B - Operations – Transporting – 02 – C
Patent
B - Operations, Transporting
02
C
B02C 7/12 (2006.01) B02C 7/11 (2006.01) D21B 1/14 (2006.01) D21B 1/26 (2006.01) D21D 1/30 (2006.01)
Patent
CA 2276596
A feeding device intended for refiners with two opposed refining means (11,12), of which one is stationary and one rotary. The refining means are provided with refining elements (14,15), which between themselves form a refining gap (17) with a refining zone (16) for working lignocellulosic fibrous material. The feeding device (22) comprises a circular disk (23) with at least one strip (24), which extends from a position close to the centre of the disk radially outward to the circumference of the disk. This strip (24) along the greater portion of its upper edge is provided with a roof (25) projecting out symmetrically on both sides of the strip. The feeding device (22) is intended to be placed centrally on the rotary refining means (12) with the strip (24) facing to a central material feed opening (19) in the stationary refining means (11).
L'invention concerne un dispositif d'alimentation destiné à des broyeurs à deux disques (11, 12), l'un stationnaire et l'autre rotatif. Des éléments (14, 15) de ces disques forment entre eux un interstice (17) et déterminent une zone de broyage (16) permettant le traitement de la matière fibreuse ligno-cellulosique. Le dispositif d'alimentation (22) comprend un disque circulaire (23) doté d'au moins une bande (24) disposée radialement vers l'extérieur depuis un point proche du centre du disque vers la circonférence du disque. La bande (24) est dotée, sur la plus grande partie de son bord supérieur, d'un toit (25) symétriquement en saillie de chaque côté de la bande. Le dispositif d'alimentation (22) est destiné à être placé de façon centrale sur le broyeur (12) rotatif, la bande (24) faisant face à une ouverture centrale (19) pratiquée dans le moyen de raffinage (11) stationnaire et destinée à l'alimentation de la matière.
Fetherstonhaugh & Co.
Sunds Defibrator Industries Ab
Valmet Fibertech Aktiebolag
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