EP1970124A2 - Agitator ball mill - Google Patents

Agitator ball mill Download PDF

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Publication number
EP1970124A2
EP1970124A2 EP08004262A EP08004262A EP1970124A2 EP 1970124 A2 EP1970124 A2 EP 1970124A2 EP 08004262 A EP08004262 A EP 08004262A EP 08004262 A EP08004262 A EP 08004262A EP 1970124 A2 EP1970124 A2 EP 1970124A2
Authority
EP
European Patent Office
Prior art keywords
cylinder
openings
ball mill
agitator ball
mill 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.)
Withdrawn
Application number
EP08004262A
Other languages
German (de)
French (fr)
Other versions
EP1970124A3 (en
Inventor
Udo Enderle
Jochen Suk
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.)
Netzsch Feinmahltechnik GmbH
Original Assignee
Netzsch Feinmahltechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Netzsch Feinmahltechnik GmbH filed Critical Netzsch Feinmahltechnik GmbH
Publication of EP1970124A2 publication Critical patent/EP1970124A2/en
Publication of EP1970124A3 publication Critical patent/EP1970124A3/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
    • B02C17/161—Arrangements for separating milling media and ground material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/183—Feeding or discharging devices
    • B02C17/1835—Discharging devices combined with sorting or separating of material

Definitions

  • the invention relates to a device for separating Mahlosêtn from the product in a stirred ball mill.
  • the object of the invention is to make this Vorklassier adopted so that the Mahlosterrorism be returned faster towards the inlet and the Mahlgut Mahlos redesignkonzentritation is concentrated on a specific area of the grinding container.
  • the material to be ground is already caused to recirculate in a relatively long distance in front of the separator.
  • a distance of 2 to 30 times, 5 to 20 times, 10 to 15 times the diameter of the openings introduced in the cylinder remains free.
  • the slot-shaped apertures may be inclined at an angle of 0-45 ° to the longitudinal axis of the shaft.
  • a grinding container which has a stirring shaft on which a plurality of, for example, disc-shaped grinding elements are arranged.
  • the disk-shaped grinding elements have a plurality of openings introduced in the disk, preferably in a circular shape.
  • the distance of the holes from the shaft center axis corresponds to 1/3 to 1/2 of the cross section of the openings.
  • the disc directly connected to the cylinder, which is also part of the cage, has openings through which the product can flow to the separator.
  • the cylinder itself is provided in the direction of the Mahlguteinlhus with an end wall, which has an axis near the opening to the stirring shaft.
  • individual flow deflection devices in the form of disks, vanes or deflectors can be arranged in the cylinder, which are arranged on the stirrer shaft or on the inside of the cylinder.
  • FIG. 1 shows a grinding container 10, of which only the Mahl currentlyerende is shown.
  • Mahl currentlyerende has a disc-shaped bottom part. In this bottom part is centrally introduced an opening through which the processed product is removed.
  • the stirring shaft 12, which is arranged centrally in the grinding chamber, has a plurality of grinding discs 14 which have circular openings 16.
  • the Separating device consists of several separating gaps that arise between statically arranged split rings.
  • the separating device may be designed from a dynamic separating device with movable separating members.
  • a cage 20 which extends around the separating device 18 in the direction of the grinding container bottom.
  • a cylinder 22 is located between the separating device 18 and the grinding disks 14.
  • the cylinder 22 has a plurality of circular openings 24 through which the auxiliary grinding bodies are conveyed from the axial region of the stirring shaft 12 back into the grinding chamber in the direction of the grinding material inlet.
  • the flow direction of the auxiliary grinding bodies and possibly a part of the ground material is represented by the flow arrows 26.
  • the auxiliary grinding bodies flow radially through the cage 20 back into the grinding chamber and at the same time in the direction of the grinding stock inlet. Due to the multiplicity of apertures 24 in the cylinder 22, an increased pre-classification takes place in front of the separating device 18, whereby a pressure relief of the outlet region is created.
  • the number and arrangement of the apertures 24 in the cylinder 22 is dependent on the size of the Mahlos emotions and the viscosity of the product.
  • the cylinder 4 at the same distance from each other arranged annular arrangements of apertures 24, all of which have the same diameter.
  • the distance between the last grinding disc 14 to the cylinder 22 is less than the disc spacing of the discs with each other.
  • the reduction of the distance of the last disc on the stirrer shaft to the cylinder can be between 25% and 50% of the previously arranged discs.
  • FIG. 2 shows the cylinder 22 with slit-shaped openings 28.
  • the slit-shaped openings 28 are each arranged at the same distance from the separation device, so that the area between the slot-shaped openings and the separation device is designed without openings. Due to the distance which exists between the slots through openings 28 and the cage, the circulation area in which the auxiliary grinding bodies from the region of the separating device 18 increases back into the grinding chamber, into the region of the grinding disks 14 stream.
  • the distance of the slot-shaped openings to the separation device 30 in this case corresponds to 2 to 2.5 times the length of the slot-shaped openings.
  • FIG. 3 shows the execution of the cylinder, wherein in each case two slot-shaped openings are placed together in series.
  • the openings 36 are additionally distributed over the entire circumference of the cylinder.
  • the cylinder has an end wall 32 which has a passage 34 in the region of the stirrer shaft 12 through which product and grinding media flow in the direction of the axial openings 36 which are introduced in the cage bottom 38.
  • the openings 36 in the cage bottom are placed in the area near the Roughwellenober Design. About these breakthroughs 36, an inner circulation flow, which consists of Mahlosterrorismn and regrind produced. This circulation stream is divided in the region of the separating device by the centrifugal action of the cage into a material to be ground and grinding stock / Mahlos redesignstrom, wherein the ground material flows through the screen surface of the separator from the grinding container.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Abstract

The agitator ball mill has a separating device for a grinding auxiliary body, which is assigned to a pre-grading device. The pre- grading device consists of a cylinder (22), which has an aperture (26). The aperture consists of circular holes, oval apertures or slots in the cylinder wall.

Description

Die Erfindung betrifft eine Vorrichtung zum Trennen von Mahlhilfskörpern vom Produkt in einer Rührwerkskugelmühle.The invention relates to a device for separating Mahlhilfskörpern from the product in a stirred ball mill.

Aus der DE 44 12 408 geht hierzu eine Trennvorrichtung hervor, bei der vor der Trennvorrichtung eine Vorklassiereinrichtung angeordnet ist, die die Mahlhilfskörper vor dem Erreichen der Trennvorrichtung zurück in den Mahlraum in Richtung des Mahlbehältereinlasses fließen läßt.From the DE 44 12 408 For this purpose, a separator is apparent in which a pre-classifying device is arranged in front of the separating device, which allows the Mahlhilfskörper flow back into the grinding chamber in the direction of the Mahlbehältereinlasses before reaching the separator.

Aufgabe der Erfindung ist es diese Vorklassiereinrichtung so zu gestalten, daß die Mahlhilfskörper schneller in Richtung Einlaß zurückgeführt werden und die Mahlgut-Mahlhilfskörperkonzentrierung auf einen bestimmten Bereich des Mahlbehälters konzentriert wird.The object of the invention is to make this Vorklassiereinrichtung so that the Mahlhilfskörper be returned faster towards the inlet and the Mahlgut Mahlhilfskörperkonzentrierung is concentrated on a specific area of the grinding container.

Diese Aufgabe wird entsprechend der Erfindung dadurch gelöst, daß unmittelbar vor der Trennvorrichtung ein Zylinder angeordnet ist, der Durchbrüche aufweist. Diese Durchbrüche in Form von kreisförmigen Löchern, ovalen Durchbrüchen oder Schlitzen sind in die Zylinderwandung eingebracht, um ein Abfördern der Mahlhilfskörper zum Teil mit Mahlgut zu ermöglichen.This object is achieved according to the invention in that immediately before the separator, a cylinder is arranged, which has openings. These breakthroughs in the form of circular holes, oval openings or slots are introduced into the cylinder wall in order to allow a removal of Mahlhilfskörper partly with regrind.

Je nachdem welches Produkt mit der Rührwerkskugelmühle bearbeitet wird, kann es erfindungswesentlich sein, wenn das Mahlgut bereits in einem relativ weitem Abstand vor der Trennvorrichtung zur Rückzirkulation veranlaßt wird. Des weiteren kann es erfindungswesentlich sein, wenn zwischen der Trennvorrichtung in Form eines aus dem Stand der Technik bekannten Käfigs und den Durchbrüchen im Zylinder ein Abstand von dem 2- bis 30-fachen, 5- bis 20-fachen, 10- bis 15-fachen des Durchmessers der im Zylinder eingebrachten Durchbrüche frei bleibt.Depending on which product is processed with the agitator ball mill, it may be essential to the invention if the material to be ground is already caused to recirculate in a relatively long distance in front of the separator. Furthermore, it may be essential to the invention if between the separator in the form of a known from the prior art cage and the openings in the cylinder, a distance of 2 to 30 times, 5 to 20 times, 10 to 15 times the diameter of the openings introduced in the cylinder remains free.

Entsprechend einer weiteren Ausgestaltung der Erfindung können die schlitzförmigen Durchbrüche unter einem Winkel von 0 - 45° zur Wellenlängsachse geneigt sein.According to a further embodiment of the invention, the slot-shaped apertures may be inclined at an angle of 0-45 ° to the longitudinal axis of the shaft.

Aus den drei beigefügten Zeichnungen geht das Ende eines Mahlbehälters hervor, das eine Rührwelle aufweist, an der mehrere beispielsweise scheibenförmige Mahlelemente angeordnet sind. Die scheibenförmigen Mahlelemente verfügen über mehrere in der Scheibe eingebrachte Durchbrüche vorzugsweise in Kreisform. Der Abstand der Löcher von der Wellenmittelachse entspricht 1/3 bis 1/2 des Querschnitts der Durchbrüche. Die direkt mit dem Zylinder in Verbindung stehende Scheibe, die auch Teil des Käfigs ist, weist Durchbrüche auf, durch die das Produkt zur Trennvorrichtung strömen kann.From the three appended drawings, the end of a grinding container emerges, which has a stirring shaft on which a plurality of, for example, disc-shaped grinding elements are arranged. The disk-shaped grinding elements have a plurality of openings introduced in the disk, preferably in a circular shape. The distance of the holes from the shaft center axis corresponds to 1/3 to 1/2 of the cross section of the openings. The disc directly connected to the cylinder, which is also part of the cage, has openings through which the product can flow to the separator.

Der Zylinder selbst ist in Richtung zum Mahlguteinlaß mit einer Stirnwand versehen, die eine achsnahe Öffnung zur Rührwelle aufweist.The cylinder itself is provided in the direction of the Mahlguteinlaß with an end wall, which has an axis near the opening to the stirring shaft.

Zur besseren radialen Strömungsführung der Mahlhilfskörper bzw. des Mahlguts können im Zylinder einzelne Strömungsumlenkeinrichtungen in Form von Scheiben, Flügeln oder Abweisern angeordnet sein, die an der Rührwelle oder an der Innenseite des Zylinders angeordnet sind.For better radial flow guidance of the grinding auxiliary bodies or of the ground material, individual flow deflection devices in the form of disks, vanes or deflectors can be arranged in the cylinder, which are arranged on the stirrer shaft or on the inside of the cylinder.

Ausführungsbeispiele der Erfindung sind den Zeichnungen zu entnehmen. Es zeigt:

Figur 1:
Teilansicht des Mahlbehälters mit Rührwelle und Trennvorrichtung mit Vorklassierer
Figur 2:
Teilansicht des Mahlbehälters mit Rührwelle und Trennvorrichtung mit Vorklassierer
Figur 3:
Teilansicht des Mahlbehälters mit Rührwelle und Trennvorrichtung mit Vorklassierer
Embodiments of the invention are apparent from the drawings. It shows:
FIG. 1:
Partial view of the grinding container with stirrer shaft and separator with preclassifier
FIG. 2:
Partial view of the grinding container with stirrer shaft and separator with preclassifier
FIG. 3:
Partial view of the grinding container with stirrer shaft and separator with preclassifier

Die Figur 1 zeigt einen Mahlbehälter 10, von dem nur das Mahlbehälterende dargestellt ist. Das Mahlbehälterende verfügt über ein scheibenförmiges Bodenteil. In diesem Bodenteil ist zentrisch eine Öffnung eingebracht, durch die das bearbeitete Produkt abgeführt wird. Die Rührwelle 12, die zentrisch im Mahlraum angeordnet ist, verfügt über mehrere Mahlscheiben 14, die kreisförmige Durchbrüche 16 aufweisen.The FIG. 1 shows a grinding container 10, of which only the Mahlbehälterende is shown. The Mahlbehälterende has a disc-shaped bottom part. In this bottom part is centrally introduced an opening through which the processed product is removed. The stirring shaft 12, which is arranged centrally in the grinding chamber, has a plurality of grinding discs 14 which have circular openings 16.

Zwischen der Trennvorrichtung 18 und den Mahlscheiben 14 ist an dem Käfig 20, der um die Trennvorrichtung angeordnet ist, ein Zylinder 22 angesetzt. Die Trennvorrichtung besteht aus mehreren Trennspalten, die zwischen statisch angeordneten Spaltringen entstehen. Ebenso kann die Trennvorrichtung aus einer dynamischen Trennvorrichtung mit beweglichen Trenngliedern gestaltet sein.Between the separating device 18 and the grinding disks 14, a cylinder 22 is attached to the cage 20, which is arranged around the separating device. The Separating device consists of several separating gaps that arise between statically arranged split rings. Likewise, the separating device may be designed from a dynamic separating device with movable separating members.

Am Ende der Rührwelle sitzt ein Käfig 20, der sich um die Trennvorrichtung 18 in Richtung zum Mahlbehälterboden erstreckt. Zwischen der Trennvorrichtung 18 und den Mahlscheiben 14 befindet sich ein Zylinder 22. Der Zylinder 22 weist mehrere kreisförmige Durchbrüche 24 auf, durch die die Mahlhilfskörper aus dem axialen Bereich der Rührwelle 12 in den Mahlraum zurück in Richtung Mahlguteinlaß gefördert werden.At the end of the stirring shaft sits a cage 20, which extends around the separating device 18 in the direction of the grinding container bottom. A cylinder 22 is located between the separating device 18 and the grinding disks 14. The cylinder 22 has a plurality of circular openings 24 through which the auxiliary grinding bodies are conveyed from the axial region of the stirring shaft 12 back into the grinding chamber in the direction of the grinding material inlet.

Die Strömungsrichtung der Mahlhilfskörper und möglicherweise ein Teil des Mahlguts ist durch die Strömungspfeile 26 dargestellt. Wie der Strömungspfeil 26 im Bereich der Trennvorrichtung 18 zeigt, fließen die Mahlhilfskörper radial durch den Käfig 20 zurück in den Mahlraum und gleichzeitig in Richtung zum Mahlguteinlaß. Durch die Vielzahl der Durchbrüche 24 im Zylinder 22 findet eine verstärkte Vorklassierung vor der Trennvorrichtung 18 statt, wodurch eine Druckentlastung des Auslaßbereichs entsteht. Die Anzahl und Anordnung der Durchbrüche 24 im Zylinder 22 ist abhängig von der Größe der Mahlhilfskörper und der Viskosität des Produkts.The flow direction of the auxiliary grinding bodies and possibly a part of the ground material is represented by the flow arrows 26. As the flow arrow 26 in the region of the separating device 18 shows, the auxiliary grinding bodies flow radially through the cage 20 back into the grinding chamber and at the same time in the direction of the grinding stock inlet. Due to the multiplicity of apertures 24 in the cylinder 22, an increased pre-classification takes place in front of the separating device 18, whereby a pressure relief of the outlet region is created. The number and arrangement of the apertures 24 in the cylinder 22 is dependent on the size of the Mahlhilfskörper and the viscosity of the product.

Im Ausführungsbeispiel Figur 1 weist der Zylinder 4 im gleichen Abstand zueinander angeordnete ringförmige Anordnungen von Durchbrüchen 24 auf, die allesamt den gleichen Durchmesser besitzen. Der Abstand der letzten Mahlscheibe 14 zum Zylinder 22 ist geringer als der Scheibenabstand der Scheiben untereinander. Die Reduzierung des Abstands der letzten Scheibe auf der Rührwelle zum Zylinder kann zwischen 25% und 50% der zuvor angeordneten Scheiben betragen.In the embodiment FIG. 1 the cylinder 4 at the same distance from each other arranged annular arrangements of apertures 24, all of which have the same diameter. The distance between the last grinding disc 14 to the cylinder 22 is less than the disc spacing of the discs with each other. The reduction of the distance of the last disc on the stirrer shaft to the cylinder can be between 25% and 50% of the previously arranged discs.

Ausführungsbeispiel Figur 2 zeigt den Zylinder 22 mit schlitzförmigen Durchbrüchen 28. Die schlitzförmigen Durchbrüche 28 sind hier jeweils im gleichen Abstand zur Trennvorrichtung angeordnet, so daß der Bereich zwischen den schlitzförmigen Öffnungen und der Trennvorrichtung ohne Durchbrüche ausgeführt ist. Durch den Abstand, der zwischen den Schlitzen Durchbrüchen 28 und dem Käfig besteht, vergrößert sich der Zirkulationsbereich in dem die Mahlhilfskörper aus dem Bereich der Trennvorrichtung 18 zurück in den Mahlraum, in den Bereich der Mahlscheiben 14 strömen. Der Abstand der schlitzförmigen Durchbrüche zur Trennvorrichtung 30 entspricht in diesem Fall dem 2- bis 2,5-Fachen der Länger der schlitzförmigen Durchbrüche.embodiment FIG. 2 shows the cylinder 22 with slit-shaped openings 28. The slit-shaped openings 28 are each arranged at the same distance from the separation device, so that the area between the slot-shaped openings and the separation device is designed without openings. Due to the distance which exists between the slots through openings 28 and the cage, the circulation area in which the auxiliary grinding bodies from the region of the separating device 18 increases back into the grinding chamber, into the region of the grinding disks 14 stream. The distance of the slot-shaped openings to the separation device 30 in this case corresponds to 2 to 2.5 times the length of the slot-shaped openings.

Figur 3 zeigt die Ausführung des Zylinders, wobei jeweils in Reihe zwei schlitzförmige Durchbrüche aneinander gesetzt sind. Die Durchbrüche 36 sind zusätzlich über den gesamten Umfang des Zylinders verteilt angeordnet. Bei dieser Ausführung verfügt der Zylinder über eine Stirnwand 32, die im Bereich der Rührwelle 12 einen Durchlaß 34 aufweist, durch den Produkt und Mahlkörper in Richtung der axialen Durchbrüche 36 strömen, die im Käfigboden 38 eingebracht sind. FIG. 3 shows the execution of the cylinder, wherein in each case two slot-shaped openings are placed together in series. The openings 36 are additionally distributed over the entire circumference of the cylinder. In this embodiment, the cylinder has an end wall 32 which has a passage 34 in the region of the stirrer shaft 12 through which product and grinding media flow in the direction of the axial openings 36 which are introduced in the cage bottom 38.

Die Durchbrüche 36 im Käfigboden sind im Bereich nahe der Rührwellenoberfläche plaziert. Über diese Durchbrüche 36 wird ein innerer Zirkulationsstrom, der aus Mahlhilfskörpern und Mahlgut besteht, erzeugt. Dieser Zirkulationsstrom teilt sich im Bereich der Trennvorrichtung durch die zentrifugale Wirkung des Käfigs in einen Mahlgut und Mahlgut/Mahlhilfskörperstrom auf, wobei das Mahlgut über die Siebfläche der Trennvorrichtung aus dem Mahlbehälter fließt.The openings 36 in the cage bottom are placed in the area near the Rührwellenoberfläche. About these breakthroughs 36, an inner circulation flow, which consists of Mahlhilfskörpern and regrind produced. This circulation stream is divided in the region of the separating device by the centrifugal action of the cage into a material to be ground and grinding stock / Mahlhilfskörperstrom, wherein the ground material flows through the screen surface of the separator from the grinding container.

BezugsziffernlisteReferences list

1010
MahlbehälterendeMahlbehälterende
1212
Rührwelleagitator shaft
1414
Mahlscheibengrinding discs
1616
Durchbruchbreakthrough
1818
Trennvorrichtungseparating device
2020
KäfigCage
2222
Zylindercylinder
2424
Durchbrüchebreakthroughs
2626
Strömungspfeileflow arrows
2828
Durchbrüchebreakthroughs
3030
Trennvorrichtungseparating device
3232
Stirnwandbulkhead
3434
DurchlaßPassage
3636
Durchbrüchebreakthroughs
3838
Käfigbodencage floor

Claims (9)

Rührwerkskugelmühle mit einer Trennvorrichtung (30) für Mahlhilfskörper, der eine Vorklassiereinrichtung zugeordnet ist,
dadurch gekennzeichnet,
daß die Vorklassiereinrichtung aus einem Zylinder (22) besteht, der Durchbrüche (26, 28) aufweist.Agitator ball mill with a separating device (30) for grinding auxiliary bodies, which is assigned a pre-classifying device,
characterized,
in that the pre-classifying device consists of a cylinder (22) which has openings (26, 28). Rührwerkskugelmühle nach Anspruch 1,
dadurch gekennzeichnet,
daß die Durchbrüche (26, 28) aus kreisförmigen Löchern, ovalen Durchbrüchen oder Schlitzen in der Zylinderwandung bestehen.Agitator ball mill according to claim 1,
characterized,
that the openings (26, 28) consist of circular holes, oval openings or slots in the cylinder wall. Rührwerkskugelmühle nach Anspruch 2,
dadurch gekennzeichnet,
daß zwischen der Trennvorrichtung (30) und den Durchbrüchen (26, 28) im Zylinder (22) ein Abstand vom 2- bis 30-fachen des Durchmessers der im Zylinder eingebrachten Durchbrüchen besteht.Agitator ball mill according to claim 2,
characterized,
that between the separating device (30) and the openings (26, 28) in the cylinder (22) is a distance of 2 to 30 times the diameter of the openings introduced in the cylinder. Rührwerkskugelmühle nach Anspruch 2,
dadurch gekennzeichnet,
daß zwischen der Trennvorrichtung (30) und den Durchbrüchen (26, 28) im Zylinder (22) ein Abstand vom 5- bis 20-fachen des Durchmessers der im Zylinder eingebrachten Durchbrüchen besteht.Agitator ball mill according to claim 2,
characterized,
that between the separating device (30) and the openings (26, 28) in the cylinder (22) is a distance of 5 to 20 times the diameter of the openings introduced in the cylinder. Rührwerkskugelmühle nach Anspruch 2,
dadurch gekennzeichnet,
daß zwischen der Trennvorrichtung (30) und den Durchbrüchen (26, 28) im Zylinder (22) ein Abstand vom 10- bis 15-fachen des Durchmessers der im Zylinder eingebrachten Durchbrüchen besteht.Agitator ball mill according to claim 2,
characterized,
that between the separating device (30) and the openings (26, 28) in the cylinder (22) there is a distance of 10 to 15 times the diameter of the openings introduced in the cylinder. Rührwerkskugelmühle nach Anspruch 2,
dadurch gekennzeichnet,
daß die schlitzförmigen Durchbrüche (28) unter einem Winkel von 0 - 45° zur Wellenlängsachse geneigt sind.Agitator ball mill according to claim 2,
characterized,
that the slot-shaped openings (28) at an angle of 0 - 45 ° inclined to the shaft longitudinal axis. Rührwerkskugelmühle nach Anspruch 2,
dadurch gekennzeichnet,
daß der Abstand der Durchbrüche (26, 28) im Zylinder (22) zur Wellenmittelachse ein Drittel bis zur Hälfte des Querschnitts der Durchbrüche beträgt.Agitator ball mill according to claim 2,
characterized,
that the distance of the openings (26, 28) in the cylinder (22) to the shaft center axis is one third to half of the cross section of the openings. Rührwerkskugelmühle nach Anspruch 1,
dadurch gekennzeichnet,
daß der Zylinder (22) in Richtung zum Mahlguteinlaß mit einer Stirnwand (32) versehen ist, die eine achsnahe Öffnung zur Rührwelle aufweist.Agitator ball mill according to claim 1,
characterized,
in that the cylinder (22) is provided in the direction of the grinding stock inlet with an end wall (32) which has an opening near the axis of the stirring shaft. Rührwerkskugelmühle nach Anspruchs 1,
dadurch gekennzeichnet,
daß innerhalb des Zylinders (22) einzelne Strömungsumlenkeinrichtungen in Form von Scheiben, Flügeln oder Abweisern an der Rührwelle oder der Innenseite des Zylinders angeordnet sind.Agitator ball mill according to claim 1,
characterized,
in that individual flow deflection devices in the form of disks, vanes or deflectors are arranged within the cylinder (22) on the stirrer shaft or the inside of the cylinder.
EP08004262.5A 2007-03-15 2008-03-07 Agitator ball mill Withdrawn EP1970124A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710012526 DE102007012526A1 (en) 2007-03-15 2007-03-15 stirred ball mill

Publications (2)

Publication Number Publication Date
EP1970124A2 true EP1970124A2 (en) 2008-09-17
EP1970124A3 EP1970124A3 (en) 2014-06-18

Family

ID=39485087

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08004262.5A Withdrawn EP1970124A3 (en) 2007-03-15 2008-03-07 Agitator ball mill

Country Status (3)

Country Link
EP (1) EP1970124A3 (en)
CN (1) CN201231163Y (en)
DE (1) DE102007012526A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010053484A1 (en) * 2010-12-04 2012-06-06 Netzsch-Feinmahltechnik Gmbh Dynamic element for the separator of a stirred ball mill
CN103433112A (en) * 2013-08-07 2013-12-11 戴启彬 Discharge port of stone breaker
WO2014187824A1 (en) 2013-05-21 2014-11-27 Flsmidth A/S Methods and apparatus for the continuous monitoring of wear in grinding circuits
ITTO20131004A1 (en) * 2013-12-09 2015-06-10 Luca Drocco IMPELLER FOR A MILLING AND MILLING CHAMBER FOR ASSOCIATED FLUIDS.
CN112024060A (en) * 2020-09-18 2020-12-04 广州京驰精工机械设备有限公司 Large-traffic developments prevent stifled piece-rate system

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WO2014187824A1 (en) 2013-05-21 2014-11-27 Flsmidth A/S Methods and apparatus for the continuous monitoring of wear in grinding circuits
CN103433112A (en) * 2013-08-07 2013-12-11 戴启彬 Discharge port of stone breaker
ITTO20131004A1 (en) * 2013-12-09 2015-06-10 Luca Drocco IMPELLER FOR A MILLING AND MILLING CHAMBER FOR ASSOCIATED FLUIDS.
CN112024060A (en) * 2020-09-18 2020-12-04 广州京驰精工机械设备有限公司 Large-traffic developments prevent stifled piece-rate system

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