METHOD OF CENTRIFUGAL SEPARATION OF MIXTURES Russian patent published in 2018 - IPC B03B5/32 

FIELD: mining.

SUBSTANCE: invention relates to the mining industry, namely, to centrifugal separation of mixtures according to density in variable centrifugal fields when enriching concentrates of placer deposits, crushed ore material of gold, platinum and other heavy minerals. Method of separating granular materials by density includes feeding the mixture to the separator in the form of a bowl, giving the material a precessional motion, separating in an alternating centrifugal field, and discharging separation products. Create a centrifugal field intensity up to tens of g. Profile of the bowl separation zone is defined as cylindrical or weakly conical with a direct or reverse taper with respect to the drain threshold of the bowl. Angle of inclination of the bowl axis to the axis of rotation is set to a large angle of inclination of the generator of the separation zone. Angle of inclination is set such that by precessional movement of the generatrix of the separation zone from the maximum to the minimum radius of distance from the axis of rotation, the direction of inclination of the generatrix to the axis of rotation is changed and change the direction of the vector of the longitudinal component of the centrifugal force along the generatrix of the separation zone to the opposite, by the action of this force, the flow of the suspension is turbulized.

EFFECT: increase the efficiency of separation of mixtures by density.

1 cl, 5 dwg