DE102004039986A1 - Grinding aqueous, suspended paper fibers for paper production, by processing fibers in grinding zone between grinding tools, and supplying fluid flow of suspended fibers by pipelines leading through by grinding tools to grinding side - Google Patents
Grinding aqueous, suspended paper fibers for paper production, by processing fibers in grinding zone between grinding tools, and supplying fluid flow of suspended fibers by pipelines leading through by grinding tools to grinding side Download PDFInfo
- Publication number
- DE102004039986A1 DE102004039986A1 DE200410039986 DE102004039986A DE102004039986A1 DE 102004039986 A1 DE102004039986 A1 DE 102004039986A1 DE 200410039986 DE200410039986 DE 200410039986 DE 102004039986 A DE102004039986 A DE 102004039986A DE 102004039986 A1 DE102004039986 A1 DE 102004039986A1
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- DE
- Germany
- Prior art keywords
- grinding
- fibers
- suspended
- tools
- paper
- 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.)
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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
-
- 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
- D21D1/303—Double 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
- D21D1/20—Methods of refining
- D21D1/34—Other mills or refiners
- D21D1/38—Other mills or refiners with horizontal shaft
Landscapes
- Paper (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren zur Mahlung von Fasern gemäß dem Oberbegriff des Anspruchs 1.The This invention relates to a process for grinding fibers according to the generic term of claim 1.
Verfahren dieser Art werden seit langer Zeit eingesetzt, da die zur Papierherstellung benötigten Zellstofffasern erst durch eine Mahlbehandlung die gewünschten Eigenschaften erhalten. Auch aus Altpapier gewonnene Fasern müssen oft vor dem Wiedereinsatz gemahlen werden.method This type has been used for a long time, as for paper production needed pulp fibers only by a grinding treatment the desired properties. Even recovered paper fibers often have to be reused be ground.
Die meisten zur Mahlung eingesetzten Maschinen – sogenannte Refiner – haben mindestens einen Rotor und mindestens einen Stator mit entweder scheiben-, zylinder- oder kegelstumpfförmigen Flächen, auf denen sich die Mahlwerkzeuge (in der Regel lösbar befestigte Garnituren) befinden. Zwischen diesen Mahlwerkzeugen können sich Mahlspalte ausbilden, in denen die Fasern intensiv gemahlen werden. Weisen Mahlwerkzeuge an den Arbeitsflächen Stege und Nuten auf, spricht man von "Messer-Garnituren". Es gibt auch Mahlwerkzeuge, bei denen die dem Stoffstrom zugewandten Mahlflächen eine harte porige Struktur mit einer Rautiefe von einem Zehntel bis etwa drei Millimetern haben.The Most machines used for grinding - so-called refiner - have at least one rotor and at least one stator with either disc, cylinder or frustoconical surfaces on which the grinding tools (usually solvable fastened trimmings) are located. Between these grinding tools can form grinding gaps in which the fibers are ground intensively become. Have milling tools on the work surfaces webs and grooves on, speaks one of "knife sets". There are also grinding tools, at to which the material flow facing grinding surfaces a hard porous structure with a surface roughness of one-tenth to about three millimeters.
Bei Mahlverfahren dieser Art wird die gewünschte Mahlwirkung dadurch erzielt, dass die Mahlwerkzeuge mit einer relativ hohen Mahlkraft gegeneinander gedrückt werden, wobei in der Mahlzone eine Relativbewegung zwischen den zusammenwirkenden Mahlwerkzeugen stattfindet. Außerdem muss für einen Transport des Mahlgutes in die Mahlzone, durch die Mahlzone und wieder heraus gesorgt werden. Da es sich bei dem zu mahlenden Stoff um eine pumpfähige Suspension handelt (Konsistenz meist 3–6 %, maximal 10 %), kann dieser Transport mit hydraulischen Mitteln vollzogen werden, eventuell unterstützt durch die anliegenden Fliehkräfte. Die Transportwege liegen dabei überwiegend in den Nuten zwischen den Stegen, die also als Strömungskanäle dienen. Die Möglichkeiten, den internen Transport zwischen den Mahlwerkzeugen zu beeinflussen, sind im Allgemeinen gering. Auf Grund der Druckverhältnisse ist damit zu rechnen, dass eine schwer kontrollierbare Rückströmung von Fasersuspension, insbesondere durch die stillstehenden Nuten der Statorgarnituren auftritt. Es lässt sich daher in der Regel nicht verhindern, dass verschiedene Fasern unterschiedlich oft eine Mahlzone passieren, die an zwei sich begegnenden Messerkanten gebildet wird. Dadurch kann das Mahlergebnis uneinheitlich werden.at Milling process of this kind becomes the desired grinding action thereby achieved that the grinding tools with a relatively high grinding power pressed against each other be in the refining zone, a relative movement between the cooperating grinding tools takes place. In addition, for a Transport of the material to be ground into the grinding zone, through the grinding zone and be taken care of out again. Since it is the material to be ground about a pumpable Suspension acts (consistency usually 3-6%, maximum 10%), this can Transport be carried out by hydraulic means, possibly supports by the applied centrifugal forces. The transport routes are predominantly in the grooves between the bars, which serve as flow channels. The possibilities, to influence the internal transport between the grinding tools are generally low. Due to the pressure conditions is to be expected that a difficult controllable backflow of fiber suspension, in particular occurs due to the stagnant grooves of Statorgarnituren. It let yourself therefore, usually does not prevent different fibers different often pass through a grinding zone, which occurs at two encountered knife edges is formed. As a result, the grinding result can be uneven.
Der Erfindung liegt die Aufgabe zu Grunde, ein Mahlverfahren für Papierfasern zu schaffen, mit dem es möglich ist, alle Papierfasern sicherer auf bestimmte gewünschte Eigenschaften hin zu mahlen, also eine gleichmäßigere Mahlwirkung zu erzielen.Of the The invention is based on the object of a grinding process for paper fibers to create, with which it is possible All paper fibers are safer to certain desired properties to grind, so a more uniform grinding action to achieve.
Diese Aufgabe wird bei Verfahren dieser Art durch die im Anspruch 1 sowie im Anspruch 2 genannten Merkmale gelöst.These The object is in the method of this kind by the in claim 1 and solved in claim 2 mentioned features.
Die erfindungsgemäße Strömungsführung führt dazu, dass die zu mahlende Fasersuspension optimal in die Mahlzonen gelangen kann. Dabei können die Leitungen Öffnungen sein, die die Rückseite des Mahlwerkzeuges mit der Mahlseite verbinden und die vorzugsweise in eine Nut münden, die sich auf der Mahlseite zwischen Mahlleisten befindet. In einer solchen Anwendung muss die Rückseite des Mahlwerkzeuges von der Fasersuspension angeströmt werden, also entweder mit dem Zulauf oder dem Ablauf für die Fasersuspension in hydraulischer Verbindung stehen. Eine besonders gut definierte Strömung ergibt sich dann, wenn, sowohl für die Zuführung der Fasersuspension in die Mahlzone, als auch für die Abführung der Fasersuspension aus der Mahlzone heraus, Mahlwerkzeuge verwendet werden, die mit den genannten Leitungen ausgestattet sind.The flow guide according to the invention results in that the fiber suspension to be ground optimally reaches the grinding zones can. It can the pipes openings be the back of the Connect grinding tool with the grinding side and preferably into a groove, which is located on the grinding side between Mahlleisten. In a such application needs the back of the grinding tool are flown by the fiber suspension, So either with the inlet or the outlet for the fiber suspension in hydraulic connection stand. A particularly well defined flow arises when, as well as the feeder the fiber suspension in the grinding zone, as well as for the removal of the fiber suspension the grinding zone out, grinding tools are used with the equipped lines are equipped.
Besonders vorteilhaft lässt sich die Erfindung an Refinern durchführen, die z.B. der Mahlung von Papierfasern dienen und deren Mahlwerkzeuge eine konische Form aufweisen. Solche sogenannten Kegelrefiner sind an sich bekannt, sie haben oft einen Kegelwinkel von ca. 15° bis 45°. Wird nun die Versorgung der Mahlzonen mit Fasersuspension in der erfinderischen Weise durchgeführt, unterstützen Zentrifugalkräfte den Durchlauf zur Mahlzone hin und von dieser wieder weg. Die im Stand der Technik übliche axiale Strömungsführung der Fasersuspension durch die sich zwischen den Mahlleisten befindenden Nuten ist hier nicht erforderlich. Günstig am Kegelrefiner ist, dass sich die Mahlspaltverstellung, also die Bewegung der zusammen wirkenden Mahlwerkzeuge zueinander bzw. voneinander weg einfach durch Axialverschiebung erzielen lässt. Bei einem zylindrischen Refiner hingegen sind hierzu andere Mittel notwendig. Z.B. sind im Stand der Technik radial verschiebbare am Umfang des Zylinders verteilte Schalen bekannt, um nur dieses Beispiel zu nennen. Auch wenn das einen vermehrten Aufwand bedeutet, haben zylindrische Refiner unter Umständen größere Vorteile, da die Verteilung der Fasersuspension mit Hilfe des erfindungsgemäßen Verfahrens noch gleichmäßiger erfolgt. Das ist darauf zurück zu führen, dass die Zentrifugalkräfte keine Komponenten längs der Leitungen bzw. Mahlleisten haben. Der Transport der Fasersuspension erfolgt also gleichmäßig über die ganze Mahlfläche verteilt und wird dabei durch Zentrifugalkräfte optimal unterstützt.Especially advantageous the invention is carried out on refiners, e.g. the grind of paper fibers and their grinding tools serve a conical shape exhibit. Such so-called cone refiners are known per se, They often have a cone angle of about 15 ° to 45 °. Will now supply the Performed grinding zones with fiber suspension in the inventive manner, centrifugal forces support the Pass to the grinding zone and away from it again. The in the state the technique usual axial Flow guidance of Fiber suspension through which are located between the Mahlleisten Grooves is not required here. Conveniently located on the cone refiner, that the Mahlspaltverstellung, so the movement of the together acting grinding tools to each other or away from each other easy can be achieved by axial displacement. In a cylindrical Refiner, however, other means are necessary for this. For example, are in the prior art radially displaceable on the circumference of the cylinder distributed shells known, to name just this example. Even if which means an increased effort, have cylindrical refiner in certain circumstances greater benefits, since the distribution of the fiber suspension by means of the method according to the invention even more even. That's back to it respectively, that the centrifugal forces no components along have the lines or grinding bars. The transport of the fiber suspension So evenly over the whole grinding surface distributed and is optimally supported by centrifugal forces.
Die Erfindung wird erläutert an Hand von Zeichnungen. Dabei zeigen:The Invention will be explained on the basis of drawings. Showing:
Das
Besondere an der Erfindung liegt darin, dass die durch einen Zulauf
Prinzipiell
wird das Verfahren an einem konischen Refiner (s.
Bekanntlich
werden als Mahlgarnituren oft solche Mahlwerkzeuge verwendet, die
mit einer Vielzahl von Mahlleisten
Wird
das erfindungsgemäße Verfahren
mit einem Scheibenrefiner durchgeführt, kann eine Garnitur verwendet
werden, wie sie exemplarisch in
Bei einem Doppelscheibenrefiner können die Statorgarnituren so eingesetzt sein, dass sie die Fasersuspension axial in Richtung zum Rotor führen, der zwischen ihnen angeordnet ist und der auf beiden Seiten mit Rotorgarnituren versehen ist. Nachdem die Suspension die zwischen Rotor- und Statorgarnitur liegende Mahlzone passiert hat, wird sie durch die Leitungen der Rotorgarnitur hindurch und radial nach außen abgeführt. In bestimmten Fällen kann es auch genügen, die Rotorgarnituren konventionell, also ohne durchgehende Leitungen zu bauen. Dann würde die Suspension durch die Nuten im Stator axial zugeführt und nach der Mahlung durch den Rotor radial wieder abgeführt. Auch beim Scheibenrefiner ist es aber denkbar, die Fasersuspension im Rotor zu- und im Stator wieder abzuführen.at a double disc refiner can the stator sets be used so that they the fiber suspension axially lead in the direction of the rotor, the arranged between them and on both sides with rotor fittings is provided. After the suspension between the rotor and stator It has passed through the lines of the grinding zone Rotor set through and discharged radially outward. In certain cases can it's enough the rotor sets conventionally, so without continuous lines to build. Then would the suspension fed axially through the grooves in the stator and discharged radially after grinding by the rotor. Also When Scheibenrefiner but it is conceivable, the fiber suspension in Rotor in and out Remove the stator again.
Eine
weitere Möglichkeit
zeigt die
Claims (19)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410039986 DE102004039986A1 (en) | 2004-08-18 | 2004-08-18 | Grinding aqueous, suspended paper fibers for paper production, by processing fibers in grinding zone between grinding tools, and supplying fluid flow of suspended fibers by pipelines leading through by grinding tools to grinding side |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410039986 DE102004039986A1 (en) | 2004-08-18 | 2004-08-18 | Grinding aqueous, suspended paper fibers for paper production, by processing fibers in grinding zone between grinding tools, and supplying fluid flow of suspended fibers by pipelines leading through by grinding tools to grinding side |
Publications (1)
Publication Number | Publication Date |
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DE102004039986A1 true DE102004039986A1 (en) | 2007-12-20 |
Family
ID=38690111
Family Applications (1)
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DE200410039986 Withdrawn DE102004039986A1 (en) | 2004-08-18 | 2004-08-18 | Grinding aqueous, suspended paper fibers for paper production, by processing fibers in grinding zone between grinding tools, and supplying fluid flow of suspended fibers by pipelines leading through by grinding tools to grinding side |
Country Status (1)
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DE (1) | DE102004039986A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009153412A1 (en) | 2008-06-19 | 2009-12-23 | Metso Paper Inc. | Refiner and method for refining fibrous material |
WO2009153413A1 (en) * | 2008-06-19 | 2009-12-23 | Metso Paper Inc. | Refiner and method for refining fibrous material |
DE102008046592A1 (en) | 2008-09-10 | 2010-03-11 | Voith Patent Gmbh | Method for grinding aqueous suspended pulp fibers and grinding set for its implementation |
DE102008049336A1 (en) | 2008-09-29 | 2010-04-15 | Messer Austria Gmbh | Process and device for processing raw materials in the production of paper, cardboard or fibreboard |
WO2011001034A1 (en) * | 2009-07-03 | 2011-01-06 | Metso Paper, Inc. | Refiner |
DE102010029752A1 (en) | 2010-06-07 | 2011-12-08 | Voith Patent Gmbh | Method for milling cellulose fiber e.g. fresh cellulose fiber, in aqueous suspension, involves guiding partial flow of suspension to milling edges through hollow space and through openings formed between hollow space and milling edges |
CN103643580A (en) * | 2013-11-28 | 2014-03-19 | 四川永丰纸业股份有限公司 | Novel paper pulp fiber beating device |
CN106192524A (en) * | 2016-07-18 | 2016-12-07 | 天津科技大学 | A kind of biconial fiberizer of band internal diversion passage |
CN106245401A (en) * | 2015-06-10 | 2016-12-21 | 相川铁工株式会社 | The methods of beating of refiner and refiner |
EP3401439A1 (en) * | 2017-05-11 | 2018-11-14 | Valmet Technologies Oy | Blade segment for refiner |
AT525678A3 (en) * | 2021-11-25 | 2023-07-15 | Valmet Technologies Oy | REFINERS AND METHOD OF PROCESSING FIBER MATERIAL |
Citations (4)
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---|---|---|---|---|
DE864190C (en) * | 1947-07-27 | 1953-01-22 | Svenska Cellulosa Ab | Device for shredding and grinding paper pulp or other fibrous material |
DD236952A1 (en) * | 1985-05-07 | 1986-06-25 | Freiberg Papier Maschwerke | AXIAL DISC MUFFS FOR THE PREPARATION OF FIBER MATERIAL |
DE3700613A1 (en) * | 1986-12-11 | 1988-06-30 | Escher Wyss Gmbh | REFINER FOR TREATING A FIBROUS SUSPENSION FOR PAPER PRODUCTION |
US4955549A (en) * | 1986-08-07 | 1990-09-11 | Sunds Defibrator Aktiebolag | Apparatus for treatment of fibre suspensions |
-
2004
- 2004-08-18 DE DE200410039986 patent/DE102004039986A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE864190C (en) * | 1947-07-27 | 1953-01-22 | Svenska Cellulosa Ab | Device for shredding and grinding paper pulp or other fibrous material |
DD236952A1 (en) * | 1985-05-07 | 1986-06-25 | Freiberg Papier Maschwerke | AXIAL DISC MUFFS FOR THE PREPARATION OF FIBER MATERIAL |
US4955549A (en) * | 1986-08-07 | 1990-09-11 | Sunds Defibrator Aktiebolag | Apparatus for treatment of fibre suspensions |
DE3700613A1 (en) * | 1986-12-11 | 1988-06-30 | Escher Wyss Gmbh | REFINER FOR TREATING A FIBROUS SUSPENSION FOR PAPER PRODUCTION |
Cited By (37)
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JP2011524950A (en) * | 2008-06-19 | 2011-09-08 | メッツォ ペーパー インコーポレイテッド | Textile material beating machine and method |
EP2326767A4 (en) * | 2008-06-19 | 2011-11-30 | Metso Paper Inc | Refiner and method for refining fibrous material |
CN102066658A (en) * | 2008-06-19 | 2011-05-18 | 美卓造纸机械公司 | Refiner and method for refining fibrous material |
US8511595B2 (en) * | 2008-06-19 | 2013-08-20 | Metso Paper, Inc. | Refiner and method for refining fibrous material |
EP2326767A1 (en) * | 2008-06-19 | 2011-06-01 | Metso Paper, Inc. | Refiner and method for refining fibrous material |
CN102066658B (en) * | 2008-06-19 | 2014-05-07 | 美卓造纸机械公司 | Refiner and method for refining fibrous material |
EP2304101A1 (en) * | 2008-06-19 | 2011-04-06 | Metso Paper, Inc. | Refiner and method for refining fibrous material |
EP2304101A4 (en) * | 2008-06-19 | 2011-07-20 | Metso Paper Inc | Refiner and method for refining fibrous material |
US8573522B2 (en) * | 2008-06-19 | 2013-11-05 | Metso Paper, Inc. | Refiner and method for refining fibrous material |
CN102066657B (en) * | 2008-06-19 | 2014-03-26 | 美卓造纸机械公司 | Refiner and method for refining fibrous material |
US20110089273A1 (en) * | 2008-06-19 | 2011-04-21 | Metso Paper Inc. | Refiner and Method for Refining Fibrous Material |
US20110198423A1 (en) * | 2008-06-19 | 2011-08-18 | Metso Paper Inc. | Refiner and Method for Refining Fibrous Material |
WO2009153412A1 (en) | 2008-06-19 | 2009-12-23 | Metso Paper Inc. | Refiner and method for refining fibrous material |
WO2009153413A1 (en) * | 2008-06-19 | 2009-12-23 | Metso Paper Inc. | Refiner and method for refining fibrous material |
DE102008046592A1 (en) | 2008-09-10 | 2010-03-11 | Voith Patent Gmbh | Method for grinding aqueous suspended pulp fibers and grinding set for its implementation |
WO2010028711A1 (en) * | 2008-09-10 | 2010-03-18 | Voith Patent Gmbh | Method for refining cellulose fibers in aqueous suspension and refiner filling for performing the same |
DE102008049336A1 (en) | 2008-09-29 | 2010-04-15 | Messer Austria Gmbh | Process and device for processing raw materials in the production of paper, cardboard or fibreboard |
JP2012531529A (en) * | 2009-07-03 | 2012-12-10 | メッツォ ペーパー インコーポレイテッド | Purification equipment |
CN102472007B (en) * | 2009-07-03 | 2015-03-25 | 维美德技术有限公司 | Refiner |
CN102472007A (en) * | 2009-07-03 | 2012-05-23 | 美卓造纸机械公司 | Refiner |
EP2449173A1 (en) * | 2009-07-03 | 2012-05-09 | Metso Paper, Inc. | Refiner |
US8646708B2 (en) | 2009-07-03 | 2014-02-11 | Metso Paper, Inc. | Refiner with flow guide inside rotor or stator |
EP2449173A4 (en) * | 2009-07-03 | 2012-11-21 | Metso Paper Inc | Refiner |
WO2011001034A1 (en) * | 2009-07-03 | 2011-01-06 | Metso Paper, Inc. | Refiner |
DE102010029752A1 (en) | 2010-06-07 | 2011-12-08 | Voith Patent Gmbh | Method for milling cellulose fiber e.g. fresh cellulose fiber, in aqueous suspension, involves guiding partial flow of suspension to milling edges through hollow space and through openings formed between hollow space and milling edges |
CN103643580B (en) * | 2013-11-28 | 2016-04-13 | 四川永丰纸业股份有限公司 | Novel paper pulp fibres beating equipment |
CN103643580A (en) * | 2013-11-28 | 2014-03-19 | 四川永丰纸业股份有限公司 | Novel paper pulp fiber beating device |
CN106245401A (en) * | 2015-06-10 | 2016-12-21 | 相川铁工株式会社 | The methods of beating of refiner and refiner |
CN106245401B (en) * | 2015-06-10 | 2019-05-07 | 相川铁工株式会社 | The methods of beating and refiner of refiner |
US10385507B2 (en) | 2015-06-10 | 2019-08-20 | Aikawa Iron Works Co., Ltd. | Refiner beating method |
CN106192524A (en) * | 2016-07-18 | 2016-12-07 | 天津科技大学 | A kind of biconial fiberizer of band internal diversion passage |
CN106192524B (en) * | 2016-07-18 | 2018-01-23 | 天津科技大学 | A kind of biconial fiberizer with internal diversion passage |
EP3401439A1 (en) * | 2017-05-11 | 2018-11-14 | Valmet Technologies Oy | Blade segment for refiner |
CN108855461A (en) * | 2017-05-11 | 2018-11-23 | 维美德技术有限公司 | Blade section for refiner |
CN108855461B (en) * | 2017-05-11 | 2020-10-13 | 维美德技术有限公司 | Blade segment for refiner |
US11142869B2 (en) | 2017-05-11 | 2021-10-12 | Valmet Technologies, Inc. | Blade segment for refiner |
AT525678A3 (en) * | 2021-11-25 | 2023-07-15 | Valmet Technologies Oy | REFINERS AND METHOD OF PROCESSING FIBER MATERIAL |
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