EP1156154A2 - Dispositif pour la fabrication d' une bande de matériau - Google Patents

Dispositif pour la fabrication d' une bande de matériau Download PDF

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Publication number
EP1156154A2
EP1156154A2 EP01105627A EP01105627A EP1156154A2 EP 1156154 A2 EP1156154 A2 EP 1156154A2 EP 01105627 A EP01105627 A EP 01105627A EP 01105627 A EP01105627 A EP 01105627A EP 1156154 A2 EP1156154 A2 EP 1156154A2
Authority
EP
European Patent Office
Prior art keywords
machine according
ventilation device
roller
outlet openings
blow
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Withdrawn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
EP01105627A
Other languages
German (de)
English (en)
Other versions
EP1156154A3 (fr
Inventor
Peter Kahl
Markus Oechsle
Roland Mayer
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 Paper Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1156154A2 publication Critical patent/EP1156154A2/fr
Publication of EP1156154A3 publication Critical patent/EP1156154A3/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Withdrawn legal-status Critical Current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
    • 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
    • D21F3/0272—Wet presses in combination with suction or blowing devices

Definitions

  • the invention relates to a machine for producing a material web, in particular a cardboard or paper web, with at least one of the Material web wrapped around smooth roller.
  • the paper web is in the multi-cylinder dryer section of a paper machine for drying over steam-heated cylinders or over steam-heated ones Cylinder and suction rolls guided.
  • problems with web guiding often occur, in particular are due to the fact that the wet web on the smooth Contact areas that are essential for good heat transfer are stuck, and the web is poorly ventilated.
  • a corresponding differential speed generated before or immediately after the first smooth contact surface can be. This often leads to tearing and overstretching the edges. Because at higher speeds these problems intensified occur and the train must be increased is the paper machine speed limited.
  • the aim of the invention is to provide an improved machine of the type mentioned kind of creating that eliminates the aforementioned problems are. It should in particular be achieved that the to replace the Web required tension or web tension reduced by the smooth roller becomes.
  • roller Ventilation device is assigned, the outlet jet in the Gusset between the roller and the material web running from it is directed to ventilate the material web.
  • exit jet the ventilation device preferably directly into this gusset directed.
  • This training results in improved rear ventilation of the Material web, causing the web adhering to the roller to be pulled off is facilitated.
  • the ventilation device can in particular be supplied with compressed air.
  • the ventilation device preferably comprises several in particular formed by nozzles, blow holes, blow slots and / or the like Outlet openings.
  • the ventilation device comprises at least one blow pipe.
  • the ventilation device can at least essentially over the extend the entire web width.
  • the exit jet of the ventilation device directed into the gusset is preferably slightly directed towards the roller surface.
  • the blow-out speed of the exit jet is advantageously variable adjustable. It is preferably dependent on the distance the ventilation device can be selected from the gusset. The blowing speed The greater the distance from the gusset, the greater must be.
  • the division of the outlet openings of the ventilation device can be over the web width vary. For example, the distance between the Distinguish outlet openings in the edge area from that in the middle area. Here, the distance between the outlet openings in the edge area be smaller or larger than in the middle area. Accordingly, the Ventilation can be optimally adapted to the respective circumstances, whereby excessive air volumes can be avoided.
  • the ventilation device can be in a scraper assigned to the roller integrated or attached to such a scraper, so that a transfer is possible from the scraper, which means that the web in the event of demolition does not run between the scraper and the ventilation device.
  • the ventilation device is expediently provided with a cover provided to provide adequate protection especially against scraps of paper to care. This precludes the ventilation device becomes a scraper.
  • the scraper position should be chosen so that it guarantees adequate ventilation, on the one hand, sufficiently close to the gusset and on the other hand to avoid blocking in the event of a break in one sufficient distance from the gusset is arranged.
  • outlet openings of the ventilation device are expedient depending on the machine speed, the basis weight, the fabric and / or the type of paper selected.
  • the outlet openings for example circular, can be one Have diameters, in particular in a range from about 2 to about 12 mm and preferably in a range from about 4 to about 8 mm lies.
  • the blow-out speed of the outlet jet of the ventilation device is preferably greater than about 35 m / s, and preferably greater than about 50 m / s.
  • the roller in question can, for example, by a drying cylinder be educated.
  • the ventilation device is expediently so built up and / or isolated that a thermal deformation and a this causes a deviation from the desired blowing direction is excluded.
  • the ventilation device is used at the same time the ventilation of one of the roller or the drying cylinder assigned Hood. It can be operated with the hood supply air temperature.
  • the roller is formed by the first cylinder of the dryer section. It is however, it is also possible to use at least one of the second to fifth cylinders to assign a suitable ventilation device to the dryer section.
  • the roller is a smooth press roll formed.
  • At least one further cylinder can also be used and / or at least one corresponding smooth roller Ventilation device can be assigned.
  • Figures 1 to 4 each show a purely schematic representation smooth roller 10 of a machine for producing a material web 12, at which can in particular be a cardboard or paper web.
  • the roller 10 wrapped in the material web 12 is a scraper 14 assigned.
  • the smooth roller 10 can be, for example, a drying cylinder or a smooth press roll.
  • the roller 10 is assigned a ventilation device 16, the exit jet 18 in the gusset 20 between the roller 10 and the latter running material web 12 is directed to the material web 12 ventilate.
  • the exit jet 18 is the ventilation device 16 directed directly into the gusset 20.
  • the ventilation device 16 can in particular be supplied with compressed air his.
  • the ventilation device comprises 16 at least one blow pipe.
  • This blowpipe can at least extend substantially over the entire width of the web.
  • the exit jet 18 directed into the gusset 20 can easily be against the Roll surface 24 to be directed.
  • the discharge velocity of the exit jet 18 can be variably adjustable. It depends on the distance of the ventilation device 16 from the gusset 20 can be selected.
  • the division of the outlet openings 22 can vary over the web width.
  • the distance between the outlet openings 22 can Differentiate the edge area from that in the middle area.
  • the Distance of the outlet openings 22 in the edge area is smaller or larger than be in the middle.
  • the ventilation device 16 can be integrated in the scraper 14 or on be attached to it (cf. in particular FIGS. 2 to 4).
  • the ventilation device 16 can be provided with a cover (not shown) be provided. This precludes this ventilation device 16 becomes a scraper.
  • the size and / or number of outlet openings 22 are expedient depending on the machine speed, the basis weight, the fabric and / or the type of paper selected.
  • The, for example, circular outlet openings 22 can be one Have diameters, in particular in a range from about 2 to about 12 mm and preferably in a range from about 4 to about 8 mm lies.
  • the blow-out speed of the exit jet 18 can, for example greater than about 35 m / s, and preferably greater than about 50 m / s his.
  • the ventilation device 16 is one formed by a drying cylinder Assigned roller 10, it can simultaneously the ventilation of a serve the hood associated with the drying cylinder.
  • the ventilation device 16 be operated with hood supply air temperature.
  • the ventilation device 16 separate vcm scraper 14 is provided, it is in the in the Figures 2 to 4 illustrated embodiments integrated in the scraper 14 or attached to it.
  • FIG 4 shows the roller 10 in demolition mode.
  • the ventilation device 16 so integrated in the scraper 14 or attached to it that the web 12 in this case of tearing not between the scraper and the ventilation device running.

Landscapes

  • Paper (AREA)
  • Drying Of Solid Materials (AREA)
  • Making Paper Articles (AREA)
EP01105627A 2000-05-17 2001-03-07 Dispositif pour la fabrication d' une bande de matériau Withdrawn EP1156154A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10024296A DE10024296B4 (de) 2000-05-17 2000-05-17 Maschine zur Herstellung einer Materialbahn
DE10024296 2000-05-17

Publications (2)

Publication Number Publication Date
EP1156154A2 true EP1156154A2 (fr) 2001-11-21
EP1156154A3 EP1156154A3 (fr) 2002-07-17

Family

ID=7642473

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01105627A Withdrawn EP1156154A3 (fr) 2000-05-17 2001-03-07 Dispositif pour la fabrication d' une bande de matériau

Country Status (3)

Country Link
US (1) US6705024B2 (fr)
EP (1) EP1156154A3 (fr)
DE (1) DE10024296B4 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1316644A1 (fr) * 2001-12-03 2003-06-04 Voith Paper Patent GmbH Procédé pour faciliter le transfert d'une bande fibreuse en mouvement, telle qu'une bande de papier, de carton ou de papier tissu
EP1353007A1 (fr) * 2002-04-11 2003-10-15 Voith Paper Patent GmbH Dispositif de soufflage

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10204698A1 (de) * 2002-02-06 2003-08-07 Voith Paper Patent Gmbh Zwickelblasrohr
DE10231936A1 (de) * 2002-07-15 2004-01-29 Voith Paper Patent Gmbh Verfahren zur Steuerung und/oder Regelung des Ablöseverhaltens einer Materialbahn bei deren Abnahme von einer bewegten Fläche
FI115310B (fi) * 2002-12-20 2005-04-15 Metso Paper Inc Paperi- tai kartonkikoneen kaavari
DE10311993A1 (de) * 2003-03-19 2004-10-14 Voith Paper Patent Gmbh Verfahren zur Behandlung einer Faserstoffbahn
CN101711188A (zh) * 2008-02-28 2010-05-19 卡登特网络体系股份有限公司 包括至少一个内部增压室的可定位刮刀刀片
FI20085486A7 (fi) * 2008-05-22 2009-11-23 Valmet Technologies Inc Menetelmä ja sovitelma rainan päänviennissä kuiturainakoneen kuivatusosalla
CN106120425A (zh) * 2016-08-08 2016-11-16 无锡裕力机械有限公司 造纸机用无绳引纸系统

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI86447C (fi) * 1990-12-03 1992-08-25 Valmet Paper Machinery Inc Blaosnings- och konditioneringsanordning foer en omsvaengd cylindergrupp i torkningspartiet av en pappersmaskin.
DE4303315A1 (en) * 1993-02-05 1993-06-24 Voith Gmbh J M Paper-making roller scraper - acts together with moist air to reduce blade wear
SE9400728L (sv) * 1993-03-11 1994-09-12 Voith Gmbh J M Cylindertorkmaskin med två viror
US5337490A (en) * 1993-06-21 1994-08-16 Champion International Corporation Single tier dryer threading nozzle for paper machines
AT400728B (de) * 1994-07-13 1996-03-25 Andritz Patentverwaltung Verfahren und vorrichtung an einem papiermaschinenzylindertrockner mit zweisiebführung
DE19548303B4 (de) 1995-12-22 2006-08-31 Voith Paper Patent Gmbh Trockenpartie
DE29613809U1 (de) * 1996-08-09 1996-09-26 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Vorrichtung zum Trocknen einer Faserstoffbahn
US5881472A (en) * 1997-10-22 1999-03-16 Beloit Technologies, Inc. Ventilator apparatus for inhibiting flutter in a web dryer
FI104646B (fi) * 1998-07-03 2000-03-15 Valmet Corp Laitteisto ja menetelmä paperi-/kartonkiradan johtamisessa pulpperiin

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1316644A1 (fr) * 2001-12-03 2003-06-04 Voith Paper Patent GmbH Procédé pour faciliter le transfert d'une bande fibreuse en mouvement, telle qu'une bande de papier, de carton ou de papier tissu
EP1353007A1 (fr) * 2002-04-11 2003-10-15 Voith Paper Patent GmbH Dispositif de soufflage

Also Published As

Publication number Publication date
EP1156154A3 (fr) 2002-07-17
DE10024296B4 (de) 2008-11-20
US20020078588A1 (en) 2002-06-27
US6705024B2 (en) 2004-03-16
DE10024296A1 (de) 2001-11-22

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