Apparatus and method in the treatment of the stock passed to...

D - Textiles – Paper – 21 – F

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Details

D21F 1/66 (2006.01) D21D 5/24 (2006.01) D21F 1/68 (2006.01)

Patent

CA 2512222

The invention relates to an apparatus in the treatment of the stock passed to a headbox of a paper machine or equivalent, in which the apparatus includes at least two stock chests (10a1, 10a2). The stock (M1) from a first stock chest (10a1) is passed along a line (a1, a2) to a hydrococyclone plant (20) in the short circulation of the paper machine or equivalent. An accept line (a3) of the hydrocyclone plant is connected with a stock line (b1) of the stock (M2) fed from a second stock chest (10a2), and a combined stock flow is passed along a line (b2) to the headbox (100) of the paper machine or equivalent. The invention also relates to a method in the treatment of the stock passed to a headbox of a paper machine or equivalent.

L'invention se rapporte à un appareil mis en oeuvre dans le traitement de la pâte transférée jusqu'à une caisse d'arrivée d'une machine de fabrication du papier ou analogue, ledit appareil comportant au moins deux cuviers de pâte (10a¿1?, 10a¿2?). La pâte (M¿1?) provenant du premier cuvier de pâte (10a¿1?) est transférée le long d'une ligne (a¿1?, a¿2?) jusqu'à un équipement à hydrocyclone (20) situé dans le circuit de circulation court de la machine de fabrication du papier ou analogue. Une ligne réceptrice (a¿3?) de l'équipement à l'hydrocyclone est raccordée à une ligne de pâte (b¿1?) de la pâte (M¿2?) provenant d'un second cuvier de pâte (10a¿2?), et un flux de pâte combiné est transféré le long d'une ligne (b¿2?) jusqu'à la caisse d'arrivée (100) de la machine de fabrication du papier ou analogue. L'invention se rapport également à un procédé mis en oeuvre dans le traitement de la pâte transférée vers une caisse d'arrivée d'une machine de fabrication du papier ou analogue.

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