EP0726355B1 - Verfahren zum Transfer eines Papierstreifens von einer ersten zu einer zweiten Bearbeitungsstation in einer Papiermaschine - Google Patents

Verfahren zum Transfer eines Papierstreifens von einer ersten zu einer zweiten Bearbeitungsstation in einer Papiermaschine Download PDF

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Publication number
EP0726355B1
EP0726355B1 EP96101393A EP96101393A EP0726355B1 EP 0726355 B1 EP0726355 B1 EP 0726355B1 EP 96101393 A EP96101393 A EP 96101393A EP 96101393 A EP96101393 A EP 96101393A EP 0726355 B1 EP0726355 B1 EP 0726355B1
Authority
EP
European Patent Office
Prior art keywords
paper web
transfer
drying
air
air jets
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
EP96101393A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0726355A3 (enrdf_load_stackoverflow
EP0726355A2 (de
Inventor
Erlfried Atzinger
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 EP0726355A2 publication Critical patent/EP0726355A2/de
Publication of EP0726355A3 publication Critical patent/EP0726355A3/xx
Application granted granted Critical
Publication of EP0726355B1 publication Critical patent/EP0726355B1/de
Anticipated expiration legal-status Critical
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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
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G9/00—Other accessories for paper-making machines
    • D21G9/0063—Devices for threading a web tail through a paper-making machine

Definitions

  • Reference (1) shows and describes a dryer section a paper machine.
  • This dryer section shows in a first part a single-row cylinder group with a single felt.
  • the felt with the one on it resting web runs alternately over drying cylinders and deflection suction rolls.
  • the dryer section has two rows of drying cylinders with two felts.
  • the train runs alternately across the lower and upper cylinders.
  • Threading strips a narrow margin (the so-called Threading strips) through the entire dryer section guided.
  • Blower nozzles are used in this context to transfer the web from a drying cylinder to the others.
  • the fan nozzles generate air jets that are essentially in the transfer direction of the edge strip run.
  • the air jets drive the edge strip in the desired direction, namely from a first (upstream) drying cylinder to a second (downstream) Drying cylinder to the edge strip from the first Drying cylinder towards the second drying cylinder convict.
  • This transfer has always stopped Problem.
  • the direct transfer of the verge in certain places it was often not possible. occasionally the edge strip flutters, so that the whole Process of guiding the edge strip is time consuming is. However, this means a relatively long time Downtime of the paper machine and therefore one reduced production.
  • Reference (2) also shows and describes the Transfer of a narrow edge strip in the dryer section a paper machine.
  • a Air jet generated that the direction of the paper web is opposite, but describes not a free, i.e. open-chain transfer the paper strip, but the paper strip adheres to the outer surface of a cylinder and becomes scraped off by a scraper, taking the fan air the detachment supports.
  • the object of the present invention is to provide a method of transferring a Paper web in a drying section of a paper making machine, where a fast and stable Guidance of the paper web can be guaranteed can, so that the transfer with higher reliability and higher speed is feasible.
  • each of these one-felt cylinder groups 11 to 16 a single endless Felt on.
  • Runs in the first cylinder group 11 the felt, for example, alternating with the web 9 via drying cylinder 51 and deflection rollers 51 ', preferably as Suction rolls are formed.
  • 16 comes with the underside of the web Cylinders in contact. Accordingly, here are the Drying cylinders 51, 52, 54, 56 above the associated ones Deflection suction rollers 51 ', 52', 54 'and 56'; the cylinders are felted here.
  • the deflection suction rollers 51 ' up to 56 ' are free of internal stationary installations and direct suction connections. Instead it is on each of these deflection suction rolls has an external suction box 59 intended. This lies in between two neighboring ones So-called pocket drying cylinders and at the point where felt F and web 9 together have the leave the first of these two cylinders, a ledge, which brought the felt up Air boundary layer strips and redirects.
  • the last single felt cylinder group 16 follows a two-felt cylinder group 17 with several lower ones Cylinders 57 and several upper cylinders 57 'and with a bottom felt UF and a top felt OF. Here it runs Lane 9 meandering alternately over the lower and upper cylinder.
  • Figure 2 shows another dryer section the transfer area between the last single felt cylinder group and the first two-felt cylinder group shown.
  • the last two drying cylinders 73 the last one-felt cylinder group 23 and the first three cylinders 74, 74 'of the two-felt cylinder group 24 see.
  • a deflection suction roll 73 ' is also included an internal suction box and before the first lower one Drying cylinder 74 a transverse deflection roller 58, which also has a stationary internal suction box.
  • An automatic, rope-free deflection device for one Edge strip is in the one-felt cylinder group 23 trained, for example such that each Deflection suction roll 73 at one of its two ends known edge suction area.
  • blower air devices that are symbolically indicated by arrows, as well as a Fan air nozzle 79 is provided.
  • an edge suction box R (which is only in the Area of the edge strip is active), a web stabilizing device or the like may be arranged.
  • a short "edge deflection scraper" 88 that only the Area of the edge strip and also covers one Fan air nozzle may be on the last one Cylinder 73 arranged.
  • blower nozzles 101, 102 shown in FIG. 103, 104 are absolutely crucial. They serve for Transfer of an edge strip from the first lower one Drying cylinder 74 of the two-felt cylinder group 24 - to that first upper drying cylinder 74 'thereof.
  • blower nozzles 102, 104 their air jets down and thus in the transfer direction are oriented in the opposite direction, available. It has been found that a extremely stable guidance of the edge strip is possible.
  • the air jets of the nozzles 101, 103 produce a conveying effect, by quickly moving the edge strip upwards take it to the drying cylinder 74 '.
  • the air jets of the two fan nozzles 102, 104 on the other hand making sure that the edge strip is in a stable position takes and immediately after leaving the first lower Drying cylinder 74 of the cylinder group 24 the right one Direction to the first upper drying cylinder 74 '.
  • the two fan nozzles 101, 102 and the two Blower nozzles 103, 104 can be combined in terms of construction be and therefore carried by a single holder become.
  • FIG. 3 is again on a larger scale Transfer area shown. It's the blower nozzles again 102, 104 can be seen.
  • the blower nozzles 101, 103 were the Overview omitted for the sake of the drawing. How to see has the air jet 102.1 from the blower nozzle 102 Component 102.2, which is perpendicular to the direction of the verge 9, and a component 102.3 which the direction of the edge strip 9 exactly opposite is. Exactly the same applies to the air jets 104.1 from the blower nozzle 104 with the components 104.2 and 104.3.

Landscapes

  • Paper (AREA)
  • Drying Of Solid Materials (AREA)
EP96101393A 1995-02-09 1996-02-01 Verfahren zum Transfer eines Papierstreifens von einer ersten zu einer zweiten Bearbeitungsstation in einer Papiermaschine Expired - Lifetime EP0726355B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US38600795A 1995-02-09 1995-02-09
US386007 1995-02-09

Publications (3)

Publication Number Publication Date
EP0726355A2 EP0726355A2 (de) 1996-08-14
EP0726355A3 EP0726355A3 (enrdf_load_stackoverflow) 1996-08-21
EP0726355B1 true EP0726355B1 (de) 2002-06-05

Family

ID=23523767

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96101393A Expired - Lifetime EP0726355B1 (de) 1995-02-09 1996-02-01 Verfahren zum Transfer eines Papierstreifens von einer ersten zu einer zweiten Bearbeitungsstation in einer Papiermaschine

Country Status (5)

Country Link
US (1) US5718058A (enrdf_load_stackoverflow)
EP (1) EP0726355B1 (enrdf_load_stackoverflow)
CA (1) CA2169208A1 (enrdf_load_stackoverflow)
DE (1) DE59609272D1 (enrdf_load_stackoverflow)
FI (1) FI114491B (enrdf_load_stackoverflow)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19548303B4 (de) * 1995-12-22 2006-08-31 Voith Paper Patent Gmbh Trockenpartie
FI102197B (fi) * 1997-05-27 1998-10-30 Valmet Corp Menetelmä ja laite paperirainan päänviennissä
DE19726895A1 (de) * 1997-06-25 1999-01-07 Voith Sulzer Papiermasch Gmbh Maschine zur Herstellung einer Materialbahn
FI113883B (fi) 1999-08-12 2004-06-30 Runtech Systems Oy Menetelmä ja laitteisto materiaalirainan käsittelemiseksi ja materiaalirainan käyttäytymisen hallitsemiseksi
DE10016492A1 (de) 2000-04-01 2001-10-11 Voith Paper Patent Gmbh Abführvorrichtung
US6513263B2 (en) 2000-10-06 2003-02-04 Enerquin Air Inc. Ventilator for offset pocket and method of ventilating the same
FI20060757L (fi) * 2006-08-25 2008-02-26 Runtech Systems Oy Menetelmä ja laite paperirainan tai vastaavan ohjaamiseksi
DE102015001008A1 (de) * 2015-01-28 2016-07-28 Andritz Küsters Gmbh Verfahren und Vorrichtung zur Herstellung von nassgelegten Vliesstoffen
DE102023102861A1 (de) * 2023-02-07 2024-08-08 Voith Patent Gmbh Papiermaschine zur Herstellung einer Faserstoffbahn und Verfahren zur Herstellung einer Faserstoffbahn

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB137061A (en) * 1917-01-31 1920-06-17 Great Northern Paper Co Improvements in Paper Making Machines.
US1595477A (en) * 1920-05-25 1926-08-10 Minton Ogden Method and apparatus for drying sheet material
US1595480A (en) * 1922-01-20 1926-08-10 Minton Ogden Method and apparatus for drying sheet material
US3514372A (en) * 1966-11-29 1970-05-26 Beloit Corp Headbox method and means for blending of multiple jets
FR1572200A (enrdf_load_stackoverflow) * 1968-01-05 1969-06-27
AT305754B (de) * 1970-02-18 1973-03-12 Voith Gmbh J M Stoffauflauf für Papiermaschinen
US3843470A (en) * 1970-08-31 1974-10-22 Beloit Corp Flexible trailing elements in a paper-making machine headbox having projections thereon extending into the slurry flow
FI53333C (fi) * 1972-11-13 1978-04-10 Valmet Oy Torkningscylindergrupp i en flercylindertork foer en materialbana i synnerhet foer papper
FI78750B (fi) * 1982-07-20 1989-05-31 Escher Wyss Gmbh Flerskiktsinloppslaoda foer matande av pappersmassa till en vira.
US5101577A (en) * 1987-02-13 1992-04-07 Beloit Corporation Web transfer apparatus
US4945655A (en) * 1987-02-13 1990-08-07 Beloit Corporation Apparatus for cutting a tail from a web
DE3941242A1 (de) * 1989-12-14 1991-06-20 Voith Gmbh J M Fuehrungsplatte zum einfaedeln einer bahn
FI86900C (fi) * 1990-10-01 1992-10-26 Valmet Paper Machinery Inc Foerfarande och anordning vid spetsdragning av en pappersbana i maongcylindertorken av en pappersmaskin
DE4037661C1 (enrdf_load_stackoverflow) * 1990-11-27 1991-12-19 J.M. Voith Gmbh, 7920 Heidenheim, De
FI91900C (fi) * 1990-12-17 1994-08-25 Valmet Paper Machinery Inc Menetelmä paperikoneen kuivatusosalla paperin käyristymistaipumuksen vähentämiseksi ja menetelmän toteuttamiseen tarkoitettu kuivatusosa
US5321899A (en) * 1992-04-13 1994-06-21 J. M. Voith Gmbh Dry end
US5269074A (en) * 1992-04-24 1993-12-14 Beloit Technologies, Inc. Single tier dryer section for curl control
DE4321697C2 (de) * 1993-06-30 2002-05-23 Voith Paper Patent Gmbh Turbulenzeinsatz einer Papiermaschine
DE4328554A1 (de) * 1993-08-25 1994-03-31 Voith Gmbh J M Trockenpartie
US5600897A (en) * 1993-08-06 1997-02-11 J.M. Voith Gmbh Mixed dryer section including single-tier and double-tier drying groups with automatic ropeless threading
FI103820B1 (fi) * 1993-11-30 1999-09-30 Valmet Paper Machinery Inc Menetelmät paperirainan kuivatuksessa sekä paperikoneen kuivatusosat
FI100898B (fi) * 1994-03-02 1998-03-13 Valmet Paper Machinery Inc Paperikoneen kuivatusosan yksiviiraviennillä varustettu sylinteriryhmä ja näitä sisältävä paperikoneen kuivatusosa

Also Published As

Publication number Publication date
CA2169208A1 (en) 1996-08-10
EP0726355A3 (enrdf_load_stackoverflow) 1996-08-21
FI114491B (fi) 2004-10-29
FI960559L (fi) 1996-08-10
FI960559A0 (fi) 1996-02-07
EP0726355A2 (de) 1996-08-14
US5718058A (en) 1998-02-17
DE59609272D1 (de) 2002-07-11

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