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http://dx.doi.org/10.3795/KSME-B.2017.41.3.211

Numerical Study on Flow Characteristics and Classification Performance of Circulating Air Classifier  

Yoon, Jong-Hwan (School of Mechanical Engineering, Daegu Univ.)
Cheong, Jun-Gyo (Hyundai Engineering & Construction Co. Ltd.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.41, no.3, 2017 , pp. 211-219 More about this Journal
Abstract
In this study, we performed numerical simulations on a circulating air classifier using a commercial computational fluid dynamics program. The variations in the grade efficiency, the cut-size and the cut-sharpness were calculated and discussed. By controlling the rotating speed of the main fan, the cut-size could be rapidly increased. However the linearity of the cut-size variation with respect to the main fan speed was not sufficient for application to contaminated soil classification processes. On the other hand, by varying the rotating speed of the classifying fan, the cut-size gradually decreased and could be precisely adjusted. Using both the main fan and the classifying fan, we could achieve larger cut-sharpness values and better classifying performances.
Keywords
Circulating Air Classifier; CFD; Main Fan; Classifying Fan; Stationary Guide Vanes; Cut-Size; Cut-Sharpness;
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Times Cited By KSCI : 1  (Citation Analysis)
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