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一、前言根据磁性分级理论和贫磁铁矿的不均匀浸染特性,贫磁铁矿在粗磨后,就应抛出大量尾矿和选出部分粗粒精矿。细磨的应该是连生体部分,即是中矿再磨流程。目前,抛尾矿采用的永磁筒式磁选机要求磁场强度尽量高一些,已达到1600～2200奥斯特。选出粗粒精矿的磁选机,要求磁场强度为250～500奥斯特,我们称为低磁场磁选机,目前国内外还没有。本文对低磁场磁选机的磁场
I. INTRODUCTION According to the theory of magnetic classification and the uneven impregnation characteristics of lean magnetite, a large amount of tailings and some coarse-grained concentrates should be thrown out after the lean magnetite is coarsely ground. Fine grinding should be even with the body part, that is, mine grinding process. At present, the permanent magnet barrel magnetic separator used in throwing tailings requires that the magnetic field strength should be as high as possible and has reached 1600-2200 Oersteds. Select the coarse ore concentrator magnetic separator, requiring a magnetic field strength of 250 ~ 500 Oersted, we call the low magnetic separator, at home and abroad have not yet. This article on the low field magnetic separator magnetic field