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This paper covers theoretical and experimental explorations for the sake of determining the optimal ball charge in mills. In the first part of the paper, on the basis of the theoretical analysis of the energy-geometric correlations, which are being established during the grain comminution by ball impact, as well as on the basis of the experiment carried out on grinding quartz and copper ore in a laboratory ball mill, there has been defined a general form of the equation for determining: the optimal ball diameter depending on the grain size being ground; and the parameter of the equation through which the influence of a mill is being demonstrated; then the parameter of the grinding conditions; and the parameter of the material characteristics being ground in relation to the ball size. In the second part of the paper, the process of making up the optimal ball charge has been defined providing the highest grinding efficiency, as well as its confirmation by the results of the experimental explorations.
Słowa kluczowe
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Tom
Strony
329--339
Opis fizyczny
Bibliogr. 14 poz.
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autor
autor
autor
autor
- Megatrend University, Faculty of Management, Park suma kraljevica bb, Zajecar, Serbia, mtrumic@tf.bor.ac.rs
Bibliografia
- 1. AUSTIN, L.G., SHOJI, K., LUCKIE, P.T., 1976, The effect of ball size on mill performance, Powder Technol. 14 (1), 71–79.
- 2. BELECKI, E.P., 1985, Vibor razmera šarov dlja šarovih meljnic, Obogašchenie rud, 11, 40-42.
- 3. BOND, F.C., 1961, Crushing and Grinding Calculations, Allis Chalmers Tech. Pub. O7R9235B.
- 4. CONCHA, F., MAGNE, L., AUSTIN, L.G., 1992, Optimization of the make-up ball charge in a grinding mill, Int. J. Miner. Process. 34 (3), 231–241.
- 5. ERDEM, A.S. ERGUN, S.L., 2009, The effect of ball size on breakage rate parameter in a pilot scale ball mill, Miner. Eng. 22, 660–664
- 6. FUERSTENAU, D.W., LUTCH, J.J., DE, A., 1999, The effect of ball size on the energy efficiency of hybrid high-pressure roll mill/ball mill grinding, Powder Technol. 105, 199–204.
- 7. KATUBILWA, F. M., MOYS, M.H., 2009, Effect of ball size distribution on milling rate, Miner. Eng. 22, 1283–1288
- 8. KOTAKE, N., DAIBO, K., YAMAMOTO, T., KANDA, Y., 2004, Experimental investigation on a grinding rate constant of solid materials by a ball mill—effect of ball diameter and feed size, Powder Technol. 143– 144, 196– 203
- 9. OLEJNIK, T.P., 2010, Kinetics of grinding ceramic bulk considering grinding media contact points, Physicochem. Probl. Miner. Process. 44, 187–194.
- 10. OLEJNIK, T.P., 2011, Milling kinetics of chosen rock materials under dry conditions considering strength and statistical properties of bed, Physicochem. Probl. Miner. Process. 46, 145–154.
- 11. OLEVSKIJ, V.A., 1948, Najvigodesni razmer šarov dlja šarovih meljnici, Gornij žurnal, 1,1–5.
- 12. RAZUMOV, K.A., 1947, Racionirovanoe pitanie meljnic šarami, Gornij žurnal 3, 31–35.
- 13. ŠUPOV, L.P., 1962, Udarnoe dejstvie šarov v meljnice, Obogašshenie rud, 4, 15–20.
- 14. TRUMIC, M., MAGDALINOVIC, N., TRUMIC, G., 2007, The model for optimal charge in the ball mill, Journal of Mining and Metallurgy A, 43, 19–32.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BAT1-0043-0074