Based on the on-site investigation and the principle of compressible flow, the working oxygen pressure should be matched to the Mach-number at the nozzle in designing nozzle and oxygen supply schedule so that the higher penetration depth and the more blending energy can be obtained for reducing energy loss by shock wave in the ultrasonic oxygen jet in the normal BOF steelmaking. For some special BOF blowing technologies, such as steelmaking with high phosphorus hot metal, post combustion oxygen lance, hot metal pretreatment, etc, the difference between working oxygen pressure and designed diffusion pressure which is related to Mach-number is necessary, so that the velocity of the oxygen jet will be decreased because of shock wave for expected metallurgical results.
参考文献
| [1] | Arbulamovich.Practical Gas Dynamics[M].LIANG Xiu yan Trans.Beijing:High Education Press,1955 |
| [2] | 杨文远,蒋晓放,王明林,崔健,赵元,刘路长.大型转炉炼钢工艺参数优化的研究[J].钢铁,2010(10):27-32. |
| [3] | 杨文远,崔健,蒋晓放,王明林,徐小伟.大型转炉复吹技术的研究[J].钢铁,2011(05):1-6. |
| [4] | 杨文远,邹节忠,王明林,卢凯.激波在转炉炼钢中的应用[J].钢铁,2010(01):104-107. |
| [5] | WU Fen-lin;CAI Fu shi.Oxygen Lance Design of BOF[M].北京:冶金工业出版社,1982 |
| [6] | Shapiro A H;CHEN Zi-li,Trans.The Dynamics and Thermodynamics of Compressible Fluid Flow[M].北京:科学出版社,1953 |
| [7] | Peklke R D;SHAO Xiang-hua.BOF Steelmaking[M].北京:冶金工业出版社,1976 |
| [8] | ZHAN Qing;LIU Jian-gang;YAO Xi-ren.Principle of Oxygen Converter Steelmaking[M].北京:冶金工业出版社,1975 |
| [9] | YANG Wen yuan;ZHANG De-ruing;LIU Zhi-chang et al.Development and Application of Converter Oxygen Lance With PostCombustion[J].Iron & Steel,1994,29(04):14. |
| [10] | Trantini B;Vayssiere P.Comment on the OLP Process[J].Journal of the Iron and Steel Institute,1959(192):143. |
| [11] | 康复,陆志新,蒋晓放,钟志敏.宝钢BRP技术的研究与开发[J].钢铁,2005(03):25-28. |
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