RH精炼下降管吹氩工艺条件优化数值模拟研究  

Numerical Simulation Study on Process Conditions Optimization for Argon Injecting through Down-leg by RH Refining

作　　者：张硕 刘建华[2] 何杨[2] 何毅 信瑞山 张新华 ZHANG Shuo;LIU Jianhua;HE Yang;HE Yi;XIN Ruishan;ZHANG Xinhua(Ansteel Beijing Research Institute Co.,Ltd.,Beijing 102200,China;University of Science and Technology Beijing,Beijing 100083,China;CASIC Intelligence Industry Development Co.,Ltd.,Beijing 100039,China)

机构地区：[1]鞍钢集团北京研究院有限公司,北京102200 [2]北京科技大学,北京100083 [3]航天科工智慧产业发展有限公司,北京100039

出　　处：《鞍钢技术》2024年第6期84-90,共7页Angang Technology

基　　金：国家自然科学基金(52174292)。

摘　　要：通过数值模拟,研究了RH精炼下降管吹氩技术的气泡生成、运动行为及夹杂物去除行为。RH精炼下降管吹氩工艺条件优化后吹氩流量为3000 mL/min、下降管径为450 mm,气泡分布弥散性稍弱于原工况(吹氩流量为480 mL/min、下降管径为550 mm),但优化后气泡数量明显增多,气泡过滤体积略大于原工况,10μm夹杂物去除率为原工况的2倍。The formation of bubbles and their movement behaviors,and removing of inclusions based on the argon injection technology through down-leg by RH refining were studied by numerical simulations.After optimization of the process conditions for argon injecting through down-leg by RH refining,the flow rate of argon blowing was 3000 mL/min and the pipe diameter of the down-leg was 450 mm,while the distribution diffusibity of bubbles was slightly less diffuse than the initial working conditions(the argon-blowing flow rate was 480 mL/min,the down-leg diameter was 550 mm).However,the quantity of bubbles increased significantly and the bubble filtration volume was slightly larger than that under the initial working conditions.Particularly,the removal rate of inclusions with the size of 10μm was twice than that of the the initial working conditions.

关 键 词：RH精炼 下降管吹氩 气泡 夹杂物 数值模拟 

分 类 号：TG335[金属学及工艺—金属压力加工] TP3[自动化与计算机技术—计算机科学与技术]