A PROCESS AND A DEVICE FOR THE SEPARATION OF TENACIOUSLY ELASTIC MATERIALS SUCH AS PLASTICS AND MATERIALS DEFIBERIZING UNDER MECHANICAL STRESS SUCH AS PAPER

摘要

THE INVENTION RELATES TO A PROCESS FOR SEPARATING TENACIOUSLY ELASTIC MATERIALS SUCH AS PLASTICS AND RUBBER FROM MATERIALS TEARING AND/OR DEFIBERIZING UNDER HIGH MECHANICAL STRESS, PARTICULARLY PAPER, AND TO A DEVICE FOR PERFORMING SAID PROCESS. THE PROCESS IS CHARACTERIZED IN THAT THE MIXTURE OF MATERIALS TO BE SEPARATED IS SUBJECTED TO HIGH RADIAL, AXIAL AND TANGENTIAL ACCELERATION FORCES, WHEREBY A MASS FLOW OF SHREDDED FIBROUS MATERIAL AND A MASS FLOW OF SUBSTANTIALLY UNSHREDDED PLASTICS IS WITHDRAWN SEPARATELY. THE DEVICE FOR PERFORMING THE PROCESS CONSISTS OF A SCREEN BASKET WHICH IS CYLINDRICAL OR PREFERABLY POLYGONAL IN SHAPE AND HAS BORINGS IN ITS JACKET TO LET THE DEFIBERIZED MATERIAL PASS THROUGH, A ROTATABLE DRIVING SHAFT BEING ARRANGED COAXIALLY INSIDE THE SCREEN BASKET, WITH BLADES BEING ATTACHED TO SAID DRIVING SHAFT, PREFERABLY IN RIGID CONNECTION.