B - Operations – Transporting – 02 – C
Patent
B - Operations, Transporting
02
C
B02C 7/12 (2006.01) D21B 1/14 (2006.01) D21D 1/30 (2006.01)
Patent
CA 2540937
A refining element intended for refiners for the working of fibrous material, where the refining element (10) is formed with a pattern of bars (11) with upper surfaces (13) and side surfaces (14) and intermediate grooves (12). The bars (11) extend arc-shaped outward over the refining element and the upper working surfaces (13) of the bars (11) are wider and provided with a plurality of smaller grooves (18), which form angles within 10-90~ with the longitudinal direction of the bars, so that the smaller grooves (18) on the bars (11) extend substantially radially.
La présente invention concerne un élément de raffinage conçu pour des dispositifs raffineurs permettant le traitement de matière fibreuse, ledit élément de raffinage (10) étant formé d'un motif de barres (11) dotées de surfaces supérieures (13) et de surfaces latérales (14) séparées par des rainures intermédiaires (12). Les barres (11) s'étendent en forme d'arc vers l'extérieur au-dessus de l'élément de raffinage et les surfaces de travail supérieures (13) des barres (11) sont élargies et dotées d'une pluralité de rainures de dimension inférieure (18), lesdites rainures formant des angles compris entre 10 et 90· avec la direction longitudinale des barres, de sorte que les rainures de dimension inférieure (18) sur les barres (11) s'étendent sensiblement radialement.
Fetherstonhaugh & Co.
Metso Paper Inc
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