冲击区体积对感应加热中间包流动影响数学模拟

doi:10.13228/j.boyuan.issn1005-4006.20210067

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摘要通道式感应加热中间包能够对包内钢水的热量进行及时有效的补偿,有利于提高铸坯质量。建立了某厂五流四通道感应加热中间包的数学模型,研究冲击区体积对中间包内钢液流动的影响。结果表明,冲击区体积占前腔比例的45%时,双峰和短路流问题得到有效解决,各流间钢水分配较为合理,中间包内部钢液能够获得较好的流动性能,中间包总体停留时间达到1 020 s,死区体积降低为11.5%,3个下水口达到峰值的时间较为一致,最大时间差为49 s,达到峰值的平均时长为335 s。

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	熊巧铃
	艾新港
	王琼
	杜冰
	刘海啸
	宁哲

关键词 ：感应加热, 中间包, 优化模拟, 流动性, 冲击区体积

Abstract：Channel type induction heating tundish can compensate the heat of molten steel in time and effectively, which is conducive to improving the quality of slab. A mathematical model of induction heating tundish with five streams and four channels is established to study the influence of the volume of impact zone on the flow of molten steel in tundish. The results show that when the volume of impact zone accounts for 45% of the front chamber, the problems of bimodal flow and short circuit flow are effectively solved, the water distribution among the streams is more reasonable, and the flow performance of molten steel in tundish is better. The results show that the total residence time of tundish reaches 1 020 s, and the dead zone volume reduces to 11.5%. The time for the three nozzles to reach the peak is consistent, the maximum time difference is 49 s, and the average time to reach the peak is 335 s.

Key words： induction heating tundish optimization simulation liquidity volume of impact zone

收稿日期: 2021-06-09

引用本文:

熊巧铃, 艾新港, 王琼, 杜冰, 刘海啸, 宁哲. 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, 40(5): 43-48. XIONG Qiao-ling, AI Xin-gang, WANG Qiong, DU Bing, LIU Hai-xiao, NING Zhe. Mathematical simulation of impact zone volume on flow in inductively heated tundish. CONTINUOUS CASTING, 2021, 40(5): 43-48.

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