Dry coating in a high shear mixer: Comparison of experimental results with dem analysis of particle motions

Eric Serris (1, 2, 3) , Akira Sato (1, 4, 5) , Alain Chamayou (6) , Laurence Galet (6) , Michel Baron (6) , Philippe Grosseau (1, 2, 4) , Gérard Thomas (1, 2, 4)

1 SPIN-ENSMSE - Centre Sciences des Processus Industriels et Naturels
2 LGF-ENSMSE - Laboratoire Georges Friedel
3 PRESSIC-ENSMSE - Procédés et REactivité des Systèmes Solide-gaz, Instrumentation et Capteurs
4 PROPICE-ENSMSE - Département PROcédés Poudres, Interfaces, Cristallisation et Ecoulements
5 LPMG-EMSE - Laboratoire des Procédés en Milieux Granulaires
6 RAPSODEE - Centre de recherche d'Albi en génie des procédés des solides divisés, de l'énergie et de l'environnement

Experimental dry coating of guest particles on the surface of host particles is performed by mechanical forces in a high shear mixer called "Cyclomix". The studied system (a mixture of particles of sugar, "Suglet^™" as host particles and magnesium stearate as guest particles) was chosen as a model one to achieve better understandings of the phenomena during mixing. To simulate the flow of host/guest particles in the mixer, the Discrete Element Method (DEM) was applied. Experimental results such as flowability and wettability can be explained by particles flows evolutions with different rotational speed or duration treatment inside the Cyclomix.

Mots clés: DEM; Particle motion; Dry coating; Mixer

Domaines: Génie des procédés

Eric Serris, Akira Sato, Alain Chamayou, Laurence Galet, Michel Baron, et al.. Dry coating in a high shear mixer: Comparison of experimental results with dem analysis of particle motions. Powders and Grains 2013, Jul 2013, Sydney, Australia. pp.779, ⟨10.1063/1.4812047⟩. ⟨hal-00846905⟩