EP1754821B1 - Pressanordnung - Google Patents

Pressanordnung Download PDF

Info

Publication number
EP1754821B1
EP1754821B1 EP06114397A EP06114397A EP1754821B1 EP 1754821 B1 EP1754821 B1 EP 1754821B1 EP 06114397 A EP06114397 A EP 06114397A EP 06114397 A EP06114397 A EP 06114397A EP 1754821 B1 EP1754821 B1 EP 1754821B1
Authority
EP
European Patent Office
Prior art keywords
axial direction
roll
support parts
press
arrangement according
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.)
Not-in-force
Application number
EP06114397A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1754821A1 (de
Inventor
Frank Schmidt
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
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
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Priority to PL06114397T priority Critical patent/PL1754821T3/pl
Publication of EP1754821A1 publication Critical patent/EP1754821A1/de
Application granted granted Critical
Publication of EP1754821B1 publication Critical patent/EP1754821B1/de
Not-in-force legal-status Critical Current
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
    • 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

Definitions

  • the invention relates to a pressing arrangement for dewatering or smoothing a paper, cardboard, tissue or other fibrous web in a machine for producing and / or finishing the same with at least one, formed by a pressing and a counter-roller press nip, whose axes at least a roll end are mounted in separate support parts, wherein the press roll has a rotating roll shell which is pressed by a contact element to the counter roll and the opposite support parts of at least one roll end via one or more tension rods are detachably connected to each other, the tension rods in the axial direction pliable, in axial Direction can be used in the support parts, and have a thickening at both ends.
  • fasteners are for example from the DE 4 217 560 A1 known and take up skewing due to rolling deflections and thermal changes in length by elastic deformation.
  • the assembly or disassembly is particularly difficult due to the limited accessibility.
  • the object of the invention is therefore to form the flexibility in the axial direction much stronger than perpendicular thereto and also to allow the inclusion of high tensile forces.
  • the object has been achieved in that the respective tie rod between the thickening transverse to the press plane is at least 3 times wider than in the axial direction.
  • the release of the connection is particularly necessary when changing the roll and the change of the roll shell and bands of the press arrangement.
  • the tie rods should have a thickening at both ends.
  • At least the thickenings should rest in recesses of the support parts.
  • the thickenings themselves can advantageously be designed hammerhead-shaped.
  • the tension rods can absorb sufficiently large forces, the thickening should each be supported on a support surface of the support parts.
  • the width of the support surface in the axial direction should be at least 50, preferably at least 100% greater than the axial extent of the tension rod between the thickenings.
  • a spreader element can be used, which expands the distance between the support parts to a predetermined extent by the tension rods, thus tensioning and stabilizing the connection.
  • the clamping can also take place via a load of the contact pressure element.
  • the pressing element presses the roll shell to the counter roll, the distance between the support parts is also increased.
  • the press arrangement has a press nip for dewatering or smoothing a fibrous web, in particular a paper web in a paper machine, which is formed by an upper press roll 1 and a lower counter roll 5.
  • the axes are 7.8 of the rollers 1.5 stored in separate support parts 2.4. While the axis 8 of the counter-roller 5 co-rotates with this, the axis 7 of the press roller 1 is fixed.
  • axis 7 and bearing and support part 2 of the press roll 1 can be made smaller than in the counter roll 5.
  • the counter-roller 5 is carried out deflection controlled.
  • the axis 8 of the backing roll 5 is also stationary, while the roll shell is acted upon by a pressing member.
  • the press roll 1 has a rotating roll shell 10, which is pressed by a stationary on the axis 7, stationary contact pressure element 9 to the counter roll 5.
  • the pressing element 9 While in the case of dimensionally stable roll shells 10, the pressing element 9, as shown, has a convex pressing surface, this may be concave with flexible roll shell 10 to form an extended press nip.
  • Prolonged press gaps allow an intensive yet volume-saving treatment of the fibrous web due to the longer residence time.
  • the support members 2,4 are here on both sides of the press plane 14 of the rollers 1.5 extending tie rods 3 releasably connected together.
  • tension rods 3 are bendable in the axial direction. This allows compensation of roll deflections and thermal elongation changes.
  • the tension rods 3 are inserted axially into the support parts 2.4. This takes place with the contact element 9 relaxed.
  • connection is released by releasing the contact pressure element 9. Subsequently, the tension rods 3 or parts thereof can be removed.
  • a spreading element 11 which pushes the support parts 2.4 apart if necessary and so tighten the connection and can relax.
  • the tension rods 3 have thickenings 12 in the form of hammer heads at both ends. These thickenings 12 can be pushed in the unloaded state into corresponding recesses 13 in the form of T-shaped grooves of the support parts 2.4 to be connected.
  • the scraper 6 is here attached by way of example to the upper support part 2.
  • the press plane 14 depending on a pull rod 3 is used on both sides.
  • the thickenings 12 are based on a bearing surface A of the recess 13 of the support parts 2,4.
  • the bearing surface A is twice as wide as the tension rod 3 between the thickenings 12 in the axial direction.

Landscapes

  • Paper (AREA)
  • Support Of The Bearing (AREA)
  • Supports For Plants (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Press Drives And Press Lines (AREA)
  • Glass Compositions (AREA)
  • Finger-Pressure Massage (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
EP06114397A 2005-08-17 2006-05-23 Pressanordnung Not-in-force EP1754821B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06114397T PL1754821T3 (pl) 2005-08-17 2006-05-23 Układ prasujący

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005038838A DE102005038838A1 (de) 2005-08-17 2005-08-17 Pressanordnung

Publications (2)

Publication Number Publication Date
EP1754821A1 EP1754821A1 (de) 2007-02-21
EP1754821B1 true EP1754821B1 (de) 2009-05-20

Family

ID=37309353

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06114397A Not-in-force EP1754821B1 (de) 2005-08-17 2006-05-23 Pressanordnung

Country Status (4)

Country Link
EP (1) EP1754821B1 (pl)
AT (1) ATE431871T1 (pl)
DE (2) DE102005038838A1 (pl)
PL (1) PL1754821T3 (pl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008001345A1 (de) 2008-04-23 2009-10-29 Voith Patent Gmbh Pressanordnung
DE102008002040A1 (de) 2008-05-28 2009-12-03 Voith Patent Gmbh Pressanordnung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4110205C2 (de) 1991-03-28 2000-09-21 Voith Gmbh J M Walzenpresse

Also Published As

Publication number Publication date
EP1754821A1 (de) 2007-02-21
PL1754821T3 (pl) 2009-08-31
ATE431871T1 (de) 2009-06-15
DE102005038838A1 (de) 2007-02-22
DE502006003764D1 (de) 2009-07-02

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