浴内反応および混合攪拌状態を考慮した数学モデルによる脱炭反応の検討

概要

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A mathematical model taking the flow and reactions in bath into consideration has been developed in order to investigate the decarburization process quantitatively. This model is able to simulate well the variation of process variables. The knowledges obtained from process analysis in this study are as follows : (i) the low value of oxygen efficiency for decarburization is due to the low value of absorption efficiency of oxygen, namely 50-60%, which is further caused by the relatively large resistance of mass transfer in gas phase ; (ii) the fire spot occupies the area corresponding to the width of gas jet ; (iii) the variation of exhaust gas composition is primarily determined by the division of unabsorbed oxygen between the combustion of CO gas and the oxidation of scattered droplets of liquid iron. Finally, the self-acceleration of decarburization in commercial converters has been pointed out.
社団法人日本鉄鋼協会の論文
1977-02-01