METHOD FOR PREDICTING IMPURITY CONCENTRATION OF MOLTEN IRON, METHOD FOR MANUFACTURING MOLTEN IRON, METHOD FOR CREATING TRAINED MACHINE LEARNING MODEL, AND APPARATUS FOR PREDICTING IMPURITY CONCENTRATION OF MOLTEN IRON

There is provided a method for predicting the impurity concentration of molten iron, in which improved prediction accuracy of the concentration of an impurity, as a tramp element, in the molten iron can be obtained in the refining of the molten iron using an electric arc furnace.A method for predicting an impurity concentration of molten iron after refining of molten iron to be refined in an electric arc furnace facility includes inputting amounts of individual ferrous scrap materials charged, the ferrous scrap materials being classified by type, and at least one of the impurity concentration of molten iron in a preceding charge, the amount of residual molten iron in the preceding charge, and the market transaction price information of an impurity into an impurity concentration prediction model; and outputting the impurity concentration of molten iron in a subsequent charge.