贫化电炉气液混合顶吹的气泡群形态及搅拌效果  

Form of bubble group and stirring effect of top blowing with depleted furnace gas-liquid mixture

作　　者：王冲[1,2] 熊靓[1] 朱道飞[1] 王仕博[1] 王华[1] 徐建新[1] 刘泛涵 

机构地区：[1]昆明理工大学冶金与能源学院 [2]云南铜业股份有限公司

出　　处：《冶金能源》2014年第2期30-33,共4页Energy For Metallurgical Industry

基　　金："冶金过程顶吹搅拌反应器颗粒团聚时空深化特征研究";云南省基金项目(人培)。项目编号:KKSY201258156

摘　　要：针对贫化电炉还原油枪中气、油混合顶吹对渣层搅拌效果的研究,等比例制作贫化电炉水模型,进行气液混合喷吹实验。实验结果表明:顶吹气液两相混合射流在熔池中形成大小不一的气泡或气泡群,气泡本身的形变、破裂以及气泡间的团聚运动决定了油枪对熔池的搅拌效果。通过测量不同流量下气泡群尺寸的变化,分析气液流量混合比对熔池搅拌效果的影响。To study on the stirring effect of gas -oil mixed top blown from reduction oil gun in slag layer of depleted furnace , some gas-liquid mixing injection experiments were made in the water model proportioned by the depleted furnace .Experiment results show that size of bubble or bubble group formed by two-phase mixing top blowing jet were so different in the bath .The top blowing stirring effect was decided by deformation , rupture of the single bubbles and the reunion movement between adjacent bubbles .By measuring the change of the size of bubble group in different flow , the effect of gas-liquid flow mixing ratio can be analyzed to improve the stirring effect in bath .

关 键 词：贫化电炉 气液混合 气泡 搅拌效果 

分 类 号：TF729[冶金工程—钢铁冶金]