EP0857820B1 - Pressenpartie - Google Patents
Pressenpartie Download PDFInfo
- Publication number
- EP0857820B1 EP0857820B1 EP98101130A EP98101130A EP0857820B1 EP 0857820 B1 EP0857820 B1 EP 0857820B1 EP 98101130 A EP98101130 A EP 98101130A EP 98101130 A EP98101130 A EP 98101130A EP 0857820 B1 EP0857820 B1 EP 0857820B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- press
- fibrous web
- felt
- nip
- roll
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 206010040954 Skin wrinkling Diseases 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/04—Arrangements thereof
- D21F3/045—Arrangements thereof including at least one extended press nip
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F2/00—Transferring continuous webs from wet ends to press sections
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/04—Arrangements thereof
Definitions
- the invention relates to a press section of a machine for producing a Fibrous web consisting of at least one press nip for drainage the fibrous web, with the fibrous web on both sides through the press nip at least one endless press felt runs and the fibrous web of a volume of an upstream unit with the help of one of one of the two Press felts wrapped take-off roller is taken over.
- Such a press section is known from EP 159 280.
- the Fibrous web by means of an upper one guided over a take-off roller Felt web removed.
- Another felt web is immediately behind the Removal roller brought up to the fibrous web and the fibrous web then one between the two felt webs through a first press nip Long nip press led. Then the fibrous web continues to arrive between two felt tracks in a shoe press, from which the Fibrous web is guided to a subsequent drying unit.
- the inlet angle of the Fibrous web in the first press nip is constant and not accordingly conditions such as basis weight, dryness or type of fiber can be varied. As a result, especially at high Web running speeds Wrinkles occur in the fibrous web. This depends on the size of the inlet wedge between the lower roller and the lower felt and in this infeed wedge through the lower felt Fibrous web compressed air.
- the object of the invention is therefore to provide a press section in which the Inlet angle of the fibrous web in the press nip can be varied.
- the inlet angle can be adjusted via the generally vertically adjustable guide roller the fibrous web with its press felts easily depending on the Operating conditions can be varied. This enables you to influence the possibly in the inlet wedge between the press felt and the roller towards the fibrous web compressed air.
- the use of a suction guide roller prevented also the introduction of air into the inlet gusset between press felt and guide roller.
- the second press felt at a relatively short distance behind the take-off roller is fed, swinging of the press felts can be avoided. It can also be used in cases where the above Fibrous web running press felt the fibrous web from the upstream Unit takes over a loosening of the fibrous web prevented by this press felt become.
- the press section consists of two press nips 2, 10 for Drainage of the fibrous web 1, d. H. a paper web, passing through the first Press nip 2 an endless press felts 3, 4 runs on both sides of the fibrous web 1 and the upper press felt 3 the fibrous web 1 from a belt 5 in the form of a sieve of an upstream former takes over. This is supported by one from the top Press felt 3 wrapped and vacuumed take-off roller 6.
- This guide roller 7 is with at an angle of about 30 ° from the upper press felt 3 and is to opposite press felt 4 out, d. H. here essentially vertically adjustable, whereby the lower press felt 4 at least affects the guide roller 7.
- one in front of the guide roller 7 in the direction of web travel arranged, but wrapped by the lower press felt 4 guide roller 19 in position is adjustable. This not only allows the wrap angle to be varied of the lower press felt 4 with respect to the guide roller 7, but also leading the lower press felt 4 from the guide roller 7 under certain operating conditions.
- the aspirated guide roller 7 thus not only enables an adjustment of the inlet angle the fibrous web 1 with respect to the first press nip 2, but also the suction the existing between the upper press felt 3 and the fibrous web 1 and in the inlet gusset between the upper press felt 3 and the guide roller 7 entrained air. As a result, the fibrous web 1 becomes between the two Press felts 3, 4 held, with at least a reduced risk of wrinkling in the Press nip 2 performed.
- the fibrous web 1 is by means of one of the lower Press felt 4 wrapped, suction guide roll separated from the upper press felt 3 what the rewetting at least reduced.
- the first press nip 2 is one shoe press roller 8 arranged above and a lower one, essentially cylindrical counter-roller 9 is formed.
- the transfer takes place from the lower press felt 4 an upper press felt 11 of the following press, also from an above arranged shoe press roll 12 and a lower, substantially cylindrical Counter roll 13 is formed. This is supported by one of the upper press felt 11 looped, suctioned guide roller.
- a lower press felt is also formed by the second extended press nip 10 17 out.
- the upper press felt 11 is also removed and the fibrous web 1 in known form to a drying wire 16 of a following Pass the dryer section.
- waterproof tape 15 passed through the second press nip 10. This tape 15 counteracts the rewetting, especially since the upper press felt 11 immediately after Press nip 10 can be guided away.
- the lower one Band 15 are brought up to the fibrous web 1. This is done via a positionally variable guide roller 14, which is wrapped by the belt 15 and before the second Press nip 10 is arranged.
- the shoe press rolls 8, 12 consist in both examples of a flexible Roller jacket, which is guided over a press shoe with a concave contact surface.
- the Pressure is generally hydraulic and lubrication between press shoe and roll shell on hydrostatic and / or hydrodynamic Wise.
- the vacuumed rollers have a perforated roller shell inside Negative pressure is generated. This is done either through a direct connection to a Vacuum source or by vacuuming the area around the vacuumed roller from the outside.
Landscapes
- Paper (AREA)
- Resistance Heating (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Description
- Figur 1:
- eine Pressenpartie mit doppelt - befilztem zweiten Preßspalt und
- Figur 2:
- eine Pressenpartie mit Preßband im zweiten Preßspalt.
Claims (7)
- Pressenpartie einer Maschine zur Herstellung einer Faserstoffbahn (1) bestehend aus zumindest einem Preßspalt (2) zur Entwässerung der Faserstoffbahn (1), wobei durch den Preßspalt (2) beidseitig der Fasersoffbahn (1) jeweils mindestens ein endloser Preßfilz (3, 4) verläuft und die Faserstoffbahn (1) von einem Band (5) einer vorgelagerten Einheit mit Hilfe einer, von einem der beiden Preßfilze (3) umschlungenen Abnahmewalze (6) übernommen wird,
dadurch gekennzeichnet daß,
zwischen der Abnahmewalze (6) und dem Preßspalt (2) eine besaugte Leitwalze (7) in der Schleife des die Faserstoffbahn (1) vom Band (5) übernehmenden Preßfilzes (3) augeordnet ist, die Leitwalze (7) von diesem preßfilz (3) umschlungen ist und die Leitwalze (7) zum gegenüberliegenden Preßfilz (4) hin verstellbar ist, wobei der gegenüberliegende Preßfilz (4) die Leitwalze (7) zumindest tangiert. - Pressenpartie nach Anspruch 1,
dadurch gekennzeichnet daß,
der Preßspalt (2) der erste Preßspalt der Pressenpartie ist und die Faserstoffbahn (1) von einem Band (5) in Form eines Siebes des vorgelagerten Formers übernommen wird. - Pressenpartie nach Anspruch 1 oder 2,
dadurch gekennzeichnet daß,
der oberhalb der Faserstoffbahn (1) verlaufende Preßfilz (3) die Faserstoffbahn (1) von der vorgelagerten Einheit übernimmt. - Pressenpartie nach einem der vorhergehenden Ansprüche
dadurch gekennzeichnet daß,
der unterhalb der Faserstoffbahn (1) verlaufende Preßfilz (4) die Faserstoffbahn (1) an eine folgende Einheit übergibt. - Pressenpartie nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet daß,
der Preßspalt (2) verlängert ausgeführt ist und vorzugsweise von einer Schuhpreßwalze (8) und einer zylindrischen Gegenwalze (9) gebildet ist. - Pressenpartie nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet daß,
die folgende Einheit von einem weiteren, vorzugsweise verlängerten Preßspalt (10) gebildet wird. - Pressenpartie nach einem der vorhergehenden Ansprüche
dadurch gekennzeichnet daß,
der die Faserstoffbahn (1) von einer vorgelagerten Einheit übernehmende Preßfilz (3) die Leitwalze (7) mit einem Winkel von 5 bis 60°, vorzugsweise 15 bis 45 ° und der gegenüberliegenden Preßfilz (4) die Leitwalze (7) mit einem Winkel von 0 bis 30°, vorzugsweise 0 bis 15 ° umschlingt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29701382U DE29701382U1 (de) | 1997-01-28 | 1997-01-28 | Pressenpartie einer Papiermaschine |
DE29701382U | 1997-01-28 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0857820A2 EP0857820A2 (de) | 1998-08-12 |
EP0857820A3 EP0857820A3 (de) | 1999-06-02 |
EP0857820B1 true EP0857820B1 (de) | 2002-12-11 |
Family
ID=8035124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98101130A Expired - Lifetime EP0857820B1 (de) | 1997-01-28 | 1998-01-23 | Pressenpartie |
Country Status (4)
Country | Link |
---|---|
US (1) | US6090244A (de) |
EP (1) | EP0857820B1 (de) |
AT (1) | ATE229590T1 (de) |
DE (3) | DE29701382U1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29701382U1 (de) * | 1997-01-28 | 1997-03-20 | Voith Sulzer Papiermasch Gmbh | Pressenpartie einer Papiermaschine |
DE19801891A1 (de) | 1998-01-20 | 1999-07-22 | Voith Sulzer Papiertech Patent | Pressenpartie |
SE511667C2 (sv) † | 1998-03-16 | 1999-11-08 | Valmet Karlstad Ab | Pappersmaskin och sätt för framställning av en pappersbana |
EP0950757A3 (de) * | 1998-04-15 | 2001-01-10 | Voith Paper Patent GmbH | Pressenanordnung |
DE19919051A1 (de) | 1999-04-27 | 2000-11-02 | Voith Sulzer Papiertech Patent | Die Pressenpartie |
DE19934875A1 (de) * | 1999-07-24 | 2001-01-25 | Voith Paper Patent Gmbh | Papiermaschine |
DE10012148A1 (de) * | 2000-03-13 | 2001-09-20 | Voith Paper Patent Gmbh | Pressanordnung |
EP1136619B1 (de) | 2000-03-13 | 2006-07-05 | Voith Paper Patent GmbH | Pressanordnung |
DE10053935A1 (de) * | 2000-10-31 | 2002-05-08 | Voith Paper Patent Gmbh | Pressenanordnung |
DE102005048927A1 (de) * | 2005-10-13 | 2007-04-19 | Voith Patent Gmbh | Pressanordnung |
FI20075039L (fi) * | 2007-01-22 | 2008-07-23 | Metso Paper Inc | Rainanmuodostuskoneen formeriosalla tai puristinosalla oleva järjestelmä kudoksen ja edelleen rainan ohjaamiseksi ohjausteloilla sekä vastaava menetelmä |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3198697A (en) * | 1964-06-26 | 1965-08-03 | Beloit Corp | Paper press roll assemblies |
US3600275A (en) * | 1968-05-23 | 1971-08-17 | Beloit Corp | Web pickup |
SE374150B (de) * | 1970-03-17 | 1975-02-24 | Ahlstroem Oy | |
US4075056A (en) * | 1974-08-15 | 1978-02-21 | Beloit Corporation | Press section structure |
US4483745A (en) * | 1982-09-29 | 1984-11-20 | Beloit Corporation | Method and apparatus of sheet transfer using a nonporous smooth surfaced belt |
US4561939A (en) * | 1984-03-26 | 1985-12-31 | Beloit Corporation | Extended nip press arrangement |
DE3708191A1 (de) * | 1987-03-13 | 1988-09-22 | Voith Gmbh J M | Nasspresse |
BR8806893A (pt) * | 1987-04-14 | 1989-10-31 | Voith Gmbh J M | Maquina para fabricar folhas de massa fibrosa |
DE3815278A1 (de) * | 1988-05-05 | 1989-11-16 | Voith Gmbh J M | Pressenpartie einer maschine zur herstellung einer faserstoffbahn, insbesondere papierbahn |
US5328569A (en) * | 1992-06-26 | 1994-07-12 | Beloit Technologies, Inc. | Curved suction box apparatus in a papermaking machine press section |
FI114227B (fi) * | 1995-04-24 | 2004-09-15 | Metso Paper Inc | Paperikone, jossa on puristinosa ja kuivatusosa |
DE29701382U1 (de) * | 1997-01-28 | 1997-03-20 | Voith Sulzer Papiermasch Gmbh | Pressenpartie einer Papiermaschine |
-
1997
- 1997-01-28 DE DE29701382U patent/DE29701382U1/de not_active Expired - Lifetime
-
1998
- 1998-01-10 DE DE29800330U patent/DE29800330U1/de not_active Expired - Lifetime
- 1998-01-23 AT AT98101130T patent/ATE229590T1/de not_active IP Right Cessation
- 1998-01-23 DE DE59806571T patent/DE59806571D1/de not_active Expired - Fee Related
- 1998-01-23 EP EP98101130A patent/EP0857820B1/de not_active Expired - Lifetime
- 1998-01-28 US US09/014,971 patent/US6090244A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0857820A3 (de) | 1999-06-02 |
ATE229590T1 (de) | 2002-12-15 |
DE29701382U1 (de) | 1997-03-20 |
EP0857820A2 (de) | 1998-08-12 |
US6090244A (en) | 2000-07-18 |
DE59806571D1 (de) | 2003-01-23 |
DE29800330U1 (de) | 1998-04-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE4224730C1 (en) | Tissue paper mfg. machine preventing moisture return - comprises shoe press for press unit(s) for drying tissue web, for min. press units | |
EP0509199B1 (de) | Pressenpartie einer Papiermaschine | |
EP1072721B1 (de) | Papiermaschine | |
DE2641714A1 (de) | Tissue-papiermaschine | |
EP0857820B1 (de) | Pressenpartie | |
DE19756422A1 (de) | Maschine zur Herstellung einer Faserstoffbahn, insbesondere einer Tissue-Papierbahn | |
EP1397553B1 (de) | Verfahren und maschine zur herstellung einer faserstoffbahn | |
EP1316641B1 (de) | Pressenpartie | |
EP0468005B1 (de) | Anordnung zum überführen einer bahn von der pressen- zur trockenpartie einer papiermaschine | |
EP0854230B1 (de) | Nasspresse | |
DE202005012994U1 (de) | Vorrichtung zur Entwässerung einer Faserstoffbahn | |
EP1077283B1 (de) | Pressenpartie | |
DE4301751C2 (de) | Verfahren zum Ablösen einer laufenden Faserstoffbahn von zwei endlosen Siebbändern | |
EP0803604B1 (de) | Nasspresse | |
EP1777342B1 (de) | Pressanordnung | |
EP1739228B1 (de) | Maschine zur Herstellung einer Faserstoffbahn | |
EP0931876B1 (de) | Pressenpartie | |
AT521367B1 (de) | Vorrichtung und verfahren zum überführen eines streifens einer bahn | |
EP1136619B1 (de) | Pressanordnung | |
DE19801417A1 (de) | Pressenpartie | |
DE19522462A1 (de) | Vorrichtung zur Entwässerung einer Faserstoffbahn | |
EP1777340B1 (de) | Pressanordnung | |
DE4335024C2 (de) | Pressenpartie einer Papiermaschine und Überführeinrichtung | |
EP1743974B1 (de) | Pressanordnung | |
WO1995020068A1 (de) | Zugfreie bahnüberführung in einer pressenpartie |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT DE FI IT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VOITH SULZER PAPIERTECHNIK PATENT GMBH |
|
17P | Request for examination filed |
Effective date: 19991202 |
|
AKX | Designation fees paid |
Free format text: AT DE FI IT SE |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VOITH PAPER PATENT GMBH |
|
17Q | First examination report despatched |
Effective date: 20010727 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT DE FI IT SE |
|
REF | Corresponds to: |
Ref document number: 229590 Country of ref document: AT Date of ref document: 20021215 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 59806571 Country of ref document: DE Date of ref document: 20030123 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20030217 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20030221 Year of fee payment: 6 Ref country code: AT Payment date: 20030221 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FI Payment date: 20030224 Year of fee payment: 6 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20030912 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040123 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040123 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040124 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040803 |
|
EUG | Se: european patent has lapsed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050123 |