立磨内刚-散耦合动力学过程仿真分析  

Simulation and analysis on rigid-granular coupling dynamic process in vertical mill

作　　者：侯志强[1] 侯书军[2] 

机构地区：[1]徐工集团江苏徐州工程机械研究院,江苏徐州221004 [2]河北工业大学机械工程学院,天津300130

出　　处：《矿山机械》2015年第8期81-84,共4页Mining & Processing Equipment

摘　　要：为了研究散体物料的粉碎机理,利用离散元法建立立磨物料粉碎系统的刚-散耦合仿真模型,通过仿真分析得到了散体物料在磨辊与磨盘共同挤压作用下的运动规律,以及散体物料对于磨辊的反作用力分布规律,揭示了宏观机械系统与微、细观散体物料系统间双向耦合机理,可为立磨内经常发生的大振幅非稳态振动的抑制提供参考。In order to research the comminution mechanism of bulk material, DEM （discrete element method） was applied to build rigid-granular coupling simulation model of material comminution system in vertical mill. After simulation and analysis, the motion laws of bulk material under mutual extrusion of roller and disc were obtained, and the distribution laws of reaction force of bulk material onto the roller were achieved. In addition, bidirectional coupling mechanism between macroscopical mechanical system and microcosmic bulk material was revealed, which offered reference for the suppression of unsteady large-amplitude vibration in the vertical mill.

关 键 词：立磨 刚-散耦合系统 非稳态振动 离散元 

分 类 号：TQ029[化学工程]