Metso Paper Inc.

Markku Salo

Markku Lummila

Timo Pirinen

Risto Haiko

Erkki Hietamäki

Esa Rajala

Mikko Kauppinen

Sampo Vörgren

Reijo Koivuranta

Erikki Autio

Kauno Kujala

Pekka Petrilä

A dewatering arrangement in the press section of a web-forming machine having a press suction roll () and a press fabric () arranged to run via the press suction roll (). The dewatering arrangement has a saveall (), which is installed in conjunction with the press suction roll (), and drainage facilities () for removing the collected water from the saveall (). The saveall () has a concave guide surface () which in the cross direction is located on a partial distance of the circumference of the press suction roll () and at a distance from the surface of the press suction roll () in order to accomplish a vacuum effect and to hence remove water from the press suction roll ().

Dewatering arrangement on the press section of a web-forming machine

The invention relates to an arrangement for feeding a treatment substance to an application device used to treat a moving paper or board web, which arrangement includes at least one application chamber ( ) extending over the width of the web, to which the treatment substance can be fed. The treatment substance feed devices include at least one elongated feed chamber ( ) extending over the width of the application device, to which treatment substance can be fed from the inlet side ( ) of the chamber ( ), and at least one connection ( ) for leading the treatment substance from the feed chamber to the application chamber ( ). For feeding the treatment substance between the feed chambers, there is at least one flow route to connect the end ( ) of the feed chamber ( ) opposite the inlet side ( ) and the end of the application device on the side of the inlet side of the first feed chamber ( ), through the flow route.

Apparatus for feeding a treatment substance to an application device

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Laukaa, Finland

Markku Salo