MACHINE AND METHOD FOR PRODUCING RAW CORRUGATED BOARD WEB

• Main Authors: RUHL THOMAS, HARMS MARC
• Format: Patent
• Language: Chinese; English
• Published: 26.03.2021
• Subjects: METHODS OF PRODUCING PAPER THEREON; PAPER-MAKING; PAPER-MAKING MACHINES; PRODUCTION OF CELLULOSE; TEXTILES

The invention relates to a machine (1) for producing an at least single-ply, in particular multi-ply and/or multi-layered raw corrugated board web (3), said machine having at least a headbox (4) and ascreening section (10) for forming the raw corrugated board web (3), a pressing section (20) for further dewatering the raw corrugated board web (3), and a dry end (30) having at least one single-rowdrying assembly (31.1, 31.2, 33.1, 33.2) for drying the raw corrugated board web (3), and a rolling-up section (40) for rolling up the raw corrugated board web (3). The pressing section (20) comprises a compact press having at least two last press nips (21.1, 21.2), upstream of which a further press nip (22.1) is arranged, which is formed by a first pressing element (21.3) and a counter roller (22). The machine (1) according to the invention is characterised in that the counter roller (22) is in the form of a shoe roller which has a press shoe (23) for forming the further press nip (22.1), and the further press nip (2