EP 0712454 B1 20011017 - GAP FORMER IN A PAPER MACHINE
Title (en)
GAP FORMER IN A PAPER MACHINE
Title (de)
DOPPELSIEBFORMER IN EINER PAPIERMASCHINE
Title (fr)
FORMEUR A DEUX TOILES DANS UNE MACHINE A PAPIER
Publication
Application
Priority
- FI 9500276 W 19950522
- FI 942832 A 19940615
Abstract (en)
[origin: WO9534713A1] The invention concerns a gap former in a paper machine, comprising a twin-wire zone, which is composed of a first forming-wire loop (10) and of a second forming-wire loop (20) and which starts from the forming gap (G), into which the slice part (31) of the headbox (30) feeds a pulp suspension jet. The forming gap (G) is defined, from one side, by the first forming wire (10), which runs over the forming roll (11), and, from the opposite side, by the substantially straight run of the second forming wire (20) starting from the breast roll (21) to the forming roll (11). Draining equipment (40...44) is fitted inside the first forming-wire loop (10) after the forming gap (G) and the forming roll (11), which draining equipment is provided with a deflector duct (12) and with a deflector rib (12a) placed against the first forming wire (10) in the lower part of said deflector duct (12), and, inside the second wire loop (20), a forming shoe is arranged, which is provided with a ribbed deck consisting of forming ribs (22) and which is loaded against the second forming wire (20). In the invention, the first forming rib of the forming shoe or a unified forming-rib construction (22) composed of two or more forming ribs is mounted so that it can be loaded adjustably, so that the free run of the forming wires (10, 20) from the forming roll (11) to the first forming rib is substantially little.
IPC 1-7
IPC 8 full level
CPC (source: EP KR)
D21F 1/00 (2013.01 - KR); D21F 9/003 (2013.01 - EP); D21F 11/00 (2013.01 - KR)
Designated contracting state (EPC)
AT DE FR GB IT SE
DOCDB simple family (publication)
WO 9534713 A1 19951221; AT E207154 T1 20011115; CA 2168119 A1 19951221; CA 2168119 C 20070327; DE 69523257 D1 20011122; DE 69523257 T2 20020627; EP 0712454 A1 19960522; EP 0712454 B1 20011017; FI 112509 B 20031215; FI 942832 A0 19940615; FI 942832 A 19951216; JP 3828148 B2 20061004; JP H09504060 A 19970422; KR 100356281 B1 20030211; KR 960704112 A 19960831
DOCDB simple family (application)
FI 9500276 W 19950522; AT 95920084 T 19950522; CA 2168119 A 19950522; DE 69523257 T 19950522; EP 95920084 A 19950522; FI 942832 A 19940615; JP 50168396 A 19950522; KR 19960700771 A 19960215