DEVICE FOR SEPARATING COAL ASH Russian patent published in 1996 - IPC

FIELD: wasteless processing of heterogeneous materials to produce construction materials, fillers and other useful components. SUBSTANCE: cylindrical separating chamber with tapered lip is located within small fraction bin. Chamber bottom with central opening generates circular clearance with chamber inner wall. Located below this clearance is large fraction bin and mounted in it below bottom and close to circular clearance are radial electromagnets. Rotor consists of hollow shaft for inflow of material, disks connected by radial blades with cutouts protruding beyond disk edges. In rotation, blades create internally a space in the form of truncated cone with diameter of central hole in disk less than diameter of opening in bottom center. Chamber inner wall has circular partition in the form of descending helix. Small fraction bin is coupled by pipe connections with central bin located under opening in bottom center. EFFECT: high efficiency. 2 cl, 1 dwg