摘要：采用 2 种直径分别为 0.4~0.6、0.8~1.0 mm 的氧化锆球，研究研磨 介质大小对湿法研磨过程中氧化锌粒径的影响， 并利用粉磨动力学模 型分析研磨过程中的破碎机理。 结果表明，采用直径为 0.4~0.6 mm 的 研磨介质研磨 30 min 时，氧化锌粒径可达到最小，即 d₅₀ 为 0.9 μm，d₉₀为 2.41 μm；研磨介质直径为0.4~0.6 mm 时的破碎速率明显大于直径为 0.8~1.0 mm 时的破碎速率，且破碎颗粒分布在较小的粒径范围内；在研 磨过程中冲击破碎和摩擦破碎同时存在， 研磨介质直径为 0.4~0.6 mm 时摩擦破碎的比例大于直径为 0.8~1.0 mm 时的比例。 

关键词：氧化锌；研磨介质；粉磨动力学

Abstract：To investigate the effect of grinding media diameter on zinc oxide particle size in stirred mill， grinding media with diameters from 0.4 to 0.6 mm and 0.8 to 1.0 mm were selected. Breakage mechanisms were analyzed using grinding kinetics model. The results show that grinding with media diameters from 0.4 to 0.6 mm for 30 min， the minimum particle size of zinc oxide can be achieved， i.e. d₅₀ is 0.9 μm and d₉₀ is 2.41 μm. The breakage rate of zinc oxide particles grinded with media diameters from 0.4 to 0.6 mm is obviously greater than that of 0.8 to 1.0 mm. The breakage products distribute in small diameter size range. The abrasion and fracture coexist during the grinding process. Using media diameters from 0.4 to 0.6 mm， the breakage proportion caused by abrasion is greater than using those of 0.8 to 1.0 mm. 

Keywords： zinc oxide； grinding media； grinding kinetics