ATE69840T1 - DRAINAGE PRESS WITH STEAM FEED. - Google Patents
DRAINAGE PRESS WITH STEAM FEED.Info
- Publication number
- ATE69840T1 ATE69840T1 AT88108738T AT88108738T ATE69840T1 AT E69840 T1 ATE69840 T1 AT E69840T1 AT 88108738 T AT88108738 T AT 88108738T AT 88108738 T AT88108738 T AT 88108738T AT E69840 T1 ATE69840 T1 AT E69840T1
- Authority
- AT
- Austria
- Prior art keywords
- paper web
- steam
- press nip
- flow
- steam feed
- Prior art date
Links
Classifications
-
- 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
- D21F3/0209—Wet presses with extended press nip
- D21F3/0218—Shoe presses
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/84—Paper-making machines
Landscapes
- Paper (AREA)
Abstract
The dewatering of the paper web (1) takes place by means of a flow of steam led through the paper web (1) in a press nip (2) between two pressing surfaces (3 and 4) under such pressure that at least part of the paper web (1) becomes saturated. In order to effect this flow of steam, means are introduced in the area of the press nip (2) to guide the flow of steam from the upper to the under surface of the paper web (1) running through the press nip (2) with simultaneous removal from the undersurface of the paper web. In one embodiment, the means are an upper roll (3) with a perforated jacket (5), through which the externally produced steam is led under pressure into the press nip (2), and a lower roll (4) with a perforated jacket (6), through which the steam, together with the liquid expressed from the paper web, is sucked out and removed. <IMAGE>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873728124 DE3728124A1 (en) | 1987-08-22 | 1987-08-22 | DRAINAGE PRESS WITH STEAM FEED |
EP88108738A EP0304561B1 (en) | 1987-08-22 | 1988-06-01 | Dewatering press with steam supply |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE69840T1 true ATE69840T1 (en) | 1991-12-15 |
Family
ID=6334326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT88108738T ATE69840T1 (en) | 1987-08-22 | 1988-06-01 | DRAINAGE PRESS WITH STEAM FEED. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0304561B1 (en) |
AT (1) | ATE69840T1 (en) |
DE (2) | DE3728124A1 (en) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0780512A1 (en) * | 1995-12-20 | 1997-06-25 | Franz-Ferdinand Dipl.-Kfm. Kufferath | Device for removing water from a fibrous web |
DE19627890A1 (en) * | 1996-07-11 | 1998-01-15 | Voith Sulzer Papiermasch Gmbh | Method and device for dewatering a paper web |
US6645420B1 (en) | 1999-09-30 | 2003-11-11 | Voith Sulzer Papiertechnik Patent Gmbh | Method of forming a semipermeable membrane with intercommunicating pores for a pressing apparatus |
EP1362948B1 (en) * | 1999-09-30 | 2006-08-09 | Voith Paper Patent GmbH | Process for dewatering a fibrous web |
DE19946978A1 (en) * | 1999-09-30 | 2001-04-05 | Voith Paper Patent Gmbh | Press shoe assembly for water extraction from a wet paper/cardboard web has a blanket on one side of the web and a second belt on the other side with inner gas-filled zones against the web |
DE19946984A1 (en) * | 1999-09-30 | 2001-04-05 | Voith Paper Patent Gmbh | Water extraction zone for a wet paper/cardboard web is divided into separate sections, with individual settings for the pressure gas directed at a membrane over the web to displace water from it into a lower blanket |
DE19946982A1 (en) * | 1999-09-30 | 2001-04-05 | Voith Paper Patent Gmbh | Extraction of water from a wet paper/cardboard web has a leading press assembly followed by a water extraction zone where a gas under pressure displaces water from the web |
DE19946972A1 (en) * | 1999-09-30 | 2001-04-05 | Voith Paper Patent Gmbh | Water extraction station for a wet paper/cardboard web has a pressure zone for a gas to expel the water between four rollers and a web path to give two passes through the pressure zone |
DE19946979A1 (en) * | 1999-09-30 | 2001-04-05 | Voith Paper Patent Gmbh | Assembly for the extraction of water from a wet paper/cardboard web has a support roller facing a blower box to carry the web through between a lower blanket and an upper membrane covered by a perforated belt |
DE19946973A1 (en) * | 1999-09-30 | 2001-04-05 | Voith Paper Patent Gmbh | Extraction of water from a wet paper/cardboard web uses a gas at a constant pressure to force the water out of the web at a convex support surface with a membrane to give a mechanical web compression |
DE10157693C5 (en) * | 2001-11-24 | 2012-04-26 | Voith Patent Gmbh | Apparatus and method for winding a paper or board web |
DE10304575A1 (en) * | 2003-02-05 | 2004-08-19 | Voith Paper Patent Gmbh | Press gap, to extract water from a wet web, of paper/cardboard/tissue, has compressed air channels in the counter roller mantle to form an air cushion over the web at the press roller mantle recess |
US7476293B2 (en) | 2004-10-26 | 2009-01-13 | Voith Patent Gmbh | Advanced dewatering system |
US7476294B2 (en) | 2004-10-26 | 2009-01-13 | Voith Patent Gmbh | Press section and permeable belt in a paper machine |
US7294237B2 (en) | 2004-01-30 | 2007-11-13 | Voith Paper Patent Gmbh | Press section and permeable belt in a paper machine |
CN1914372B (en) * | 2004-01-30 | 2011-03-30 | 沃依特专利有限责任公司 | Press section and permeable belt in a paper machine |
US7510631B2 (en) | 2004-10-26 | 2009-03-31 | Voith Patent Gmbh | Advanced dewatering system |
US7527709B2 (en) | 2006-03-14 | 2009-05-05 | Voith Paper Patent Gmbh | High tension permeable belt for an ATMOS system and press section of paper machine using the permeable belt |
EP1845187A3 (en) | 2006-04-14 | 2013-03-06 | Voith Patent GmbH | Twin wire former for an atmos system |
US7524403B2 (en) | 2006-04-28 | 2009-04-28 | Voith Paper Patent Gmbh | Forming fabric and/or tissue molding belt and/or molding belt for use on an ATMOS system |
US7550061B2 (en) | 2006-04-28 | 2009-06-23 | Voith Paper Patent Gmbh | Dewatering tissue press fabric for an ATMOS system and press section of a paper machine using the dewatering fabric |
CA3189386A1 (en) * | 2022-02-11 | 2023-08-11 | David Beck | Displacement dewatering a web using compressed gas |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2198387A (en) * | 1935-04-26 | 1940-04-23 | Holge Sigbjorn Paul Ebbinghaus | Paper making machine |
US2696148A (en) * | 1950-01-07 | 1954-12-07 | Beloit Iron Works | Combined fluid pressure and suction press |
US3162568A (en) * | 1961-03-23 | 1964-12-22 | James E Post | Press units for moisture removal |
SE364328B (en) * | 1969-01-27 | 1974-02-18 | Tampella Oy Ab | |
US4163688A (en) * | 1972-11-30 | 1979-08-07 | Valmet Oy | Apparatus for dewatering in a paper machine |
DE2529671C2 (en) * | 1975-07-03 | 1982-07-15 | Hans 7930 Ehingen Röscheisen | Device for heating a fibrous web |
US4272316A (en) * | 1979-05-29 | 1981-06-09 | Beloit Corporation | Steam shower |
DE3408118A1 (en) * | 1984-02-06 | 1985-08-14 | Sulzer-Escher Wyss GmbH, 7980 Ravensburg | WET PRESS FOR DRAINING A FIBER TRAIN |
-
1987
- 1987-08-22 DE DE19873728124 patent/DE3728124A1/en active Granted
-
1988
- 1988-06-01 DE DE8888108738T patent/DE3866469D1/en not_active Expired - Fee Related
- 1988-06-01 AT AT88108738T patent/ATE69840T1/en not_active IP Right Cessation
- 1988-06-01 EP EP88108738A patent/EP0304561B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE3866469D1 (en) | 1992-01-09 |
DE3728124A1 (en) | 1989-03-02 |
EP0304561B1 (en) | 1991-11-27 |
EP0304561A1 (en) | 1989-03-01 |
DE3728124C2 (en) | 1991-06-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
REN | Ceased due to non-payment of the annual fee |