B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
B01F 7/00 (2006.01) B01F 5/00 (2006.01) B01F 15/02 (2006.01)
Patent
CA 2163632
A mixer for fluffing and mixing pulp with treatment additives includes a disc rotor, an annular stator, a pulp feed channel, a ribbon feeder and a baffle, the axially rotating disc rotor including a shaft and a grinding segment. The stator includes a grinder segment, which opposes the rotor-grinding segment. The feed channel is co-axial with the rotor axis, and has a discharge end, which confronts they rotor and has an inlet end for receiving pulp. The ribbon feeder is co-axially disposed within the feed channel, and includes a hollow axially rotating shaft. The feeder discharges pulp at the rotor towards the mixing and fluffing zone. The baffle is carried on the feeder shaft and guides the pulp toward the fluffing and mixing zone. Treatment additives are introduced as the pulp moves toward the discharge end of the channel.
L'invention concerne un mélangeur, notamment un mélangeur à grand rendement permettant d'affiner des matières prébroyées et de les mélanger avec des substances de traitement et/ou avec des additifs, notamment des substances chimiques de blanchiment. Ce mélangeur comprend une zone annulaire de mélange et d'affinage, formée entre un rotor en forme de disque (7) et un stator (5) annulaire, et un canal central d'alimentation des matières (17). Ce mélangeur se caractérise en ce qu'un dispositif d'alimentation forcée, qui se présente sous forme de vis à bande (2, 3, 4) et qui est destiné à acheminer les matières prébroyées jusqu'à la zone de mélange et d'affinage, est prévu dans le canal d'alimentation des matières.
Kappel Johannes
Sbaschnigg Johann
Andritz-Patentverwaltungs-Gesellschaft M.b.h.
Marks & Clerk
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