单流不对称中间包上下挡墙配合控流优化设计  

Optimization Design of One-strand Asymmetric Tundish with Dam and Weir

作　　者：吴启帆[1] 包燕平[1] 林路[1] 辛彩萍 闫小柏[1] 

机构地区：[1]北京科技大学钢铁冶金新技术国家重点实验室,北京100083 [2]北京科技大学冶金工程研究院,北京100083

出　　处：《铸造技术》2015年第3期688-691,共4页Foundry Technology

基　　金：教育部博士点专项基金资助项目(20130006110023);钢铁冶金新技术国家重点实验室开发基金资助项目(KF13-09)

摘　　要：以相似原理为基础,采用1∶2的水模型,研究了150 mm×1 268 mm板坯连铸单流不对称中间包内钢液的流动特征,通过对不同上下挡墙组合方式的研究,得出最优的组合方式,并与原型中间包的组合方式进行流场效果对比。结果表明,原型中间包控流装置的组合存在一些问题,通过正交试验得到上下挡墙的最优组合方案,优化后中间包的平均停留时间较原型提高了53.8%,包内的滞止时间较原型增加了13.75%,死区比例由41.20%降低至9.56%,活塞区比例增加11.33%,并且包内钢液的流动状态得到较大改善。Based on similar principle, the flow performance of liquid steel in one-strand asymmetric tundish of 150 min× 1 268 mm slab casting was studied by using 1：2 water model, the optimal array mode was gained based on the study of different army modes of dam and weir, and compared with the prototype tundish on the performance of flow field. The results show that there exists some problems for the prototype tundish, compared with the prototype tundish, the average resident time of the optimal array mode of dam and weir gained by using orthogonal experiment is increased by 53.8%, the minimum time is increased by 13.8%, dead area ratio deereases from 41.20% to 9.56%, plug-like area ratio is increased by 11.33%, and flow performance of liquid steel in tundish improves much.

关 键 词：中间包 水模型 控流装置 结构优化 

分 类 号：TF777[冶金工程—钢铁冶金]