东北大学学报:自然科学版 ›› 2019, Vol. 40 ›› Issue (8): 1105-1109.DOI: 10.12068/j.issn.1005-3026.2019.08.008

• 材料与冶金 • 上一篇    下一篇

铁水脱硫过程气泡平均直径的因次分析

王坤, 刘燕, 杨永坤, 张廷安   

  1. (东北大学 多金属共生矿生态化冶金教育部重点实验室, 辽宁 沈阳110819)
  • 收稿日期:2018-09-02 修回日期:2018-09-02 出版日期:2019-08-15 发布日期:2019-09-04
  • 通讯作者: 王坤
  • 作者简介:王坤(1989-),男,河南项城人,东北大学博士研究生; 刘燕(1970-),女,湖南湘乡人,东北大学教授,博士生导师;张廷安(1960-),男,河南周口人,东北大学教授,博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(U1760120);国家重点研发计划子课题(2017YFC0210403-04).

Dimensional Analysis of Average Bubble Diameter in Desulfurization of Hot Metal

WANG Kun, LIU Yan, YANG Yong-kun, ZHANG Ting-an   

  1. Key Laboratory of Ecological Metallurgy of Multi-metal Intergrown Ores of Ministry of Education, Northeastern University, Shenyang 110819, China.
  • Received:2018-09-02 Revised:2018-09-02 Online:2019-08-15 Published:2019-09-04
  • Contact: LIU Yan
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摘要: 为了减小镁蒸气铁水脱硫过程中的气泡直径,提高脱硫效率,通过水模型实验研究了气泡平均直径与设备参数、操作条件之间的关系.通过高速照相机采集不同实验条件下的气泡分布状态图;利用图像处理软件对所采集的图像进行处理,得到气泡平均直径.对实验中气泡平均直径的主要影响因素进行分析,由齐次原理和白金汉定律建立气泡平均直径与主要影响因素的关系式.根据实验数据求得拟合系数,得出了气泡平均直径与实验条件之间的准数方程.

关键词: 脱硫, 铁水, 气泡平均直径, 因次分析, 图像处理

Abstract: In order to decrease magnesium vapor bubble diameter in desulphurization of hot metal and to improve desulphurization efficiency, the effects of the equipment parameters and operating conditions on average bubble diameter were studied by a water model based experiment. The bubble dispersions under different experimental conditions were collected by a high-speed camera. The image analysis software was used to obtain the average bubble diameter under different experimental conditions and the major factors were analyzed by a water model based experiment. A relationship between the average bubble diameter and the major influencing factors was established, according to the homogeneous principle and Buckingham’s theorem. The relationship between the average bubble diameter and the experimental conditions can be obtained by fitting the related parameters with experimental data.

Key words: desulfurization, hot metal, average bubble diameter, dimensional analysis, image processing

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