Novel barrier type air-actuated three-phase fluidization synthetized absorbing tower

Abstract

The grating type pneumatic triphase fluidizing comprehensive absorption tower includes one housing, one gas inlet channel and gas outlet channel in the top of the tower, one rotary defogging and dewatering unit, one stuffing assembly comprising support boards, hold-down boards and stuffing, one coaxial tubular grating member, one liquid distributor with ring sprinkler pipe, one large caliber reverse sprayer inside the gas inlet channel, and one absorbing slurry pond in the bottom of the tower. It features the special grating structure, the regularly arranged stuffing for cyclic fluidizing, the combined foam absorption and stuffing absorption, etc, and has high absorption efficiency, great gas treating amount and other advantages.

Description

technical field [0001] The invention belongs to the innovation of gas absorption and purification equipment, and in particular relates to a novel grid-type pneumatic three-phase fluidization comprehensive absorption tower. It is suitable for the purification of waste gas in large-scale coal-fired boilers, metallurgy, chemical industry and other fields. Background technique [0002] At present, in the chemical industry and environmental treatment industry, there are gas-liquid mass transfer equipment for gas separation and absorption purification in various forms and absorption mechanisms. For example, spray absorption tower, packed tower, liquid column absorption tower, plate tower, fluidized bed and Venturi scrubber, water film scrubber, etc., they play their respective advantages in modern chemical industry and air pollution control. [0003] In my country, the control of air pollution, especially the control of sulfur dioxide and dust in the boiler exhaust gas of coal-fi...

AI Technical Summary

Problems solved by technology

However, with the increase of the absorption tower diameter, channel flow, wall flow, short circuit, dead zone, etc. are still unavoidable, resulting in uneven gas-liquid distribution, and a significant deviation between the local liquid-gas ratio and the overall liquid-gas ratio. The gas-liquid mass transfer efficiency is significantly reduced, the so-called "magnification effect"

At the same time, the height of the packing layer is very high, generally ranging from a few meters to more than ten meters. It needs to be divided into multiple layers, and a liquid collection and redistribution device needs to be added between each packing layer, resulting in a complicated structure and inconvenient installation and maintenance.

In addition, in order to ensure the efficiency of absorption and separation, too high a packing layer also leads to the difficulty of equipment manufacturing, the increase of cost and the increase of system resistance, which leads to the increase of investment and operation costs

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