The mixing performance of a multi-bladed tote blender is investigated using a graphics processing unit-based discrete element method program. The positioning, dimensions, and applicability of the baffles are systematically studied according to the axial mixing efficiency. The results indicate that the novel inclined multi-bladed baffles can break the symmetrical axial granular flow and introduce a more efficient convective flow into the granular mixing in the axial direction of the tote blender. Owing to the joint effects of convective mixing and asymmetrical granular flow, the axial mixing efficiency is increased by a factor of nearly 20. More importantly, the novel baffle placement approach exhibits excellent applicability to different operating conditions, particle shapes, and blender sizes. Additionally, the inclined baffles can prevent the segregation caused by shape discrepancies and improve the mixing homogeneity in the steady state. The novel baffle design is promising for applications in more complex industrial blenders for achieving a high axial mixing efficiency.

使用基于图形处理单元的离散元素方法程序研究了多叶片手提式搅拌机的混合性能。根据轴向混合效率，系统地研究了挡板的位置，尺寸和适用性。结果表明，新型的倾斜多叶片挡板可以打破对称的轴向颗粒流动，并在手提式搅拌机的轴向上将更有效的对流引入颗粒混合。由于对流混合和不对称颗粒流的共同作用，轴向混合效率提高了近20倍。更重要的是，新型挡板放置方法对不同的操作条件，颗粒形状和搅拌器尺寸均具有出色的适用性。另外，倾斜的挡板可以防止形状差异引起的偏析，并在稳态下改善混合均匀性。新颖的挡板设计有望用于更复杂的工业搅拌机，以实现高轴向混合效率。