Currently,the production requirements for energy conservation and emission reduction in China's steel in-dustry are becoming increasingly strict.Collaborative treatment of pollution and carbon reduction has become a new direction for industry development,especially in the sintering process,which has problems such as high solid fuel consumption and large emissions of various pollutants.The flue gas recirculating sintering process has the advanta-ges of reducing solid fuel consumption and reducing pollutant emissions.Therefore,the generation mechanism of va-rious pollutants in sintering flue gas,the removal mechanism after flue gas recirculation sintering,and the impact of changes in each component of the recirculating flue gas on sintering production are summarized,so as to explain the technical principle of flue gas recirculation sintering process and provide theoretical support for the reasonable appli-cation of flue gas recirculation sintering process.At the same time,a systematic summary is also conducted on the application effects and existing problems of typical processes at home and abroad.Based on the principle of flue gas recirculation sintering process and the emission law of main components in sintering flue gas,it is concluded that the refined selective flue gas recirculation process can achieve efficient energy conservation and emission reduction.Fi-nally,based on current situation of further increasing demand for pollution reduction and carbon reduction,a feasible plan for the future progress of flue gas recirculation sintering process is proposed,providing reference for the wide-spread application and optimization improvement of this process in sintering production.
iron oresinteringpollution and carbon reductionflue gas recirculationdevelopment status
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