PROCEDURE AND DEVICE FOR THE DOSAGE EXTRACTION OF A SOLID SUBSTANCE OR MIXTURE OF SOLID SUBSTANCES FROM FINE GRAIN TO GRANE GRAIN FROM A RESERVE DEPOSIT.

摘要

Procedure for the dosed extraction of a solid substance or mixture of solid substances from fine grain to coarse grain from a reservoir with a facility for the formation of a fluidized bed in the discharge zone or in a dosing chamber of the reservoir of reserve, characterized in that a gas is additionally introduced in the area of the bottom of the dosing chamber for the formation of a fluidized bed that hollows the solid substance and a gas through torsion nozzles for the displacement of the fluidized bed in rotation, in that the solid substance is extracted in the direction of the force of gravity downward from the dosing chamber.