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EP1122356A2 - Refiner - Google Patents

Refiner Download PDF

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Publication number
EP1122356A2
EP1122356A2 EP01101560A EP01101560A EP1122356A2 EP 1122356 A2 EP1122356 A2 EP 1122356A2 EP 01101560 A EP01101560 A EP 01101560A EP 01101560 A EP01101560 A EP 01101560A EP 1122356 A2 EP1122356 A2 EP 1122356A2
Authority
EP
European Patent Office
Prior art keywords
rotor
refiner
feed channel
stock feed
refiner according
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.)
Granted
Application number
EP01101560A
Other languages
German (de)
French (fr)
Other versions
EP1122356B1 (en
EP1122356A3 (en
Inventor
Peter Dipl.Ing. Antensteiner
Helmuth Dipl.Ing.Dr. Gabl
Andreas Dipl.Ing.Dr. Gorton-Hülgerth
Gerald Ing. Schadler
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.)
Andritz AG
Original Assignee
Andritz AG
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 Andritz AG filed Critical Andritz AG
Priority to AT01101560T priority Critical patent/ATE302874T1/en
Publication of EP1122356A2 publication Critical patent/EP1122356A2/en
Publication of EP1122356A3 publication Critical patent/EP1122356A3/en
Application granted granted Critical
Publication of EP1122356B1 publication Critical patent/EP1122356B1/en
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
    • D21D1/34—Other mills or refiners
    • D21D1/38—Other mills or refiners with horizontal shaft
    • 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

Definitions

  • the invention relates to a refiner consisting of a rotor and stator with an inlet pipe and a cylindrical or conical grinding gap between rotor and stator.
  • the aim of the invention is therefore to address the disadvantages of the known cylinder and To bypass cone refiners in order to subsequently increase high throughputs enable.
  • the invention is therefore characterized in that the stock feed channel extends from the inlet pipe to the grinding gap in the radial direction.
  • the material supplied is accelerated in the circumferential direction by the rotation of the rotor, which causes an increase in pressure in the liquid. This pressure build-up on the one hand saves the feed pump, on the other hand there is a good rotationally symmetrical flow.
  • An advantageous embodiment of the invention is characterized in that the stock feed channel is rotationally symmetrical. This results in a uniform and rotationally symmetrical flow against the grinding gaps.
  • An advantageous development of the invention is characterized in that that the inlet pipe connected to the stock feed channel has an axis has, which coincides with the axis of the rotor. In this way the fabric is fed directly into the axis of the refiner, causing the fabric on the one hand, already partially in the tube before entering the stock feed channel is accelerated and on the other hand an even distribution of the substance is effected.
  • a favorable further development of the invention is characterized in that that a disc is provided between the inlet pipe and grinding gap, the limited the stock feed channel. If the material is fed outside of the Axis, the pulley deflects the fabric on the shaft and rotationally symmetrical outwards, here between the disc and Rotor end face accelerating the liquid radially outward takes place and then the liquid in the grinding gap evenly flows in distributed.
  • a favorable embodiment of the invention is characterized in that that a cylindrical rotor is provided. It can also be a Cone rotor expanding the direction of flow of the material or alternatively conical rotor tapering in the direction of flow of the material be provided. Depending on requirements, the suitable form of the Grinding gap can be used.
  • An advantageous development of the invention is characterized in that that a double rotor is provided.
  • a double rotor in which the Rotor both cylindrical and conical (expanding cone or tapered cone) can be a large one Throughput can be achieved, also a uniform rotationally symmetrical flow to the grinding gaps takes place.
  • a favorable further development of the invention is characterized in that that the stock feed channel is arranged between the two rotors. Especially when using an inlet pipe that is in the axis of a The fabric can be fed into the center of the refiner and there through the rotation to the outside, resulting in a leads to a corresponding rise in pressure. The fabric then becomes centered inserted into the corresponding grinding gap, whereby another Uniformization of the feed is achieved.
  • An advantageous embodiment of the invention is characterized in that that a cylindrical and a conical grinding gap are lined up are.
  • the series of a cylindrical and a conical Grinding gap can either be on a rotor or using two successive different rotors can be achieved. In both cases the sequence of the sequence is arbitrary and only depends on the material properties to be achieved.
  • a favorable further development of the invention is characterized in that that internals in the stock feed channel and / or inlet pipe, in particular Blades, are arranged. Through such installations in the inlet pipe or in the stock feed channel, the acceleration of the liquid can also increase the effects of wall friction are significantly increased.
  • FIG. 2 a variant with an axial material feed
  • FIG. 2 a Variant with lateral material feed
  • FIG. 3 an analog variant to FIG. 2 with bevel rotor
  • Fig. 4 shows another variant with bevel rotor
  • Fig. 5 one Variant with cylindrical double rotor and axial material feed
  • Fig. 6 and Fig. 7 shows a variant with double cone rotors both tapering and expanding and axial material feed
  • Fig. 8 shows a variant with a cylindrical Double rotor and lateral material feed
  • Fig. 9 shows a variant with an axial Feed and double rotor consisting of cylinder and cone rotor
  • FIG. 14 shows a section along line A-A in FIG. 5 represents.
  • FIG. 1 shows a refiner according to the invention with inlet 1, Fabric feed channel 7, grinding zone 3, outlet 4, rotor 5 and stator 6.
  • the fabric flows here through the inlet 1, which is arranged in the axis of the rotor 5 is central to the refiner.
  • In the acceleration zone 7 between the rotor 5 and housing 6 is made by wall friction or by special internals (see Fig. 14) an acceleration of the material in the circumferential direction and thereby the pressure build-up. Then the fabric flows through the Grinding zone 3 and leaves the refiner through the outlet 4.
  • the housing 6 consists here of an axially displaceable ring on which a wedge 10 is attached.
  • the grinding plates are with another wedge 11 connected, a setting by the displacement of the ring 9 the grinding gap 3 takes place.
  • Fig. 2 shows an analog refiner, the feed here done laterally.
  • the fabric flows through the one on the side Inlet 1 in the refiner and through a disc 8 to the shaft redirected. There it is caused by wall friction or by special Built-in accelerates and enters the stock feed channel 7 between Disc 8 and rotor 5, channel 7 acting as an acceleration zone. In this acceleration zone there is a further acceleration in Circumferential direction and thus the required pressure build-up.
  • the Pressure build-up is in the range of 1.5 to 2 bar.
  • the material flows through the grinding zone 3 and leaves the Refiner through outlet 4 opposite inlet 1. Also here the grinding gap 3 is adjusted by the sliding arranged wedges 10 and 11.
  • Fig. 3 and Fig. 4 show analog refiners to Fig. 2, with the same 3 is a conical refiner with an expanding Cone cone and in Fig. 4 a conical or cone refiner with one tapered cone is shown.
  • the fabric flows through the as Hollow shaft formed inlet 1 through the rotor 5 in the middle arranged fabric feed channel 2.
  • the pressure builds up.
  • the grinding gap 23 is adjusted also here again by means of an axially displaceable ring 9 the possibility of a wedge 10 acting over the entire length or with the grinding plates connected counterpart 11 is here in wedge 10a and wedge 10b split wedge 10 shown.
  • the counterpart 11 has corresponding wedge-shaped surfaces. This is a better and more even force distribution can be achieved.
  • FIG. 6 and 7 represent a refiner constructed analogously to FIG. 5 Double cone, the cone shape from the stock feed channel 2 seen to the outlet 4a or 4b widens in Fig. 6 and in Fig. 7th is tapered.
  • the mode of operation corresponds to the function of that shown in FIG. 5 Double cylinder refiner.
  • FIG. 8 A further possibility is the embodiment according to FIG. 8, wherein here the fabric on both sides through the inlet 1a or 1b towards the shaft fed and deflected through the disc 8 into the stock feed channel 7 becomes. From there, the material enters the grinding gap 3 on both sides and becomes central discharged through the outlet 4.
  • the same fabric guide is also with one Double cone possible, this from the outer inlet to the center Outlet as an either expanding or tapering cone can be provided.
  • FIG. 9 shows the example of a refiner with a double rotor and as a hollow shaft trained axial inlet 1 the combination of cylindrical and conical grinding zones.
  • the Inflow also on both sides through an inlet with a deflection done by a disc and the outlet be arranged centrally.
  • FIG. 10 to 13 represent the combination of cylindrical and conical grinding zones on a rotor.
  • the flow can either first through the cylinder (Fig. 11, Fig. 12) or first through a cone part (Fig. 10, Fig. 13), the cone either expanding (Fig. 10, Fig. 12) or tapering (Fig. 11, Fig. 13) is.
  • the definition of widening or tapering for the cone is always made in the direction of flow of the substance.
  • Fig. 14 shows a section along line A-A in Fig. 5.
  • Internals 12 which are also referred to as blades or wings can. These internals 12 divide the stock feed channel 2 into individual ones Stock feed channels 2 'through which the pulp suspension from central inlet 1 is led to the outside grinding gap 3. By these internals 12, here as wedges made of full material are trained, the stock suspension is additionally accelerated and it there is an increase in pressure.
  • the internals 12 can also be hollow be or rounded on its surface, i.e. Shovel-shaped his.
  • Such internals 12 can also in the fabric channel 7 e.g. the 1 - 4, or 8, 10 - 13 as well as the Fig. 5 analog versions of Figs. 6, 7 and 9 are used.

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

Abstract

Die Erfindung betrifft einen Refiner bestehend aus einem Rotor und einem Stator mit einem Einlaßrohr 1 und einem zylinder- oder kegelförmigen Mahlspalt 3 zwischen Rotor 5 und Stator 6. Sie ist vornehmlich dadurch gekennzeichnet, daß sich der Stoffzufuhrkanal 2,7 vom Einlaßrohr 1 zum Mahlspalt 3 hin in radialer Richtung erstreckt. <IMAGE>The invention relates to a refiner consisting of a rotor and a stator with an inlet tube 1 and a cylindrical or conical grinding gap 3 between the rotor 5 and the stator 6. It is primarily characterized in that the stock feed channel 2,7 extends from the inlet tube 1 to the grinding gap 3 extends in the radial direction. <IMAGE>

Description

Die Erfindung betrifft einen Refiner bestehend aus einem Rotor und Stator mit einem Einlaßrohr und einem zylinder- oder kegelförmigen Mahlspalt zwischen Rotor und Stator.The invention relates to a refiner consisting of a rotor and stator with an inlet pipe and a cylindrical or conical grinding gap between rotor and stator.

Zur Zeit werden Refiner meist in der Bauform der (Doppel-) Scheibe oder des Kegels ausgeführt. Die Nachteile des Doppelscheibenrefiners sind die sich verändernde relative Geschwindigkeit entlang der Mahlzone, eine relativ hohe Leerlaufleistung und besonders bei niedrigen Durchsätzen Probleme mit der Zentrierung des Rotors. Ein bedeutender Nachteil des bekannten Kegelrefiners ist die schlechte Pumpwirkung. Daraus folgen Durchsatzprobleme und in weiterer Folge die Notwendigkeit, die Nuten in der Mahlzone zu vergrößern, was eine Verringerung der Kantenlänge bewirkt. Als weitere Nachteile können die relative Verschiebung der Messer beim Anstellen zueinander, die Notwendigkeit einer robusten Bauweise aufgrund der auftretenden Lagerkräfte und der Schwierigkeiten beim Garniturwechsel gesehen werden, die zu hohen Herstellungskosten führen. Durch einen Zylinderrefiner, wie er z.B. aus der US 5,813,618 bekannt ist, können viele dieser Nachteile vermieden werden, doch sind ähnlich wie beim Kegelrefiner Durchsatzprobleme zu erwarten.At the moment refiners are mostly in the form of the (double) disc or of the cone. The disadvantages of the double disc refiner are changing relative speed along the grinding zone, a relatively high idle power and especially at low throughputs Problems with the centering of the rotor. A major disadvantage of the known cone refiner is the poor pumping effect. Follow from that Throughput problems and, subsequently, the need to insert the grooves enlarge the grinding zone, reducing the edge length causes. Another disadvantage can be the relative displacement of the Knives when queuing to each other, the need for a robust Construction due to the bearing forces and the difficulties can be seen when changing the set, the high manufacturing costs to lead. With a cylinder refiner, e.g. from US 5,813,618 is known, many of these disadvantages can be avoided, but are similar to expected throughput problems with the cone refiner.

Ziel der Erfindung ist es daher, die Nachteile der bekannten Zylinder- und Kegelrefiner zu umgehen um auch in weiterer Folge hohe Durchsätze zu ermöglichen.The aim of the invention is therefore to address the disadvantages of the known cylinder and To bypass cone refiners in order to subsequently increase high throughputs enable.

Die Erfindung ist daher dadurch gekennzeichnet, daß sich der Stoffzufuhrkanal vom Einlaßrohr zum Mahlspalt hin in radialer Richtung erstreckt. Der zugeführte Stoff wird hier durch die Rotation des Rotors in Umfangsrichtung beschleunigt, wodurch ein Druckanstieg in der Flüssigkeit bewirkt wird. Durch diesen Druckaufbau kann man einerseits die Zuführpumpe einsparen andererseits erfolgt dadurch eine gute rotationssymetrische Anströmung.
Eine vorteilhafte Ausgestaltung der Erfindung ist dadurch gekennzeichnet, daß der Stoffzufuhrkanal rotationssymetrisch ausgebildet ist. Dadurch ergibt sich eine gleichmäßige und rotationssymetrische Anströmung der Mahlspalte.The invention is therefore characterized in that the stock feed channel extends from the inlet pipe to the grinding gap in the radial direction. The material supplied is accelerated in the circumferential direction by the rotation of the rotor, which causes an increase in pressure in the liquid. This pressure build-up on the one hand saves the feed pump, on the other hand there is a good rotationally symmetrical flow.
An advantageous embodiment of the invention is characterized in that the stock feed channel is rotationally symmetrical. This results in a uniform and rotationally symmetrical flow against the grinding gaps.

Eine vorteilhafte Weiterbildung der Erfindung ist dadurch gekennzeichnet, daß das mit dem Stoffzufuhrkanal verbundene Einlaßrohr eine Achse aufweist, die mit der Achse des Rotors zusammenfällt. Auf diese Weise erfolgt die Stoffzufuhr direkt in der Achse des Refiners, wodurch der Stoff einerseits bereits teilweise im Rohr vor Eintritt in den Stoffzufuhrkanal beschleunigt wird und andererseits eine noch gleichmäßigere Verteilung des Stoffes bewirkt wird.An advantageous development of the invention is characterized in that that the inlet pipe connected to the stock feed channel has an axis has, which coincides with the axis of the rotor. In this way the fabric is fed directly into the axis of the refiner, causing the fabric on the one hand, already partially in the tube before entering the stock feed channel is accelerated and on the other hand an even distribution of the substance is effected.

Eine günstige Weiterbildung der Erfindung ist dadurch gekennzeichnet, daß zwischen Einlaßrohr und Mahlspalt eine Scheibe vorgesehen ist, die den Stoffzufuhrkanal begrenzt. Erfolgt die Stoffzufuhr außerhalb der Achse, so wird durch die Scheibe der Stoff an der Welle umgelenkt und rotationssymetrisch nach außen geführt, wobei hier zwischen Scheibe und Rotorstirnfläche die Beschleunigung der Flüssigkeit radial nach außen erfolgt und anschließend die Flüssigkeit in den Mahlspalt gleichmäßig verteilt einströmt.A favorable further development of the invention is characterized in that that a disc is provided between the inlet pipe and grinding gap, the limited the stock feed channel. If the material is fed outside of the Axis, the pulley deflects the fabric on the shaft and rotationally symmetrical outwards, here between the disc and Rotor end face accelerating the liquid radially outward takes place and then the liquid in the grinding gap evenly flows in distributed.

Eine günstige Ausgestaltung der Erfindung ist dadurch gekennzeichnet, daß ein zylindrischer Rotor vorgesehen ist. Es kann auch ein sich in Strömungsrichtung des Stoffes erweiternder Kegelrotor oder alternativ ein sich in Strömungsrichtung des Stoffes verjüngender Kegelrotor vorgesehen sein. Je nach Erfordernis kann somit die geeignete Form des Mahlspalts eingesetzt werden.A favorable embodiment of the invention is characterized in that that a cylindrical rotor is provided. It can also be a Cone rotor expanding the direction of flow of the material or alternatively conical rotor tapering in the direction of flow of the material be provided. Depending on requirements, the suitable form of the Grinding gap can be used.

Eine vorteilhafte Weiterbildung der Erfindung ist dadurch gekennzeichnet, daß ein Doppelrotor vorgesehen ist. Bei einem Doppelrotor, bei dem der Rotor sowohl zylinderförmig als auch kegelförmig (erweiternder Konus bzw. verjüngender Konus) ausgeführt sein kann, kann ein großer Durchsatz erzielt werden, wobei ebenfalls eine gleichmäßige rotationssymetrische Anströmung der Mahlspalte erfolgt.An advantageous development of the invention is characterized in that that a double rotor is provided. In the case of a double rotor in which the Rotor both cylindrical and conical (expanding cone or tapered cone) can be a large one Throughput can be achieved, also a uniform rotationally symmetrical flow to the grinding gaps takes place.

Eine günstige Weiterbildung der Erfindung ist dadurch gekennzeichnet, daß der Stoffzufuhrkanal zwischen den beiden Rotoren angeordnet ist. Speziell bei Verwendung eines Einlaßrohrs, das sich in der Achse eines Rotors befindet kann der Stoff in die Mitte des Refiners zugeführt und dort durch die Rotation nach außen geführt werden, was zu einem entsprechenden Druckanstieg führt. In weitere Folge wird der Stoff mittig in den entsprechenden Mahlspalt eingeführt, wodurch eine weitere Vergleichmäßigung der Stoffzufuhr erreicht wird.A favorable further development of the invention is characterized in that that the stock feed channel is arranged between the two rotors. Especially when using an inlet pipe that is in the axis of a The fabric can be fed into the center of the refiner and there through the rotation to the outside, resulting in a leads to a corresponding rise in pressure. The fabric then becomes centered inserted into the corresponding grinding gap, whereby another Uniformization of the feed is achieved.

Eine vorteilhafte Ausgestaltung der Erfindung ist dadurch gekennzeichnet, daß ein zylindrischer und ein kegelförmiger Mahlspalt aneinandergereiht sind. Die Aneinanderreihung eines zylindrischen und eines kegelförmigen Mahlspaltes kann entweder auf einem Rotor oder unter Verwendung von zwei hintereinanderliegenden unterschiedlichen Rotoren erreicht werden. In beiden Fällen ist die Reihenfolge der Aneinanderreihung beliebig und nur von den zu erzielenden Stoffeigenschaften abhängig.An advantageous embodiment of the invention is characterized in that that a cylindrical and a conical grinding gap are lined up are. The series of a cylindrical and a conical Grinding gap can either be on a rotor or using two successive different rotors can be achieved. In both cases the sequence of the sequence is arbitrary and only depends on the material properties to be achieved.

Eine günstige Weiterbildung der Erfindung ist dadurch gekennzeichnet, daß im Stoffzufuhrkanal und/oder Einlaßrohr Einbauten, insbesondere Schaufeln, angeordnet sind. Durch derartige Einbauten im Einlaßrohr oder im Stoffzufuhrkanal kann die Beschleunigung der Flüssigkeit zusätzlich zu den Effekten der Wandreibung noch wesentlich verstärkt werden.A favorable further development of the invention is characterized in that that internals in the stock feed channel and / or inlet pipe, in particular Blades, are arranged. Through such installations in the inlet pipe or in the stock feed channel, the acceleration of the liquid can also increase the effects of wall friction are significantly increased.

Im folgenden wird die Erfindung an Hand der Zeichnungen beispielhaft beschrieben, wobei Fig. 1 eine Variante mit axialer Stoffzufuhr, Fig. 2 eine Variante mit seitlicher Stoffzufuhr, Fig. 3 eine analoge Variante zu Fig. 2 mit Kegelrotor, Fig. 4 eine weitere Variante mit Kegelrotor, Fig. 5 eine Variante mit zylindrischem Doppelrotor und axialer Stoffzufuhr, Fig. 6 und Fig. 7 eine Variante mit Doppelkegelrotoren sowohl verjüngend als auch erweiternd und axialer Stoffzufuhr, Fig. 8 eine Variante mit zylindrischem Doppelrotor und seitlicher Stoffzufuhr, Fig. 9 eine Variante mit axialer Stoffzufuhr und Doppelrotor bestehend aus Zylinder- und Kegelrotor, Fig. 10, Fig. 11, Fig. 12, Fig. 13 Varianten mit unterschiedlicher Hintereinanderschaltung von zylindrischen und kegelförmigen Mahlspalt auf einem Rotor und Fig. 14 einen Schnitt gemäß Linie A-A in Fig. 5 darstellt.In the following the invention with reference to the drawings is an example 1, a variant with an axial material feed, FIG. 2 a Variant with lateral material feed, FIG. 3 an analog variant to FIG. 2 with bevel rotor, Fig. 4 shows another variant with bevel rotor, Fig. 5 one Variant with cylindrical double rotor and axial material feed, Fig. 6 and Fig. 7 shows a variant with double cone rotors both tapering and expanding and axial material feed, Fig. 8 shows a variant with a cylindrical Double rotor and lateral material feed, Fig. 9 shows a variant with an axial Feed and double rotor consisting of cylinder and cone rotor, Fig. 10, Fig. 11, Fig. 12, Fig. 13 variants with different Series connection of cylindrical and conical grinding gap on a rotor and FIG. 14 shows a section along line A-A in FIG. 5 represents.

Fig. 1 zeigt einen erfindungsgemäßen Refiner mit Einlaß 1, Stoffzufuhrkanal 7, Mahlzone 3, Auslauf 4, Rotor 5 und Stator 6. Der Stoff strömt hier durch den Einlaß 1, der in der Achse des Rotors 5 angeordnet ist, zentral in den Refiner. In der Beschleunigungszone 7 zwischen Rotor 5 und Gehäuse 6 erfolgt durch Wandreibung oder durch spezielle Einbauten (siehe Fig. 14) eine Beschleunigung des Stoffes in Umfangsrichtung und dadurch der Druckaufbau. Anschließend fließt der Stoff durch die Mahlzone 3 und verläßt den Refiner durch den Auslaß 4. Das Gehäuse 6 besteht hier aus einem in axialer Richtung verschiebbaren Ring, auf dem ein Keil 10 befestigt ist. Die Mahlplatten sind mit einem weiteren Keil 11 verbunden, wobei durch die Verschiebung des Ringes 9 eine Einstellung des Mahlspalts 3 erfolgt. 1 shows a refiner according to the invention with inlet 1, Fabric feed channel 7, grinding zone 3, outlet 4, rotor 5 and stator 6. The fabric flows here through the inlet 1, which is arranged in the axis of the rotor 5 is central to the refiner. In the acceleration zone 7 between the rotor 5 and housing 6 is made by wall friction or by special internals (see Fig. 14) an acceleration of the material in the circumferential direction and thereby the pressure build-up. Then the fabric flows through the Grinding zone 3 and leaves the refiner through the outlet 4. The housing 6 consists here of an axially displaceable ring on which a wedge 10 is attached. The grinding plates are with another wedge 11 connected, a setting by the displacement of the ring 9 the grinding gap 3 takes place.

Fig. 2 zeigt einen analog aufgebauten Refiner, wobei hier die Stoffzufuhr seitlich erfolgt. Der Stoff strömt dabei durch den seitlich angeordneten Einlaß 1 in den Refiner und wird durch eine Scheibe 8 zur Welle umgelenkt. Dort wird er durch die Wandreibung oder durch spezielle Einbauten beschleunigt und tritt in den Stoffzufuhrkanal 7 zwischen Scheibe 8 und Rotor 5 ein, wobei Kanal 7 als Beschleunigungszone wirkt. In dieser Beschleunigungszone erfolgt eine weitere Beschleunigung in Umfangsrichtung und dadurch der erforderliche Druckaufbau. Der Druckaufbau bewegt sich dabei im Bereich von 1,5 bis 2 bar. Anschließend fließt der Stoff durch die Mahlzone 3 und verläßt den Refiner durch den dem Einlaß 1 gegenüberliegenden Auslaß 4. Auch hier erfolgt die Einstellung des Mahlspaltes 3 durch die verschiebbar angeordneten Keile 10 und 11.Fig. 2 shows an analog refiner, the feed here done laterally. The fabric flows through the one on the side Inlet 1 in the refiner and through a disc 8 to the shaft redirected. There it is caused by wall friction or by special Built-in accelerates and enters the stock feed channel 7 between Disc 8 and rotor 5, channel 7 acting as an acceleration zone. In this acceleration zone there is a further acceleration in Circumferential direction and thus the required pressure build-up. The Pressure build-up is in the range of 1.5 to 2 bar. Then the material flows through the grinding zone 3 and leaves the Refiner through outlet 4 opposite inlet 1. Also here the grinding gap 3 is adjusted by the sliding arranged wedges 10 and 11.

Fig. 3 und Fig. 4 zeigen analoge Refiner zu Fig. 2, wobei bei gleicher Stofführung in Fig. 3 ein konischer Refiner mit einem sich erweiternden Kegelkonus und in Fig. 4 ein konischer oder Kegelrefiner mit einem sich verjüngendem Konus dargestellt ist.Fig. 3 and Fig. 4 show analog refiners to Fig. 2, with the same 3 is a conical refiner with an expanding Cone cone and in Fig. 4 a conical or cone refiner with one tapered cone is shown.

In Fig. 5 ist die Funktionsweise eines Refiners mit Doppelrotor dargestellt. In der hier vorliegenden Ausführung strömt der Stoff durch den als Hohlwelle ausgebildeten Einlaß 1 durch den Rotor 5 zum in der Mitte angeordneten Stoffzufuhrkanal 2. Durch die Beschleunigung des Stoffes in Umfangsrichtung in der Hohlwelle des Einlasses 1 und im Stoffzufuhrkanal 2 erfolgt hier der Druckaufbau. Anschließend strömt der Stoff durch die Mahlzone nach außen und verläßt den Refiner durch die beiden Auslässe 4a bzw. 4b. Die Verstellung des Mahlspaltes 23 erfolgt auch hier wiederum mittels eines axial verschiebbaren Ringes 9. Neben der Möglichkeit eines über die gesamte Länge wirkenden Keils 10 bzw. mit den Mahlplatten verbundenen Gegenstück 11 ist hier ein in Keil 10a und Keil 10b aufgeteilter Keil 10 dargestellt. Das Gegenstück 11 weist entsprechende keilförmige Flächen auf. Dadurch ist eine bessere und gleichmäßigere Kraftverteilung erzielbar.5 shows the operation of a refiner with a double rotor. In the present embodiment, the fabric flows through the as Hollow shaft formed inlet 1 through the rotor 5 in the middle arranged fabric feed channel 2. By accelerating the fabric in the circumferential direction in the hollow shaft of the inlet 1 and in The feed channel 2 is where the pressure builds up. Then the flows Fabric out through the grinding zone and leaves the refiner through the two outlets 4a and 4b. The grinding gap 23 is adjusted also here again by means of an axially displaceable ring 9 the possibility of a wedge 10 acting over the entire length or with the grinding plates connected counterpart 11 is here in wedge 10a and wedge 10b split wedge 10 shown. The counterpart 11 has corresponding wedge-shaped surfaces. This is a better and more even force distribution can be achieved.

Die Fig. 6 und 7 stellen einen zu Fig. 5 analog aufgebauten Refiner mit Doppelkegel dar, wobei die Kegelform vom Stoffzufuhrkanal 2 aus gesehen zum Auslaß 4a bzw. 4b sich in Fig. 6 erweitert und in Fig. 7 verjüngend ausgebildet ist.6 and 7 represent a refiner constructed analogously to FIG. 5 Double cone, the cone shape from the stock feed channel 2 seen to the outlet 4a or 4b widens in Fig. 6 and in Fig. 7th is tapered.

Die Funktionsweise entspricht der Funktion des in Fig. 5 dargestellten Doppelzylinderrefiners.The mode of operation corresponds to the function of that shown in FIG. 5 Double cylinder refiner.

Eine weitere Möglichkeit stellt die Ausführung gemäß Fig. 8 dar, wobei hier der Stoff beidseitig durch den Einlaß 1a bzw. 1b in Richtung Welle zugeführt und durch die Scheibe 8 in den Stoffzufuhrkanal 7 umgelenkt wird. Von dort tritt der Stoff beidseitig in den Mahlspalt 3 und wird zentral über den Auslaß 4 abgeführt. Die gleiche Stofführung ist auch mit einem Doppelkegel möglich, wobei dieser vom äußeren Einlaß zum mittigen Auslaß hin als ein sich entweder erweiternder oder verjüngender Konus vorgesehen sein kann.A further possibility is the embodiment according to FIG. 8, wherein here the fabric on both sides through the inlet 1a or 1b towards the shaft fed and deflected through the disc 8 into the stock feed channel 7 becomes. From there, the material enters the grinding gap 3 on both sides and becomes central discharged through the outlet 4. The same fabric guide is also with one Double cone possible, this from the outer inlet to the center Outlet as an either expanding or tapering cone can be provided.

Fig. 9 zeigt am Beispiel eines Refiners mit Doppelrotor und als Hohlwelle ausgebildetem axialen Einlaß 1 die Kombination von zylindrischen und kegelförmigen Mahlzonen. Neben der dargestellten Variante kann die Anströmung ebenfalls beidseitig durch einen Einlaß mit einer Umlenkung durch eine Scheibe erfolgen und der Auslaß zentral angeordnet sein.9 shows the example of a refiner with a double rotor and as a hollow shaft trained axial inlet 1 the combination of cylindrical and conical grinding zones. In addition to the variant shown, the Inflow also on both sides through an inlet with a deflection done by a disc and the outlet be arranged centrally.

Die Fig. 10 bis 13 stellen die Kombination von zylindrischen und kegelförmigen Mahlzonen auf einem Rotor dar. Dabei kann die Strömung entweder zuerst durch den Zylinder- (Fig. 11, Fig. 12) oder zuerst durch einen Kegelteil (Fig. 10, Fig. 13) erfolgen, wobei der Kegel entweder erweiternd (Fig. 10, Fig. 12) oder verjüngend (Fig. 11, Fig. 13) ausgebildet ist. Die Definition erweiternd oder verjüngend für den Kegel erfolgt immer in Strömungsrichtung des Stoffes.10 to 13 represent the combination of cylindrical and conical grinding zones on a rotor. The flow can either first through the cylinder (Fig. 11, Fig. 12) or first through a cone part (Fig. 10, Fig. 13), the cone either expanding (Fig. 10, Fig. 12) or tapering (Fig. 11, Fig. 13) is. The definition of widening or tapering for the cone is always made in the direction of flow of the substance.

Fig. 14 zeigt einen Schnitt gemäß Linie A-A in Fig. 5. Man erkennt hier die Einbauten 12, die auch als Schaufeln oder Flügel bezeichnet werden können. Diese Einbauten 12 teilen den Stoffzufuhrkanal 2 in einzelne Stoffzufuhrkanäle 2' auf, durch die die Faserstoffsuspension vom zentralen Einlass 1 zum außen liegenden Mahlspalt 3 geführt wird. Durch diese Einbauten 12, die hier als aus vollem Material bestehende Keile ausgebildet sind, wird die Stoffsuspension zusätzlich beschleunigt und es findet eine Druckerhöhung statt. Die Einbauten 12 können aber auch hohl sein oder an ihrer Oberfläche gerundet, d.h. schaufelförmig ausgebildet sein. Derartige Einbauten 12 können auch im Stoffkanal 7 z.B. der Ausführungsvarianten nach Fig. 1 - 4, oder 8, 10 - 13 wie auch den zu Fig. 5 analogen Ausführungen der Fig. 6, 7 und 9 eingesetzt werden.Fig. 14 shows a section along line A-A in Fig. 5. One can see here Internals 12, which are also referred to as blades or wings can. These internals 12 divide the stock feed channel 2 into individual ones Stock feed channels 2 'through which the pulp suspension from central inlet 1 is led to the outside grinding gap 3. By these internals 12, here as wedges made of full material are trained, the stock suspension is additionally accelerated and it there is an increase in pressure. The internals 12 can also be hollow be or rounded on its surface, i.e. Shovel-shaped his. Such internals 12 can also in the fabric channel 7 e.g. the 1 - 4, or 8, 10 - 13 as well as the Fig. 5 analog versions of Figs. 6, 7 and 9 are used.

Claims (11)

Refiner bestehend aus einem Rotor und einem Stator mit einem Einlaßrohr und einem zylinder oder kegelförmigen Mahlspalt zwischen Rotor und Stator, dadurch gekennzeichnet, daß sich der Stoffzufuhrkanal (2,7) vom Einlaßrohr (1) zum Mahlspalt (3) hin in radialer Richtung erstreckt.Refiner consisting of a rotor and a stator with an inlet tube and a cylindrical or conical grinding gap between the rotor and stator, characterized in that the stock feed channel (2,7) extends from the inlet tube (1) to the grinding gap (3) in the radial direction. Refiner nach Anspruch 1, dadurch gekennzeichnet, daß der Stoffzufuhrkanal (2,7) rotationssymetrisch ausgebildet ist.Refiner according to claim 1, characterized in that the stock feed channel (2,7) is rotationally symmetrical. Refiner nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das mit dem Stoffzufuhrkanal (2) verbundene Einlaßrohr (1) eine Achse aufweist, die mit der Achse des Rotors zusammenfällt.Refiner according to claim 1 or 2, characterized in that the inlet pipe (1) connected to the stock feed channel (2) has an axis which coincides with the axis of the rotor. Refiner nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß zwischen Einlaßrohr (1) und Mahlspalt (3) eine Scheibe (8) vorgesehen ist, die den Stoffzufuhrkanal (7) begrenzt.Refiner according to claim 1 or 2, characterized in that a disc (8) is provided between the inlet pipe (1) and grinding gap (3), which delimits the stock feed channel (7). Refiner nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß ein zylindrischer Rotor (5) vorgesehen ist.Refiner according to one of claims 1 to 4, characterized in that a cylindrical rotor (5) is provided. Refiner nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß ein sich in Strömungsrichtung des Stoffes erweiternder Kegelrotor (5) vorgesehen ist.Refiner according to one of Claims 1 to 4, characterized in that a cone rotor (5) which widens in the direction of flow of the material is provided. Refiner nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß ein sich in Strömungsrichtung des Stoffes verjüngender Kegelrotor (5) vorgesehen ist. Refiner according to one of claims 1 to 4, characterized in that a conical rotor (5) tapering in the direction of flow of the material is provided. Refiner nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß ein Doppelrotor (5) vorgesehen ist.Refiner according to one of claims 1 to 7, characterized in that a double rotor (5) is provided. Refiner nach Anspruch 8, dadurch gekennzeichnet, daß der Stoffzufuhrkanal (2) zwischen den beiden Rotoren (5) angeordnet ist.Refiner according to claim 8, characterized in that the stock feed channel (2) is arranged between the two rotors (5). Refiner nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß ein zylindrischer und ein kegelförmiger Mahlspalt (3) aneinandergereiht sind.Refiner according to one of claims 1 to 9, characterized in that a cylindrical and a conical grinding gap (3) are strung together. Refiner nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß im Stoffzufuhrkanal (2,7) und/oder Einlaßrohr (1) Einbauten (12), insbesondere Schaufeln, angeordnet sind.Refiner according to one of claims 1 to 10, characterized in that internals (12), in particular blades, are arranged in the stock feed channel (2,7) and / or inlet pipe (1).
EP01101560A 2000-02-03 2001-01-25 Refiner Expired - Lifetime EP1122356B1 (en)

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AT (2) AT408769B (en)
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CA (1) CA2333799A1 (en)
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FI121963B (en) * 2009-07-03 2011-06-30 Metso Paper Inc refiner
CN103061189B (en) * 2013-01-16 2015-01-07 苏州飞宇精密科技股份有限公司 Cylindrical pulping machine with double pulping areas
CN103061190B (en) * 2013-01-16 2015-01-07 苏州飞宇精密科技股份有限公司 Cylindrical single-grinding grinder
CN103362013A (en) * 2013-04-03 2013-10-23 上海尚鼎机械科技有限公司 Gap adjustment optimizing structure of cylindrical refiner
CN104480767B (en) * 2014-11-10 2016-11-09 合肥宏图彩印有限公司 A kind of hold-down mechanism in cylinder fiberizer
CN104452400B (en) * 2014-11-10 2016-11-09 合肥宏图彩印有限公司 A kind of hold-down mechanism for lava flybar
CN105908554B (en) * 2015-08-26 2019-01-18 李军 Column type defibering fiberizer
CN113529466B (en) * 2020-04-14 2025-03-14 郑州运达造纸设备有限公司 A high frequency deflaking machine with pre-treatment function
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Also Published As

Publication number Publication date
CA2333799A1 (en) 2001-08-03
CN1201048C (en) 2005-05-11
CN1311370A (en) 2001-09-05
DE50107162D1 (en) 2005-09-29
BR0100357A (en) 2001-10-02
EP1122356B1 (en) 2005-08-24
ATA1682000A (en) 2001-07-15
US20010020660A1 (en) 2001-09-13
ES2246939T3 (en) 2006-03-01
ATE302874T1 (en) 2005-09-15
US6637686B2 (en) 2003-10-28
AT408769B (en) 2002-03-25
EP1122356A3 (en) 2001-11-28

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