连铸中间包钢水夹杂物浓度的数值模拟

Numerical Simulation of Dimensionless Inclusion Concentration in T-Shape Tundishes

以宝钢二连铸50t“T型”中间包为研究对象,采用有限差分方法,计算了中间包的三维流场、温度场及量纲为1的夹杂物浓度的分布,分析了中间包的内部结构、中间包钢水液面高度及夹杂物当量直径对夹杂物排出率的影响.结果表明,双坝、堰“T型”中间包对夹杂物上浮十分有利.

The three-dimensional flow field, the temperature distribution and the dimensionless inclusion concentration in a T-shape tundish were studied by SIMPLE method. The influences of particles diameter, inner structure of the tundish and the depth of liquid steel on the ratio of removed inclusion particles were discussed. The results indicate that inclusions can be removed easily from liquid steel with double dam and weir in T-shape tundishes.