摘要
结合唐钢中厚板材公司现场生产情况,通过水模型实验,对中间包内部结构优化,结果表明“抑湍器+单挡墙+双挡坝”方案为最优方案,死区比例为0.14%,活塞区比例0.23%,有利于夹杂物在中间包内充分的上浮和吸收。通过对现场浸入式水口优化,利用镭目自动控制液面起渣线及中间包车自动升降功能,实现一支水口在一个中间包寿命周期内使用四道渣线,减少了一个浇注周期内快换水口操作,有效的提高了现场连铸工序钢水洁净度。
The internal structure of slab tundish was optimized by water modeling experiment based on the practical production.The results showed that the scheme containing turbulence suppression device,single baffle and double dams was the best solutions.In this condition,the dead zone volume proportion was 0.14%,the active zone volume proportion was 0.23%,which was favorable for the removal of inclusions and increase of yield of molten steel.The submerged nozzle was optimized to use four slag lines during a casting cycle by radium automatic control liquid level function and automatic lifting function of tundish car.Through this operation,submerged nozzle change times was decreased by one, and the purity of molten steel during casting process was improved effectively.
作者
许建飞
刘志远
王重君
程巨广
田宝义
张杰
XU Jian-fei;LIU Zhi-yuan;WANG Chong-jun;CHENG Ju-guang;TIAN Bao-yi;ZHANG Jie(Publishing Center,North China University of Science and Technology,Tangshan 063210,Hebei,China;HBIS Tangshan Heavy Plate Co.,Ltd.,Steelwork Department,Tangshan 063610,Hebei,China)
出处
《连铸》
2018年第6期61-66,共6页
Continuous Casting
