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New developments in cone crusher performance optimization / Jens Lichter in Minerals engineering, Vol. 22 N° 7/8 (Juin/Juillet 2009) 

Public ISBD [article]  in Minerals engineering > Vol. 22 N° 7/8 (Juin/Juillet 2009) . - pp. 613–617 Titre : New developments in cone crusher performance optimization Type de document : texte imprimé Auteurs : Jens Lichter, Auteur ; King Lim, Auteur ; Alex Potapov, Auteur Année de publication : 2009 Article en page(s) : pp. 613–617 Note générale : Génie Minier Langues : Anglais (eng) Mots-clés : Comminution  Crushing  DEM  Process  optimization Résumé : This paper shall review Metso Minerals’ current 3D Discrete Element Method (DEM) modeling techniques, developed to allow a detailed study of the interactions of crushing design variables with actual rock mechanics. A standard DEM approach cannot be applied to systems where size reduction is an important element in the flow of particles, such as industrial crushers. In these systems, it is necessary to physically decrease the particle sizes in a realistic way, as they are transported through the device. Metso Minerals has therefore developed a breakage model that incorporates elements of Population Balance Modeling (PBM) techniques to describe breakage as a function of the loads on the individual rocks. The combination of this breakage model with DEM has therefore allowed the development of a multi physics based comminution model that can be applied to crusher development. This model is sensitive to all aspects of crusher design including crusher machine parameters and the ore characteristics. This physics based virtual comminution model will enable engineers to optimize the design development of future crushers by allowing a wider range of values for the crusher variables to be investigated in a rapid, yet more detailed manner, without the need for the traditional expensive and lengthy prototype testing. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687509001083 [article] New developments in cone crusher performance optimization [texte imprimé] / Jens Lichter, Auteur ; King Lim, Auteur ; Alex Potapov, Auteur . - 2009 . - pp. 613–617. Génie Minier Langues : Anglais (eng) in Minerals engineering > Vol. 22 N° 7/8 (Juin/Juillet 2009) . - pp. 613–617 Mots-clés : Comminution  Crushing  DEM  Process  optimization Résumé : This paper shall review Metso Minerals’ current 3D Discrete Element Method (DEM) modeling techniques, developed to allow a detailed study of the interactions of crushing design variables with actual rock mechanics. A standard DEM approach cannot be applied to systems where size reduction is an important element in the flow of particles, such as industrial crushers. In these systems, it is necessary to physically decrease the particle sizes in a realistic way, as they are transported through the device. Metso Minerals has therefore developed a breakage model that incorporates elements of Population Balance Modeling (PBM) techniques to describe breakage as a function of the loads on the individual rocks. The combination of this breakage model with DEM has therefore allowed the development of a multi physics based comminution model that can be applied to crusher development. This model is sensitive to all aspects of crusher design including crusher machine parameters and the ore characteristics. This physics based virtual comminution model will enable engineers to optimize the design development of future crushers by allowing a wider range of values for the crusher variables to be investigated in a rapid, yet more detailed manner, without the need for the traditional expensive and lengthy prototype testing. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687509001083