Patent ID: 6206199
Filing Date: 2001-03-27
Classification: B02C,B03B,B07B,B29B,B29K,B29L,D21B,Y02W

Abstract:
A method of recovering different components of a multiple layer material (20) delivered to an infeed zone (4) of a refiner (2) that includes mutually opposing discs (5, 6) which rotate relative to one another and which include material engaging surfaces or material engaging elements (5a, 6a), the method comprising:a) adjusting a gap between the discs (5, 6) so that the multiple layer material (20) is subjected to a shear force that separates the material layers into a form of pieces or fragments without substantially disintegrating the layers; andb) pumping the separated pieces (20'; 20"") together with a supplied suspension liquid (21) to a separator (3) and separating readily pulped or slushed pieces (20') suspended in the suspension liquid from pieces of material (20"") that are not readily pulped or slushed.