Spiral gas distributor

Abstract

The invention discloses a gas distributor, relates to the field of a sulfur dioxide absorption tower and in particular relates to a gas distribution device inside an absorption tower. The gas distributor comprises a round support frame which is fixedly connected to the inner wall of the sulfur dioxide absorption tower, wherein a plurality of main shafts are fixedly connected inside the round support frame; the multiple main shafts are arranged in parallel and each main shaft is connected to a spiral blade; and the spiral blades provided with the main shafts are arranged in a mode of right-handed rotation in the direction parallel to a flue gas inlet direction and are distributed in a staggered manner by equal spacing. Since pore channels are distributed obliquely towards the flue gas inlet direction, locally concentrated gas is dispersed towards a dead area under the inclined guiding effect of the distributor, so that the gas inside the absorption tower is effectively rectified and the circumstance of local flue gas concentration or dead area is significantly relieved; in addition, the uniform distribution of the gas is further enhanced by virtue of the sufficient distributed pore channels, so that the desulfurization efficiency is improved to a great extent. Meanwhile, the spiral distributor can enhance flue gas disturbance degree, prolong a contact time between the flue gas and slurry and increase the utilization rate of the slurry.

Description

technical field [0001] The invention relates to the field of sulfur dioxide absorption towers, in particular to a gas distribution device in the absorption tower. Background technique [0002] With the rapid development of the economy, the emission of air pollutants is also increasing year by year, especially the emission of sulfur dioxide, so desulfurization is particularly important. At present, the flue gas desulfurization processes commonly used in industry mainly include wet method, dry method and semi-dry method. Among them, the wet flue gas desulfurization process is widely used because of its high desulfurization rate, mature process technology, long stable operation period, small impact of load changes, and large flue gas treatment capacity. The key to the wet flue gas desulfurization process is the desulfurization tower, and the commonly used desulfurization towers mainly include spray towers, bubble towers and liquid column towers. Among these types of desulfuri...

AI Technical Summary

Problems solved by technology

At present, some commonly used gas distributors have insufficient distribution points, some are easy to block distribution channels, and some have complex structures, so it is difficult to be popularized and applied.

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