基于FEM、CFD 和DEM 耦合的三产品磁选柱磁选
过程模拟

金属矿山 ›› 2024, Vol. 53 ›› Issue (2): 225-.

基于FEM、CFD 和DEM 耦合的三产品磁选柱磁选过程模拟

吴俊杰¹　岳　翔¹　郭小飞¹　代淑娟¹　张洺睿²　任伟杰³

1. 辽宁科技大学矿业工程学院,辽宁鞍山 114051;2. 抚顺罕王傲牛矿业股份有限公司,辽宁抚顺 113000; 3. 北京建工资源循环利用有限公司,北京 100080

出版日期:2024-02-15 发布日期:2024-04-03
基金资助:
辽宁省“兴辽英才计划”项目(编号:XLYC20020208);辽宁省教育厅项目(编号:JYT2D2023097);辽宁省教育厅服务地方项目(编号: 2020FWDF12)。

Simulation of Three Product Magnetic Separation Column Process Simulation Based on FEM,CFD and DEM Coupling

WU Junjie¹　YUE Xiang¹　GUO Xiaofei¹　DAI Shujuan¹　ZHANG Mingrui²　REN Weijie³

1. School of Mining Engineering,University of Science and Technology Liaoning,Anshan 114051,China; 2. Fushun Hanwang Aoniu Mining Co. ,Ltd. ,Fushun 113000,China;3. BCEG Resources Recycling Co. ,Ltd. ,Beijing 100080,China

Online:2024-02-15 Published:2024-04-03

摘要/Abstract

摘要： 为探明磁铁矿颗粒在三产品磁选柱中的运动规律和影响因素,采用FEM、CFD 和DEM 耦合的方法对其磁选过程进行模拟,并通过实际分选试验进行验证。基于磁铁矿粒度分布、矿物组成、磁化特性和力学特性,建立了磁铁矿重叠球体颗粒模型,采用ANSYS 有限元软件模拟三产品磁选柱的磁场分布,采用Fluent 软件模拟三产品磁选柱的流场分布,采用EDEM-API 技术在离散元软件EDEM 中实现矿石颗粒、磁场和流场的耦合,模拟三产品磁选柱的磁感应强度、励磁周期以及上升水流速对分选过程的影响。在给矿TFe 品位为61. 42%的情况下,模拟试验得到的精矿、中矿和尾矿的TFe 品位分别为63. 60%、58. 44%和29. 63%。采用ϕ159 型三产品磁选柱在与模拟条件相同的情况下进行分选试验。结果表明,精矿、中矿和尾矿的TFe 品位分别为65. 55%、42. 58%和24. 23%,模拟试验与实际试验的相对误差在3%以内。

关键词: 三产品磁选柱　磁铁矿颗粒模型　动态磁场　流场　单向耦合

Abstract: In order to find out the movement law and influencing factors of magnetite particles in the three-product magnetic separation column,the magnetic separation process was simulated by FEM,CFD and DEM coupling method,and verified by the actual separation test. Based on the particle size distribution,mineral composition,magnetization characteristics and mechanical properties of magnetite,the overlapping sphere particle model of magnetite was established. ANSYS software was used to simulate the magnetic field distribution of three-product magnetic separation column. Fluent software was used to simulate the flow field distribution of the three-product magnetic separation column. EDEM-API was used to realize the coupling of ore particles,pulsating magnetic field and flow field in the discrete element software EDEM. The effects of magnetic induction intensity, excitation period and rising water flow rate of the three-product magnetic separation column on the separation process were simulated. When the TFe grade of the ore is 61. 42%,the TFe grades of the concentrate,the middle ore and the tailings obtained by the simulation test are 63. 60%,58. 44% and 29. 63%,respectively. The separation test was carried out by using ϕ159 three-product magnetic separation column under the same simulation conditions. The results show that the TFe grade of concentrate,middle ore and tailings is 65. 55%,42. 58% and 24. 23% respectively,and the relative error between the simulation test and the actual test is less than 3%.

Key words: three-product magnetic separation column,magnetite particle model,dynamic magnetic field,flow field,oneway coupling

吴俊杰, 岳　翔, 郭小飞, 代淑娟, 张洺睿, 任伟杰. 基于FEM、CFD 和DEM 耦合的三产品磁选柱磁选过程模拟[J]. 金属矿山, 2024, 53(2): 225-.

WU Junjie, YUE Xiang, GUO Xiaofei, DAI Shujuan, ZHANG Mingrui, REN Weijie. Simulation of Three Product Magnetic Separation Column Process Simulation Based on FEM,CFD and DEM Coupling[J]. Metal Mine, 2024, 53(2): 225-.

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