PROCESS FOR SEPARATION OF BULK GRANULAR MATERIALS OF DIFFERENT DENSITIES IN A LIQUID OR GASEOUS MEDIUM

摘要

The invention relates to a process for the separation of granular bulk materials of different densities in turbulent layers constituted by liquid or gaseous agents, in which these layers are extracted successively from top to bottom by the fluidizing agent up to the top of the layer. surface of the immediately lower layer, the fluidifying agent placed above the residual layer then being rotated and the residual layer then being rotated and the residual layer carried along by the downward turbulent current thus generated in the central zone. The invention also relates to a device for implementing the method and is especially suitable for nuclear installations.