| 摘要 |
PROBLEM TO BE SOLVED: To provide a near and improved charge weight determination method of carbon high reactivity charging material capable of determining preferable charge weight of the carbon high reactivity charging material, and a furnace operation method using it. ! SOLUTION: The invention in an aspect provides a charge weight determination method of carbon high reactivity charging material, comprises: a step for measuring a difference ΔTc between a gasification start temperature of coke, and a gasification start temperature of a carbon high reactivity charging material including a carbonaceous material whose reactivity is higher than that of the coke; a step for measuring a reduction characteristic value Rs of an iron-based raw material charged in a shaft furnace; a step for regulating a function F between the difference ΔTc, the reduction characteristic value Rs, a mixing ratio Xc of the carbon high reactivity charging material, and a reduction material ratio reducing amount in the shaft furnace |
