Modelling of grinding in an air classifier mill based on a fundamental material function

Peukert W, Vogel L (2003)


Publication Language: English

Publication Type: Journal article

Publication year: 2003

Journal

Book Volume: 21

Pages Range: 109-120

DOI: 10.14356/kona.2003014

Abstract

An approach to quantifying the impact grinding per formance of dif ferent materials is presented. Based on a dimensional analysis and on fracture mechanical considerations, two material parameters, f Mat.and W m,min, are derived theoretically. fMat . characterises the resistance of particulate material  against  fracture  during  impact  comminution.  Wm,min gives  the  mass-specif ic  energy  which  aparticle can absorb without fracture. Using this approach, various materials over a wide size range, e.g.  dif ferent  polymers,  crystalline  substances,  glass  and  limestone,  can  be characterised  quantitatively.  The  derived  material  parameters  are  applied  to  the  systematic  modelling  of  grinding  in impact mills. A population balance model is presented and the results of the simulation for an air classifier mill are shown. The developed model permits a clear separation of the inf luence of material properties, mill-specif ic features and operating conditions, thus enabling a deeper understanding of the impact grinding process

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How to cite

APA:

Peukert, W., & Vogel, L. (2003). Modelling of grinding in an air classifier mill based on a fundamental material function. KONA Powder and Particle Journal, 21, 109-120. https://dx.doi.org/10.14356/kona.2003014

MLA:

Peukert, Wolfgang, and Lutz Vogel. "Modelling of grinding in an air classifier mill based on a fundamental material function." KONA Powder and Particle Journal 21 (2003): 109-120.

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