WO2005111304A1 - Cylindre aspirant de machine pour produire une bande de matiere fibreuse - Google Patents

Cylindre aspirant de machine pour produire une bande de matiere fibreuse Download PDF

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Publication number
WO2005111304A1
WO2005111304A1 PCT/EP2005/051308 EP2005051308W WO2005111304A1 WO 2005111304 A1 WO2005111304 A1 WO 2005111304A1 EP 2005051308 W EP2005051308 W EP 2005051308W WO 2005111304 A1 WO2005111304 A1 WO 2005111304A1
Authority
WO
WIPO (PCT)
Prior art keywords
suction
bores
suction roller
lateral surface
strips
Prior art date
Application number
PCT/EP2005/051308
Other languages
German (de)
English (en)
Inventor
Peter Kahl
Torben Schlieckau
Roland Mayer
Original Assignee
Voith 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
Application filed by Voith Patent Gmbh filed Critical Voith Patent Gmbh
Priority to JP2007512144A priority Critical patent/JP2007536183A/ja
Priority to EP05717120A priority patent/EP1743069A1/fr
Publication of WO2005111304A1 publication Critical patent/WO2005111304A1/fr
Priority to US11/557,410 priority patent/US20070084580A1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/18—Drying webs by hot air
    • D21F5/182—Drying webs by hot air through perforated cylinders
    • D21F5/184—Surfaces thereof
    • 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
    • D21F3/10—Suction rolls, e.g. couch rolls
    • D21F3/105—Covers thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/14—Drying webs by applying vacuum
    • D21F5/143—Drying webs by applying vacuum through perforated cylinders

Definitions

  • the invention relates to a suction roll in a dryer section of a machine for producing a paper, board, tissue or another fibrous web, which has bores for sucking the fibrous web in its outer circumferential surface.
  • DE 100 47 369 A1 describes a drying roller for drying a material web, which serves in particular for guiding and holding a paper web which is acted upon by means of a drying gas.
  • the drying roller has a jacket over which the material web is guided during operation of the roller while partially wrapping around the roller.
  • gas passage openings are present.
  • means are provided for conveying gas through the roll shell.
  • a second, gas-tight jacket is provided, which forms an annular space with the outer roll shell. The annular space is sealed gastight relative to the interior of the inner shell.
  • a Tro ⁇ kenen in a drying section of a machine for producing a material web comprises a number of cylinders, which - viewed in the direction of the material web - alternately heated and cooled, around which the material web is guided in a meandering manner together with a porous conveyor belt and with a metal band.
  • the material web is arranged between the conveyor belt and the metal strip.
  • the metal strip or conveyor belt is highly biased, and the cylinders are associated with additional heating devices which act on areas of the circumference in which the material web rest with the conveyor belt and the metal strip.
  • Suction rolls have become known for use in a dryer section of a machine for producing a fibrous web, which have a uniform, open area, ie provided with bores or other openings, over their width.
  • Such suction rolls have the disadvantage that they are not dissipated fast enough when transferring a web of paper, the boundary layer of air that forms between the paper web and the roller or resting on her sieve, not fast enough. Even when transferring paper webs difficulties may occur.
  • the proportion of the open area over the entire area of the circumferential surface of the suction roll the amount of air to be extracted would become too large.
  • this object of a suction roll of the type mentioned is achieved in that the lateral surface is divided into more than two areas with different numbers of holes per unit area or each with holes with different diameters per unit area.
  • the lateral surface of the roller thus has, for example, at least three regions, with a higher open area being present in two regions than on the remaining lateral surface of the roller.
  • the higher open area is either due to the fact that the number of holes in these two areas is greater than in the other area or that the holes each have a larger diameter than in the other area. Both measures (higher number of holes, holes with larger diameter) can each be combined.
  • the lateral surface of the suction roll on at least one of its front edges an area with a compared to the number of holes per unit area In the central region of the lateral surface increased number of holes or having holes with a larger diameter.
  • this configuration of the suction roll is particularly suitable for transferring a narrow transfer strip whose width corresponds approximately to the width of the peripheral region with 5 of the increased number of holes, so that the transfer strip is securely sucked during the transfer operation, without simultaneously high Saugluftmaschinee otherwise too large openings, not yet covered by the fibrous web surface of the shell of the suction roll arise.
  • the lateral surface has circumferentially extending strips with a per unit area compared to the areas between the strips of the lateral surface increased number of holes or holes with larger diameter.
  • the lateral surface has a strip extending over it in a spiral shape or a plurality of strips extending in a spiral over it with an increased number of bores or bores with a larger diameter per unit area than the remaining region of the lateral surface.
  • the suction roll has strips extending substantially in the direction of the longitudinal axis of the suction roll or having diagonal stripes with an increased number of bores or with bores of larger diameter per unit area than the areas between the strips.
  • the strips preferably have a width of at least 70 mm, in particular from 100 mm to 1000 mm.
  • the strips have a distance of at least 100 30 mm, in particular from 200 mm to 2000 mm, to each other.
  • the distances between the strips and their width can also vary.
  • the suction roll on its lateral surface grooved depressions.
  • the recesses may have a depth of 1 to 10 mm and a width of 1 to 10 mm. Preferably, the recesses have a distance of 5 to 30 mm from each other.
  • suction rolls are used with a large diameter; preferred are suction rolls with a diameter of at least 3 m.
  • suction roll is looped around by a drying wire and a fibrous web lying on the outside of the dryer wire, wherein a baffle dryer is used to dry the fibrous web to the suction roll.
  • the suction roll is connected via a rotary feedthrough in its shaft with a vacuum source.
  • the suction roll is vacuumed via a suction box sealingly attached to its lateral surface.
  • the suction roll has an inner gas-tight jacket, wherein between the inner shell and the outer, the bores having coat an annular vacuum space is present.
  • the proportion of the area occupied by the holes in the areas having a smaller number of holes or bores with a smaller diameter on the lateral surface between 0.2 and 2.5%, in particular between 1 and 1.5%.
  • the proportion of the area occupied by the bores is preferably chosen such that, compared with the remaining areas of the lateral surface, a higher number of bores or strips is at least 1.5 times the area occupied by bores in the remaining areas.
  • FIG. 1 is a side view of a suction roll in a dryer section in conjunction with a baffle dryer
  • FIG. 2 is a plan view of the jacket of a suction roll with two arranged at their edges areas having a higher number of holes per unit area, on the mantle of a suction roll with transverse strips, which have a higher number of holes per unit area than the remaining areas
  • Fig. 4, 5 are further plan views of the shells of suction rolls with diagonal or spiral strips, which has a higher number of holes per unit area have the remaining areas.
  • a suction roll 1 (Fig. 1) is arranged after a press section of a machine for producing a fibrous web 2 at the entrance of a dryer section.
  • a fibrous web 2 is guided around the jacket of the suction roll 1 via a first deflection roll 3 together with a drying wire downwards and is led further upwards via a further deflection roll 4.
  • a stabilizer 5 is positioned above the suction roll 1, which provides the necessary negative pressure, so that the suction roll 1, the fibrous web 2 can suck on its lateral surface through the dryer fabric through.
  • baffle dryer 6 On the underside of the suction roll 1 and a baffle dryer 6 is arranged, which essentially covers the - viewed in the web running direction - output side lower quadrant of the suction roll 1 and the Fiber web 2 dries.
  • the suction roll 1 (FIG. 2) has areas 8, 9 at the edges of its lateral surface 7, which have an increased number of holes or openings per unit area in relation to a region 10 in the middle between the regions 8, 9. is sucked by the air from the inside of the suction roll 1.
  • this embodiment of the invention is suitable for listing a Aufzhoustsammlungs a fibrous web 2, wherein the AufzhoustMail is held securely over one of the areas 8, 9, because in these areas 8, 9, a greater suction force acts as in the area 10 in the middle of Suction roll 1.
  • the suction roll 1 has transverse strips 11 which extend at equal distances over their entire width, wherein regions 12 are arranged between the transverse strips 11 with a smaller number of bores per unit area.
  • the suction roll 1 has on its lateral surface 7 a single spirally extending strip 13 with an increased number of bores in relation to a region 14 adjacent to the strip 13.
  • a plurality of diagonally extending strips 15, 16, 17 may be present with a number of bores increased in relation to areas 18, 19, 20, 21 between them.

Landscapes

  • Paper (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

L'invention concerne un cylindre aspirant (1) situé dans une partie sèche de machine pour produire une bande de papier, de carton, de tissu ou une bande d'une autre matière fibreuse, qui présente des perforations dans sa surface extérieure (7), pour aspirer ladite bande de matière fibreuse. Ledit cylindre aspirant se caractérise en ce que la surface extérieure (7) est divisée en zones comportant des nombres différents de perforations par unité de surface.
PCT/EP2005/051308 2004-05-07 2005-03-22 Cylindre aspirant de machine pour produire une bande de matiere fibreuse WO2005111304A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2007512144A JP2007536183A (ja) 2004-05-07 2005-03-22 繊維材料ウェブを生産する機械内のサクションロール
EP05717120A EP1743069A1 (fr) 2004-05-07 2005-03-22 Cylindre aspirant de machine pour produire une bande de matiere fibreuse
US11/557,410 US20070084580A1 (en) 2004-05-07 2006-11-07 Suction roll in a machine for producing a fibrous web

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004023320.9 2004-05-07
DE102004023320 2004-05-07

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/557,410 Continuation US20070084580A1 (en) 2004-05-07 2006-11-07 Suction roll in a machine for producing a fibrous web

Publications (1)

Publication Number Publication Date
WO2005111304A1 true WO2005111304A1 (fr) 2005-11-24

Family

ID=34961394

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/051308 WO2005111304A1 (fr) 2004-05-07 2005-03-22 Cylindre aspirant de machine pour produire une bande de matiere fibreuse

Country Status (5)

Country Link
US (1) US20070084580A1 (fr)
EP (1) EP1743069A1 (fr)
JP (1) JP2007536183A (fr)
CN (1) CN1950568A (fr)
WO (1) WO2005111304A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016146575A1 (fr) 2015-03-13 2016-09-22 4Sc Discovery Gmbh Inhibiteurs kv1.3 et application médicale correspondante
EP3556922A1 (fr) * 2018-04-16 2019-10-23 Trützschler GmbH & Co. KG Dispositif de traitement thermique d'une bande de matière textile

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5123760B2 (ja) 2008-06-30 2013-01-23 ユニ・チャーム株式会社 間欠切断転写装置
JP5280754B2 (ja) * 2008-06-30 2013-09-04 ユニ・チャーム株式会社 間欠切断転写装置
DE102009028215B3 (de) * 2009-08-04 2010-09-09 Voith Patent Gmbh Kombination eines Pressfilzes mit einem Presswalzenbezug und/oder einem Saugwalzenbezug für eine Papiermaschine
CN102373643A (zh) * 2010-08-09 2012-03-14 河南省江河纸业有限责任公司 一种真空压榨辊
DE102011110671A1 (de) * 2011-08-19 2013-03-28 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Karde für Baumwolle, Chemiefasern u. dgl., die zwischen einem Abnehmer und zwei Quetschwalzen angeordnet ist
US10308462B2 (en) 2013-09-06 2019-06-04 Kimberly-Clark Worldwide, Inc. Plate for an anvil roll with a reduced-vacuum region for use in a slip and cut system and method of using the same
DE102015118157A1 (de) * 2015-10-23 2017-04-27 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung zum thermischen Behandeln einer textilen Warenbahn
CN106679377B (zh) * 2016-11-08 2018-12-18 南通德和布业有限公司 一种摆动式快速吸湿机构
BE1024740B1 (nl) * 2016-11-22 2018-06-18 Wiele Michel Van De Nv Inrichting en werkwijze voor het vervaardigen van gekroesd textielgaren en koeltrommel voor een dergelijke inrichting
DE102018113833A1 (de) * 2018-06-11 2019-12-12 Voith Patent Gmbh Gerillte Walze und Einrichtung umfassend dieselbe

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4241400A1 (en) * 1991-12-19 1993-06-24 Escher Wyss Gmbh Paper web take=up for drying section of paper mfg. machine - by using suction roller inner chambers with stepless control to set suction action to catch end of web at leader sides
DE19619530A1 (de) * 1996-05-15 1997-11-20 Voith Sulzer Papiermasch Gmbh Vorrichtung zur Herstellung einer Materialbahn
DE10047369A1 (de) * 2000-09-25 2002-04-11 Voith Paper Patent Gmbh Trockenwalze zum Trocknen einer Materialbahn
EP1321569A1 (fr) * 2001-12-21 2003-06-25 Voith Paper Patent GmbH Rouleau aspirant

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4366025A (en) * 1981-06-04 1982-12-28 Beloit Corporation Suction press roll
FI104001B1 (fi) * 1998-06-26 1999-10-29 Valmet Corp Kuivatusosa
EP1158092B1 (fr) * 2000-05-24 2006-09-06 Voith Paper Patent GmbH Section de séchage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4241400A1 (en) * 1991-12-19 1993-06-24 Escher Wyss Gmbh Paper web take=up for drying section of paper mfg. machine - by using suction roller inner chambers with stepless control to set suction action to catch end of web at leader sides
DE19619530A1 (de) * 1996-05-15 1997-11-20 Voith Sulzer Papiermasch Gmbh Vorrichtung zur Herstellung einer Materialbahn
DE10047369A1 (de) * 2000-09-25 2002-04-11 Voith Paper Patent Gmbh Trockenwalze zum Trocknen einer Materialbahn
EP1321569A1 (fr) * 2001-12-21 2003-06-25 Voith Paper Patent GmbH Rouleau aspirant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016146575A1 (fr) 2015-03-13 2016-09-22 4Sc Discovery Gmbh Inhibiteurs kv1.3 et application médicale correspondante
EP3556922A1 (fr) * 2018-04-16 2019-10-23 Trützschler GmbH & Co. KG Dispositif de traitement thermique d'une bande de matière textile

Also Published As

Publication number Publication date
EP1743069A1 (fr) 2007-01-17
US20070084580A1 (en) 2007-04-19
JP2007536183A (ja) 2007-12-13
CN1950568A (zh) 2007-04-18

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