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Fluid-particle energy transfer in spiral jet milling

Radjai, F., Dogbe, Selasi, Ghadiri, Mojtaba, Hassanpour, Ali, Hare, Colin, Wilson, David, Storey, Richard, Crosley, Iain, Nezamabadi, S., Luding, S. and Delenne, J.Y. (2017) Fluid-particle energy transfer in spiral jet milling In: Powders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media, 03-07 Jul 2017, Montpellier, France.

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Abstract

Spiral jet milling is a size reduction process driven by the fluid energy of high velocity gas jets. Inter-particle and particle-wall interactions are responsible for size reduction. The process is energy intensive, but inefficient. The underlying mechanisms for size reduction in the mill are also not very well understood. The optimum grinding conditions are still currently found by trial and error experimentation. In this work, the Discrete Element Method coupled with Computational Fluid Dynamics is used to investigate the effects of different parameters on the particle collisional behaviour in a spiral jet mill. These include the particle concentration in the grinding chamber, the particle size, and the fluid power input. We report on our work analysing the efficiency of energy transfer and how it can be improved by changing the milling conditions and particle properties.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Chemical and Process Engineering
Authors :
NameEmailORCID
Radjai, F.UNSPECIFIEDUNSPECIFIED
Dogbe, SelasiUNSPECIFIEDUNSPECIFIED
Ghadiri, MojtabaUNSPECIFIEDUNSPECIFIED
Hassanpour, AliUNSPECIFIEDUNSPECIFIED
Hare, Colinc.hare@surrey.ac.ukUNSPECIFIED
Wilson, DavidUNSPECIFIEDUNSPECIFIED
Storey, RichardUNSPECIFIEDUNSPECIFIED
Crosley, IainUNSPECIFIEDUNSPECIFIED
Nezamabadi, S.UNSPECIFIEDUNSPECIFIED
Luding, S.UNSPECIFIEDUNSPECIFIED
Delenne, J.Y.UNSPECIFIEDUNSPECIFIED
Date : 30 June 2017
Identification Number : 10.1051/epjconf/201714009040
Copyright Disclaimer : © The Authors, published by EDP Sciences, 2017. This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Depositing User : Clive Harris
Date Deposited : 23 Aug 2017 08:48
Last Modified : 23 Aug 2017 08:48
URI: http://epubs.surrey.ac.uk/id/eprint/841999

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