US 11,555,273 B2Granted

Flow-altering refiner segment

AssigneeAndritz Inc.

InventorsLuc Gingras, Tom Berger, Yves Raymond, Long Nguyen

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Abstract

Refiner plate elements for a conical mechanical refiner include: a rotor plate element including at least one rotor plate segment having a feedstock inlet opening disposed at a first end of the rotor plate segment; and a rotor plate segment refining area disposed between the feedstock inlet opening and a second end of the rotor plate segment. The refiner plate elements may further include: a stator plate element including at least one stator plate segment having a stator plate segment refining area; and first and second attaching rails configured to couple to the stator plate segment to a stator support frame of the conical mechanical refiner. A separation between the first attaching rail and the second attaching rail that is not covered by the stator plate segment is configured to form a feedstock outlet opening.

Claims11

Dependent claims

A plurality of refiner plate elements for a conical mechanical refiner, the refiner plate elements comprising:

a rotor plate element comprising:
at least one rotor plate segment comprising:
at least one feedstock inlet opening disposed at a first end of the at least one rotor plate segment;
and
a rotor plate segment refining area disposed between the at least one feedstock inlet opening and a second end of the at least one rotor plate segment;
and
a stator plate element comprising:
at least one stator plate segment having a stator plate segment refining area;
a first attaching rail configured to couple to the at least one stator plate segment at a first edge portion of the at least one stator plate segment;
and
a second attaching rail configured to couple to the at least one stator plate segment at a second edge portion of the at least one stator plate segment opposite the first edge portion,
wherein the first attaching rail and the second attaching rail are configured to attach the at least one stator plate segment to a stator support frame of the conical mechanical refiner, and
wherein a separation between the first attaching rail and the second attaching rail that is not covered by the at least one stator plate segment is configured to form at least one feedstock outlet opening.

10 more elements

Dependencies are inferred from the claim text.