稀土电解槽阳极壁面上倾对气泡逸出过程的影响研究  

Study on Effect of Anode Wall Upward Slope on Bubble Escape in RE Electrolyzer

作　　者：伍永福[1] 赵万增[2] 徐子谦[2] 刘中兴[1] 韩文帅[1] 

机构地区：[1]内蒙古科技大学能源与环境学院,内蒙古包头014010 [2]内蒙古科技大学材料与冶金学院,内蒙古包头014010

出　　处：《稀有金属与硬质合金》2016年第4期20-24,47,共6页Rare Metals and Cemented Carbides

基　　金：国家自然科学基金项目--稀土熔盐电解过程气泡形成与运动研究(51164025);内蒙古自然科学基金项目(2011MS0703)

摘　　要：为研究稀土电解后期阳极壁面向上倾斜对气泡逸出过程的影响,以3kA钕电解槽为研究对象、相似理论为基础,建立了电解过程的水模型物理实验平台,随后采用水模型实验法研究不同壁面上倾角度下气泡形状、直径、接触面积、滑移距离等参数随时间变化情况,上倾角度选取3°、5°、7°、10°和20°。结果显示,当壁面上倾角度过大时,气泡脱离时间延长,气泡成串脱离的现象消失,同时发生阳极效应,使电流效率降低,生产成本增加。为了与实际电解过程相符合,阳极壁面上倾角度不宜过大,以3°为佳。Water model physical experiment platform for electrolysis process of 3 kA neodymium electroly- zer was established based on the similarity theory to study influence of anode wall upward slopes on bubble escape in final electrolyzation stage. The time-varying parameters such as bubble shape, diameter, contact area and sliding distance were studied by water model experiment on the wall with different upward slope angles of 3°,5°,7°,10° and 20°. The results show that when wall upward slope angle is too large,the time of bubble escape increases, bubble clusters disappear, and meanwhile anode effect occurs to reduce current efficiency and increase production costs. In accordance with the actual electrolysis process,anode wall upward slope angle should not be too large,and 3° is the best option.

关 键 词：稀土电解槽 阳极 壁面上倾角度 气泡逸出 水模型 

分 类 号：TF845[冶金工程—有色金属冶金]