 40 environmental protection companies across the country have successively introduced the flue gas desulfurization technology of therma...

AI Technical Summary

Problems solved by technology

However, due to the low efficiency of the single plate of the swirl plate tower method, it is necessary to set up multi-layer trays, resulting in an increase in the pressure drop in the tower

At the same time, a certain flue gas flow rate and serious amplification effect make it unable to exert ideal effects in occasions with large load changes and large flue gas treatment volumes.

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