Refining surface and a blade segment for a refiner

Details Refining surface and a blade segment for a refiner Refining surface and a blade segment for a refiner

B - Operations, Transporting

02

C

B02C 7/12 (2006.01) D21B 1/14 (2006.01) D21D 1/30 (2006.01)

Patent

CA 2536794

A refining surface for a refiner intended for defibrating lignocellulose- containing material. The refining surface (1, 2) comprises first bars (12) extending from the inner circumference of the refining surface (1, 2) to the outer circumference of the refining surface (1, 2) and between them first grooves (13). The upper surfaces (18) of the first bars (12) further comprise second grooves (15) connecting said first grooves (13), between which second grooves (15) there are second bars (14), which are narrower than the first bars (12). Furthermore, a blade segment for forming refiner surface blades of a refiner intended for defibrating lignocellulose-containing material.

L'invention concerne une surface de raffinage destinée à un raffineur conçu pour défibrer une matière contenant de la lignocellulose. La surface de raffinage (1, 2) comprend des premières barres (12), qui s'étendent de la circonférence intérieure de la surface de raffinage (1, 2) à la circonférence extérieure de la surface de raffinage (1, 2) et entre lesquelles s'étendent des premières rainures (13). Les surfaces supérieures (18) des premières barres (12) comprennent en outre des secondes rainures (15) qui sont reliées aux premières rainures (13), des secondes barres (14), plus étroites que les premières barres (12), se trouvant entre ces secondes rainures (15). L'invention concerne en outre un segment de lame utilisé pour former des lames de surface destinées à un raffineur conçu pour défibrer une matière contenant de la lignocellulose.

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