为了获得所需任意形状和不同尺寸的颗粒，采用圆盘磨进行研磨可以实现。本文采用Oribin砂作为颗粒样。将一定量的试样加入磨中，根据要制备的颗粒形状调整研磨时间。将各种粒级的颗粒进行lh的筛分分离。颗粒形状通过将颗粒轮廊坐标扩展为付立叶级数进行表征。形状指数被定义为 In order to obtain the desired shape and size of the particles, disc grinding can be achieved. In this paper, Oribin sand as a particle sample. A certain amount of sample is added to the mill, and the grinding time is adjusted according to the shape of the particles to be prepared. Various particle size of the particles were lh sieve separation. Particle shapes are characterized by expanding the particle wheel center coordinates to the Fourier series. Shape index is defined as