带吸附杆水口内钢液及夹杂物运动物理模拟  

Physical simulation of steel flow and inclusions behavior in SEN with adsorption rod

作　　者：赵定国 高茗 李新 王书桓 

机构地区：[1]华北理工大学冶金与能源学院,河北唐山063009

出　　处：《炼钢》2016年第6期51-56,共6页Steelmaking

基　　金：国家自然科学基金项目(51304060);河北省高等学校科学技术研究项目(YQ2014011)

摘　　要：浸入式水口内夹杂物运动和吸附对于提高钢液洁净度有直接影响。通过水模拟试验,研究浸入式水口内吸附杆凹槽结构对钢水流动和夹杂物运动行为的影响规律。试验结果表明,吸附杆上凹槽位置一定时,矩型凹槽有利于夹杂物的聚集,但对主流区的卷吸影响较小,影响区比率的最大值为33%,导致夹杂物进入矩型凹槽的概率较小;仰角45°的钩型凹槽对夹杂物在凹槽内聚集作用较小,但对主流区的卷吸影响较大,影响区比率可达48%以上,有利于主流区夹杂物进入凹槽。The behavior of inclusions in the submerged entry nozzle has direct effect on the cleanliness of steel.The installation of an inclusion adsorption rod,i.e.an extension rod on the stopper end was proposed.The effects of the rod length and groove structure on fluid flow and inclusions behavior in the submerged entry nozzle were investigated via physical model experiments with plastic particles to simulate inclusions.The results show that rectangular groove is benefit for inclusions assembling,but the inclusions out of the groove have a little chance to enter it,and the maximum impact area ratio was33 %.For parallelogram-shaped grooves,the inclusions are able to enter the 45 groove and the maximum impact area ratio was over 48 %,but it is not benefit for inclusions assembling.

关 键 词：浸入式水口 吸附杆 夹杂物 物理模拟 

分 类 号：TF777.1[冶金工程—钢铁冶金]