EP 2678471 B1 20180314 - PRESS SECTION OF A MACHINE FOR PRODUCING A FIBROUS WEB
Title (en)
PRESS SECTION OF A MACHINE FOR PRODUCING A FIBROUS WEB
Title (de)
PRESSENPARTIE EINER MASCHINE ZUR HERSTELLUNG EINER FASERSTOFFBAHN
Title (fr)
SECTION DE PRESSE D'UNE MACHINE À FABRIQUER UNE BANDE DE MATIÈRE FIBREUSE
Publication
Application
Priority
- DE 102011004565 A 20110223
- EP 2011069519 W 20111107
Abstract (en)
[origin: WO2012113467A1] The invention relates to a press section for dewatering in a machine for producing a fibrous web (1), in particular a paper, cardboard, or tissue web, comprising a shoe press nip (8) formed by a press roll (2) and a counter roll (3), wherein the press roll (2) has a circumferential flexible cylindrical surface, a supporting stationary yoke, a pressing element (4), and press-on devices, and wherein the press-on devices press the pressing element (4) against the cylindrical surface (7) and thus the cylindrical surface (7) against the counter roll (3), and wherein a collecting tray (20.1, 20.3, 20.4) is provided downstream of the shoe press nip (8) in the running direction of the web; the cylindrical surface (7) is grooved, wherein the length of the grooves in the circumferential direction is greater than the nip length (L), and a collecting tray (10.1, 10.2, 10.3, 10.4) is provided upstream of the shoe press nip (8) on the side of the press roll (2) so that a large amount of water sprays back from the shoe press nip in a direction opposite the running direction of the web and contributes to the improvement of the dewatering performance.
IPC 8 full level
D21F 3/02 (2006.01); D21F 3/04 (2006.01); D21F 3/08 (2006.01); D21F 7/08 (2006.01)
CPC (source: EP)
D21F 3/0227 (2013.01); D21F 3/045 (2013.01); D21F 3/086 (2013.01); D21F 7/083 (2013.01)
Citation (opposition)
Opponent : Andritz(Henseler)
- DE 19802853 A1 19990729 - VOITH SULZER PAPIERTECH PATENT [DE]
- US 3775243 A 19731127 - MCCARRICK T
- DE 19939893 A1 20010301 - VOITH PAPER PATENT GMBH [DE]
- EP 1777341 A1 20070425 - MITSUBISHI HEAVY IND LTD [JP], et al
- WO 2005049917 A1 20050602 - ALBANY INT CORP [US], et al
- DE 19752725 A1 19990602 - VOITH SULZER PAPIERTECH PATENT [DE]
- US 6029570 A 20000229 - MATUSCHCZYK UWE [DE]
- US 6428874 B1 20020806 - MCGAHERN DESMOND J [US], et al
- DE 19702574 A1 19980730 - VOITH SULZER PAPIERMASCH GMBH [DE]
- EP 0854228 A2 19980722 - VOITH SULZER PAPIERMASCH GMBH [DE]
- US 4713147 A 19871215 - SAARINEN ESKO [FI]
- DE 3410172 C2 19951109 - VALMET PAPER MACHINERY INC [FI]
- DE 102005007276 A1 20060824 - VOITH PAPER PATENT GMBH [DE]
- EP 2072675 A2 20090624 - VOITH PATENT GMBH [DE]
- EP 1072721 A2 20010131 - VOITH PAPER PATENT GMBH [DE]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102011004565 A1 20120823; CN 103403252 A 20131120; CN 103403252 B 20160817; EP 2678471 A1 20140101; EP 2678471 B1 20180314; WO 2012113467 A1 20120830
DOCDB simple family (application)
DE 102011004565 A 20110223; CN 201180068339 A 20111107; EP 11779404 A 20111107; EP 2011069519 W 20111107