摘要：论述了超细粉射流分级机工业样机的研制及结构与工作原理 ,通过大量的试验与理论研究 ,证明了利用射流的附壁效应进行微米级粉体干式分级的可行性与可靠性。

关键词：超细粉体;射流;分级;

Abstract：T he developing process of industrial fluidic classifier for superfine powder and its structure and principle of operation are elaborated in this paper．A gerat deal of experiments and theory study are proved the practicability and reliability of dry classification for superfine powder by using coanda effectiveness． 

Key words：superfine powder；fluidics；classification