Activated coke flue desulfurization and denitrification integrated treating system

Abstract

The invention discloses an activated coke flue desulfurization and denitrification integrated treating system. The system mainly includes a desulfurization and denitrification integrated reactor, an ammonium hydroxide storage tank, an ammonia spraying and mixing tower, an ammonium hydroxide pump, a waste coke cabin and an induced draft fan. Original flue from a boiler enters a desulfurization module of the reactor through a desulfurization inlet of the desulfurization and denitrification integrated reactor, the flue is in contact with activated coke inside the reactor, SO2 in the flue is adsorbed by the activated coke inside the reactor to be removed, desulfurized flue enters the ammonia spraying and mixing tower to be fully mixed with ammonium hydroxide in the ammonium hydroxide storage tank and then enters a denitrification module of the reactor, NOx in the flue reacts with ammonia inside the reactor to be reduced into N2 through low-temperature catalysis of the activated coke, cleanflue obtained after desulfurization and denitrification is conveyed into a chimney through the induced draft fan to be discharged, and waste coke generated in the reactor is conveyed into the waste coke cabin. The activated coke flue desulfurization and denitrification integrated treating system has the advantages of being low in investment and running cost, simple in structure and reliable during running.

Description

technical field [0001] The invention relates to the technical field of air pollutant treatment, in particular to an integrated treatment system for active coke desulfurization and denitrification. Background technique [0002] Coal occupies a dominant position in my country's primary energy. Most of the utilization of coal is realized through combustion, and the combustion of coal will produce a large number of pollutants, including: SO2, NOx, dust and heavy metals. In order to protect the ecological environment and build a sustainable economy, the national and local governments have introduced a series of stricter air pollutant emission standards and control measures, requiring most coal-fired units to achieve ultra-low emissions. [0003] At present, in the thermal power generation industry, the standard discharge of pollutants is generally achieved through measures such as low-nitrogen combustion + SCR / SNCR + high-efficiency dust collector + FGD. However, there are quite...

AI Technical Summary

Problems solved by technology

However, there are quite a few coal-fired boilers or kilns in other non-electric industries, which cannot meet the requirements of ultra-low emissions through traditional treatment methods

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