WO1995020068A1 - Transport sans traction d'une bande dans une section de compression - Google Patents

Transport sans traction d'une bande dans une section de compression Download PDF

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Publication number
WO1995020068A1
WO1995020068A1 PCT/EP1995/000196 EP9500196W WO9520068A1 WO 1995020068 A1 WO1995020068 A1 WO 1995020068A1 EP 9500196 W EP9500196 W EP 9500196W WO 9520068 A1 WO9520068 A1 WO 9520068A1
Authority
WO
WIPO (PCT)
Prior art keywords
felt
press
roller
nip
fibrous web
Prior art date
Application number
PCT/EP1995/000196
Other languages
German (de)
English (en)
Inventor
Gerhard Kotitschke
Wolfgang Mayer
Helmut Heinzmann
Wilfried Weiss
Karl Gaugenmaier
Karl Steiner
Wolfgang Bamberger
Original Assignee
Voith Sulzer Papiermaschinen 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
Priority claimed from DE19944401519 external-priority patent/DE4401519A1/de
Priority claimed from DE19944402629 external-priority patent/DE4402629A1/de
Application filed by Voith Sulzer Papiermaschinen Gmbh filed Critical Voith Sulzer Papiermaschinen Gmbh
Priority to EP95908208A priority Critical patent/EP0689627A1/fr
Priority to JP7519341A priority patent/JPH08509274A/ja
Publication of WO1995020068A1 publication Critical patent/WO1995020068A1/fr
Priority to FI954412A priority patent/FI954412A/fi

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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
    • D21F3/04—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
    • D21F3/04—Arrangements thereof

Definitions

  • the invention relates to a device and a method for tension-free web transfer of a fibrous web, in particular a paper web in the press section of a paper machine.
  • the fibrous web is therefore guided together with the press felt on the counter roller to a take-off roller which forms a nip with the counter roller in a single-felt press unit. There, the fibrous web is removed and further transferred to a second felt, which, however, is designed as a transfer felt, from which the web is removed in a free pull for further treatment.
  • the solution to the problem according to claims 1 and 18 is based on the knowledge that the final dry content behind a second press nip, which is designed as a long press nip, practically does not change if the input dry content in this second press nip changes slightly - i.e. with or without prior rewetting of the fibrous web by the first press felt.
  • a separate transfer felt can therefore be dispensed with, so that the first press felt represents the transfer felt practically simultaneously. That means, provided that the subsequent press nip is formed by an extended nip press, an immediate separation of the press felt from the fibrous web can be dispensed with at the press nip in front and the press felt can be used as a transfer felt.
  • the solution to the problem is based on the knowledge that a high final dry content due to the use of a high-performance press unit, for example one
  • Long nip press can also be achieved as a second press nip if a fibrous web remoistening takes place on the first felt behind the first press nip. This results from the long shared path from the paper web and the first felt behind the first press nip. This long common path is necessary to secure the fibrous web using the first felt, ie without a separate transfer felt and without an open fibrous web tension to transfer to the second felt.
  • a press unit comprising a circumferential, ring-forming body, in particular a roller, and a counter element - which can be described as a roller or by a press belt running over a shoe - which together form a press nip through which at least one endless Felt belt (first felt belt), together with "the fibrous web is guided to the circumferential body forming a ring in the fibrous web running direction after the press nip a removal roller is assigned, which forms with this a further, second nip, on which the fibrous web with the first felt belt
  • the fibrous web thus wraps around a part of the circumference, the circumferential, ring-forming body after the press nip with the first felt band, ie the fibrous web is coiled with the first felt band along a part of the circumference of the circumferential, ring-forming body
  • the first felt tape was successful t along part of the circumference of a circumferential body forming a ring, the take-off
  • connection to the press nip further supported by the felt belt which proves to be particularly advantageous especially when the rotating body forming a ring is used as a stone roller.
  • the elaborate, manually carried out transfer of the fibrous web in the start-up phase by means of blown air in free draft to the next press unit can be omitted.
  • the necessary swiveling of a press roll in the subsequent press unit can be dispensed with.
  • the fibrous web is removed from the first felt belt by means of a second felt belt and with this through a third press nip, which is designed as a high-performance dewatering nip.
  • the encircling body forming a ring can be designed, for example, as a roller or stone roller.
  • the first counter element can also be designed as a smooth roller or as a shoe roller.
  • the invention allows the use of exclusively conventional, proven components, while similar arrangements according to DE 40 26 021, for example, either have to transfer smooth web-touched press belts or smooth paper-touched press sleeves with the risky direct web or use a paper suction and blow roller. There is a risk here that the fibrous web will wind around the felt guide rolls and "wrap them up".
  • Fibrous web removal by means of the shoe-side felt can no longer be pulled over the shoe, in particular the outlet radius of the shoe.
  • the first and second press units can be designed as single-felt or double-felt press units.
  • the fibrous web is, for example, between two felt belts, the first
  • Felt belt and a further, third felt belt are guided through the press nip and in the connection between the two felts with them along part of the circumference of the circumferential body forming a ring, ie the felt belts are guided such that the first felt belt touches the counter element at least directly, the circumferential, ring-forming body at least on a part of its circumference following the press nip up to the nip indirectly and from the nip, the take-off roller directly wraps around part of its circumference again, while the third felt band encircles the circumferential, ring-forming body on a Part of its size in the press nip and in Connects directly to the press nip.
  • the two felt belts are separated from one another on the take-off roller, which is arranged in the fibrous web running direction after the press nip, the rotating body forming a ring such that they form a nip with one another.
  • the separation can take place directly in the area of the nip or on the circumference of the take-off roller following the nip.
  • the take-off roller is preferably designed as a suction roller. The fibrous web is sucked onto the first felt belt.
  • Felt tape is guided such that it is separated from the fibrous web and the first felt tape in the nip in free pull.
  • the take-off roller can be designed as a solid jacket roller.
  • the removal roller is wrapped over part of its circumference by the first felt belt.
  • the third felt belt is then guided in such a way that the third felt belt also wraps around the removal roller over part of its circumference after the nip, the
  • the wrap angle of the third felt on the take-off roller is smaller than the wrap angle of the first felt belt with the take-off roller. Due to the felt band guide, the third felt band is pulled off the fibrous web in free pull and preferably ventilated on both sides, while the fibrous web remains on the first felt band.
  • Press units of this type can be arranged in differently configured press sections, for example in press sections of machines for tissue production, wherein the second press unit can be designed as a single felt press unit.
  • An embodiment of the second press unit as a double felt press unit is also conceivable.
  • the fibrous web is transferred from the first felt belt to a second felt belt, which is guided with the fibrous web through the press nip of the second press unit.
  • the transfer can either take place immediately on the take-off roller or on another felt guide element of the first felt belt.
  • the second felt belt also wraps around the take-off roller or the felt guide element in the regions of the take-off roller or the felt guide element wrapped by the first felt belt.
  • the felt guide element is preferably also designed as a blow roller.
  • this preferably has a suction zone directed towards the circumferential body forming a ring and a blowing zone directed towards the second felt belt.
  • the blowing zone can extend across the entire width transversely to the direction of the fibrous web or can be formed only in the edge regions of the roller.
  • the take-off rollers are preferably designed in accordance with the unpublished patent application P 44 40 948.6 with a variably adjustable suction zone width over the machine width.
  • Figure 1 - a fibrous web guide according to the invention between the first press nip and an extended nip press;
  • Figure 4 a fibrous web guide according to the invention after a double felt shoe press unit with separation on a suction roll
  • Figure 5 a fibrous web guide according to the invention after a double felt shoe press unit with separation on a suction-blowing roller and subsequent transfer of the fibrous web to another felt belt
  • Figure 6 a fibrous web guide according to the invention after a press unit with a stone roller
  • FIG. 7 draft-free web transfer from a press nip to an extended nip press with a felt guide roller which is variable in its suction width
  • Figure 8 - a felt guide roller corresponding to Figure 7
  • Figure 9a- a draft-free web transfer from a press nip to a subsequent extended nip press with the help of a suction box
  • Figure 9b- a view in cross section through the
  • FIG. 1 shows a section of a press section with a draft-free web transfer from a press nip I of a press unit 1, via a press nip II to a third press nip III, which acts as a high-performance dewatering nip is executed, and as in the case shown is formed by an extended nip press 3.
  • the first press nip I is formed from a rotating body 5 forming a ring and a first counter-roller 5, in the case shown a pair of rollers consisting of a central roller 4.1 and a profile roller 5.1.
  • An endless first felt belt here the press felt F1 runs over a felt guide roll into the press nip I on the side of the profile roll 5.1, while at the same time the fibrous web B to be dewatered runs in on the side of the central roll 4.1.
  • the pressed fibrous web B wraps around the central roller 4.1, together with the press felt F1 lying thereon, around the central roller 4.1 at an angle ⁇ until it is finally passed through a take-off device 6 in the form of a take-off roller, together with the felt Fl , is removed from the central roller 4.1.
  • the take-off roller is represented by a suction roller 6.1, which in this example has two suction zones, the first suction zone 7 in the direction of the fibrous web being equipped with a higher vacuum than the second
  • the take-off roller forms the second press nip II with the central roller 4.1.
  • the suction roller 6.1 guides the press felt F1, together with the fibrous web B remaining thereon, to a second opposite suction roller 9, which is designed as a felt guide roller for a second felt F2, which leads through the extended nip press 3.
  • the felt F2 takes over the fibrous web B, supported by the negative pressure of the suction guide roller 9 and guides the fibrous web B into the press nip III of the extended nip press, which is guided by a
  • Profile roller 10.1 and a shoe roller 11.1, comprising a circumferential jacket which can be pressed against the profile roller by means of a shoe, is formed.
  • the take-off roller 6.1 also serves to transfer the fibrous web from the side of the first felt F1.
  • Figure 2 shows a press section similar to Figure 1.
  • the transfer device in this case consists of a first vacuumed roller 6.2 and a subsequent simple felt guide roller 12, with the transfer of the paper web between roller 6.2 and roller 12 onto the felt F2, which is guided over the suction guide roller 2 , he follows.
  • the roller 6.1 shown in FIG. 1 is designed to be pivotable, so that the paper web can be guided to a scraper 13 along the roller surface of the roller 4.1, for example in the event of a fibrous web tear, and ends up in the reject chest. It is also possible, in the case of FIG. 2, to pivot the two rollers 6.2 and 12 of the removal and transfer device, coupled to one another, from the roller 4.1.
  • the take-off roller is also part of the transfer device for transferring the fibrous web to the second felt F2.
  • FIG. 3 illustrates the further possibility of a closed web guide according to the invention in a section of a press section.
  • a press unit 1 comprising a press element, here embodied as a shoe roll 5.2, forms with an encircling body forming a ring, here a roll 4.2, an elongated press nip I through which a fibrous web B is passed.
  • the fibrous web B is passed between two endless felt belts, a first felt F1 and a further felt F3 through the press nip I and dewatered there under the action of pressure. After the discharge from the press nip I, the fibrous web B between the first felt F1 and the felt F3 is guided according to the invention on a part of the circumference 15 of the roller 4.2.
  • the felt F3 is guided in such a way that it does not roll the roller 4.2 over part of its circumference 15 and at least one shown felt guide element wraps around.
  • the first felt F1 wraps around the circumference 16 of the pressing element 5.2 at least in the area of the press nip I and, after leaving the press nip I, is together with the felt F3 and the fibrous web B on part of the circumference 15 of the roller
  • the suction roller 6.3 is arranged opposite the roller 4.2 in such a way that both form a nip II with one another.
  • the fibrous web B is separated from the felt F3 at the outlet from the nip II due to the suction effect of the suction roller 6.3 and is guided together with the felt F1 along part of the circumference 17 of the suction roller 6.3 and transferred to a further endless felt belt F2 at a felt guide roller 18.
  • the felt guide roller 18 is primarily wrapped in the felt belt F2 and is preferably designed as a suction roller which sucks in the fibrous web B.
  • the felt F2 is used to guide the fibrous web B through a third and extended press nip III of a second press unit 3, which is formed by a second shoe roll 10.2 and a second counter element 11.2.
  • the fibrous web is guided in this area of the press section without free draft, i.e. the fibrous web is supported by at least one felt as it passes through the press section.
  • FIG. 4 also illustrates a section of a press section of a machine for producing endless fibrous webs with two press units, as described in FIG. 3, which is why the same reference numbers are used for the same elements.
  • the fibrous web B is here also passed between the felt F3 and the felt F2 through the extended press nip I of the press unit 1. After leaving the press nip I, felt F1 and felt F3 are guided together with the fibrous web in between on part of the circumference 15 of the roller 4.2.
  • the fibrous web B is continued with the felt Fl by removal by means of the suction roller 6.3 in the nip II analogously to FIG a part of the circumference 20 is wrapped around and is designed as a blowing roller.
  • the felt belt F2 not only touches, but indirectly wraps around the blow roller 19 on a part of its circumference 20.
  • FIG. 4 shows a possibility of the fibrous web guide, in which the felt F3 is guided behind the extended press nip I on part of the circumference of the roller 4.2 and along part of the circumference 17 of the removal roller 6.3 forming a nip II with the roller 4.2.
  • the fibrous web B is also guided with the felt F1.
  • the felt F1 and F3 are only separated after the nip II on the circumference 17 of the take-off roller 6.3.
  • the felt F3 is pulled due to its guidance by means of felt guide elements, not shown here, in free tension in the U looping area of the felt Fl with the take-off roller 6.3 after the nip II from the felt F3 and ventilated on both sides.
  • a separation of the felts F1 and F3 in the nip II, not shown here, is also conceivable.
  • FIG. 5 illustrates the possibility of a fibrous web guide after a first press unit 1 designed as a shoe press unit with a support element acting in the installed position in the direction of gravity and a subsequent second press unit 3, the transfer of the fibrous web B to the felt belt F2 after the separation of the felts F1 and F3 on a take-off roller 6.4 takes place, which is designed as a suction blow roller.
  • the shoe press unit comprises a circumferential body which forms a ring, for example in the form of a roller 4.3, which forms a first press nip I with a counter element 5.3, through which the fibrous web B passes between a first endless felt F3 which forms the ring on part of its circumference 21 immediately wraps around, and a felt tape F1, which wraps around or contacts the counter element 5.3 on part of its circumference, is passed through.
  • the two felt belts F1 and F3 are separated in nip II, which the take-off roller 6.4 forms with the roller 4.3.
  • the fibrous web B is sucked onto the felt belt F1, which is why the take-off roll 6.4 has a suction part 22 directed towards the roll 4.3.
  • it is partially wrapped with the removal roller in the wrapping area of the first felt belt F1 with the removal roller F2.
  • the removal roller 6.4 has a blowing zone 23 in this area, which is preferably only provided in the end areas of the removal roller 6.4.
  • FIG. 6 illustrates a possibility of removing the fibrous web immediately after the press nip Felt press unit 1, which comprises two rollers, one roller being designed as a stone roller 4.4.
  • a press nip 24 of a double felt press device which is formed by a roller 25 and a counter element 26
  • the fibrous web is guided along the circumference of the counter element after the press nip 24 with a felt band 28 which wraps around the counter element on part of its circumference 27.
  • the fibrous web B is separated at the outlet of the press nip 24 from a felt belt 30, which directly wraps around the roller 25 on part of its circumference 31 and is guided together with the felt belt 28 through the press nip 24.
  • the roller 26 is designed as a suction press roller.
  • the individual felt strips 28 and felt strip 30 are guided in such a way that the felt strip 28 is separated from the felt strip 30 already at the outlet from the press nip 24 and the fibrous web B is sucked in due to the design of the counter element 26 as a suction press roller.
  • the fibrous web B is guided with the felt belt 28 through a further press nip 29 which the roller 26 forms with a stone roller 4.4. After the dewatering process in the press nip 29 has ended, the fibrous web B is guided further along the surface 32 of the stone roller 4.4 and passed together with a felt belt F1 through a press nip I formed by the stone roller 4.4 and a further pressure roller 5.4.
  • the felt F1 and the fibrous web B are guided together along the surface 32 of the stone roller 4.4 and through a second press nip II, which is formed by the stone roller 4.4 with a take-off roller 6.5 designed as a suction-blow roller, and then to a felt belt F2, which loosely wraps around the take-off roller 6.5 over part of its circumference, which is guided together with the fibrous web B to a further press unit 3.
  • the take-off roller 6.5 is constructed here as described in FIG. 5. This comprises a suction area 33 directed towards the stone roller 4.4 and a blowing area 34 directed towards the felt tape F2, which is preferably formed only in the edge areas of the roller.
  • the sections from the press sections shown in the figures are only examples of a possible arrangement of press units. It is essential that the take-over of the fibrous web on a felt belt after passing through a press nip essentially takes place in such a way that the fibrous web is guided from the press nip outlet with the felt on part of the circumference of the one press element and a nip, which is a take-off roller is at the same time the guiding element of the felt, forms with this pressing element, passes through.
  • the subsequent press nip is designed as a high-performance dewatering nip, for example in the form of an extended nip press, since, due to the properties of the extended nip press, the rewetting of the fibrous web by the continuous contact after the first press nip is compensated with the felt.
  • the preceding or one of the preceding press nips it is of course possible according to the invention to design the preceding or one of the preceding press nips as an extended nip press.
  • FIG. 7 illustrates a draft-free web guide in a press section, in which the take-off roller is carried out on a first press unit in such a way that it particularly meets the problems of the start-up process , i.e. if the production of a paper machine starts after a previous shutdown and a narrow strip of the still wet paper web is cut out somewhere in front of the dryer section or at the beginning of the dryer section (so-called ribbon) and this ribbon is first passed through the entire dryer section.
  • the main part of the still wet paper web is diverted at the separation point into a chest below the paper machine, in order to be converted back into a stock suspension by stirring with the addition of water, which is then fed back into the material cycle.
  • the so-called ribbon can be produced in that it is already separated from the rest of the paper web just created on the paper machine screen by a water jet. However, it can also be cut out at a subsequent point in the machine direction by cutting it out of the already solidified paper web.
  • the band and the remaining web are separated, for example, on a press roll, for example on the central roll of a roll press with three press nips.
  • the suction roller can be equipped with two suction zones. The first of these two suction zones is located at one end of the suction roller, namely where the ribbon is guided. This first suction zone is as narrow as the ribbon itself.
  • the second suction zone extends over the rest of the
  • Suction roll width In this case, the first suction zone is first subjected to negative pressure in order to transfer the ribbon from the preceding press roll to the suction roll mentioned. As soon as the ribbon has passed through the entire paper machine, the first suction zone is first subjected to negative pressure in order to transfer the ribbon from the preceding press roll to the suction roll mentioned. As soon as the ribbon has passed through the entire paper machine, the first suction zone is first subjected to negative pressure in order to transfer the ribbon from the preceding press roll to the suction roll mentioned. As soon as the ribbon has passed through the entire paper machine, the
  • Tip cutters move transversely to the direction of travel of the paper web, in the sense that the ribbon is continuously widened until the full web width is reached.
  • vacuum must be applied to the second suction zone in order to capture the widening web and transfer it to the suction roll.
  • the vacuum pump must accordingly be sized accordingly.
  • FIG. 7 shows a section from a paper machine, in particular a section from a wire section and a subsequent press section with a suction roll which removes the fibrous web on the first press unit and has an adjustable suction zone width corresponding to the increase in the belt width.
  • the screen section 40 comprises a screen 41.
  • the screen section 40 has a number of internals, for example one
  • a water jet nozzle 45 directs a water jet against the nascent paper web in order to separate a narrow strip, the so-called ribbon, from the start of the paper machine.
  • a press section follows the wire section. This has a plurality of press felts, for example the felt F1, which wraps around a pick-up roller 46 and which removes the paper web (or the ribbon) from the wire 41.
  • the pick-up roller 46 is followed by a first press unit 1 with press rollers 4.5 and 5.5.
  • the first press unit 1 is followed by a second press unit 3 with the press rolls 47 and 48. Both press units are as Long nip presses and the press rolls 5.5 and 48 designed as shoe rolls.
  • the band If the band is listed, it must be removed on the suction roller.
  • the suction roll in conventional systems is therefore intended for a first suction zone for the ribbon and a second suction zone for the main part of the paper web.
  • the second suction zone At the beginning of the widening of the paper web, the second suction zone is not yet covered, but a vacuum must already be applied to this second zone, in which - as mentioned above - energy is lost or large amounts of air are sucked through the perforation of the second zone.
  • a drive 54 is assigned to the water jet nozzle 45.
  • a drive 55 is assigned to the adjusting device for changing the suctioned width in suction roller 6.6.
  • a switch 56 is provided which serves to control the two drives 54 and 55 simultaneously.
  • the drives 54 and 55 are connected to one another via electrical lines 57, 58. Furthermore, one
  • Actuating device 59 is provided for changing the control signal in line 58 relative to the control signal in line 57. This ensures that the two drives 54 and 55 have the same speed. Finally, a delay device 60 is provided. This may cause drive 55 to start later than drive 54, by the time span ⁇ t.
  • ⁇ t depends on the machine speed and also on the distance covered by the web between the water jet nozzle 45 and the suction roller 6.6.
  • the suction roll 6.6 is shown in Figure 8. This has a vacuum connection 61 on the driver's side and an axially perpendicular sealing plate 62 in the interior.
  • the sealing plate 62 can be moved in the longitudinal direction of the suction roll by means of a threaded spindle 63 which can be rotated about its own axis. When moving the sealing plate 62 in the figure from left to right, the suction is
  • Roller width X increased and the non-vacuumed roller width Y reduced to the same extent. This in turn takes place simultaneously and to the same extent to which the water jet nozzle moves transversely to the paper web according to FIG.
  • Figures 9a to 9c also illustrate a draft-free web transfer from a first press nip I to a further press nip III, which is designed as an extended nip press, in which case a fixed suction box 67 is provided to support the web guide, which removes the felt F1 from the jacket of the central roller 4.6 the first press unit 1 decreases.
  • the fixed suction box 67 is divided into a plurality of suction zones ZI, Z2 and Z3, with at least one of the pressure elements 68-71 being elastically suspended from the felt according to the invention.
  • FIG. 9b and 9c the fixed suction box 67 is divided into a plurality of suction zones ZI, Z2 and Z3, with at least one of the pressure elements 68-71 being elastically suspended from the felt according to the invention.
  • 9b shows a possible arrangement of a spray tube S for cleaning the felt or for detaching the paper web from the felt F1 if a transfer of the paper web into the reject chest is desired.
  • the second press unit is designed as an extended nip press, since, due to the properties of the extended nip press, the rewetting of the web is compensated for by the continuous contact after the first press nip with the felt.

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Abstract

La section de compression d'une machine de production de bandes en matières fibreuses, de préférence des bandes en papier, a les caractéristiques suivantes: (a) un cylindre lisse (4.1) en contact avec la bande forme un premier intervalle (I) avec un premier cylindre complémentaire (5.1) ou avec une bande de compression qui roule sur un patin, et un deuxième intervalle (II) avec un deuxième cylindre complémentaire (6.1); (b) un feutre hydrophile sans fin (F1) passe avec la bande à travers les deux intervalles successifs; (c) le deuxième cylindre complémentaire (6.1) est un cylindre aspirant avec un support fixe interne de la garniture d'étanchéité, qui forme une zone d'aspiration (7, 8) située surtout en aval du deuxième intervalle. La section de compression se caractérise en ce que la bande passe de manière connue en soi du premier feutre (F1) à un deuxième feutre sans fin (F2) qui la transporte à travers un troisième intervalle (III).
PCT/EP1995/000196 1994-01-20 1995-01-19 Transport sans traction d'une bande dans une section de compression WO1995020068A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP95908208A EP0689627A1 (fr) 1994-01-20 1995-01-19 Transport sans traction d'une bande dans une section de compression
JP7519341A JPH08509274A (ja) 1994-01-20 1995-01-19 プレス部分における引張りのないウェブ移送
FI954412A FI954412A (fi) 1994-01-20 1995-09-19 Puristinosassa ilman vetoa tapahtuva rainan siirto

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEP4401519.4 1994-01-20
DE19944401519 DE4401519A1 (de) 1994-01-20 1994-01-20 Zugfreie Bahnüberführung in einer Pressenpartie
DE19944402629 DE4402629A1 (de) 1994-01-31 1994-01-31 Faserstoffbahnführung in einer Pressenpartie einer Maschine zur Herstellung endloser Faserstoffbahnen
DEP4402629.3 1994-01-31

Publications (1)

Publication Number Publication Date
WO1995020068A1 true WO1995020068A1 (fr) 1995-07-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1995/000196 WO1995020068A1 (fr) 1994-01-20 1995-01-19 Transport sans traction d'une bande dans une section de compression

Country Status (5)

Country Link
EP (1) EP0689627A1 (fr)
JP (1) JPH08509274A (fr)
CA (1) CA2158728A1 (fr)
FI (1) FI954412A (fr)
WO (1) WO1995020068A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19654325A1 (de) * 1996-12-24 1998-06-25 Voith Sulzer Papiermasch Gmbh Pressenpartie für eine Papiermaschine
DE19713645A1 (de) * 1997-04-02 1998-10-08 Voith Sulzer Papiermasch Gmbh Verfahren zum Transportieren einer Faserstoffbahn sowie Vorrichtung zur Durchführung des Verfahrens
DE19741425A1 (de) * 1997-09-19 1999-03-25 Voith Sulzer Papiermasch Gmbh Walzenpresse
WO2011036019A1 (fr) 2009-09-23 2011-03-31 Voith Patent Gmbh Dispositif de stabilisation pour le guidage d'une bande de matière fibreuse et dispositif de séchage doté d'un tel dispositif de stabilisation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4026021A1 (de) * 1990-08-17 1992-02-27 Voith Gmbh J M Pressenpartie einer papiermaschine
DE4401519A1 (de) * 1994-01-20 1994-06-16 Voith Gmbh J M Zugfreie Bahnüberführung in einer Pressenpartie
DE4402629A1 (de) * 1994-01-31 1994-07-14 Voith Gmbh J M Faserstoffbahnführung in einer Pressenpartie einer Maschine zur Herstellung endloser Faserstoffbahnen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4026021A1 (de) * 1990-08-17 1992-02-27 Voith Gmbh J M Pressenpartie einer papiermaschine
DE4401519A1 (de) * 1994-01-20 1994-06-16 Voith Gmbh J M Zugfreie Bahnüberführung in einer Pressenpartie
DE4402629A1 (de) * 1994-01-31 1994-07-14 Voith Gmbh J M Faserstoffbahnführung in einer Pressenpartie einer Maschine zur Herstellung endloser Faserstoffbahnen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19654325A1 (de) * 1996-12-24 1998-06-25 Voith Sulzer Papiermasch Gmbh Pressenpartie für eine Papiermaschine
DE19713645A1 (de) * 1997-04-02 1998-10-08 Voith Sulzer Papiermasch Gmbh Verfahren zum Transportieren einer Faserstoffbahn sowie Vorrichtung zur Durchführung des Verfahrens
DE19741425A1 (de) * 1997-09-19 1999-03-25 Voith Sulzer Papiermasch Gmbh Walzenpresse
DE19741425B4 (de) * 1997-09-19 2007-04-19 Voith Patent Gmbh Walzenpresse
WO2011036019A1 (fr) 2009-09-23 2011-03-31 Voith Patent Gmbh Dispositif de stabilisation pour le guidage d'une bande de matière fibreuse et dispositif de séchage doté d'un tel dispositif de stabilisation
DE102009029686A1 (de) 2009-09-23 2011-04-07 Voith Patent Gmbh Stabilisierungsvorrichtung zur Führung einer Faserstoffbahn und Trockenvorrichtung mit einer derartigen Stabilisierungsvorrichtung

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JPH08509274A (ja) 1996-10-01
FI954412A0 (fi) 1995-09-19
FI954412A (fi) 1995-09-19
EP0689627A1 (fr) 1996-01-03
CA2158728A1 (fr) 1995-07-27

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