DEVICE FOR SCREENING OF COKE FINES Russian patent published in 1994 - IPC

FIELD: material classification. SUBSTANCE: device has frame with rolls positioned on it to make a screening surface having the form of an inclined trough. The rolls are mounted for rotation with equal linear velocity. The rolls positioned on different sides from the longitudinal axis of the trough are oppositely rotated. Each roll is set in rotation with the angular velocity given by the relationship . K = coefficient of coke to material friction. = mass productivity; r = radius of the roll; r = bulk density of the coke; b = width of the screening device; h = height of the coke layer on the screening device. EFFECT: more efficient screening of coke fines from the bulk core. 2 cl, 10 dwg