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

Montaha Aoun-Habbache (1) , M Aoun (2) , Henri Berthiaux (1) , V Mizonov (3)

1 Poudres et procédés - Ecole des Mines Albi-Carmaux
2 Université Sciences et Technologies - Bordeaux I
3 Department of Applied Mathematics (Ivanovo, Russie)

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.

Mots clés: powder mixing; hoop mixer; image analysis; particulate tracer; Markov chain model

Domaines: Sciences de l'ingénieur [physics]

Montaha Aoun-Habbache, M Aoun, Henri Berthiaux, V Mizonov. An experimental method and a Markov chain model to describe axial and radial mixing in a hoop mixer. Powder Technology, 2002, 128 (2-3), pp.159-167. ⟨10.1016/S0032-5910(02)00193-6⟩. ⟨hal-01664121⟩