Selected mineral materials grinding rate and its effect on product granulometric composition

• Autorzy: Olejnik T. P.
• Języki publikacji: EN

Abstrakty

EN

The article presents investigation on the grinding rate constant. A selection function was measured for different raw materials using a ball mill, and effects of the grinding ball diameter and feed particle sizes on the materials grinding rate constant were investigated. The study was conducted for the mill on a semi-technical scale. The process was carried out periodically using several sets of grinding media. Relations for all investigated materials were expressed by the modified Snow equation. Additionally, the descriptions of the grinding rate was examined. The tendency in the variation of the grinding rate constant with the particle size was similar for all materials used, and was independent of the ball diameter. The author used two selection functions derived theoretically by Tanaka.

Słowa kluczowe

EN

ball mill; specific grinding rate; contact points; size distribution

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2013
• Tom: Vol. 49, iss. 2
• Strony: 407--418
• Opis fizyczny: Bibliogr. 17 poz., rys., wykr.

Twórcy

autor

Olejnik T. P.

• Faculty of Process and Environmental Engineering, University of Technology Lodz, Wolczanska 213, 90-924 Lodz

Bibliografia

• 1. AUSTIN L.G., SHOJI K., LUKIE P.T., 1976, The effect of ball size on mill performance, Powder Technol. 14, 71–79.
• 2. CHAPPELL B.W., WHITE A.J.R., 2001, Two contrasting granite types: 25 years later. Australian Journal of Earth Sciences 48, 489–499.
• 3. EPSTEIN B., 1948, Logarithmic-normal distribution in breakage of solids, Ind. Eng. Chem. 40, 2289–2291.
• 4. GAUDIN A.M., MELOY T.P., 1962, Model and a comminution distribution equation for repeated fracture, Trans. AIME 223, 43–50.
• 5. HERBST J.A., FUERSTENAU D.W., 1968, The zero-order production of fine sizes in comminution and its implications in simulation, Trans. AIME 241, 538–549.
• 6. KANDA H., GUNJI H., TAKEUCHI K., 1978, Rate constants of wet and dry ball mill grinding, J. Soc. Mater. Sci., Jpn. 27, 1978, 663–666.
• 7. KELSALL D.F., REID K.J., RESTARICK C.J., 1968, Continuous grinding in a small wet ball mill: Part I. A study of the influence of ball diameter, Powder Technol. 1, 291–300.
• 8. NOMURA S., HOSODA K., TANAKA T., 1991, An analysis of the selection function for mills using balls as grinding media, Powder Technol. 68, 1–12.
• 9. NOTAKE N., SUZUKI K., ASAHI S., KANDA Y., 2002, Experimental study on the grinding rate constant of solid materials in a ball mill, Powder Technology 122, 101–108; PII: S0032-5910(01)00405-3.
• 10. OBRANIAK A., GLUBA T., 2012, Model of energy consumption in the range of nucleation and granule growth in drum granulation of bentonite, Physicochemical Problems of Mineral Processing, 48 (1), 121-128
• 11. OLEJNIK T.P., 2010, Milling rate of chosen mineral materials in a ball mill under changing apparatus-process conditions, Proceedings of Comminution’10, CD, s.1-11, 2010.
• 12. OLEJNIK T.P., 2011, Milling kinetics of chosen rock materials under dry conditions considering strength and statistical properties of bed, Physicochemical Problems of Mineral Processing; 46; s. 145-154, 2011.
• 13. OLEJNIK T.P., 2012, Analysis of the breakage rate function for selected process parameters in quartzite milling, Chemical and Process Engineering, 2012, 33 (1), 117-129.
• 14. REID K.J., 1965, A solution to the batch grinding equation, Chem. Eng. Sci. 20, 953–963.
• 15. SNOW R.H., 1973, Gringing mill simulation and scale-up of ball mills. Proc. 1st Int. Cof. Particle Technol. IITRI, Chicago, p. 28.
• 16. ZHAO Q.Q., JIMBO G., 1988, The effect of grinding media on the breakage rate of planetary mill, J. Soc. Powder Technol., Jpn. 25, 603–608.
• 17.ZINGG T., 1935, Beitrag zur Schotteranalyse. Mineralogische und Petrologische Mitteilungen 15, 39–140.