四流大方坯连铸中间包的物理模拟研究

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Study on Physical Modeling of Four-strand Tundish for Bloom Continuous Caster

1. College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China;
2. Vanadium Extracting & Steelmaking Plant of PZH Steel, Panzhihua 617062, Sichuan, China

摘要: 针对近T型四流大方坯连铸中间包设置合理的控流装置问题,采用水力学模拟实验的方法在等温和非等温条件下分别对“V墙+坝”和“湍流器+坝”两种方案进行了正交优化实验。实验结果表明,该中间包在无控流装置时存在短路流,死区较大;“V墙+坝”1#方案能明显改善中间包内流场,使死区体积减小,活塞流体积增加,温度分布较均匀;“湍流器+坝”1^#方案对流场也有一定程度的改善,但仍然存在短路流和较大死区,流场和温度分布不均匀。
- 大方坯连铸 /
- 多流中间包 /
- 控流装置 /
- 物理模拟
Abstract: Water model test was taken to install proper flow control devices for a near T type four-strand bloom casting tundish.Two schemes,"V type baffles + dams" and "turbo stopper + dams",were optimized by orthogonal experiments under isothermal and non-isothermal conditions.The results show there are short circuit flow and large dead volume in the tundish without control devices."V type baffles + dams" case 1 can obviously improve the flow field,which makes dead volume decrease,plug volume increase and temperature distribution uniform."Turbo stopper + dams" can improve the flow field to a certain extent,but short circuit flow and large dead region still exist and flow field and temperature distribution are quite asymmetric.
- bloom continuous caster /
- multi-strand tundish /
- flow control devices /
- physical simulation