摘要
为减少动颚板的磨损量,提高颚式破碎机的使用寿命与生产率,对江西德兴铜矿矿石的接触模型Hertz-Mindlin(no slip)built-in的接触力进行了分析;通过9球填充的组合颗粒模型建立了铜矿石离散元模型,采用三维软件UG建立了颚式破碎机的离散元模型;利用EDEM软件仿真正交试验得出影响动颚板磨损量的顺序为啮角、肘板摆角和冲程,并求解出参数圆整优化后的结果:啮角为49°,肘板摆角为8°,冲程为59mm,此时动颚板磨损量为1.16mm;最后通过与试验结果对比,验证了离散元软件EDEM仿真分析动颚板磨损量的可行性。
In order to reduce the wear of moveable jaw and improve the service life and productivity of jaw crusher,the contact force of Hertz-Mindlin(no slip)built-in contact model for Dexing Copper ores was analyzed.Through the combined particle model filled with 9 balls,the discrete element model of copper ore was established,and the discrete element model of jaw crusher was built by three-dimensional software UG.The orthogonal experiment was simulated by EDEM software,and the influence order of the wear of moveable jaw was obtained as follows,engagement angle,elbow swing angle and stroke.The optimized result of parameter roundness was obtained.When the engagement angle is 49°,the elbow swing angle is 8°and the stroke is 59 mm,the wear of the moveable jaw is 1.16 mm.Finally,by comparing with the experimental results,the feasibility of analyzing the wear of moveable jaw by EDEM was verified.
作者
郭华军
戴搭银
GUO Huajun;DAI Dayin(CNOOC Petrochemical Engineering Co.,Ltd,Dezhou,Shandong 253004,China;Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring(Central South University),Ministry of Education Changsha,Hunan 410083,China;Jiangxi Key Laboratory of Mining Environment Monitoring and Control,Jiangxi University of Science and Technology,Ganzhou,Jiangxi 341000,China)
出处
《矿业研究与开发》
CAS
北大核心
2020年第7期130-134,共5页
Mining Research and Development
基金
国家重点研发计划项目(2018YFC0709301)。
关键词
颚式破碎机
离散元
动颚板磨损
Jaw crusher
Discrete element
Wear of moveable jaw
