Refiner plate steam management system

B - Operations – Transporting – 02 – C

Patent

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Details

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

Patent

CA 2337636

A refiner plate for the face of a refiner disc comprising a plurality of refiner segments (10) arranged side-by-side on the face of the disc to form a substantially annular refining region. Each refiner segment has a plurality bars (40) and grooves (34) for refining a lignocellulosic material and forming a path for receiving and transmitting steam generated during the refining process. A plurality of dams (46) are disposed within the grooves to retard the movement of the lignocellulosic material. A partial height portion of each dam adjacent the trailing face of the bar provides a flow path for the steam.

L'invention concerne une plaque de raffineur pour la face d'un disque de raffineur, comprenant une pluralité de segments de raffineur (10) agencés côte à côte sur la face du disque en vue de former une zone de raffinage sensiblement annulaire. Chaque segment de raffineur comprend une pluralité de barres (40) et de rainures (34) pour le raffinage d'un matériau ligno-cellulosique et la formation d'un parcours pour la réception et la transmission de la vapeur générée au cours du processus de raffinage. Une pluralité de moyens formant barrage (46) est prévue à l'intérieur des rainures, en vue de ralentir le déplacement du matériau ligno-cellulosique. Une portion à hauteur partielle de chaque barrage, adjacente à la face arrière de la barre, forme un parcours d'écoulement pour la vapeur.

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