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1. WO1996005911 - REFINING ELEMENTS

Publication Number WO/1996/005911
Publication Date 29.02.1996
International Application No. PCT/SE1995/000780
International Filing Date 26.06.1995
Chapter 2 Demand Filed 18.12.1995
IPC
B02C 7/12 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
7Crushing or disintegrating by disc mills
11Details
12Shape or construction of discs
D21D 1/30 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
DTREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
1Methods of beating or refining; Beaters of the Hollander type
20Methods of refining
30Disc mills
CPC
B02C 7/12
BPERFORMING OPERATIONS; TRANSPORTING
02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
7Crushing or disintegrating by disc mills
11Details
12Shape or construction of discs
D21D 1/306
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
DTREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
1Methods of beating or refining; Beaters of the Hollander type
20Methods of refining
30Disc mills
306Discs
Applicants
  • SUNDS DEFIBRATOR INDUSTRIES AB [SE/SE]; S-851 94 Sundsvall, SE (AllExceptUS)
  • VIRVING, Nils [SE/SE]; SE (UsOnly)
Inventors
  • VIRVING, Nils; SE
Agents
  • SUNDQVIST, Hans; Sunds Defibrator Industries AB Strandbergsgatan 61 S-112 51 Stockholm, SE
Priority Data
9402747-118.08.1994SE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) REFINING ELEMENTS
(FR) ELEMENTS DE RAFFINAGE
Abstract
(EN)
A pair of co-operating refining elements intended for use in a disc refiner for the disintegration and refining of lignocellulosic material in a refining gap between two opposed refining discs rotating relative to each other. The refining elements are intended to be positioned directly in front of each other on opposed refining discs. Both refining elements are formed with bars and grooves arranged in a number of restricted zones located radially outside each other, where each refining element comprises at least three zones (A, B, C). The bars in opposed inner zones (A) on the refining elements are angled 10-30° in different direction in relation to the radius of the refining elements, so that the bars on opposed refining elements cross each other. The bars in an intermidate zone (B) on both refining elements form an angle smaller than 15°, preferably smaller than 10°, with the radius. The bars in an opposed outer zone (C9) on the refining elements form an angle with the radius in the interval 10-30° in the same direction.
(FR)
Une paire d'éléments de raffinage coopérants, destinés à un raffineur à disques pour la désintégration et le raffinage de matière lignocellulosique dans un interstice de raffinage compris entre deux disques de raffinage opposés en rotation l'un par rapport à l'autre. Les éléments de raffinage doivent être positionnés directement en face l'un de l'autre sur des disques de raffinage opposés. Ils sont formés tous deux de barres et de gorges disposées dans un certain nombre de zones restreintes situées à l'extérieur les unes des autres dans le sens radial, chaque élément de raffinage comprenant au moins trois zones (A, B, C). Les barres des zones intérieures (A) opposées des éléments de raffinage forment avec le rayon des éléments de raffinage un angle de 10 à 30° dans des directions différentes, de sorte que les barres des éléments de raffinage opposés se croisent. Les barres de la zone intermédiaire (B) des deux éléments de raffinement forment avec le rayon un angle inférieur 0 15°, de préférence inférieur à 10°. Les barres d'une zone extérieure opposée (C) des éléments de raffinage forment avec le rayon un angle de l'ordre de 10 à 30° dans la même direction.
Also published as
FI970658
NO19970729
NZ290214
Latest bibliographic data on file with the International Bureau