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辊式磁选机对中强磁性矿物分选多为经验式分选,不同磁系磁场特性与对应磁选矿物基本物性(密度、比磁化率)间的相互关系并无探讨。基于MagNet软件模拟辊式磁选机单环磁系、四级拼接磁系(无轭铁)、八级拼接磁系(有/无轭铁)的磁力线及磁感应强度分布情况,得出各磁系磁场沿辊表周向变化趋势及磁感应强度随分选行程变化函数关系;考察了单元磁性颗粒在力平衡条件下其密度同比磁化率的比值与各磁系磁感应强度函数关系,综合分析得出不同磁系类型下矿物的分选标准。对辊式磁选机常用磁系磁场特性分析,为选择合适的辊式磁选机进行中强磁性矿物的高效分选提供基础理论指导。
Roller magnetic separator on the selection of strong magnetic minerals are mostly experiential separation, the magnetic properties of different magnetic systems and the corresponding magnetic separation of the basic physical properties (density, specific susceptibility) of the relationship between no discussion. Based on the magnetic field lines and the magnetic flux density distribution of the single ring magnetic system, the splicing system of four-stage splicing (no yoke) and the splicing system of eight splicing (with / without yoke) by MagNet software, Magnetic field along the roller table changes in the circumferential direction of the trend and the magnetic flux density with the selection of the stroke change function; investigated the unit magnetic particles in the balance of magnetic density ratio of the magnetic susceptibility ratio and the relationship between the magnetic induction of a comprehensive analysis of different magnetic Department of the type of mineral sorting criteria. Analysis of magnetic characteristics of the magnetic field of the roller magnetic separator, to provide a basic theoretical guidance for the selection of a suitable roller magnetic separator for the efficient separation of medium-strength magnetic minerals.