期刊文献+

吹氩模式对钢包内多相流流动行为影响的数值模拟研究 被引量:1

Numerical simulation of the effects of argon blowing mode on themultiphase flow behavior in ladle
下载PDF
导出
摘要 以某钢厂150 t钢包为对象,通过数值模拟手段研究了吹氩模式和吹氩流量对钢包流场、钢渣界面行为和壁面剪应力分布的影响。结果表明:单孔吹氩模式下,钢包内环流远端流速低,钢渣界面流动不活跃,易导致此处渣层冷凝结壳;双孔等流量吹氩模式下,随着吹氩流量增大,钢渣界面流速增加,但其流动活跃性降低;双孔差流量吹氩下,大吹氩流量时钢渣界面能维持一定范围的活跃流动。当吹氩流量在120~240 L/min范围,单孔吹氩所形成的渣眼面积大于两种双孔吹氩模式;当吹氩流量超过240 L/min,双孔等流量吹氩下渣眼面积最大,双孔差流量吹氩对应的渣眼面积最小。另外,单孔吹氩下壁面剪应力最大,应力面积较小,双孔等流量吹氩下剪应力虽然显著降低,但分布区域面积增大。综上所述,双孔差流量吹氩模式可以在提高钢液精炼效率的同时,降低对钢包内衬耐火材料的流动侵蚀。 A 150 t ladle from a certain steel plant was taken as the research object,and the numerical simulation was carried out to study the effects of argon blowing mode and argon flow rate on the flow field,steel-slag interface behavior and wall shear stress distribution of the ladle.The results show that under a single-plus blowing mode,the velocity at the far end of the circulation inside the ladle is low,and the flow at the steel-slag interface is inactive,leading to the potential condensation and shell formation at this part of the slag layer.Under a dual-plus with equal argon flow rate mode,as the argon flow rate increases,the velocity at the steel-slag interface increases,but the dynamic activity decreases.Under the dual-plus with different argon flow rates mode,a certain range of active flow can be maintained at the steel-slag interface even at high argon flow rates.When the argon flow rate is in the range of 120~240 L/min,the slag eye areas formed by single-plus blowing mode are larger than that of the dual-plus blowing modes.However,as the argon flow rate exceeds 240 L/min,the slag eye area becomes largest under the dual-plus with equal flow rate and smallest under the dual-plus with different flow rate mode.Additionally,the single-plus blowing mode generates the highest wall shear stress with a smaller stress area.Despite a significant reduction in shear stress under the dual-plus with equal flow rate mode,the area of stress distribution increases.In summary,the blowing mode of dual plus with different argon flow rates can not only enhance steel refining efficiency,but also reduce the flow-induced erosion of the refractory lining.
作者 秦绪锋 王凤良 程常桂 李阳 卫卫 金焱 QIN Xufeng;WANG Fengliang;CHENG Changgui;LI Yang;WEI Wei;JIN Yan(Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education,Wuhan University of Science and Technology,Wuhan 430081,China;Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking,Wuhan University of Science and Technology,Wuhan 430081,China;Wuxi Juli Heavy Industry Co.,Ltd.,Wuxi 214111,China)
出处 《武汉科技大学学报》 CAS 北大核心 2024年第1期1-10,共10页 Journal of Wuhan University of Science and Technology
基金 国家自然科学基金青年基金项目(52204351) 中国博士后科学基金面上项目(2022M722487) 武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室开放基金重点项目(FMRUlab23-05)。
关键词 钢包 底吹氩 吹氩流量 多相流流动 钢渣界面 壁面剪应力 数值模拟 ladle bottom argon blowing argon flow rate multiphase flow steel-slag interface wall shear stress numerical simulation
  • 相关文献

参考文献6

二级参考文献49

共引文献24

同被引文献16

引证文献1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部