Voith Paper Patent Gmbh

Voith Patent Gmbh

Georg Kleiser

Ulrich Begemann

Joachim Grabscheid

Klaus Hermann

Wolfgang Mayer

Oswald Satzger

Daniel Gronych

Thomas Augscheller

Robert Koplin

Ralf Rziha

Joerg Reuter

Thomas R&uuml;hl

Hai-Van Nguyen

Wolfgang Bamberger

Roland Mayer

Arved H Westerkamp

Ingolf Cedra

Florian Wegmann

Hermann Sorg

Christoph Strempfl

Cordula Mraz

Torben Schlieckau

Paper machine for producing paper that can be gravure printed from a fibrous stock suspension, and a related method. The paper machine includes a pressing section having at least one press nip, an impingement dryer arranged immediately after the pressing section, and an applicator. The applicator applies a coating color in the manner of at least one of a curtain application, a film application, or a spraying application.

Paper machine

The invention relates to a paper machine for producing paper that can be gravure printed from a fibrous stock suspension, and a related method. The paper machine includes a wire section, a pressing section, a drying section, and a winding section for winding the produced paper on a paper roll. Additionally, the paper machine includes a film press having a film roll for applying a coating color and a calender arranged downstream of the film press.

This invention relates to a machine for the production of a paper web, paperboard web or tissue web, having a roller with a circumferential surface and having an endless belt, in particular a transfer belt, which is wrapped around the circumferential surface of the roller in sections and has a bottom side which in the wrap zone can be brought into contact with the circumferential surface, as the result of which the endless belt and/or the roller provide a storage capacity suitable for accommodating at least in part the fluid which gets into the wrap zone between the bottom side and the circumferential surface.

Transfer belt

An apparatus for treating a fibrous web, in particular a paper, board or tissue web including a press section and a drying section. The press section includes a central roll around which an at least substantially impermeable belt wraps, the fibrous web being removed from this impermeable belt and fed to the drying section. In this case, as viewed in the web running direction, the first drying group of the drying section includes at most three drying cylinders. In the exit region of the first drying cylinder of the first drying group, in which the fibrous web runs off the drying cylinder together with a permeable circulating belt or is removed from the drying cylinder by such a permeable circulating belt, a removal zone to which vacuum is applied is provided on the side of the permeable circulating belt that faces away from the fibrous web.

Apparatus for dewatering a fibrous web

A system for computer assisted monitoring of a cross profile of a quality parameter of a material web, especially a paper or cardboard web during its production and/or conversion, which includes a measuring system for measuring the cross profile, at least one computer based operations and logic unit for the determination of the standard deviations of at least two interference profiles that are representative for different interferences in the form of different peak groups in the measured cross profile. The different peak groups differentiate in that their peaks have different width ranges. Elements for storage, display and/or further processing of the determined standard deviations are also included.

System for computer assisted monitoring of a cross profile of a quality parameter in a material web

Press section and process for dewatering a fibrous material web that includes a plurality of rolls arranged to form at least three nips and at least one endlessly circulating dewatering belt associated with each nip. Each at least one endlessly circulating dewatering belt is structured and arranged to guide the fibrous material web through its respective nip and to receive water squeezed out of the fibrous material web in the respective nip. The plurality of rolls include at least one press roll having a smooth surface arranged to contact a surface of the fibrous material web and an endlessly circulating, smooth transfer belt is structured and arranged to contact a surface of the fibrous material web opposite the surface contacting the smooth surface of the at least one press roll and to support the fibrous material web through at least one of the at least three nips.

Press section

Process for conditioning a circulating felt belt of a machine, pipe suction apparatus and traversing pipe suction apparatus therefor, the process including performing a zonal conditioning of a plurality of zones across a width of the felt belt by measuring at least one of, fibrous material web cross direction profile; felt belt cross direction profile; and permeability of the felt belt across the width of at least one of the web and the belt. The felt belt is conditioned depending on measuring results obtained for a respective zone. The pipe suction apparatus includes a ceramic body extending at least essentially across the entire width of the felt belt, the ceramic body being provided with a slotted surface by way of which the felt belt is subjectable to vacuum, with a respective effective amount of slotted surface being zonally variably adjustable by way of movable tongues.

Process for conditioning a circulating felt belt

Process for determining disturbances of a moisture cross profile of a fibrous material web in a paper making machine, a paper making machine, and a measuring arrangement for measuring the disturbances, the process including guiding the fibrous material web by way of at least one water-permeable belt and collecting and draining off water released from the belt. The water is collected by several sections separated from one another. The process further includes measuring per time unit, the amount of water in each section, wherein the sections extend at right angles to a web running direction over only a partial section of the fibrous material web. The paper making machine includes at least one water-permeable belt, the belt being wrapped around a roll. The measuring arrangement includes a water collection device having the form of one of a trough or channel.

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Schwaebisch Gmuend, Germany

Georg Kleiser