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, whereinsaid at least one feeding wing is an elongated protrusion extending between a first end and a second end, said second end of said at least one feeding wing being arranged further away from a center of the center plate than said first end of said at least one feeding wing, and said second end of said at least one feeding wing being displaced relative to said first end of said at least one feeding wing in a direction opposite to a direction of rotation of the rotor and the center plate, whereinsaid surface is provided with at least one counter-feeding wing for directing a steam flowing along said surface towards the center of the center plate,wherein said at least one counter-feeding wing is an elongated protrusion extending between a first end and a second end, said second end of said at least one counter-feeding wing being arranged further away from the center of the center plate than said first end of said at least one counter-feeding wing and closer to the center of the center plate than said first end of said at least one feeding wing, and said second end of said at least one counter-feeding wing being displaced relative to said first end of said at least one counter-feeding wing in a same direction as the direction of rotation, for directing steam to flow along said at least one counter-feeding wing in a direction having a component directed towards the center of the center plate, 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. The 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 also is displaced relative to the first end in a direction opposite to a direction of rotation of the rotor. The center plate is also provided with at least one counter-feeding wing for directing steam flowing along the surface towards the center of the center plate. The counter-feeding wing is an elongated protrusion arranged such that a second end of the counter-feeding wing is arranged further away from the center of the center plate than a first end and closer to the center of the center plate than the first end.
6 Citations
22 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, wherein
said at least one feeding wing is an elongated protrusion extending between a first end and a second end, said second end of said at least one feeding wing being arranged further away from a center of the center plate than said first end of said at least one feeding wing, and said second end of said at least one feeding wing being displaced relative to said first end of said at least one feeding wing in a direction opposite to a direction of rotation of the rotor and the center plate, wherein said surface is provided with at least one counter-feeding wing for directing a steam flowing along said surface towards the center of the center plate, wherein said at least one counter-feeding wing is an elongated protrusion extending between a first end and a second end, said second end of said at least one counter-feeding wing being arranged further away from the center of the center plate than said first end of said at least one counter-feeding wing and closer to the center of the center plate than said first end of said at least one feeding wing, and said second end of said at least one counter-feeding wing being displaced relative to said first end of said at least one counter-feeding wing in a same direction as the direction of rotation, for directing steam to flow along said at least one counter-feeding wing in a direction having a component directed towards the center of the center plate, when the center plate is rotating in the direction of rotation.
Specification