Structuring of Batch Mixer Loading to Improve Mixing Time and Mixture Quality of Solids

Vadim Mizonov (1) , Ivan Balagurov (1) , Henri Berthiaux (2) , Cendrine Gatumel (2)

1 Department of Applied Mathematics (Ivanovo, Russie)
2 RAPSODEE - Centre de recherche d'Albi en génie des procédés des solides divisés, de l'énergie et de l'environnement

A simple yet informative model was built to estimate the influence of the initial distribution of dissimilar particulate solids to be mixed on the mixing time and mixture quality, and a way was searched to reduce the negative influence of segregation on the mixing process. The influence of segregation is particularly strong when it is necessary to mix a small amount of a key component with a large amount of a basic one. It is shown that the mixing time and mixture quality can be noticeably improved by introducing a premixing stage that consists in loading the key component in layers distributed over the basic component. A possible technical solution for such loading is also proposed. Experimental tests of such lab‐scale vibration mixer proved its efficiency.

Mots clés: Markov chain; Mixing kinetics; Mixing of solids; Multilayer loading; Segregation

Domaines: Sciences de l'ingénieur [physics]

Vadim Mizonov, Ivan Balagurov, Henri Berthiaux, Cendrine Gatumel. Structuring of Batch Mixer Loading to Improve Mixing Time and Mixture Quality of Solids. Chemical Engineering and Technology, 2018, 41 (8), ⟨10.1002/ceat.201700505⟩. ⟨hal-01802449⟩