FIELD: concentration, applicable for processing of mineral resources by the method of blow-off in mechanically movable boiling layer. SUBSTANCE: the source material is separated in the process of its movement from the point of charging to the point of discharge over an inclined table installed for movement from the drive, the source material is sieved on the sieve of the inclined table with formation of tails with a subsequent catching of native metals, thin particles are blown off from the tails through a sieve by means of blow-off nozzles, movement of concentrated mass is initiated in each cell in the form of a body of revolution of the inclined table by table movement. Compressed air is fed from three driving-up nozzles from the bottom along the rounded-off generating line of the cell body of revolution for creation of rarefaction differential, a fluidized bed is produced in each cell, the tails is separated with production of concentrate by displacement of light particles through the overfilling baffle at the joint of the cells. The inclined table is suspended from the top on spring-loaded rods with an adjustable threaded fixture for presetting the angle of inclination, and installed for circular movement on four cardan shafts with an adjustable threaded fixture on each of them; the drive mechanism has an eccentric in the form of a chuck plate and tie-rod with a spherical roller bearing at the end and appliance for adjustment of the amplitude of circular movement. EFFECT: enhanced efficiency of extraction of mineral resources. 3 cl, 5 dwg
