EP 1586702 B1 20090701 - Twin-wire former for a machine for manufacturing a fibrous web
Title (en)
Twin-wire former for a machine for manufacturing a fibrous web
Title (de)
Doppelsiebformer für eine Maschine zur Herstellung einer Faserstoffbahn
Title (fr)
Section de formage à deux toiles pour machine de fabrication d'une bande de matériau fibreux
Publication
Application
Priority
DE 102004018329 A 20040413
Abstract (en)
[origin: EP1586702A1] A papermaking assembly has a blade gap former with two endless sieve belts (3, 4) which are both deflected by the circumference (5, 6) of a breast roller (7.1, 8.1). The sieves then form a wedge-like inlet gap (10) into which a fibrous suspension (13) is discharged as a jet (12). The jet impinges (14(3, 14(4) at a number of points on the two sieves (3, 4). The sieves subsequently form a sandwich either side of the fibres and feed through a sequence of forming and dewatering stations. The impingement station (9) is a shoe (9.1) with a coating (28) with a series of strips (29.1-29.6) in-line with the direction of sieve travel (S). The gaps between the strips incorporated water drain holes (30.1-30.5), each in contact with the circulating sieve belt (3) within a housing (32). The housing base panel (33) is in contact with the breast roller.
IPC 8 full level
D21F 9/00 (2006.01)
CPC (source: EP)
D21F 9/003 (2013.01)
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 MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1586702 A1 20051019; EP 1586702 B1 20090701; AT E435331 T1 20090715; DE 102004018329 A1 20051110; DE 502005007600 D1 20090813
DOCDB simple family (application)
EP 05102625 A 20050404; AT 05102625 T 20050404; DE 102004018329 A 20040413; DE 502005007600 T 20050404