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US 2003/0189117 A1Published application
Refining segment for a rotatable refining disc, and a refining apparatus comprising a refining disc with such refining segment
AssigneeValmet Fibertech AB
InventorNils Virving
Life of this patent
Estimating the term…
Abstract
The present invention relates to a refining segment (7; 17; 27; 37) for a rotatable refining disc included in refining apparatus, for disintegrating and refining material containing lignocellulose in a refining gap between two opposing refining discs (4, 5) rotatable in relation to each other. It is characterized in that it is provided with at least one cleaning member (10; 20; 30; 40) for clearing away material that has collected outside the outer edge of the refining disc. The invention also relates to refining apparatus provided with at least one such refining segment.
Claims12
A refining segment (7;
- 17;
- 27;
- 37) intended to constitute at least a part of a refining surface of a rotatable refining disc included In a refining apparatus for disintegrating and refining material containing lignocellulose in a refining gap between two opposing refining discs (4, 5) rotatable in relation to each other, and which segment Is a wear detail that is replaced at regular intervals characterized in that it is provided with at least one cleaning member (10;
- 20;
- 30;
- 40) arranged to prodrude from the periphery of the refining segment in a space between the outer edge of the refining segment and the inside of the refiner housing (3) in which the refining discs (4, 5) are arranged, for clearing away material that has collected outside the outer edge of the refining disc.
3 more elements
Dependencies are inferred from the claim text.