Voith Paper Patent Gmbh

Voith Patent Gmbh

Jürgen Prössl

Alfred Bubik

Wolfgang Ruf

Hans Loser

Volker Schmidt-Rohr

Franz Stelzhammer

Joachim Henssler

Konstantin Fenkl

Mathias Schwaner

Markus Häussler

Thomas Rühl

Joachim Hennssler

Wofgang Ruf

Bernd GÜLDENBERG

Markus HÄUSSLER

Markus Häußler

A sheet-forming system includes a separating wedge with a separating wedge protrusion in a range of 0.05 to 3.0 of the largest single gap width of at least two nozzle chambers. The separating wedge includes two separating wedge areas, each having one separating wedge angle, an upstream separating wedge starting area and a downstream separating wedge ending area. The two separating wedge angles assume different angles. The separating wedge starting angle of the upstream separating wedge initial area assumes a greater angle than the separating wedge ending angle of the downstream separating wedge end area. At least one separating wedge surface is a nonplanar transitional area between the two separating wedge areas. The fibrous material suspension free jet formed from at least two fibrous material suspension streams has a free jet length of 100 to 500 mm. The forming roll has a diameter of 1,200 to 2,500 mm.

Sheet forming system for a machine for producing a multilayer fibrous web

Twin-wire former for producing a fibrous web. The former includes two endless wire belts arranged to form a twin-wire zone, a dewatering element, and a headbox positioned at an angle relative to an imaginary first horizontal plane. The twin-wire zone includes a first section in which the two wire belts are arranged to run over the dewatering element. The two wire belts are further positioned to form a wedge-like inlet gap that is structured and arranged to receive a fibrous stock suspension directly from the headbox. Additional dewatering elements are utilized. The twin-wire zone includes a second section in which the two wire belts along with the fibrous web formed between the two wire belts are arranged to run downward over the additional dewatering elements. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Twin wire former

The invention relates to a twin wire former () for producing a fibrous web (), in particular a paper, cardboard or tissue web, from a fibrous suspension according to the generic terms of claim 1. The twin wire former () is characterized in that, the two wire belts () run upwards after a passing a first deviation device (), forming an angle (&#x3b2;) relative to an imaginary second horizontal plane (H), in such a way that the upper vertex (.SO) of the second deviation device () lies above the lower vertex (.SU) of the first deviation device (), and that the angle (&#x3b4;) relative to the imaginary first plane (H) runs downwards.

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Horgenzell, Germany

Jürgen Prössl