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Fusion temperature prediction technique, molten warm temperature prediction device, the operating method of blast furnace, Operating Guideline device, molten warm temprature control method, and molten warm temperature control equipment
Fusion temperature prediction technique, molten warm temperature prediction device, the operating method of blast furnace, Operating Guideline device, molten warm temprature control method, and molten warm temperature control equipment
PROBLEM TO BE SOLVED: To provide a molten iron temperature prediction method and a molten iron temperature prediction device capable of predicting future variation of molten iron temperature without using latest in-furnace reaction results even under an operation condition having no precedent in the past.SOLUTION: A molten iron temperature prediction method includes a step for adjusting parameters relating gas reduction rate or blast body heat loss amount in a physical model so that sensitivity of values calculated by a physical model each other and sensitivity of actual value of actual operation data each other in at least one of a relationship between reduction material ratio and solution loss carbon amount, a relationship between reduction material and gas usage rate and a relationship between the reduction material rate and blast body heat loss amount, and predicting molten iron temperature in a blast furnace by using the physical model with adjusted parameters.SELECTED DRAWING: Figure 7
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