RH精炼过程中气泡去除夹杂物的物理模拟  

Physical Simulation of Inclusion Removal by Bubble Attachment in RH Degasser

作　　者：杨春杰[1] 唐复平[2] 何涛[1] 于海龙[1] 

机构地区：[1]辽宁科技大学,辽宁鞍山114000 [2]鞍山钢铁集团公司,辽宁鞍山114000

出　　处：《铸造技术》2015年第7期1805-1808,共4页Foundry Technology

摘　　要：以1︰4的几何相似比建立了物理模型,模拟某炼钢厂180 t RH真空精炼炉。捕捉了气泡粘附夹杂物并上浮去除的过程,考察了处理时间、提升气体流量,以及Na HCO3的加入量和加入方式等因素对夹杂物去除率的影响,找到了各主要影响因素的最佳值。In order to simulate a real 180 t RH vacuum refining device a physical model was established with geometric similarity ratio of 1：4. Inclusion removal from molten steel by bubble attachment in RH degasser was analyzed using the physical model. The effects of variables such as treatment time, life-gas flow rate, amount and time of NaHCO3 addition on inclusions removal rate were investigated. And industrial running results validate the effectiveness of the presented model.

关 键 词：夹杂物 气泡 RH精炼 

分 类 号：TF769.4[冶金工程—钢铁冶金]