A cyclone separator

B - Operations – Transporting – 04 – C

Patent

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Details

B04C 5/081 (2006.01) B04C 5/103 (2006.01) D21D 5/24 (2006.01)

Patent

CA 2136983

The present invention relates to a cyclone separator for separating substances from a fibre-liquid-suspension, particularly a paper clip suspension. The separator includes a main part (3) which has an inner, conical chamber (4) which is provided with an essentially tangentially directed inlet at the wider end (5) of the chamber. The chamber (3) tapers conically downwards and the inner surface of the chamber has a screw-like configuration. This screw-like configuration includes a first upper surface or flank (1) and a second.lower surface.or flank (2), wherein the flank (1) that faces towards the wider end of the chamber defines an angle a with the chamber centre line and the second flank (2) which faces towards the narrower end (6) of the chamber defines an angle T with the first flank (1). The second flank (2j and its extension form together with the first flank (1) of the nearest underlying helix of the screw-like configuration a triangle which has a line that extends through the apex of the nearest underlying part of the helix or helical screw-thread and which extends parallel with the,chamber centre line.

Séparateur à cyclone servant à séparer des substances d'une suspension liquide/fibres, notamment une suspension de pâte à papier. Le séparateur comprend un corps principal (3) possédant une chambre conique interne (4) dont l'extrémité évasée (5) est pourvue d'un orifice d'entrée orienté dans un sens essentiellement tangentiel. La chambre (3) a la forme d'un cône renversé et sa face intérieure a une configuration hélicoïdale comprenant une première face supérieure (1) et une seconde face inférieure (2). La face (1) tournée vers l'extrémité évasée de la chambre forme un angle (alpha) avec la ligne médiane de la chambre, et la seconde face (2) tournée vers l'extrémité étroite (6) de la chambre forme un angle (tau) avec la première face (1). La seconde face (2) et son prolongement forment, conjointement avec la première face (1) de l'hélice sous-jacente la plus proche de la configuration hélicoïdale, un triangle dont une ligne traverse le sommet de la partie sous-jacente la plus proche de l'hélice ou du filet hélicoïdal, et s'étend dans un sens parallèle à la ligne médiane de la chambre.

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