结晶器粘结影响因素分析及改进措施

Analysis on Influence Factors of Mould Sticking and Improvement Measures

结合生产实际,分析认为影响连铸结晶器粘结的主要因素包括:钢水纯净度、温度,保护渣性能,水口参数,液面波动及操作因素等,采取提高钢水质量、优化保护渣参数、减少非稳态操作等改进措施,降低了粘结发生的概率,使炉次粘结报警率从2.9%减少到1.8%,保证了生产的稳定顺行。

This article analyzes the influencing factor for continuous casting mould sticking. The major factors of sticking are the cleanness and temperature of molten steel, protecting slag performance, submerged nozzle parameter, liquid surface waviness and unreasonable operation. Sticking probability has been greatly reduced with the help of improving molten steel quality, optimizing protecting slag parameter, decreasing unsteady state operation etc. Slab yield has been improved and heat sticking alarming rate decreased from average 2.9%to 1.8%. The smooth working and stabilization production can be guaranteed.