两流板坯连铸中间包控流装置的优化  

Study on Optimization of Flow Control Devices in Two Strand Slab Continuous Casting Tundish

作　　者：李娇[1] 李京社[1] 杨树峰[1] 孙丽媛[1] 林晓川[1] 白瑞国[1,2] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]河北钢铁集团承钢分公司,河北承德067002

出　　处：《钢铁钒钛》2010年第3期44-49,共6页Iron Steel Vanadium Titanium

基　　金：首钢-北京科技大学共建产学研研究生教育培养基地项目(200901)

摘　　要：在相似理论的基础上,按照1∶3的比例建立了"两流板坯连铸中间包"水力学模型,通过挡墙与挡坝不同高度及位置的组合来优化中间包的内部结构并确定出最佳设计方案。试验结果表明:优化后能将原型中间包的滞止时间由83 s延长到97 s,平均停留时间由296 s延长到432 s,死区由46%减小到21%,电导率微观波动值由0.04 ms/cm降低到0.025 ms/cm以内。Based on the similar theory,water model of two strand slab continuous casting tundish was established in the ratio of 1∶3.The inner structure of tundish is optimized by the combination of weirs and dams with different heights and positions.The experiment results show that the minimum residence time in the modified tundish increases from 83 s to 97 s,the mean residence time increases from 296 s to 432 s,the dead zone volume decreases from 46% to 21% and all the microscopic fluctuations decrease from 0.04 ms/cm to 0.025 ms/cm,the goal of optimizing the inner structure of the tundish has been achieved.

关 键 词：板坯连铸 中间包 挡墙 挡坝 水模拟 

分 类 号：TF777[冶金工程—钢铁冶金]