侧底复吹RH真空精炼中均混特性的物理模型研究  

Physical Simulation for the Mixing Properties in Side-bottom Blowing RH Vacuum Refining Process

作　　者：刘政稳[1] 李晨光[1] 韩继标[1] 雷洪[1] 

机构地区：[1]东北大学材料电磁过程研究教育部重点实验室,辽宁沈阳110004

出　　处：《工业加热》2014年第5期36-39,共4页Industrial Heating

基　　金：辽宁省百千万人才工程培养经费(2013921073);钢铁冶金新技术国家重点实验室开放课题(KFB-10)

摘　　要：基于相似原理,建立了几何相似比为1:5的水模型,对RH精炼过程钢液循环流动行为进行研究。考察了提升气体流量、真空度、不同吹气方式以及不同形状的浸渍管对混匀时间的影响规律。结果表明:均混时间随吹气量增大先减小后增大,随真空度增大而减小。在相同吹气流量下,单独采用侧底复吹方式或单独采用椭圆形浸渍管,均混时间减小。Based on the similarity principle, a water modeling with the scale of 1：5 was developed to study the mixing property during RH vacuum refining. The effects of lifting gas flow rate, vacuum degree, blowing mode and snorkel form on mixing time in RH degasser have been studied. The results show that the mixing time first decreases then increases with the increasing lifting gas flow rate and decreases with the increasing vacuum degree. On the condition of same lifting gas flow rate, the mixing time in traditional RH degasser is larger than in RH degasser with side-bottom blowing or ellipse snorkels.

关 键 词：RH精炼 均混时间 真空度 浸渍管 物理模拟 

分 类 号：TG232.6[金属学及工艺—铸造]