powder classification

Particle classification is usually used to obtain qualified powder product after mill process. Modern industry demand more and more for fine particle size and narrow size distribution.

在微细粒级粉体加工技术中，颗粒分级是得到合格粒度产品的关键步骤，现代工业对细粒度、窄级别提出了越来越高的要求。

Through analyzing the performance parameters of superfine powder wormgear classifier, the velocity distribution of gas stream flowing in the classifier was built up, and the particle diameter formula for wormgear classification was derived.

研究了超微粉涡轮分级机性能分析的数学模型，建立了涡轮分级流场速度分布模型，推导了涡轮分级颗粒粒径公式。

The flow field characteristics of B type bottom plate are favorable to the classification of powder.

B型底盘条件下流场速度分布对分级过程有利.

The turbo air classifier is a very important powder classification device.

涡流空气分级机是一种重要的粉体分级设备.