EP0928843B1 - Dispositif de pressage - Google Patents

Dispositif de pressage Download PDF

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Publication number
EP0928843B1
EP0928843B1 EP98121252A EP98121252A EP0928843B1 EP 0928843 B1 EP0928843 B1 EP 0928843B1 EP 98121252 A EP98121252 A EP 98121252A EP 98121252 A EP98121252 A EP 98121252A EP 0928843 B1 EP0928843 B1 EP 0928843B1
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EP
European Patent Office
Prior art keywords
roll
press
arrangement according
differential pressure
press arrangement
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
Application number
EP98121252A
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German (de)
English (en)
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EP0928843A3 (fr
EP0928843A2 (fr
Inventor
Hans Prinzing
Rainer Bentele
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Voith Patent GmbH
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Voith Paper Patent GmbH
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Publication date
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Publication of EP0928843A2 publication Critical patent/EP0928843A2/fr
Publication of EP0928843A3 publication Critical patent/EP0928843A3/fr
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Publication of EP0928843B1 publication Critical patent/EP0928843B1/fr
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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
    • 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
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/06—Means for regulating the pressure
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0206—Controlled deflection rolls
    • D21G1/0213—Controlled deflection rolls with deflection compensation means acting between the roller shell and its supporting member
    • D21G1/022—Controlled deflection rolls with deflection compensation means acting between the roller shell and its supporting member the means using fluid pressure

Definitions

  • the invention relates to a press arrangement for treating a fibrous web, in particular paper and / or cardboard web, with a between a shoe press unit and a counter roll formed in the web running direction extended press nip and one between the counter roll and a further roll formed nip, the shoe press unit a rotating around a non-rotatable carrier in the area of the extended Press nip by at least one support element on the carrier supported flexible press belt and the counter roll as a deflection compensation roller with a rotating around a non-rotatable carrier Roll jacket is formed in the region of the extended press nip again supported by at least one support element on the carrier in question , and wherein the preferably pressurized fluid actuated support elements are designed and acted upon so that the generated by the support elements on the flexible press belt Shoe press unit or the roller jacket of the counter-roller acting inner Contact pressure sets a differential pressure.
  • nip controlled nip line force that is as flat as possible can be generated by a corresponding Differential pressure or a corresponding line force difference between the shoe press unit and the counter roller is reached.
  • the differential pressure causes the in the extended nip between the Shoe press unit and the counter-acting line force not in full
  • the circumference is balanced by the inner support elements of the counter roller becomes.
  • the remaining force causes the counter roll to deform both in the extended nip formed with the shoe press unit, the be easily balanced by the flexible support element of the shoe press unit can, as well as in between the counter roller and the other roller formed nip.
  • the differential pressure is selected, for example, that a greater contact pressure is set in the shoe press unit than in the counter roll, so occurs between the counter roll and the other Roll formed nip a bulge of the counter roll. by virtue of this bulge can, for example, the counter roll and additional roller with less crowning for deflection compensation be carried out. With such less crowning the differential speeds between the center of the roller and the Roll ends are kept small. Between the shoe press unit and the counter-roller can thus in particular have such a line force difference are generated with a deflection of the counter roll in the nip causes and thus a reduction in the required crowning is made possible in this nip.
  • a known central roller has an additional row of support elements, provided in the direction of the nip towards the previous roller and regulates the deflection compensation in this nip.
  • Such an additional row of support elements is now significant additional effort and correspondingly expensive.
  • the aim of the invention is to provide a simple, inexpensive construction To create press arrangement of the type mentioned, in which the Line force in the nip can be set in a relatively wide range and the resultant in this nip transverse to the web running direction Pressing pressure profile can be varied without an additional support element rows the counter roller is required.
  • differential pressure is changeable. It is preferable with the differential pressure also the line force difference between the shoe press unit and the counter roller variable.
  • the shoe press unit and the counter roller can in particular cause the deformation variable in the nip between the counter roll and the other roll to be influenced. This means that this is otherwise not deflection-controlled Roller gap line forces adjustable over a wide range, always ensuring an optimal baling cross profile is.
  • Another advantage of the variably variable differential pressure between the shoe press unit and the counter roller is that with a targeted adjustment of the differential pressure cross profile corrections in nip formed between the counter roll and the further roll can be made. The result is also the moisture cross profile adjustable after the press in the desired way.
  • the exchange the further roll forming the nip with the counter roll simplified another roller with a different stiffness, being different Rigidity, for example on the material, the wall thickness or, in the case of a suction roll, can go back to the drilling pattern.
  • there is also an easier adaptation to another Size of the deformation in the nip for example, by a changed vacuum in the further roller can be caused.
  • differential pressure or the line force difference is continuously changeable at least in some areas.
  • To change the differential pressure can, for example, by Support elements of the shoe press unit generated on their flexible press belt acting internal contact pressure or, for example, by generated the support elements of the counter roll, acting on the roll shell internal contact pressure can be changed. Basically, however, it is also possible that to change the differential pressure both by generated the support elements of the shoe press unit, on their flexible Press tape acting internal contact pressure as well as that through the support elements the counter roll generated, acting on the roll shell inner Contact pressure is changeable.
  • Press arrangement are the support elements of the shoe press unit and the support elements of the counter roll to a common pressure fluid line connected, wherein in the pressure fluid connection between the common pressure fluid line and the one or more support elements Shoe press unit and / or in the pressurized fluid connection between the common pressure fluid line and the one or more support elements Adjustable counter pressure roller are provided and the Differential pressure can be changed via this variable pressure reducing means.
  • the support elements of the shoe press unit and / or the support elements of the Counter roll can be sent individually, in groups or in total to the common one Pressurized fluid line must be connected.
  • Support elements can be between at least one, preferably each of these Groups of support elements and the common pressure fluid line adjustable pressure reducing means can be provided.
  • To reduce the Pressure individually enclosed on the common pressure fluid line Support elements can be between at least one, preferably each of these individual support elements and the common pressure fluid line adjustable pressure reducing means can be provided.
  • the Pressure reducing means at least one variably adjustable valve.
  • the differential pressure or the line force difference can, for example, be mechanical, hydraulic, pneumatic, manual, remote controlled, on site, be adjustable starting from a control room and / or process-controlled.
  • the differential pressure is medium Predeterminable characteristics depending on the line force in the nip adjustable.
  • the differential pressure can also depend on the line force correction specifications be adjustable for the nip, the Line force correction specifications preferably via an electronic control can be entered and / or via corresponding signals of a process control system to be provided.
  • the differential pressure can in particular also via a control system comprising at least one closed control loop be adjustable.
  • the line force can be changed in a further nip, the is formed between the further roller and an additional roller.
  • the additional roller can be, for example, a suction roller act.
  • At least the counter roller and / or the one with it is expedient the further roll forming the nip is cambered.
  • Such a crowning can be due to the changeable differential pressure or the changeable Line force difference will be less than usual. In particular Such a crowning can also be completely dispensed with in application cases become.
  • the press arrangement according to the invention is the shoe press unit by a shoe press roll with a flexible press jacket formed as a press belt.
  • the shoe press unit is expediently above the counter roller arranged.
  • the roller jacket the counter-roller at its ends not radially displaceable on the relevant Carrier stored.
  • the level of action of the at least one support element of the counter roll in relation to the plane of action of the at least one support element of the shoe press unit is slightly inclined. In principle, however, it is also possible that the Plane of action of the at least one support element of the counter roll the plane of action of the at least one support element of the shoe press unit at least essentially coincides.
  • the pressure effective Areas of the support elements of the counter roller unequal to pressure-effective surfaces of the at least one support element of the Shoe press.
  • An effect similar to that from the impact level of the extended press nip inclined support elements of the counter roller can accordingly in particular also be achieved in that the pressure-effective Areas of these support elements not equal to the surfaces of the support elements the shoe press unit.
  • Figures 1 and 2 is a first in a purely schematic representation Embodiment of a treatment of a fibrous web 10 as in particular a press arrangement serving paper and / or cardboard web shown.
  • This press arrangement has one between a shoe press unit, here a shoe press roll 12, and a counter roll 14 formed in Web running direction L extended press nip 16 and one between the Counter roll 14 and another roll, here a suction roll 18, formed Nip 20.
  • the shoe press roll 12 arranged directly above the counter roll 14 has a rotating around a non-rotatable carrier 22 in the area of extended press nip 16 by a support element 24 on the carrier 22nd supported flexible press jacket 26 serving as a press belt.
  • the counter roll 14 is in the present case as a deflection compensation roll educated. It has a circumferential around a non-rotatable carrier 28 Roller jacket 30, in the area of the extended press nip 16 by a row extending transversely to the web running direction L. Support elements 32 is supported on the carrier 28 in question. As with 1 can be seen, the suction roller 18 is obliquely below the counter roller 14 is arranged. The rollers 12, 14 and 18 are in one chair not shown stored. Through the press nips 16 and 20 run next to the fibrous web 10 drainage felts 34 for inclusion of water pressed out of the fibrous web 10.
  • the hydraulic, in the form of an axially running bar on the carrier 22 supported support member 24 of the shoe press roll 12 is present Case provided with a concave support surface 36.
  • a concave support surface 36 instead of one on one hydraulic pressure pad mounted bar is especially the Use of several support elements 24 possible.
  • the lubrication of the Gap between the support surface 36 and the inner surface of the flexible Press jacket 26 can be done hydrostatically and / or hydrodynamically.
  • the roll shell 30 of the counter roll 14 is not radial at its ends slidably mounted on the carrier 28.
  • the plane of action 38 of the support elements 32 is Counter roll 14 opposite the action plane 40 of the support element 24 the shoe press roll 12 slightly inclined.
  • the angle of inclination lies here ⁇ preferably in a range from about 2 ° to about 15 ° and in particular in a range from about 4 ° to about 8 °.
  • the plane of action 38 of the support members 32 of the Counter roll 14 with the effective plane 40 of the support element 24 Shoe press roll 12 at least essentially coincides.
  • roller jacket 30 of the counter-roller 14 Since the roller jacket 30 of the counter-roller 14 has bearings 42 at the ends is fixed on the carrier 28, the effect of the inclination of the support elements 32 (cf. in particular FIG. 1) resulting deformation of the roll shell 30 of the counter roller 14 particularly strong in the middle area off, so that the roller jacket 30 there more towards the suction roller 18 deformed.
  • the support element 24 is the Shoe press roll 12 and the support elements 32 of the counter roll 14 to one common pressure fluid line 44 connected.
  • the support members 32 of the counter roller 14 in present case in groups with this common pressure fluid line 44 connected.
  • the pressure fluid-actuated support elements 24 and 32 can be acted upon in such a way that with respect to those generated by these support members 24, 32 the flexible press jacket 26 of the shoe press roll 12 or the roll jacket 30 of the counter-roller 14 acting internal contact pressures a differential pressure sets, partly due to a different size the contact surfaces of the support elements 24, 32 can be determined.
  • this differential pressure can be changed.
  • this differential pressure is especially the line force difference between the Shoe press roll 12 and the counter roll 14 changeable.
  • the transverse profile of the differential pressure resulting transversely to the web running direction L. between the shoe press roll 12 and the counter roll 14 changeable, so that in particular different differential pressures the width are adjustable.
  • variable differential pressure between the shoe press unit 12 and the counter roller 14 are thus corresponding the line force in the nip 20 can also be changed, in this nip 20 adjustable at least substantially flat line forces are.
  • the differential pressure or the line force difference can at least be continuously changeable in some areas.
  • the differential pressure or the line force difference is adjustable from the outside in the present case.
  • the setting can be, for example, mechanical, hydraulic, pneumatic, manual, remote controlled, on site, starting from a control room and / or process-controlled.
  • the differential pressure can, for example by means of predefinable characteristics depending on the line force in the Roll gap 20 to be adjustable. In particular, it can also be dependent line force correction specifications for the nip 20 adjustable his.
  • the setting is made via an electronic Control 62. It is in particular also possible that, for example, the respective line force correction specifications and / or the like via corresponding Process control system signals are provided. moreover can the differential pressure over at least one closed control loop comprehensive control system to be adjustable.
  • the differential pressure that generated by the support elements 32 of the counter roll 14 whose roller jacket 30 acting internal contact pressure can be changed (cf. Figure 2).
  • the counter roll 14 adjustable or variably adjustable pressure reducing means 46 provided in the pressure fluid connection between the common pressure fluid line 44 and the support elements 32 the counter roll 14 adjustable or variably adjustable pressure reducing means 46 provided, the differential pressure across these variable Pressure reducing agent 46 is changed.
  • the support element 24 of the shoe press roll 12 directly connected to the common pressure fluid line 44.
  • the pressure reducing means 46 can each be, for example include variably adjustable valve.
  • variable differential pressure between the shoe press roller 12 and the counter roller 14 can also the deformation in between the counter roll 14 and the suction roll 18 formed nip 20 variable to be influenced. This means that this is otherwise not deflection-controlled Roll gap 20 line forces over a wide range adjustable, always ensuring an optimal baling cross profile is. With a targeted adjustment of the variable differential pressure between the shoe press roll 12 and the counter roll 14 can also Cross profile corrections in the between the counter roll 14 and the suction roll 18 formed nip 20 are made.
  • variable pressure reducing means 46 can be used.
  • the line forces in the nip 20 can then be adjusted in an even larger line force range, wherein in the nip 20 always creates a flat pressing force cross profile can be.
  • edge corrections can be made via correction specifications the line force in the nip 20 in the positive direction (Edge overpressure) and in the negative direction (edge relief).
  • FIG. 3 is a schematic cross-sectional representation of another one Embodiment of a press arrangement with four press rolls shown.
  • This embodiment differs from that according to FIGS. 1 and 2 essentially in that viewed in the web running direction L before the nip 20, a further nip 48 is provided, which between the suction roller 18 and an additional one arranged below it Roll 50 is formed.
  • This additional nip 48 is felted twice, while the two press nips 20 following in web running direction L and 16 are each simply felted.
  • the through the further nip 48 guided top felt 52 also runs through the nip 20.
  • the additional Roller 50 is in the loop of the underfelt passed through the nip 48 54 arranged.
  • the fibrous web 10 is from the top felt 52 in Area of a suction roll 56 taken over by a screen belt 58 before it is passed through the nip 48.
  • this embodiment has essentially the same structure as that according to the Figures 1 and 2, corresponding parts with the same reference numerals are provided.
  • differential pressure or a line pressure difference 60 where the differential pressure or the line pressure difference 60 can be changed again and are preferably variable and infinitely adjustable.
  • This differential pressure or this line pressure difference 60 can between the shoe press roll 12 and the counter roll 14 in particular be variable and infinitely adjustable. This changes again the deflection of the central or counter roll 14 in the nip 20 and thus the pressure distribution in this nip 20.
  • the setting of the line pressure difference 60 or the differential pressure also takes place in the present exemplary embodiment again via an electronic control 62.
  • the setting can be mechanical, hydraulic, pneumatic, manually operated, remote controlled, on site, starting from a control room and / or process-controlled.
  • the variable line force difference can be used in particular to influence the pressure distribution be drawn into the nip 20 without the respective desired line forces in the press nips 20, 16 and 48 changed become.
  • Via the variable differential pressure or the variable line pressure difference can also in particular the line force in the nip 20 adjusted in a relatively large area in the desired manner become. In addition, there is a targeted influence on the conditions in the another nip 48 possible.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Paper (AREA)

Claims (28)

  1. Dispositif de pressage pour traiter une bande de matière fibreuse (10), en particulier bande de papier et/ou de carton, avec un intervalle de pression (16) compris entre une unité de pression à patin (12) et un rouleau conjugué (14) et prolongé dans la direction d'amenée de la bande (L), et un entre-deux rouleaux (20) compris entre le rouleau conjugué (14) et un rouleau en aval (18), dispositif dans lequel l'unité de pression à patin (12) comprend un cerclage de pression flexible (26) tournant autour d'un support (22) immobilisé en rotation, et s'appuyant sur le support (22) par l'intermédiaire d'au moins un élément d'appui (24) dans la zone de l'intervalle de pression prolongé (16), et dans lequel le rouleau conjugué (14) adopte la forme d'un rouleau à compensation de flexion comprenant un bandage de rouleau (30) qui tourne autour d'un support (28) immobilisé en rotation, et qui est à nouveau en appui sur le support en question (28) dans la zone de l'intervalle de pression prolongé (16), par l'intermédiaire d'un élément d'appui (32), au moins, et dans lequel les éléments d'appui (24, 32) préférentiellement actionnés par fluide sous pression sont conçus et contactables de façon à ce qu'il s'établisse une pression différentielle par rapport aux pressions de contact internes produites par les éléments d'appui (24, 32) et agissant sur le cerclage de pression flexible (26) de l'unité de pression à patin (12) et le bandage (30) du rouleau conjugué (14), caractérisé en ce que la pression différentielle est modifiable.
  2. Dispositif de pressage selon la revendication 1, caractérisé en ce que la différence des lignes de forces entre l'unité de pression à patin (12) et le rouleau conjugué (14) est modifiable avec la pression différentielle.
  3. Dispositif de pressage selon la revendication 1 ou 2, caractérisé en ce que le profil transversal de la pression différentielle obtenu transversalement à la direction d'amenée de la bande (L) est modifiable, de sorte que différentes pressions différentielles, en particulier, sont réglables en largeur.
  4. Dispositif de pressage selon l'une des revendications qui précèdent, caractérisé en ce que la ligne de forces établie dans l'ente-deux rouleaux (20) est modifiable via la pression différentielle.
  5. Dispositif de pressage selon la revendication 4, caractérisé en ce que des lignes de forces, au moins sensiblement planes, établies dans l'entre-deux rouleaux (20), sont réglables via la pression différentielle variable.
  6. Dispositif de pressage selon l'une des revendications qui précèdent, caractérisé en ce que la pression différentielle ou la différence de lignes de forces est modifiable en continu, du moins localement.
  7. Dispositif de pressage selon l'une des revendications qui précèdent, caractérisé en ce que pour modifier la pression différentielle, la pression de contact interne produite par les éléments d'appui (24) de l'unité de pression à patin (12) et agissant sur son cerclage de pression flexible (26) est modifiable.
  8. Dispositif de pressage selon l'une des revendications qui précèdent, caractérisé en ce que pour modifier la pression différentielle, la pression de contact interne produite par les éléments d'appui (32) du rouleau conjugué (14) et agissant sur son bandage de rouleau (30) est modifiable.
  9. Dispositif de pressage selon l'une des revendications qui précèdent, caractérisé en ce que pour modifier la pression différentielle, aussi bien la pression de contact interne produite par les éléments d'appui (24) de l'unité de pression à patin (12) et agissant sur son cerclage de pression flexible (26), que la pression de contact interne produite par les éléments d'appui (32) du rouleau conjugué (14) et agissant sur son bandage de rouleau (30), sont modifiables.
  10. Dispositif de pressage selon l'une des revendications qui précèdent, caractérisé en ce que l'élément d'appui (24), au moins un, de l'unité de pression à patin (12), et l'élément d'appui (32), au moins un, du rouleau conjugué (14), sont branchés sur une conduite de fluide sous pression commune (44), et en ce que dans le branchement du fluide sous pression entre la conduite de fluide sous pression commune (44) et l'élément ou les éléments d'appui (24) de l'unité de pression à patin (12) et/ou dans le branchement du fluide sous pression entre la conduite de fluide sous pression commune (44) et l'élément ou les éléments d'appui (32) du rouleau conjugué (14), on a prévu des moyens de réduction de pression (46) ajustables, et en ce que la pression différentielle est modifiable via ces moyens de réduction de pression (46) variables.
  11. Dispositif de pressage selon la revendication 10, caractérisé en ce que les éléments d'appui (24) de l'unité de pression à patin (12) et/ou les éléments d'appui (32) du rouleau conjugué (14) sont branchés individuellement, par groupes, ou comme un tout, sur la conduite de fluide sous pression commune (44).
  12. Dispositif de pressage selon la revendication 11, caractérisé en ce que pour réduire la pression d'éléments d'appui (32) branchés par groupes sur la conduite de fluide sous pression commune (44), on a prévu un moyen de réduction de pression ajustable (46) entre au moins un, de préférence entre chacun de ces groupes d'éléments d'appui (32), et la conduite de fluide sous pression commune (44).
  13. Dispositif de pressage selon la revendication 11 ou 12, caractérisé en ce que pour réduire la pression d'éléments d'appui branchés individuellement sur la conduite de fluide sous pression commune, on a prévu un moyen de réduction de pression ajustable entre au moins un, de préférence entre chacun de ces éléments d'appui individuels et la conduite de fluide sous pression commune.
  14. Dispositif de pressage selon l'une des revendications qui précèdent, caractérisé en ce que les moyens de réduction de pression (46) comprennent au moins une soupape à réglage variable.
  15. Dispositif de pressage selon l'une des revendications qui précèdent, caractérisé en ce que la pression différentielle ou la différence de lignes de forces est réglable de l'extérieur.
  16. Dispositif de pressage selon l'une des revendications qui précèdent, caractérisé en ce que la pression différentielle ou la différence de lignes de forces est réglable par commande mécanique, hydraulique, pneumatique, manuelle, à distance, sur site, à partir d'un poste de contrôle et/ou par pilotage de processus.
  17. Dispositif de pressage selon l'une des revendications qui précèdent, caractérisé en ce que la pression différentielle est réglable par l'intermédiaire de lignes caractéristiques pouvant être définies au préalable en fonction de la ligne de forces établie dans l'entre-deux rouleaux (20).
  18. Dispositif de pressage selon l'une des revendications qui précèdent, caractérisé en ce que la pression différentielle est réglable en fonction de données prédéfinies de correction de lignes de forces pour l'entre-deux rouleaux (20), les données prédéfinies de correction de lignes de forces pouvant être introduites de préférence via une commande électronique (62) et/ou étant rendues disponibles via des signaux correspondants d'un système de contrôle de processus industriels.
  19. Dispositif de pressage selon l'une des revendications qui précèdent, caractérisé en ce que la pression différentielle est réglable via un système de régulation comprenant au moins une boucle d'asservissement fermée.
  20. Dispositif de pressage selon l'une des revendications qui précèdent, caractérisé en ce qu'en ce qu'on peut modifier, via la pression différentielle, la ligne de forces d'un autre entre-deux rouleaux (48) qui est créé entre le rouleau en aval (18) et un rouleau supplémentaire (50).
  21. Dispositif de pressage selon l'une des revendications qui précèdent, caractérisé en ce qu'au moins le rouleau conjugué (14) et/ou le rouleau en aval (18) est bombé.
  22. Dispositif de pressage selon l'une des revendications qui précèdent, caractérisé en ce que tous les rouleaux sont bombés.
  23. Dispositif de pressage selon l'une des revendications qui précèdent, caractérisé en ce que l'unité de pression à patin est constituée d'un rouleau de pression à patin (12) avec un bandage de pression flexible (26) formant cerclage de pression.
  24. Dispositif de pressage selon l'une des revendications qui précèdent, caractérisé en ce que l'unité de pression à patin (12) est disposée au-dessus du rouleau conjugué (14).
  25. Dispositif de pressage selon l'une des revendications qui précèdent, caractérisé en ce que le bandage (30) du rouleau conjugué (14) est monté sur le support en question (28) sans possibilité de déplacement radial à ses extrémités.
  26. Dispositif de pressage selon l'une des revendications qui précèdent, caractérisé en ce que le plan d'action (38) de l'élément d'appui (32), au moins un, du rouleau conjugué (14) est légèrement incliné par rapport au plan d'action (40) de l'élément d'appui (24), au moins un, de l'unité de pression à patin (12), l'angle d'inclinaison (α) se situant de préférence dans une plage d'environ 2° à environ 15°, et en particulier dans une plage d'environ 4° à environ 8°.
  27. Dispositif de pressage selon l'une des revendications 1 à 25, caractérisé en ce que le plan d'action (38) de l'élément d'appui (32), au moins un, du rouleau conjugué (14), coïncide, du moins sensiblement, avec le plan d'action (40) de l'élément d'appui (24), au moins un, de l'unité de pression à patin (12).
  28. Dispositif de pressage selon l'une des revendications qui précèdent, caractérisé en ce que les surfaces actives en pression des éléments d'appui (32) du rouleau conjugué (14) sont non-identiques aux surfaces actives en pression de l'élément d'appui (24), au moins un, de l'unité de pression à patin (12).
EP98121252A 1998-01-12 1998-11-07 Dispositif de pressage Expired - Lifetime EP0928843B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19800807A DE19800807A1 (de) 1998-01-12 1998-01-12 Pressenanordnung
DE19800807 1998-01-12

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EP0928843A2 EP0928843A2 (fr) 1999-07-14
EP0928843A3 EP0928843A3 (fr) 2000-11-22
EP0928843B1 true EP0928843B1 (fr) 2003-10-15

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EP98121252A Expired - Lifetime EP0928843B1 (fr) 1998-01-12 1998-11-07 Dispositif de pressage

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US (1) US6942761B1 (fr)
EP (1) EP0928843B1 (fr)
JP (1) JP4316709B2 (fr)
CA (1) CA2258342A1 (fr)
DE (2) DE19800807A1 (fr)

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BR0111357A (pt) * 2000-05-18 2003-04-29 Metso Paper Karlstad Ab Máquina de papel crepom macio e seção de prensagem da mesma
DE1156153T1 (de) 2000-05-18 2002-10-02 Metso Paper Karlstad Ab, Karlstad Weichkrepp-papiermaschine und deren Pressenpartie
JP4868602B2 (ja) * 2004-04-05 2012-02-01 タイコ・ヘルスケア・グループ・リミテッド・パートナーシップ 外科用手接近装置
WO2005097234A2 (fr) * 2004-04-05 2005-10-20 Tyco Healthcare Group Lp Appareil d'acces pour les mains lors d'operations chirurgicales
JP5283409B2 (ja) * 2008-03-25 2013-09-04 大王製紙株式会社 段ボール用ライナーの製造方法
JP2009293138A (ja) * 2008-06-03 2009-12-17 Daio Paper Corp 段ボール用中芯原紙の製造方法

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DE19520443C2 (de) * 1995-06-03 2000-05-31 Voith Sulzer Papiermasch Gmbh Walzenpresse
DE19522761C2 (de) 1995-06-27 2000-11-16 Voith Sulzer Papiermasch Gmbh Schuh-Preßeinrichtung
DE19638689A1 (de) * 1996-09-20 1998-03-26 Voith Sulzer Papiermasch Gmbh Preßvorrichtung zur Behandlung einer Matrialbahn

Also Published As

Publication number Publication date
DE19800807A1 (de) 1999-07-15
JPH11247085A (ja) 1999-09-14
JP4316709B2 (ja) 2009-08-19
EP0928843A3 (fr) 2000-11-22
DE59809921D1 (de) 2003-11-20
US6942761B1 (en) 2005-09-13
EP0928843A2 (fr) 1999-07-14
CA2258342A1 (fr) 1999-07-12

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