Process for conditioning a circulating felt belt

US6716316B2 · kind B2 · utility

Assignee

• Voith Paper Patent GmbH · DE

Inventors

• Joachim Grabscheid · Gerstetten, DE
• Ulrich Begemann · Leonberg, DE
• Oswald Satzger · Giengen an der Brenz, DE
• Wolfgang Mayer · Chieming, DE
• Ralf Rziha · Gerstetten, DE
• Wolfgang Bamberger · Gerlingen, DE
• Georg Kleiser · Schwäbisch Gmünd, DE
• Thomas Rühl · Wernau, DE

Key dates

• Filing date: Dec 31, 2001
• Grant date: Apr 6, 2004
• Expiry date: Dec 31, 2021

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21F1/325
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

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.