Abstract
Inert gas stirring of the melt in the ladle is a proven engineering process measure in secondary steelmaking. It is employed to ensure the specified homogeneity of the melt in terms of composition and temperature. The achievement of these objectives is essentially contingent on the flow conditions in the melt. The present paper deals with the results of numerical computations of the bubble movement and velocity field generated by such a gas stirring process. The distribution of alloy elements and the temperature field in the melt are computed on the basis of real temperature‐dependent fluid properties. The results of the numerical computations are compared with corresponding results of model trials and expressed in a form usable for operating plants. In addition, recommendations are made with regard to the scale‐up of model trial results to full‐size ladles under actual operating conditions.
Published Version
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