EP 2841643 A4 20151202 - FORMING SECTION
Title (en)
FORMING SECTION
Title (de)
FORMBEREICH
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)
Citation (search report)
- [YD] US 4154645 A 19790515 - KANKAANPAA MATTI [FI]
- [Y] DE 102010003946 A1 20101028 - METSO PAPER INC [FI]
- [Y] DE 202006006820 U1 20060706 - METSO PAPER INC [FI]
- [A] WO 2009068728 A1 20090604 - METSO PAPER INC [FI], et al
- [A] DE 102009045674 A1 20100429 - METSO PAPER INC [FI]
- See references of WO 2013160527A1
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