EP2113607B1 - Machine destinée à la fabrication d'une bande de papier lisse sur un côté - Google Patents

Machine destinée à la fabrication d'une bande de papier lisse sur un côté Download PDF

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Publication number
EP2113607B1
EP2113607B1 EP09154958A EP09154958A EP2113607B1 EP 2113607 B1 EP2113607 B1 EP 2113607B1 EP 09154958 A EP09154958 A EP 09154958A EP 09154958 A EP09154958 A EP 09154958A EP 2113607 B1 EP2113607 B1 EP 2113607B1
Authority
EP
European Patent Office
Prior art keywords
press
assigned
paper web
roll
machine according
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.)
Not-in-force
Application number
EP09154958A
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German (de)
English (en)
Other versions
EP2113607A1 (fr
Inventor
Peter Mirsberger
Jürgen Zenz
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 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
Publication of EP2113607A1 publication Critical patent/EP2113607A1/fr
Application granted granted Critical
Publication of EP2113607B1 publication Critical patent/EP2113607B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D21F5/02—Drying on cylinders
    • 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
    • D21F3/0281—Wet presses in combination with a dryer roll
    • 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
    • D21F5/181—Drying webs by hot air on Yankee cylinder

Definitions

  • the invention relates to a machine for producing a one-sided smooth paper web, with a forming area, a press area and a drying area, in which the rear side of the paper web opposite the side to be smoothed both in a press nip assigned to the press area and in a first press nip assigned to the drying area comes into contact with a press felt, wherein the first drying nip associated Pressnip between a felted pressing element and a smoothing and / or Yankee is formed wherein the paper web is guided after the first drying nip associated press nip by a second drying nip assigned to the press nip.
  • a machine is in the not yet published German patent application 10 2007 027 270.9 described.
  • the invention has for its object to provide an improved machine of the type mentioned, in which the aforementioned problems are eliminated.
  • the highest possible uniformity of smoothness and gloss over the machine width should be given in the widest possible operating window with reduced roughness of the back side of the paper web.
  • this object is achieved in that the second press nip assigned to the drying area is formed between a smooth pressing surface and the smoothing or Yankee cylinder and in which the back side of the paper web comes into contact with the smooth pressing surface.
  • the second pressing nip assigned to the drying area is not felted and formed between the smoothing or Yankee cylinder and a smooth pressing surface, the roughness of the backside is reduced, comparable to an offset press.
  • the front side improves the gloss and smoothness values.
  • the smooth pressing surface which comes into contact with the back side of the paper web is formed by a deflection iris roll provided in particular with an elastic jacket.
  • the deflection-adjusting roller advantageously comprises a non-rotatable yoke, around which the particular elastic roll shell rotates, and between the yoke and the roll shell arranged, distributed transversely to the web running direction in particular hydraulic Anpressechen or support elements.
  • the Anpressechen via a deflection of the adjusting roller associated control and / or Control device individually, in groups and / or jointly controlled.
  • the jacket of the deflection adjustment roller in the roll longitudinal direction is so elastic and / or the Anpresshowen via the control and / or regulating device are controlled so that the deflection adjustment at least substantially to the contour of the surface of the smoothing or Yankeezylinders in the longitudinal direction adapts.
  • the elastic sheath adapts optimally to the contour of the smoothing or Yankee cylinder jacket over a wide range of line force.
  • the circular-cylindrical shape of the deflection-adjusting roller which is considered in cross-section, should at least essentially be maintained.
  • the modulus of elasticity in the longitudinal direction of the deflection adjustment roller is smaller than the elastic modulus in the circumferential direction of the deflection adjustment roller.
  • This deflection adjustment roller may therefore in particular be a so-called "NipcoElast" roller (Voith).
  • the different pressing units can be subjected to the same pressure or at least partially to different pressures.
  • the elastic roll shell preferably has a relation.
  • This roll cover may consist of an elastomeric material, in particular rubber and or polyurethane. There are also composite covers possible, such as carbon fiber or glass fiber reinforced plastics (CFRP, GFRP).
  • CFRP, GFRP carbon fiber or glass fiber reinforced plastics
  • the hardness range of the roll cover is between 0 and 90 Pussey & Jones (P & J), preferably between 10 and 40 P & J, and more preferably in the soft range of 20 P & J. In the hard area preferably between 85 and 95 ShoreD.
  • the elastic roll shell then forms together with the cover the Elastmantel.
  • the smooth pressing surface coming into contact with the rear side of the paper web is formed by a cambered pressure roller provided with an elastic cover preferably made of rubber or polyurethane.
  • a cambered pressure roller provided with an elastic cover preferably made of rubber or polyurethane.
  • the smooth pressing surface coming into contact with the rear side of the paper web is formed by an un-felted shoe press roll which is provided with a smooth pressing jacket.
  • a preferred practical embodiment of the machine according to the invention is characterized in that the paper web to be produced is taken over by the forming area by means of a water-receiving first press felt and guided together with the first press felt and a smooth transfer belt receiving at least substantially no water through the press nip associated with the press area is, led away the first press felt immediately after the pressing nip assigned to the press nip of the paper web and the paper web together with the smooth transfer belt from the press area is then carried away associated press nip, then by means of a particular conditioned water receiving, not passed through the press section associated press nip out second press felt is taken over by the smooth transfer belt and is then guided together with the second press felt through the first press nip assigned to the drying area.
  • the first press felt is guided away from the paper web under an angle of> 0 °, preferably> 10 °, formed with the transfer belt and corresponding to the paper web.
  • the press nip associated with the press area is formed by a shoe press.
  • the front side of the paper web to be smoothed is expediently formed by the lower side of the paper web in relation to the sheet formation.
  • the first press felt is passed as a top felt and the smooth transfer belt as a lower belt through the press nip associated press nip.
  • the paper web is expediently taken over by the second press felt in the area of a pickup roller looped by the second press felt from the smooth transfer belt. Subsequently, the paper web can then be guided together with the second press felt through the first press nip assigned to the drying area.
  • the first press nip forming the drying area is a suction roll, a pickup roll looped by the second press felt, a hard roll or a shoe press unit, in particular a shoe press roll educated.
  • a well-conditioned second press felt can be used, which allows a further increase in dry content to dry contents to, for example, 50% or more. Correspondingly less water must be evaporated.
  • the specific drying costs decrease after, for example, less gas is required for the crowning or Yankee cylinder associated hood heating and / or optionally a smaller smoothing or Yankee cylinder can be used.
  • the paper web is transferred to the smoothing or Yankee cylinder with its side previously brought into contact with the smooth transfer belt.
  • the roughness, for example, generated by the felt contact in the two preceding press nips on the back of the paper web is significantly reduced.
  • the load on the press nip can be varied within a wide range, depending on the respective requirements, without adversely affecting the smoothness, gloss or thickness cross section.
  • the machine according to the invention can be produced particularly advantageously one-sided smooth papers with low back roughness.
  • the basis weight range is from 30 to 120 g / m 2 , preferably in the range from 35 to 70 g / m 2 .
  • the density of the paper after the Yankee cylinder is between 0.65 and 0.77 g / cm 3 , preferably 0.67 to 0.74 g / cm 3 .
  • the papers have a higher air flow resistance, which - measured according to Gurley, in the range between 15 to 90 s / (100ml) and preferably between 25 to 60 s / (100ml).
  • the porosity measured by Bendtsen is in the range from 100 to 700 ml / min, in particular between 150 and 500 ml / min. According to the invention, particularly good roughness values can be achieved, in particular for the rear side, although this has no direct contact with the Yankee cylinder.
  • Fig. 1 shows a schematic partial representation of an exemplary embodiment of a machine 10 for producing a one-sided smooth paper web 12 with a forming region 14, a press area 16 and a drying area 18th
  • the first press felt 20 is led away from the paper web 12 and the smooth transfer belt 26 immediately after the pressing nip 28 assigned to the press region 16.
  • the paper web 12 is taken over by the smooth transfer belt 26 by means of a preferably conditioned, and in particular non-structured, water-absorbing second press felt 30, which is not guided by the press nip 28 assigned to the press region 16.
  • the paper web 12 is then guided together with the second press felt 30 through a first press nip 32 assigned to the drying area 18. Also in this first the drying region 18 associated nip 32 so again a pressing force is generated.
  • the first press felt 20 can be guided away from the paper web 12 immediately after the press nip 28 assigned to the press region 16 under an angle of> 0 °, preferably> 10 °, formed with the transfer belt 26 and corresponding to the paper web 12.
  • the pressing nip 28 associated with the press area 16 may be formed in particular by a shoe press.
  • the shoe press comprises, for example, an overhead shoe press unit, in particular a shoe press roll 36 and a lower counter roll 38.
  • the first press felt 20 can be guided, in particular, as an upper felt and the smooth transfer belt 26, in particular as a lower belt, through the press nip 28 assigned to the press region 16.
  • the paper web 12 is taken over by the second press felt 30 from the smooth transfer belt 26 in the region of a second pickup roll 40 looped by the second press felt 30.
  • the first pressing nip 32 assigned to the drying region 18 is formed, for example, between a suction roll 48 separated from the second pickup roll 40 and a smoothing and / or Yankee cylinder 44.
  • the suction roller 48 serves as a pressing element cooperating with the smoothing or Yankee cylinder 44.
  • the relevant pressing element is formed simultaneously by the second pickup roller 40.
  • the smoothing or Yankee cylinder 44 may be associated with a drying hood 46.
  • the first pressing nip 32 assigned to the drying region 18 is formed between the felted pressing element 48 and the smoothing or Yankee cylinder 44, wherein the pressing element 48 in the present case is formed, for example, by a suction roll.
  • the paper web 12 is guided in the web running direction L after the first press nip 32 assigned to the drying region 18 by a second press nip 50 assigned to the drying region 18, which is formed between a smooth pressing surface 52 and the smoothing or Yankee cylinder 44 is and in which the back 42 of the paper web 12 comes into contact with the smooth pressing surface 52.
  • the smooth pressing surface 52 which comes into contact with the back side 42 of the paper web 12 is in the present case, for example, one with an elastic sheath 54 (cf. Fig. 2 formed deflection roll 56 formed.
  • This may in particular be a so-called “NipcoElast” roll (Voith).
  • Fig. 2 an embodiment of such a “NipcoElast” roller is shown.
  • such a deflection set roller 56 comprises a non-rotatable yoke 58, around which the elastic roll shell 54 rotates, and arranged between the yoke 58 and the roll shell 54, transversely distributed to the web running direction L hydraulic Anpresstechniken or support elements 60th Die
  • Fig. 2 shows a schematic longitudinal sectional view of an end portion and a schematic cross-sectional view of the elastic deflection set roller 56.
  • the elastic roll shell 54 has a roll cover 62 and thus forms the Elastmantel 64 of the deflection set roller 56th
  • the roll cover 62 of the elastic roll shell 54 is made of an elastomeric material, in particular of rubber and / or polyurethane. There are also composite covers possible, such as carbon fiber or glass fiber reinforced plastics (CFRP, GFRP).
  • CFRP carbon fiber or glass fiber reinforced plastics
  • the hardness range of the Roller coating. 62 is 20 P & J. In the hard area preferably between 85 and 95 ShoreD.
  • the pressing units 60 may be individually, groupwise and / or jointly controllable via a control and / or regulating device associated with the deflection adjustment roller 56.
  • the various, for example, hydraulic pressing units 60 can therefore be acted upon, for example, by the same pressure or at least partially by a different pressure.
  • the jacket 54 of the deflection adjustment roller 56 is so elastic in the roll longitudinal direction and / or the contact units 60 can be controlled via the control and / or regulating device in such a way that the deflection adjustment roller 56 or its elastomer jacket 64 in particular is adapted over a large line force range at least substantially to the contour of the surface of the smoothing or Yankee cylinder 44 in the longitudinal direction.
  • the roll shell 54 can maintain its at least substantially circular-cylindrical cross-sectional shape (compare FIG. 3).
  • the modulus of elasticity in the longitudinal direction of the deflection adjustment roller is smaller than the elastic modulus in the circumferential direction.
  • the elastic deflection roll or "NipcoElast" roll 56 with elast jacket results in a significant reduction of the back roughness with uniform, intensive contact pressure on the smoothing or Yankee cylinder for optimum smoothness and gloss.

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  • Paper (AREA)

Claims (18)

  1. Machine (10) pour la fabrication d'une bande de papier lisse d'un côté (12), comprenant une section de formage (14), une section de pressage (16) et une section de séchage (18), dans laquelle la face arrière (42) de la bande de papier (12) opposée à la face avant (34) à lisser vient en contact à la fois dans un pinçage (28) associé à la section de pressage (16) et dans un premier pinçage (32) associé à la section de séchage (18), à chaque fois avec un feutre de pressage (20, 30), le premier pinçage (32) associé à la section de séchage (18) étant formé entre un élément de pressage à feutre (48) et un cylindre de lissage et/ou un cylindre Yankee (44),
    la bande de papier (12) étant guidée dans la direction d'avance de la bande (L) après le premier pinçage (32) associé à la section de séchage (18) à travers un deuxième pinçage (50) associé à la section de séchage (18), caractérisée en ce que le deuxième pinçage (50) associé à la section de séchage est formé entre une surface de pressage lisse (52) et le cylindre de lissage ou le cylindre Yankee (44) et dans ce pinçage, la face arrière (42) de la bande de papier (12) vient en contact avec la surface de pressage lisse (52).
  2. Machine selon la revendication 1,
    caractérisée en ce que
    la surface de pressage lisse (52) venant en contact avec la face arrière (42) de la bande de papier (12) est formée par un rouleau d'ajustement de la flexion (56) pourvu notamment d'une enveloppe élastique (54, 64).
  3. Machine selon la revendication 2,
    caractérisée en ce que
    le rouleau d'ajustement de la flexion (56) comprend une armature (58) fixée en rotation, autour de laquelle s'étend circonférentiellement l'enveloppe de rouleau (54) notamment élastique, et des unités de pressage (60) notamment hydrauliques disposées entre l'armature (58) et l'enveloppe de rouleau (54), et réparties transversalement à la direction d'avance de la bande.
  4. Machine selon la revendication 3,
    caractérisée en ce que
    les unités de pressage (60) peuvent être commandées individuellement, en groupe et/ou ensemble par le biais d'un dispositif de commande et/ou de régulation associé au rouleau d'ajustement de la flexion (56).
  5. Machine selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    l'enveloppe (54) du rouleau d'ajustement de la flexion (56) est élastique dans la direction longitudinale du rouleau et/ou les unités de pressage (60) peuvent être commandées par le biais du dispositif de commande et/ou de régulation de telle sorte que le rouleau d'ajustement de la flexion s'adapte au moins essentiellement au contour de la surface du cylindre de lissage ou du cylindre Yankee (44) dans sa direction longitudinale.
  6. Machine selon la revendication 1,
    caractérisée en ce que
    la surface de pressage lisse (52) venant en contact avec la face arrière (42) de la bande de papier (12) est formée par un rouleau de pressage bombé pourvu d'un revêtement élastique, de préférence en caoutchouc ou en polyuréthane.
  7. Machine selon la revendication 1,
    caractérisée en ce que
    la surface de pressage lisse (52) venant en contact avec la face arrière (42) de la bande de papier (12) est formée par un rouleau à sabot comprenant une enveloppe de pressage lisse.
  8. Machine selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    la bande de papier à fabriquer (12) est reprise au moyen d'un premier feutre de pressage (20) recevant de l'eau depuis la section de formage (14) et est guidée conjointement avec le premier feutre de pressage (20) et une courroie de transfert lisse (26) ne recevant au moins essentiellement pas d'eau à travers le pinçage (28) associé à la section de pressage (16), le premier feutre de pressage (20) est guidé immédiatement après le pinçage (28) associé à la section de pressage (16) à l'écart de la bande de papier (12) et la bande de papier (12), conjointement avec la courroie de transfert lisse (26), est guidée à l'écart du pinçage (28) associé à la section de pressage (16), ensuite, au moyen d'un deuxième feutre de pressage (30) recevant notamment de l'eau traitée, n'étant pas guidé à travers le pinçage (28) associé à la section de pressage (16), est reprise par la courroie de transfert lisse (26) et ensuite, est guidée conjointement avec le deuxième feutre de pressage (30) à travers le premier pinçage (32) associé à la section de séchage (18).
  9. Machine selon la revendication 8,
    caractérisée en ce que
    le premier feutre de pressage (20), immédiatement après le pinçage (28) associé à la section de pressage (16), est guidé suivant un angle supérieur à 0°, de préférence supérieur à 10°, formé avec la courroie de transfert (26) et, de manière correspondante, avec la bande de papier (12), à l'écart de la bande de papier (12).
  10. Machine selon la revendication 8 ou 9,
    caractérisée en ce que
    le pinçage (28) associé à la section de pressage (16) est formé par une presse à sabot (36, 38).
  11. Machine selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    la face avant (34) à lisser de la bande de papier (12) est formée par la face inférieure de la bande de papier (12), par rapport à la formation de feuilles.
  12. Machine selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    le premier feutre de pressage (20), en tant que feutre supérieur, et la courroie de transfert lisse (26), en tant que courroie inférieure, sont guidés à travers le pinçage (28) associé à la section de pressage (16).
  13. Machine selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    la bande de papier (12) est reprise dans la région d'un rouleau de reprise (40) entouré par le deuxième feutre de pressage (30) par le deuxième feutre de pressage (30) depuis la courroie de transfert lisse (26).
  14. Machine selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    l'élément de pressage formant conjointement avec le cylindre de lissage ou le cylindre Yankee (44) le pinçage (32) associé à la section de séchage (18) est formé par un rouleau aspirant (48).
  15. Machine selon l'une quelconque des revendications précédentes,
    caractérisée en ce que l'élément de pressage (48) formant conjointement avec le cylindre de lissage ou le cylindre Yankee (44) le pinçage (32) associé à la section de séchage (18) est formé par le rouleau de reprise entouré par le deuxième feutre de pressage (30).
  16. Machine selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    l'élément de pressage formant conjointement avec le cylindre de lissage ou le cylindre Yankee (44) le premier pinçage (32) associé à la section de séchage (18) est formé par un rouleau dur.
  17. Machine selon l'une quelconque des revendications 1 à 15,
    caractérisée en ce que
    l'élément de pressage (48) formant conjointement avec le cylindre de lissage ou le cylindre Yankee (44) le premier pinçage (32) associé à la section de séchage (18) est formé par une unité de presse à sabot, notamment par un rouleau de presse à sabot.
  18. Machine selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    la bande de papier (12) avec sa face venue en contact avec la courroie de transfert lisse (26) est transférée au cylindre de lissage ou au cylindre Yankee (44).
EP09154958A 2008-04-28 2009-03-12 Machine destinée à la fabrication d'une bande de papier lisse sur un côté Not-in-force EP2113607B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008001410A DE102008001410A1 (de) 2008-04-28 2008-04-28 Maschine zur Herstellung einer einseitig glatten Papierbahn

Publications (2)

Publication Number Publication Date
EP2113607A1 EP2113607A1 (fr) 2009-11-04
EP2113607B1 true EP2113607B1 (fr) 2011-01-19

Family

ID=40974653

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09154958A Not-in-force EP2113607B1 (fr) 2008-04-28 2009-03-12 Machine destinée à la fabrication d'une bande de papier lisse sur un côté

Country Status (4)

Country Link
EP (1) EP2113607B1 (fr)
CN (1) CN101570943A (fr)
AT (1) ATE496169T1 (fr)
DE (2) DE102008001410A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010017648A1 (de) * 2010-06-29 2011-12-29 Papierwerke Lenk Ag Verfahren zur Herstellung von einseitig glattem Krepppapier
DE102011077523A1 (de) 2011-06-15 2012-12-20 Voith Patent Gmbh Maschine zur Herstellung einer einseitig-glatten Faserstoffbahn
DE102014205381A1 (de) 2014-03-24 2015-09-24 Voith Patent Gmbh Maschine zur Herstellung einer Faserstoffbahn
CN107938419A (zh) * 2017-12-19 2018-04-20 山东信和造纸工程股份有限公司 一种卫生纸机软靴压装置及其应用
CN108611904A (zh) * 2018-06-26 2018-10-02 山东信和造纸工程股份有限公司 一种卫生纸机的独立靴压装置及其工作方法
WO2024008405A2 (fr) * 2022-07-05 2024-01-11 Voith Patent Gmbh Machine et procédé

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB883891A (en) * 1958-08-30 1961-12-06 Spooner Dryer & Eng Co Ltd Improvements in or relating to treatment of materials, such as the drying of paper
US3198695A (en) 1963-02-14 1965-08-03 Beloit Corp Grooved press roll assemblies with a yankee drier
FI83679C (fi) * 1989-09-15 1991-08-12 Teollisuusmittaus Oy Huva foer en kontakttorkcylinder.
DE102007027270A1 (de) 2007-06-11 2008-12-18 Voith Patent Gmbh Verfahren und Maschine zur Herstellung einer einseitig glatten Papierbahn

Also Published As

Publication number Publication date
DE102008001410A1 (de) 2009-10-29
ATE496169T1 (de) 2011-02-15
DE502009000295D1 (de) 2011-03-03
CN101570943A (zh) 2009-11-04
EP2113607A1 (fr) 2009-11-04

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