东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2009, Vol. 30 ›› Issue (8): 1131-1134.DOI: -

• 论著 • 上一篇    下一篇

180t LF水模拟实验研究

窦力威;于赋志;沈峰满;   

  1. 东北大学材料与冶金学院;鞍钢股份有限公司技术中心;
  • 收稿日期:2013-06-22 修回日期:2013-06-22 出版日期:2009-08-15 发布日期:2013-06-22
  • 通讯作者: Dou, L.-W.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50474014)

On hydraulic model for 180 t LF process

Dou, Li-Wei (1); Yu, Fu-Zhi (2); Shen, Feng-Man (1)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China; (2) Technological Centre, Angang Steel Co. Ltd., Anshan 114001, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2009-08-15 Published:2013-06-22
  • Contact: Dou, L.-W.
  • About author:-
  • Supported by:
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摘要： 以某炼钢厂180 t钢包炉为原型,根据相似理论,通过水模型实验,分别考察了精炼过程中底吹位置、加料位置及底吹气量等操作参数对钢包内钢液混匀状况的影响,得出了各参数对钢包混匀状况的影响规律.综合考虑水模型实验过程中的现象和其他因素,得出180 t钢包炉最佳操作参数:最适宜底吹位置在0.3R附近,最适宜的加料位置在底吹喷嘴正上方,正常精炼时的底吹搅拌气量为40~90 m3/h;钢包炉精炼及微调成分后,最佳取样位置在钢包炉加料部位,取样前应至少搅拌2 min.

关键词: 钢包炉, 精炼, 底吹搅拌, 水模型实验

Abstract: A hydraulic model was developed according to the similarity principle to study the fluid flow in a 180 t ladle furnace (LF) in a certain steelmaking plant. The effects of such operation parameters as bottom blowing position, charging position and argon flowrate on the homogenization condition of molten steel in ladle were investigated, thus grasping how those parameters affect the homogeneity of molten steel. Taking account of the physical phenomena occurring in the hydraulic model test and other factors comprehensively, the optimal operation parameters for an 180 t ladle furnace were obtained, i.e., the ladle bottom blowing position is approximately 30% of the radius from the cylindrical center, the charging position is just above the bottom nozzle and the argon flowrate of bottom blowing is approximately 40-90 m3/h. The best sampling point after LF refining and composition microadjustment is the charging position, and the sampling operation shall be done after stirring for at least 2 min.

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