基于EDEM—FLUENT耦合矿物颗粒分离效果的模拟研究  

Simulation Study on Separation Effect of Mineral Particles Based on EDEM-FLUENT Coupling

作　　者：张凡 李玲玲[1] 马学东[1] Zhang Fan;Li Lingling;Ma Xuedong(College of Mechanical Engineering and Automation,Liaoning University of Science and Technology,Anshan,Liaoning,China)

机构地区：[1]辽宁科技大学机械工程与自动化学院,辽宁鞍山114051

出　　处：《矿产综合利用》2022年第6期159-166,共8页Multipurpose Utilization of Mineral Resources

基　　金：国家自然科学基金项目(51775258);辽宁省自然科学基金重点项目(20170540458);精密与特种加工教育部重点实验室基金(B201703)。

摘　　要：为了能同时依据矿粒的密度和粒度对其分离,尝试选用水平冲击水流和振动作用的联合分离工艺,采用EDEM-FLUENT耦合方法,以矿粒的回收率及分离产品含杂率为评价指标,对矿粒在分选装置中的分离行为进行模拟研究,并探讨不同工艺参数对矿粒分离效果的影响。结果表明:所选用的分离工艺可有效地依据矿粒的密度和粒径进行分离。添加振动筛能大幅度降低分离产品的含杂率。分选装置的较佳参数为:筛面倾角为0°、振动频率为10 Hz、振幅为3 mm、颗粒入口底部宽度为7 mm,此时回收率96.8%,含杂率5.67%。In order to separate different minerals at the same time according to density and grain size of mineral particles,the combined separation process of horizontal water flow and vibration and the coupling method of EDEM-FLUENT were used,mineral recovery and impurity rate used as the evaluation index.The separation behavior of mineral particles in the separation device was simulated,and the influence of different process parameters on the separation effect of mineral particles was discussed.The results show that the selected separation process can effectively separate mineral particles according to the density of mineral particles and size of mineral particles.The addition of vibrating screen can greatly reduce the impurity content of mineral particles in the separated products.The optimal parameters of the sorting device are:screen surface inclination Angle is 0°,vibration frequency is 10 Hz,amplitude is 3 mm,particle inlet bottom width is 7 mm.By this time recovery 96.8%and containing impurity rate 5.67%were obtained.

关 键 词：EDEM-FLUENT耦合 矿粒分离 回收率 含杂率 模拟研究 

分 类 号：TD981[矿业工程—选矿]