EP 2841643 B1 20170322 - FORMING SECTION
Title (en)
FORMING SECTION
Title (de)
FORMIERBEREICH
Title (fr)
SECTION DE FORMATION
Publication
Application
Priority
FI 2012050418 W 20120427
Abstract (en)
[origin: WO2013160527A1] A paper or board machine forming section. A paper or board machine forming section comprising a first (11) and a second (21) wire loop forming a converging gap (G) after a first (12) and a second (22) breast roll. A first dewatering zone (Zl) comprising a first stationary forming shoe (30) is situated within the first wire loop (11) immediately after the first breast roll (12). Said first forming shoe (30) comprises a first straight portion (30A) comprising a straight cover (31A) provided with through openings (32A) in order to provide non-pulsating dewatering of the pulp suspension travelling on the first wire (1) on the first straight portion (30A), and a second curved portion (30B) immediately following the first straight portion (30A), said second curved portion (30B) comprising a curved cover (31B). The forming section comprises further a first head box (40) supplying a pulp suspension jet on the first wire (1) at the beginning of the first portion (30A) of the first forming shoe (30). The apex of the gap (G) is situated at the beginning of the second portion (30B) of the first forming shoe (30). Said second curved portion (30B) is provided with through openings (32B) in order to provide non-pulsating dewatering of the pulp suspension travelling on the first wire (1) on the second curved portion (30B) of the first stationary forming shoe (30).
IPC 8 full level
D21F 1/00 (2006.01); D21F 1/48 (2006.01); D21F 1/52 (2006.01); D21F 9/00 (2006.01)
CPC (source: CN EP)
D21F 1/48 (2013.01 - CN); D21F 1/483 (2013.01 - CN); D21F 1/523 (2013.01 - EP); D21F 9/003 (2013.01 - CN EP)
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)
WO 2013160527 A1 20131031; WO 2013160527 A9 20150122; CN 104508201 A 20150408; CN 104508201 B 20170315; EP 2841643 A1 20150304; EP 2841643 A4 20151202; EP 2841643 B1 20170322
DOCDB simple family (application)
FI 2012050418 W 20120427; CN 201280072682 A 20120427; EP 12874964 A 20120427