| RH精炼过程循环流量及夹杂去除的水模型研究 |
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| 作者姓名： | 骈建峰 沈巧珍 许 飞 郑和武 吴维轩 |
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| 作者单位： | 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,湖北 武汉,430081;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,湖北 武汉,430081;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,湖北 武汉,430081;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,湖北 武汉,430081;武汉钢铁股份有限公司第一炼钢厂,湖北 武汉,430083 |
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| 摘 要： | 以某钢厂120tRH真空精炼炉为原型建立水模型,研究不同工艺参数对RH精炼过程钢液循环流量和夹杂去除率的影响。结果表明,钢液循环流量随着驱动气体流量、浸入深度、真空度、气孔数的增大而增大,随处理量的增大而减小,实验室循环流量最佳工艺参数为:气体流量2.8m3/h,浸入深度150mm,真空度3614Pa,气孔数12个;夹杂去除率随驱动气体流量、浸入深度、真空度和气孔数的变化均不是单调的,而是存在一个最佳值使夹杂去除率最高,实验室去除夹杂的合理工艺条件为:气体流量2.2m3/h,浸入深度125mm,真空度为3500Pa,气孔数8个。
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| 关 键 词： | RH真空精炼 水模型 循环流量 去夹杂 |
| 收稿时间： | 7/3/2013 12:00:00 AM |
Water modeling study on circulation flow rate and inclusion removal in RH refining process |
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| Authors: | Pian Jianfeng Shen Qiaozhen Xu Fei Zheng Hewu and Wu Weixuan |
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| Institution: | Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China;Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China;Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China;Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China;First Steel-making Plant,Wuhan Iron and Steel Company Limited, Wuhan 430083, China |
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| Abstract: | A water model for a 120t RH degasser in a certain steel plant was established to investigate the influence of different technical parameters on the molten steel circulation flow rate and inclusion removal rate in RH refining process. The results show that the molten steel circulation flow rate increases with the increase in driving gas flow, immersion depth, vacuum degree, and aperture number and the decrease in the amount of molten steel treated. When the driving gas is 2.8m3/h, the immersion depth is 150mm, the vacuum degree is 3614Pa, and the aperture number is 12, the circulate flow rate in the laboratory conditions reaches the maximum. The change in inclusion removal rate with that in driving gas flow, immersion depth, vacuum degree, and aperture count is complex, and there exist optimal values for the highest inclusion removal rate, which are found in the laboratory conditions to be the driving gas flow at 2.2m3/h, immersion depth at 125mm, vacuum degree at 3500Pa, and aperture number at 8. |
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| Keywords: | RH vacuum refining water model circulation flow rate inclusion removal |
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