CA2190563A1 - Device and method to stabilize sheet between press section and dryer section of a paper-making machine - Google Patents
Device and method to stabilize sheet between press section and dryer section of a paper-making machineInfo
- Publication number
- CA2190563A1 CA2190563A1 CA2190563A CA2190563A CA2190563A1 CA 2190563 A1 CA2190563 A1 CA 2190563A1 CA 2190563 A CA2190563 A CA 2190563A CA 2190563 A CA2190563 A CA 2190563A CA 2190563 A1 CA2190563 A1 CA 2190563A1
- Authority
- CA
- Canada
- Prior art keywords
- venturi
- felt
- fabric
- inlet
- guide roll
- 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.)
- Granted
Links
Classifications
-
- 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
Abstract
A novel sheet transfer stabilizer is provided for transferring a fibrous wet sheet from a press section to a dryer section of a paper-making machine by way of a felt or fabric. The sheet transfer stabilizer includes a composite Venturi box which is disposed between a felt or fabric roll of the press section and a first dryer. The Venturi box includes three side-by-side Venturis, namely an inlet Venturi, an outlet Venturi, and a main Venturi. Such Venturi boxes are used to create and maintain a vacuum in the felt or fabric web system. In addition, a novel method is provided for guiding a wet fibrous web from a press section to a drying section of a paper-making machine. The method includes the steps of passing the wet fibrous web from the press section in an open draw onto a felt or fabric, the felt or fabric passing about a guide roll. The wet fibrous web and the felt or fabric, are urged against each other as a drying wire of the drying section passes from the guide roll to a drying cylinder by the generation of negative pressure in the space on the side of the felt or fabric, which is opposite to the side of the felt or fabric, which supports the fibrous web. The negative pressure is generated using the combination of an inlet Venturi, having an inlet opening and a throat, the inlet Venturi being located adjacent to the guide roll in order to draw up and exhaust air from an area where the paper web separates from the surface of the guide roll, or an outlet Venturi having an inlet opening and a throat, the outlet Venturi being situated adjacent to the drying cylinder to draw away air from a gap between the dryer cylinder and the inlet opening of the outlet Venturi; or a main Venturi having a first and second inlet openings and throat, the main Venturi being disposed between the inlet Venturi and the outlet Venturi to draw away air away from, and to maintain a negative static pressure over, an unsupported span between the guide roll and the dryer cylinder.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002190563A CA2190563C (en) | 1996-11-18 | 1996-11-18 | Device and method to stabilize sheet between press section and dryer section of a paper-making machine |
US08/901,556 US5792318A (en) | 1996-11-18 | 1997-07-20 | Method to stabilize sheet between press section and dryer section of a paper-making machine |
US08/990,917 US5820733A (en) | 1996-11-18 | 1997-12-15 | Device to stabilize sheet between press section and dryer section of a paper-making machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002190563A CA2190563C (en) | 1996-11-18 | 1996-11-18 | Device and method to stabilize sheet between press section and dryer section of a paper-making machine |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2190563A1 true CA2190563A1 (en) | 1998-05-18 |
CA2190563C CA2190563C (en) | 1999-10-26 |
Family
ID=4159271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002190563A Expired - Fee Related CA2190563C (en) | 1996-11-18 | 1996-11-18 | Device and method to stabilize sheet between press section and dryer section of a paper-making machine |
Country Status (2)
Country | Link |
---|---|
US (1) | US5792318A (en) |
CA (1) | CA2190563C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6260287B1 (en) | 1997-08-08 | 2001-07-17 | Peter Walker | Wet web stability method and apparatus |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19821542C2 (en) * | 1998-05-14 | 2000-05-11 | Langbein & Engelbracht Gmbh | Blow box |
EP1605098A1 (en) * | 2000-02-26 | 2005-12-14 | Voith Paper Patent GmbH | Vacuum belt conveyor |
US6513263B2 (en) | 2000-10-06 | 2003-02-04 | Enerquin Air Inc. | Ventilator for offset pocket and method of ventilating the same |
US6725569B2 (en) | 2001-01-30 | 2004-04-27 | Enerquin Air Inc. | Device and method for ventilating an offset pocket space in a papermaking machine |
US6412192B1 (en) | 2001-01-30 | 2002-07-02 | Enerquin Air Inc. | Device and method for ventilating an offset pocket space in a papermaking machine |
FI111280B (en) * | 2001-11-08 | 2003-06-30 | Metso Paper Inc | Blow box to control web flow |
CN107254796B (en) * | 2017-08-09 | 2024-02-02 | 玖龙纸业(太仓)有限公司 | Dry net cleaning device |
Family Cites Families (42)
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---|---|---|---|---|
GB1153681A (en) * | 1965-06-03 | 1969-05-29 | John Peter Hindley | Improvements in or relating to Paper-Making Machines |
SE374150B (en) * | 1970-03-17 | 1975-02-24 | Ahlstroem Oy | |
US3764085A (en) * | 1971-08-16 | 1973-10-09 | Du Pont | Method of and apparatus for handling material |
US3753298A (en) * | 1971-12-17 | 1973-08-21 | Beloit Corp | Web dryer |
US4016032A (en) * | 1972-11-30 | 1977-04-05 | Valmet Oy | Suction roll for transferring a web away from a press section |
US3874997A (en) * | 1973-03-21 | 1975-04-01 | Valmet Oy | Multiple cylinder drier in a paper machine |
DE2556442C2 (en) * | 1975-12-15 | 1984-09-06 | Gerhardt, Hans-Joachim, Prof. M.Sc. Dipl.-Ing., 5100 Aachen | Device for the floating guidance of material webs |
FI54164C (en) * | 1977-07-08 | 1978-10-10 | Nokia Oy Ab | FOER REQUIREMENTS FOR ANIMAL READING AV EN TISSUEPAPPERSBANA FRAON PICK-UP-VAEVNADEN OCH FOER DESS OEVERFOERING TILL EN GENOMSTROEMNINGSTORK |
FI68723C (en) * | 1978-05-04 | 1985-10-10 | Valmet Oy | DYSA FOER SVAEVTORK |
US4321107A (en) * | 1978-09-05 | 1982-03-23 | Beloit Corporation | Method of suppressing paper web flutter |
US4359828A (en) * | 1979-11-05 | 1982-11-23 | Weyerhaeuser Company | Vacuum box for use in high speed papermaking |
FI62571C (en) * | 1980-12-01 | 1983-01-10 | Valmet Oy | ANORDNING VID FLERCYLINDERTORK I EN PAPPERSMASKIN |
FI65460C (en) * | 1980-12-12 | 1984-05-10 | Valmet Oy | FOER FARANDE OCH ANORDNING VID PRESS- ELLER TORKPARTIET I EN PAPERSMASKIN |
FI72159C (en) * | 1981-05-07 | 1987-04-13 | Valmet Oy | KOMPAKT PRESSPARTI I PAPPERSMASKIN. |
US4414757A (en) * | 1981-10-07 | 1983-11-15 | Overly, Incorporated | Web dryer nozzle assembly |
DE3236576C2 (en) * | 1982-10-02 | 1988-03-24 | J.M. Voith Gmbh, 7920 Heidenheim | Air guide box for the dryer section of a paper machine |
FI67107C (en) * | 1983-02-07 | 1985-01-10 | Valmet Oy | FOER FARANDE OCH ANORDNING FOER LEDANDE AV PAPPERSBANAN FRAON PRESSPARTIET TILL TORKPARTIET |
FI68278C (en) * | 1983-03-01 | 1985-08-12 | Valmet Oy | FICKVENTILATIONSANORDNING FOER EN MAONGCYLINDERTORK I EN PAPPERSMASKIN |
SE450957B (en) * | 1983-05-30 | 1987-08-17 | Flaekt Ab | SEALER AT CYLINDERTORK |
FI67901C (en) * | 1983-10-03 | 1987-07-20 | Valmet Oy | FOERFARANDE OCH ANORDNING I TORKPARTIET I EN PAPPERSMASKIN VID STYRNING AV BANANS SPETS. |
FI69332C (en) * | 1984-03-02 | 1986-01-10 | Valmet Oy | ANORDNING I TORKNINGSPARTIET AV EN PAPPERSMASKIN |
FI68279C (en) * | 1984-03-22 | 1985-08-12 | Valmet Oy | FOERFARANDE OCH ANORDNING FOER ATT HINDRA PAPPERSBANAN ATT FLADDRA I TORKNINGSPARTIET AV EN PAPPERSMASKIN |
US4551203A (en) * | 1984-04-02 | 1985-11-05 | Valmet Oy | Method and arrangement for guiding a paper web from the press section to the drying section |
FI73259C (en) * | 1985-09-13 | 1987-09-10 | Valmet Oy | Method and apparatus in the cylinder dryer of a paper machine |
FI76142C (en) * | 1985-11-14 | 1988-09-09 | Valmet Oy | FICKVENTILATIONSFOERFARANDE OCH -ANORDNING I EN PAPPERSMASKINS MAONGCYLINDERTORK. |
DE3544541C1 (en) * | 1985-12-17 | 1987-08-06 | Voith Gmbh J M | Device for transferring a paper or cardboard web from the press section to the dryer section of a paper machine or the like |
AU592978B2 (en) * | 1986-02-21 | 1990-02-01 | Beloit Corporation | Preventing sheet flutter in paper web dryers |
US4698919A (en) * | 1986-04-08 | 1987-10-13 | Beloit Corp. | Apparatus for assisting the transfer of a web to a drying section |
FI74312C (en) * | 1986-08-22 | 1988-01-11 | Valmet Oy | METHOD OCH ANORDNING FOER EN PAPPERSMASKINS VIRAPARTI. |
FI80103C (en) * | 1987-06-17 | 1990-04-10 | Valmet Paper Machinery Inc | Method and apparatus in the cylinder dryer of a paper machine, in which a double-weave pull is used |
CA1307107C (en) * | 1987-06-22 | 1992-09-08 | Pekka Eskelinen | Pocket ventilation method for the drying section of a paper machine, particularly for fast paper machines |
FI80491C (en) * | 1987-09-02 | 1990-06-11 | Valmet Paper Machinery Inc | FOERFARANDE OCH TORKNINGSGRUPP I MAONGCYLINDERTORKEN AV EN PAPPERSMASKIN. |
FI77119C (en) * | 1987-09-23 | 1989-01-10 | Valmet Paper Machinery Inc | FOERFARANDE OCH ANORDNING FOER MAETNING AV LUFTGENOMSLAEPPNINGSFOERMAOGAN HOS LUFTGENOMSLAEPPLIGA VAEVNADER I SYNNERHET EN VIRA ELLER EN FILT I EN PAPPERSMASKIN. |
DE3807856A1 (en) * | 1988-03-10 | 1989-09-21 | Voith Gmbh J M | METHOD FOR DRYING A MATERIAL RAIL AND DEVICE FOR CARRYING OUT THIS METHOD |
FI80102C (en) * | 1988-07-01 | 1990-04-10 | Tampella Oy Ab | FOERFARANDE OCH ANORDNING FOER TORKNING AV EN FIBERBANA. |
US4875976A (en) * | 1988-09-27 | 1989-10-24 | Beloit Corporation | Transfer apparatus from press section to drying section |
US4891891A (en) * | 1988-10-11 | 1990-01-09 | Beloit Corporation | Dryer section apparatus and method |
CA1316668C (en) * | 1989-09-29 | 1993-04-27 | Remi Turcotte | Pocket ventilator |
US5022166A (en) * | 1990-06-07 | 1991-06-11 | Union Camp Corporation | Flutter suppression air foils |
FI95732C (en) * | 1992-01-13 | 1996-03-11 | Valmet Paperikoneet Oy | Device in the dryer section of a paper machine |
CA2118305C (en) * | 1993-02-19 | 1997-09-23 | Pekka Eskelinen | Method and device for ensuring the run of the web in the multi-cylinder dryer of a papermachine |
CA2118307C (en) * | 1993-02-19 | 1997-03-25 | Pekka Eskelinen | Method and device for ensuring the run of the web in the multi-cylinder dryer of a papermachine |
-
1996
- 1996-11-18 CA CA002190563A patent/CA2190563C/en not_active Expired - Fee Related
-
1997
- 1997-07-20 US US08/901,556 patent/US5792318A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6260287B1 (en) | 1997-08-08 | 2001-07-17 | Peter Walker | Wet web stability method and apparatus |
Also Published As
Publication number | Publication date |
---|---|
US5792318A (en) | 1998-08-11 |
CA2190563C (en) | 1999-10-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20151118 |