板坯连铸结晶器液位波动研究及控制实践  

Research and practice of the slab casting mould level fluctuation

作　　者：马娥 鲁献辉[2] 刘红艳[2] 

机构地区：[1]河北钢铁技术研究总院,河北石家庄052165 [2]河北钢铁集团邯钢公司,河北邯郸056015

出　　处：《连铸》2015年第4期35-39,共5页Continuous Casting

摘　　要：2013年以来,河钢邯宝公司炼钢厂品种钢产量在增加,但结晶器液面波动所导致的质量问题也是时有发生。本文作者通过现场跟踪,找出了不同类型的结晶器液面波动及其曲线特征,并针对导致液面发生波动的原因采取了对应的优化措施。通过技术攻关,取得了显著成效。(1)结晶器液面波动大的炉次比例由原来的9.63%降低至3.47%;(2)关于超低碳钢生产,因结晶器液面波动而导致SEN水口更换的比例由16.67%减少至6.67%;(3)提高了液面波动控制水平,降低了液面波动的程度及频率,提升了产品质量。Since 2013,variety steel＇s production of He Steel Hanbao company steelmaking plant is increased,but the problems that the casting mould level fluctuation causes quality problems occur occasionally. In this paper,the author found out the different types of mould level fluctuation and its characteristic curve through on-site tracking. According to the liquid level fluctuation causes,the corresponding optimization measures were taken. Through the technical research,notable results were achieved.（1） Fluctuation meniscus furnace ratio was lowered from 9.63% to 3.47%;（2） For ultra- low carbon steel,SEN nozzle replacement ratio due to the fluctuation of meniscus was reduced from 16.67% to 6.67%;（3）The level of fluctuation of the liquid level control was improved,the severity and frequency of the surface wave was reduced,and the quality of products was enhanced.

关 键 词：液面波动 吹氩参数 塞棒 结晶器 

分 类 号：TF341.6[冶金工程—冶金机械及自动化]