EP0787528B1 - Vortex mill - Google Patents
Vortex mill Download PDFInfo
- Publication number
- EP0787528B1 EP0787528B1 EP96119732A EP96119732A EP0787528B1 EP 0787528 B1 EP0787528 B1 EP 0787528B1 EP 96119732 A EP96119732 A EP 96119732A EP 96119732 A EP96119732 A EP 96119732A EP 0787528 B1 EP0787528 B1 EP 0787528B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- base portion
- mill according
- cylindrical wall
- rotor
- section
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/282—Shape or inner surface of mill-housings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
- B02C2013/145—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with fast rotating vanes generating vortexes effecting material on material impact
Definitions
- the invention relates to an eddy current mill, with a Bottom part, which is rotatable in a bearing housing mounted rotor and an upward, has a cylindrical wall part coaxial to the rotor axis, and with a grinder housing, which with a conical Grinding track encloses the rotor and one facing downwards has cylindrical collar which in the cylindrical Wall part axially displaceable and for setting the Axial grinding gap existing between rotor and grinding track is adjustable.
- a mill is known from DE-A-2353907.
- the grinder housing In eddy current mills of this type must from time to time the grinder housing can be removed from the base part so that the inside of the mill, in particular the rotor, is accessible for cleaning and maintenance purposes.
- the grinding housing in the connection on the cylindrical collar one to the outside protruding flange on that with several axial Holes is provided. There are screws in these holes used in axial threaded holes in the cylindrical wall part are screwed. Between the upward edge of the cylindrical wall part and the flange are inserted through which determines the size of the grinding gap. If the grinder opened for cleaning and maintenance purposes the screws are removed first and then you have the cylindrical collar, the one Forms part of the grinder housing, carefully in axial direction upwards from the cylindrical wall part pull out.
- the grinder housing must be installed on the bottom part the cylindrical collar again exactly in the axial direction in the cylindrical Wall part to be introduced. Because the grinder housing is relatively is heavy and depending on the size of the grinder The assembly can weigh 60 and 800 kg difficult because there are also hoists, e.g. a crane, must be used.
- the invention is therefore based on the object To create eddy current mill of the type mentioned at the beginning, in which the grinder housing in a simple manner from the bottom part can be dismantled or reassembled on this.
- the upper bottom section via a swivel device to connect to the support frame, which also carries the lower bottom section.
- this Swiveling device can from the lower bottom section detached upper bottom section together with the grinding housing, which is connected to the upper bottom section remains, simply be swung up without a hoist is required.
- Another advantage of Eddy current mill according to the invention can be seen in that when dismantling the upper bottom section from the lower bottom section the grinder housing always can remain connected to the upper bottom section. This leaves the axial adjustment between the cylindrical collar and the cylindrical wall part and to maintain the setting of the grinding gap. The Grinding gap must therefore be after cleaning or maintenance cannot be set again.
- the bottom part of the Eddy current mill according to the invention consists of a upper bottom section 1a and a lower bottom section 1b.
- the lower bottom section 1b carries a bearing housing 2 in which the rotor 3 is rotatably supported is.
- the upper bottom section 1a contains a cylindrical wall part 5. This is with a flange 6 arranged at its lower end firmly connected.
- the flange 6 fits with a flange 7 together, that with the upper end of the lower bottom section 1b is firmly connected.
- Screws 8 are provided for detachable Connection of the two flanges 6, 7 .
- the parting plane E between the upper bottom section 1a and the lower bottom section 1b runs perpendicular to the rotor axis A.
- the grinding housing 9 has a conical, i.e. frustoconical Mahlbahn 10 on.
- This grinding track 10 encloses the rotor 3, so that between the attached to the rotor 3 Grinding tools 3a and the grinding track 10 a grinding gap S remains.
- the grinding housing 9 also points downwards directed cylindrical collar 11, which in the cylindrical wall part 5 is axially displaceable.
- the Collar 11 is firmly connected to the grinding housing 9 or forms an integral part of the grinder housing.
- At the upper end of the collar 11 is an outward Flange 12 provided.
- the axial adjustment between the collar 11 and the cylindrical wall part 5 and thus also the width of the grinding gap S can be changed.
- the grinding housing 9 After setting the desired grinding gap width S, the grinding housing 9 with the upper bottom section 1a by means of the screws 15 screwed tight.
- the collar 11 and the cylindrical wall part 5 are arranged coaxially to the rotor axis A.
- the lower bottom section 1b is in accordance with FIG screwed to a support frame 16, on which also the Drive motor, not shown, can be attached.
- support frame 16 On the support frame 16 support plates 17 are attached, which carry a pivot axis 18.
- the pivot axis 18 extends perpendicular to the rotor axis A. Because in the shown Embodiment the rotor axis A vertical runs, the pivot axis 18 is arranged horizontally.
- the pivot axis 18 is at a lateral distance from the two bottom sections 1a, 1b arranged. she is expediently on or near the parting plane E. intended.
- the pivot axis 18 is used to support a Swivel arm 19, which partly consists of a side approach 6a of the flange 6, which in turn is a component of the upper bottom section 1a.
- the swivel arm 19 is part of a swivel device, with which the upper bottom section 1a and the grinding housing 9 screwed to it is pivoted upwards can be, as shown in Figure 1, left is.
- the pivoting device is a piston-cylinder unit 20 on that between the swivel arm 19 and the support frame 16 is arranged.
- the grinder housing for cleaning or maintenance purposes should be opened, then it is only required, the screws 8, the flanges 6 and 7 of the two bottom sections 1a and 1b with each other connect, solve.
- the grinder housing remains via the screws 12 firmly to the upper bottom section 1a screwed so that no change in the Grinding gap S occurs.
- the piston-cylinder unit 20 is actuated.
- the swivel arm 19 and thus the one connected to it upper bottom section 1a together with the grinding housing 9 pivoted upward, as shown in Figure 1, left is.
- the rotor 3 lies free. It can be cleaned. If necessary , the grinding tools 3a can be replaced.
- FIG 3 is yet another embodiment of the Swivel device shown.
- the swivel arm 19 'over a parallel to the pivot axis 18 Axle 21 articulated with the upper bottom section connected. It is also a parallelogram link 22 provided that both at the upper bottom section 1a and also articulated on the support frame or its support plates 17 is.
- the remaining parts of the swivel device and the mill correspond to that described above Embodiment, so they are not here again are described.
- the upper bottom section 1a and with it connected grinding housing 9 always in a horizontal position held, so in a position that they can also be assembled Take state.
- This type of swivel device is especially for mills of larger design suitable and for those with a pure swivel movement of the upper bottom section 1a and Grinder housing 9 to a collision between these parts and could lead the rotor.
Abstract
Description
Die Erfindung betrifft eine Wirbelstrommühle, mit einem Bodenteil, welches einen in einem Lagergehäuse drehbar gelagerten Rotor trägt und ein nach oben gerichtetes, zur Rotorachse koaxiales, zylindrisches Wandteil aufweist, und mit einem Mahlgehäuse, welches mit einer konischen Mahlbahn den Rotor umschließt und einen nach unten gerichteten zylindrischen Kragen aufweist, der in dem zylindrischen Wandteil axial verschiebbar und zur Einstellung des zwischen Rotor und Mahlbahn vorhandenen Mahlspaltes axial verstellbar ist. Eine Solche Mühle ist aus der DE-A-2353907 bekannt.The invention relates to an eddy current mill, with a Bottom part, which is rotatable in a bearing housing mounted rotor and an upward, has a cylindrical wall part coaxial to the rotor axis, and with a grinder housing, which with a conical Grinding track encloses the rotor and one facing downwards has cylindrical collar which in the cylindrical Wall part axially displaceable and for setting the Axial grinding gap existing between rotor and grinding track is adjustable. Such a mill is known from DE-A-2353907.
Bei Wirbelstrommühlen dieser Art muß von Zeit zu Zeit das Mahlgehäuse vom Bodenteil abgenommen werden, damit das Innere der Mühle, insbesondere der Rotor, zu Reinigungs- und Wartungszwecken zugänglich wird. Bei einer bekannten Konstruktion weist das Mahlgehäuse im Anschluß an den zylindrischen Kragen einen nach außen vorstehenden Flansch auf, der mit mehreren axialen Bohrungen versehen ist. In diese Bohrungen sind Schrauben eingesetzt, die in axiale Gewindebohrungen im zylindrischen Wandteil eingeschraubt sind. Zwischen dem nach oben gerichteten Rand des zylindrischen Wandteiles und dem Flansch sind Distanzstücke eingelegt, durch welche die Größe des Mahlspaltes bestimmt wird. Wenn die Mühle zu Reinigungs- und Wartungszwecken geöffnet werden soll, dann werden zunächst die Schrauben entfernt und man muß dann den zylindrischen Kragen, der einen Bestandteil des Mahlgehäuses bildet, vorsichtig in axialer Richtung nach oben aus dem zylindrischen Wandteil herausziehen. Umgekehrt muß zur Montage des Mahlgehäuses auf dem Bodenteil der zylindrische Kragen wieder genau in axialer Richtung in das zylindrische Wandteil eingeführt werden. Da das Mahlgehäuse verhältnismäßig schwer ist und je nach Größe der Mühle zwischen 60 und 800 kg wiegen kann, ist insbesondere die Montage schwierig, da hierfür auch noch Hebezeuge, z.B. ein Kran, eingesetzt werden müssen.In eddy current mills of this type must from time to time the grinder housing can be removed from the base part so that the inside of the mill, in particular the rotor, is accessible for cleaning and maintenance purposes. At a known construction has the grinding housing in the connection on the cylindrical collar one to the outside protruding flange on that with several axial Holes is provided. There are screws in these holes used in axial threaded holes in the cylindrical wall part are screwed. Between the upward edge of the cylindrical wall part and the flange are inserted through which determines the size of the grinding gap. If the grinder opened for cleaning and maintenance purposes the screws are removed first and then you have the cylindrical collar, the one Forms part of the grinder housing, carefully in axial direction upwards from the cylindrical wall part pull out. Conversely, the grinder housing must be installed on the bottom part the cylindrical collar again exactly in the axial direction in the cylindrical Wall part to be introduced. Because the grinder housing is relatively is heavy and depending on the size of the grinder The assembly can weigh 60 and 800 kg difficult because there are also hoists, e.g. a crane, must be used.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Wirbelstrommühle der eingangs erwähnten Art zu schaffen, bei der das Mahlgehäuse in einfacher Weise vom Bodenteil demontierbar bzw. wieder auf diesem montierbar ist.The invention is therefore based on the object To create eddy current mill of the type mentioned at the beginning, in which the grinder housing in a simple manner from the bottom part can be dismantled or reassembled on this.
Dies wird nach der Erfindung dadurch erreicht, daß das Bodenteil unterhalb des Verschiebebereiches, in welchem der zylindrische Kragen in dem zylindrischen Wandteil verschiebbar ist, entlang einer senkrecht zur Rotorachse verlaufenden Trennebene in einen oberen Bodenteilabschnitt und einen unteren Bodenteilabschnitt unterteilt ist, die beide lösbar miteinander verbunden sind und von denen der obere Bodenteilabschnitt das zylindrische Wandteil und der untere Bodenteilabschnitt das Rotorlagergehäuse enthält.This is achieved according to the invention in that the Bottom part below the displacement area, in which the cylindrical collar in the cylindrical wall part is slidable along a perpendicular to the rotor axis running parting plane in an upper bottom section and a lower bottom section is divided into both are releasably connected to each other and of which the upper bottom section the cylindrical wall part and the lower bottom section of the rotor bearing housing contains.
Durch diese Ausgestaltung kann das gesamte, aus Mahlgehäuse und Bodenteil bestehende, Mühlengehäuse nunmehr an einer anderen Stelle zu Reinigungs- und Wartungszwecken geteilt und geöffnet werden. Wenn eine Reinigung oder Wartung erforderlich ist, dann wird die Verbindung zwischen dem oberen Bodenteilabschnitt und dem unteren Bodenteilabschnitt gelöst. Die Verbindung zwischen dem Mahlgehäuse und dem oberen Bodenteilabschnitt bleibt jedoch erhalten. Das Mahlgehäuse kann nunmehr zusammen mit dem oberen Bodenteilabschnitt vom unteren Bodenteilabschnitt entfernt werden. Da der obere Bodenteilabschnitt das zylindrische Wandteil enthält, wird praktisch dieses zusammen mit dem am Mahlgehäuse vorhandenen Kragen entfernt. Bei der Demontage und insbesondere der Montage braucht also nicht mehr auf die zylindrische Führung zwischen Kragen und zylindrischem Wandteil Rücksicht genommen zu werden. Die Demontage und Montage wird hierdurch sehr erleichtert. Insbesondere ist es jetzt möglich, den oberen Bodenteilabschnitt über eine Schwenkeinrichtung mit dem Traggestell zu verbinden, welches auch den unteren Bodenteilabschnitt trägt. Mittels dieser Schwenkeinrichtung kann der vom unteren Bodenteilabschnitt gelöste obere Bodenteilabschnitt zusammen mit dem Mahlgehäuse, welches mit dem oberen Bodenteilabschnitt verbunden bleibt, einfach hochgeschwenkt werden, ohne daß ein Hebezeug erforderlich ist. Ein weiterer Vorteil der erfindungsgemäßen Wirbelstrommühle ist darin zu sehen, daß bei der Demontage des oberen Bodenteilabschnittes von dem unteren Bodenteilabschnitt das Mahlgehäuse stets mit dem oberen Bodenteilabschnitt verbunden bleiben kann. Hierdurch bleibt die axiale Einstellung zwischen dem zylindrischen Kragen und dem zylindrischen Wandteil und damit die Einstellung des Mahlspaltes erhalten. Der Mahlspalt muß also nach einer Reinigung oder Wartung nicht erneut eingestellt werden.Through this configuration, the entire, from grinding housing and bottom part existing mill housing now elsewhere for cleaning and maintenance purposes shared and opened. If a cleaning or maintenance is required, then the connection between the upper bottom section and the lower Bottom section detached. The connection between the Grinder housing and the upper bottom section remains received however. The grinder housing can now be put together with the upper bottom section from the lower bottom section be removed. Because the upper bottom section that contains the cylindrical wall part becomes practical this together with the existing one on the grinding housing Collar removed. When dismantling and especially the Assembly no longer needs on the cylindrical Guide between the collar and the cylindrical wall section to be taken. The disassembly and assembly will very relieved. In particular, it is now possible, the upper bottom section via a swivel device to connect to the support frame, which also carries the lower bottom section. By means of this Swiveling device can from the lower bottom section detached upper bottom section together with the grinding housing, which is connected to the upper bottom section remains, simply be swung up without a hoist is required. Another advantage of Eddy current mill according to the invention can be seen in that when dismantling the upper bottom section from the lower bottom section the grinder housing always can remain connected to the upper bottom section. This leaves the axial adjustment between the cylindrical collar and the cylindrical wall part and to maintain the setting of the grinding gap. The Grinding gap must therefore be after cleaning or maintenance cannot be set again.
Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Advantageous embodiments of the invention are in the Subclaims marked.
Die Erfindung ist in folgendem, anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert. Es zeigen:
- Figur 1
- ein erstes Ausführungsbeispiel im Axialschnitt,
Figur 2- einen Axialschnitt des ersten Ausführungsbeispieles in einem größeren Maßstab,
Figur 3- ein zweites Ausführungsbeispiel im Axialschnitt.
- Figure 1
- a first embodiment in axial section,
- Figure 2
- 3 shows an axial section of the first exemplary embodiment on a larger scale,
- Figure 3
- a second embodiment in axial section.
Wirbelstrommühlen der erfindungsgemäßen Art arbeiten
nach dem Prinzip der Prallmühlen. Das Bodenteil der
erfindungsgemäßen Wirbelstrommühle besteht aus einem
oberen Bodenteilabschnitt 1a und einem unteren Bodenteilabschnitt
1b. Der untere Bodenteilabschnitt 1b trägt
ein Lagergehäuse 2, in welchem der Rotor 3 drehbar gelagert
ist. Der Antrieb des Rotors kann von einem nicht
dargestellten Motor aus über mehrere Riemen und die
am unteren Ende der Rotorwelle vorgesehene Riemenscheibe
4 erfolgen. Der obere Bodenteilabschnitt 1a
enthält ein zylindrisches Wandteil 5. Dieses ist mit
einem an seinem unteren Ende angeordneten Flansch 6
fest verbunden. Der Flansch 6 paßt mit einem Flansch 7
zusammen, der mit dem oberen Ende des unteren Bodenteilabschnittes
1b fest verbunden ist. Zur lösbaren
Verbindung der beiden Flansche 6, 7 sind mehrere
Schrauben 8 vorgesehen. Die Trennebene E zwischen dem
oberen Bodenteilabschnitt 1a und dem unteren Bodenteilabschnitt
1b verläuft senkrecht zur Rotorachse A.Eddy current mills of the type according to the invention work
on the principle of impact mills. The bottom part of the
Eddy current mill according to the invention consists of a
Das Mahlgehäuse 9 weist eine konische, d.h. kegelstumpfförmige
Mahlbahn 10 auf. Diese Mahlbahn 10 umschließt
den Rotor 3, so daß zwischen den am Rotor 3 befestigten
Mahlwerkzeugen 3a und der Mahlbahn 10 ein Mahlspalt S
verbleibt. Das Mahlgehäuse 9 weist auch einen nach unten
gerichteten zylindrischen Kragen 11 auf, der in dem
zylindrischen Wandteil 5 axial verschiebbar ist. Der
Kragen 11 ist mit dem Mahlgehäuse 9 fest verbunden bzw.
bildet einen integralen Bestandteil des Mahlgehäuses.
Am oberen Ende des Kragens 11 ist ein nach außen gerichteter
Flansch 12 vorgesehen. Zwischen diesem Flansch 12
und einem weiteren Flansch 13, der am oberen Ende des
zylindrischen Wandteiles 5 angeordnet ist, sind mehrere
Distanzstücke 14 angeordnet. Mittels dieser Distanzstücke
kann die axiale Einstellung zwischen dem Kragen 11
und dem zylindrischen Wandteil 5 und damit auch die Breite
des Mahlspaltes S verändert werden. Nach Einstellung der
gewünschten Mahlspaltbreite S wird das Mahlgehäuse 9 mit
dem oberen Bodenteilabschnitt 1a mittels der Schrauben 15
fest verschraubt. Der Kragen 11 und das zylindrische Wandteil
5 sind koaxial zur Rotorachse A angeordnet.The grinding
Der untere Bodenteilabschnitt 1b ist gemäß Figur 1 mit
einem Traggestell 16 verschraubt, an welchem auch der
nicht dargestellte Antriebsmotor befestigt sein kann.
An dem Traggestell 16 sind Tragplatten 17 befestigt, welche
eine Schwenkachse 18 tragen. Die Schwenkachse 18 erstreckt
sich senkrecht zur Rotorachse A. Da bei dem gezeigten
Ausführungsbeispiel die Rotorachse A vertikal
verläuft, ist die Schwenkachse 18 horizontal angeordnet.
Die Schwenkachse 18 ist mit seitlichem Abstand von den
beiden Bodenteilabschnitten 1a, 1b angeordnet. Sie ist
dabei zweckmäßig auf oder in der Nähe der Trennebene E
vorgesehen. Die Schwenkachse 18 dient zur Lagerung eines
Schwenkarmes 19, der zum Teil aus einem seitlichen Ansatz
6a des Flansches 6 besteht, der seinerseits Bestandteil
des oberen Bodenteilabschnittes 1a ist.The
Der Schwenkarm 19 ist Bestandteil einer Schwenkeinrichtung,
mit welcher der obere Bodenteilabschnitt 1a und
das mit ihm verschraubte Mahlgehäuse 9 nach oben geschwenkt
werden kann, wie es in Figur 1, links, dargestellt
ist. Zum Verschwenken des Schwenkarmes 19 weist
die Schwenkeinrichtung eine Kolben-Zylinder-Einheit 20
auf, die zwischen dem Schwenkarm 19 und dem Traggestell
16 angeordnet ist. The
Wenn das Mühlengehäuse zu Reinigungs- oder Wartungszwecken
geöffnet werden soll, dann ist es lediglich
erforderlich, die Schrauben 8, welche die Flansche 6
und 7 der beiden Bodenteilabschnitte 1a und 1b miteinander
verbinden, zu lösen. Das Mahlgehäuse bleibt jedoch
über die Schrauben 12 fest mit dem oberen Bodenteilabschnitt
1a verschraubt, so daß keine Veränderung des
Mahlspaltes S eintritt. Nach dem Lösen der Schrauben 8
wird die Kolben-Zylinder-Einheit 20 betätigt. Hierdurch
wird der Schwenkarm 19 und damit der mit ihm verbundene
obere Bodenteilabschnitt 1a zusammen mit dem Mahlgehäuse
9 nach oben geschwenkt, wie es in Figur 1, links, dargestellt
ist. Nachdem dies erfolgt ist, liegt der Rotor 3
frei. Er kann gereinigt werden. Falls es erforderlich
ist, können die Mahlwerkzeuge 3a ausgetauscht werden.
Nach Beendigung der Reinigungs- und Wartungsarbeiten
wird der Bodenteilabschnitt 1a zusammen mit dem Mahlgehäuse
9 entgegen der Pfeilrichtung B wieder nach unten
geschwenkt. Nach dem Einsetzen und Festziehen der Schrauben
8 ist die Mühle wieder einsatzbereit. Die Demontage
und Montage ist also denkbar einfach. Die zur Demontage
bzw. Montage erforderliche Arbeitszeit wird verkürzt
und die Arbeit durch die Schwenkeinrichtung 19, 20 erleichtert.
Bei Mühlen sehr kleiner Bauart kann u.U. auf
die Schwenkeinrichtung oder zumindestens auf die Kolben-Zylinder-Einheit
20 verzichtet werden.If the grinder housing for cleaning or maintenance purposes
should be opened, then it is only
required, the screws 8, the
In Figur 3 ist noch eine weitere Ausführungsform der
Schwenkeinrichtung dargestellt. Hierbei ist der Schwenkarm
19' über eine parallel zur Schwenkachse 18 verlaufende
Achse 21 mit dem oberen Bodenteilabschnitt gelenkig
verbunden. Es ist ferner ein Parallelogrammlenker 22
vorgesehen, der sowohl am oberen Bodenteilabschnitt 1a
als auch am Traggestell bzw. dessen Tragplatten 17 angelenkt
ist. Die übrigen Teile der Schwenkeinrichtung und
der Mühle entsprechen dem vorhergehend beschriebenen
Ausführungsbeispiel, so daß sie hier nicht noch einmal
beschrieben sind. Bei dieser Art der Schwenkeinrichtung
werden der obere Bodenteilabschnitt 1a und das mit ihm
verbundene Mahlgehäuse 9 immer in horizontaler Stellung
gehalten, also in einer Lage, die sie auch in fertigmontiertem
Zustand einnehmen. Diese Art der Schwenkeinrichtung
ist insbesondere für Mühlen größerer Bauart
geeignet und für solche, bei denen eine reine Schwenkbewegung
des oberen Bodenteilabschnittes 1a und des
Mahlgehäuses 9 zu einer Kollision zwischen diesen Teilen
und dem Rotor führen könnte.In Figure 3 is yet another embodiment of the
Swivel device shown. Here is the swivel arm
19 'over a parallel to the
Claims (9)
- Vortex mill, with a base portion (1a, 1b) which carries a rotor (3) rotatably mounted in a bearing housing and has an upwardly aligned cylindrical wall portion (5), coaxial with the rotational axis, and with a mill casing (9) which surround the rotor (3) with a conical grinding path (10) and has a downwardly aligned cylindrical collar (11) which may be displaced axially in the cylindrical wall portion (5) and may be adjusted axially to set the grinding gap (5) existing between rotor (3) and grinding path (10), characterised in that the base portion (1a, 1b) below the displacement area, in which the cylindrical collar (11) may be displaced in the cylindrical wall portion (5), is divided along a plane of separation (E) running perpendicular to the rotational axis (A) into an upper base portion section (1a) and a lower base portion section (1b), the two of which are detachably connected to one another, and of which the upper base portion section (1a) contains the cylindrical wall portion (5) and the lower base portion section (1b) contains the rotor bearing housing (2).
- Mill according to claim 1, characterised in that the two base portion sections (1a, 1b) are provided with matching flanges (6, 7) at their ends facing one another.
- Mill according to claim 2, characterised in that the two flanges (6, 7) are detachably connected to one another by means of screws (8).
- Mill according to one of claims 1 to 3, characterised in that the lower base portion section (1b) is secured in a support frame (16), and in that with the upper base portion section (1a) a swivelling device (19, 20), its swivel axis (18) running parallel with the rotational axis (A), is disposed in the support frame (16) at a lateral spacing from the two base portion sections (1a, 1b).
- Mill according to claim 4, characterised in that the swivelling device incorporates at least one swivel arm (6a, 19) rotatable around the swivel axis (18).
- Mill according to claim 5, characterised in that the swivel arm (6a, 19) is rigidly connected with the upper base portion section (1a).
- Mill according to claim 5, characterised in that the swivel arm (19') is connected via an axis (21) running parallel to the swivel axis (18) with the upper base portion section (1a), and a parallelogram link (22) is linked to the latter and to the support frame (16).
- Mill according to one of claims 4 to 7, characterised in that the swivelling device incorporates a piston-cylinder unit (20) acting between swivel arm (19, 19') and support frame (16).
- Mill according to one of claims 4 to 8, characterised in that the swivel axis (18) is disposed in the plane of separation (E) or in the proximity of same.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19603627 | 1996-02-01 | ||
| DE19603627A DE19603627C2 (en) | 1996-02-01 | 1996-02-01 | Eddy current mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0787528A1 EP0787528A1 (en) | 1997-08-06 |
| EP0787528B1 true EP0787528B1 (en) | 1999-07-14 |
Family
ID=7784263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96119732A Expired - Lifetime EP0787528B1 (en) | 1996-02-01 | 1996-12-10 | Vortex mill |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0787528B1 (en) |
| AT (1) | ATE182088T1 (en) |
| DE (1) | DE19603627C2 (en) |
| ES (1) | ES2135837T3 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7445806B2 (en) | 2004-09-02 | 2008-11-04 | Kraft Foods Global Brands Llc | Process for selective grinding and recovery of dual-density foods |
| EP2052778A1 (en) | 2007-10-25 | 2009-04-29 | Microtec GmbH | Whirlpool mill and grinding tool and grinding ring for same |
| DE102007051393A1 (en) | 2007-10-25 | 2009-04-30 | Microtec Gmbh | Grinding tool for whirlpool mill, has mill gap for mounting at rotor and mill gap is defined between stator and rotor, and refractive surface is provided that points towards rotational direction |
| EP2065090A1 (en) | 2007-11-29 | 2009-06-03 | Microtec GmbH | Eddy current mill |
| EP2070596A1 (en) | 2007-12-13 | 2009-06-17 | Microtec GmbH | Eddy current mill |
| EP2319625A1 (en) | 2009-11-05 | 2011-05-11 | MICROTEC GmbH | Vortex mill and grinding tool for same |
| JP2011526204A (en) * | 2008-06-25 | 2011-10-06 | リーハイ テクノロジーズ， インコーポレイテッド | Conical impact mill |
| DE102013002237B3 (en) * | 2013-02-11 | 2014-05-22 | Microtec Gmbh | Classifier |
| US9357791B2 (en) | 2010-07-16 | 2016-06-07 | Kraft Foods R & D, Inc. | Coffee products and related processes |
| US10766038B2 (en) | 2015-08-27 | 2020-09-08 | Josef Fischer | Cryogenic grinding apparatus and process |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8067051B2 (en) | 2006-06-19 | 2011-11-29 | Kraft Foods R & D, Inc. | Process for milling cocoa shells |
| US7900860B2 (en) | 2007-04-05 | 2011-03-08 | Lehigh Technologies, Inc. | Conical-shaped impact mill |
| EP2377618A1 (en) | 2010-04-14 | 2011-10-19 | Air Products And Chemicals, Inc. | Rotary impact mill |
| JP6370499B2 (en) | 2015-02-18 | 2018-08-08 | ペーエムエス ハンデルスコントア ゲゼルシャフト ミット ベシュレンクテル ハフツングＰＭＳ Ｈａｎｄｅｌｓｋｏｎｔｏｒ ＧｍｂＨ | Crusher |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2353907C3 (en) * | 1973-10-27 | 1980-01-31 | Krauss-Maffei Ag, 8000 Muenchen | Impact mill |
-
1996
- 1996-02-01 DE DE19603627A patent/DE19603627C2/en not_active Expired - Lifetime
- 1996-12-10 ES ES96119732T patent/ES2135837T3/en not_active Expired - Lifetime
- 1996-12-10 AT AT96119732T patent/ATE182088T1/en active
- 1996-12-10 EP EP96119732A patent/EP0787528B1/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7445806B2 (en) | 2004-09-02 | 2008-11-04 | Kraft Foods Global Brands Llc | Process for selective grinding and recovery of dual-density foods |
| EP2052778A1 (en) | 2007-10-25 | 2009-04-29 | Microtec GmbH | Whirlpool mill and grinding tool and grinding ring for same |
| DE102007051393A1 (en) | 2007-10-25 | 2009-04-30 | Microtec Gmbh | Grinding tool for whirlpool mill, has mill gap for mounting at rotor and mill gap is defined between stator and rotor, and refractive surface is provided that points towards rotational direction |
| DE102007051393B4 (en) * | 2007-10-25 | 2015-03-05 | Lehigh Technologies, Inc., (n. d. Ges. d. Staates Delaware) | Eddy current mill, as well as grinding tool and Mahlring for it |
| EP2065090A1 (en) | 2007-11-29 | 2009-06-03 | Microtec GmbH | Eddy current mill |
| DE102007057565A1 (en) | 2007-11-29 | 2009-06-04 | Microtec Gmbh | Eddy current mill, rotor and stator, as well as grinding track insert and grinding tool insert for it |
| DE102007060072B4 (en) * | 2007-12-13 | 2013-03-28 | Lehigh Technologies, Inc. | Whirlwind Mill |
| EP2070596A1 (en) | 2007-12-13 | 2009-06-17 | Microtec GmbH | Eddy current mill |
| DE102007060072A1 (en) | 2007-12-13 | 2009-06-18 | Microtec Gmbh | Whirlwind Mill |
| JP2011526204A (en) * | 2008-06-25 | 2011-10-06 | リーハイ テクノロジーズ， インコーポレイテッド | Conical impact mill |
| DE102009053150A1 (en) | 2009-11-05 | 2011-05-12 | Microtec Gmbh | Whirlwinds and grinding tool for it |
| EP2319625A1 (en) | 2009-11-05 | 2011-05-11 | MICROTEC GmbH | Vortex mill and grinding tool for same |
| DE202009019131U1 (en) | 2009-11-05 | 2017-01-22 | Microtec Gmbh | Whirlwind mill and grinding tool for it |
| US9357791B2 (en) | 2010-07-16 | 2016-06-07 | Kraft Foods R & D, Inc. | Coffee products and related processes |
| DE102013002237B3 (en) * | 2013-02-11 | 2014-05-22 | Microtec Gmbh | Classifier |
| EP2764921A1 (en) | 2013-02-11 | 2014-08-13 | MICROTEC GmbH | Sifter mill |
| US10766038B2 (en) | 2015-08-27 | 2020-09-08 | Josef Fischer | Cryogenic grinding apparatus and process |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE182088T1 (en) | 1999-07-15 |
| DE19603627C2 (en) | 1998-04-23 |
| ES2135837T3 (en) | 1999-11-01 |
| EP0787528A1 (en) | 1997-08-06 |
| DE19603627A1 (en) | 1997-08-07 |
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