Scale-up method of planetary ball mill
Scale-up method of planetary ball mill
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DOI：
10.1016/j.ces.2004.07.020
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发表时间：
2004-12-01
影响因子：
4.7
通讯作者：
Saito, F
中科院分区：
文献类型：
--
作者：
Mio, H;Kano, J;Saito, F
本文的目的是通过基于离散元方法的计算模拟来研究行星球磨机的放大方法。首先，利用四种不同尺度的行星式磨机对三水铝石粉进行干法粉碎，将粉碎速度与计算模拟得到的球体比冲击功进行比较。磨矿速率与所有磨机的比冲能有很好的相关性，并且它们之间的关系是线性相关的。指出比冲击能对粉碎率的估算和操作条件的优化是非常有用的。其次，通过计算冲击功，建立了行星磨机的放大方法。冲击功分别与罐体直径、罐体深度和圆盘回转半径的平方成正比。当行星磨在几何相似程度上放大时，球的冲击能与放大比的4.87次方成正比。(C)2004爱思唯尔有限公司。保留所有权利。
The objective of this paper is to investigate the scale-up method of the planetary ball mill by the computational simulation based on Discrete Element Method. Firstly, the dry grinding of a gibbsite powder by using four different scales of planetary mill was developed to compare the grinding rate with the specific impact energy of balls calculated from computational simulation. The grinding rate is well correlated with the specific impact energy in all mills; and its relationship is expressed by a linear correlation. It points out that the specific impact energy is very useful for estimation of the grinding rate and optimization for the operational conditions. Secondly, the scale-up method for the planetary mill was established by evaluating the impact energy. The impact energy is proportional to the cube of the diameter of the pot, the depth of the pot and the revolution radius of the disk, respectively. When the planetary mill is scaled-up in geometrical similarity, the impact energy of the balls is proportional to 4.87 power of the scale-up ratio. (C) 2004 Elsevier Ltd. All rights reserved.