板坯电磁加热中间包钢液流动特性和结构优化

doi:10.13228/j.boyuan.issn1005-4006.20220071

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Abstract The use of electromagnetic induction heating technology on the tundish can effectively compensate for the temperature drop of the molten steel, realize constant temperature and low temperature pouring. In order to make the electromagnetic induction heating tundish technology suitable for continuous slab casting, a mathematical model for the double-strand slab induction heating tundish was established, and the influence of the induction heating technology on the flow and temperature characteristics in the double-strand slab tundish was studied. The effects of dam structure and channel angle on temperature field and flow behavior of molten steel were investigated. The results show that the channel induction heating technology cannot be directly applied to double-strand slab casting, and it is necessary to optimize the tundish structure. Electromagnetic induction heating can significantly increase the temperature of molten steel in the distribution room of the tundish, but a short-circuit flow will occur. Retaining walls and dam structures are very effective in reducing short-circuit flow and uniformizing the molten steel temperature. When the distance between the dam and the nozzle is 0.5 m, the flow state of the molten steel is the best, and the temperature distribution of molten steel is relatively uniform. From the point of view of the flow behavior of molten steel, adjusting channel expansion angle is not suitable for the double-strand slab induction heating tundish. Through a reasonable heating power mode, the pouring temperature fluctuation can be controlled within 5 K.

Key words： double-strand slab tundish induction heating temperature field flow field structure optimization

Received: 09 May 2022

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	Articles by authors
	DUAN Peng-fei
	YANG Bin
	DENG An-yuan
	XU Xiu-jie
	WANG En-gang

Cite this article:

DUAN Peng-fei,YANG Bin,DENG An-yuan等. Steel flow characteristics and structure optimization for slab electromagnetic induction heating tundish[J]. CONTINUOUS CASTING, 2022, 41(4): 27-35.

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http://www.chinamet.cn/Jweb_lz/EN/10.13228/j.boyuan.issn1005-4006.20220071 OR http://www.chinamet.cn/Jweb_lz/EN/Y2022/V41/I4/27

[1]	陈希青, 肖红, 王璞, 等. 双通道感应加热中间包的三维磁流热耦合模型[J]. 钢铁, 2021, 56(6): 48.
[2]	王凯民, 唐海燕, 肖红, 等. 六流双通道感应加热中间包钢水流动控制[J]. 中国冶金, 2022, 32(2): 84.
[3]	麻永林, 刘进飞, 邢淑清, 等. 连铸中间包通道式电磁感应加热数值模拟[J]. 连铸, 2016 (6): 50.
[4]	袁己百, 马志民, 殷攀, 等. 四流H型感应加热中间包控流装置设计[J]. 连铸, 2021 (6): 85.
[5]	熊巧铃, 艾新港, 王琼, 等. 冲击区体积对感应加热中间包流动影响数学模拟[J]. 连铸, 2021(5): 43.
[6]	毛斌, 李爱武, 马志民, 等. 连铸中间包八字型通道感应加热与精炼技术的研发及应用[J]. 炼钢, 2015, 31(1): 1.
[7]	姜学锋, 时朋召, 王玉平, 等. 单流厚板坯中间包物理模拟研究和应用[J]. 特殊钢, 2022, 43(1): 16.
[8]	曾红波, 艾新港, 李胜利, 等. 减轻冲刷的单流通道式感应加热中间包结构优化数学模拟[J]. 特殊钢, 2021, 42(3): 1.
[9]	冯孔方, 马建超, 李建伟, 等. 双流板坯连铸中间包结构优化及改造[J]. 连铸, 2021 (5): 83.
[10]	刘崇林, 崔衡, 李源源, 等. 双流板坯中间包结构优化的数理模拟研究[J]. 冶金设备, 2019 (4): 12.
[11]	YANG B, DENG A Y, DUAN P F, et al. “Power curve” key factor affecting metallurgical effects of an induction heating tundish[J]. Journal of Iron and Steel Research International, 2022, 29(1): 151.
[12]	张杰, 郑淑国, 朱苗勇. 加热功率对感应加热中间包影响的数值模拟[J]. 中国冶金, 2021, 31(10): 68.
[13]	YUE Q. Molten steel flow, heat transfer and inclusion distribution in a single-strand continuous casting tundish with induction heating[J]. Metals, 2021, 11(10): 1536.
[14]	王勇, 赵梦静, 杨树峰, 等. 中间包等离子加热的物理模拟[J]. 工程科学学报, 2020, 42(增刊1): 68.
[15]	Launder B E, Spalding D B. The numerical computations of turbulent flows[J]. Computer Methods in Applied Mechanics and Engineering, 1974, 3(2): 269.
[16]	Spezzapria M, Dughiero F, Forzan M, et al. Multiphysics FEM simulation of contour induction hardening process on aeronautical gears[J]. Journal of Iron and Steel Research International, 2012(s1): 95.
[17]	YANG B, DENG A Y, LI Y, et al. Numerical simulation of flow and solidification in continuous casting process with mold electromagnetic stirring[J]. Journal of Iron and Steel Research, International, 2019, 26(3): 219.
[18]	YANG B, DENG A Y, LI Y, et al. Exploration of the relationship between the electromagnetic field and the hydrodynamic phenomenon in a channel type induction heating tundish using a validated model[J]. ISIJ International, 2022, 62(4): 677.
[19]	YANG B, DENG A Y, KANG X L, et al. Numerical study on the influence of distributing chamber volume on metallurgical effects in two-strand induction heating tundish[J]. Metals, 2022, 12(3):509.
[20]	张晗, 代传民, 雷洪, 等. 通道式感应加热中间包钢液流动特性的数值模拟[J]. 连铸, 2021(5): 54.
[21]	杨滨. 通道式感应加热中间包钢液和夹杂物行为模拟[D]. 沈阳:东北大学, 2020.
[22]	张晓萌, 李少翔, 唐海燕, 等. 非对称中间包稳态浇铸与换包操作的冶金效果[J]. 钢铁研究学报, 2019, 31(1): 15.
[23]	Sahai Y, Emi T. Melt flow characterization in continuous casting tundishes[J]. Transactions of the Iron and Steel Institute of Japan, 2007, 36(6): 667.
[24]	曾俊, 代开举, 薛飞, 等. 中间包底吹气正交试验数值模拟研究[J]. 连铸, 2017 (4): 6.
[25]	窦为学, 姚海英, 常立山, 等. 通道式感应加热中间包流场物理模拟研究[J]. 连铸, 2019 (3): 29.
[26]	姜学锋, 时朋召, 王玉平, 等. 单流厚板坯中间包物理模拟研究和应用[J]. 特殊钢, 2022, 43(1): 16.
[27]	李少翔, 铁占鹏, 郑宝安, 等. 三流大方坯连铸中间包流场优化数值模拟研究[J]. 连铸, 2019 (5): 47.
[28]	马钰, 唐海燕, 张硕, 等. 通道式感应加热五流中间包流场的水力学模拟[J]. 钢铁, 2020, 55(11): 57.
[29]	韩毅, 肖瑶, 于恩林, 等. 钢铁精准化电磁加热技术研究现状和发展趋势[J]. 钢铁, 2019, 54(12): 1.
[30]	王兴宇, 韩延申, 刘青, 等. 末端电磁搅拌对弹簧钢连铸坯内部质量的影响[J]. 钢铁, 2020, 55(5): 59.