EP1572366B1 - Verfahren zur herstellung von garnituren für das mechanische bearbeiten von wasserhaltigem papierfaserstoff - Google Patents

Verfahren zur herstellung von garnituren für das mechanische bearbeiten von wasserhaltigem papierfaserstoff Download PDF

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Publication number
EP1572366B1
EP1572366B1 EP03779988A EP03779988A EP1572366B1 EP 1572366 B1 EP1572366 B1 EP 1572366B1 EP 03779988 A EP03779988 A EP 03779988A EP 03779988 A EP03779988 A EP 03779988A EP 1572366 B1 EP1572366 B1 EP 1572366B1
Authority
EP
European Patent Office
Prior art keywords
processing elements
mask
base body
produced
fillings
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.)
Expired - Lifetime
Application number
EP03779988A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1572366A2 (de
Inventor
Werner Lange
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 EP1572366A2 publication Critical patent/EP1572366A2/de
Application granted granted Critical
Publication of EP1572366B1 publication Critical patent/EP1572366B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/004—Methods of beating or refining including disperging or deflaking
    • D21D1/006—Disc mills
    • D21D1/008—Discs
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining
    • D21D1/30—Disc mills
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4981—Utilizing transitory attached element or associated separate material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49895—Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49904—Assembling a subassembly, then assembling with a second subassembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49995—Shaping one-piece blank by removing material

Definitions

  • the invention relates to a method for producing sets according to claim 1.
  • Cloths produced in this way are primarily used to grind paper fibers, to disperse contaminants in the paper pulp or to remove debris, ie to dissolve paper fiber agglomerates. They are then used in grinding machines (refiners), de-spreaders or dispersers. Such machines have at least one rotor and at least one stator with either disc-shaped or conical surfaces on which the sets are mounted, so that gaps can form between them. Many trimmings have webs and grooves on the work surfaces, which is why we also speak of "knife trimmings". Other trimmings, for example as inserts in dispersers, have the form of toothed rings. In the DE 195 23 704 A1 Dispergergamituren are shown and described. It is known that in addition to the shape of the webs, grooves and teeth and the material of which they are made, has effects on the processing of the pulp.
  • the paper fibers are in a pumpable suspension, ie with a solids content of about 2-8% before or as a tough substance with an overlying solids content.
  • Dispersers usually work at a solids content between 15 and 25%.
  • the trimmings are subject to wear and must therefore be replaced at certain intervals.
  • the wear can already lead to the fact that the machining effect changes.
  • Shape, in particular edge shape, and surface of the trimmings namely have a paramount influence on the processing effect.
  • the main body of a machining tool provides the connection of the processing elements to the other components, eg. As those of a grinding machine ago. Because of the high forces that occur in such a grinding machine, high strength requirements are placed on the body. It must also be possible to securely fasten it to the grinding machine, for example by highly stressed screws are required. Because of these requirements, a particularly strong and tough material is required.
  • Mahlgarnituren Another method for the production of Mahlgarnituren is known. Again, the Mahlleisten be prepared separately, in a plate used and firmly connected with this by tack welding. To perform such a joining method, the grinding bars must be provided on its underside with fixing tongues which are inserted through the openings in the plate, after which they protrude on the underside of the plate, so that subsequently the welding process can be carried out.
  • the invention is based on the object to design the method for the production of trimmings so that the production is substantially simplified and yet particularly suitable hard materials for highly stressed
  • Machining elements can be used.
  • the mask used for the process may consist of a sheet of uniform thickness, in which the openings have been introduced by laser cutting. It is easily possible to make different openings for sets with different grinding effect as needed. Since the processing elements are initially manufactured separately, it is possible to use for these optimal materials and thereby to produce the shape of the set relatively easy. With the help of the mask namely, it is possible to position the processing elements precisely and safely in the right places on the base body and to keep it there during the subsequent operation. Since usually a larger number of processing elements is required for a set, it makes sense to perform the insertion of the elements in the mask by means of an automatically operating device.
  • the process has the advantage of being readily operable and readily automatable, it also provides very good strength because the processing elements can be bonded to both the base and the mask.
  • Particularly suitable for this purpose is a high-temperature soldering method with which all connections belonging to one processing unit can be produced simultaneously. Such processes are usually carried out at very high temperatures, e.g. above 1000 ° C, preferably about 1050 ° C.
  • a vacuum is also conceivable, but more complex.
  • the outline contour of the mask can be slightly smaller than that of the associated base body. It is also possible to associate several smaller masks with a single basic body by segmenting them in the circumferential direction. This simplifies the grinding technology design of diagonal knife sets: Since the knives of such sets are parallel to one another on a segment, the deviation of the knife angles from the desired value can be kept smaller with a larger number of segments per basic body. It is particularly economical, the body as
  • Such a support frame may be constructed of stacked laminations (sandwich construction); where the mounting holes already exist. The sandwich, the mask and the processing elements can be soldered together in a single operation.
  • the mask can easily be attached to the main body, e.g. connect through welds.
  • Fig. 1 shows a part of a base 1, which is covered with a mask 3, wherein the connection is made here by welds 7 or welds.
  • the mask 3 is provided with a larger number of through holes 4.
  • a processing element 5 is already used in the leftmost opening.
  • the processing elements 5 are strip-shaped and can be made, for example, from rolled profiles. They have a constant height over the surface, which therefore also corresponds to that of the foot 6.
  • the openings 4 and the shape of the foot 6 are so each other matched that the processing element 5 can be used without play in the opening 4. Since a high-temperature soldering process is performed, the solder can already be applied prior to insertion on the corresponding surfaces. In this case, solder deposits in the form of small depressions or grooves in the components to be connected can advantageously be applied (not shown here).
  • the mask 3 can also be embedded in a correspondingly shaped base body, so be embedded.
  • the Fig. 2 which shows a finished clothing 2 in perspective and in section, shows that the soldering surface 9 (drawn as thickened lines) connects the machining elements 5 both to the base body 1 and to the mask 3. Since the stress on the clothing during operation can be relatively high, this large-area connection is a particular advantage.
  • the soldering surface 9 'extends here also over the contact surfaces between the mask 3 and body 1, but this is not always necessary and increases the processing cost.
  • the thickness c of the mask 3 is usually between 2 and 10 mm in size.
  • garnish 2 can, for example, as a grinding segment (s. Fig. 4 ) be understood for a disc refiner, which is known to contain a plurality of strip-shaped processing elements 5. Such trimmings are also called knife trimmings. They are provided with screw holes 10 and are screwed onto the rotor or the stator of a Scheibenrefiners. As is known, these are wear parts, which must therefore be renewed at certain intervals.
  • Fig. 3 shows a way to make the shape of the processing elements 5 'special, which is facilitated by the inventive method.
  • the example in the rotor in the direction of movement (arrow 18) forward cutting edge has at the top opposite the plane parallel to the direction of an angle ⁇ between 0 and 10 ° and at the front opposite the plane perpendicular thereto an angle ⁇ also between 0 and 10 ° , This prevents unwanted edge rounding.
  • the main body 1 " in the example shown here consists of three stacked laminations 19, 19 ', 19 ", each of which may have the same thickness (eg 6 mm) .
  • the sheet-metal lamination 19 drawn above - by high-temperature soldering - with a lower plate 20 and this in turn with connected to the mask 3, which - as already described was provided with processing elements 5.
  • the main body 1 " is not solid, but constructed as a support frame with bearing areas in which the screw holes 10 are located.
  • the lower plate 20 is dimensioned according to the strength requirements (possibly also the same thickness as the lamination plates 19, 19', 19"). ) and can absorb the pressure forces resulting from the grinding over the cavities 21.
  • the laminations 19, 19 'and 19 " can be soldered to each other and to the lower plate 20 in the same operation, in which the processing elements 5 are anchored in the mask 3.
  • the layered structure of the main body 1" has the particular advantage that its Making cheaper and cheaper.
  • the outer contour, the cavities 21 and the screw holes 10 can be produced favorably by laser cutting.
  • a set is to be manufactured for a cone refiner.
  • the main body 1 '- like Fig. 6 shows - the shape of a truncated cone or a part thereof.
  • This can also be provided with a mask 3, in which then in the manner already described, the processing elements 5 are inserted and secured.
  • the sets made according to the method described can belong to both the rotor 11 and the stator 12.
  • Most refiners are known to provide rotor and stator with knife sets.
  • the slurry 14 to be ground is passed between the blades through the machine.
  • the rotor 11 is driven by the shaft 13.
  • FIGS. 7 and 8 show the FIGS. 7 and 8 one each Base body 1 with an applied mask 3 and a number of already used processing elements.
  • some different tooth shapes are exemplarily shown, for example, simple cubic teeth 15 or beveled teeth 16, which serve as processing elements in the context of the invention. It may be necessary to weigh whether a larger number of single-shaped, easy-to-manufacture single teeth is used or whether several teeth in larger or smaller groups of teeth 17, 17 'summarized and then to be used in the mask 3.
  • hard brittle metal alloys can be used that have been optimized for fiber processing. They can also be hardened after high temperature soldering or during the process. For example, after the high-temperature soldering, the cooling can be carried out so fast that, when carbon steels are used, the processing elements thermally harden.
  • the main body may consist of relatively tough Cr-Ni steel. As it is covered by the pulp suspension through mask and processing elements, it can also be made of non-corrosion resistant steel, further reducing costs. Another possibility is the coating of the base body with corrosion-resistant material.
  • the mask can be made with advantage from relatively tough Cr-Ni steel sheet, in which the openings were cut by laser.

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  • Paper (AREA)
  • Artificial Filaments (AREA)
  • Making Paper Articles (AREA)
EP03779988A 2002-12-13 2003-11-19 Verfahren zur herstellung von garnituren für das mechanische bearbeiten von wasserhaltigem papierfaserstoff Expired - Lifetime EP1572366B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10258324A DE10258324B4 (de) 2002-12-13 2002-12-13 Verfahren zur Herstellung von Garnituren für das Mahlen von wasserhaltigem Papierfaserstoff
DE10258324 2002-12-13
PCT/EP2003/012930 WO2004054717A2 (de) 2002-12-13 2003-11-19 Verfahren zur herstellung von garnituren für das mechanische bearbeiten von wasserhaltigem papierfaserstoff

Publications (2)

Publication Number Publication Date
EP1572366A2 EP1572366A2 (de) 2005-09-14
EP1572366B1 true EP1572366B1 (de) 2009-09-23

Family

ID=32518938

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03779988A Expired - Lifetime EP1572366B1 (de) 2002-12-13 2003-11-19 Verfahren zur herstellung von garnituren für das mechanische bearbeiten von wasserhaltigem papierfaserstoff

Country Status (15)

Country Link
US (1) US7263755B2 (zh)
EP (1) EP1572366B1 (zh)
JP (1) JP2006509922A (zh)
KR (1) KR20050085527A (zh)
CN (1) CN100455719C (zh)
AT (1) ATE443573T1 (zh)
AU (1) AU2003288115A1 (zh)
BR (1) BR0306877A (zh)
CA (1) CA2509843A1 (zh)
DE (2) DE10258324B4 (zh)
ES (1) ES2331515T3 (zh)
NO (1) NO20053308L (zh)
PL (1) PL375723A1 (zh)
RU (1) RU2329343C2 (zh)
WO (1) WO2004054717A2 (zh)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6935589B1 (en) * 1998-08-17 2005-08-30 Norwalk Industrial Components, Llc Papermaking refiner plates and method of manufacture
US7207442B2 (en) * 2003-12-16 2007-04-24 Xerox Corporation Die storage tray having machined grooves and vacuum channels
US20090045278A1 (en) * 2004-10-21 2009-02-19 Ulrich Bech Crushing element and mills with grinding bodies, mixers, extruders and a pressing worm provided with said crushing elements
US7478773B2 (en) * 2006-01-09 2009-01-20 Andritz Inc. Tooth refiner plates having V-shaped teeth and refining method
US20070210197A1 (en) * 2006-03-10 2007-09-13 Carpenter Charles T Refiner plate
FR2908791B1 (fr) * 2006-11-22 2008-12-26 Acieries De Bonpertuis Soc Par Element de raffinage pour fibres, notamment papetieres et raffineur mettant en oeuvre un tel element
ITVR20070170A1 (it) * 2007-11-23 2009-05-24 Airaghi Srl Off Procedimento per la realizzazione di ricambi conici per raffinatori per la produzione di carta
FI124393B (fi) * 2008-06-19 2014-08-15 Valmet Technologies Inc Jauhin ja menetelmä kuitumaisen materiaalin jauhamiseksi ja teräsegmentti kuitumaisen materiaalin jauhamiseksi tarkoitettuun jauhimeen
FI124677B (fi) * 2008-06-19 2014-11-28 Valmet Technologies Inc Jauhin, jauhinpinta, teräsegmentti ja menetelmä kuitumaisen materiaalin jauhamiseksi
FI127628B (en) 2014-06-26 2018-10-31 Valmet Technologies Inc Yksilevyjauhin
DE102014009588A1 (de) * 2014-06-27 2016-01-14 Andritz Fiedler Gmbh Garnitur für das mechanische Bearbeiten, insbesondere Mahlen von suspendiertem Faserstoffmaterial
DE102015207536A1 (de) * 2015-04-24 2016-10-27 Voith Patent Gmbh Behandlungsgarnitur
AU2017375308B2 (en) * 2016-12-14 2020-12-03 Byung Kul Min Refiner bar plate including micro-fine bar and method for manufacturing same
KR102223636B1 (ko) * 2020-10-08 2021-03-04 조아인 리파이너 플레이트

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Also Published As

Publication number Publication date
PL375723A1 (en) 2005-12-12
DE10258324B4 (de) 2008-03-27
KR20050085527A (ko) 2005-08-29
JP2006509922A (ja) 2006-03-23
EP1572366A2 (de) 2005-09-14
WO2004054717A2 (de) 2004-07-01
ES2331515T3 (es) 2010-01-07
CN1726314A (zh) 2006-01-25
RU2005122028A (ru) 2006-01-20
ATE443573T1 (de) 2009-10-15
CA2509843A1 (en) 2004-07-01
BR0306877A (pt) 2004-11-03
NO20053308L (no) 2005-07-06
DE10258324A1 (de) 2004-07-15
WO2004054717A3 (de) 2004-08-19
US7263755B2 (en) 2007-09-04
CN100455719C (zh) 2009-01-28
AU2003288115A1 (en) 2004-07-09
DE50311951D1 (de) 2009-11-05
US20040128817A1 (en) 2004-07-08
RU2329343C2 (ru) 2008-07-20

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