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首页> 外文期刊>ISIJ international >A New Approach to Using Modelling for On-line Prediction of Sulphur and Hydrogen Removal during Ladle Refining
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A New Approach to Using Modelling for On-line Prediction of Sulphur and Hydrogen Removal during Ladle Refining

机译：钢包精炼过程硫脱氢在线预测模型的新方法

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摘要

A simplified model has been developed for on-line determination of sulphur and hydrogen contents in the steel during vacuum degassing in an ASEA-SKF ladle furnace at Ovako Steel in Hofors, Sweden. The simplified model was developed based on results from fundamental mathematical model simulations of hydrogen and sulphur refining for a number of cases representing normal production situations. More specifically, mass-transfer coefficients were determined from the simulations and thereafter used to develop separate simplified models for sulphur and hydrogen refining. Predictions from using the simplified process models agreed well with sulphur and hydrogen data from full-scale plant trials. It was therefore concluded that the main purpose of the study, namely to achieve a less time-consuming model suitable for production applications, was fulfilled. The final part of the paper presents how the simplified models can provide engineers or operators with off-line or on-line guidelines on performing the vacuum degassing operation such that quality requirements regarding sulphur and hydrogen contents in the steel product are met.
机译：在瑞典霍夫斯Ovako钢厂的ASEA-SKF钢包炉中，在真空脱气过程中，在线确定钢中硫和氢含量的模型已经开发出来。简化模型是根据氢和硫精炼的基本数学模型仿真结果得出的，这些结果代表了正常生产情况下的许多情况。更具体地，从模拟确定传质系数，然后将其用于开发用于硫和氢精制的单独的简化模型。使用简化工艺模型得出的预测与大规模工厂试验中的硫和氢数据非常吻合。因此可以得出结论，该研究的主要目的，即实现一种适用于生产应用的耗时较少的模型，已得到满足。本文的最后一部分介绍了简化的模型如何为工程师或操作员提供进行真空脱气操作的离线或在线指导，从而满足有关钢铁产品中硫和氢含量的质量要求。

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