An integrated device for coke oven flue gas desulfurization and denitrification and waste heat recovery and utilization

Abstract

The invention discloses an integrated device for coke oven flue gas desulfurization and denitrification and waste heat recovery and utilization. The third fan is connected with the evaporation chamber through a pipeline, and the water vapor is liquefied through a condensation plate, and enters the desulfurization layer and the denitrification layer in sequence. After the auxiliary desulfurization is completed in the layer, the water is heated and vaporized again, and then transported to the bottom of the evaporation chamber together with the desulfurized and denitrified gas through the third fan, and then the evaporation chamber is heated, so that the waste heat generated during the desulfurization and denitrification process is passed through The pipeline is connected to the evaporation chamber to accelerate the evaporation of the evaporation chamber, thereby effectively utilizing the waste heat generated in the desulfurization and denitrification process, effectively reducing the evaporation time of the evaporation chamber, and bringing the evaporated steam into the box again through the first fan to form Circulation effectively prevents impurities in the evaporation chamber from affecting the effect of desulfurization and denitrification in the box, thereby effectively improving the efficiency and quality of desulfurization and denitrification, and reducing energy waste and unnecessary consumption.

Description

technical field [0001] The invention relates to the structural field of desulfurization and denitrification devices, specifically an integrated device for coke oven flue gas desulfurization and denitrification and waste heat recovery and utilization, and belongs to the technical field of application of coke oven flue gas desulfurization and denitrification integrated devices. Background technique [0002] The flue gas desulfurization and denitrification integrated process is a system that can simultaneously remove SO 2 , NO 2 The technology of dust removal and dust removal can reduce the generation of exhaust gas and waste, and then effectively improve the environmental pollution of enterprises. Therefore, the integrated process of flue gas desulfurization and denitrification has attracted more and more attention from enterprises. [0003] The existing coke oven flue gas desulfurization and denitrification device requires multiple processes for the entire system, so its str...

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Problems solved by technology

[0004] The object of the present invention is to provide an integrated device for coke oven flue gas desulfurization and denitrification and waste heat recovery and utilization, so as to solve the problem of existing coke oven flue gas desulfurization and denitrification devices. A large amount of space is used, and a large amount of installation cost needs to be invested in the early installation; the existing coke oven flue gas desulfurization and denitrification device generally sends the coke oven flue gas into the dust removal device for desulfurization and denitrification treatment, during the desulfurization and denitrification process The waste heat generated will not be recycled, which is a waste of resources; the existing coke oven flue gas desulfurization and denitrification device collects the dust directly through the dust removal filter bag during dust removal, and the dust removal filter bag needs to be cleaned regularly, which is not conducive to desulfurization and denitrification. Long running technical issues

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