EP0368937B1 - Secheuse - Google Patents

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Publication number
EP0368937B1
EP0368937B1 EP88909246A EP88909246A EP0368937B1 EP 0368937 B1 EP0368937 B1 EP 0368937B1 EP 88909246 A EP88909246 A EP 88909246A EP 88909246 A EP88909246 A EP 88909246A EP 0368937 B1 EP0368937 B1 EP 0368937B1
Authority
EP
European Patent Office
Prior art keywords
dryer
web
felt
intermediate roll
drums
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
EP88909246A
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German (de)
English (en)
Other versions
EP0368937A1 (fr
Inventor
John 8 Lyndon Avenue Welsby
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.)
Beloit Corp
Original Assignee
Beloit Corp
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 GB878717387A external-priority patent/GB8717387D0/en
Application filed by Beloit Corp filed Critical Beloit Corp
Priority to AT88909246T priority Critical patent/ATE79425T1/de
Publication of EP0368937A1 publication Critical patent/EP0368937A1/fr
Application granted granted Critical
Publication of EP0368937B1 publication Critical patent/EP0368937B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D21F5/04—Drying on cylinders on two or more drying cylinders

Definitions

  • Such dryer section usually includes a plurality of heated dryer drums over which the formed web extends. As the web is brought into intimate contact with the heated outer surface of the dryer drums, the web is heated so that at least a portion of the moisture contained therein is removed from the web.
  • the so-called "uni run” or “uno run” dryer sections typically include an upper and a lower tier of dryer drums.
  • Each upper and lower tier comprise a pluraliry of heated, rotatable dryer drums.
  • a felt extends in sinusoidal configuration alternately between dryer drums of the upper and lower tiers and the web is pressed into physical contact with the heated surface of each alternate dryer drum during passage through the dryer section.
  • DE-A-1 931 922 published January 21, 1971 to Voith teaches a dryer section having an upper and a lower tier of dryers. However, although lower felts 7 partially extend around the lower tier of dryers, no felts extend around the upper dryers. Therefore, although DE-A-1 931 922 is the closest state of the art, the absence of an upper felt poses various runnability problems.
  • the present invention overcomes the aforementioned problems associated with the prior art arrangement by the provision of a unique configuration of upper and lower dryer drums.
  • the present invention provides a separate upper and lower felt with the upper felt extending alternatively around an upper dryer drum and an upper intermediate roll in sinusoidal configuration.
  • the lower felt extends alternately between each lower dryer drum and a lower intermediate roll.
  • the arrangement is such that each alternate intermediate roll of both the upper and lower intermediate rolls are wrapped by both the felt and the web.
  • the web extends in open draw between each adjacent upper and lower dryer drum so that the web passes in intimate contact with the heated surface of each upper and lower dryer drum.
  • the unsupported distance travelled by the web between adjacent upper and lower dryer drums is kept to a minimum.
  • the objective of the present invention is to provide a dryer section apparatus which overcomes the aforementioned inadequacies of the prior art devices and provides an apparatus which not only enables the formed web to come into intimate contact with the heated surface of each dryer drum, but also minimizes the open draw between adjacent upper and lower dryer drums.
  • the present invention relates to a dryer section apparatus and a method for drying a web extending therethrough.
  • the apparatus includes a plurality of lower dryer drums and a plurality of upper dryer drums.
  • the apparatus includes a lower felt which partially wraps each of the lower dryer drums of the plurality of lower dryer drums.
  • the apparatus also includes a plurality of lower intermediate rolls with each lower intermediate roll being disposed between adjacent lower dryer drums such that each alternate lower intermediate roll guides both the web and the lower felt.
  • An upper felt partially wraps each upper dryer drum of the plurality of upper dryer drums.
  • the apparatus includes a plurality of upper intermediate rolls with each upper intermediate roll being disposed between adjacent upper dryer drums such that each alternate upper intermediate roll guides both the web and the upper felt so that the web is transferred in open draw between adjacent upper and lower dryer drums thereby minimizing the length of the open draw and inhibiting web flutter during transfer between upper and lower dryer drums.
  • the lower felt presses the web into physical contact with the lower dryer drums such that when the lower dryer drums are heated, the web pressed against the lower drums is dried.
  • the lower felt extends in sinusoidal configuration between each adjacent lower dryer drum and each lower intermediate roll.
  • Each alternate lower intermediate roll which guides both the web and the lower felt is disposed adjacent to an upper intermediate roll which is partially wrapped by only the upper felt.
  • Each of the alternate lower intermediate rolls is a vacuum roll.
  • Each lower intermediate roll which is partially wrapped by the lower felt and the web and each upper intermediate roll which is partially wrapped by the upper felt and the web defines a pocket.
  • a blow box is disposed within each of these pockets for ventilating each of the pockets and for removing boundary air entering into the pockets.
  • the upper felt presses the web into physical contact with the upper dryer drums such that when the upper dryer drums are heated, the web pressed against the upper dryer drums is dried.
  • the upper felt extends in sinusoidal configuration between each adjacent upper dryer drum and upper intermediate roll.
  • Each alternate upper intermediate roll which guides both the web and the upper felt is disposed adjacent to a lower intermediate roll which is partially wrapped by only the lower felt and each alternate upper roll is a vacuum roll.
  • the apparatus also includes a plurality of doctor blades with each blade cooperating with a corresponding dryer drum of the upper and lower dryer drums such that each blade contacts an unwrapped surface of each respective drum.
  • the blades not only assist in stabilizing the web by restricting the influence of external air flows but also assist in directing a tail of the web during threading of the apparatus without the use of ropes.
  • a duct is disposed adjacent to each lower intermediate roll partially wrapped only by the lower felt.
  • the duct blows air through the lower felt for ventilating an adjacent dryer pocket defined between the upper and the lower felts.
  • Ventilating means are disposed adjacent to each upper intermediate roll partially wrapped only by the upper felt.
  • the ventilating means blows air through the upper felt for ventilating air from an adjacent dryer pocket defined between the upper and lower felts.
  • the vacuum rolls are replaced by grooved rolls.
  • Figure 1 is a side elevational view of a prior art dryer section showing an upper and a lower felt with the web extending in open draw for a considerable distance between adjacent upper and lower dryer drums.
  • Figure 3 shows a so-called "squat type" dryer section in which the vertical distance between the upper and lower tier of dryer drums is reduced thereby reducing the unsupported distance travelled by the web between upper and lower dryer drums. This figure also shows that the distance between adjacent upper dryer drums is increased thereby reducing the number of dryer drums that may be provided within an available dryer section length.
  • Figure 4 is a sectional view of a dryer section apparatus according to the present invention showing the "squat type" arrangement but minimizing the distance between adjacent upper dryer drums and minimizing the distance that the unsupported web travels between adjacent. upper and lower dryer drums, and
  • Figure 5 is a similar view to that shown in figure 4 but shows the distance D6 as being the same as the distance D7.
  • Figure 1 is a side elevational view of a prior art dryer section generally designated 10 showing an upper felt 12 and a lower felt 14 with the web W extending in open draw for a considerable distance between adjacent upper dryer drums 16 and 18 and lower dryer drum 20 respectively.
  • the upper felt 12 does not extend around the lower drum 20 as in the "uni-run" type system but, rather, extends around an intermediate roll 22.
  • the lower felt 14 extends in sinusoidal configuration around lower intermediate roll 24 and then around the lower dryer drum 20 such that the web W is disposed between the lower felt 14 and the outer surface 26 of the lower dryer drum 20.
  • the lower felt 14 then extends around a further lower intermediate roll 28.
  • Figure 4 is a sectional view of a dryer section apparatus 10C according to the present invention.
  • Figure 4 shows the "squat type" arrangement but minimizes the distance D4 between adjacent upper dryer drums 16C and 18C. This arrangement also minimizes the distance D5 that the unsupported web WC travels between adjacent upper and lower dryer drums 16C and 20C respectively.
  • the dryer section apparatus 10C shown in figure 4 is used for drying a web WC extending therethrough.
  • the apparatus 10C includes a plurality of lower dryer drums 20C, 34 and 36 and a plurality of upper dryer drums 16C, 18C and 38.
  • the apparatus 10C includes a lower felt 14C partially wrapping each lower dryer drum 20C, 34 and 36 of the plurality of lower dryer drums.
  • a plurality of lower intermediate rolls 24C, 28C,40 and 42 are arranged such that each lower intermediate roll 24C, 28C,40 and 42 is disposed between adjacent dryer drums 20C, 34 and 36.
  • the lower intermediate roll 28C is disposed between adjacent dryer drums 20C and 34 and the intermediate lower roll 40 is disposed between adjacent dryer drums 34 and 36 respectively.
  • Each alternate lower intermediate roll 40 guides both the web WC and the lower felt 14C.
  • An upper felt 12C partially wraps each upper dryer drum 16C, 18C and 38 of the plurality of upper dryer drums.
  • a plurality of upper intermediate rolls 44,22C and 46 is arranged such that each upper intermediate roll 44, 22C and 46 is disposed between adjacent upper dryer drums.
  • Upper roll 22C is disposed between dryer drums 16C and 18C and upper intermediate roll 46 is disposed between adjacent upper dryer drums 18C and 38 respectively.
  • Each alternate upper intermediate roll such as roll 22C guides both the web WC and the upper felt 12C so that the web WC is transferred in open draw 48 between adjacent lower and upper dryer drums 20C and 16 respectively thereby minimizing the length D5 of the open draw 48 and inhibiting web flutter during transfer of the web between upper and lower dryer drums.
  • Alternate lower intermediate roll 40 is disposed adjacent to the upper intermediate roll 46 which is partially wrapped by only the upper felt 12C.
  • Each alternate lower intermediate roll of rolls 24C, 28C, 40 and 42 is a vacuum roll.
  • Each lower intermediate roll such as 40 which is partially wrapped by the lower felt 14C and the web WC and each upper intermediate roll such as 22C which is partially wrapped by the upper felt 12C and the web WC defines pockets 50 and 51 respectively.
  • a blow box generally designated 52 is disposed within the pocket 51 for ventilating the pocket 51 and for removing boundary air indicated by the arrow 54 entering into the pocket 51.
  • the upper felt 12C presses the web WC into physical contact with the upper dryer drums 16C, 18C and 38 such that when the upper dryer drums 16C, 18C and 38 are heated, the web WC pressed against the upper dryer drums is dried.
  • the upper felt 12C extends in sinusoidal configuration between each adjacent upper dryer drum 16C, 18C and 38 and upper intermediate rolls 44, 22C and 46.
  • the dryer section apparatus 10C includes a plurality of doctor blades 56, 57, 58 and 59.
  • Each blade 56 to 59 of the plurality of blades cooperates with a corresponding dryer drum 16C, 18C, 34 and 36 of the upper and lower dryer drums such that each blade 56 to 59 contacts an unwrapped surface 60, 61, 62 and 63 respectively of each drum 16C, 18C, 34 and 36.
  • the blades 56 to 59 assist in stabilizing the web WC by restricting the influence of external air flows. Furthermore, the blades 56 to 59 assist in directing a tail (not shown) of the web during threading of the apparatus without the use ropes.
  • the intermediate vacuum rolls are replaced by grooved rolls.
  • Figure 5 is a side-elevational view of a dryer section apparatus which is the same as the dryer apparatus shown in figure 4 except in that the distances D8 and D9 are the same whereas in the arrangement of figure 4, D7 is greater than D6.
  • D7 is greater than D6.
  • a tail (not shown) of the web WC is guided between the lower felt 14C and the lower dryer drum 20C.
  • the web is heated by direct contact with the outer surface 26C of the lower dryer drum 20C and passes in a short open draw D5 towards and around upper dryer drum 16C with the web WC being disposed between the upper felt 12C and the outer surface of the dryer drum 16C.
  • the combined felt 12C and web WC extend around upper intermediate roll 22C so that the felt and web 12C and WC respectively together extend around the upper dryer drum 18C.
  • the blow box 52 blows a curtain of air in a direction as shown by the arrow 74 such that any boundary air 54 entrained by the drum 16C is directed away from entry into the pocket 51.
  • the rotational speed of the drums is increased to operational speed and it will be appreciated that the web extends around each of the dryer drums 20C, 16C, 18C, 34, 36 and 38 in intimate contact with the heated surfaces thereof for a considerable portion of the circumference of each dryer drum. Furthermore, the distance D5 that the web extends in open draw between adjacent upper and lower dryer drums is minimal thereby inhibiting the possibility of sheet flutter between adjacent dryer drums. Additionally, because of the aforementioned configuration, the number of upper and lower dryer drums that may be incorporated within a given dryer section length is increased due to the wrapping of both the web and felt around each alternate intermediate roll.

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  • Drying Of Solid Materials (AREA)
  • Paper (AREA)

Abstract

La sécheuse (10C) est destinée à sécher une bande passant au travers de la sécheuse. La sécheuse (10C) comprend une pluralité de tambours sécheurs inférieurs (20C, 34, 36) et une pluralité de tambours sécheurs supérieurs (16C, 18C, 38). Un feutre inférieur (14C) enveloppe partiellement chaque tambour sécheur inférieur (20C, 34, 36) de la pluralité des tambours sécheurs inférieurs et chaque rouleau intermédiaire inférieur (24C, 28C, 40) d'une pluralité de rouleaux intermédiaires inférieurs est disposé entre les tambours sécheurs inférieurs adjacents de sorte que chaque rouleau intermédiaire inférieur alterné (24C, 40) guide à la fois la bande et le feutre inférieur (14C). Un feutre supérieur (12C) enveloppe partiellement chacun des tambours sécheurs supérieurs (16C, 18C, 38) de la pluralité de tambours sécheurs supérieurs. La sécheuse comprend également une pluralité de rouleaux intermédiaires supérieurs (44, 22C, 46), chaque rouleau intermédiaire supérieur étant disposé entre des tambours sécheurs supérieurs adjacents de sorte que chaque rouleau intermédiaire supérieur alterné (22C) guide à la fois la bande et le feutre de sorte que la bande est transferrée en tirage ouvert entre les tambours sécheurs supérieurs et inférieurs adjacents ce qui permet de réduire au minimum la longueur du tirage ouvert et empêcher le flottement de la bande pendant son transfert entre les tambours sécheurs supérieurs et inférieurs.

Claims (15)

1. Appareil de sécherie (10C) destiné à sécher une bande (WC) s'étendant à travers lui, ledit appareil possédant plusieurs tambours sécheurs inférieurs (20C, 34, 36) et plusieurs tambours sécheurs supérieurs (16C, 18C, 38), ledit appareil englobant : un feutre inférieur (14C) qui entoure partiellement chacun des tambours sécheurs inférieurs de l'ensemble des tambours sécheurs inférieurs (20C, 34, 36); plusieurs cylindres intermédiaires inférieurs (24C, 28C, 40, 42), chaque cylindre intermédiaire inférieur étant disposé entre des tambours sécheurs inférieurs adjacents (20C, 34, 36); un feutre supérieur (12C) qui entoure partiellement chaque tambour sécheur supérieur (16C, 18C, 38) de l'ensemble des tambours sécheurs supérieurs; plusieurs cylindres intermédiaires supérieurs (44, 22C, 46), caractérisé en ce que seulement chaque cylindre intermédiaire inférieur disposé en alternance guide à la fois la bande (WC) et le feutre inférieur (14C) et chaque cylindre intermédiaire supérieur est disposé entre des tambours sécheurs supérieurs adjacents, si bien que seulement chaque cylindre intermédiaire supérieur disposé en alternance, guide à la fois la bande (WC) et ledit feutre supérieur (12C) de telle sorte que la bande (WC) est transférée en tirage ouvert (48) entre des tambours sécheurs supérieur et inférieur adjacents, minimisant ainsi la longueur (D5) dudit tirage ouvert (48) et inhibant le flottement de la bande lors de son transfert entre les tambours sécheurs supérieur et inférieur.
2. Appareil de sécherie selon la revendication 1, dans lequel ledit feutre inférieur (14C) presse la bande (WC) en contact physique avec les tambours sécheurs inférieurs (20C, 34, 36) de telle sorte que, lorsqu'on chauffe les tambours sécheurs inférieurs, la bande (WC) pressée contre les tambours sécheurs inférieurs est séchée, ledit feutre inférieur s'étendant en une configuration sinusoïdale entre chaque tambour sécheur inférieur et chaque cylindre intermédiaire inférieur adjacents.
3. Appareil de sécherie selon la revendication 1, dans lequel chaque cylindre intermédiaire inférieur disposé en alternance qui guide à la fois la bande (WC) et ledit feutre inférieur (14C), est disposé en position adjacente à un cylindre intermédiaire supérieur (44, 22C, 46) qui est partiellement entouré par seulement ledit feutre supérieur (12C), chacun desdits cylindres intermédiaires inférieurs disposés en alternance étant un cylindre à vide.
4. Appareil de sécherie selon la revendication 1, dans lequel chacun desdits cylindres inférieurs disposés en alternance est un cylindre rainuré.
5. Appareil de sécherie selon la revendication 3, dans lequel ledit cylindre intermédiaire inférieur (24C, 28C, 40, 42), qui guide à la fois la bande (WC) et ledit feutre inférieur (14C), est disposé à une première distance par rapport audit cylindre intermédiaire supérieur (44, 22C, 46) qui est partiellement entouré par seulement ledit feutre supérieur (12C), chacun desdits cylindres intermédiaires inférieurs qui sont partiellement entourés par ledit feutre inférieur seulement, étant disposé à une seconde distance par rapport aux cylindres intermédiaires supérieurs adjacents partiellement entourés à la fois par la bande et ledit feutre supérieur, ladite seconde distance étant supérieure à ladite première distance.
6. Appareil de sécherie selon la revendication 3, dans lequel ledit cylindre intermédiaire inférieur (24C, 28C, 40, 42), qui guide à la fois la bande (WC) et ledit feutre inférieur (14C), est disposé à une première distance par rapport audit cylindre intermédiaire supérieur (44, 22C, 46) qui est partiellement entouré par seulement ledit feutre supérieur, chacun desdits cylindres intermédiaires inférieurs qui sont partiellement entourés par ledit feutre inférieur seulement, étant disposé à une seconde distance par rapport aux cylindres intermédiaires supérieurs adjacents partiellement entourés à la fois par la bande et ledit feutre supérieur, ladite seconde distance étant la même que ladite première distance.
7. Appareil de sécherie selon la revendication 1, dans lequel chaque cylindre intermédiaire inférieur (24C, 28C, 40, 42) qui est partiellement entouré par ledit feutre inférieur (14C) et par la bande (WC), et chaque cylindre intermédiaire supérieur (44, 22C, 46) qui est partiellement entouré par ledit feutre supérieur et par la bande, définissent une poche (50, 51).
8. Appareil de sécherie selon la revendication 7, englobant, en outre :
   un caisson de soufflage (52) disposé au sein de chacune desdites poches (51) dans le but de ventiler chacune desdites poches et d'éliminer l'air marginal entrant dans lesdites poches.
9. Appareil de sécherie selon la revendication 1, dans lequel ledit feutre supérieur (12C) presse la bande (WC) en contact physique avec les tambours sécheurs supérieurs (16C, 18C, 38) de telle sorte que, lorsqu'on chauffe les tambours sécheurs supérieurs, la bande pressée contre les tambours sécheurs supérieurs est séchée, ledit feutre supérieur s'étendant en une configuration sinusoïdale entre chaque tambour sécheur supérieur et chaque cylindre intermédiaire supérieur adjacents.
10. Appareil de sécherie selon la revendication 1, dans lequel chaque cylindre intermédiaire supérieur disposé en alternance, qui guide à la fois la bande (WC) et ledit feutre supérieur (12C), est disposé en position adjacente à un cylindre intermédiaire inférieur (24C, 28C, 40, 42) qui est partiellement entouré par seulement ledit feutre inférieur, chacun des cylindres supérieurs disposés en alternance étant un cylindre à vide.
11. Appareil de sécherie selon la revendication 1, englobant, en outre :
   plusieurs racles (56, 57, 58, 59), chaque racle faisant partie de l'ensemble desdites racles coopérant avec un tambour sécheur correspondant des tambours sécheurs supérieur et inférieur, si bien que chaque racle vient se mettre en contact avec une surface non entourée de chaque tambour respectif.
12. Appareil de sécherie selon la revendication 11, dans lequel lesdites racles apportent leur collaboration quant à la stabilisation de la bande (WC) en limitant l'influence des écoulements d'air externe, lesdites racles apportant également leur collaboration quant à diriger une amorce de la bande lors de la mise en place de la bande dans l'appareil, sans utiliser de câbles.
13. Appareil de sécherie selon la revendication 1, englobant, en outre :
   un conduit (64) disposé en position adjacente à chaque cylindre intermédiaire inférieur, partiellement entouré seulement par ledit feutre inférieur (14C); ledit conduit soufflant de l'air à travers ledit feutre inférieur dans le but de ventiler une poche de sécheur adjacent, définie entre lesdits feutres supérieur et inférieur.
14. Appareil de sécherie selon la revendication 1, englobant, en outre :
   un moyen de ventilation (68) disposé en position adjacente à chaque cylindre intermédiaire supérieur partiellement entouré seulement par ledit feutre supérieur, ledit moyen de ventilation soufflant de l'air à travers le feutre supérieur dans le but de ventiler l'air d'une poche de sécheur adjacent, définie entre lesdits feutres supérieur et inférieur.
15. Procédé destiné à sécher une bande s'étendant à travers une sécherie d'une machine de fabrication du papier, le procédé englobant les étapes consistant à :
   guider la bande entre un feutre inférieur et un sécheur inférieur à tambour;
   diriger la bande en tirage ouvert en direction de et autour d'un tambour sécheur supérieur de telle sorte que la bande soit disposée entre le tambour sécheur supérieur et un feutre supérieur;
   déplacer la bande et le feutre supérieur en combinaison autour d'un cylindre intermédiaire supérieur et, ensuite, autour d'un second tambour sécheur supérieur;
   diriger le feutre supérieur autour d'un second cylindre intermédiaire supérieur;
   déplacer la bande non supportée à l'écart du second tambour sécheur supérieur en direction de et autour d'un second tambour sécheur inférieur, si bien que la bande est disposée entre le second tambour sécheur inférieur et le feutre inférieur; et
   déplacer ensuite la bande et le feutre inférieur en combinaison et conjointement autour d'un second cylindre intermédiaire inférieur en direction d'un troisième tambour sécheur inférieur, de telle sorte que la bande vient se mettre en contact intime avec la surface chauffée de chacun des tambours sécheurs chauffés et que la distance parcourue par la bande en n'étant pas supportée entre des tambours sécheurs adjacents, est minimisée.
EP88909246A 1987-07-23 1988-06-13 Secheuse Expired - Lifetime EP0368937B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88909246T ATE79425T1 (de) 1987-07-23 1988-06-13 Trockenpartie.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8717387 1987-07-23
GB878717387A GB8717387D0 (en) 1987-07-23 1987-07-23 Dryer section apparatus
US110405 1987-10-19
US07/110,405 US4835881A (en) 1987-07-23 1987-10-19 Dryer section apparatus

Publications (2)

Publication Number Publication Date
EP0368937A1 EP0368937A1 (fr) 1990-05-23
EP0368937B1 true EP0368937B1 (fr) 1992-08-12

Family

ID=26292530

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88909246A Expired - Lifetime EP0368937B1 (fr) 1987-07-23 1988-06-13 Secheuse

Country Status (6)

Country Link
EP (1) EP0368937B1 (fr)
JP (1) JPH076156B2 (fr)
AU (1) AU608386B2 (fr)
BR (1) BR8807626A (fr)
FI (1) FI89523C (fr)
WO (1) WO1989001073A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI92420C (fi) * 1992-04-10 1994-11-10 Valmet Paper Machinery Inc Paperiradan stabilointilaite paperikoneen kuivatusosan sylinteriryhmässä
DE4328555A1 (de) * 1993-08-25 1994-03-31 Voith Gmbh J M Trockenpartie

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE343644C (fr) *
DE92297C (fr) *
US3384973A (en) * 1966-06-09 1968-05-28 Svenska Flaektfabriken Ab Ventilating dryers
DE1931922A1 (de) * 1969-06-24 1971-01-21 Voith Gmbh J M Trockeneinrichtung zum Trocknen einer feuchten Bahn,insbesondere Trockenpartie einer Papiermaschine
JPS4515607Y1 (fr) * 1969-09-09 1970-06-30
US4483083A (en) * 1982-08-18 1984-11-20 Beloit Corporation Drying and runnability for high speed paper machines
FI68278C (fi) * 1983-03-01 1985-08-12 Valmet Oy Fickventilationsanordning foer en maongcylindertork i en pappersmaskin
FI68279C (fi) * 1984-03-22 1985-08-12 Valmet Oy Foerfarande och anordning foer att hindra pappersbanan att fladdra i torkningspartiet av en pappersmaskin
DE3623971A1 (de) * 1986-07-16 1988-01-28 Voith Gmbh J M Trockenpartie zur trocknung einer faserstoffbahn

Also Published As

Publication number Publication date
FI900306A0 (fi) 1990-01-19
FI89523B (fi) 1993-06-30
JPH03500790A (ja) 1991-02-21
JPH076156B2 (ja) 1995-01-30
FI89523C (fi) 1995-04-25
AU608386B2 (en) 1991-03-28
WO1989001073A2 (fr) 1989-02-09
WO1989001073A3 (fr) 1989-02-23
EP0368937A1 (fr) 1990-05-23
AU2551288A (en) 1989-03-01
BR8807626A (pt) 1990-06-26

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