In this paper, we present a method that allows for the quick and efficient simulation of the comminution process in high-speed rotor mills. The method requires only the feed’s macroscopic material data and the geometry of the machine. Consisting of two stages, the method couples Computational Fluid Dynamics (CFD) with the Discrete Element Method (DEM) to obtain the collisional velocities and angles of a representative group of particles passing through the machine. Due to this coupling, any mill which relies on fluid forces acting on the ore particles can be simulated. After obtaining these values, the second stage commences wherein a single ore particle consisting of DEM elements collides against a rigid surface. The data obtained from this stage is then used to determine the minimum required working parameters of the chosen machine to achieve proper ore comminution. The proposed methodology was applied to analyse the novel concept of using beater mills for the comminution of copper ore.

在本文中，我们提出了一种方法，该方法可以快速高效地模拟高速转子磨机中的粉碎过程。该方法仅需要进料的宏观材料数据和机器的几何形状。该方法由两个阶段组成，将计算流体力学（CFD）与离散元素方法（DEM）结合在一起，以获得通过机器的代表性颗粒组的碰撞速度和角度。由于这种耦合，可以模拟任何依靠作用在矿石颗粒上的流体力的磨机。获得这些值之后，第二阶段开始，其中由DEM元素组成的单个矿石颗粒与刚性表面碰撞。然后，将从该阶段获得的数据用于确定所选机器的最低要求工作参数，以实现适当的矿石粉碎。所提出的方法用于分析使用打浆机粉碎铜矿石的新概念。