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Preliminary Experimental Analysis of a Spiral Jet Mill Performance
Author(s) -
Katz Avi,
Kalman Haim
Publication year - 2007
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.200601114
Subject(s) - nozzle , mill , spiral (railway) , grinding , mechanics , volumetric flow rate , materials science , mass flow rate , mechanical engineering , parametric statistics , roller mill , jet (fluid) , process engineering , composite material , environmental science , engineering , mathematics , physics , statistics
Jet mills are common devices used in industry for the fine milling of dry particulate materials. The size reduction is caused by repeated impaction events between particles. Although many parameters affect the performance of a jet‐mill, only a few of them have been investigated by researchers to date. Furthermore, the published investigations test only a few materials. In order to bridge the knowledge gaps which exist, a new experimental apparatus was designed and constructed to enable experiments involving as many influencing parameters as possible. The new apparatus enables changing of the material feeding, mass flow rate, air flow rate, nozzle parameters (velocity, diameter, angle, number and shape), grinding chamber height and the classifier orientation. In this paper, preliminary experimental results concerning a number of the aforementioned parameters and their effect on the mill performance are presented.