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The specific selection function effect on clinker grinding efficiency in a dry batch ball mill

Touil, Djamel and Belaadi, Salah and Frances, Christine The specific selection function effect on clinker grinding efficiency in a dry batch ball mill. (2008) International Journal of Mineral Processing, vol. 87 (n° 3-4). pp. 141-145. ISSN 0301-7516

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Official URL: http://dx.doi.org/10.1016/j.minpro.2008.02.003

Abstract

Dry grinding experiments on cement clinker were carried out using a laboratory batch ball mill equipped with a torque measurement. The influence of the ball size distribution on the specific selection function can be approached by laboratory runs using mono-size balls. The breakage is more efficient with maximal specific selection functions at the initial size reduction stage. But, in terms of cement finish grinding all stages of grinding are determinant for the production of a required Blaine surface area (3500 cm2/g). So, the choice of ball size according to a maximal specific selection function leads to an increase of the energy consumption. In addition, investigations on the mono-sized fractions and on the crude material (size minus 2.8 mm) demonstrate that the energy efficiency factor can be optimized using ball size corresponding to relatively low specific selection function.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at International Journal of Mineral Processing website : http://www.sciencedirect.com/science/journal/03017516
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Other partners > Université des Sciences et de la Technologie Houari Boumedienne - USTHB (ALGERIA)
French research institutions > Centre National de la Recherche Scientifique - CNRS
Laboratory name:
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Deposited By: Hélène Dubernard
Deposited On:12 Nov 2008 10:27

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