单流板坯连铸中间包流体流动控制与效果  

Fluid flow control for a single-strand tundish in slab continuous casting

作　　者：钟良才[1] 王胡强[1] 丁宁[1] 朱英雄[1] 金爱军 胡道峰 马军 马骏 

机构地区：[1]东北大学钢铁冶金研究所,辽宁沈阳110004 [2]南京钢铁股份有限公司,江苏南京210035

出　　处：《炼钢》2007年第4期33-35,共3页Steelmaking

摘　　要：通过物理模拟实验,研究了南钢板坯连铸不同结构中间包的流动特性,优化了中间包结构。中间包结构优化后,最小停留时间提高120%,浓度峰值时间提高97%,死区体积分率降低72%。实验结果表明,开发的异型边结构的湍流控制器可以更好地改善单流中间包的流体流动特性。现场实际应用的结果表明,中间包结构优化后,铸坯夹杂物面积比下降了32%。Fluid flow in the single-strand tundish with different configuration in slab continuous casting at Nanjing Iron ＆ Steel Co. , had been studied in water modeling experiment to optimize the tundish configuration. With the optimal tundish configuration, the minimum residence time of liquid steel is increased by 1.2 times, the peak concentration time is increased by 97%, and the dead volume fraction is decreased by 72%. The experimental results showed that the special border turbulence inhibitor developed in the research can improve the flow characteristics parameters and fluid flow in the tundish greatly. It was shown from the results of industrial application that the inclusion area ratio of slab decreased by 32% with the optimal tundish configuration.

关 键 词：板坯连铸 中间包 控流装置 结构优化 物理模拟 实际应用 

分 类 号：TF777.1[冶金工程—钢铁冶金]