| RH精炼循环流量优化的水模型研究 |
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| 引用本文： | 艾新港,包燕平,吴华杰,马鑫,贾楠. RH精炼循环流量优化的水模型研究[J]. 特殊钢, 2009, 30(3): 1 |
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| 作者姓名： | 艾新港 包燕平 吴华杰 马鑫 贾楠 |
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| 作者单位： | 北京科技大学冶金与生态工程学院，北京100083 |
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| 摘 要： | 以70 t钢包RH精炼装置为原型建立了1:3.27水模型,用流速法测量RH循环流量。分析了实际工艺条件下钢水的RH循环流量以及上升管吹气量、吹气孔内径、吹气孔高度、浸渍管插入深度等参数对RH循环流量的影响,并得出优化工艺参数。70 t钢包RH精炼实验结果表明,当上升管吹气量1 200 L/min,吹气孔内径3 mm时,轴承钢平均[O]比原工艺降低3×10-6;超低碳钢碳含量可降低到0.002%以下,脱碳时间比优化前明显减少。
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| 关 键 词： | RH精炼 水模型 循环流量 工艺优化 |
| 收稿时间： | 2008-11-26 |
A Study on Water Model for Circulation Flow Rate Optimization in RH Degassing Refining |
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| Ai Xingang,Bao Yanping,Wu Huajie,Ma Xin,Jia Nan. A Study on Water Model for Circulation Flow Rate Optimization in RH Degassing Refining[J]. Special Steel, 2009, 30(3): 1 |
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| Authors: | Ai Xingang Bao Yanping Wu Huajie Ma Xin Jia Nan |
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| Affiliation: | School of Metallurgical and Ecological Engineering, University of Science and Technology, Beijing 100083 |
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| Abstract: | A water model with linear scale 1 ; 3. 27 for a 70 t ladle RH unit has been established by using flow rale methed to measure RH circulation rate. RH circulation rate of liquid steel in real process condition and effect of parameters such as blow rate in up-gas tube, inner diameter of orifice T blowing up-gas traveling path and dipping depth of leg on RH circulation rate were analyzed to get optimizing process parameters. The commercial test of a 70 t ladle RH degassing refining showed that with blow rate 1 200 L/min in up-gas tube and inner diameter 3 mm of orifice, average [0] of bearing steel decreased by 3 X 10-6 as compared that with original process ； carbon content of extra-low carbon steel might decrease to less than 0. 002% and decarburization time obviously decreased as compared with that before optimization. |
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