齿尖磁极相对的磁场求解中几个问题的探讨  

Some Problems in Solving Method of Magnetic Field Between Dentiform poles

作　　者：徐建成[1] 徐建民[2] 

机构地区：[1]首都师范大学物理系,北京100037 [2]北京矿冶研究总院,北京100044

出　　处：《有色金属》2004年第1期80-82,共3页Nonferrous Metals

摘　　要：对文献报道的求解磁场过程中存在的3个问题进行探讨。指出了文献[2]许瓦兹-克利斯多菲变换把两个不同的顶 点换成一个的错误及相应计算磁场强度公式的不可靠。文献[3]给出的所有计算磁场强度的公式中未反映出2S的影响,因而缺 乏可靠性。文献[4]关于铁与空气分界面为磁等势面的假定,当磁场强度较高时与实际偏离较多,影响计算结果的准确性。Three problems on solving magnetic field between pointed dentiform poles in literatures are discussed. The unreliable formulae for calculating magnetic field intensity in literature 2 are queried, because the two different vertexes become to one vertex in their derivation operation with Schwarz-Christoffel transformation. The formulas for calculating magnetic field intensity given by literature 3 are unsatisfactory since the effect of the teeth pitch 2s is neglected. In literature 4, the calculation result is not absolutely correct for the high magnetic field intensity, because the supposition of the equal magnetic potential face for interface between the iron and atmosphere is not completely consonant with the practical situation.

关 键 词：选矿 齿形磁极 磁场计算 磁选 磁选机 

分 类 号：TD924[矿业工程—选矿] TD457