EP2370629A1 - Procédé de broyage de fibres de pâte à papier en suspension aqueuse ainsi que garnitures de broyage pour la mise en uvre de ce procédé - Google Patents

Procédé de broyage de fibres de pâte à papier en suspension aqueuse ainsi que garnitures de broyage pour la mise en uvre de ce procédé

Info

Publication number
EP2370629A1
EP2370629A1 EP09736233A EP09736233A EP2370629A1 EP 2370629 A1 EP2370629 A1 EP 2370629A1 EP 09736233 A EP09736233 A EP 09736233A EP 09736233 A EP09736233 A EP 09736233A EP 2370629 A1 EP2370629 A1 EP 2370629A1
Authority
EP
European Patent Office
Prior art keywords
grooves
barriers
grinding
rotor
mahlgarnituren
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Withdrawn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
EP09736233A
Other languages
German (de)
English (en)
Inventor
Markus FÜRSATTEL
Tillman Katzenmeier
Hans-Hermann Kleinschnittger
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 EP2370629A1 publication Critical patent/EP2370629A1/fr
Withdrawn legal-status Critical Current

Links

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
    • D21D1/20—Methods of refining
    • D21D1/30—Disc mills
    • D21D1/306—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
    • D21D1/22—Jordans
    • D21D1/24—Jordan rolls
    • 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
    • D21D1/22—Jordans
    • D21D1/26—Jordan bed plates

Definitions

  • the invention relates to a method according to the preamble of claim 1.
  • Milling sets for milling pulp fibers with grinding bars and grooves in between are e.g. known from DE 20 2005 007 551 U1.
  • the invention is based on the object to provide a process for pulp milling, with which it is possible to carry out the grinding economically and particularly evenly, i. that the achieved grinding technological changes are largely the same for all fibers. This should also be possible in particular if relatively narrow grinding strips in the range from 1 mm to 5 mm are used.
  • the claims 27 to 31 describe in each case for the process particularly suitable Mahlgarnituren. With the help of these described features, it is possible to favorably influence the flows of the fiber suspension in and between the Mahlgarnituren.
  • the grooves located between the milling strips are to be regarded as flow channels for the suspension. It can be assumed in disc and Kegelrefinern that occurs as a result of the rotational movement of the rotor and entrained by him pulp suspension a more or less strong pressure build-up from the radially inner to the radially outer regions. Due to this pressure difference takes place in the non-rotating grooves, ie between the blades of the stator, at least partially, a back flow of the suspension from radially outside to radially inside instead.
  • the barriers according to the invention promote the escape of the suspension from the grooves located between the milling strips into the grinding zone, that is to say at the knife edges which meet. This repetition of the milling processes, the grinding is uniform, which is technologically and energetically of particular advantage.
  • Another advantage of the invention is that the barriers can be used to reduce or eliminate the risk of the suspension being conveyed too quickly through the grooves of the rotor assembly, which would lead to less grinding and to unnecessary energy consumption.
  • the said barriers can be used both in the fittings of the stator and those of the rotor or both.
  • FFiigg .. 11 the implementation of the method using the example of a Scheibenrefiners
  • Fig. 2 + 3 each a part (sector) of a usable according to the invention
  • Fig. 4 -8 Variants in shape and size of the barriers
  • Fig. 9 a barrier in perspective view
  • FFiigg .. 1100 a garment sector with axially offset barriers
  • FIG. 11 a garment sector with grinding edges having buckling points
  • Fig. 12 Implementation of the method using the example of a cone refiner.
  • the method according to the invention can be carried out in a grinding device, as shown schematically in section in FIG.
  • a stator 8 On a stator 8 is a Mahlgarnitur 1 and on a rotor 9, a grinding set 2 releasably secured by means of screws 12.
  • Mahlgarnituren 1 and 2 are knife sets, which are provided with Mahlleisten 6, which can be seen for example in Figs. 2 and 3 in plan view.
  • the suspension S to be grounded passes through the center of the stator 8 into the grinding sets 1 and 2.
  • the axial distance between the grinding sets 1 and 2 is greatly exaggerated. In operation, it is only fractions of a millimeter.
  • the suspension S passes through the cooperating Mahlgarnituren 1 and 2, exits at the discharge side again, collects in the annular space 7 and leaves at least partially the annular space 7 via a corresponding nozzle as a ground suspension S ' .
  • the rotor 9 is driven by a shaft 11. Not shown are the means known per se, with which a force is generated to press the two Mahlgarnituren against each other or adjust the grinding gap.
  • a barrier 4 ' is used in each groove 3 on the grinding set 1 belonging to the stator 8.
  • Your radial extent b may be short, z. B. 5 to 30 mm.
  • the barriers 4 ' are here arranged by the radially innermost edge of the grooves at a radial distance a2, which is about 70% of the radial extent L of these grooves 3, with advantage at least 50%.
  • the barriers 4 are arranged from the radially innermost edge of the grooves at a radial distance a1 which is approximately 30% of the radial extent L of these grooves 3, with advantage at most 50%.
  • the grinding set shown in FIG. 2 is used with further outwardly located barriers 4 ' on the stator 8 and that according to FIG. 3 with further inwardly located barriers 4 on the rotor 9, which also corresponds to the principle illustrated in FIG. It is but quite conceivable that the barriers are arranged just reversed, z. B. if it turns out to be an advantage that the backflow in the grooves of the stator and the flow in the grooves of the rotor assembly meets relatively late on a barrier.
  • each groove 3 may be provided with a barrier 4 or 4 ' or even a part of them, for. B. every second, third or fourth groove.
  • FIG. 3 shows an example in which every other groove contains a barrier 4.
  • the grooves 3 are each equipped with at most one barrier 4 or 4 ' , the distance a1 or a2 from the radially innermost edge of the grooves 3 being equal for all barriers 4 or 4 ' of the same clothing. It is furthermore advantageous if the distances a 1 and a 2 of interacting sets (rotor / stator) moving relative to one another differ significantly, for example by at least 10%.
  • the barriers 4 or 4 ' may have a height h equal to the groove depth t so as to extend to the grinding edges of the grinding bars 6.
  • Fig. 6, shows a barrier 5 with only 80% of the groove depth t amounting amount h, which therefore closes only a part of the groove. Even such a lower barrier 5 can be quite effective hydraulically.
  • 4, 5, 6, 7 and 9 show favorable embodiments in which the flowed guide surfaces of the barriers 4, 4 ' and 5 are chamfered in order to achieve better flow guidance at this point.
  • Such a chamfer 13 or 13 ' advantageously extends over at least 80% of the height h of the barrier.
  • the pitch angle ⁇ or ⁇ ' is then at least 15 degrees, z. B.
  • the grinding edges 15 can be rectilinear, which simplifies the production of the sets and fluidly favorable. As FIG. 11 shows, one or more break points 15 can also change the angle to the radius, in particular if this produces a more favorable cutting angle of the encountered grinding edges of cooperating grinding sets (rotor 9 with stator 8).
  • the method can also be designed so that in addition to the, in particular in combination with the measures described in the claims, the flow cross section in the grooves 3 is changed by different groove depth t.
  • the groove depth increases or decreases from the inside to the outside, the increase of the groove depth t in the stator and the decrease in the rotor being particularly advantageous. This also makes it possible to influence the return flow in the grooves, in particular to promote the transfer of the suspension flowing back into the grooves into the grinding zone.

Landscapes

  • Crushing And Grinding (AREA)
  • Paper (AREA)

Abstract

L'invention concerne un procédé de broyage de fibres de pâte à papier en suspension aqueuse, ces fibres étant guidées dans une suspension aqueuse (S) entre des garnitures de broyage (1, 2) qui sont munies de barres de broyage (6) et de rainures (3) situées entre ces dernières, qui se trouvent soit sur un rotor (9) soit sur un stator (8) et qui sont mises en rotation les unes par rapport aux autres et pressées les unes contre les autres, soumettant ainsi les fibres de pâte au broyage mécanique. Selon l'invention, on utilise des garnitures de broyage (1, 2) présentant des barrières (4, 4') au moins dans une partie des rainures (3), lesdites barrières fermant au moins partiellement ces rainures (3).
EP09736233A 2008-11-28 2009-10-16 Procédé de broyage de fibres de pâte à papier en suspension aqueuse ainsi que garnitures de broyage pour la mise en uvre de ce procédé Withdrawn EP2370629A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008059610A DE102008059610A1 (de) 2008-11-28 2008-11-28 Verfahren zur Mahlung von wässrig suspendierten Zellstofffasern sowie Mahlgarnituren zu seiner Durchführung
PCT/EP2009/063564 WO2010060685A1 (fr) 2008-11-28 2009-10-16 Procédé de broyage de fibres de pâte à papier en suspension aqueuse ainsi que garnitures de broyage pour la mise en oeuvre de ce procédé

Publications (1)

Publication Number Publication Date
EP2370629A1 true EP2370629A1 (fr) 2011-10-05

Family

ID=41786001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09736233A Withdrawn EP2370629A1 (fr) 2008-11-28 2009-10-16 Procédé de broyage de fibres de pâte à papier en suspension aqueuse ainsi que garnitures de broyage pour la mise en uvre de ce procédé

Country Status (6)

Country Link
US (1) US8789775B2 (fr)
EP (1) EP2370629A1 (fr)
CN (1) CN102245832B (fr)
BR (1) BRPI0916127A2 (fr)
DE (1) DE102008059610A1 (fr)
WO (1) WO2010060685A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012122156A (ja) * 2010-12-06 2012-06-28 Seed Co Ltd 古紙再生装置のパルプ製造装置および古紙再生装置
EP2689853B1 (fr) * 2011-03-23 2024-05-01 YFY Inc. Machine à frotter et récipient associé
CN105745382B (zh) * 2013-11-12 2018-06-22 3M创新有限公司 用于防火的固体复合膨胀型结构
PT3140454T (pt) * 2014-05-07 2020-02-25 Univ Maine System Produção de elevada eficiência de celulose nanofibrilada
CN104480766B (zh) * 2014-11-10 2017-05-24 合肥宏图彩印有限公司 一种锥形磨浆机
US10953405B2 (en) * 2015-06-11 2021-03-23 Valmet Technologies, Inc. Blade element
SE540016E (en) 2015-08-27 2021-03-16 Stora Enso Oyj Method and apparatus for producing microfibrillated cellulose fiber
DE202015009542U1 (de) * 2015-11-23 2018-03-12 Voith Patent Gmbh Mahlgarnitur
CN105618188A (zh) * 2016-03-21 2016-06-01 四川华益隆环保科技有限公司 一种用于钻井液颗粒细化的装置
DE102017120162A1 (de) * 2017-09-01 2019-03-07 Voith Patent Gmbh Konische Mahlanordnung
CN108729289B (zh) * 2018-07-20 2023-10-17 丹东鸭绿江磨片有限公司 一种磨浆机磨片
CN111705534B (zh) * 2020-06-04 2022-08-12 北京创源基业自动化控制技术研究所 一种秸秆分解机磨盘
EP4217536A1 (fr) * 2020-09-24 2023-08-02 Voith Patent GmbH Segment de garniture de raffinage

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921749A (en) * 1955-09-29 1960-01-19 Bolton John W & Sons Inc Flow diversion devices for frusto conical engines
FR1298656A (fr) * 1961-08-24 1962-07-13 Bolton Emerson Raffineur tronconique pour matières premières destinées à la fabrication du papier
US3387796A (en) * 1965-02-04 1968-06-11 Jones Division Defibrating device
CA1151926A (fr) * 1979-10-04 1983-08-16 Macmillan Bloedel Limited Disques d'affineur
CA1207572A (fr) * 1985-06-06 1986-07-15 William C. Leith Raffineur de copeaux a disques
SE503187C2 (sv) * 1988-10-25 1996-04-15 Sunds Defibrator Ind Ab Sätt vid tillverkning av fibermassa samt malsegment för en raffinör för genomförande av sättet
US5178339A (en) * 1989-03-03 1993-01-12 Atlanta Import Export Corporation Rotor disc for a refiner and method of formation thereof
SE501378C2 (sv) * 1993-06-17 1995-01-30 Sunds Defibrator Ind Ab Malelement för skivraffinörer för finfördelning av lignocellulosahaltigt material
US5954283A (en) * 1996-04-15 1999-09-21 Norwalk Industrial Components, Llc Papermaking refiner plates
US5893525A (en) * 1997-07-01 1999-04-13 Durametal Corporation Refiner plate with variable pitch
US6607153B1 (en) * 1998-08-19 2003-08-19 Durametal Corporation Refiner plate steam management system
US6325308B1 (en) * 1999-09-28 2001-12-04 J & L Fiber Services, Inc. Refiner disc and method
US20020185560A1 (en) * 2001-06-07 2002-12-12 Johansson Ola M. Adjustable refiner plate pattern
FI118971B (fi) * 2002-07-02 2008-05-30 Metso Paper Inc Jauhin
SE525980C2 (sv) * 2003-10-06 2005-06-07 Metso Paper Inc Malelement
FI120630B (fi) * 2004-01-23 2009-12-31 Metso Paper Inc Menetelmä jauhimen terityksen asentamiseksi tai vaihtamiseksi
DE202005007551U1 (de) 2005-05-12 2005-07-21 Voith Paper Patent Gmbh Schraubverbindung zur Befestigung einer zur Bearbeitung von Faserstoff geeigneten Garnitur sowie Mahlgarnitur
FI122364B (fi) * 2006-01-30 2011-12-30 Metso Paper Inc Jauhin
US20070210197A1 (en) * 2006-03-10 2007-09-13 Carpenter Charles T Refiner plate
FI121510B (fi) * 2007-09-28 2010-12-15 Metso Paper Inc Jauhin ja jauhimen teräsegmentti
FI121509B (fi) * 2007-11-30 2010-12-15 Metso Paper Inc Jauhimen staattorin jauhinpinta, jauhinpinnan teräsegmentti ja jauhin

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2010060685A1 *

Also Published As

Publication number Publication date
DE102008059610A1 (de) 2010-06-02
US20110278385A1 (en) 2011-11-17
CN102245832B (zh) 2015-07-29
WO2010060685A1 (fr) 2010-06-03
CN102245832A (zh) 2011-11-16
US8789775B2 (en) 2014-07-29
BRPI0916127A2 (pt) 2015-11-03

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