板坯连铸高拉速生产实践  

Production Practice for High Speed Continuous Casting Slab

作　　者：李金柱[1] 王胜东[1] 

机构地区：[1]首钢京唐钢铁联合有限责任公司,河北唐山063200

出　　处：《连铸》2014年第3期1-6,共6页Continuous Casting

摘　　要：为了提高首钢京唐炼钢的生产节奏,缩短连铸生产周期。研究在现有铸机参数的基础上,通过对结晶器冷却水、二冷配水、浸入式水口结构、保护渣成分等参数进行优化,3号铸机的最高拉速达到2.5 m/min,超过2.3 m/min的设计值。工业生产实践表明,转炉出钢温度降低,铸坯表层的夹杂物数量减少,提高了铸坯质量,体现了新一代钢铁工艺流程的优势。In order to improve the steel production efficiency and shorten the production cycle in Shougang Jingtang Iron and Steel Co. Ltd, the mould cooling water, second cooling water, submerged entry nozzle structure and the slag composition were optimized based on the existing caster parameters. The maximum casting speed of No.3 slab caster reached 2.5 m/min, exceeding the design value of 2.3 m/min. Industrial production practice shows that inclusions in slab surface decreases with the decreasing tapping temperature of converter, thus slab quality is improved, which shows the process advantage of the new generation of iron and steel.

关 键 词：高拉速 结晶器 浸入式水口 质量 

分 类 号：TF777.1[冶金工程—钢铁冶金]