东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2010, Vol. 31 ›› Issue (4): 523-526.DOI: -

• 论著 • 上一篇    下一篇

RH-KTB顶吹氧吸收及脱碳过程的水模型

耿佃桥;雷洪;刘爱华;赫冀成;   

  1. 东北大学材料电磁过程研究教育部重点实验室;东北大学材料与冶金学院;
  • 收稿日期:2013-06-20 修回日期:2013-06-20 出版日期:2010-04-15 发布日期:2013-06-20
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家高技术研究发展计划项目(2009AA03Z530);;

Water modeling on oxygen absorption and decarburization in RH-KTB process

Geng, Dian-Qiao (1); Lei, Hong (1); Liu, Ai-Hua (2); He, Ji-Cheng (1)   

  1. (1) Key Laboratory of Electromagnetic Processing of Materials, Northeastern University, Shenyang 110004, China; (2) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China
  • Received:2013-06-20 Revised:2013-06-20 Online:2010-04-15 Published:2013-06-20
  • Contact: Geng, D.-Q.
  • About author:-
  • Supported by:
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摘要： 为深入了解RH-KTB真空精炼过程的传质现象,建立了与原型1∶5.5的水模型,并利用NaOH-CO2溶液体系考察了不同工艺参数对RH-KTB顶吹氧吸收及脱碳和脱气过程的影响.实验结果表明,增大提升气量和顶吹气量,以及降低顶枪高度均有利于顶吹氧吸收过程的进行;增大提升气量有利于脱碳过程的进行;对于顶吹氧的吸收过程,真空室内液面高度存在一个最佳值;当采取顶枪吹氧操作时,应达到最佳真空度以实现顶吹氧的快速吸收;当关闭顶枪吹氧时,应尽可能提高真空度以加速脱碳.

关键词: RH-KTB, 顶吹氧, 真空度, 水模型, 气-液反应

Abstract: To grasp the mass transfer in RH-KTB vacuum refining process, a water modeling was done on the scale of 1:5.5, and the NaOH-CO2 solution system was used to investigate the effects of different process parameters on the oxygen absorption, decarburization and degassing processes. The experimental results showed that either increasing the lifting gas flowrate and top blowing gas flowrate or decreasing the top lance height benefit the absorption rate of top blowing oxygen, while increasing the lifting gas flowrate benefits decarburization. The liquid surface level in the vacuum chamber has an optimum value for the absorption process of oxygen. When blowing oxygen with a top lance, the vacuum degree should reach its optimum value for fast absorption of oxygen. Moreover, when stopping the top blowing oxygen operation, the vacuum degree should be increased as high as possible to accelerate decarburization.

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