D - Textiles – Paper – 21 – D
Patent
D - Textiles, Paper
21
D
D21D 5/02 (2006.01)
Patent
CA 2395188
The present invention relates to an arrangement and a rotor for screening of pulp. The arrangement and rotor according to the invention are especially suitable for the screening of chemical and mechanical pulps, i.e. fiber suspensions of the wood processing industry. A characteristic feature of the arrangement and rotor according to the invention is that inside the rotor (16) there is arranged at least one dilution liquid chamber (24', 24", 24"') restricted by a surface of the rotor (16), which surface is provided with means for connecting said at least one chamber (24', 24", 24"') with the screening space defined between the rotor and the screen drum in such a way that dilution liquid from said at least one chamber (24', 24", 24"') is brought into the screening space at a distance of at least 20 mm from the inner surface of the screen drum (14).
La présente invention concerne un dispositif et un rotor destinés au criblage de pulpes. Selon l'invention, le dispositif et le rotor sont spécialement adaptés au criblage de pulpes mécaniques et chimiques, c'est-à-dire de suspensions de fibres de l'industrie du traitement du bois. Un trait caractéristique du dispositif et du rotor décrits par l'invention consiste en ce qu'à l'intérieur du rotor (16) est disposée au moins une chambre de liquide de dilution (24', 24'', 24''') limitée par une surface du rotor (16), ladite surface étant pourvue d'un dispositif d'ouverture d'un raccordement de liquide de dilution allant d'une des chambres (24', 24'', 24''') à un espace de criblage à une distance d'au moins 20 mm de la surface interne du tambour de criblage (14).
Harkonen Pasi
Karppinen Pekka
Kohonen Raimo
Pelkio Ari
Rahkonen Kader
Andritz Oy
Gowling Lafleur Henderson Llp
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