FIELD: separation of materials. SUBSTANCE: separator has working chamber connected with a rotation drive and having discharging edge, facility for supplying pulp to the bottom of the chamber, facility for collecting exhaust pulp. Upstream of the discharging edge the working chamber is diverging. Upstream of the discharging edge is a flow separator made up as an assemble of rings whose inner diameter is greater than the diameter of the working chamber, The rings are mounted for permitting movement with respect to each other and discharging edge. The facility for collecting exhaust pulp is made up as ring chambers underlying the rings. The ring chambers are spiral. EFFECT: enhanced efficiency. 2 cl, 1 dwg
