EP0756034A2 - Procédé et dispositif pour le séchage d'une bande fibreuse - Google Patents

Procédé et dispositif pour le séchage d'une bande fibreuse Download PDF

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Publication number
EP0756034A2
EP0756034A2 EP96109726A EP96109726A EP0756034A2 EP 0756034 A2 EP0756034 A2 EP 0756034A2 EP 96109726 A EP96109726 A EP 96109726A EP 96109726 A EP96109726 A EP 96109726A EP 0756034 A2 EP0756034 A2 EP 0756034A2
Authority
EP
European Patent Office
Prior art keywords
cylinder
air
wire
screen
web
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.)
Withdrawn
Application number
EP96109726A
Other languages
German (de)
English (en)
Other versions
EP0756034A3 (fr
Inventor
Markus Oechsle
Kurt Dieter
Peter Kahl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith 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
Application filed by Voith Sulzer Papiermaschinen GmbH filed Critical Voith Sulzer Papiermaschinen GmbH
Publication of EP0756034A2 publication Critical patent/EP0756034A2/fr
Publication of EP0756034A3 publication Critical patent/EP0756034A3/fr
Withdrawn legal-status Critical Current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
    • D21F5/042—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices
    • D21F5/046—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices using pocket ventilation systems
    • 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
    • D21F5/042—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices

Definitions

  • the invention relates to a method for drying a fibrous web in a two-wire drying cylinder arrangement, in particular a paper making machine, in detail with the method steps specified in the preamble of claim 1.
  • the invention also relates to a device for performing such a method.
  • the invention has for its object to meet the requirements mentioned as far as possible.
  • an air flow of any pressure is fed solely to the blower device in order to intensify the pocket ventilation in accordance with the respective requirements, and that, independently of this, a second air flow is available, which in the first part of the Manhole existing vacuum - again according to the respective requirements - makes adjustable.
  • an air duct extending from the first part of the shaft is provided between said air guide box and said blowing device. This is already known from other figures in the publications mentioned. In the known arrangements, this air duct is used not only to extract air from the first part of the shaft, but also to ventilate the pocket. However, this known method does not sufficiently ventilate the bag.
  • the method according to the invention (and the device according to the invention) has the advantage that the blowing device can be subjected to an arbitrarily high air throughput in order to intensify the pocket ventilation as desired.
  • the division of the system into two subsystems is also advantageous in that one can now influence the subfunctions individually.
  • FIG. 1 shows a schematic longitudinal section through a two-wire drying cylinder arrangement.
  • the paper web 7 and the dryer fabric 8 run together from a cylinder 4.
  • a boundary air layer 9 is entrained on the side of the dryer fabric facing away from the drying cylinder (4). This is deflected by a seal 10 of the air guide box 11.
  • the dryer fabric and paper web now run in the direction of the dryer fabric guide roller 6.
  • the paper web 7 runs from the dryer fabric guide roller 6 to the next drying cylinder of the next row of cylinders without support.
  • the air guide box 1 feeds the driving nozzle 17 with air via line 18 and channel 13a. By flowing this air into the channel 23, a flow is built up which sucks the area 1.
  • the blowing device 15 is arranged at the “bottom” of the shaft, that is to say in the immediate vicinity of the wire guide roller 6. It has a plurality of blow openings which are directed through the sieve 8 into the pocket T.
  • the blowing device 15 is supplied with compressed air via a line 19 and via channels 13 and 14. But it is also conceivable that the blowing device 15 has its own side compressed air connection. If this solution is implemented, there is no need for connecting channels 14 between the support tube 11 and the blower device 15.
  • the gusset-shaped area 2 of the shaft (between the blower device 15, screen guide roller 6 and screen 8) is delimited by sealing elements 16 and 17. One seal 16 runs along the path of the wire 8, the other (17) along the jacket of the wire guide roller 6.
  • the air guide box 11 has a tube 12 as a supporting element, the interior of which is divided into two halves by an intermediate wall 22, which form the channels 13 and 13a.
  • the blowing device 15 is rigidly connected to the tube 12 via the channels 14 already mentioned.

Landscapes

  • Paper (AREA)
  • Drying Of Solid Materials (AREA)
EP96109726A 1995-07-26 1996-06-18 Procédé et dispositif pour le séchage d'une bande fibreuse Withdrawn EP0756034A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1995127289 DE19527289C2 (de) 1995-07-26 1995-07-26 Verfahren zur Taschenbelüftung und einen Luftleitkasten zur Durchführung des Verfahrens in einer Zwei-Sieb-Trockenpartie einer Papierherstellungsmaschine
DE19527289 1995-07-26

Publications (2)

Publication Number Publication Date
EP0756034A2 true EP0756034A2 (fr) 1997-01-29
EP0756034A3 EP0756034A3 (fr) 1998-01-28

Family

ID=7767828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96109726A Withdrawn EP0756034A3 (fr) 1995-07-26 1996-06-18 Procédé et dispositif pour le séchage d'une bande fibreuse

Country Status (5)

Country Link
EP (1) EP0756034A3 (fr)
CN (1) CN1147620A (fr)
BR (1) BR9604004A (fr)
CA (1) CA2182137A1 (fr)
DE (1) DE19527289C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832362A (en) * 1997-02-13 1998-11-03 The Procter & Gamble Company Apparatus for generating parallel radiation for curing photosensitive resin
WO2011076251A3 (fr) * 2009-12-21 2011-10-06 Metso Paper, Inc. Composant facilitant le passage sur machine
WO2012120200A1 (fr) * 2011-03-08 2012-09-13 Metso Paper, Inc. Composant d'aptitude au passage sur machine et procédé permettant d'améliorer l'efficacité d'un composant d'aptitude au passage sur machine d'une machine à papier

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29613809U1 (de) * 1996-08-09 1996-09-26 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Vorrichtung zum Trocknen einer Faserstoffbahn
DE19850760A1 (de) * 1998-11-05 2000-05-11 Voith Sulzer Papiertech Patent Vorrichtung zur Behandlung einer Materialbahn
FI20050596A0 (fi) * 2005-06-06 2005-06-06 Metso Paper Inc Järjestely ja menetelmä kuivatussylinterien välisen taskutilan tiivistämiseksi paperikoneessa tai vastaavassa
CN106181885B (zh) * 2016-09-09 2017-05-31 安徽山鹰纸业股份有限公司 一种造纸机干部稳纸风箱拆装装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0472513A1 (fr) * 1990-08-21 1992-02-26 Andritz-Patentverwaltungs-Gesellschaft m.b.H. Procédure et disposition dans une section de séchoir à tambours de machine à papier
US5379526A (en) * 1992-01-13 1995-01-10 Valmet Paper Machinery Inc. Apparatus for eliminating the flutter of a paper web in the dryer section of a papermaking machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI80103C (fi) * 1987-06-17 1990-04-10 Valmet Paper Machinery Inc Foerfarande och anordning i cylindertorken av en pappersmaskin, vid vilken ett drag med dubbel vaevnad anvaends.
DE4404726C2 (de) * 1993-03-11 1996-04-25 Voith Gmbh J M Taschenventilation in einem Zwei-Sieb-Zylindertrockner

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0472513A1 (fr) * 1990-08-21 1992-02-26 Andritz-Patentverwaltungs-Gesellschaft m.b.H. Procédure et disposition dans une section de séchoir à tambours de machine à papier
US5379526A (en) * 1992-01-13 1995-01-10 Valmet Paper Machinery Inc. Apparatus for eliminating the flutter of a paper web in the dryer section of a papermaking machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832362A (en) * 1997-02-13 1998-11-03 The Procter & Gamble Company Apparatus for generating parallel radiation for curing photosensitive resin
WO2011076251A3 (fr) * 2009-12-21 2011-10-06 Metso Paper, Inc. Composant facilitant le passage sur machine
WO2012120200A1 (fr) * 2011-03-08 2012-09-13 Metso Paper, Inc. Composant d'aptitude au passage sur machine et procédé permettant d'améliorer l'efficacité d'un composant d'aptitude au passage sur machine d'une machine à papier

Also Published As

Publication number Publication date
DE19527289A1 (de) 1997-01-30
BR9604004A (pt) 1998-06-09
EP0756034A3 (fr) 1998-01-28
CN1147620A (zh) 1997-04-16
CA2182137A1 (fr) 1997-01-27
DE19527289C2 (de) 2000-09-14

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