Refiner plate to prevent grooves plugging
AssigneeAndritz Inc.
InventorLuc Gingras
Life of this patent
Estimating the term…
Abstract
A refiner plate includes at least one refining zone including a first plurality of refining bars and a plurality of grooves. At least one groove of the plurality of grooves has a first width between adjacent refining bars of the first plurality of refining bars at an inlet of the at least one refining zone narrower than a second width along a remaining portion of the at least one groove. At least one of the adjacent refining bars of the first plurality of refining bars has a widened portion in a circumferential direction of the refiner plate at an inlet portion of the at least one refining zone.
Claims22
A refiner plate, comprising:
- at least one refining zone including a first plurality of refining bars and a plurality of grooves;
- at least one groove of the plurality of grooves having a first width between adjacent refining bars of the first plurality of refining bars at an inlet of the at least one refining zone narrower than a second width along a remaining portion of the at least one groove;
- and
- at least one of the adjacent refining bars of the first plurality of refining bars having a widened portion in a circumferential direction of the refiner plate at an inlet portion of the at least one refining zone.
A refiner plate, comprising:
- a plurality of refiner plate segments, each refiner plate segment having:
- at least one refining zone including a first plurality of refining bars and a plurality of grooves;
- at least one groove of the plurality of grooves having a first width between adjacent refining bars of the first plurality of refining bars at an inlet of the at least one refining zone narrower than a second width along a remaining portion of the at least one groove;
- and
- at least one of the adjacent refining bars of the first plurality of refining bars having a widened portion in a circumferential direction of the refiner plate at an inlet portion of the at least one refining zone.
Dependencies are inferred from the claim text.