EP2633118A1 - Saugwalze zur entwässerung einer faserstoffbahn - Google Patents
Saugwalze zur entwässerung einer faserstoffbahnInfo
- Publication number
- EP2633118A1 EP2633118A1 EP11788326.4A EP11788326A EP2633118A1 EP 2633118 A1 EP2633118 A1 EP 2633118A1 EP 11788326 A EP11788326 A EP 11788326A EP 2633118 A1 EP2633118 A1 EP 2633118A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- suction
- roll
- channel
- suction roll
- stauleisten
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/20—Rollers
-
- 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
- D21F3/10—Suction rolls, e.g. couch rolls
Definitions
- the subject of this invention is a suction roll for dewatering a fibrous web with a rotatable and perforated Saugwalzenmantel and a suction box.
- the suction box is inside the suction roll
- a vacuum source such that it applies to a limited by seals inner surface of the suction roll shell a negative pressure, so that a defined surface area of the suction roll is sucked.
- FIG. 1 A conventional suction roll is shown in FIG. In the case of this suction roll, there is a risk that the filtrate can not be completely sucked off at a higher speed range and that the roll therefore tends to "splash.” The reason for this lies in the non-optimized suction channel.
- FIG. 1 Another prior art suction roll is shown in FIG.
- the filtrate is removed by means of a siphon from the roller, this leads to an improvement in Filtratabsaugung, but here is another vacuum connection for the siphon necessary.
- the invention is therefore based on the object to optimize a suction roll such that the filtrate can be reliably removed from the suction roll. This task is solved by a suction roller with an optimized
- the suction box has a first and a second
- the first suction channel extends in the interior of the roller in
- Substantially along the Saugwalzenachse and the second suction channel extends in the roll interior along the inner surface of the Saugwalzenmantels.
- the second suction channel is characterized by seals on the inside of the
- Suction roll jacket abut, sealed.
- the first and second suction channels are connected to one another via at least one connecting channel connected.
- This connecting channel preferably runs in the radial direction (relative to the roll geometry).
- suction box according to the invention can be achieved that the evacuated inner volume of the suction roll compared to conventional suction boxes can be significantly reduced. Due to the lower volume, in particular in the second suction channel high
- Air velocities through which the sucked filtrate is reliably entrained Air velocities through which the sucked filtrate is reliably entrained.
- stacks are arranged in the interior of the second suction channel, which extend in the machine direction (C).
- the task of this Stauraun is to prevent a cross flow to the direction inside the suction zone of the second suction channel.
- Stauren a non-evacuated area can be avoided within the suction zone. Furthermore, this also ensures that the holes in the Saugwalzenmantel can not be laid by fabric, as they are always rinsed with filtrate.
- the Stauringn preferably have some play to Saugwalzenmantel, d. H. they do not seal against the suction roll shell.
- the game of Saugleisten to Saugwalzenmantel can also be adjustable via a positioning.
- the Stauraun extend from the second suction channel into the connecting channel, which connects the second suction channel with the first suction channel.
- the flow guidance is further improved. It is also conceivable that in the roll interior of the suction roll another
- Suction channel is arranged, through which a further defined surface area of the suction roll is sucked.
- This suction zone can, for example, for
- Staurauchtn a fabric used.
- Stauraun a fabric used.
- Stauraun can be arranged in the further suction.
- the at least one connecting channel opens above a collecting region of the first suction channel into the first suction channel, so that suctioned water can accumulate in the collecting region and does not flow off again through the connecting channel.
- Fig. 1 is a schematic cross section of a suction roll according to the prior art
- Fig. 2 shows another suction roll according to the prior art
- Fig. 3 is a schematic cross section through the inventive
- FIG. 4 shows the suction roll according to FIG. 3 with corresponding barriers
- Fig. 5 is a somewhat more detailed representation of the suction roll of FIG. 4;
- Fig. 6 is a schematic longitudinal section through the inventive
- FIG. 1 shows a cross section through a conventional suction roll 20 with a perforated suction roll jacket 21 according to the prior art with a non-optimized suction box 26.
- the suction box 26 includes a first suction channel 22 and a second suction channel 23, each through the sealing strips 24 and Be sealed 25 to Saugwalzenmantel 21 out.
- Suction channel 22 are sucked one or two press nips. Through the second suction channel-23-a Nachsaugzone (fabric drying zone) -absaugt. Between the two suction zones is a ventilation zone 28 for vacuum breaking.
- the direction of rotation or the machine direction is indicated by an arrow and the reference C.
- FIG. 2 shows a further suction roll 20 according to the prior art, in which case the filtrate within the suction roll 20 is removed by means of a siphon 27 or several siphons 27.
- FIG. 3 an embodiment of the suction roller 12 according to the invention is shown.
- the suction roll 12 has a rotatable perforated roll shell 1 and a suction box 7 in the roll interior 14.
- the suction box 7 consists of a first suction channel 3 and a second suction channel 4, the two suction channels 3, 4 are connected to one another via one or more connecting channels 9.
- the first suction channel 3 extends substantially in the region of the suction roll axis and is connected to a vacuum source.
- the second suction channel 4 extends along the inner surface 13 of the
- the second suction channel 4 is sealed by the sealing strips 2, which rest directly on the Saugwalzenmantel 1, with respect to the atmosphere.
- the connecting channel 9 opens above a collecting region 15 of the first suction channel 3 in the first suction channel 3. This can be extracted water (filtrate) in the
- Collection area 15 accumulate and be discharged and thus does not flow through the connection channel 9 back into the second suction channel. 4
- the suction box 7 shown in this embodiment comprises
- a ventilation zone 5 is provided for vacuum-breaking In this example, two press nips A and B are sucked through the second suction channel 4, the corresponding counter-rollers are not shown.
- FIG. 4 shows the suction roll 12 according to FIG. 3 with corresponding stacking strips 0, 11.
- the stacking strips 10, 11 run parallel to the machine running direction C.
- This arrangement is intended to avoid a non-evacuated region in the suction roll shell 1 within the suction zone. Furthermore, this also ensures that the holes in the suction roll shell 1 can not be laid by fabric (pulp), since they are always rinsed with filtrate.
- the task of this Stauancen 0 or 1 is to prevent a cross flow to the direction C inside the second suction channel 4.
- the Stauarchn 10 and 11 preferably have to Saugwalzenmantel 1 a game, d. that is, they do not seal against the suction roll shell 1.
- the invention also includes embodiments in which only 4 stacks 10 are arranged in the second suction channel.
- FIG. 5 shows a somewhat more detailed illustration of the suction roll 12 according to FIG. 4.
- the guide rollers 6 facilitate the removal of the suction box 7 for maintenance purposes.
- Fig. 6 is a schematic longitudinal section through the inventive
- Suction roll 12 is shown. In addition to the Stauringn 10 also recognizes the sealing strips 2a, the suction zone of the second suction channel 4 in
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Paper (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA1783/2010A AT510620B1 (de) | 2010-10-27 | 2010-10-27 | Saugwalze zur entwässerung einer faserstoffbahn |
| PCT/AT2011/000424 WO2012054943A1 (de) | 2010-10-27 | 2011-10-13 | Saugwalze zur entwässerung einer faserstoffbahn |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2633118A1 true EP2633118A1 (de) | 2013-09-04 |
| EP2633118B1 EP2633118B1 (de) | 2015-01-21 |
Family
ID=45047485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11788326.4A Not-in-force EP2633118B1 (de) | 2010-10-27 | 2011-10-13 | Saugwalze zur entwässerung einer faserstoffbahn |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US8778142B2 (de) |
| EP (1) | EP2633118B1 (de) |
| JP (1) | JP5886860B2 (de) |
| CN (1) | CN103180507B (de) |
| AT (1) | AT510620B1 (de) |
| BR (1) | BR112013009904A2 (de) |
| CA (1) | CA2815866C (de) |
| ES (1) | ES2535275T3 (de) |
| PT (1) | PT2633118E (de) |
| WO (1) | WO2012054943A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201213350D0 (en) * | 2012-07-26 | 2012-09-12 | Woollard & Henry | Improvements in or relating to paper forming apparatus |
| JP6353085B2 (ja) * | 2015-01-29 | 2018-07-04 | 山田 菊夫 | パルプ積繊シート、及びパルプ積繊シートの製造方法 |
| CA3081992A1 (en) * | 2019-06-06 | 2020-12-06 | Structured I, Llc | Papermaking machine that utilizes only a structured fabric in the forming of paper |
| EP4655451A1 (de) * | 2023-01-27 | 2025-12-03 | Stowe Woodward Licensco, LLC | Dichtungsstreifenverschleissüberwachungssysteme und anordnungen dafür |
| FI131918B1 (fi) * | 2023-10-27 | 2026-02-17 | Valmet Technologies Oy | Kuiturainakoneen imutela ja yhdistelmäpuristin |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2204780A (en) * | 1936-11-06 | 1940-06-18 | American Voith Contact Co Inc | Suction roll for papermaking machines |
| US2338777A (en) * | 1938-01-07 | 1944-01-11 | Millspaugh William Hulse | Suction roll |
| US2714342A (en) * | 1950-11-02 | 1955-08-02 | Beloit Iron Works | Suction roll |
| DE1046469B (de) * | 1954-02-06 | 1958-12-11 | Millspaugh Ltd | Saugwalze fuer Papiermaschinen |
| US2772606A (en) * | 1955-07-29 | 1956-12-04 | Joseph J Kelly | Combination suction roll and silencing and cleaning means |
| US3018825A (en) * | 1958-07-24 | 1962-01-30 | Beloit Iron Works | Drainage control mechanism |
| JPH0322099U (de) * | 1989-07-14 | 1991-03-06 | ||
| US5034100A (en) * | 1990-11-28 | 1991-07-23 | Wilbanks International | Stationary drainage device with pressure roll |
| DE4103040A1 (de) * | 1991-02-01 | 1992-08-06 | Freiberg Papier Maschwerke | Vorrichtung zur entwaesserung von faserstoffbahnen |
| FI98079C (fi) * | 1995-07-07 | 1997-04-10 | Martti Wilhelm Somervuori | Paperikoneen imutelan imulaatikko |
| DE29701986U1 (de) * | 1997-02-05 | 1997-03-27 | Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim | Saugeinrichtung |
| FI111861B (fi) * | 1997-12-10 | 2003-09-30 | Metso Paper Inc | Paperi- tai kartonkikoneen tela |
| FI106640B (fi) * | 1997-12-15 | 2001-03-15 | Valmet Corp | Sellun kuivatuskoneen puristimen imutelajärjestely sekä vastaava menetelmä |
| FI103593B1 (fi) * | 1998-04-02 | 1999-07-30 | Valmet Corp | Imutelan imulaatikon tiivistysrakenne |
| US6592721B1 (en) * | 1999-05-12 | 2003-07-15 | International Paper Company | Apparatus for dewatering a suction papermaking roll |
| AT408461B (de) * | 1999-11-17 | 2001-12-27 | Andritz Ag Maschf | Vorrichtung zur entwässerung einer faserstoffbahn |
| FI111091B (fi) * | 2002-07-12 | 2003-05-30 | Metso Paper Inc | Imutela |
| DE102004056176A1 (de) * | 2004-11-20 | 2006-05-24 | Voith Paper Patent Gmbh | Kühlwalze |
| AT511975B1 (de) * | 2011-10-12 | 2015-06-15 | Andritz Ag Maschf | Transfersaugwalze zum überführen einer materialbahn |
-
2010
- 2010-10-27 AT ATA1783/2010A patent/AT510620B1/de not_active IP Right Cessation
-
2011
- 2011-10-13 PT PT117883264T patent/PT2633118E/pt unknown
- 2011-10-13 CA CA2815866A patent/CA2815866C/en not_active Expired - Fee Related
- 2011-10-13 EP EP11788326.4A patent/EP2633118B1/de not_active Not-in-force
- 2011-10-13 WO PCT/AT2011/000424 patent/WO2012054943A1/de not_active Ceased
- 2011-10-13 ES ES11788326.4T patent/ES2535275T3/es active Active
- 2011-10-13 JP JP2013535201A patent/JP5886860B2/ja not_active Expired - Fee Related
- 2011-10-13 US US13/879,270 patent/US8778142B2/en not_active Expired - Fee Related
- 2011-10-13 BR BR112013009904-6A patent/BR112013009904A2/pt not_active Application Discontinuation
- 2011-10-13 CN CN201180051121.3A patent/CN103180507B/zh not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012054943A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| AT510620A1 (de) | 2012-05-15 |
| BR112013009904A2 (pt) | 2020-05-26 |
| JP5886860B2 (ja) | 2016-03-16 |
| WO2012054943A1 (de) | 2012-05-03 |
| CA2815866A1 (en) | 2012-05-03 |
| PT2633118E (pt) | 2015-05-18 |
| EP2633118B1 (de) | 2015-01-21 |
| CN103180507A (zh) | 2013-06-26 |
| ES2535275T3 (es) | 2015-05-07 |
| AT510620B1 (de) | 2012-08-15 |
| JP2013540911A (ja) | 2013-11-07 |
| US8778142B2 (en) | 2014-07-15 |
| CA2815866C (en) | 2018-08-28 |
| US20130213879A1 (en) | 2013-08-22 |
| CN103180507B (zh) | 2015-03-18 |
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