Apparatus for treating fiber suspension

D - Textiles – Paper – 21 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

D21D 5/02 (2006.01) B01D 29/11 (2006.01) B01D 36/04 (2006.01)

Patent

CA 2118410

The present invention relates to an apparatus for treating fiber suspension. Theapparatus in accordance with the present invention is especially suitable for screening pulps and also for thickening. More accurately, the apparatus relates to the pulse member construction of the screen or thickener being used. It is characteristic of all pulse members in accordance with the prior art that when the capacity of the screening apparatus in increased, for example, by using greater pressure differences or the cleanliness of the accept is increased by decreasing the size of the perforations or slots, this results in a situation, in which the screen cylinder tends to clog. The problem is thus keeping the screen cylinder clean, which is a precondition for optimizing other features in the screening. The present invention relates to a pulse member (P) of the screening apparatus, which is characterized in that the screen surface is subjected thereby with members (60) to a pulse cleaning the screen surface without a chance to allow the pressure effect "escape" past the area being cleaned. It is also typical of the pulse member in accordance with the present invention that the higher the consistency of the fiber matting is or the worse the screen surface is clogged, the stronger the pulse cleaning the screen surface is.

ppareil pour traiter les fibres en suspension. L'appareil de la présente invention convient surtout au classage et à l'épaississement des pâtes. De façon plus précise, l'appareil se rapporte à la construction de l'élément d'impulsion du tamis ou de l'agent épaississant utilisé. Il est caractéristique de tous les éléments d'impulsion que lorsque la capacité de l'appareil de classage est augmentée, par exemple, en utilisant des différences de pression plus élevées ou que la propreté de l'appareil est augmentée par la réduction de la taille des ouvertures ou fentes, il en résulte une situation dans laquelle le cylindre du tamis est porté à se colmater. Le problème est donc de garder propre le cylindre du tamis, ce qui représente une condition préalable à la maximalisation d'autres éléments du classage. La présente invention se rapporte à un élément d'impulsion (P) de l'appareil de classage caractérisé par une surface du tamis qui est soumise par des éléments (60) à une impulsion nettoyant la surface du tamis sans risque de permettre à l'effet de pression de déborder au delà de la surface qui est nettoyée. Il est aussi propre à l'élément d'impulsion de la présente invention que plus la consistance du feutrage des fibres est élevée ou plus la surface du tamis est colmatée, plus l'impulsion nettoyant le tamis est forte.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Apparatus for treating fiber suspension does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for treating fiber suspension, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for treating fiber suspension will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1566361

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.