Abstract
A simulation of the three-dimensional motion of grinding media in the stirred media mill for the research of grinding mechanism has been carried out by 3-dimensional discrete element method (DEM). The movement of ball assemblies was graphically displayed with some snapshots from start of the milling to 0.20 s. From these simulation results, the grinding zone in the mill was confirmed to be distributed into two regions, which is near the stirrer and the side wall of mill around the stirrer. The power changing the rotation speed of stirrer was examined based on the micro interactive forces at all the contact points between ball-to-ball and between ball-to-stirrer. DEM is a very powerful tool for the microanalysis of movement of balls, which could not have been solved by a conventional experimental method.
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References
A. Kwade, L. Blecher and J. Schwedes, Powder Technology, 86, 59 (1996).
W. S. Choi, J. Soc. Powder Technol., Japan, 33, 747 (1996).
W. S. Choi, The proceedings of 3rd World Congress on Particle Technology, Brighton (1998).
P. A. Cundall and O. D. L. Strack, Geotechnique, 29, 1 (1979).
S. Yuu and T. Umekage, Iron and Steel, 81, 11 (1995).
P. Radziszewski, Minerals Engineering, 12, 1501 (1999).
S. Agrawala, R. K. Rajamani, P. Songfack and B. K. Mishra, Minerals Engineering, 2, 215 (1997).
P. W. Cleary, Mineral Engineering, 11, 1061 (1998).
A. Datta, B. K. Mishra and R. K. Rajamani, Canadian Metallurgical Quarterly, 38, 133 (1999).
P. W. Cleary and D. Hoyer, Int. J. Miner. Process, 59, 131 (2000).
M. Gao and E. Forssberg, Powder Technol., 84, 101 (1995).
J. Kano, M. Miyazaki and F. Saito, Advanced Powder Technology, 11, 333 (2000).
S. S. Kim and W. S. Choi, Proceedings of 1st Asian Symposium on Powder Science and Technology, Bangkok (2000).
S. S. Kim and W. S. Choi, Proceedings of the 43rd Symposium on Powder Science and Technology, Busan (2005).
The Society of Powder Technology, Japan, Introduction of Powder Simulation, Sangyodoshyo, Osaka (1998).
H. S. Kim and W. S. Choi, Proceedings of the 8th APCChE Congress, Seoul (1999).
D.W. Fuerstenau and A. Z. M. Abouzeid, Int. J. Miner. Process, 67, 161 (2002).
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Kim, S., Choi, W.S. Analysis of ball movement for research of grinding mechanism of a stirred ball mill with 3D discrete element method. Korean J. Chem. Eng. 25, 585–592 (2008). https://doi.org/10.1007/s11814-008-0099-x
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DOI: https://doi.org/10.1007/s11814-008-0099-x