Flue gas flow equalizing partitioning device of wet-process desulphurization absorption tower

Abstract

The invention relates to a horizontal wet desulfurization absorption tower flue gas uniform flow partition device, which includes a flow uniform plate, a liquid collection tank, an oxidizer, a liquid collection pipe, a communication pipe and a return pipe; the flow uniform plate is arranged in the absorption tower Between the inlet and the spray layer of the absorption tower on the upper part, the uniform flow plate is at a certain angle to the horizontal plane; the liquid collection tank is at the bottom of the flow uniform plate, and one end of the liquid collection pipe is connected to the bottom of the liquid collection tank, and the other end is connected to the upper part of the oxidizer; One end of the pipe is connected to the top of the oxidizer, and the other end is connected to the upper part of the equalizer; one end of the return pipe is connected to the bottom of the oxidizer, and the other end is connected to the upper part of the absorption tower circulating slurry pool; the oxidation air pipe is inserted from the top of the oxidizer to below the slurry level in the oxidizer, Connect to an oxidizing air distribution line with several small branches. The beneficial effect of the invention is that it can not only improve the distribution of flue gas flow field in the absorption tower, but also control the slurry in the absorption tower according to the pH value, effectively improve the oxidation efficiency and absorption efficiency, and improve the performance of the whole desulfurization system.

Description

technical field [0001] The patent of the present invention relates to a flue gas uniform flow partition device, in particular to a flue gas uniform flow partition device for a wet desulfurization absorption tower. Background technique [0002] At present, most of the wet desulfurization absorption towers adopt the empty tower spray structure. After research and analysis of the flue gas flow field in the tower, it is found that the distribution of the flue gas flow field between the absorption tower entrance and the first spray layer is very uniform. Difference. In any cross-section between the top of the absorption tower inlet flue and the upper first spray layer, the flue gas velocity away from the flue gas absorption tower entrance is relatively high, while the flue gas velocity close to the absorption tower entrance is relatively low. The poor uniformity of the flue gas flow field seriously affects the contact and mass transfer effect between the flue gas and the spray l...

AI Technical Summary

Problems solved by technology

The poor uniformity of the flue gas flow field seriously affects the contact and mass transfer effect between the flue gas and the spray liquid, resulting in low desulfurization efficiency of the absorption tower

In order to improve the desulfurization efficiency, it is necessary to increase the slurry circulation to increase the liquid-gas ratio, which greatly increases the energy consumption of the desulfurization system

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