EP 2344694 A4 20130724 - PRESS WASHER FOR WASHING CELLULOSE PULP
Title (en)
PRESS WASHER FOR WASHING CELLULOSE PULP
Title (de)
WASCHPRESSE ZUM WASCHEN VON ZELLSTOFF
Title (fr)
PRESSE DE LAVAGE POUR LAVER UNE PÂTE À PAPIER
Publication
Application
Priority
- SE 2009051072 W 20090928
- SE 0802072 A 20081001
Abstract (en)
[origin: WO2010039092A1] The invention relates to a press washer (100) for cellulose pulp comprising two co-operating perforated press rolls (110, 110'). An inner vat (120) is provided at a distance from the perforated rolls, an inner pulp passage (122, 122') being formed for each press roll between the roll surface and the inner vat. An outer vat (140) is provided at a distance from the inner vat so as to form an outer pulp passage (142, 142') for each press roll. A pulp inlet is arranged beneath the pinch (114), whereby, in operation, pulp introduced via the inlet is transported through the outer pulp passage (zone for pulp distribution) opposite the direction of rotation (R, R') and thereafter through the inner pulp passage in the direction of rotation before reaching the pinch. This press washer offers a simple and cost-efficient construction as well as excellent pulp formation.
IPC 8 full level
CPC (source: EP SE)
Citation (search report)
- [A] US 5589035 A 19961231 - SUNDQVIST INGEMAR [SE]
- [A] US 3980518 A 19760914 - LJUNG BERNT JOHAN, et al
- [A] WO 2008051157 A1 20080502 - METSO PAPER INC [FI], et al
- See also references of WO 2010039092A1
Designated contracting state (EPC)
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 SE SI SK SM TR
DOCDB simple family (publication)
WO 2010039092 A1 20100408; CA 2736723 A1 20100408; CN 102171393 A 20110831; CN 102171393 B 20130327; EP 2344694 A1 20110720; EP 2344694 A4 20130724; SE 0802072 A1 20100402; SE 0802072 A2 20100720; SE 532973 C2 20100601
DOCDB simple family (application)
SE 2009051072 W 20090928; CA 2736723 A 20090928; CN 200980139748 A 20090928; EP 09818061 A 20090928; SE 0802072 A 20081001