SEGREGATION MODELING OF PARTICLE RAPID GRAVITY FLOW

A model describing the size and density separation of granular materials undergoing gravity flow down a rough inclined chute is analyzed in the present paper. A dynamic model is developed on the basis of an equivalent mass transfer equation taking into account the mass transfer due to convection, quasi-diffusion and segregation. Segregation and quasi-diffusion kinetic parameters are developed from the gravity flow microstructural analysis based on Ackermann and Shen's [14] theological model. An experimental and analytical method of investigation of the parameters of the granular material rapid gravity flow down a rough inclined chute is being developed. It is based on the analysis of the free fall phase of the particles that starts after the particles have been sent down the chute. The analogy between the patterns of rapid shear flow and molecular gas dynamics of the particles is used. The results of the particles of segregation modeling of granular material gravity flow down an inclined chute are compared with experimental data.