Arrangement for the treatment of cellulose pulp in a washing...

D - Textiles – Paper – 21 – C

Patent

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D21C 9/06 (2006.01)

Patent

CA 2609095

A washing arrangement for washing and dewatering cellulose pulp, comprising a rotary drum (1) with a plurality of external compartments on the drum for the pulp to be washed, which compartments are defined by axial compartment walls distributed along the circumference of the drum, a stationary cylindric casing enclosing the drum, whereby a ring-shaped space is defined between the casing and the drum, and where the ring-shaped space by means of longitudinal seals in axial direction of the drum is divided into a forming zone for forming the pulp in the compartments of the drum, at least one washing zone for washing the pulp and a discharge zone for feeding out the washed pulp where the casing (6) is provided with longitudinal through openings (7) in axial direction for each longitudinal seal (11), in which the longitudinal seals are placed so that the seal (11) can be removed from the washing arrangement in a direction outward from the drum centre.

L'invention concerne un ensemble de nettoyage destiné à nettoyer et déshydrater de la pâte cellulosique, lequel comprend un tambour rotatif (1) avec plusieurs compartiments extérieurs situés sur le tambour pour nettoyer la pâte, ces compartiments étant définis par des parois de compartiment axiales réparties le long de la circonférence du tambour, un boîtier cylindrique fixe entourant le tambour, un espace en forme d'anneau étant défini entre le boîtier et le tambour, et cet espace en forme d'anneau au moyen de joints longitudinaux en direction axiale du tambour étant divisé en une zone de formation destinée à former la pâte dans les compartiments du tambour, au moins une zone de nettoyage pour nettoyer la pâte et une zone d'évacuation pour évacuer la pâte nettoyée. Le boîtier (6) possède des ouvertures traversantes longitudinales (7) en direction axiale pour chaque joint longitudinal (11), les joints longitudinaux étant placés de façon que le joint (11) puisse être éliminé de l'ensemble de nettoyage dans une direction extérieure par rapport au centre du tambour.

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