A method for producing mite from molten pig iron and scrap by using a basic oxygen converting container for blowing at the top and means for preheating the scrap, which comprises the operations of: (a) determining the weight, the temperature and the content in desired carbon from a steel load; (b) determining at least the content of iron and silicon of an amount of molten pig iron before loading; (c) determining the temperature of the molten pig iron and (d) carrying out at least one calculation of the load that includes determining the loading quantities of molten pig iron and scrap to be loaded into the container so as to produce the desired steel weight ; determining the weight of at least one slag-forming constituent to be added to the vessel based on at least the weight of the molten pig iron charge and its silicon content; and determining a representation of the preheating energy that is necessary to supply the scrap so that the preheating of this plus the amount of heat contained in the molten pig iron charge and the amount of heat generated in the process is substantially equal to the amount the heat of the finished steel plus the heat losses in the furnace and the amount of heat contained in the slag formed in the process. (Machine-translation by Google Translate, not legally binding)
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