气幕挡墙中间包仿真优化及其冶金效果  

Mathematical Simulation for Optimization of Tundish with Gas Curtain and Its Metallurgy Effects

作　　者：马光林[1] 皮怀玉 龚荣波 李全智[1] 邓乐锐 黄奥[3] 

机构地区：[1]首钢水城钢铁(集团)有限责任公司,六盘水553028 [2]北京联合荣大工程材料有限责任公司,北京101400 [3]武汉科技大学省部共建耐火材料与高温陶瓷国家重点实验室培育基地,武汉430081

出　　处：《特殊钢》2011年第2期37-40,共4页Special Steel

基　　金：国家科技攻关计划项目资助(2005BA325C)

摘　　要：根据水钢炼钢厂150 mm×150 mm六流连铸32 t中间包的结构操作工艺参数,采用数模仿真法研究了气幕挡墙技术对中间包内钢液流动特性及夹杂物去除的影响,并对HPB235和65钢进行了工业试验。结果表明,气幕挡墙可以有效改善钢液的流动状态,均衡各出口停留时间,有效延长钢液的平均停留时间,降低死区体积,提高夹杂物去除率。该技术适应多流中间包纯净钢冶炼的需求。According to structure and operation parameters of a 32 t tundish for 150 mm ×150 mm 6-strand concasting billet at steelmaking workshop, Shuicheng Steel, the effect of gas curtain technology on characteristics of liquid flow in tundish and removal rate of inclusion particles in steel has been studied by using mathematical simulation method, and the commercial test for casting HPB235 and 65 C steel is carried out. Results show that the gas curtain weir is available to improve flow situation of liquid, balance residence time at each outlet, effectively prolong the residence time of liquid in tundish, decrease dead zone volume and increase removal rate of inclusion particles. This technology is suitable to meet the requirement for cleanliness steel steelmaking with tundish for muhi-strand casting.

关 键 词：中间包 气幕挡墙 数模仿真 优化 工业实践 

分 类 号：TF777[冶金工程—钢铁冶金]