Abstract: The definitions of classifying efficiency and classifying precision generally used to express and evaluate performance of a turbo air classifier in application were analyzed. The structure of the classifier was combined to investigate the main factors influencing classifying efficiency and classifying precision of a turbo air classifier. The results show that all of the grading wheel speed， inlet velocity， feed rate， guide plate have effect on the classifying efficiency and classifying precision. Different parameters should be selected according to different materials.

Keywords: classifier; classifying efficiency; classifying precision

中图分类号：TQ051           文献标志码：A

文章编号：1008-5548（2014）04-0080-03

DOI:10.13732/j.issn.1008-5548.2014.04.018

收稿日期：2013-10-24， 修回日期：2013-11-18，在线出版时间：2014-08-28。

第一作者简介：龚翠平（1981—），女，工程师，主要从事超细粉体粉碎、分 级 、包装等设备的设计研发工作 。 电 话 ：024-86368380， E-mail：greenping601@sina.com。