Apparatus for washing of pulp

D - Textiles – Paper – 21 – C

Patent

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Details

D21C 9/02 (2006.01) D21D 1/40 (2006.01)

Patent

CA 2182187

An apparatus for treating pulp with a treatment liquid, comprising a vessel (1) with a cylindrical wall (2), an internal straining member (3) for drawing off liquid from the pulp, together with a number of distribution pipes (5) on the outside of the vessel for supplying treatment liquid into the vessel via a number of inlet connections (6). According to the invention, each distribution pipe (5) is formed by an annular profile (20) and an opposite part (21) of the cylinder wail (2), the profile being welded firmly directly to the cylinder wall, and the profile and the cylinder wall part enclosing between them a distribution duct (22). Furthermore, each inlet connection (6) has an opening (23) which extends through the cylinder wall part and connects the distribution duct to the interior of the vessel.

L'invention concerne un appareil de traitement de la pâte à papier au moyen d'un liquide de traitement, comprenant un récipient (1) présentant une paroi cylindrique (2), un élément de filtrage interne (3) permettant d'extraire le liquide de la pâte à papier, ainsi que plusieurs conduites de distribution (5) situées à l'extérieur du récipient pour envoyer le liquide de traitement dans ce dernier par l'intermédiaire d'une pluralité de raccords d'entrée (6). Chaque conduite de distribution (5) est constituée d'un profilé annulaire (20) et d'une partie opposée (21) appartenant à la paroi cylindrique (2), le profilé annulaire étant solidement soudé directement sur la paroi cylindrique, et le profilé et la paroi cylindrique entourant une canalisation de distribution (22). Chaque raccord d'admission (6) présente une ouverture (23) s'étendant dans ladite partie de la paroi cylindrique et reliant la canalisation de distribution avec l'intérieur du récipient.

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