全水口自旋流与电磁搅拌协同结晶器流动传热行为研究

Study on steel flow and heat transfer in continuous casting mold with full-nozzle automatic swirling flow technology and electromagnetic stirring

来源:中文会议(科协)
中文摘要英文摘要

旋流水口连铸是从源头上优化结晶器内流动和传热行为的重要技术。本文利用数值模拟手段对全水口自旋流连铸开展研究,分析了传统/旋流水口协同电磁搅拌下大圆坯结晶器流动传热行为。结果表明,与传统水口相比,旋流水口连铸能有效消除结晶器冲击流,加速钢水过热去除。旋流水口协同电磁搅拌下钢液速度和温度更加均匀,与旋流水口+反向搅拌相比,同向搅拌下钢水过热进一步降低约 2 K。

Swirling flow nozzle continuous casting is an important technology to optimize the steel flow and heat transfer in mold.In this paper,the steel flow and heat transfer in large round bloom mold under the conventional nozzle or swirling flow nozzle with the mold electromagnetic stirring(M-EMS)were analyzed.The results showed that swirling flow nozzle casting can effectively eliminate the impinging flow in mold and accelerate the dissipation of steel super-heat compared to a conventional nozzle.The application of swirling flow nozzle coupled with M-EMS can obtain a more uniform velocity and temperature distribution.When the M-EMS was in the opposite rotational direction as the swirling flow in nozzle,the steel super-heat can be decreased by about 2 K.

谢清华;倪培远;厉英;

东北大学冶金学院,沈阳 110819;东北大学冶金学院,沈阳 110819;东北大学冶金学院,沈阳 110819;

2023年(第二十四届)全国炼钢学术会议

旋流水口 连铸 数值模拟 流动 传热

swirling flow nozzle continuous casting numerical simulation steel flow heat transfer

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