EP 1853759 A1 20071114 - DEWATERING ARRANGEMENT ADAPTED FOR USE IN A TWIN-WIRE DEWATERING SECTION OF A STOCK PROCESSING MACHINE
Title (en)
DEWATERING ARRANGEMENT ADAPTED FOR USE IN A TWIN-WIRE DEWATERING SECTION OF A STOCK PROCESSING MACHINE
Title (de)
FÜR DIE VERWENDUNG IN EINEM DOPPELSIEBENTWÄSSERUNGSTEIL EINER GANZSTOFFVERARBEITUNGSMASCHINE GEEIGNETE ENTWÄSSERUNGSANORDNUNG
Title (fr)
SYSTEME D'EGOUTTAGE CONÇU POUR ETRE UTILISE DANS UNE SECTION D'EGOUTTAGE A DEUX TOILES D'UNE MACHINE DE TRAITEMENT DE PATE
Publication
Application
Priority
- SE 2006000257 W 20060227
- SE 0500446 A 20050228
Abstract (en)
[origin: WO2006091166A1] Dewatering arrangement adapted to use in a twin-wire dewatering section of a stock processing machine, comprising a single-ply head box (4) for supplying stock through a nozzle (8) with an inlet (11 ) fed by a tube bank (6) with tubes (7) of non-circular cross- section, a closed loop first wire (2) adapted to receive the stock from the head box (4) on its upper surface and with pressure pulse generating blades (5) mounted inside the loop, a closed loop second wire (3) adapted to be fed on top of the first wire (2), and with pressure pulse generating blades (13) mounted inside the loop, thereby pressing the stock between itself and the first wire (2). The inlet height of the headbox nozzle (8), defined as the total tube bank height minus the total upstream thickness of eventual nozzle vanes (14), is at least 150 mm. By using a larger height of the headbox nozzle it is possible to lessen the risk of formation damages and also to use a higher slice opening, without formation disturbances. This in turn also gives better potential for paper strength and formation. The arrangement is suitable to both paper and paper board machines.
IPC 8 full level
D21F 1/02 (2006.01); D01F 1/06 (2006.01); D21F 9/00 (2006.01)
CPC (source: EP SE)
D21F 1/02 (2013.01 - EP SE); D21F 1/028 (2013.01 - EP); D21F 9/003 (2013.01 - EP)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006091166 A1 20060831; AT E403028 T1 20080815; DE 602006002027 D1 20080911; EP 1853759 A1 20071114; EP 1853759 B1 20080730; SE 0500446 L 20051129; SE 526969 C2 20051129
DOCDB simple family (application)
SE 2006000257 W 20060227; AT 06716945 T 20060227; DE 602006002027 T 20060227; EP 06716945 A 20060227; SE 0500446 A 20050228