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›› 2015, Vol. 15 ›› Issue (1): 68-73.

• 反应与分离 • 上一篇    下一篇

钢包底吹氩去除钢中夹杂物的数值模拟

巨建涛 燕奔 赵福才 折媛 张朝晖   

  1. 西安建筑科技大学冶金工程学院 西安建筑科技大学冶金工程学院 西安建筑科技大学冶金工程学院 西安建筑科技大学冶金工程学院 西安建筑科技大学冶金工程学院
  • 收稿日期:2014-12-11 修回日期:2015-01-21 出版日期:2015-03-13 发布日期:2015-03-13
  • 通讯作者: 巨建涛

Numerical Simulation on Removal of Non-metallic Inclusions in a Bottom-blown Argon Ladle Furnace

JU Jian-tao YAN Ben ZHAO Fu-cai SHE Yuan ZHANG Zhao-hui   

  1. School of Metallurgical Engineering, Xi'an University of Architecture and Technology School of Metallurgical Engineering, Xi'an University of Architecture and Technology School of Metallurgical Engineering, Xi'an University of Architecture and Technology School of Metallurgical Engineering, Xi'an University of Architecture and Technology School of Metallurgical Engineering, Xi'an University of Architecture and Technology
  • Received:2014-12-11 Revised:2015-01-21 Online:2015-03-13 Published:2015-03-13
  • Contact: JU Jian-tao

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摘要： 采用数值模拟方法，研究了某钢厂60 t钢包透气砖狭缝长度和条数及吹氩流量和时间对夹杂物去除的影响. 结果表明，不同长度的狭缝都存在利于夹杂物去除的临界吹氩流量，狭缝长度从10 mm增到30 mm，临界吹氩流量由125 L/min增至225 L/min，夹杂物去除率由65%增至76%；夹杂物去除主要发生在前12 min，狭缝数为16条时，夹杂物去除率最大；其他条件一定时，吹氩量过大反而不利于夹杂物去除. 工业实践表明，数学模型能很好地模拟钢中夹杂物的去除.

关键词: 透气砖狭缝, 吹氩, 夹杂物, 去除, 数值模拟, 钢包

Abstract: The effects of plug slit size and number, and argon blowing flow rate on the inclusion removal were studied by numerical simulation in a 60 t bottom argon blowing ladle furnace. The results showed that there was an optimal blowing argon flow rate that was conducive to removal of inclusion for different size slits. When the slit size increased from 10 mm to 30 mm, the critical blowing argon rate increased from 125 L/min to 225 L/min, the removal rate of inclusion would increase from 65% to 76%. The removal of inclusion occurred mainly in the first 12 min of argon blowing, and the removal rate of inclusion reached a maximum value when the slit number was 16. But an excessive argon flow rate had negative effect on the removal of inclusion when the other conditions were fixed. The industrial practice showed that the mathematical model could simulate the removal of inclusion well.

Key words: plug slit, argon blowing, inclusion, removal, numerical simulation, adle furnace

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