Device and method for drying fibrous material
AssigneeAndritz Inc.
InventorsFranz Petschauer, Stefan Hansen, Klaus Poeschl
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Abstract
A method for dewatering a fibrous material web, wherein fibrous material is applied via a headbox on at least one wire and is subsequently dewatered in order to form a fibrous material web. Following the wire section, the resulting fibrous material web is dewatered by several presses, wherein the first press through which the fibrous material web is guided following the headbox is equipped with a double nip. The first press is formed by a wire roll and two couch rolls which are each pressed against the wire roll for forming a nip. Also disclosed is a corresponding device for carrying out the method.
Claims10
A method for dewatering a fibrous web, fibrous material for the formation of a fibrous web being introduced via a headbox between two wires and being dewatered, and, following the wire section, the fibrous web which is produced being guided through a plurality of presses and being dewatered, wherein the first press, through which the fibrous web is guided after the headbox, is equipped with a double nip, the first press is formed here by a wire roll and by two couch rolls which are in each case pressed against the wire roll in order to form a nip, the wire roll being wrapped around by a wire and the couch rolls being wrapped around in each case by a felt.
A device for dewatering a fibrous web with a headbox and a wire section comprising two wires, at least one first press, through which the fibrous web is guided, being arranged downstream of the wire section, wherein the first press is equipped with a double nip, the first press being formed by a wire roll and by two couch rolls which are in each case pressed against the wire roll in order to form a nip, the wire roll being wrapped around by a wire and the couch rolls being wrapped around in each case by a felt.
Dependencies are inferred from the claim text.