EP1072721A2 - Paper machine - Google Patents

Paper machine Download PDF

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Publication number
EP1072721A2
EP1072721A2 EP00106510A EP00106510A EP1072721A2 EP 1072721 A2 EP1072721 A2 EP 1072721A2 EP 00106510 A EP00106510 A EP 00106510A EP 00106510 A EP00106510 A EP 00106510A EP 1072721 A2 EP1072721 A2 EP 1072721A2
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EP
European Patent Office
Prior art keywords
press
web
fibrous web
preferably
characterized
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
Application number
EP00106510A
Other languages
German (de)
French (fr)
Other versions
EP1072721A3 (en
EP1072721B1 (en
Inventor
Thomas Dr. Elenz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Paper Patent GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
Priority to DE19934875 priority Critical
Priority to DE1999134875 priority patent/DE19934875A1/en
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1072721A2 publication Critical patent/EP1072721A2/en
Publication of EP1072721A3 publication Critical patent/EP1072721A3/en
Application granted granted Critical
Publication of EP1072721B1 publication Critical patent/EP1072721B1/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7915994&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1072721(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00Press section of machines for making continuous webs of paper
    • D21F3/02Wet presses
    • D21F3/04Arrangements thereof
    • D21F3/045Arrangements thereof including at least one extended press nip
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F9/00Complete machines for making continuous webs of paper
    • D21F9/02Complete machines for making continuous webs of paper of the Fourdrinier type

Abstract

The press section (4) of a papermaking or paper finishing machine has only one press gap formed by two press rollers (5). The paper web (1) is flanked by two press blankets (6,7) through the press gap. The water is extracted at the web formation stage (2) so that the paper web (1) is formed from the pulp with a dry content of at least 18% and preferably at least 20%. The initial drying group (8) of the drying section (3) has max. three heated drying cylinders (9), where the web (1) passes partially round them. The web (1) is given a constant support by at least one roller or a blanket in its movement path between the web formation stage (2) to the end of the initial drying group (8). The press gap has a length of ≥ 300 mm and preferably ≥ 500 mm. The linear force at the press gap is ≥ 800 KN/m and preferably ≥ 1000 KN/m and especially ≥ 1200 KN/m. A suction unit (12) is at the web formation stage (2), before the transfer point of the web (1) to the press section (4), to give it a dry content of at least 18% and preferably at least 20%. The web (1), together with at least one continuous water absorbent and/or water permeable blanket (15), is moved through an initial press gap (16) formed by two rollers at the web formation stage (2), before the transfer to the press section (4). The initial press gap (16) is formed by a suction roller (17) and a press roller (18), and the water permeable blanket (15) is formed by the fourdrinier (10) round the suction roller (17). At least one roller is a press roller (18), with a water absorbent blanket (15) round it as a press blanket (19). A wetting unit (13) is in front of the press gap at the press section (4), preferably as a steam box, to set the lateral moisture profile of the web (1). Sensors (14) to measure the lateral moisture profile of the web (1) are in the press section (4) and/or at a following stage and preferably the drying section (3), which set the working at least of the wetting unit (13). The sensors (14) also adjust the working of the suction unit (12) and/or the initial press gap (16) at the web formation stage (2). The web (1) follows a horizontal or an angled downwards path at the press gap. A trough (20) is over the upper press blanket (6) to catch water spun away from the upper press roller (5)./ The initial drying group (8) comprises max. two heated drying cylinders (9), and preferably only one. The paper web (1) is in a weight of 50-200 g/m<2> and preferably 50-100 g/m<2>, of wood-free fibers. The web (1) travels at a speed of not more than 1500 m/min.

Description

The invention relates to a machine for producing and / or dimming a Fibrous web with a press section for dewatering this, an upstream Shaper for sheet formation and a downstream drying section for drying the Fibrous web.

Such machines are described for example in EP 770 727, the Fibrous web through at least two elongated press nips of the press section is performed together with several press felts. The fact that the fibrous web in the press nips can come into contact with different press felts Irregularities in the water absorption or the moisture content of the When looking at press felts across the fibrous web, it is better to balance them. The result is Moisture cross profile of the fibrous web is relatively balanced.

The disadvantage here is the large space requirement and the relatively high production cost for the two extended press nips, which involve the participation of relatively expensive shoe press rolls be formed.

The object of the invention is therefore to provide a paper machine with a small, yet efficient and with as little effort as possible To create press section.

According to the invention the object was achieved in that the press section from only a press nip formed by two press rolls, through which in addition to the Fibrous web, arranged on both sides thereof, at least one press felt is guided, the fibrous web in the former to a dry content of at least 18%, preferably at least 20% is dewatered, the first dry group of the Dryer section consists of a maximum of 3 heated drying cylinders, which of the The fibrous web is partially wrapped and the fibrous web from the former to at least one roller or one at the end of the first drying group Belt in the form of a forming wire, a press felt, a transfer belt or one Dryer screen is supported.

The dry content of at least 18%, preferably at least 20% after Shaper allows the restriction to only one extended nip in the Press section. Because of the relatively high moisture content of the fibrous web after the press nip is a closed guide of the fibrous web from the former especially up to the end of the first drying group, especially in high Machine speeds are important. In addition, extensions of the Fibrous web also due to the high moisture content at the beginning of the dryer section be balanced as quickly as possible, which is why at least the first drying group is as short as possible. Otherwise there would be a risk of web breaks or Wrinkling. A compensation of the stretching is generally achieved in that the following dryer group is operated at a higher speed than the previous one.

In order to ensure adequate drainage in the press nip, the length of the press nip should be greater than 300 mm, preferably greater than 500 mm. In this context, the web speed should not exceed 1500 m / min to ensure a sufficient pressing time. In addition, the line force in the press nip should be above 800 KN / m, preferably above 1000 KN / m and in particular above 1200 KN / m. This enables pressing impulses of more than 60 KPa s to be achieved. However, since these values are subject to upper limits from the point of view of mechanical engineering and costs, as well as the load capacity of the press felts, use appears in particular for the production of fibrous webs with a basis weight between 50 and 200 g / m 2, preferably between 50 and 100 g / m 2 and / or particularly suitable for the production of wood-free paper webs. In all other cases, the requirements for the press section would be relatively high, but also realizable.

To keep a dry content of at least 18%, preferably at least 20% To be able to guarantee, should be in the former before the transfer point of the fibrous web on the press section at least one suction device can be arranged, which by the forming wire sucks the water out of the fibrous web. In combination or on its own, however, it is also possible that in the former in front of the transfer point the fibrous web to the press section together with at least the fibrous web an endlessly circulating, water-absorbent and / or water-permeable Band is passed through a pre-press nip preferably formed by two rollers. In the case of the combination, that is, when the pre-press nip is formed by two rolls a suction roll and a press roll is formed, the forming wire should be as water-permeable tape wrapping around the vacuumed roller.

To take up the water squeezed out in the pre-press nip should also at least one roller in the form of a press roller from a water-absorbent Be wrapped in a band in the form of a press felt.

In addition, a moistening device should be in the press section in front of the press nip preferably in the form of a steam box to influence the Moisture cross profile of the fibrous web be present. So that comparative effect of several press nips within the press section not only achieved, but also surpassed. For this, at least in the Press section or a subsequent unit sensors for detecting the Moisture cross profile of the fibrous web can be arranged, which at least on the Act on the humidifier. The results of these sensors can also be used Control of the suction device and / or the pressing forces in the pre-press nip in the former to be used. However, this presupposes that at least the However, the moistening device preferably also the suction device and / or the Pressing forces across the fiber web can be controlled separately in zones.

Since there is a lot of water in the single press nip of the press section, the The fibrous web leaves the press nip horizontally or inclined downwards and at least over the upper press felt a gutter to catch the from the upper Press roller centrifuged water can be arranged.

In addition, as described above, at least the first drying group should be very short, preferably from at most 2, in particular from at most one heated Drying cylinder can be designed.

The invention will be explained in more detail below using an exemplary embodiment. In the accompanying drawing, the figure shows a schematic section of a paper machine for producing a wood-free paper web with a finished basis weight between 50 and 100 g / m 2 .

In the illustrated end region of the former 2, the fibrous web 1 is one water-permeable forming screen 10 supported to the transfer point to the press section 4 guided. In the former 2, the fibrous web 1 is at a dry content of at least 20% drained. In order to be able to guarantee this continuously, the fibrous web 1 together with the forming wire 10 and a water-absorbent press felt 19 by a pre-press nip formed by a vacuumed roll 17 and a press roll 18 16 out. The water through the water-permeable band 15 in Shape the forming wire 10 into a suction device 12 in the form of the vacuumed roller 17 sucked. On the opposite side, the squeezed water from the water absorbent tape 15 in the form of the press felt 19 and transported away.

Thereafter, the dewatering takes place in the forming of two press rolls 5 extended press nip of the press section 4, each press roll 5 of an endless revolving press felt 6.7 is wrapped. For example, the fibrous web 1 from Forming wire 10 passed to the upper press felt 6, what from a suction guide roller 22 of the upper press felt 6 is supported. After both press felts 6.7 are brought together, the lower press felt 7 via a moistening device 13 led in the form of a steam blow box, the water vapor to influence the Moisture cross profile of the fibrous web 1 is used.

After the press nip, the lower press felt 7 with the fibrous web 1 of the Upper press felt 6 separated, which is supported by a suction pad 24. Then the fibrous web 1 is connected to the dryer fabric 10 of the first Pass dryer group 8, which is also from a suction guide roller 22 des Dryer screen 11 is supported.

Since there is a lot of water in the single press nip of the press section 4, the upper one leaves Press felt 6 inclined the press nip down, so that plenty of space for a trough 20 to Collection of the centrifuged water of the upper press roller 5 remains. Under the lower press roller 5, a channel can of course also be used. To the press nip or the delivery of the fibrous web 1, both press felts 6.7 of Conditioning devices 21 are cleaned and dried.

The first drying group 8 consists only of a heated drying cylinder 9, which the fibrous web 1 is guided, the fibrous web 1 from the dryer fabric 11 this drying group 8 is pressed against the drying cylinder 9.

From the former 2 to the dryer section 3, the fibrous web 1 is always one Roller or a belt supported so that the fibrous web 1 runs safely is guaranteed at high speeds. The generally endless ones Belts are guided over normal 23 or suction guide rollers 22.

From the drying cylinder 9, the fibrous web 1 from the drying wire 11 of the following Removed dryer group, of course beforehand the dryer fabric 11 of the first Drying group 8 has been removed. This handover allows the second Dryer group a higher speed than in the first dryer group 8 drive. As a result, stretching of the fibrous web 1 can be avoided to avoid Wrinkles and tears can be compensated.

In the following drying groups, the fibrous web 1 is together with the Dryer screen 11 of the respective dryer group alternately in an analogous manner Drying cylinder 9 and suction guide rollers 22 out.

At the beginning of the dryer section 3, an example is given here in the peripheral area sucked guide roller 22 the moisture cross profile of the fibrous web 1 from sensors 14 measured. The result of this measurement is used to control the Humidification device 13, the vacuum level of the suction roller 17 and that of the Press roll 18 outgoing press forces used. The humidification Suction and pressing can be controlled separately in zones across the fibrous web. This enables the creation of a moisture profile as uniform as possible Fibrous web 1 even with only one press nip in the press section 4.

The nip itself is a cylindrical lower press roll 5 and one upper shoe press roll 5, wherein the shoe press roll 5 from a flexible press jacket, which he uses a pressure shoe with concave Contact surface is guided. This allows the formation of long press nips with over 300 mm length. The line force in the press nip is over 1000 KN / m and Web speed at 1200 m / min.

Claims (15)

  1. Machine for producing and / or finishing a fibrous web (1) with a press section (4) for dewatering it, an upstream former (2) for sheet formation and a downstream drying section (3) for drying the fibrous web (1), characterized in that
    the press section (4) consists of only one press nip formed by two press rolls (5) through which, in addition to the fibrous web (1), arranged on both sides, at least one press felt (6, 7) is guided, the fibrous web (1) in Shaper (2) to a dryness of at least 18%, preferably at least 20%, the first dryer group (8) of the dryer section (3) consists of at most 3 heated drying cylinders (9), which are partially wrapped in the fibrous web (1) and the fibrous web (1) from the former (2) to the end of the first dryer group (8) is constantly supported by at least one roller or belt.
  2. Machine according to claim 1, characterized in that
    the length of the press nip is greater than 300 mm, preferably greater than 500 mm.
  3. Machine according to claim 1 or 2, characterized in that
    the line force in the press nip is greater than 800 KN / m, preferably greater than 1000 KN / m and in particular greater than 1200 KN / m.
  4. Machine according to one of the preceding claims, characterized in that
    At least one suction device (12) ensuring a dry content of at least 18%, preferably at least 20%, is arranged in the former (2) in front of the transfer point of the fibrous web (1) to the press section (4).
  5. Machine according to one of the preceding claims, characterized in that
    in the former (2) in front of the transfer point of the fibrous web (1) to the press section (4) the fibrous web (1) together with at least one endlessly circulating water-absorbent and / or water-permeable belt (15) through a pre-press nip (preferably formed by two rollers) 16) is performed.
  6. Machine according to claim 5, characterized in that
    the pre-press nip (16) of two rolls in the form of a suction roll (17) and a press roll (18) and the water-permeable belt (15) from which the suction roll (17) looping forming wire (10) is formed.
  7. Machine according to claim 5 or 6, characterized in that
    at least one roller in the form of a press roller (18) is wrapped in a water-absorbent band (15) in the form of a press felt (19).
  8. Machine according to one of the preceding claims, characterized in that
    In the press section (4) in front of the press nip there is a moistening device (13), preferably in the form of a steam blow box, for influencing the moisture cross profile of the fibrous web (1).
  9. Machine according to claim 8, characterized in that
    in the press section (4) and / or a subsequent unit, preferably in the dryer section (3), sensors (14) for detecting the moisture cross profile of the fibrous web (1) are arranged, which act at least on the moistening device (13).
  10. Machine according to claim 9, characterized in that
    the sensors (14) also act on the suction device (12) and / or the pre-press nip (16) in the former (2).
  11. Machine according to one of the preceding claims, characterized in that
    the fibrous web (1) leaves the press nip horizontally or inclined downwards, and at least above the upper press felt (6) there is a channel (20) for collecting the water thrown off by the upper press roll (5).
  12. Machine according to one of the preceding claims, characterized in that
    the first drying group (8) consists of at most 2, preferably only one heated drying cylinder (9).
  13. Machine according to one of the preceding claims, characterized in that
    the basis weight of the fibrous web (1) produced is between 50 and 200 g / m 2 , preferably between 50 and 100 g / m 2 .
  14. Machine according to one of the preceding claims, characterized in that
    the fibrous web (1) is formed from a wood-free paper web.
  15. Machine according to one of the preceding claims, characterized in that
    the web speed does not exceed 1500 m / min.
EP20000106510 1999-07-24 2000-03-25 Paper machine Expired - Lifetime EP1072721B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19934875 1999-07-24
DE1999134875 DE19934875A1 (en) 1999-07-24 1999-07-24 Paper machine

Publications (3)

Publication Number Publication Date
EP1072721A2 true EP1072721A2 (en) 2001-01-31
EP1072721A3 EP1072721A3 (en) 2001-08-22
EP1072721B1 EP1072721B1 (en) 2006-06-28

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ID=7915994

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000106510 Expired - Lifetime EP1072721B1 (en) 1999-07-24 2000-03-25 Paper machine

Country Status (5)

Country Link
US (1) US6638395B1 (en)
EP (1) EP1072721B1 (en)
JP (1) JP4717985B2 (en)
CA (1) CA2314347C (en)
DE (2) DE19934875A1 (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1281807A2 (en) * 2001-07-30 2003-02-05 Voith Paper Patent GmbH Machine for the manufacture of a fibrous web
WO2004022845A1 (en) * 2002-09-09 2004-03-18 Metso Paper, Inc A method of making paperboard, a machine for making paperboard and a press section for dewatering a wet fibrous web
EP1978154A1 (en) 2007-04-07 2008-10-08 Voith Patent GmbH Machine for manufacturing a fibrous web
EP2305882A2 (en) 2009-09-30 2011-04-06 Voith Patent GmbH Method and machine for producing a sheet of fibrous material
DE102009045185A1 (en) 2009-09-30 2011-04-07 Voith Patent Gmbh Machine i.e. paper-making machine, for production of e.g. paper web, has pressing arrangement with pressing gap extended in direction of web, and drying device arranged in direction of web between pressing arrangement and smoothing gap
WO2012007212A1 (en) 2010-07-16 2012-01-19 Voith Patent Gmbh Method and machine for producing a fibrous web
DE102010031447A1 (en) 2010-07-16 2012-01-19 Voith Patent Gmbh Method for manufacturing fibrous material course, particularly paper, cardboard or tissue course, involves guiding fibrous material course in press arrangement between two endlessly rotating drainage bands
DE102011004565A1 (en) 2011-02-23 2012-08-23 Voith Patent Gmbh Press section of a machine for producing a fibrous web
DE102011004568A1 (en) 2011-02-23 2012-08-23 Voith Patent Gmbh Press section of a machine for producing a fibrous web
DE102011005747A1 (en) 2011-03-18 2012-09-20 Voith Patent Gmbh Sheet binding device
DE102011081239A1 (en) 2011-08-19 2013-02-21 Voith Patent Gmbh Sheet forming apparatus for manufacturing two or multi-layered cardboard- or packing paper web using machine, has belt that directly incorporates one layer and indirectly incorporates another layer made of fiber material suspension
DE102011082161A1 (en) 2011-09-06 2013-03-07 Voith Patent Gmbh Press section of a machine for producing a fibrous web
DE102011083367A1 (en) 2011-09-26 2013-03-28 Voith Patent Gmbh Former for machine for manufacturing fibrous material web e.g. paper web, from fibrous material suspension, has lower wire, and felt enclosing suction roller and guided over conducting and adjustable rollers for adjusting felt strain
WO2016083172A1 (en) * 2014-11-28 2016-06-02 Voith Patent Gmbh Device for producing a fibrous web
EP1936026B2 (en) 2006-12-21 2017-02-22 Voith Patent GmbH Wet end for a machine producing lengths of fibrous material, in particular paper machines for creating wood-free paper

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DE10108517A1 (en) * 2001-02-22 2002-08-29 Voith Paper Patent Gmbh Moisture profile
FI20020159A (en) * 2002-01-29 2003-07-30 Metso Paper Inc Surface shaping apparatus and method using the apparatus for finishing coated or uncoated fibrous web
JP3691031B2 (en) * 2002-07-19 2005-08-31 三菱重工業株式会社 Paper machine control method
EP1778914B1 (en) 2004-08-16 2011-10-05 Voith Patent GmbH Paper machine comprising a single-nip press
DE102004048156A1 (en) * 2004-10-02 2006-04-06 Voith Paper Patent Gmbh Pressing device in a press section of a machine for producing a fibrous web
DE102004050593A1 (en) * 2004-10-16 2006-04-20 Voith Paper Patent Gmbh Press arrangement
DE202005012994U1 (en) * 2005-08-05 2005-11-03 Voith Paper Patent Gmbh Drying press for wet carton, paper or tissue paper web has three drying cylinders each succeeded by a stabilising suction box
US7811417B2 (en) * 2005-12-30 2010-10-12 Honeywell Asca, Inc. Cross-machine direction actuators for machine clothing
FI120747B (en) 2006-09-21 2010-02-15 Metso Paper Inc Paper or cardboard machine
US20080099170A1 (en) * 2006-10-31 2008-05-01 The Procter & Gamble Company Process of making wet-microcontracted paper
US20090136722A1 (en) * 2007-11-26 2009-05-28 Dinah Achola Nyangiro Wet formed fibrous structure product
FI127367B (en) 2008-03-28 2018-04-30 Valmet Technologies Inc Transfer suction box in a machine with fiber web
DE102011082346A1 (en) 2011-09-08 2013-03-14 Voith Patent Gmbh Method for manufacturing fibrous material web i.e. paper web, involves allowing fibrous material web with press felt to come in contact with smooth surface of backing roll or with press felt, where smooth transfer tape loops backing roll
JP5818607B2 (en) * 2011-09-27 2015-11-18 デュプロ精工株式会社 Paper machine
JP6439347B2 (en) * 2014-09-25 2018-12-19 セイコーエプソン株式会社 Sheet manufacturing equipment
CN107627670A (en) * 2017-08-28 2018-01-26 芜湖润林包装材料有限公司 A kind of corrugated board corner protector blank flat synthesizer

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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1281807A2 (en) * 2001-07-30 2003-02-05 Voith Paper Patent GmbH Machine for the manufacture of a fibrous web
EP1281807A3 (en) * 2001-07-30 2004-01-14 Voith Paper Patent GmbH Machine for the manufacture of a fibrous web
US7192507B2 (en) 2001-07-30 2007-03-20 Voith Paper Patent Gmbh Machine for producing a fibrous material web
WO2004022845A1 (en) * 2002-09-09 2004-03-18 Metso Paper, Inc A method of making paperboard, a machine for making paperboard and a press section for dewatering a wet fibrous web
EP1936026B2 (en) 2006-12-21 2017-02-22 Voith Patent GmbH Wet end for a machine producing lengths of fibrous material, in particular paper machines for creating wood-free paper
EP1978154A1 (en) 2007-04-07 2008-10-08 Voith Patent GmbH Machine for manufacturing a fibrous web
EP2305882A2 (en) 2009-09-30 2011-04-06 Voith Patent GmbH Method and machine for producing a sheet of fibrous material
DE102009045177A1 (en) 2009-09-30 2011-04-07 Voith Patent Gmbh Method and machine for producing a fibrous web
DE102009045185A1 (en) 2009-09-30 2011-04-07 Voith Patent Gmbh Machine i.e. paper-making machine, for production of e.g. paper web, has pressing arrangement with pressing gap extended in direction of web, and drying device arranged in direction of web between pressing arrangement and smoothing gap
DE102010031447A1 (en) 2010-07-16 2012-01-19 Voith Patent Gmbh Method for manufacturing fibrous material course, particularly paper, cardboard or tissue course, involves guiding fibrous material course in press arrangement between two endlessly rotating drainage bands
DE102010031450A1 (en) 2010-07-16 2012-01-19 Voith Patent Gmbh Method and machine for producing a fibrous web
WO2012007212A1 (en) 2010-07-16 2012-01-19 Voith Patent Gmbh Method and machine for producing a fibrous web
DE102011004565A1 (en) 2011-02-23 2012-08-23 Voith Patent Gmbh Press section of a machine for producing a fibrous web
WO2012113467A1 (en) 2011-02-23 2012-08-30 Voith Patent Gmbh Press section of a machine for producing a fibrous web
WO2012113466A1 (en) 2011-02-23 2012-08-30 Voith Patent Gmbh Press section of a machine for producing a fibrous web and method for producing a fibrous web
DE102011004568A1 (en) 2011-02-23 2012-08-23 Voith Patent Gmbh Press section of a machine for producing a fibrous web
EP2678471B1 (en) 2011-02-23 2018-03-14 Voith Patent GmbH Press section of a machine for producing a fibrous web
WO2012126875A1 (en) 2011-03-18 2012-09-27 Voith Patent Gmbh Sheet forming device
DE102011005747A1 (en) 2011-03-18 2012-09-20 Voith Patent Gmbh Sheet binding device
DE102011081239A1 (en) 2011-08-19 2013-02-21 Voith Patent Gmbh Sheet forming apparatus for manufacturing two or multi-layered cardboard- or packing paper web using machine, has belt that directly incorporates one layer and indirectly incorporates another layer made of fiber material suspension
DE102011082161A1 (en) 2011-09-06 2013-03-07 Voith Patent Gmbh Press section of a machine for producing a fibrous web
WO2013034331A1 (en) 2011-09-06 2013-03-14 Voith Patent Gmbh Pressing section of a machine for producing a fibrous web
DE102011083367A1 (en) 2011-09-26 2013-03-28 Voith Patent Gmbh Former for machine for manufacturing fibrous material web e.g. paper web, from fibrous material suspension, has lower wire, and felt enclosing suction roller and guided over conducting and adjustable rollers for adjusting felt strain
WO2016083172A1 (en) * 2014-11-28 2016-06-02 Voith Patent Gmbh Device for producing a fibrous web

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EP1072721B1 (en) 2006-06-28
DE19934875A1 (en) 2001-01-25
CA2314347C (en) 2008-12-30
JP4717985B2 (en) 2011-07-06
DE50013082D1 (en) 2006-08-10
CA2314347A1 (en) 2001-01-24
EP1072721A3 (en) 2001-08-22
JP2001049589A (en) 2001-02-20
US6638395B1 (en) 2003-10-28

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