Voith Patent Gmbh

Armin Bauer

Martin Staiger

Thomas Gruber-Nadlinger

Herbert Britz

Rudolf Münch

Niels Hardt

Jürgen Käser

Alexander Wohlmuth

Jens Haag

Christian Naydowski

Günther Kriechbaum

Dietmar Üblacker

Armin Üblacker

A method regulating the formation of a fibrous web, such as a paper, cardboard, or tissue web, in which method the formation of the fibrous web is measured online as a controlled variable and is held at a predefinable setpoint level via automatic formation regulation. In addition to the formation, the charge concentration of the suspension is measured as a controlled variable and is taken into consideration during the formation regulation.

Method for regulating the formation of a fibrous web

A device for monitoring objects, in particular for monitoring industrial environments, such as paper mills and manufacturing and/or finishing processes of a paper, board or other fibrous web being carried out therein, includes a monitoring camera, the camera with its objective being arranged in a rotationally symmetrical protective housing rotating about an axis of rotation, and a protective housing to be mounted at its one end on a rigid hollow shaft and, at its coaxially opposite other end, to have a co-rotating blower pipe or merge into the latter, and for compressed air to be applied to the protective housing, including the blower pipe.

Monitoring device

This invention relates to a method for detecting a tear in a fibrous web in a drying section of a machine for producing the fibrous web, whereby the fibrous web is passed through the drying section by way of at least one dryer fabric, whereby the tear is detected by at least one optical web tear detection device, which includes at least one luminous source and one detector, and whereby a cut-off apparatus for the fibrous web is directly or indirectly activated by the web tear detection device. The optical web tear detection device is operated over an extended wave length range in order to detect a tear in the fibrous web reliably. In addition, the invention relates to an apparatus for performing the inventive method.

Method for detecting a fibrous web tear in a drying section of a machine for producing the fibrous web and apparatus for performing said method

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St. Pölten, Austria

Armin Bauer