| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for adjusting an amount of Mn in converter blowing, which accurately equalizes the amount of Mn in a molten steel in the end of blowing treatment in a converter, to the target amount of Mn, and reduces the cost. SOLUTION: This adjusting method comprises: defining blowing conditions containing a plurality of items among the blowing conditions for a charge to be newly performed, as a new blowing vector; picking up the same blowing conditions as a plurality of the above items from a blowing result database which stores blowing conditions for each charge actually performed in the past, and defining them as each performed blowing vector; selecting a predetermined number of blowing vectors similar to the new blowing vectors among the performed blowing vectors; preparing a model for estimating the amount of Mn existing in the molten steel when the blowing in a converter will be finished in the charge to be newly performed, by using the predetermined number of the selected blowing vectors; and determining the amount of Mn ore to be charged for the charge to be newly performed by using the prepared model. COPYRIGHT: (C)2005,JPO&NCIPI
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