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Primary steelmaking through BOF converters represents an important point in the steel production. Against a challenger and competitive Market, operational stability and innovations are necessary to reach quality and suitable prices. In order to study the combined blowing through cold physical model, in similarity with thyssenkruppCSA 330t converter, visual inspection and colorimetry methods were used to define the jet penetration and the best tuyeres configuration respectively, on the metal bath behavior. It was found a distance bath lance that decreases mix time with low slopping probability. After cold model results, parameters can be recalculated for industrial practice with good agreement.

CONFIGURAÇÕES DE VENTANEIRAS TBM E VAZÃO – COMPARAÇÃO ENTRE BOF THYSSENKRUPP CSA E MODELO A FRIO