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US 6,637,686 B2Granted
Refiner
AssigneeAndritz Inc.
InventorsPeter Antensteiner, Helmuth Gabl, Andreas Gorton-Hülgerth, Gerald Schadler
Life of this patent
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Abstract
A refiner including a rotor and a stator defining a cylindrical or conical refining gap therebetween. A pulp feed channel extends in a radial direction from an inlet pipe to the refining gap.
Claims13
A refiner for refining a flow of pulp comprising:
- a rotor rotatable about an axis;
- a stator, the rotor and stator defining a refining gap therebetween;
- an inlet pipe;
- a pulp feed channel radially extending from the inlet pipe to the refining gap;
- and
- a substantially circular disc disposed between the inlet pipe and the refining gap, the disc having oppositely disposed circumferentially extending inlet and outlet surfaces;
- wherein the inlet surface of the disc directs the flow of pulp radially inward toward the rotor and the outlet surface of the disc directs the flow of pulp radially outward into the refining gap around substantially the full circumference of the disc.
4 more elements
Dependencies are inferred from the claim text.