开放式多极磁选机磁场理论推导中存在的问题  

PROBLEMS EXISTED IN THEORETICALLY FINDING SOLUTION OF MAGNETIC FIELD IN MAGNETIC SEPARATORS WITH OPENING MULTIPOLAR MAGNETIC SYSTEM

作　　者：徐建民[1] 

机构地区：[1]北京矿冶研究总院,北京100044

出　　处：《矿冶》2002年第1期42-46,共5页Mining And Metallurgy

摘　　要：根据“数学物理方法”和“电动力学”里的成熟理论 ,具体分析了国内外一些磁选专著中 ,在对开放式多极磁选机的磁场进行理论推导时普遍存在的关键性错误 ,说明了这些理论推导不能为所谓的指数磁场公式H =H0 e-cx 提供任何理论依据。简要介绍了用保角变换法求解这类磁场得到的结果 ,指出用它计算出的具体数值结果与公式H =H0 e-cx 的结果有重要的不同。On the basis of ripe theory in Methods of Mathematical Physics and Dynamic Electricity,the critical problems concerning theoretically finding the solution of the magnetic field in the magnetic separators with opening multipolar system described in some magnetic separation monographs at home and abroad,was analyzed It was explained that these theoretical calculations was unable to provide any theoretical basis for H=H 0 e -cx ,so called formula of index magnetic field The solution result of using conformal transformation method for the magnetic field was mentioned simply It is pointed out that the concrete numerical value from it is significantly different from that calculated with formula H=H 0 e -cx 

关 键 词：多极磁选机 开放磁系 磁场计算 保角变换 磁选理论 

分 类 号：TD924.1+1[矿业工程—选矿] TD91