摘要
针对常用数学模型和目前离散元仿真模型在预测高压辊磨机处理量、单位能耗和破碎比等方面误差较大的问题,提出采用离散单元法(DEM)和多体动力学(MBD)联合仿真技术对高压辊磨机进行仿真建模分析。以山东黄金矿业(莱州)有限公司三山岛金矿正在使用的KHD375ϕ1400-1000型高压辊磨机为研究对象,根据相关理论和实际设备运行参数进行关键仿真参数设定,利用EDEM和MotionView进行联合仿真,并将仿真结果与数学模型、单一EDEM仿真模型和矿山实际运行数据进行对比。结果表明:DEM-MBD联合仿真模型能够更真实、更准确地模拟高压辊磨机的运行状态,在高压辊磨机预测性能指标上有更好的效果,DEM-MBD联合仿真模型比DEM仿真模型在处理量、单位能耗、破碎比上的误差值分别减小了13.41、38.10、6.74个百分点,有效降低了现有仿真模型的误差值。该研究也为此类复杂破碎设备的仿真提供了合理参考,具有一定的工程应用价值。
Aiming at the problems of the commonly used mathematical models and the current discrete element simula-tion models in predicting the processing capacity,unit energy consumption and crushing ratio of high-pressure grinding rolls(HGPR)with large errors,this paper proposes the simulation modeling analysis of HGPR using the co-simulation technology of discrete element method(DEM)and multi-body dynamics(MBD).Taking the KHD375ϕ1400-1000 HGPR used in Sans-handao Gold Mine,Shandong Gold Mining(Laizhou)Co.,Ltd.,as the research object,the key simulation parameters are set according to the relevant theory and actual equipment operation parameters,and the co-simulation is carried out by EDEM and MotionView.The simulation results are compared with the mathematical model,single EDEM simulation model and the actual operation data of the mine.The results showed that the DEM-MBD co-simulation model can simulate the operation of the HGPR more realistically and accurately.Compared with the DEM simulation model,the DEM-MBD co-simulation model reduces the error values of processing capacity,unit energy consumption and crushing ratio by 13.41,38.10 and 6.74 percentage points re-spectively,which effectively reduces the error values of the existing simulation model.The study also provides a reasonable ref-erence for the simulation of such complex crushing equipment,which has some engineering application value.
作者
任云鹏
李安帅
李旭东
宋芳
REN Yunpeng;LI Anshuai;LI Xudong;SONG Fang(School of Mechanical Engineering,Shenyang Jianzhu University,Shenyang 110168,China;Sanshandao Gold Mine,Shandong Gold Mining(Laizhou)Co.,Ltd.,Laizhou 261442,China)
出处
《金属矿山》
CAS
北大核心
2023年第9期164-172,共9页
Metal Mine
基金
东北大学航空动力装备振动及控制教育部重点实验室研究基金资助项目(编号:VCAME202102)。
关键词
高压辊磨机
离散单元法
多体动力学
联合仿真
模型对比
high-pressure grinding rolls
discrete element method
multi-body dynamics
co-simulation
model comparison
