EP3540120A1 - Partie de presse - Google Patents
Partie de presse Download PDFInfo
- Publication number
- EP3540120A1 EP3540120A1 EP18209366.6A EP18209366A EP3540120A1 EP 3540120 A1 EP3540120 A1 EP 3540120A1 EP 18209366 A EP18209366 A EP 18209366A EP 3540120 A1 EP3540120 A1 EP 3540120A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- press
- press section
- section according
- uprights
- drive
- 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
- 238000010276 construction Methods 0.000 claims abstract description 6
- 125000006850 spacer group Chemical group 0.000 claims description 14
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 239000000969 carrier Substances 0.000 claims 1
- 238000001035 drying Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
Images
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
-
- 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
- D21F3/04—Arrangements thereof
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/001—Wire-changing arrangements
Definitions
- the invention relates to a press section for dewatering a paper, cardboard or other fibrous web with at least two press nips formed between three press rollers, through which the fibrous web is performed together with at least one endless circulating belt and a stench for storage of these press rolls, the is formed by a respective longitudinally extending on the drive side and the driver's side support structure, each comprising at least one in the web running direction before and one arranged after these press rollers stand, said stands are connected via at least one, extending between drive and driver side cross member ,
- a paper machine comprises as essential assemblies a headbox, a wire section on which the web is formed, a downstream press section and an adjoining dryer section with a roll apparatus.
- the press section has a plurality of rollers, which are arranged in different configurations relative to each other and form one or more press nips with each other.
- An essential part of the press section are tapes, in particular felt tapes, which, together with the still wet paper web, are passed through the press nips and absorb water there. The water stored in the felt is released again elsewhere.
- the press section has a stiffening. This includes a support structure on the drive side as well as on the driver's side. The rollers mentioned are stored in the supporting structures.
- the tapes are exposed to a high degree of wear. They must therefore be frequently replaced. The removal of the worn tape is this problem, since this can be severed.
- connection of the band ends in open bands can be done after insertion into the press section via a transverse seam.
- a spacer In order to mount it on a plurality of rollers, at least part of one of the two supporting structures, a so-called spacer, must be taken out of this supporting structure, so that the rollers in the other supporting structure are temporarily cantilevered - so-called cantilever principle. After mounting the tape, the spacer is re-inserted into the relevant support structure, so that the machine can be put into operation again with new tape.
- the object of the invention is to provide a stable stasis of a press section with the least possible effort.
- this object is achieved in that extends between the two, before and after these press rolls arranged stands on the drive and driver side in each case a longitudinal member which is supported on these uprights and is not connected to any cross member.
- the storage of these press rolls takes place exclusively on or at the two relatively simply constructed, vertical uprights, although - especially with more than three press rollers - also more stands can be present.
- the connection of the uprights of the driver and drive sides via the crossmembers ensures a very stable and compact construction.
- the stability of the respective stator construction can be further increased without these are connected to each other via a separate cross member.
- guide rollers for guiding the belts can be stored between the two side rails.
- the middle of the three press rolls is wrapped by any band. Furthermore, the dewatering performance of the press section can be further increased if the first of the three press rolls in the web running direction forms a preceding press nip with a fourth press roll.
- At least one cross member should carry a catwalk running between the driver's and driver's sides.
- the band ends of the bands are connectable via a transverse seam, then the introduction of the same in the press section is relatively simple.
- the support structure must have no spacers, which has a positive effect on the construction and stability.
- the two stands are firmly connected to the respective side member.
- the bands are in an endless shape, they must be pre-draped before they move in.
- the cross members are used as Cantilevermik.
- the support structure on at least one side of the machine on several removable spacers, which are present only between elements of the stand and between stand and side members with advantage.
- the side member of the corresponding machine side can be solved at one end of the respective stand and so the necessary space for the insertion of the strip between the side rail and stand be created.
- the stable position of the longitudinal member is also given without cross member via the connection with the stator at the other end of the longitudinal member.
- the increased stability reduces the risk of self-oscillation of the stool. This has a positive effect on the operation of the paper machine and on the quality properties of the paper web.
- FIGS. 1 and 2 a schematic side view of a press section for dewatering a fibrous web 1 in the form of a paper web with different stature.
- the press section is preceded by a wire section for sheet formation and a drying section is connected downstream for drying.
- the press section has four press rolls 2, 3, 4, 5, which in each case form a total of three press nips in pairs, through which the fibrous web 1 is guided in the form of a press felt together with at least one water-absorbing, endlessly circulating band 6, 7, 8. Outside the press nip, the belts 6, 7, 8 are deflected by guide rollers 17.
- a first belt 7 running over the fibrous web 1 takes over the fibrous web 1 from a forming fabric 20 of the upstream former and guides it with a lower belt 6 through the first press nip between the press rolls 2, 3. Thereafter, the fibrous web 1 wraps together with the upper belt 7, the upper press roll 3 of the first press nip to the second press nip between the press rolls 3 and 4. After the second press nip, the fibrous web 1 wraps around the upper press belt 4 of this press nip, which is not looped by any band, up to the third one Pressing gap through which then an upper belt 8 is passed next to the fibrous web 1.
- the fibrous web 1 wraps around the lower press roll 4 of the third press nip until it is passed to a dryer wire 21 of the following dryer section alone.
- the fibrous web 1 is supported by a respective drying wire 21, guided meandering alternately over guide rolls and heated drying cylinders 22.
- the stent for supporting the press rolls 2, 3, 4, 5 is formed by a support structure extending in the longitudinal direction on the drive side and the leader side of the paper machine.
- This supporting structure comprises in each case one in the web running direction 9 before and one after the press rollers 2,3,4,5 arranged, vertical stand 10,11.
- To stabilize the first stand 10 of both sides of the machine in the web running direction 9 are connected via two and the following stand 11 only via a, between the engine and driver side extending cross member 13,14,15.
- one of the two crossbeams 13, 14 of the first upright 10 carries a catwalk 18 extending between the driver's and drive sides, which improves the accessibility of the press section to the operating and service personnel.
- first 10 and last stand 11 are each connected to each other by means of one, between and extending over this longitudinal member 16.
- This longitudinal member 16 is based on these stands 10,11 and can increase the stability of the stiffening without cross member 13,14,15.
- some of the guide rollers 17 of the two upper belts 7, 8 are mounted on this longitudinal carrier 16.
- the supporting structure of the stiffening of each machine side is made in one piece. Even if the supporting structures in this case of several parts, especially the uprights 10,11,12, the longitudinal 16 and the cross members 13,14,15 is constructed, these parts are so rigidly connected to each other (for example, by screwing) that the relevant Support structure has the same stiffness as if it consisted of a single part.
- All of the bands shown 6,7,8 of the press section are at FIG. 2 provided with a cross seam. This means that the single band 6,7,8 can be wrapped around the respective group of press rolls 2, 3, 4, 5 and guide rolls 17 with completely closed stiffening without any spacers. Then, the two ends are joined together and connected by a seam.
- FIG. 1 interrupted by a plurality of spacers 19. These spacers 19 are present between parts of the first 10 and the last stator 11 and between these uprights 10,11 and the longitudinal member 16.
- the cross members 13,14,15 are used here as Cantilevermik.
- the Cantilever simply be fixed on the drive side via tie rods and wear after removing the spacers 19 on the driver's side in each case a part of the frame, in particular a stand 10,11. If the spacer 19 is removed between the longitudinal member 16 and a stand 10, 11, the longitudinal member 16 remains stably fixed via the connection with the other upright 11, 10.
- the corresponding endless belt 6, 7, 8 can be introduced through the clearance thus created on the driver's side and wrapped around the respective press roller 2, 3, 4, 5.
Landscapes
- Paper (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018106122.6A DE102018106122A1 (de) | 2018-03-16 | 2018-03-16 | Pressenpartie |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3540120A1 true EP3540120A1 (fr) | 2019-09-18 |
EP3540120B1 EP3540120B1 (fr) | 2020-10-28 |
Family
ID=64564599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18209366.6A Active EP3540120B1 (fr) | 2018-03-16 | 2018-11-30 | Partie de presse |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3540120B1 (fr) |
CN (1) | CN110273317B (fr) |
DE (1) | DE102018106122A1 (fr) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3541943A1 (de) * | 1984-11-29 | 1986-06-05 | Valmet Oy, Helsinki | Verfahren in einer papiermaschinenpressenpartie zum wechseln von tuechern und/oder walzen sowie eine das verfahren anwendende staenderkonstruktion der pressenpartie |
EP1637648A1 (fr) * | 2004-09-21 | 2006-03-22 | Voith Paper Patent GmbH | Section de presse d'une machine de fabrication d'une bande de papier ou de carton |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI118858B (fi) * | 2005-09-30 | 2008-04-15 | Metso Paper Inc | Järjestelmä paperikoneen osan värähtelyiden vaimentamiseksi ja estämiseksi |
DE102006028419A1 (de) * | 2006-06-21 | 2007-12-27 | Voith Patent Gmbh | Maschinenstuhlung |
DE102006028417A1 (de) * | 2006-06-21 | 2007-12-27 | Voith Patent Gmbh | Maschinenstuhlung |
DE102008000151A1 (de) * | 2008-01-25 | 2009-07-30 | Voith Patent Gmbh | Vorrichtung zur Herstellung und/oder Behandlung einer Faserstoffbahn |
CN201390918Y (zh) * | 2009-04-03 | 2010-01-27 | 潍坊凯信机械有限公司 | 浆板机用夹网成型器 |
CN205242168U (zh) * | 2015-12-21 | 2016-05-18 | 汕头市龙湖区粤安纸业有限公司 | 一种造纸机网部转移压榨装置 |
DE102016201338A1 (de) * | 2016-01-29 | 2017-08-03 | Voith Patent Gmbh | Presse |
FI127017B (fi) * | 2016-03-22 | 2017-09-29 | Valmet Technologies Oy | Liikutusrunkorakenne kuiturainakoneen puristimen vastatelaa varten |
-
2018
- 2018-03-16 DE DE102018106122.6A patent/DE102018106122A1/de active Pending
- 2018-11-30 EP EP18209366.6A patent/EP3540120B1/fr active Active
-
2019
- 2019-01-04 CN CN201910007956.7A patent/CN110273317B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3541943A1 (de) * | 1984-11-29 | 1986-06-05 | Valmet Oy, Helsinki | Verfahren in einer papiermaschinenpressenpartie zum wechseln von tuechern und/oder walzen sowie eine das verfahren anwendende staenderkonstruktion der pressenpartie |
EP1637648A1 (fr) * | 2004-09-21 | 2006-03-22 | Voith Paper Patent GmbH | Section de presse d'une machine de fabrication d'une bande de papier ou de carton |
Also Published As
Publication number | Publication date |
---|---|
CN110273317B (zh) | 2023-02-17 |
EP3540120B1 (fr) | 2020-10-28 |
CN110273317A (zh) | 2019-09-24 |
DE102018106122A1 (de) | 2019-09-19 |
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