Flinger apparatus for a counter-rotating refiner
AssigneeAndritz Inc.
InventorsLuc Gingras, Marc Berger
Life of this patent
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Abstract
This disclosure relates to an apparatus for a counter-rotating mechanical refiner configured to mitigate the problems of feeding variations, load variations, high energy consumption due to poor feeding efficiency, low pulp quality, and reduced throughput capacity by positioning a flinger proximate to a rotor gap side of a first rotor, wherein the first rotor further comprises an inlet extending through the first rotor, such that a portion of the operational flinger deflects feed material from the inlet into the refiner gap while rotating in the direction of the first rotor.
Claims20
A feed rotor assembly comprising:
- a rotor configured to rotate in a first rotational direction, the rotor having:
- an upstream side comprising a feedstock inlet;
- a rotor gap side distally disposed from the upstream side, wherein the rotor gap side faces a refining gap,
- wherein the feedstock inlet extends through the rotor,
- wherein the feedstock inlet has an inlet gap end, and
- wherein the feedstock inlet fluidly communicates with the rotor gap side at the inlet gap end;
- and
- a flinger disposed at the rotor gap side, wherein the flinger rotates in the first rotational direction with the rotor, and wherein the flinger has a portion disposed adjacent to the inlet gap end such that the portion is configured to obstruct the inlet gap end.
A counter-rotating refiner assembly comprising:
- a feed rotor assembly having:
- a first rotor configured to rotate in a first rotational direction, the first rotor having:
- an upstream side comprising a feedstock inlet;
- a rotor gap side distally disposed from the upstream side, wherein the rotor gap side faces a refining gap,
- wherein the feedstock inlet extends through the first rotor, wherein the feedstock inlet has an inlet gap end, and wherein the feedstock inlet fluidly communicates with the rotor gap side, and
- a flinger disposed at the rotor gap side, wherein the flinger rotates in the first rotational direction with the first rotor, and wherein the flinger has a portion obstructing the inlet gap end;
- and
- a control rotor assembly having:
- a second rotor oppositely disposed from the feed rotor assembly, wherein the second rotor is configured to rotate in a second rotational direction, wherein the second rotational direction is an opposite direction to the first rotational direction of the first rotor.
Dependencies are inferred from the claim text.