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| 160 mm×160 mm小方坯连铸结晶器内流场数值模拟 | |
| 引用本文： | 薛瑞,张燕超,张彩军,王重君,刘志远.160 mm×160 mm小方坯连铸结晶器内流场数值模拟[J].中国冶金,2020,30(1):51-57. |
| 作者姓名： | 薛瑞 张燕超 张彩军 王重君 刘志远 |
| 作者单位： | 1.华北理工大学冶金与能源学院, 河北 唐山 063000; 2.河北省高品质钢连铸工程技术研究中心, 河北 唐山 063000; 3.唐山中厚板材有限公司炼钢部, 河北 唐山 063210 |
| 摘 要： | 采用Fluent软件对断面为160 mm×160 mm小方坯结晶器建立了三维稳态数学模型,以结晶器表面流速以及结晶器内钢液的流场状态为主要参考目标,模拟研究了160 mm×160 mm小方坯结晶器在不同拉速条件下相适应的水口浸入深度,并对数值模拟结果相应地进行了水模拟验证。结果表明,当小方坯结晶器的拉速为1.7 ～1.9 m/min、浸入深度为80～100 mm时,结晶器内流场较为适宜,不会因液面波动剧烈而造成卷渣等问题。研究结果为小方坯连铸结晶器制定合理的浇注工艺提供了理论指导。 |
| 关 键 词： | 小方坯 结晶器 流场 数值模拟 水模拟 |
Mathematical simulation of flow field in 160 mm×160 mm billet continuous casting mold |
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| XUE Rui,ZHANG Yan-chao,ZHANG Cai-jun,WANG Chong-jun,LIU Zhi-yuan.Mathematical simulation of flow field in 160 mm×160 mm billet continuous casting mold[J].China Metallurgy,2020,30(1):51-57. | |
| Authors: | XUE Rui ZHANG Yan-chao ZHANG Cai-jun WANG Chong-jun LIU Zhi-yuan |
| Affiliation: | 1.College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063000, Hebei, China; 2.Hebei Engineering Research Center of High Quality Steel Continuous Casting, Tangshan 063000, Hebei, China; 3.Steelmaking Department, Tangshan Heavy Plate Co., Ltd., Tangshan 063210, Hebei, China |
| Abstract: | A three-dimensional steady-state mathematical model was established for the 160 mm×160 mm billet mold with Fluent software. The surface velocity of the mold and the flow field state of the molten steel in the mold were taken as the main reference targets. The corresponding immersion depth of the nozzle in the under different casting rate conditions was simulated, and the numerical simulation results were verified by water simulation. The results showed that when the casting rate of the billet mold was 1.7-1.9 m/min and the immersion depth was within the range of 80-100 mm, the flow field in the mold was suitable, and there was no slag entrapment caused by the violent fluctuations of the liquid level. The research results can provide theoretical guidance for the development of a reasonable casting process for the billet continuous casting mold. |
| Keywords: | billet mold flow field numerical simulation water simulation |
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