FEEDING CENTER PLATE IN A PULP OR FIBER REFINER
First Claim
1. A center plate for a rotor in a pulp or fiber refiner, said center plate having a surface provided with at least one feeding wing for directing lignocellulose-containing material flowing onto said surface towards a periphery of the center plate, wheresaid at least one feeding wing is an elongated protrusion extending between a first end and a second end, said second end being arranged further away from a center of the center plate than said first end, and said second end being displaced relative to said first end, in a direction opposite to a direction of rotation of the rotor and center plate, whereinsaid at least one feeding wing is provided with at least one opening allowing a steam to flow through said at least one opening in a direction having a component directed opposite to the direction of rotation, when the center plate is rotating in the direction of rotation.
1 Assignment
0 Petitions
Accused Products
Abstract
A center plate for a rotor in a pulp refiner has a surface provided with at least one feeding wing for directing lignocellulose-containing material towards a periphery of the center plate. The at least one feeding wing is an elongated protrusion arranged such that its second end is arranged further away from a center of the center plate than a first end and is also displaced relative to the first end in a direction opposite to a direction of rotation of the rotor. The at least one feeding wing includes at least one opening allowing steam to flow through the opening in a direction having a component directed opposite to the direction of rotation.
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Citations
17 Claims
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1. A center plate for a rotor in a pulp or fiber refiner, said center plate having a surface provided with at least one feeding wing for directing lignocellulose-containing material flowing onto said surface towards a periphery of the center plate, where
said at least one feeding wing is an elongated protrusion extending between a first end and a second end, said second end being arranged further away from a center of the center plate than said first end, and said second end being displaced relative to said first end, in a direction opposite to a direction of rotation of the rotor and center plate, wherein said at least one feeding wing is provided with at least one opening allowing a steam to flow through said at least one opening in a direction having a component directed opposite to the direction of rotation, when the center plate is rotating in the direction of rotation.
Specification