侧孔长水口两流非对称中间包流场优化  

Optimization for Flow Field in an Asymmetric Two Strand Tundish by Using Shroud With Side-Hole

作　　者：赵岩[1] 雷洪[2] 周骏[2,3] 陈海耿[1] 孙中强[4] 邢国成[4] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110819 [2]东北大学材料电磁过程研究教育部重点实验室,辽宁沈阳110819 [3]中国联合工程公司,浙江杭州310022 [4]东北大学冶金技术研究所有限公司,辽宁沈阳l10819

出　　处：《钢铁》2012年第4期28-31,共4页Iron and Steel

基　　金：国家自然科学基金资助项目(50974146)

摘　　要：中间包流体流动直接影响连铸坯的质量,为了缩小非对称中间包两流之间的流动差异,利用水模型和数值模拟方法,研究了侧孔长水口中间包流体流动特性。研究结果表明:直通型长水口、圆形湍流控制器和单挡墙结构中间包两出口流体差异较大,侧孔长水口和多孔挡墙结构中间包两流之间平均停留时间差异是直通型长水口中间包的3/4,且近长水口侧出口的平均停留时间延长7.7%。Fluid flow in the tundish was one of the key factors to affect the slab quality.In order to decrease the difference of fluid flow between two strands,water model method and numerical simulation method were applied to investigate the fluid flow character in an asymmetric two-strand tundish.Exermental results show that there are greater difference of fluid flow between two strand in the tundish with straight shroud,circular turbulent inhibitor and single dam.But by using shroud with side-hole and multi-hole baffle,the difference of the anerage residue time between two strands is only 3/4 of that in the tundish with straight shroud,circular turbulent inhibitor and single dam.And the average residue time at the strand near the shroud rises by 7.7%.

关 键 词：非对称中间包 侧孔长水口 平均停留时间 水模型 数值模拟 

分 类 号：TF777[冶金工程—钢铁冶金]