GRINDING-SEPARATING APPARATUS Russian patent published in 2002 - IPC

FIELD: concentration equipment used in mining industry. SUBSTANCE: apparatus has vertical vortex grinding-drying device equipped with activating wheel, false wall having baffle, individual gas ducts connected with heat-exchanger, feeder, movable cone arranged in upper part of apparatus, oval-shaped body fixed in center, heat generator, air distributor, exhaust fan, and aspiration system. All said parts of apparatus are connected in series with one another through single air system. Activating wheel of vortex grinding-drying device is made in the form of turbine with guiding blades carrying beats. Individual gas ducts of false wall and turbine are made as integral volute. Upper end of oval-shaped body is arranged above charging feeder. Aspiration system has two or four dust settling stages arranged in succession. Apparatus is used for selective grinding, drying and separation of multiple component materials, particularly, minerals for concentration of sand, wollastonite, quartz-topaz rock, vermiculite, marble powder, talc, as well as for preparing dry mixtures and powder from raw clay materials etc. EFFECT: increased efficiency and wider operational capabilities. 4 cl, 1 dwg