• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Ninth international conferece on molten slags, fluxes and salts >Coupled reaction kinetics of duplex steelmaking process for high phosphorus hot metal
【24h】

Coupled reaction kinetics of duplex steelmaking process for high phosphorus hot metal

机译：高磷铁水双相炼钢工艺的耦合反应动力学

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Duplex steelmaking process has been proven to be an effective solution for the utilization of high phosphorus iron ore, yet systematic analyses of the dephosphorization rate and mechanism of duplex melting for high phosphorus hot metal were seldom reported. In the present work, based on the kinetic model proposed by Robertson, a modified coupled reaction kinetic model was formulated firstly. Moreover, the dephosphorization process of duplex melting for high phosphorus hot metal was analyzed by the established model. A series of experiments were carried out to validate the accuracy of the established model and the calculated results showed a good agreement with the experimental data. Effects of components of both hot metal and slag on the interfacial oxygen activity during dephosphorization were discussed. It was found that a higher content of FeO in slag and lower concentration of C, Si and Mn in hot metal would contribute to a larger value of interfacial oxygen activity. The results indicate that the concentration of Si in the high phosphorus hot metal should be limited at an appropriate value due to the period of dephosphorization is relatively long and the oxidation of silicon is prior to that of phosphorus. Some parametric study was conducted to make a further discussion of the mechanism of duplex steelmaking process for high phosphorus hot metal.
机译：事实证明，双相炼钢工艺是利用高磷铁矿石的有效方法，但很少有系统地分析高磷铁水的脱磷速率和双相熔炼机理。在本文中，基于罗伯逊提出的动力学模型，首先建立了修正的耦合反应动力学模型。此外，通过建立的模型分析了高磷铁水的双重熔融脱磷工艺。进行了一系列实验，验证了所建立模型的准确性，计算结果与实验数据吻合良好。讨论了铁水和矿渣成分对脱磷过程中界面氧活性的影响。结果发现，渣中FeO含量较高，铁水中C，Si和Mn含量较低，将有助于较大的界面氧活度值。结果表明，由于脱磷的时间较长且硅的氧化先于磷，因此高磷铁水中的Si浓度应限制在适当的值。进行了一些参数研究，以进一步讨论高磷铁水的双相炼钢过程的机理。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号