钢包软吹过程优化数学模拟和工业试验研究  

Mathematical simulation and plant trial on soft blowing process of ladle furnace

作　　者：刘风刚 任英[1] 段豪剑[1] 张立峰 LIU Fenggang;REN Ying;DUAN Haojian;ZHANG Lifeng(School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;Beijing Shougang Co.,Ltd.,qian'an 064404,China)

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]北京首钢股份有限公司,河北迁安064404

出　　处：《炼钢》2019年第6期24-30,共7页Steelmaking

基　　金：国家自然科学基金项目(51874032和51704018);中央高校基本科研业务费专项资金项目(FRF-TP-17-039A1);中国科协青年人才托举工程项目(2017QNRC001)

摘　　要：采用Eulerian-Lagrangian法对100 t钢包吹氩过程进行模拟计算,对不同吹氩流量下的钢包流场、气泡运动、液面形态和夹杂物去除进行了数学计算。优化结果表明,在当前的钢包条件下,吹氩流量为100~200 L/min时,渣眼裸露面积较小且夹杂物有较好的去除效果。此外,还对钢包软吹过程数学模拟结果进行了工业试验,在吹氩流量为150 L/min时,软吹前期钢水中大尺寸夹杂物上浮去除明显,软吹10 min可以有效提升钢水洁净度水平。In the current study,the Eulerian-Lagrangian method was adopted to simulate the soft argon blowing process of a 100 t ladle.The effect of different blowing argon flow on flow field,bubble movement,surface morphology,and inclusion removal was investigated by mathematical calculation.It was found that,a argon blowing flow rate of 100~200 L/min is beneficial to improve the surface morphology and inclusion removal.In addition,the mathematical modeling of the ladle soft blowing process was applied by an industrial experiment.With an argon blowing flow rate of 150 L/min,the early stage of the soft blowing,the large size inclusions were obviously removed.Ten minutes of soft blowing can effectively enhance the level of molten steel cleanliness.

关 键 词：数学模拟 夹杂物 软吹 钢包 

分 类 号：TF703.5[冶金工程—钢铁冶金]