阴极炭块材料对铝电解槽电热场影响的研究  

Impact of Cathode Carbon Block Material on the Thermal-electric Field in Aluminum Reduction Cell

作　　者：张翮辉[1] 张红亮[1] 崔喜风[1] 徐宇杰[1] 杨帅[1] 

机构地区：[1]中南大学冶金科学与工程学院,湖南长沙410083

出　　处：《有色冶金设计与研究》2011年第2期13-15,共3页Nonferrous Metals Engineering & Research

基　　金：国家高技术发展研究计划(2008AA30504);国家自然科学基金项目(50874120)

摘　　要：阴极炭块材料的选取与铝电解槽的经济效益密切相关。以某180 kA级铝电解槽为例,采用有限元分析软件ANSYS建立电热场数学模型,分析比较了半石墨质、半石墨化和石墨化三种阴极炭块材料对电解槽电热场的影响。结果表明,上述三种情况下的阴极炭块欧姆压降分别为0.286 V、0.226 V和0.142 V,总散热量分别为333 kW、339 kW和346 kW,采用石墨化阴极炭块的节能效果最好,而半石墨化阴极炭块次之。The choice of cathode carbon block material is relevant to the economic benefit of aluminum reduction cell.In this paper,a mathematic model of 180 kA aluminum reduction cell was developed by finite-element analysis software ANSYS,and impact of semi-graphitic,semi-graphitized and graphitized carbon material on the thermal-electric field in the cell were compared.Calculation results show that the ohmic voltage drop of the cathode are 0.286 V,0.226 V and 0.142 V respectively,and the heat loss are 333 kW,339 kW and 346 kW respectively.So the best carbon material to save energy is graphitized carbon,and the second-best one is semi-graphitized carbon.

关 键 词：铝电解 电解槽 电热场 数值计算 ANSYS 

分 类 号：TF821[冶金工程—有色金属冶金] O411.3[理学—理论物理]