The effect of ball size on breakage rate parameter in a pilot scale ball mill / A. Seyfi Erdem in Minerals engineering, Vol. 22 N° 7/8 (Juin/Juillet 2009)  

Public ISBD [article]  inMinerals engineering > Vol. 22 N° 7/8 (Juin/Juillet 2009) . - pp. 660–664 Titre : The effect of ball size on breakage rate parameter in a pilot scale ball mill Type de document : texte imprimé Auteurs : A. Seyfi Erdem, Auteur ; Ş. Levent Ergün, Auteur Année de publication : 2009 Article en page(s) : pp. 660–664 Note générale : Génie Minier Langues : Anglais (eng) Mots-clés : Grinding Ball mill size Modelling Simulation Résumé : The objective of this study is to investigate the effect of ball size on grinding kinetics in a pilot scale ball mill. Six different ball media gradings were tested. Comparative tests were conducted in batch ball mill having 1.2 m diameter and 0.6 m length at constant operating condition of mill such as media mass, mill speed and input specific energy. Feed samples were ground batchwise and representative sample was taken from inside the mill for each determined grinding period. Grinding process in ball mill was modeled and the specific rate of breakage was calculated for the each test. The results indicated that the relationship between different breakage rate and particle size has a maximum for each ball size distribution. Consequently, a new equation to correlate maximum ball size and particle size at maximum breakage occurs is proposed. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687509000314 [article] The effect of ball size on breakage rate parameter in a pilot scale ball mill [texte imprimé] / A. Seyfi Erdem, Auteur ; Ş. Levent Ergün, Auteur . - 2009 . - pp. 660–664. Génie Minier Langues : Anglais (eng) in Minerals engineering > Vol. 22 N° 7/8 (Juin/Juillet 2009) . - pp. 660–664 Mots-clés : Grinding Ball mill size Modelling Simulation Résumé : The objective of this study is to investigate the effect of ball size on grinding kinetics in a pilot scale ball mill. Six different ball media gradings were tested. Comparative tests were conducted in batch ball mill having 1.2 m diameter and 0.6 m length at constant operating condition of mill such as media mass, mill speed and input specific energy. Feed samples were ground batchwise and representative sample was taken from inside the mill for each determined grinding period. Grinding process in ball mill was modeled and the specific rate of breakage was calculated for the each test. The results indicated that the relationship between different breakage rate and particle size has a maximum for each ball size distribution. Consequently, a new equation to correlate maximum ball size and particle size at maximum breakage occurs is proposed. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687509000314

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