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A discrete elements simulation and analysis of a high energystirred milling process

Published online by Cambridge University Press:  22 November 2012

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Abstract

Stirred bead mills used in industry allow to split up particules in suspension byagitating a milling medium. The multiple impacts may damage beads and thus reduce thestirred milling process efficiency. A discrete numerical approach including simple fluideffects is proposed and carried out in this paper to model and study finely the damagephenomenon. The simulation data allow to identify internal variables of the milling mediumand to localize high energy zones. The order of magnitude of contact forces includingfluid contribution will enhance the bead wear law.

Type
Research Article
Copyright
© AFM, EDP Sciences 2012

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References

H.-H. Stender, A. Kwade, J. Schwedes, New results of grinding media wear analysis in stirres media mills under changing operation conditions, PARTEC, Nuremberg, 2001
Berthiaux, H., Heitzmann, D., Dodds, J.A., Validation of a model of a stirred bead mill by comparing results obtained in batch and continuous mode grinding, Int. J. Miner. Process. 44-45 (1996) 653661 CrossRefGoogle Scholar
Blecher, L., Schwedes, J., Energy distribution and particle trajectories in a grinding chamber of a stirred ball mill, Int. J. Miner. Process. 44-45 (1996) 617627 CrossRefGoogle Scholar
R. Gers, E. Climent, D. Legendre, D. Anne-Archard, C. Frances, Numerical approach of grinding process in a stirred media mill, PARTEC, Nuremberg, 2007
Stender, H.-H., Kwade, A., Schwedes, J., Stress energy distribution in different stirred media mill geometries, Int. J. Miner. Process. 74S (2004) 103117 CrossRefGoogle Scholar
Cook, B.K., Noble, D.R., Williams, J.R., A direct simulation method for particle-fluid system, Eng. Comput. 21 (2004) 151168 CrossRefGoogle Scholar
Schmeeckle, M.W., Nelson, J.M., Direct numerical simulation of bedload transport using a local, dynamic boundary condition, Sedimentology 50 (2003) 279301 CrossRefGoogle Scholar
Jean, M., The non smooth contact dynamics method, Comp. Meth. App. Mech. Eng. 177S (1999) 235257 CrossRefGoogle Scholar
Moreau, J.-J., Some numerical methods in multibody dynamics : application to granular material, Eur. J. Mech. A Solids 13 (1994) 93114 Google Scholar
Jayasundara, C.T., Yang, R.Y., Yu, A.B., Discrete particle simulation of particle flow in a stirred mill : effect of mill properties and geometry, Indus. Eng. Chem. Res. 51 (2012) 10551066 CrossRefGoogle Scholar
Laniel, R., Alart, P., Pagano, S., Discrete element investigations of wire-reinforced geomaterial in a three-dimensional modeling, Comput. Mech. 42 (2008) 6776 CrossRefGoogle Scholar