This paper discusses the optimization technology of the injection system for blast furnace in the domestic metallurgical industry,explains the working principle,process flow,con-trol equipment,instrument,monitoring parameters and protection measures of the blast furnace in-jection system,states the problems of the coal injection system,points out the problems of the injec-tion control system,carries out the optimization design of the control system,and describes the rea-sons for the fluctuation of the pulverized coal in the injection process.In combination with the actual problems of the injection system of a steel plant,an optimization and transformation scheme is pro-posed,which can effectively improve the powder loading efficiency of the injection tank,reduce the error of the pulverized coal injection rate,and improve the accuracy of pulverized coal injection.
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