Linear and nonlinear particle breakage processes in comminution systems

Fuerstenau, D. W. ; De, A. ; Kapur, P. C. (2004) Linear and nonlinear particle breakage processes in comminution systems International Journal of Mineral Processing, 74 (Suppl.1). S317-S327. ISSN 0301-7516

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In comminution modeling, breakage rate (selection) functions are generally influenced more by the comminution machine than are breakage distribution functions. Linear grinding kinetics can be expressed either in terms of grinding time or specific energy consumption. Nonlinearities in comminution are caused by energy transfer mechanisms in the comminution machine whereby coarser particles might be ground preferentially or are protected by fines, by energy dissipation through interparticle friction in compressed bed comminution, and sometimes from heterogeneities produced in the feed particles. This paper discusses modifications of breakage rate functions for a number of situations and compares simulated and experimental results.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Comminution Modeling; Energy Dissipation; Interparticle Friction
ID Code:17637
Deposited On:16 Nov 2010 12:56
Last Modified:04 Jun 2011 07:19

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