ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2011, Vol. 32 ›› Issue (4): 10-13.

• 试验研究 • 上一篇    下一篇

210 t RH精炼过程夹杂去除和卷渣的物理模拟

迟云广1, 沈巧珍1, 吴墨环1, 彭明耀2, 肖尊湖2   

  1. 1武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,武汉430081 ;
    2华菱涟源钢铁有限公司,娄底417009
  • 收稿日期:2011-03-15 出版日期:2011-08-01 发布日期:2022-10-31
  • 通讯作者: 通讯作者:沈巧珍,教授,武汉科技大学材料与冶金学院,武汉430081
  • 作者简介:迟云广(1986-) ,男,硕士研究生,冶金过程数学物理模拟和计算机控制。

Physical Simulation of Inclusion Removal and Slag Entrapment in 210 t RH Refining Process

Chi Yunguang1, Shen Qiaozhen1, Wu Zhaohuan1, Peng Mingyao2, Xiao Zunhu   

  1. 1 Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081 ;
    2 Lianyuan Iron and Steel Company, Loudi 417000
  • Received:2011-03-15 Published:2011-08-01 Online:2022-10-31

摘要: 通过几何相似比1:4的水模型,研究了钢厂210 t RH精炼的处理时间、驱动气体流量、真空度、气孔数和浸入深度对夹杂物去除的影响以及底吹方式和气体流量对卷渣量的影响。模拟试验结果表明,处理24 min可去除约90%夹杂物,真空室下降时双透气砖短时间底吹氩气可明显减少钢液卷渣量。得出210 t RH精炼合适的工艺参数为驱动气体流量164.2m3/h,气孔数8个,浸入深度500mm,真空室绝对压力4000 Pa;双透气砖吹氩总流量为90m3/h。

关键词: 210 t RH精炼, 夹杂物, 卷渣, 水模型

Abstract: Effect of steel works 210 t RH refining treatment time, driving gas flow rate, vacuum, number of stomata and immersion depth on inclusion removal and the effect of bottom-blowing pattern and gas flow rate on amount of slag entrapment have been studied by using geometric similarity ratio 1:4 water model. Simulation test results show that the inclusions in liquid decrease by ~90% as treatment for 24 min and at vacuum chamber descending the short-term bottom argon blowing by double porous brick is obviously available to decrease the amount of slag entrapment in liquid. It is obtained that suitable process parameters for 210 t RH refining are driving gas flow rate- 164. 2 m3/h, 8 stomata, immersion depth- 500 mm, absolute pressure in vacuum chamber- 4 000 Pa and double porous brick total argon blowing flow rate- 90 m3/h.