B - Operations – Transporting – 02 – C
Patent
B - Operations, Transporting
02
C
B02C 7/12 (2006.01) B02C 7/02 (2006.01) D21B 1/12 (2006.01) D21B 1/14 (2006.01) D21D 1/30 (2006.01)
Patent
CA 2438653
A pair of opposed co-operating refining elements (1, 2) intended for a disc refiner for the disintegration and refining of lignocellulosic material in a refining gap between two opposed counter-rotating refining discs. The refining elements are intended to be placed directly in front of each other on opposed refining discs, and both refining elements (1, 2) are formed with refining surfaces with bars (3, 4) and grooves (5, 6). In order to prevent generated steam from flowing rearward in the refining gap, a first refining element (1), which is intended for a rotary refining disc, is formed with a first radially restricted zone (7) with elevated bars (8) and a second radially restricted zone (9) without bars directly outside the first zone (7). A second opposed refining element (2) is formed with a third radially restricted zone (10) without bars, which third zone (10) is located directly in front of the first and the second zone (7, 9) on the first refining element (1).
La présente invention concerne une paire d'éléments de raffinage coopérants opposés (1, 2) destinés à un raffineur à disque qui désintègre et raffine une matière lignocellulosique dans un espace de raffinage entre deux disques de raffinage contrarotatifs opposés. Les éléments de raffinage (1, 2) sont destinés à être placés directement l'un en face de l'autre sur les disques de raffinage opposés, et ils comportent tous deux des surfaces de raffinage munies de barres (3,4) et de rainures (5,6). Afin d'empêcher la vapeur produite de s'échapper vers l'arrière dans l'espace de raffinage, un premier élément de raffinage (1), qui est destiné à un disque de raffinage rotatif, possède une première zone radialement restreinte (7) munie de barres surélevées (8) et, directement à l'extérieur de la première zone (7), une seconde zone radialement restreinte (9) dépourvue de barres. Un deuxième élément de raffinage opposé (2) possède une troisième zone radialement restreinte (10) dépourvue de barres, qui est placée directement en face de la première (7) et de la seconde zone (9) du premier élément de raffinage (1).
Fetherstonhaugh & Co.
Metso Paper Inc.
LandOfFree
A pair of opposed co-operating refining elements does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with A pair of opposed co-operating refining elements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A pair of opposed co-operating refining elements will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1529147