Refiner rotor assembly with a hub having flow-through ports

Details Refiner rotor assembly with a hub having flow-through ports Refiner rotor assembly with a hub having flow-through ports

2007-03-13

2007-03-13

Banks, Derris H. (Department: 3725)

Solid material comminution or disintegration

Apparatus

Cooperating comminuting surfaces

C241S248000, C241S261100, C241S261300

Reexamination Certificate

active

10392478

ABSTRACT:
A refiner including a material-admitting inlet and an outlet; and spaced apart first and second refining discs mounted in the chamber. The refiner further includes a rotary third ref refining disc disposed between the first and second discs. A first path for the movement of material from the inlet is defined between the first and third refining disks. A second path for the movement of material to the outlet is defined between the second and third refining disks. The refiner further includes a shaft extending through a central opening provided in the first disc, and a hub rigid with the shaft and having a center, the hub being received in the third refining disc central opening. The hub has at least one port in the hub from the first path to the second path and between the third refining disc central opening and the center of the hub.

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