A long nip press

D - Textiles – Paper – 21 – F

Patent

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Details

D21F 3/02 (2006.01)

Patent

CA 2338244

A method of sealing the pressure chamber of a press comprising a roll and a concave counterpart provided with a nip pressure chamber and with a press belt by proportioning the edge radius of the pressure chamber and the radius of the path of the belt to the pressures acting under the belt. A pressure is generated under the press belt, outside the press chamber, with the aid of oil or gas, and a suitable lubrication leak is allowed from the pressure chamber by adjusting the pressure in the right proportion to the chamber pressure. The invention also includes an apparatus for carrying out the method.

L'invention concerne un procédé d'obturation hermétique d'une chambre de pression d'une presse comprenant un cylindre et une contre-partie concave munie d'une chambre de pression concave et d'une courroie à pression, consistant à proportionner le rayon du bord de la chambre de pression et le rayon du parcours de la courroie par rapport aux pressions s'exerçant sous la courroie. Une pression est générée sous la courroie à pression, à l'extérieur de la chambre de pression, au moyen d'huile ou de gaz, et une fuite de lubrifiant appropriée est admise à partir de la chambre de pression en ajustant la pression dans la proportion voulue par rapport à la pression de la chambre. L'invention concerne également un appareil pour la mise en oeuvre de ce procédé.

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Profile ID: LFCA-PAI-O-1971996

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