Optimization of Pulverized Coal Blending Structure of Jingtang Steel BF based on Coal Quality Characteristics
To optimize the pulverized coal blending structure of Jingtang Steel BFs and reduce the smelting costs,the coal quality characteristics of pulverized coal used for the furnaces is analyzed,followed by a calculation of the theoretical replace-ment ratio of a single type of coal which is made based on the theoretical formula of coal-coke replacement ratio,and a cal-culation of pulverized coal utilization rate.It is considered as the coal rate increases,the coal-coke replacement ratio decrea-ses gradually;After optimizing the coal blending structure and furnace operating parameters,the pulverized coal utilization rate of the three BFs in Jingtang improves,in which the rate of No.1,No.2 and No.3 BF reaches 97.64％,97.58％and 98.14％respectively,i.e.3％higher respectively than that in June 2022.
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