Disc refiner with conical ribbon feeder

Details Disc refiner with conical ribbon feeder Disc refiner with conical ribbon feeder

D - Textiles, Paper

21

D

D21D 1/30 (2006.01) B02C 7/11 (2006.01) D21B 1/22 (2006.01)

Patent

CA 2219905

A feeder assembly (36) for lignocellulosic chip refiner (10) has a conical core (50) having a major diameter end and a minor diameter end. A helically coiled ribbon (38) is supported by and extends longitudinally in spaced relation with the core. The ribbon is defined by turns (40) of increasing diameter extending from the minor to the major diameter end of the core. A conical feed housing (54) surrounds the ribbon.

L'invention porte sur un ensemble alimentateur (36) d'un raffineur (10) de copeaux lignocellulosiques comportant une partie centrale conique (50) présentant une extrémité de grand diamètre et une extrémité de petit diamètre. Une bande enroulée hélicoïdalement (38) et portée par la partie centrale s'étend longitudinalement à une distance donnée de cette dernière. La bande comporte des spires (40) allant en croissant du petit diamètre de la partie centrale vers le plus grand. Un carter conique d'alimentation (54) entoure ladite bande.

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