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A Mathematical Model for the Reduction Stage of the AOD Process. Part I: Derivation of the Model

机译：AOD过程还原阶段的数学模型。第一部分：模型的推导

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摘要

A process model was proposed by J?rvinen and co-authors for modelling the side-blowing decarburisation stage of the Argon-Oxygen Decarburisation (AOD) process. Here, a new model for the reduction stage has been derived and coupled with the earlier-developed model. The model considers mass-transfer controlled reversible reactions between the steel bath and the top slag. The effect of emulsification phenomena on the total reaction area and on the mass and heat transfer characteristics have been taken into account. The effects of various additions on the mass and heat balance have also been considered. The paper is divided into two parts: Part I presents the derivation of the model, while Part II considers validation of the model with full-scale production data from a 150 t AOD converter at Outokumpu Stainless Oy, Tornio Works, Finland.
机译：J？rvinen及其合作者提出了一种工艺模型，用于对氩氧脱碳（AOD）工艺的吹气脱碳阶段进行建模。在这里，已经得出了用于还原阶段的新模型，并与先前开发的模型相结合。该模型考虑了钢浴和炉渣之间传质控制的可逆反应。已经考虑了乳化现象对总反应面积以及质量和传热特性的影响。还考虑了各种添加对质量和热量平衡的影响。本文分为两个部分：第一部分介绍了模型的推导，第二部分考虑了使用来自芬兰Tornio Works的Outokumpu Stainless Oy的150 t AOD转炉的满量程生产数据进行模型验证。

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