Comparison of energy efficiency between ball mills and stirred mills in coarse grinding / Fengnian Shi 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. 673–680 Titre : Comparison of energy efficiency between ball mills and stirred mills in coarse grinding Type de document : texte imprimé Auteurs : Fengnian Shi, Auteur ; Rob Morrison, Auteur ; Andrew Cervellin, Auteur Année de publication : 2009 Article en page(s) : pp. 673–680 Note générale : Génie Minier Langues : Anglais (eng) Mots-clés : Comminution Grinding Résumé : Stirred mills are primarily used for fine and ultra-fine grinding. They dominate these grinding applications because greater stress intensity can be delivered in stirred mills and they can achieve better energy efficiency than ball mills in fine and ultra-fine grinding. Investigations were conducted on whether the greater performance of stirred mills over ball mills in fine grinding can be extended to coarse grinding applications. Four different laboratory ball mills and stirred mills have been tested to grind seven ore samples with feed sizes ranging from 3.35 mm to 150 μm. A case study on full scale operations of a 2.6 MW IsaMill replacing the existing 4 MW regrind ball mill at Kumtor Gold Mine in Kyrgyzstan is also included. This paper summarizes the major findings from these investigations. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687508002823 [article] Comparison of energy efficiency between ball mills and stirred mills in coarse grinding [texte imprimé] / Fengnian Shi, Auteur ; Rob Morrison, Auteur ; Andrew Cervellin, Auteur . - 2009 . - pp. 673–680. Génie Minier Langues : Anglais (eng) in Minerals engineering > Vol. 22 N° 7/8 (Juin/Juillet 2009) . - pp. 673–680 Mots-clés : Comminution Grinding Résumé : Stirred mills are primarily used for fine and ultra-fine grinding. They dominate these grinding applications because greater stress intensity can be delivered in stirred mills and they can achieve better energy efficiency than ball mills in fine and ultra-fine grinding. Investigations were conducted on whether the greater performance of stirred mills over ball mills in fine grinding can be extended to coarse grinding applications. Four different laboratory ball mills and stirred mills have been tested to grind seven ore samples with feed sizes ranging from 3.35 mm to 150 μm. A case study on full scale operations of a 2.6 MW IsaMill replacing the existing 4 MW regrind ball mill at Kumtor Gold Mine in Kyrgyzstan is also included. This paper summarizes the major findings from these investigations. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687508002823

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