Feeding center plate in a pulp or fiber refiner
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United States of America Patent
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Jan 12, 2021
Grant Date -
Aug 23, 2018
app pub date -
Oct 5, 2016
filing date -
Oct 8, 2015
priority date (Note) -
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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.
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