摘要：利用流化床对撞式气流磨对中药三七进行超细粉碎 ,然后分析粉体颗粒的微观形貌、粒度分布及表面积 ,结果表明 ;粉碎效果良好 ,达到了超细粉碎的目的 ,且粒度分布比较均匀

关键词：三七;超细粉碎;颗粒表征;

Abstract：Using micro－fluidized bed opposed jet mill，pseudo － ginseng is superfinely pulverized．T hrough powder characterization of micro－appearance、particle distribution、outer area of pseudo－ginseng，the results indicate that its pulverization effect is excellent，and its powder is well－distributed．Based on this，study on superfine pulverization of Chinese herbs is go on． 

Key words：pseudo－ginseng；superfine；pulverization；powder characterization