钛渣连续熔炼渣铁界层凝固机理及控制探讨  

Discussion on Freezing Mechanism and Control Measurements about the Interface Layer between Slag and Iron Bath during Titanium Slag Continue Smelting

作　　者：吕延昆[1] 文建华[1] 邹捷[1] 杨春旺[1] 刘平[1] 刘建良[1] 

机构地区：[1]云南新立有色金属有限公司,云南昆明650091

出　　处：《钛工业进展》2012年第6期32-35,共4页Titanium Industry Progress

基　　金：国家科技部国际合作项目资助(2007DFA71490)

摘　　要：探讨了高功率全密闭直流电炉连续熔炼钛渣过程中渣铁界层的凝固机理及控制措施。分析表明,渣铁界层钛渣中夹杂有少量金属铁,且越接近界面铁量越大,渣铁温差、界层钛渣TiO2还原程度较高等是造成界层易于凝固的重要原因;通过调整渣层厚度、熔炼温度、还原程度等可对凝固范围进行有效控制。The freezing mechanism and control measurements about the interface layer between slag and iron bath dur- ing titanium slag continue smelting with high power totally-enclosed DC furnace have been discussed. Analysis shows that a few iron drops mix with the titanium slag at the interface layer, and the nearer to the surface the more. Due to the temperature difference between titanium slag and iron, as well as the deeper reduction of TiO2 , titanium slag at the interface layer freezes easily. So the freezing range can be effectively controlled by adjusting the thickness of titanium slag layer, smelting temperature and reduction degree.

关 键 词：钛渣 连续熔炼 渣铁界层 熔体凝固 

分 类 号：TF823[冶金工程—有色金属冶金]