EP0731210B1 - Machine de raffinage et outil de raffinage pour le raffinage des matières fibreuses en suspension - Google Patents

Machine de raffinage et outil de raffinage pour le raffinage des matières fibreuses en suspension Download PDF

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Publication number
EP0731210B1
EP0731210B1 EP96102493A EP96102493A EP0731210B1 EP 0731210 B1 EP0731210 B1 EP 0731210B1 EP 96102493 A EP96102493 A EP 96102493A EP 96102493 A EP96102493 A EP 96102493A EP 0731210 B1 EP0731210 B1 EP 0731210B1
Authority
EP
European Patent Office
Prior art keywords
milling
strip
milling tool
shaped elevations
fibrous material
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
EP96102493A
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German (de)
English (en)
Other versions
EP0731210A3 (fr
EP0731210A2 (fr
Inventor
Frank Dr. Meltzer
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 Paper Fiber and Environmental Solutions GmbH and Co KG
Original Assignee
Voith Sulzer Stoffaufbereitung 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 Sulzer Stoffaufbereitung GmbH filed Critical Voith Sulzer Stoffaufbereitung GmbH
Publication of EP0731210A2 publication Critical patent/EP0731210A2/fr
Publication of EP0731210A3 publication Critical patent/EP0731210A3/fr
Application granted granted Critical
Publication of EP0731210B1 publication Critical patent/EP0731210B1/fr
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
    • D21D1/20—Methods of refining
    • D21D1/22—Jordans
    • 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

Definitions

  • the invention relates to devices for grinding suspended Fibrous material according to the preamble of claim 1 or 5.
  • Grinding tools of the type mentioned are often also called sets and in Grinding machines - so-called refiners - installed.
  • Such grinders have at least one rotor and at least one stator with either disk ring or frustoconical surfaces on which the grinding tools or fittings are attached be so that grinding gaps can form between them.
  • the ones considered here Grinding tools have webs and grooves on the work surfaces, which is why one of "Knife trimmings" speaks.
  • An annular grinding surface is used in technical Practice often generated by having a number of the same ring segments is assembled until there is a full circumference with one for all segments common center results.
  • a grinding tool provided for the grinding of wood pulp is in the DE-OS 25 22 349 shown. It is a knife set with a special inner Ring section that serves to break up the incoming wood pulp, not the one the intended change in the fibers themselves during grinding DE-OS 26 09 727 shown refiner is primarily on the Requirements matched with mechanical wood pulp. thats why an internal "refine zone" in front of the actual grinding zone, in which the Fiber material is broken down almost to the individual fiber. The actual grinding of the Fibers only then take place in the radially outer grinding zone. Yet leads further towards the division of the processing zones within a machine US 5,200,038, in which two rotors provided with different drives very special grinding tools are provided. Again, the incoming substance (Pulp) first of all fed to a pre-zone, which here only acts as a fluidization zone.
  • the invention thus creates grinding devices in which the energy used can be better used for grinding the fibrous material. It has shown that it is not only the increase in grinding degree that can be achieved more economically, but that with the grinding also a relatively good preservation of the fiber lengths and Fiber strength is possible.
  • the effect as is already the case indicated that one can always start from the grinding developments that have been achieved so far, which is why it does not make sense to generally specify a fixed numerical value here.
  • studies on the subject of the invention show a significant one Reduce the energy required without sacrificing fiber quality would have to be accepted.
  • a major innovation compared to the prior art is one improved flow guidance in the operation of the grinder from the Fibrous suspension flowed through the gap between the rotor and stator.
  • the fibers are changed by strong forces, with only a very small distance between the Worktops is set. Because there are several on the work surface so defined Strips, one behind the other, viewed in the direction of the channels, are each one Have a distance of at least 8 mm, there arise several according to the invention Intermediate zones, in which the coming from the grinding area in front, ie already ground suspension added and then the following Grinding area can be supplied.
  • Such an intermediate zone probably has one double benefit as it is both the desirable partial return of the already ground suspension in the grinding area in front of it as well Uniformity of the flow in the subsequent grinding area promotes. Thereby the grinding result can be improved, in particular the grinding can be more uniform.
  • Such intermediate zones can be created by grooves which e.g. are circular. Polygon-shaped grooves are also particularly advantageous, as through these the sometimes somewhat critical wear of grinding tools in the groove area is reduced.
  • a special strip-free area can also be created be, which the suspension first flows through before it enters the grinding area of the considered grinding machine or the grinding tool comes. So before or at that Entry of the suspension into the knife area of the grinding device a rotation zone provided that borders on a rotating surface, but in which at least there are no webs on one side. There is none in this annular zone Grinding instead. A possible reason for the further improvement of profitability could even out the suspension flow when entering the Be a grinding zone.
  • the said annular zone can be designed by the actual Grinder are formed or according to claim 9 in the radially inner zone of the Grinding tools themselves.
  • Fig. 1 shows the subject of the invention in the form of a disc refiner.
  • the rotor and stator are used as a grinding tool holder.
  • the suspended fibrous material can over the Inlet opening 5 and the outlet opening 6 are removed.
  • the rotor 2 is axially fixed, while the stator 3 axially relative to Rotor 2 is movable, being prevented from rotating by bolts 15.
  • the Rotor 2 has a working surface 7 and stator 3 a complementary one Work surface 8.
  • a grinding gap 9 is formed between the two work surfaces. The latter is exaggerated here and in the other figures.
  • the illustration is chosen so that the strip-shaped elevations 10 and 11 cut in the upper part and in the lower part are drawn uncut. It can be seen that on both sides of the grinding gap 9 three strip-shaped elevations 10 and 11 each arranged radially one behind the other, i.e. are interrupted by grooves 16. They also extend here on the Stator side less far inwards than on rotor 2.
  • FIG. 2 shows a section of the subject matter of the invention from FIG. 1 with one part of the stator 3.
  • the free dimensions a 'and a' 'between the strip-shaped elevations 11 are recognizable as well as the clearance a, around which the base 14 of the grinding tool extends radially further inward than the elevation 11.
  • the elevation has that Height c above the base 14.
  • Fig. 3 shows schematically a diagram which shows the grinding development M in Dependence on the grinding energy E.
  • the Grinding development according to curve A2 while using the invention a faster Grinding development, curve A1, can be achieved.
  • FIGS. 4, 4 or 5 are further embodiments based on a disc refiner basically outlined.
  • the interruptions of the strips by grooves can namely be on the stator side (FIG. 4), on the rotor side (FIG. 5) or — as already in FIG. 1 shown - on both sides.
  • 6 differs from that of Fig. 2 in that not only the actual bar 11, but also that on the stator 3 mounted grinding tool itself has interruptions due to grooves. Of course 6 can also apply to the other combinations according to FIGS. 1, 4 or 5 can be applied.
  • FIG. 7 outlines a cone refiner in which the on the working surface of the rotor 2 lying elevations 10 are interrupted by grooves.
  • the stator 3 can have elevations 11 with interruptions.
  • Fig. 8 shows a top view of a typical one found on disc refiners Work surface with a large number of elevations 10, which are designed differently here with width b and the channel-like grooves 12 lying therebetween. Furthermore, there are grooves 16, namely ring grooves, with the dimensions a ', a' '.
  • the surveys 10 are also shorter by the internal dimension a than the base area 13. These Representation is to be understood as part / segment of the entire circumference.
  • the complementary work surface has mostly the same with regard to the surveys Pattern, whereby for the existence of the free dimensions a, a ', a' 'this is already in Connection with Fig. 1 and 4-6 said applies.
  • the complementary work surface can but can also be designed very differently, e.g. have different knife angles, flat porous be or have a pimple or lace pattern.
  • the grinding tool according to FIG. 9 is similar to that of FIG. 8, but has two polygenic recesses 17, which results in three grinding areas 18, 18 'and 18''lying one behind the other. Here only one of the segments of 45 o is drawn, from which an annular set can be assembled.

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  • Polishing Bodies And Polishing Tools (AREA)
  • Crushing And Grinding (AREA)
  • Paper (AREA)

Claims (19)

  1. Broyeuse destinée à broyer une matière fibreuse en suspension, notamment du papier et/ou des fibres de cellulose, constituée d'un carter (1) avec des ouvertures d'entrée et de sortie (5, 6) pour la matière fibreuse, avec au moins deux porte-outils de broyage, notamment un rotor (2) pouvant être entraíné et un stator (3), qui se prêtent à la mise en place d'outils de broyage pour réaliser au moins une surface de travail (7) et une autre surface de travail (8) complémentaire, qui sont positionnées l'une par rapport à l'autre pour former une fente de broyage (9) pouvant être traversée par la matière fibreuse, une surface de travail (7 ou 8) au moins présentant un grand nombre de reliefs (10, 10', 10", 11) en forme de baguettes, dits lames, entre lesquels se trouvent des rainures (12) du type canal, ce qui fait que la matière fibreuse est au moins partiellement emmenée par celles-ci, de l'intérieur vers l'extérieur, et qu'il peut se produire un traitement mécanique de la matière fibreuse par le déplacement relatif des deux surfaces de travail (7 et 8) complémentaires, caractérisée en ce que sur au moins un côté de la fente de broyage (9) sont disposés l'un derrière l'autre, dans la direction des canaux, au moins trois reliefs (10, 10', 10", 11) en forme de baguettes de la surface de travail destinée au broyage des fibres, et en ce que, dans le sens d'écoulement de la matière fibreuse, les reliefs successifs (10, 10', 10", 11) présentent une distance avec un espace libre (a', a", a"') d'au moins 8 millimètres.
  2. Broyeuse selon la revendication 1, caractérisée en ce que sur au moins un côté d'une fente de broyage (9), les reliefs (10, 10', 10", 11) en forme de baguettes, qui se situent radialement le plus loin à l'intérieur, de la surface de travail (7, 8) destinée au broyage des fibres, s'étendent sur un espace libre (a) d'au moins 8 millimètres, moins loin vers l'intérieur que le porte-outil de broyage correspondant.
  3. Broyeuse selon la revendication 1 ou 2, caractérisée en ce que les porte-outils de broyage complémentaires l'un de l'autre ont sensiblement la forme d'un disque.
  4. Broyeuse selon la revendication 1 ou 2, caractérisée en ce que les porte-outils de broyage complémentaires l'un de l'autre ont sensiblement la forme d'un tronc de cône.
  5. Outil de broyage pour le broyage d'une matière fibreuse en suspension, notamment de papier et/ou de fibres de cellulose, dans des broyeuses comportant des porte-outils de broyage sensiblement à symétrie de révolution, déplaçables les uns par rapport aux autres et se faisant face, notamment sur un rotor et sur un stator, sur lesquels des outils de broyage peuvent être fixés deux par deux, de manière à former au moins une paire de surfaces de travail (7, 8) complémentaires, pour réaliser une fente de broyage (9) qui peut être traversée par la matière fibreuse, et la surface de travail (8) d'au moins un outil de broyage présentant, sur sa surface de base (13, 14) et sur son côté tourné, pendant le fonctionnement, vers la matière fibreuse à traiter, un grand nombre de reliefs (10, 10', 10", 11) en forme de baguettes dits lames, entre lesquels se trouvent des rainures (12) du type canal, ce qui fait que la matière fibreuse est au moins partiellement emmenée par celles-ci, de l'intérieur vers l'extérieur, et qu'il peut se produire un traitement mécanique de la matière fibreuse par le déplacement relatif de deux surfaces de travail (7, 8) complémentaires, caractérisé en ce qu'au moins trois reliefs (10, 10', 10", 11) en forme de baguettes de la surface de travail destinée au broyage des fibres, sont disposés les uns derrière les autres, dans la direction des canaux, les reliefs successifs (10, 10', 10", 11), considérés dans le sens d'écoulement de la matière fibreuse, présentant une distance avec un espace libre (a', a", a"') d'au moins 8 millimètres.
  6. Outil de broyage selon la revendication 5, caractérisé en ce que l'étendue radiale des reliefs (10, 10', 10", 11) en forme de baguettes, séparés par une distance avec l'espace libre (a', a", a"'), est au maximum de 100 millimètres.
  7. Outil de broyage selon la revendication 6, caractérisé en ce que l'étendue radiale des reliefs (10, 10', 10", 11) en forme de baguettes, séparés par une distance avec l'espace libre (a', a", a"'), est au maximum de 60 millimètres.
  8. Outil de broyage, selon la revendication 5, 6 ou 7, caractérisé en ce que en ce que l'étendue radiale des reliefs (10, 10', 10", 11) en forme de baguettes, séparés par une distance avec l'espace libre (a', a", a"'), est égale au maximum à vingt fois la largeur (b) des reliefs (10, 10', 10", 11).
  9. Outil de broyage selon la revendication 5, caractérisé en ce que les reliefs (10, 10', 10", 11) en forme de baguettes de la surface de travail (7, 8) s'étendent moins loin vers l'intérieur sur un espace libre (a) d'au moins 8 millimètres que la surface de base (13, 14) de l'outil de broyage.
  10. Outil de broyage selon l'une des revendications 5 à 9, caractérisé en ce que la surface de base a sensiblement la forme d'un cercle ou celle d'un segment de cercle.
  11. Outil de broyage selon l'une des revendications 5 à 9, caractérisé en ce que les surfaces de base ont sensiblement la forme d'un tronc de cône.
  12. Outil de broyage selon l'une des revendications 5 à 11, caractérisé en ce que la hauteur des reliefs (10, 10', 10", 11) en forme de baguettes au-dessus de la surface de base (13, 14) de l'outil de broyage, est comprise entre 2 et 20 millimètres.
  13. Outil de broyage selon la revendication 12, caractérisé en ce que la hauteur des reliefs (10, 10', 10", 11) en forme de baguettes au-dessus de la surface de base (13, 14) de l'outil de broyage est comprise entre 2 et 8 millimètres.
  14. Outil de broyage selon l'une des revendications 5 à 13, caractérisé en ce que la largeur (b) des reliefs (10, 10', 10", 11) en forme de baguettes de la surface de travail de l'outil de broyage, destinée au broyage des fibres, est comprise entre 2 et 30 millimètres.
  15. Outil de broyage selon l'une des revendications 5 à 14, caractérisé en ce que la largeur des rainures (12) du type canal entre les reliefs (10, 10', 10", 11) en forme de baguettes de la surface de travail de l'outil de broyage, destinée au broyage des fibres, est comprise entre 3 et 20 millimètres.
  16. Outil de broyage selon la revendication 10, caractérisé en ce que des reliefs (10, 10', 10", 11) en forme de baguettes, disposés les uns derrière les autres, de la surface de travail destinée au broyage des fibres, sont séparés par une rainure (16) qui s'étend sensiblement en forme de cercle autour du centre de la surface de base ou du cercle faisant partie du segment, et présente à peu près la même hauteur que les reliefs (10, 10', 10", 11) en forme de baguettes.
  17. Outil de broyage selon la revendication 10, caractérisé en ce que des reliefs (10, 10', 10", 11) en forme de baguettes, disposés les uns derrière les autres, de la surface de travail destinée au broyage des fibres, sont séparés par une découpe (17, 17') qui est sensiblement de forme polygonale et qui s'étend symétriquement par rapport au centre de la surface de base et présente à peu près la même hauteur que les reliefs (10, 10', 10", 11) en forme de baguettes.
  18. Outil de broyage selon la revendication 11, caractérisé en ce que des reliefs (10, 10', 10", 11) en forme de baguettes disposés les uns derrière les autres sont séparés par une découpe qui s'étend sensiblement en forme de cercle et symétriquement autour de la ligne médiane du tronc de cône, et présente à peu près la même hauteur que les reliefs (10, 10', 10", 11) en forme de baguettes.
  19. Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'espace libre (a, a', a", a"') est compris dans chaque cas entre 8 et 30 millimètres.
EP96102493A 1995-03-08 1996-02-20 Machine de raffinage et outil de raffinage pour le raffinage des matières fibreuses en suspension Expired - Lifetime EP0731210B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19508202A DE19508202A1 (de) 1995-03-08 1995-03-08 Mahlmaschine und Mahlwerkzeug zum Mahlen von suspendiertem Faserstoffmaterial
DE19508202 1995-03-08

Publications (3)

Publication Number Publication Date
EP0731210A2 EP0731210A2 (fr) 1996-09-11
EP0731210A3 EP0731210A3 (fr) 1998-06-10
EP0731210B1 true EP0731210B1 (fr) 2001-04-04

Family

ID=7756022

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96102493A Expired - Lifetime EP0731210B1 (fr) 1995-03-08 1996-02-20 Machine de raffinage et outil de raffinage pour le raffinage des matières fibreuses en suspension

Country Status (5)

Country Link
US (1) US5779168A (fr)
EP (1) EP0731210B1 (fr)
AT (1) ATE200321T1 (fr)
DE (2) DE19508202A1 (fr)
FI (1) FI961078A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2764997C1 (ru) * 2018-07-18 2022-01-24 Михаэль ЙАРОЛИМ Устройство и способ обработки волокон

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19754807C2 (de) * 1997-12-10 1999-11-18 Voith Sulzer Papiertech Patent Verfahren zur Herstellung von Garnituren für das mechanische Bearbeiten von suspendiertem Faserstoffmaterial sowie nach dem Verfahren hergestellte Garnitur
DE19923865A1 (de) 1999-05-25 2000-11-30 Voith Sulzer Papiertech Patent Verfahren zur Herstellung von Garnituren für das mechanische Bearbeiten von wasserhaltigem Papierfaserstoff
DE10258324B4 (de) * 2002-12-13 2008-03-27 Voith Patent Gmbh Verfahren zur Herstellung von Garnituren für das Mahlen von wasserhaltigem Papierfaserstoff
JP2007113138A (ja) * 2005-10-20 2007-05-10 Aikawa Iron Works Co Ltd リファイナ
US7472855B2 (en) * 2006-01-09 2009-01-06 Andritz Inc. Refiner stator plate having an outer row of teeth slanted to deflect pulp and method for pulp deflection during refining
US7300008B2 (en) 2006-01-09 2007-11-27 Andritz Inc. Tooth refiner plates with varying feeding angles and refining method
FI122889B (fi) * 2010-12-31 2012-08-31 Upm Kymmene Corp Menetelmä ja laitteisto nanoselluloosan valmistamiseksi
US20140054402A1 (en) * 2011-05-01 2014-02-27 Xingliang Zhu Rotary crushing pair with uneven surfaces

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
US2654295A (en) * 1951-05-02 1953-10-06 Sutherland Refiner Corp Refiner apparatus
US3910511A (en) * 1974-05-20 1975-10-07 Westvaco Corp Open discharge pulp refiner
SE7502787L (sv) * 1975-03-12 1976-09-13 Sca Development Ab Malelement
GB1541058A (en) * 1975-04-09 1979-02-21 Uddeholms Ab Pulp refining apparatus
US5200038A (en) * 1985-08-28 1993-04-06 International Paper Company Pulp refiner with fluidizing inlet
SU1390281A1 (ru) * 1986-05-30 1988-04-23 Пермский филиал Всесоюзного научно-исследовательского института целлюлозно-бумажной промышленности Гарнитура дисковой мельницы дл размола волокнистого материала
DE3628195A1 (de) * 1986-08-20 1988-02-25 Siemens Ag Refiner zur bearbeitung von fasermaterial

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2764997C1 (ru) * 2018-07-18 2022-01-24 Михаэль ЙАРОЛИМ Устройство и способ обработки волокон

Also Published As

Publication number Publication date
FI961078A0 (fi) 1996-03-07
US5779168A (en) 1998-07-14
DE19508202A1 (de) 1996-09-12
ATE200321T1 (de) 2001-04-15
FI961078A (fi) 1996-09-09
DE59606687D1 (de) 2001-05-10
EP0731210A3 (fr) 1998-06-10
EP0731210A2 (fr) 1996-09-11

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