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首页> 外文期刊>ISIJ international >Comprehensive Model of Oxygen Steelmaking Part 3: Decarburization in Impact Zone
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Comprehensive Model of Oxygen Steelmaking Part 3: Decarburization in Impact Zone

机译：氧气炼钢综合模型第3部分：冲击区脱碳

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摘要

The development of a global model for oxygen steelmaking and its validation against industrial data has been reported in Part 1 of this paper. Part 2 of this paper explained the model development of decarburization reaction of emulsified droplets and discussed the effects of bloating behaviour of metal droplets on the overall kinetics of the process. Part 3 of this paper focussed on the development of one sub-model on the decarburization reaction in the impact zone and critically evaluates the important process variables affecting the decarburization kinetics. Decarburization rates in the impact zone were calculated using the semi-empirical relationships developed from experimental results. Based on previous experimental studies, both diffusion through the gas phase and surface control were considered in the rate calculations. The model was validated against experimental data from Belton and Sain, and against plant data from Cicutti ef al. The model developed was consistent with the experimental and plant data, and provided a reasonable basis for predicting the decarburization of iron in the impact region of oxygen steelmaking. The model predicted that the decarburization rate is sensitive to the partial pressure of carbon dioxide and oxygen in the impact zone. As the partial pressure of oxygen decreased from 26.4 to 16.2 kPa, the model predicted that that the reaction rate of decarburization via oxygen decreased from 202 to 134 kg/min. The model predicted that approx. 40% of decarburization takes place in the impact zone during the main blow.
机译：本文第1部分已经报道了氧气炼钢全球模型的开发及其针对工业数据的验证。本文的第2部分介绍了乳化液滴的脱碳反应的模型开发，并讨论了金属液滴的膨胀行为对整个过程动力学的影响。本文的第3部分着重于开发一个关于冲击区脱碳反应的子模型，并严格评估影响脱碳动力学的重要过程变量。使用从实验结果得出的半经验关系来计算冲击区的脱碳率。基于先前的实验研究，在速率计算中考虑了通过气相扩散和表面控制的问题。根据Belton和Sain的实验数据以及Cicutti等人的工厂数据对模型进行了验证。建立的模型与实验和工厂数据一致，为预测炼钢冲击区铁的脱碳提供了合理的基础。该模型预测脱碳速率对冲击区中二氧化碳和氧气的分压敏感。随着氧气分压从26.4 kPa降低到16.2 kPa，该模型预测通过氧气脱碳的反应速率从202 kg / min降低到134 kg / min。该模型预测大约在主吹气过程中，冲击区发生40％的脱碳。

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  • 来源
    《ISIJ international》 |2011年第7期|p.1102-1109|共8页
  • 作者

    Neslihan DOGAN; Geoffrey Alan BROOKS; Muhammad Akbar RHAMDHANI;

  • 作者单位

    Faculty of Engineering and Industrial Science, Swinburne University of Technology, Hawthorn, VIC 3122 Australia;

    Faculty of Engineering and Industrial Science, Swinburne University of Technology, Hawthorn, VIC 3122 Australia;

    Faculty of Engineering and Industrial Science, Swinburne University of Technology, Hawthorn, VIC 3122 Australia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    impact area; gas diffusion; sulphur; decarburization rate; oxygen steelmaking;

    机译：影响区域;气体扩散硫;脱碳率氧气炼钢;

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