Serial drum apparatus and method for processing wet material

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 43/00 (2006.01) B01D 33/00 (2006.01) B01D 33/073 (2006.01) B01D 33/46 (2006.01) B31F 1/12 (2006.01) D21C 9/06 (2006.01) D21D 1/40 (2006.01) D21F 1/74 (2006.01)

Patent

CA 2415853

An apparatus for processing a solid-liquid material comprises a housing (13) formed with a series of interconnected chambers defined by chamber walls with at least two drums mounted in series within the chambers. Each chamber receives one of the at least two drums (12, 14) for rotatable movement therein. Each chamber and the associated drum are dimensioned to define a region therebetween to retain the solid-liquid material. The regions of adjacent chambers communicate with each other to define a continuous passage (25) from drum (12) to drum (14) through the apparatus. An inlet in the housing admits the solid-liquid material to the passage, and an outlet permits extraction of a processed solid-liquid material from the passage. Each drum (12, 14) rotates in a direction opposite to the adjacent drum to advance the solid-liquid material through the passage from drum to adjacent drum in a sinuous (25) path such that the curvature of the solid-liquid material changes when passing from drum to adjacent drum. The first drum of the at least two drums having a greater capacity for moving the solid-liquid material than subsequent drums so that the material tends to be compressed when being moved through the passage. Methods for processing the solid-liquid material using the apparatus are also disclosed including filtration, washing, expression of liquid, air drying and compression feeding.

L'invention concerne un appareil permettant de traiter un matériau solide-liquide, comprenant un logement (13) formé d'une série de chambres reliées entre elles, définies par des parois de chambre, deux tambours au moins étant montés en série dans lesdites chambres. Chaque chambre reçoit au moins l'un des deux tambours (12, 14) qui tourne dans celle-ci. Chaque chambre et son tambour sont dimensionnés de façon à définir entre eux une région qui retient le matériau solide-liquide. Les régions des chambres adjacentes communiquent entre elles de façon à définir un passage continu (25), de tambour (12) à tambour (14), à travers l'appareil. Une entrée du logement admet le matériau solide-liquide dans le passage, et une sortie permet l'extraction du matériau solide-liquide traité de ce passage. Chaque tambour (12, 14) tourne dans une direction opposée au tambour adjacent, de façon à faire progresser le matériau solide-liquide dans le passage, d'un tambour au tambour adjacent, dans un chemin sinueux (25), de sorte que l'incurvation du matériau solide-liquide se modifie lorsqu'il passe d'un tambour au tambour adjacent. Le premier des deux tambours présentant une capacité de déplacement du matériau solide-liquide supérieure à celle des tambours suivants, ledit matériau tend à être comprimé lorsqu'il se déplace à travers le passage. L'invention concerne également les procédés permettant de traiter le matériau solide-liquide au moyen de cet appareil, à savoir la filtration, le lavage, l'expression du liquide, le séchage de l'air et l'alimentation sous pression.

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