首钢小方坯连铸机中间包数值模拟分析  

Analysis of Mathematical Simulation on Tundish for Billet Caster at Shougang

作　　者：丁宁[1,2] 包燕平[1] 陈京生[2] 崔京玉[2] 孙齐松[2] 王立峰[2] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]首钢技术研究院,北京100043

出　　处：《特殊钢》2011年第5期8-10,共3页Special Steel

摘　　要：针对首钢160 mm×160 mm方坯连铸机14.5 t中间包建立数学模型,采用流体力学计算软件Fluent对4流异型中间包内钢液流动和温度进行了数值计算,得出中间包钢液流动的速度场、温度场和停留时间分布曲线。计算结果表明,各流最大温度差为8 K,应避免低过热度浇铸;1流死区体积分率为20%略大于其余各流(10%～20%)外,中间包钢水流动参数可以满足生产的需要。A mathematical model for 14. 5 t tundish casting 160 mm × 160 mm billet at Shougang is established and the numerical calculation of flow and temperature of liquid in shape tundish for 4-strand is ealculated by using fluid dynamic software Fluent to get the flow speed field, temperature field and residence time distribution curves of liquid in tundish. Calculation results show that the maximum temperature difference between each strand is 8 K, theretore the lower overheating extent liquid shall be avoided; besides the percentage of dead volume of Nol strand is 20% little larger than that other strands （ 10% - 12% ） , the flow parameters of liquid in tundish meet the requirement for casting operation.

关 键 词：160 mm×160 mm铸坯 中间包 数值模拟 停留时间分布曲线 温度场 

分 类 号：TF777[冶金工程—钢铁冶金]