减少唐钢中薄板坯连铸机黏结实践  

Practice of reducing sticking in medium-thin slab caster of Tangsteel

作　　者：赵建平 王帅 冯帅 武学强 金玉 吴志杰 刘鑫 ZHAO Jian-ping;WANG Shuai;FENG Shuai;WU Xue-qiang;JIN Yu;WU Zhi-jie;LIU Xin(Tangshan Iron and Steel Company,Hebei Iron and Steel Group,Tangshan 063016,Hebei,China)

机构地区：[1]河钢集团唐钢公司,河北唐山063016

出　　处：《连铸》2020年第1期74-78,共5页Continuous Casting

摘　　要：分析了唐钢中薄板坯连铸机黏结的原因,结果表明黏结主要由保护渣在坯壳与结晶器铜板间流入不均造成,通过选择合理的水口结构和板间氩气流量,保证结晶器液位稳定,控制中间包车对中偏差3 mm以内,结晶器振幅3.0~3.5 mm,应用漏钢预报系统,优化加渣操作和换水口操作等措施,最终使唐钢中薄板坯连铸机月平均黏结次数由10次降至2次。The causes of sticking in medium-thin slab caster of tangsteel are analysed. The results showed that the sticking is caused by uneven flow of mould powder between shell and copper plate. Measures such as selecting appropriate submerged nozzle structure,argon flow,stabilizing the mould level,controlling the center deviation of tundish car within 3 mm,controlling the mould amplitude 3.0-3.5 mm,applying the breakout prediction system,optimizing mould powder adding operation and submerged nozzle quick replacement operation are adopted. By means of corresponding measures being taken,the average monthly sticking times was decreased from 10 to 2.

关 键 词：中薄板坯连铸机 黏结 黏结次数 

分 类 号：TF341.6[冶金工程—冶金机械及自动化]