Desulfurization and denitrification active coke asynchronous circulation flue gas purification device and method

Abstract

The invention belongs to the technical field of industrial waste gas treatment and in particular provides a desulfurization and denitrification active coke asynchronous circulation flue gas purification device and method. Active coke is fed into a desulfurization unit and a denitrification unit through conveyer belts respectively, the active coke after desulfurization and denitrification is directly fed into a regeneration device, and thus the active coke can be circulated and recycled. The active coke in the desulfurization and denitrification process is circulated relatively independently, so that desulfurization and denitrification active coke circulation velocities are different, the circulation velocity of active coke of a denitrification device can be reduced according to situations,namely, the circulation amounts of active coke fed into the denitrification unit and the desulfurization unit can be respectively and independently adjusted according to practical demands, and thus the abrasion loss of the active coke can be reduced; in addition, the desulfurization unit comprises a plurality of desulfurization cabins, the denitrification unit comprises a plurality of denitrification cabins, the plurality of cabins in different units can be connected in parallel or connected in series, and thus flue gases can be reacted more sufficiently.

Description

technical field [0001] The invention belongs to the technical field of industrial waste gas treatment, and in particular relates to a desulfurization and denitrification active coke asynchronous circulation flue gas purification device and method. Background technique [0002] The amount of flue gas from sintering head and pellet roasting is large, and the initial temperature of flue gas is low. At present, the integrated technology of dry desulfurization and denitrification without heating up is mainly dominated by activated coke desulfurization and denitrification technology. In order to maintain the relative independence of the desulfurization and denitrification processes, there are two current arrangements: ①The desulfurization device and the denitrification device are arranged up and down, the active coke in the regeneration device is transported to the top of the denitrification device through a chain bucket machine, and the active coke flows through the denitrificatio...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem of low service life of activated coke in desulfurization and denitrification processes in the prior art

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