Feeder

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D - Textiles, Paper

21

C

D21C 7/06 (2006.01)

Patent

CA 2611575

Revolver-type transfer device for bulk material with a new type of a sealing system. The transfer device comprises a rotatable shaft (6) with a rotor (3) having a plurality of axial flow channels (4,5); and a casing (1) enclosing the rotor. Axially movable sealing plates (11,12) are provided between the ends of the rotor and the ends of the casing and means for pressurizing the chamber (2) by feeding a pressurized fluid (L1) to the casing. The device comprises connections (13,14,15,16) for low-pressure flow into and out of the flow channels and for high-pressure flow into and out of the flow channels. The device can be used to transfer steamed wood chips in solution from low pressure into a digester at high pressure.

Dispositif de transfert de type tournant pour matériau en vrac doté d~un nouveau type de système d~étanchéité. Le dispositif de transfert comprend un arbre rotatif (6) doté d~un rotor (3) comportant une pluralité de passages d~écoulement axiaux (4, 5) ; et un carter (1) abritant le rotor. Des plaques d~extrémité (11, 12) mobiles axialement sont montées entre les extrémités du rotor et les extrémités du carter et un moyen de mise sous pression d~une chambre (2) par injection d~un fluide sous pression (L1) dans le carter. Le dispositif comprend des branchements (13, 14, 15, 16) d~admission et d~évacuation d~écoulement basse pression dans les passages d~écoulement et d~admission et d~évacuation d~écoulement haute pression dans les passages d~écoulement. Le dispositif peut être utilisé pour le transfert de copeaux de bois en solution basse pression passés à la vapeur dans un lessiveur haute pression.

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