摘要：本文研究了气流分级过程中的“鱼钓效应”,指出颗粒间团聚是产生“鱼钩效应”的一个重要的原因,并对原有的分级模型进行了修正,给出“鱼钩效应"的理论计算式。最后还根据实验结果分析了影响“鱼钓效应”的各种因素。

关键词：气流分级；鱼钩效应；分级效率；团聚

Abstract：The Fish-hook effect in air classifiers is stucdied in theis paper. It is found that agglomeration is the main origin of the fish- hook effect. Based on the former model of air classifying process, a revised model is given to simvlate the fish 一hook effect, and a theovretical formula is developed. Finally,it also analyses the factors which can affect the shape of the fish- hook.

Keywords:Aiv classifier ;Fish - hook effect ;Classification efficiency;Agglomeration