EP1111127A9 - Pressing arrangement - Google Patents
Pressing arrangement Download PDFInfo
- Publication number
- EP1111127A9 EP1111127A9 EP00124021A EP00124021A EP1111127A9 EP 1111127 A9 EP1111127 A9 EP 1111127A9 EP 00124021 A EP00124021 A EP 00124021A EP 00124021 A EP00124021 A EP 00124021A EP 1111127 A9 EP1111127 A9 EP 1111127A9
- Authority
- EP
- European Patent Office
- Prior art keywords
- press
- counter
- roller
- nip
- shoe
- 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.)
- Granted
Links
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
- D21F3/0209—Wet presses with extended press nip
- D21F3/0218—Shoe presses
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
- D21F11/14—Making cellulose wadding, filter or blotting paper
Definitions
- the invention relates to a press arrangement of a machine for production a tissue web with at least one between one Shoe press unit and a press roll formed nip, the Shoe press unit at least one opposite the counter roll Press shoe and a flexible, liquid-tight one guided over this Press belt includes, the counter roll has a smooth surface and the Tissue web together with the press belt and at least one felt is passed through the press nip and then separated from the felt and is carried along by the smooth surface of the counter roller.
- a such a press arrangement can be a part or at least essentially form the entire press arrangement of the tissue machine in question.
- the aim of the invention is a press arrangement of the type mentioned to create with a higher dryness of the leaving the press nip Tissue web achievable and correspondingly more economical tissue production is guaranteed.
- This object is achieved according to the invention in that the angle between the tangent applied to the counter roll at the end of the press nip and at least one felt ⁇ 10 ° running out of the press nip, in particular ⁇ 15 °, in particular ⁇ 18 ° and preferably ⁇ 20 °.
- a shoe press roll with a the press jacket forming the press belt may be provided.
- a drying cylinder and in particular a is preferably used as the counter roller so-called Yankee cylinder provided.
- the surface of the press belt can be blind drilled and / or grooved.
- the press belt has an open area "f" of f ⁇ 25%.
- the press arrangement according to the invention is advantageously in tissue machines such as in particular a suction breast roll former, twin-wire former, Crescent former, Fourdrinier former and / or the like and / or can be used in combination with through-air drying concepts.
- the angle ⁇ between that at the end of the press nip 14 to the drying cylinder 18 created tangent 26 and the tapering from the press nip 14 Felt 24 is ⁇ 20 °.
- the surface of the press jacket 22 can be blind drilled and / or grooved his.
- the press jacket 22 can in particular have an open area "f" of f ⁇ 25% have.
Landscapes
- Paper (AREA)
- Vehicle Body Suspensions (AREA)
- Cyclones (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Press Drives And Press Lines (AREA)
- Glass Compositions (AREA)
Abstract
Description
Die Erfindung betrifft eine Pressenanordnung einer Maschine zur Herstellung einer Tissuebahn mit wenigstens einem zwischen einer Schuhpreßeinheit und einer Gegenwalze gebildeten Preßspalt, wobei die Schuhpreßeinheit wenigstens einen der Gegenwalze gegenüberliegenden Preßschuh und ein über diesen geführtes flexibles, flüssigkeitsdichtes Preßband umfaßt, die Gegenwalze eine glatte Oberfläche besitzt und die Tissuebahn zusammen mit dem Preßband sowie wenigstens einem Filz durch den Preßspalt geführt ist und im Anschluß daran vom Filz getrennt und durch die glatte Oberfläche der Gegenwalze mitgenommen wird. Eine solche Pressenanordnung kann einen Teil oder zumindest im wesentlichen die gesamte Pressenanordnung der betreffenden Tissuemaschine bilden.The invention relates to a press arrangement of a machine for production a tissue web with at least one between one Shoe press unit and a press roll formed nip, the Shoe press unit at least one opposite the counter roll Press shoe and a flexible, liquid-tight one guided over this Press belt includes, the counter roll has a smooth surface and the Tissue web together with the press belt and at least one felt is passed through the press nip and then separated from the felt and is carried along by the smooth surface of the counter roller. A such a press arrangement can be a part or at least essentially form the entire press arrangement of the tissue machine in question.
Bei einer aus der DE 196 54 198 A1 bekannten Pressenanordnung der eingangs genannten Art mit einem die Gegenwalze bildenden Trockenzylinder läuft die Tissuebahn etwa in der zur Trockenzylinderoberfläche tangentialen Richtung aus dem Preßspalt.In a press arrangement known from DE 196 54 198 A1 type mentioned above with a drying cylinder forming the counter-roller the tissue web runs approximately in the tangential to the drying cylinder surface Direction from the press nip.
Ziel der Erfindung ist, eine Pressenanordnung der eingangs genannten Art zu schaffen, mit der ein höherer Trockengehalt der den Preßspalt verlassenden Tissuebahn erzielbar und entsprechend eine wirtschaftlichere Tissueherstellung gewährleistet ist. The aim of the invention is a press arrangement of the type mentioned to create with a higher dryness of the leaving the press nip Tissue web achievable and correspondingly more economical tissue production is guaranteed.
Diese Aufgabe wird nach der Erfindung dadurch gelöst, daß der Winkel zwischen der am Ende des Preßspaltes an die Gegenwalze angelegten Tangente und wenigstens einem aus dem Preßspalt auslaufenden Filz ≥ 10°, insbesondere ≥ 15°, insbesondere ≥ 18° und vorzugsweise ≥ 20° ist.This object is achieved according to the invention in that the angle between the tangent applied to the counter roll at the end of the press nip and at least one felt ≥ 10 ° running out of the press nip, in particular ≥ 15 °, in particular ≥ 18 ° and preferably ≥ 20 °.
Aufgrund dieser Ausbildung wird auf wirtschaftliche Weise ein höherer Trockengehalt der Tissuebahn nach der Presse erreicht.Because of this training, a higher one becomes economically Dryness of the tissue web reached after the press.
Als Schuhpreßeinheit kann insbesondere eine Schuhpreßwalze mit einem das Preßband bildenden Preßmantel vorgesehen sein.As a shoe press unit, a shoe press roll with a the press jacket forming the press belt may be provided.
Als Gegenwalze ist vorzugsweise ein Trockenzylinder und insbesondere ein sogenannter Yankee-Zylinder vorgesehen.A drying cylinder and in particular a is preferably used as the counter roller so-called Yankee cylinder provided.
Die Oberfläche des Preßbandes kann blindgebohrt und/oder gerillt sein.The surface of the press belt can be blind drilled and / or grooved.
Vorteilhafterweise besitzt das Preßband eine offene Fläche "f" von f ≥ 25 %.Advantageously, the press belt has an open area "f" of f ≥ 25%.
Für eine offene Fläche von beispielsweise f = 36 % eines gerillten Preßbandes bzw. Preßmantels konnte bei einem Ablaufwinkel des Filzes von α = 20° eine Trockengehaltssteigerung von 4,5 % gegenüber dem Trockengehalt erzielt werden, der, anstelle einer Schuhpreßwalze, mit einer konventionellen Saugpreßwalze erreicht wird.For an open area of e.g. f = 36% of a grooved press belt or press jacket could at a discharge angle of the felt of α = 20 ° an increase in dry content of 4.5% compared to the dry content can be achieved, instead of a shoe press roll, with a conventional Suction press roller is reached.
Die erfindungsgemäße Pressenanordnung ist vorteilhafterweise in Tissuemaschinen wie insbesondere einem Saugbrustwalzenformer, Doppelsiebformer, Crescent-Former, Langsiebformer und/oder dergleichen und/oder in Kombination mit "Through-Air-Drying"-Konzepten verwendbar. The press arrangement according to the invention is advantageously in tissue machines such as in particular a suction breast roll former, twin-wire former, Crescent former, Fourdrinier former and / or the like and / or can be used in combination with through-air drying concepts.
Die Erfindung wird im folgenden anhand eines Ausführungsbeispiels unter
Bezugnahme auf die Zeichnung näher erläutert:
Der Winkel α zwischen der am Ende des Preßspaltes 14 an den Trockenzylinder
18 angelegten Tangente 26 und dem aus den Preßspalt 14 auslaufenden
Filz 24 ist ≥ 20°.The angle α between that at the end of the press nip 14 to the drying
Die Oberfläche des Preßmantels 22 kann blindgebohrt und/oder gerillt
sein. The surface of the
Der Preßmantel 22 kann insbesondere eine offene Fläche "f" von f ≥ 25 %
besitzen. The
- 1010th
- PressenanordnungPress arrangement
- 1212th
- TissuebahnTissue web
- 1414
- PreßspaltPress nip
- 1616
- SchuhpreßwalzeShoe press roll
- 1818th
- TrockenzylinderDrying cylinder
- 2020th
- PreßschuhPress shoe
- 2222
- PreßmantelPress jacket
- 2424th
- Filzfelt
- 2626
- Tangentetangent
- LL
- BahnlaufrichtungWeb direction
Claims (6)
dadurch gekennzeichnet, daß der Winkel (α) zwischen der am Ende des Preßspaltes (14) an die Gegenwalze (18) angelegten Tangente und wenigstens einem aus dem Preßspalt (14) auslaufenden Filz (24) ≥ 10°, insbesondere ≥ 15°, insbesondere ≥ 18° und vorzugsweise ≥ 20° ist.Press arrangement (10) of a machine for producing a tissue web (12) with at least one press nip (14) formed between a shoe press unit (16) and a counter roller (18), the shoe press unit (16) at least one press shoe (18) opposite the counter roller (18) 20) and a flexible, liquid-tight press belt (22) guided over it, the counter-roller (18) has a smooth surface and the tissue web (12) together with the press belt (22) and at least one felt (24) through the press nip (14 ) and is then separated from the felt (24) and carried along by the smooth surface of the counter-roller (18),
characterized in that the angle (α) between the tangent applied to the counter-roller (18) at the end of the press nip (14) and at least one felt (24) emerging from the press nip (14) ≥ 10 °, in particular ≥ 15 °, in particular ≥ 18 ° and preferably ≥ 20 °.
dadurch gekennzeichnet, daß als Schuhpreßeinheit eine Schuhpreßwalze (16) mit einem das Preßband bildenden Preßmantel (22) vorgesehen. Press arrangement according to claim 1,
characterized in that a shoe press roll (16) with a press jacket (22) forming the press belt is provided as the shoe press unit.
dadurch gekennzeichnet, daß als Gegenwalze ein Trockenzylinder (18) und insbesondere ein sogenannter Yankee-Zylinder vorgesehen ist.Press arrangement according to claim 1 or 2,
characterized in that a drying cylinder (18) and in particular a so-called Yankee cylinder is provided as the counter roller.
dadurch gekennzeichnet, daß die Oberfläche des Preßbandes (22) blindgebohrt und/oder gerillt ist.Press arrangement according to one of the preceding claims,
characterized in that the surface of the press belt (22) is blind drilled and / or grooved.
dadurch gekennzeichnet, daß das Preßband eine offene Fläche "f" von f ≥ 25% besitzt.Press arrangement according to one of the preceding claims,
characterized in that the press belt has an open area "f" of f ≥ 25%.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19962708A DE19962708A1 (en) | 1999-12-23 | 1999-12-23 | Press arrangement |
DE19962708 | 1999-12-23 |
Publications (4)
Publication Number | Publication Date |
---|---|
EP1111127A2 EP1111127A2 (en) | 2001-06-27 |
EP1111127A9 true EP1111127A9 (en) | 2001-12-19 |
EP1111127A3 EP1111127A3 (en) | 2002-01-23 |
EP1111127B1 EP1111127B1 (en) | 2009-01-28 |
Family
ID=7934297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00124021A Expired - Lifetime EP1111127B1 (en) | 1999-12-23 | 2000-11-04 | Pressing arrangement |
Country Status (7)
Country | Link |
---|---|
US (1) | US6488814B2 (en) |
EP (1) | EP1111127B1 (en) |
AT (1) | ATE422009T1 (en) |
BR (1) | BRPI0006406A2 (en) |
CA (2) | CA2650660C (en) |
DE (2) | DE19962708A1 (en) |
PL (1) | PL196244B1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10129613A1 (en) * | 2001-06-20 | 2003-01-02 | Voith Paper Patent Gmbh | Method and device for producing a fibrous web provided with a three-dimensional surface structure |
DE10157694B4 (en) * | 2001-11-24 | 2007-04-12 | Voith Patent Gmbh | Glättzylinderanordnung |
ES2635323T3 (en) | 2011-12-07 | 2017-10-03 | Valmet Aktiebolag | Press roller with extended contact area for papermaking machine and tissue paper manufacturing process |
WO2013158010A1 (en) | 2012-04-19 | 2013-10-24 | Metso Paper Sweden Ab | An extended nip roll, an extended nip press making use of the extended nip roll, a papermaking machine and a method of operating an extended nip press |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3641191A1 (en) * | 1986-12-03 | 1988-06-09 | Oberdorfer Fa F | METHOD AND DEVICE FOR THE PRODUCTION OF STRONG STABILITY, LIQUID-IMPERMEABLE, BENDABLE PRESSING BANDS, IN PARTICULAR FOR WET PRESSING OF PAPER MACHINES |
DE3742848C3 (en) * | 1987-12-17 | 1996-06-13 | Escher Wyss Gmbh | Press section of a paper machine |
US5062924A (en) * | 1988-04-08 | 1991-11-05 | Beloit Corporation | Blanket for an extended nip press with anisotropic woven base layers |
DE4020589A1 (en) * | 1990-06-28 | 1992-01-09 | Oberdorfer Fa F | Coated press band for paper making machines - has core fabric with flattened warp and/or weft threads |
DE4216264C2 (en) * | 1992-05-16 | 2000-05-25 | Voith Sulzer Papiermasch Gmbh | Process for drying and loosening a paper web |
DE4340041A1 (en) * | 1993-11-24 | 1994-04-07 | Voith Gmbh J M | Paper-making machine press section - has two sections with a web transport roller between the shoe presses for consistent character on both sides of the web |
FI109477B (en) * | 1995-02-02 | 2002-08-15 | Metso Paper Inc | Press section with equalizing press in paper machine |
DE29506352U1 (en) * | 1995-04-12 | 1995-06-01 | Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim | Press section |
US5908536A (en) * | 1995-10-03 | 1999-06-01 | Valmet Corporation | Method and machine for removing water from a paper or board web by pressing |
DE19654198A1 (en) * | 1996-12-23 | 1998-06-25 | Voith Sulzer Papiermasch Gmbh | Machine for the production of a fibrous web |
US6309512B1 (en) | 1998-09-22 | 2001-10-30 | Valmet Karlstad Ab | Device for impulse-pressing a web |
SE512799C2 (en) * | 1998-09-22 | 2000-05-15 | Valmet Karlstad Ab | Press section and shoe press therefore and counter roll for the shoe press |
US6248210B1 (en) * | 1998-11-13 | 2001-06-19 | Fort James Corporation | Method for maximizing water removal in a press nip |
DE19860687A1 (en) * | 1998-12-29 | 2000-07-06 | Voith Sulzer Papiermasch Gmbh | Machine and method for producing a fibrous web |
-
1999
- 1999-12-23 DE DE19962708A patent/DE19962708A1/en not_active Withdrawn
-
2000
- 2000-11-04 EP EP00124021A patent/EP1111127B1/en not_active Expired - Lifetime
- 2000-11-04 AT AT00124021T patent/ATE422009T1/en active
- 2000-11-04 DE DE50015542T patent/DE50015542D1/en not_active Expired - Lifetime
- 2000-12-08 BR BRPI0006406A patent/BRPI0006406A2/en unknown
- 2000-12-21 PL PL344739A patent/PL196244B1/en unknown
- 2000-12-22 US US09/741,886 patent/US6488814B2/en not_active Expired - Lifetime
- 2000-12-22 CA CA2650660A patent/CA2650660C/en not_active Expired - Fee Related
- 2000-12-22 CA CA002329554A patent/CA2329554C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
PL196244B1 (en) | 2007-12-31 |
EP1111127B1 (en) | 2009-01-28 |
CA2650660A1 (en) | 2001-06-23 |
DE19962708A1 (en) | 2001-06-28 |
DE50015542D1 (en) | 2009-03-19 |
ATE422009T1 (en) | 2009-02-15 |
US20010035103A1 (en) | 2001-11-01 |
EP1111127A3 (en) | 2002-01-23 |
PL344739A1 (en) | 2001-07-02 |
EP1111127A2 (en) | 2001-06-27 |
US6488814B2 (en) | 2002-12-03 |
BRPI0006406A2 (en) | 2017-01-17 |
CA2329554A1 (en) | 2001-06-23 |
CA2650660C (en) | 2011-02-15 |
CA2329554C (en) | 2009-12-15 |
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