EP1275773A1 - Presse à ligne de contact élargie pour la déshydratation d'une bande fibreuse - Google Patents

Presse à ligne de contact élargie pour la déshydratation d'une bande fibreuse Download PDF

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Publication number
EP1275773A1
EP1275773A1 EP02014909A EP02014909A EP1275773A1 EP 1275773 A1 EP1275773 A1 EP 1275773A1 EP 02014909 A EP02014909 A EP 02014909A EP 02014909 A EP02014909 A EP 02014909A EP 1275773 A1 EP1275773 A1 EP 1275773A1
Authority
EP
European Patent Office
Prior art keywords
press
nip
roll
long
shoe
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
Application number
EP02014909A
Other languages
German (de)
English (en)
Other versions
EP1275773B1 (fr
Inventor
Bernhard Dr. Brendel
Peter Hader
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.)
Andritz Kuesters GmbH
Original Assignee
Eduard Kuesters Maschinenfabrik GmbH and Co KG
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7691307&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1275773(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Eduard Kuesters Maschinenfabrik GmbH and Co KG filed Critical Eduard Kuesters Maschinenfabrik GmbH and Co KG
Publication of EP1275773A1 publication Critical patent/EP1275773A1/fr
Application granted granted Critical
Publication of EP1275773B1 publication Critical patent/EP1275773B1/fr
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
    • 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

Definitions

  • the invention relates to an extended-nip roller press for dewatering a Fibrous web according to the preamble of claim 1.
  • Such an extended-nip roller press is known, for example, from DE 35 03 240 C2 known, which has a driven counter roll, which is a fixed Carrier body is associated with a press shoe guided therein.
  • the press shoe can be pressed against the counter roller by means of pressure oil.
  • To the supporting body an endless press jacket is led around.
  • the press shoe forms with the corresponding mantle section of the counter roll an extended press nip, through which the fiber web to be dewatered together with the press jacket in Web running direction is guided.
  • the press shoe has an upper part, the one Has slideway along which the press jacket runs. The slideway is dependent of the desired pressure profile over the width of the press nip to the outer surface adapted to the counter roller.
  • an extended-nip roller press in which the Central axes of the support body and the counter roller in one preferably vertical press plane, so that the press shoe arranged on the support body is laterally displaceable parallel to the pressing plane.
  • the career of the roll shell is however opposite to the direction of the fibrous web from the press plane arranged offset and is therefore eccentric to the central axis of the support body, to further reduce the risk of rewetting.
  • the disadvantage here is however, that the roller centers are no longer in the stacking plane, whereby the stress and wear of the rotating components, especially the flexible roll shell is increased.
  • the object of the invention is therefore to provide an extended-nip roller press To create a type that is simple and with the high dry content values in the fibrous web can be achieved.
  • This task is characterized by the characteristics of the characteristic part of the Claim 1 solved.
  • the press shoe can be tilted relative to the carrier or the press shoe can be velvet Carrier be tilted, including the carrier around the center of the roll of the press roll is rotatable.
  • the acute angle between the stack and load level are and is preferably in the range of 1 ° to 5 °.
  • the upper part of the press shoe can also with respect to a central axis of the Press shoe in the inlet direction to be longer than in the outlet direction to to achieve an optimal pressure curve in the press nip.
  • the press shoe can according to claims 6 and / or 7 with Hydraulic load cylinders that are articulated Allow movement of the press shoe against the wearer, especially to compensate for thermal expansion.
  • FIG. 1 shows an extended-nip roller press for dewatering a fibrous web, especially a paper web, which will be part of a paper making machine can.
  • the extended-nip roller press comprises an extended-nip press roll 1 and one driven counter roll 2, which cooperate in a press nip 3.
  • the Long nip press roll 1 and the counter roll 2 lay with their A stack plane S is fixed in the center of the rollers.
  • the stacking level S runs here vertical.
  • the long nip press roll 1 and the counter roll 2 can alternatively also be arranged so that the stacking plane S is inclined or horizontal.
  • the press nip 3 is at least one felt web 4 and the one to be pressed Fibrous web 5 out.
  • the long nip press roll 1 comprises a fixed support 6 and one around the carrier 6 rotatable roller shell 7, which is made of a flexible material, for. B. Rubber or plastic.
  • the roll shell 7 is tubular formed and with its ends on the rotatably seated on the carrier 6 cover (not shown) attached to a closed long nip press roll 1 to form.
  • An intermediate space 8 between the carrier 6 and the roller jacket 7 can Compressed air are supplied, whereby the roll shell 7 are inflated can to get a cylindrical shape.
  • This cylindrical shape is because of the roll jacket transport for the start of work of the extended-nip press roll 1 required.
  • the cylindrical shape prevents fluttering during operation Roll shell.
  • the axis of rotation of the roll shell coincides with that The centers of rotation of the roller shell bearings on both sides.
  • a press shoe 10 is provided on the carrier 6 and has an upper part 11, on which a sliding surface 9 is formed, on which the roller shell 7 in Supported area of the press nip 3.
  • the sliding surface 9 is in cross section preferably convex on the edge and predominantly concave in the supporting area educated.
  • the press shoe 10 is in the direction of the counter roll by means of pressure oil 2 can be pressed.
  • the press shoe 10 forms with the corresponding jacket section the counter-roller 2 the extended press nip 3 through which the at least one Felt web 4 and the fibrous web to be dewatered together with the Roll jacket 7 is guided in the direction of web travel.
  • the Sliding surface 9 defines an inlet and an outlet.
  • the outlet direction is in Fig. 1 indicated by the arrow in the driven counter roll 2.
  • the Press nip 3 becomes hydrodynamic and / or hydrostatic in a known manner lubricated.
  • the press shoe 10 comprises a support bar on which the upper part 11 is fastened, that carries the sliding surface 9.
  • the support bar consists of a plurality spaced apart mutually arranged, piston-like parts containing support arrangements 12, which are each supported on the carrier 6.
  • the support arrangements 12 are in Movable towards the counter roller 2, due to a pressurization a pressure chamber 13 which is connected to a hydraulic pressure medium, e.g. Oil or water connected.
  • the pressure medium lines are connected in a known manner Wise.
  • the press shoe 10 then defines a load level L, which is of the geometric Center line of the support assemblies 12 is formed.
  • the arrangement of the press shoe 10 relative to the stacking level S is such that the load level L of the Press shoe 10, the stacking level S in the center of the counter roll 2 and cuts at an acute angle to the outlet direction and the press shoe 10 radially is displaceable along this load plane aligned in this way to the stack plane S.
  • the arrangement of the press shoe 10 can be such that the load level L rotated at an angle in the range of 1 ° to 5 ° with respect to the stacking plane S. is.
  • the Press shoe 10 To align the press shoe 10 with respect to the stacking plane S is the Press shoe 10 according to FIG. 1 arranged tilted on the carrier 6.
  • the top 11 is preferably designed such that this in relation to the load plane L in Inlet direction is longer than in the outlet direction.
  • the formation of the support assemblies 12 as a hydraulic load cylinder can be like described for example in DE-AS 27 59 035, because of the different thermal expansions between the support strip and the carrier 6 and resulting differences in length due to a deflection of the beam 6 is preferred to use retained tubular piston parts 14 which their two ends are sealing and articulated, in recesses one Upper part connection 15 and a carrier connection 16, each Form cylinder sections.
  • the tubular piston parts 14 allow that Upper part 11 can incline towards the carrier 6.
  • the second embodiment shown in Fig. 2 differs from that Embodiment shown in Fig. 1 characterized in that the carrier 6 together Press shoe 10 is tilted so that the press shoe 10 along the stacking level S in the center of the counter roll 2 and at an acute angle to the outlet direction intersecting load plane L is radially displaceable.
  • the carrier 10 is for this preferably in a chair, not shown, around the center of the Long nip press roll turned.
  • the press shoe 10 is then aligned in parallel arranged to the carrier 6 on this. Otherwise the above apply 1 corresponding to the explanations.
  • FIG. 3 shows a third exemplary embodiment, which differs from that in FIG. 1 illustrated first embodiment differs in that the Long nip press roll 1 is arranged on the head side of the counter roll 2, whereby an overhead press shoe 10 results. Otherwise, the explanations apply Fig. 1 accordingly.
  • Fig. 3 shows that for a hydrodynamic Lubrication of the press nip 3, an oil supply 17 at the inlet of the press nip 3 is provided.
  • a scraper 18 that is on the inside of the Roll jacket 7 applied lubricant behind the press nip 3 again abrakelbar.
  • the scraper 18 is preferably in an upper region of the Long nip press roll 1 arranged to use the gravity to let scraped lubricant flow into a collecting container 19, from where it can be derived via at least one line 20.

Landscapes

  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)
EP02014909A 2001-07-11 2002-07-05 Presse à ligne de contact élargie pour la déshydratation d'une bande fibreuse Expired - Lifetime EP1275773B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10133531 2001-07-11
DE10133531A DE10133531A1 (de) 2001-07-11 2001-07-11 Langspalt-Walzenpresse zum Entwässern einer Faserstoffbahn

Publications (2)

Publication Number Publication Date
EP1275773A1 true EP1275773A1 (fr) 2003-01-15
EP1275773B1 EP1275773B1 (fr) 2005-09-21

Family

ID=7691307

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02014909A Expired - Lifetime EP1275773B1 (fr) 2001-07-11 2002-07-05 Presse à ligne de contact élargie pour la déshydratation d'une bande fibreuse

Country Status (6)

Country Link
US (1) US6899023B2 (fr)
EP (1) EP1275773B1 (fr)
JP (1) JP2003049379A (fr)
AT (1) ATE305063T1 (fr)
CA (1) CA2392926A1 (fr)
DE (2) DE10133531A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1559831A1 (fr) * 2004-01-29 2005-08-03 Voith Paper Patent GmbH Calandre à pince allongée

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI118088B (fi) * 2004-02-19 2007-06-29 Vaahto Oy Kenkäpuristimen kuormituslaite
CN106626474A (zh) * 2017-02-17 2017-05-10 陈家荣 一种棉芯转移压实机构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3708189A1 (de) * 1987-03-13 1988-09-22 Voith Gmbh J M Langspalt-walzenpresse
EP0745725A2 (fr) * 1995-06-03 1996-12-04 Voith Sulzer Papiermaschinen GmbH Presse à rouleaux
EP0823508A2 (fr) * 1996-08-05 1998-02-11 Voith Sulzer Papiermaschinen GmbH Dispositif de pressage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT360831B (de) 1977-12-20 1981-02-10 Escher Wyss Ag Hydraulisches stuetzelement
DE3503240A1 (de) * 1985-01-31 1986-08-07 J.M. Voith Gmbh, 7920 Heidenheim Nasspresse zum entwaessern einer faserbahn
DE3715153A1 (de) * 1987-05-07 1988-12-01 Voith Gmbh J M Verstaerkter pressmantel fuer eine presseinrichtung zur behandlung bahnfoermigen gutes, wie z. b. von papierbahnen, sowie verfahren und vorrichtung zu seiner herstellung
DE19622018A1 (de) * 1996-05-31 1997-12-04 Voith Sulzer Papiermasch Gmbh Schuhpresse
DE19714939A1 (de) * 1997-04-10 1998-10-15 Voith Sulzer Papiermasch Gmbh Schuhpreßeinheit
JP2000119985A (ja) * 1998-10-12 2000-04-25 Ishikawajima Harima Heavy Ind Co Ltd 抄紙機のシュープレス装置
DE19920443A1 (de) * 1999-05-04 2000-11-09 Abb Research Ltd Anordnung zur Strombegrenzung mit einem supraleitenden Transformator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3708189A1 (de) * 1987-03-13 1988-09-22 Voith Gmbh J M Langspalt-walzenpresse
EP0745725A2 (fr) * 1995-06-03 1996-12-04 Voith Sulzer Papiermaschinen GmbH Presse à rouleaux
EP0823508A2 (fr) * 1996-08-05 1998-02-11 Voith Sulzer Papiermaschinen GmbH Dispositif de pressage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1559831A1 (fr) * 2004-01-29 2005-08-03 Voith Paper Patent GmbH Calandre à pince allongée

Also Published As

Publication number Publication date
ATE305063T1 (de) 2005-10-15
US6899023B2 (en) 2005-05-31
CA2392926A1 (fr) 2003-01-11
DE10133531A1 (de) 2003-01-30
JP2003049379A (ja) 2003-02-21
US20030024405A1 (en) 2003-02-06
EP1275773B1 (fr) 2005-09-21
DE50204306D1 (de) 2005-10-27

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