Refiner plates having steam channels and method for...

Details Refiner plates having steam channels and method for... Refiner plates having steam channels and method for...

2008-05-05

2011-10-04

Miller, Bena (Department: 3725)

Solid material comminution or disintegration

Apparatus

Cooperating comminuting surfaces

C241S261300, C241S296000

Reexamination Certificate

active

08028945

ABSTRACT:
A refining plate for refining lignocellulosic material including: a radially outer peripheral edge and a substrate surface; a refining zone having a plurality of substantially radially disposed bars and grooves between the bars, wherein the bars protrude upward from the substrate surface and the grooves each have a groove width, and a steam channel traversing the bars and grooves of the refining zone, wherein the steam channel has a radially outer end radially inward of the outer peripheral edge of the plate and the steam channel has a width substantially greater than the groove width.

REFERENCES:
patent: 4676440 (1987-06-01), Perkola
patent: 5863000 (1999-01-01), Gingras
patent: 2006/0006265 (2006-01-01), Sabourin et al.

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