Abstract
This paper shows how the efficiencies of size-reduction processes depend on the mode of particle constraint and energy transfer within the comminution device: namely, whether the process consists of single-particle loading, confined-particle-bed comminution or loose- (unconstrained-) particle grinding. The relative efficiency of single-particle comminution, ball mill grinding and particle-bed comminution in the recently invented high-pressure roll mill is evaluated by making use of the self-preserving nature of the size distributions of comminuted products. The highest energy efficiency can be achieved by utilizing a hybrid two-stage system in which the material is first ground in the high-pressure roll mill and then the ball mill.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
De, A., 1995, Ph.D. Dissertation, University of California, Berkeley, 134 pp.
Fuerstenau, D.W., and Kapur, P.C., 1994, Minerals and Metallurgical Processing, 11, p. 210.
Fuerstenau, D.W., and Kapur, P.C., 1995, Powder Technology, 82, p. 51.
Fuerstenau, D.W., De, A., Diao, J., and Kapur, P.C., 1995, High Efficiency Coal Preparation: An International Symposium, S.K. Kawatra, ed., SME, Littleton, CO, p. 295.
Fuerstenau, D.W., Gutsche, O. and Kapur, P.C., 1994, 8th European Comminution Symposium (Stockholm), Preprints, p. 608.
Fuerstenau, D.W., Kapur, P.C., and Gutsche, O., 1993, XVIII International Mineral Processing Congress, Sydney, p. 175.
Fuerstenau, D.W., Kapur, P.C., Schoenert, K., and Marktscheffel, M., 1990, Intl. J. Mineral Processing, 28, p. 109.
Fuerstenau, D.W., Shukla, A., and Kapur, P.C., 1991, Intl. J. Mineral Processing, 32, p. 59.
Kapur, P.C., 1987, 1987, “Modeling of tumbling mill batch processes,” Crushing and Grinding Process Handbook, C.L. Prasher, ed., John Wiley and Sons, pp. 323–363.
Kapur, P.C., Gutsche, O., and Fuerstenau, D.W., 1993, Powder Technology, 76, p. 271.
National Materials Advisory Board, 1981, “Comminution and Energy Consumption,” Publication NMAB-364, National Academy Press, Washington, D.C., 283 pp.
Papachristodoulou, G., and Trass, O., 1987 Canadian J. Chemical Engineering, 65, p. 177.
Rogers, R.S.C., and Austin, L.G., 1989, “Coal size reduction,” Sample Selection, Aging and Reactivity of Coal, R. Klein and R. Welleck, eds., John Wiley, New York, p. 103.
Rumpf, H., 1973, Powder Technology, 7, p. 145.
Schoenert, K., 1979, Zement-Kalk-Gips Int., 32, p. 1.
Schoenert, K., 1988, Powder Technology, 22, p. 401.
Schoenert, K., and Mueller, F., 1990, Zement-Kalk-Gips, 2, p. 65.
Stairmand, C.J., 1975, 4th European Comminution Symposium (Nurenberg), Dechema Mono-graphien, 79, p. 1.
Weichert, R., 1992, Zement-Kalk-Gips, 3, p. 51.
Weller, K.R., Norgate, T.E., Sterns, U.J., and Housley, A.G., 1990, 7th European Comminution Symposium (Ljubljana), preprints, Part 2, pp. 821–835.
Author information
Authors and Affiliations
Additional information
SME nonmeeting paper 96–602. Discussion of this peer-reviewed and approved paper is invited and must be submitted, in duplicate, prior to May 31, 1997.
Rights and permissions
About this article
Cite this article
Fuerstenau, D.W., Vazquez-Favela, J. On assessing and enhancing the energy efficiency of comminution processes. Mining, Metallurgy & Exploration 14, 41–48 (1997). https://doi.org/10.1007/BF03402750
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF03402750