涡流空气分级机“鱼钩效应”的实验研究  

Experimental study on the “fish-hook effect” in a turbo air classifier

作　　者：张宇[1] 刘家祥[1] 

机构地区：[1]北京化工大学可控化学反应科学与技术基础教育部重点实验室,北京100029

出　　处：《北京化工大学学报（自然科学版）》2004年第3期51-54,58,共5页Journal of Beijing University of Chemical Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目 (5 0 1 74 0 4 3) ;上海宝钢集团公司资助 (5 0 374 0 0 4 )

摘　　要：文中研究了涡流空气分级机分级过程中由于颗粒细化而导致在Tromp曲线上产生“鱼钩效应” ,导致分级效率降低。根据实验分析了在涡流空气分级机分级中 ,分级转笼转速、进口风速、给料固体浓度以及给料粒度对“鱼钩效应”的影响。对减弱粉体分级过程中的“鱼钩效应”、涡流空气分级机的操作 。The “fish hook effect” in a turbo air classifier was studied experimentally. In terms of the experimental results, the factors influencing the “fish hook effect” during the process of classification, such as the rotating speeds of the rotor, velocity of air inlet, feeding rate and the dimension of the particles of raw material were analyzed. These analyses are of great values to the study and solving of “fish hook effect”, and give a direction to the operation of a turbo air classifier and the production of powders.

关 键 词：涡流空气分级机 鱼钩效应 分级效率 部分分级效率 

分 类 号：TQ051.84[化学工程]