EP2496762A1 - Dispositif et procédé de fabrication d'une bande de matériau - Google Patents

Dispositif et procédé de fabrication d'une bande de matériau

Info

Publication number
EP2496762A1
EP2496762A1 EP10773298A EP10773298A EP2496762A1 EP 2496762 A1 EP2496762 A1 EP 2496762A1 EP 10773298 A EP10773298 A EP 10773298A EP 10773298 A EP10773298 A EP 10773298A EP 2496762 A1 EP2496762 A1 EP 2496762A1
Authority
EP
European Patent Office
Prior art keywords
drying device
lateral surface
contact surface
cylinder
interior
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.)
Withdrawn
Application number
EP10773298A
Other languages
German (de)
English (en)
Inventor
Erich Willer
Holger Brunner
Michael Lohrmann
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
Publication of EP2496762A1 publication Critical patent/EP2496762A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/02—Drying on cylinders
    • D21F5/021—Construction of the cylinders

Definitions

  • the invention relates to a drying device for drying a material web, in particular a paper, board or tissue web. It comprises a DampfbeCBCbaren cylinder with a jacket surface having an interior space and a device for increasing the heat transfer from the interior to the lateral surface.
  • the device comprises at least one axially arranged interference strip which has a contact surface which contacts the lateral surface and at least one contact pressure element for pressing the at least one interference strip against the lateral surface.
  • the spoiler bars are connected directly to the cylinder jacket.
  • the document DE2903784 discloses to screw the spoiler bars to the cylinder jacket or to fix it to the cylinder jacket by means of a clamping ring and magnetic support.
  • the prior art embodiments have the disadvantage that they are expensive to manufacture the connections of the fault strip and cylinder jacket and also require long manufacturing and assembly times.
  • the object of the invention is to further develop the known drying devices with regard to a cost-effective, reliable and practical design.
  • the object is solved by the features of claim 1.
  • Essential to the invention is that the lateral surface and / or the contact surface of the fault strip has means for increasing the coefficient of friction between the lateral surface and spoiler bars.
  • the individual fault strip and thus also the inguinal cage module which is composed of several spoiler bars and several retaining rings with clamping elements, securely fixed in the cylinder interior.
  • several inguinal cage modules can be arranged in the longitudinal direction of the cylinder one behind the other.
  • Another advantage of the inventive solution is that holes or threaded holes can be avoided in the cylinder jacket for fixing the spoiler bars and thus weakening of the cylinder jacket. Furthermore, the installation and attachment of the spoiler bars are cheaper, easier and easier. Likewise, the inventive solution prevents slippage of the spoiler bars despite strong temperature changes between the long service intervals of the cylinder, which can be quite a year.
  • a surface structure of the lateral surface and / or the contact surface of the interference strip are provided as means for increasing the coefficient of friction. This has the advantage that despite moderate contact pressure of the faulty strip by the retaining ring a very good and permanent fixation is guaranteed.
  • the lateral surface preferably has a surface structure only in the contact region with the interference strip.
  • the surface structure has grooves.
  • the grooves may extend in the circumferential direction of the cylinder and / or in the axial direction to the cylinder axis.
  • the grooves may extend in a direction deviating from the axial direction of the cylinder. It is likewise possible if the contact surface of the interference strip has zones which have different surface structures and / or structures with different orientations. By using different surface structures 7 and different orientations of the structures, a good fixation of the noise strip 2 against forces from all directions can be achieved.
  • the contact surface of the interference strip has zones which only partially have a surface structure.
  • the entire area of the interference strip facing the lateral surface forms the contact surface.
  • only a part of the surface of the interference strip facing the lateral surface forms the contact surface.
  • the grooves are designed as a serration.
  • the tips of the serrations are flattened to a width in the range between 0.01 mm and 5 mm, preferably in the range of 0.2 mm to 0.5 mm, in particular 0.3 mm.
  • the mean tooth height or the mean groove depth or the average texture depth is greater than 0.03 mm, in particular greater than 0.05 mm, preferably greater than or equal to 0.1 mm. As a result, a sufficient fixation is achieved.
  • the mean value corresponds to the arithmetic mean of the individual depths.
  • the material of the cylinder expediently belongs to the group of metallic materials, such as gray cast iron, cast steel or steel.
  • the spoiler bars may also be made of metallic materials such as steel and stainless steel.
  • the surface structure is produced by chip removing processes, such as milling, grinding or by eroding or etching or coating.
  • the means consists of a material combination which forms the lateral surface and the contact surface and increases the friction.
  • the following material combinations can be used: metal / metal, metal / plastics, wherein the temperature resistance of the plastics used is greater than 200 ° C, in particular greater than or equal to 220 ° C, preferably greater than 250 ° C.
  • plastics carbon fiber reinforced composites or sulfone-containing plastics can be used.
  • the lateral surface and / or the contact surface are coated.
  • the coating material may, in one possible embodiment, originate from the field of adhesives. It can also be provided that the materials forming the lateral surface and the contact surface have different hardnesses and / or different moduli of elasticity.
  • the interference strip is formed from a U-profile and both legs form the contact surface, wherein the pressing element consists of at least one circumferentially extending retaining ring with clamping element, wherein the retaining ring cooperates with the clamping element such that a radial, on the Störological acting clamping force of at least one retaining ring is formed.
  • the spoiler bars can, as is already known from the prior art, be designed as a U-profile, square profile or polygonal profile or hollow profile or as a solid profile.
  • Another aspect of the invention relates to a method for fastening a device for increasing the heat transfer in a jacket surface having an interior of a Dampfbeauchbaren cylinder, wherein the device has at least one axially arranged Störrau having a contact surface contacting the lateral surface and at least one pressing element for pressing the Störangn to the lateral surface, includes.
  • the method is characterized in that friction-increasing measures, in particular structuring or coating, are carried out on the lateral surface and / or the contact surface before the fastening step.
  • FIG. 1 shows an exemplary, steam-heatable drying cylinder with a strip cage module
  • Figure 2 shows an exemplary embodiment of the invention
  • Inguinal cage in cross-section perpendicular to the longitudinal axis of the drying cylinder.
  • Figure 3 is a running as a U-profile Störj
  • Figure 4 is a running as a U-profile Störj
  • FIG. 6 shows the side view of the interference strip in FIG. 2
  • FIG. 7 a shows the plan view of the interference strip in FIG. 1
  • Figure 7b the top view of a faulty strip of U-profile with different surface structures.
  • FIG. 8 shows an enlargement of the detail "X" in FIG. 5 1 shows a drying device 1 according to the invention, with a Dampfbeauchbaren cylinder 1 .1 in particular a drying cylinder 1 .1 a paper machine with built in its interior ingot cage 10.
  • the Störjon 2 are axially, that is parallel to the longitudinal axis of the drying cylinder 1 .1, arranged and pressed with four retaining rings 3 to the lateral surface 1 .2.
  • the running as a pressing element retaining rings 3 are composed of retaining ring segments 3.1. To generate the radial clamping force on the spoiler bars 2, the retaining ring segments are pressed apart by clamping elements such as coil springs or cylinder springs 4.
  • the illustrated inguinal cage 10 may also form a last cage module for wider paper machines.
  • the inguinal cage of wide drying cylinders 1 .1 is then formed by a plurality of strip cage modules 10 arranged next to one another. These strip cage modules 10 are then preferably the same width. Thus, the same modules can be combined into a last cage. In the event that the length of the interior of the cylinder does not correspond to the integral multiple of the width of a last cage module, the missing length is fitted with a cage with a suitable width.
  • a strip cage 10 is shown schematically in cross-section perpendicular to the longitudinal axis of the drying cylinder 1 .1.
  • the retaining ring 3 consists of 3 retaining ring segments 3.1, 3.2, 3.3 are connected via trained as a spiral springs 4 clamping elements in operative connection.
  • the spoiler bars 2 are arranged on the outer circumference of the retaining ring 3 and formed as U-profiles.
  • spoiler bars 2 consisting of U-profiles are shown in cross-section.
  • the contact surface 8 is in the embodiment in Figure 3 formed by the two legs 5 of the U-profile.
  • the surface structure of the contact surface 8 is designed as a serration 7.
  • the structured contact surface 8 is pressed by the retaining rings 3 against the inner circumferential surface of the drying cylinder 1 .1.
  • Figure 4 shows a section through a noise strip 2, in which case the Störancenguren 6 forms the contact surface 8. Also in this example, the surface structure 7 of the contact surface 8 is designed as a serration 7.
  • FIGS. 5 and 6 the spoiler bars 2 shown in FIGS. 3 and 4 are shown in side view.
  • the shape of the serration 7 becomes clear. It is characterized by linear tip edges, which press when pressing the spoiler bars by the retaining rings 3 to the lateral surface 1 .2 of the drying cylinder 1 .1 - albeit only slightly - in the lateral surface 1 .2, thus ensuring a secure fit.
  • the line-shaped tip edges are not exactly pointed, but are somewhat flattened, as shown in FIG.
  • the tips of the serrations are flattened to a width B in the range between 0.01 mm and 5 mm, preferably in the range of 0.2 mm to 0.5 mm, in particular 0.3 mm.
  • the mean tooth height T or the mean groove depth T or the average texture depth T is greater than 0.03 mm, in particular greater than 0.05 mm, preferably greater than or equal to 0.1 mm.
  • the mean value corresponds to the arithmetic mean of the individual depths.
  • FIGS. 7a and 7b surface structures 7 of interference strips 2 with different orientations are shown.
  • the contact surface 8 of the interference strip 2 in FIG. 7 b has two zones with different surface structures 7. By using different surface structures 7 and different orientations of the structures, a good fixation of the noise strip 2 against forces from all directions can be achieved.

Landscapes

  • Drying Of Solid Materials (AREA)

Abstract

La présente invention concerne un dispositif de séchage (1) servant à sécher une bande de matériau, notamment une bande de papier, de carton ou de tissu, le dispositif comportant un cylindre (1.1), pouvant être chauffé à la vapeur et doté d'un espace intérieur présentant une surface d'enveloppe (1.2), ainsi qu'un dispositif (10) disposé dans l'espace intérieur et servant à accroître le transfert de chaleur de l'espace intérieur à la surface d'enveloppe (1.2). Le dispositif (10) comprend au moins une baguette déflectrice (2) disposée axialement, comprenant une surface de contact (8) contiguë à la surface d'enveloppe (1.2) et comportant au moins un élément de pression (3) servant à presser la ou les baguettes déflectrices contre la surface d'enveloppe (1.2). L'invention se caractérise par le fait que la surface d'enveloppe (1.2) et/ou la surface de contact (8) de la baguette déflectrice (2) comprennent des moyens servant à accroître le coefficient de frottement entre la surface d'enveloppe (1.2) et les baguettes déflectrices (2).
EP10773298A 2009-11-05 2010-10-29 Dispositif et procédé de fabrication d'une bande de matériau Withdrawn EP2496762A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910046415 DE102009046415A1 (de) 2009-11-05 2009-11-05 Vorrichtung und Verfahren zur Herstellung einer Materialbahn
PCT/EP2010/066481 WO2011054753A1 (fr) 2009-11-05 2010-10-29 Dispositif et procédé de fabrication d'une bande de matériau

Publications (1)

Publication Number Publication Date
EP2496762A1 true EP2496762A1 (fr) 2012-09-12

Family

ID=43216260

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10773298A Withdrawn EP2496762A1 (fr) 2009-11-05 2010-10-29 Dispositif et procédé de fabrication d'une bande de matériau

Country Status (4)

Country Link
EP (1) EP2496762A1 (fr)
CN (1) CN102686797A (fr)
DE (1) DE102009046415A1 (fr)
WO (1) WO2011054753A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105544274B (zh) * 2016-01-27 2017-12-05 杭州大路装备有限公司 一种双金属造纸烘缸及制备方法
CN116608666B (zh) * 2023-07-20 2024-01-26 无锡盟璨智能科技有限公司 一种防干扰的纱线烘干设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2849454C2 (de) * 1978-11-15 1980-07-24 J.M. Voith Gmbh, 7920 Heidenheim Zylinder, insbesondere Trockenzylinder für Papiermaschinen
DE2903784C2 (de) * 1979-02-01 1981-05-21 J.M. Voith Gmbh, 7920 Heidenheim Drehbarer Hohlzylinder, insbesondere Trockenzylinder für Papiermaschinen
DE4311936A1 (de) * 1993-04-10 1993-10-07 J M Voith Ag St Poelten Verfahren und Vorrichtung zum verschiebesicheren Positionieren eines Bauteils
US7028756B2 (en) * 2002-05-17 2006-04-18 The Johnson Corporation Apparatus for increasing a transfer of thermal energy through an inner surface of a hollow cylindrical dryer of a papermaking machine
CN2692190Y (zh) * 2004-04-06 2005-04-13 约翰逊（无锡）技术有限公司 一种用于提高热量通过造纸机烘缸内壁热传导能力的装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011054753A1 *

Also Published As

Publication number Publication date
DE102009046415A1 (de) 2011-05-12
WO2011054753A1 (fr) 2011-05-12
CN102686797A (zh) 2012-09-19

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