摘要
铝电解过程中电解槽通过强大直流电流产生的强磁场,在钢结构的电解铝车间中对天车的作用很大,影响天车的正常工作。利用ansoft软件对铝电解天车磁场分布进行有限元仿真,通过对有无建筑物对比,有建筑物时的磁场强度和工厂测试值较接近。证明了模型的合理性。分析了天车在不同状态受到磁场的作用不同,静止时天车受到磁场主要作用在端梁上,产生竖直向下的大小为290～430 kN的作用力,远大于天车运动时产生的电磁力,会导致天车启动困难;天车水平面合力为零,但内部受到磁场的作用力都在200 kN以上,会造成天车的扭曲变形。当天车运动时不仅在端梁上产生向下的250～300 kN作用力,同时天车整体会产生一个120～195 kN侧向力,导致天车朝导向轮一侧跑偏。
Aluminium reduction cell produces strong magnetic field by powerful DC current in the aluminum electrolysis process. The strong magnetic field has great effect on crane and affects the normal operation of the crane in electrolytic aluminum workshop of steel structure. Finite element simulation of crane magnetic field is distributed through ansoft software, by contrast with or without buildings, it is closed to factory testing value when magnetic field with buildings. That model is reasonable, The effects of magnetic field in different states were calculated, when the crane is static, magnetic field acts mainly on the end beam of crane, only making 290 - 430 kN vertical force. This force increases the stating difficulty of the crane. Horizontal force is zero, but internal force is more 200 kN, and causing crane will distortion. When the crane is moving, not only making the vertical 250 - 300 kN force, but having 120 - 195 kN lateral force and this force makes the crane deviate from the orbital motion.
出处
《金属材料与冶金工程》
CAS
2010年第5期22-26,共5页
Metal Materials and Metallurgy Engineering
关键词
铝电解天车
电磁场
电磁力
有限元分析
aluminium electrolysis crane
electromagnetic field
electromagnetic force
finite element analysis
