D0I:10.132ssn1006-9356.20230243September20232023年9月ChinaMetallurgy中国冶金第33卷第9期Vol.33,No.9.p43-51浇注钢包环出钢口多孔透气塞吹氩去夹杂行为数值模拟刘宏强，郑淑国，朱苗勇（东北大学冶金学院，辽宁沈阳110819）摘要：针对浇注钢包环出钢口多孔透气塞吹氩去夹杂工艺，以国内某钢厂130t钢包为研究对象，建立VOF-DPM耦合数学模型，考察了浇注吹氩条件下钢液流场的发展过程以及余钢高度、吹氩流量、透气塞堵塞个数对钢包浇注过程夹杂物去除的影响规律。结果表明，浇注初期，随吹氩时间增加，气液两相区逐渐增大，钢包水口上方的2个循环流逐渐变大，当吹氩时间为12s时，钢包内形成稳定的气液两相流；随余钢高度的降低，夹杂物的去除率逐渐增加，但当余钢高度从500mm降至250mm范围内时，夹杂物去除率增幅变缓；随吹氩流量的增加，夹杂物去除率存在2个局部最优点（30L/min和60L/min），在这2个局部最优吹氩流量前后，夹杂物的去除率均呈先增大后减小的趋势；与未堵塞相比，堵塞1个透气塞时，夹杂物的去除率相差不大，而堵塞2、3个透气塞时，夹杂物去除率下降明显。研究结果可为该工艺实际应用提供理论指导。关键词：浇注钢包；夹杂物；吹氩流量；余钢高度；透气塞堵塞个数文献标志码：A文章编号：1006-9356（2023）09-0043-09NumericalsimulationofinclusionremovalbehaviorbyargonblowingwithmultipleplugsaroundtappingholeinteemingladleLIUHongqiang,2ZHENGShuguo,2ZHUMiaoyong(SchoolofMetallurgy,NortheasternUniversity,Shenyang110819,Liaoning,China)Abstract:Accordingtotheinclusionremovalprocessbyargonblowingwithmultipleplugsaroundtappingholeinteemingladle,VOF-DPMcouplingmathematicalmodelwasestablishedofa130tladletostudytheprocessofmol-tensteelflowfieldunderargonblowingconditionsandtheinfluenceofargonblowingflowrate,residualsteelheightandthenumberofblockedplugsoninclusionremovalrateduringladleteemingprocess.Theresultsshowthat,intheearlystageofteeming,withtheincreaseofargonblowingtime,thegas-liquidtwo-phaseregiongraduallyin-creases,andthetwocirculatingflowsabovetheladlenozzlegraduallybecomelarger.Whentheargonblowingtimeis12s,stablegas-liquidtwo-phaseflowisformedintheladle.Withthedecreaseoftheresidualsteelheight,thein-clusionremovalrateincreasesgradually,butwhen...
