Cemented tungsten carbide balls (hereafter abbreviated as WC balls) are commonly applied in grinding of wasted tool steel for reuse owing to their extraordinary surface hardness (89.5 HRA) and high density (14.5 –14.9 g/cm³). In this study, grinding tests were conducted with WC balls on quartz ore to estimate comminution kinetics. Compared with steel balls, they provided high breakage rates, lower energy-specific breakage rates, and finer breakage distributions due to their high density. Simulations were conducted using an energy-based population balance model. The simulated results demonstrated that WC balls had higher throughput for coarse particles and lower energy efficiency for fine particles. Subsequently, a preliminary criterion for ball selection was established and indicated that WC balls could be substituted for steel balls to certain particle size ranges.

硬质合金碳化钨球（以下简称WC球）由于其非凡的表面硬度（89.5 HRA）和高密度（14.5 –14.9 g / cm ³）通常用于磨削废旧工具钢，以便重复使用。）。在这项研究中，用WC球对石英矿石进行了研磨测试，以估计粉碎动力学。与钢球相比，由于密度高，它们具有较高的破损率，较低的能量比破损率和较细的破损分布。使用基于能量的人口平衡模型进行了模拟。仿真结果表明，WC球的粗颗粒产量较高，而细颗粒的能量效率较低。随后，建立了选择球的初步标准，并指出在某些粒径范围内，可用WC球代替钢球。