An experimental method and a Markov chain model to describe axial and radial mixing in a hoop mixer

An experimental methodology is developed to investigate the simultaneous axial and radial mixing of particles in a hoop mixer. This involves following the migration of a colored tracer, with flow properties identical to that of the bulk using tracer detection by image analysis. The particle transiti...

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Bibliographic Details
Published in:Powder technology 2002-12, Vol.128 (2), p.159-167
Main Authors: Aoun-Habbache, M, Aoun, M, Berthiaux, H, Mizonov, V
Format: Article
Language:English
Subjects:
Engineering Sciences
Hoop mixer
Image analysis
Markov chain model
Particulate tracer
Powder mixing
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Summary:An experimental methodology is developed to investigate the simultaneous axial and radial mixing of particles in a hoop mixer. This involves following the migration of a colored tracer, with flow properties identical to that of the bulk using tracer detection by image analysis. The particle transitions from all initial tracer positions inside the mixer are calculated and the experimental conditions are established which improve the homogeneity of the mixture. Finally, a Markov chain model is derived which gives a good representation of the experimental data.
ISSN:0032-5910
1873-328X
DOI:10.1016/S0032-5910(02)00193-6