摘要：为研究半自磨机衬板结构参数对磨矿性能的影响, 对半自磨机内部各区域的载荷颗粒进行动力学分析, 建立基于衬板参数的半自磨机有用功率数学模型, 分析衬板的数量、高度、宽度对破碎性能的影响规律;利用离散元软件EDEM和二次开发对半自磨机磨矿过程进行数值模拟, 分析衬板结构参数对粘结颗粒 (物料) 断裂键数量的影响, 并通过实验进一步验证了半自磨机有用功率的可靠性及最佳衬板结构参数的准确性。结果表明, 当半自磨机衬板数量为32, 高度为17 mm, 宽度为20 mm时, 磨矿性能最佳, 与模型的分析结论相符。

关键词：半自磨机；衬板结构；磨矿性能；数值模拟

Abstract：In order to study the influence of structural parameters of semi-autogenous mill liner on grinding performance, the dynamic analysis of load particles in each region of semiautogenous mill was carried out. The mathematical model of the useful power of semi-autogenous mill based on the parameters of liner was established, and the influence of number, height and width of the liner on crushing performance was analyzed. The numerical simulation of grinding process of semi-autogenous mill was carried out using discrete element software EDEM and its two development. The influence of structural parameters of liner on the number of broken bond of bonded particle (material) was analyzed. The results show that the grinding performance is the best when the number of liner is 32, the height is 17 mm and the width is 20 mm, which is consistent with the analysis conclusion of the mode. The reliability of useful power of the semi-autogenous mill and the accuracy of the optimum liner structure parameters are further verified by experiments

Keywords：semi-autogenous mill；lining structure；grinding performance；numerical simulation