DEVICE FOR SEPARATING MATERIAL FLOW INTO SIZE FRACTIONS Russian patent published in 1998 - IPC

FIELD: classification of waste in wood-working industry and wood pulp and paper industry. SUBSTANCE: device for separating material flow into size fractions has receiving and discharging sections, roller screen consisting of shafts with disks staggered on the shafts and shaft drive. All the disks are installed at an angle of 70 to 80 deg in relation to the shaft axis to ensure constant cross-section of the screen. Projections of the discs onto the plane perpendicular to the shaft axis comprise circumferences. EFFECT: improved efficiency. 3 dwg