EP2886198A1 - Operating method for a ball mill and ball mill therefor - Google Patents

Operating method for a ball mill and ball mill therefor Download PDF

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Publication number
EP2886198A1
EP2886198A1 EP14004298.7A EP14004298A EP2886198A1 EP 2886198 A1 EP2886198 A1 EP 2886198A1 EP 14004298 A EP14004298 A EP 14004298A EP 2886198 A1 EP2886198 A1 EP 2886198A1
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EP
European Patent Office
Prior art keywords
grinding
mill
product outlet
discharge nozzle
media
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Granted
Application number
EP14004298.7A
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German (de)
French (fr)
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EP2886198B1 (en
Inventor
Lars-Peter Weiland
Roland Nied
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Netzsch Trockenmahltechnik GmbH
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Netzsch Trockenmahltechnik GmbH
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Publication of EP2886198A1 publication Critical patent/EP2886198A1/en
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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
    • B02C17/10—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 with one or a few disintegrating members arranged in the container
    • 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
    • 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
    • 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
    • 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
    • B02C17/184—Discharging devices combined with sorting or separating of material with separator arranged in discharge path of crushing zone

Definitions

  • the present invention relates to a method of operating a media mill such as e.g. an agitator ball mill, according to the preamble of claim 1 and a grinding media mill for carrying out this Befriebsvons according to the preamble of claim. 6
  • a media mill such as e.g. an agitator ball mill
  • An agitator ball mill known from practice which is an example of a grinding mill in general 1 and in the Fig. 2 schematically illustrates in a sectional view, contains a surrounded by a housing 2 grinding chamber 3, is supplied to be comminuted by a product inlet 4 regrind 5.
  • grinding media 6 and a stirrer 7 are included with a rotor 8, the rotation of which ensures the intensive movement of the grinding media 6, whereby the comminuted material to be comminuted 5 is comminuted.
  • a particular co-rotating separator 9 which serves the separation between on the one hand Mahl Sciencesn 6 and further to be comminuted material 5 and on the other hand finished ground regrind 10 and a product outlet 11 in the housing 2 is connected upstream.
  • the separating device 9 is formed, for example, by a bladed rotor body 12, which rotates together with the rotor 8, and designed and operated so that it or he Mahl stresses 6 is not allowed to let by the separator 9 in particular by the size of the spaces between the Blades 13 of the bladed rotor body 12 and the rotational movement of the bladed rotor body 12 rejects the grinding media 6 and thus prevents it from passing through the separator 9 from the grinding chamber 3 into the product outlet 11.
  • the aim of the present invention is to improve a grinding media mill in such a way that a grinding media loss at the product outlet is reduced or avoided in a simple manner.
  • This object is achieved according to the invention with an operating method for a grinding media mill according to claim 1 and a grinding media mill according to claim 6.
  • the invention provides an operating method for a grinding mill having a housing surrounding a grinding chamber, are arranged in the grinding medium and set in motion for grinding a material to be ground grinding in motion, and a product inlet and a product outlet contains, between which the millbase to be ground flows through the moving grinding media, being prevented by a product outlet upstream of the separator grinding media in normal operation of the media mill at the exit from the grinding chamber into the product outlet.
  • the discharge nozzle is inclined relative to the horizontal by 2 ° to 15 °, in particular by 3 ° to 10 ° and particularly preferably by 4 ° to 6 ° upwards.
  • the media mill is an agitator ball mill.
  • the invention also provides a grinding mill with a housing surrounding a grinding chamber, arranged in the grinding body and are set in motion for grinding a material to be ground grinding in motion, and contains a product inlet and a product outlet, between which the millbase to be ground through which moving Mahl stresses flows, wherein the product outlet is preceded by a separator which is designed to prevent grinding media in the normal operation of the MahlSystemmühle at the exit from the grinding chamber into the product outlet.
  • the product outlet is followed by a discharge nozzle, which is inclined upwards relative to the horizontal
  • the separator comprises a rotor body upstream of the product outlet, which rotates during operation and thereby acts on the grinding media radially outward, so that in the As the result of the inclination of the discharge nozzle with respect to the horizontal upwards, the grinding media passes out of the discharge nozzle through the product outlet into the rotor body and, on renewed operation of the grinding media mill, is conveyed back into the grinding chamber as a result of the rotation of the rotor body.
  • the discharge nozzle is inclined relative to the horizontal by 2 ° to 15 °, in particular by 3 ° to 10 ° and particularly preferably by 4 ° to 6 ° upwards.
  • the media mill may be an agitator ball mill.
  • the first embodiment of a grinding mill 1 according to the Fig. 1 Contains alike and also in accordance with the grinding mill 1 according to the prior art in the Fig. 2 the grinding chamber 3 surrounded by the housing 2, into which the grinding stock 5 to be comminuted is introduced through the product inlet 4.
  • the grinding media 6 and the agitator 7 are included with the rotor 8, the rotation of which ensures the intensive movement of the grinding media 6, whereby the comminuted material to be comminuted 5 is comminuted.
  • the particular co-rotating separator 9 serves the separation between on the one hand Mahl Sciencesn 6 and further to be comminuted material to be ground 5 and on the other hand finished ground regrind 10 and the product outlet 11 in the housing 2 is connected upstream.
  • the grinding mill 1 according to the Fig. 1 and 2 is an agitating ball mill, which although a particularly preferred application of the invention, but is not limited thereto.
  • the separator 9 is formed in such a stirred ball mill 1, for example, by the bladed rotor body 12 which rotates together with the rotor 8, and designed and operated so that they or he grinding media 6 is not allowed to pass by the separator 9 in particular by the Size of the spaces between the blades 13 of the bladed rotor body 12 and the rotational movement of the bladed rotor body 12 rejects the grinding media 6 and thus prevents the passage through the separator 9 from the grinding chamber 3 in the product outlet 11.
  • Such grinding media escaped from the grinding chamber 3 must, on the one hand, be removed separately from the finished ground grinding material 10 in the case of grinding body mills 1 according to the state of the art, if possible without obstructing a continuous flow of grinding material.
  • the filling of the grinding chamber 3 with grinding media on a On the other hand, again and again grinding media must be refilled, for which complex determinations and monitoring of the corresponding grinding media filling quantity are required. This all adds additional effort in the operation of a grinding mill.
  • the present invention provides a remedy by the product outlet 11, a discharge nozzle 14 is connected downstream, which is inclined relative to the horizontal.
  • This inclination of the discharge nozzle 14 is in the grinding media mill 1 of the first embodiment according to the Fig. 1 up.
  • the discharge nozzle 14 is inclined relative to the horizontal by 2 ° to 15 °, in particular by 3 ° to 10 ° and particularly preferably by 4 ° to 6 ° upwards.
  • the discharge nozzle 14 is inclined upwards or upwards relative to the horizontal, and that the separating device 9 contains the rotor body 12 connected upstream of the product outlet 11, which rotates during operation and thereby acts on the grinding media 6 radially outwards, so that the discharge nozzle 14 arrived grinding body 6 due to the inclination of the Austragsstutzens 14 relative to the horizontal upwards at a standstill of the grinding mill 1 from the discharge port 14 through the product outlet 11 are passed into the rotor body 12 and upon renewed operation of the MahlSystemmühle 1 due to the rotation of the rotor body 12 back into the grinding chamber 3 are transported.
  • an operating method for a grinding mill mill 1 of the first embodiment according to the Fig. 1 in that the grinding bodies which have passed further through the product outlet 11 through the separating device 9 pass into the upwardly inclined discharge nozzle 14, from where they are conducted from the discharge nozzle 14 through the product outlet 11 into a rotor body 12 of the separating device 9 when the grinding body mill 1 is at a standstill and upon renewed operation of the grinding mill 1 due to the rotation of the rotor body 12 are transported back into the grinding chamber 3.
  • the design of the first embodiment of the grinding mill 1 with the upwardly inclined discharge nozzle 14 is of particular advantage that without further facilities and measures alone by utilizing gravity within the upwardly inclined discharge nozzle 14, in any case when the transport flow through the product outlet 11 becomes smaller when switching off the grinding media mill 1 and finally disappears, the erroneously escaped from the grinding chamber 3 through the product outlet 11 in the discharge nozzle 14 grinding media 6 automatically slip back through the product outlet 11 in the separator 9 or rolls.
  • the recirculated grinding bodies 6 thus again enter the grinding chamber 3 at the discharge end, ie in the region of the product outlet 11, and are thus returned to the grinding process and from then on participate in the grinding process.

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

Abstract

Die Erfindung betrifft ein Betriebsverfahren für eine Mahlkörpermühle (1) mit einem Gehäuse (2), das einen Mahlraum (3) umgibt, in dem Mahlkörper (6) angeordnet und im Normalbetrieb zum Mahlen eines zu mahlenden Mahlgutes (5) in Bewegung versetzt werden, und einen Produkteinlass (4) sowie einen Produktauslass (11) enthält, zwischen denen das zu mahlende Mahlgut (5) durch die sich bewegenden Mahlkörper (6) strömt, wobei durch eine dem Produktauslass (11) vorgeschaltete Trenneinrichtung (9) Mahlkörper (6) im Normalbetrieb der Mahlkörpermühle (1) am Austritt aus dem Mahlraum (3) in den Produktauslass (11) gehindert werden, und wobei ferner durch die Trenneinrichtung (9) weiter durch den Produktauslass (11) gelangte Mahlkörper in einen nach oben geneigten Austragsstutzen (14) gelangen, von wo sie im Stillstand der Mahlkörpermühle (1) aus dem Austragsstutzen (14) durch den Produktauslass (11) in einen Rotorkörper (12) der Trenneinrichtung (9) geleitet werden und bei erneuter Betriebsaufnahme der Mahlkörpermühle (1) infolge der Drehung des Rotörkörpers (12) zurück in den Mahlraum (3) befördert werden. Ferner betrifft die Erfindung eine solche Mahlkörpermühle (1) zur Durchführung dieses Verfahrens.The invention relates to an operating method for a grinding body mill (1) with a housing (2) surrounding a grinding chamber (3), arranged in the grinding body (6) and set in motion during normal operation for grinding a ground material to be ground (5), and a product inlet (4) and a product outlet (11), between which the grinding stock (5) to be ground flows through the moving grinding bodies (6), wherein grinding bodies (6) pass through a separating device (9) upstream of the product outlet (11). in the normal operation of the grinding mill (1) at the exit from the grinding chamber (3) are prevented in the product outlet (11), and further by the separating device (9) further through the product outlet (11) reached Mahlkörper in an upwardly inclined discharge nozzle (14 ), from where they are passed at a standstill of the grinding media mill (1) from the discharge nozzle (14) through the product outlet (11) in a rotor body (12) of the separating device (9) and at renewed Operating record of the grinding mill (1) due to the rotation of the rotor body (12) are transported back into the grinding chamber (3). Furthermore, the invention relates to such a grinding mill (1) for carrying out this method.

Description

Die vorliegende Erfindung betrifft ein Betriebsverfahren für eine Mahlkörpermühle, wie z.B. eine Rührwerkskugelmühle, nach dem Oberbegriff des Anspruchs 1 sowie eine Mahlkörpermühle zur Durchführung dieses Befriebsverfahrens nach dem Oberbegriff des Anspruchs 6.The present invention relates to a method of operating a media mill such as e.g. an agitator ball mill, according to the preamble of claim 1 and a grinding media mill for carrying out this Befriebsverfahrens according to the preamble of claim. 6

Eine aus der Praxis bekannte Rührwerkskugelmühle, die ein Beispiel für allgemein eine Mahlkörpermühle 1 ist und in der Fig. 2 schematisch in einer Schnittansicht verdeutlicht ist, enthält einen von einem Gehäuse 2 umgebenen Mahlraum 3, in den durch einen Produkteinlass 4 zu zerkleinerndes Mahlgut 5 zugeführt wird. In dem Mahlraum 3 sind Mahlkörper 6 und ein Rührwerk 7 mit einem Rotor 8 enthalten, dessen Rotation für die intensive Bewegung der Mahlkörper 6 sorgt, wodurch das zu zerkleinernde Mahlgut 5 zerkleinert wird. Am axialen Ende des Rotors 8 befindet sich eine insbesondere mitdrehende Trenneinrichtung 9, die der Trennung zwischen einerseits Mahlkörpern 6 und noch weiter zu zerkleinerndem Mahlgut 5 sowie andererseits fertig gemahlenem Mahlgut 10 dient und einem Produktauslass 11 in dem Gehäuse 2 vorgeschaltet ist.An agitator ball mill known from practice, which is an example of a grinding mill in general 1 and in the Fig. 2 schematically illustrates in a sectional view, contains a surrounded by a housing 2 grinding chamber 3, is supplied to be comminuted by a product inlet 4 regrind 5. In the grinding chamber 3 grinding media 6 and a stirrer 7 are included with a rotor 8, the rotation of which ensures the intensive movement of the grinding media 6, whereby the comminuted material to be comminuted 5 is comminuted. At the axial end of the rotor 8 is a particular co-rotating separator 9, which serves the separation between on the one hand Mahlkörpern 6 and further to be comminuted material 5 and on the other hand finished ground regrind 10 and a product outlet 11 in the housing 2 is connected upstream.

Die Trenneinrichtung 9 wird beispielsweise durch einen beschaufelten Rotorkörper 12 gebildet, der sich zusammen mit dem Rotor 8 dreht, und so gestaltet und betrieben, dass sie bzw. er Mahlkörper 6 nicht durchlassen soll, indem die Trenneinrichtung 9 insbesondere durch die Größe der Zwischenräume zwischen den Schaufeln 13 des beschaufelten Rotorkörpers 12 sowie die Drehbewegung des beschaufelten Rotorkörpers 12 die Mahlkörper 6 abweist und damit am Durchgang durch die Trenneinrichtung 9 aus dem Mahlraum 3 in den Produktauslass 11 hindert. Während bei Normalbetrieb der Mühle schon die Rotation der Trenneinrichtung 9 dafür sorgt, dass Mahlkörper 6 zuverlässig überwiegend daran gehindert werden, die Trenneinrichtung 9 zu durchqueren und die Mahlkörpermühle 1 bzw. deren Mahlraum 3 durch den Produktauslass 11 zu verlassen, kommt es besonders in Abbremsphasen des Rotors 8 dazu, dass vereinzelt Mahlkörper 6 infolge der geringeren Drehgeschwindigkeit des Rotors 8 und damit des beschaufelten Rotorkörpers 12 der Trenneinrichtung 9 durch letztere aus dem Mahlraum 3 in den Produktauslass 11 gelangen. Dies kann aber auch im Normalbetrieb erfolgen, wenn die Abmessungen von Mahlkörpern 6 verschleißbedingt abgenommen haben.The separating device 9 is formed, for example, by a bladed rotor body 12, which rotates together with the rotor 8, and designed and operated so that it or he Mahlkörper 6 is not allowed to let by the separator 9 in particular by the size of the spaces between the Blades 13 of the bladed rotor body 12 and the rotational movement of the bladed rotor body 12 rejects the grinding media 6 and thus prevents it from passing through the separator 9 from the grinding chamber 3 into the product outlet 11. While during normal operation of the mill already the rotation of the separator 9 ensures that grinding media 6 are reliably prevented mainly from passing through the separator 9 and leave the grinding mill 1 and their grinding chamber 3 through the product outlet 11, it comes especially in Abbremsphasen the rotor 8 to the fact that some grinding media 6 due to the lower rotational speed of the rotor 8 and thus the bladed rotor body 12 of the separator 9 through the latter from the grinding chamber 3 in the product outlet 11 arrive. But this can also be done in normal operation, if the dimensions of grinding media 6 have decreased due to wear.

Solche aus dem Mahlraum 3 entkommene Mahlkörper müssen einerseits gesondert aus dem fertig gemahlenen Mahlgut 10 entfernt werden, und zwar möglichst ohne einen kontinuierlichen Mahlgutstrom zu behindern. Um trotz dadurch auftretender Mahlkörperverluste die Füllung des Mahlraums 3 mit Mahlkörper auf einer vorgegebenen Menge zu halten, müssen andererseits auch immer wieder Mahlkörper nachgefüllt werden, wozu aufwendige Bestimmungen und Überwachungen der entsprechenden Mahlkörperfüllmenge erforderlich sind. Dies alles bereitet zusätzlichen Aufwand beim Betrieb einer Mahlkörpermühle.On the one hand, such grinding media escaping from the grinding chamber 3 have to be removed separately from the finished ground grinding material 10, if possible without obstructing a continuous flow of grinding material. In order to keep the filling of the grinding chamber 3 with grinding media to a predetermined amount in spite of the grinding media losses that occur as a result, on the other hand grinding media must be refilled again and again, for which complex determinations and monitoring of the corresponding grinding media filling quantity are required. This all adds additional effort in the operation of a grinding mill.

Die Rückführung von Mahlkörpern ist in der DE 27 44 802 A1 und in der US 2 332 701 A offenbart, allerdings mit erheblichem Aufwand. Die DE 24 46 341 A1 und die DE 31 31 370 A1 befassen sich mit Rührwerkskugelmühlen allgemein. Allen diesen Mühlen fehlt eine sich mitdrehende Trenneinrichtung vor einem Produktauslass.The recycling of grinding media is in the DE 27 44 802 A1 and in the US 2 332 701 A revealed, but with considerable effort. The DE 24 46 341 A1 and the DE 31 31 370 A1 deal with agitator ball mills in general. All of these mills lack a co-rotating separator in front of a product outlet.

Ziel der vorliegenden Erfindung ist es, eine Mahlkörpermühle derart zu verbessern, dass auf einfache Weise ein Mahlkörperverlust am Produktauslass reduziert oder vermieden wird.The aim of the present invention is to improve a grinding media mill in such a way that a grinding media loss at the product outlet is reduced or avoided in a simple manner.

Dieses Ziel wird erfindungsgemäß mit einem Betriebsverfahren für eine Mahlkörpermühle nach dem Anspruch 1 sowie einer Mahlkörpermühle nach dem Anspruch 6.This object is achieved according to the invention with an operating method for a grinding media mill according to claim 1 and a grinding media mill according to claim 6.

Entsprechend schafft die Erfindung ein Betriebsverfahren für eine Mahlkörpermühle mit einem Gehäuse, das einen Mahlraum umgibt, in dem Mahlkörper angeordnet und im Normalbetrieb zum Mahlen eines zu mahlenden Mahlgutes in Bewegung versetzt werden, und einen Produkteinlass sowie einen Produktauslass enthält, zwischen denen das zu mahlende Mahlgut durch die sich bewegenden Mahlkörper strömt, wobei durch eine dem Produktauslass vorgeschaltete Trenneinrichtung Mahlkörper im Normalbetrieb der Mahlkörpermühle am Austritt aus dem Mahlraum in den Produktauslass gehindert werden. Erfindungsgemäß ist weiter vorgesehen, dass durch die Trenneinrichtung weiter durch den Produktauslass gelangte Mahlkörper in einen nach oben geneigten Austragsstutzen gelangen, von wo sie im Stillstand der Mahlkörpermühle aus dem Austragsstutzen durch den Produktauslass in einen Rotorkörper der Trenneinrichtung geleitet werden und bei erneuter Betriebsaufnahme der Mahlkörpermühle infolge der Drehung des Rotorkörpers zurück in den Mahlraum befördert werden.Accordingly, the invention provides an operating method for a grinding mill having a housing surrounding a grinding chamber, are arranged in the grinding medium and set in motion for grinding a material to be ground grinding in motion, and a product inlet and a product outlet contains, between which the millbase to be ground flows through the moving grinding media, being prevented by a product outlet upstream of the separator grinding media in normal operation of the media mill at the exit from the grinding chamber into the product outlet. According to the invention it is further provided that by Separator further passed through the product outlet reached grinding in an upwardly inclined discharge nozzle, from where they are passed at a standstill Mahlkörpermühle from the discharge nozzle through the product outlet in a rotor body of the separator and on renewed operation of the Mahlkörpermühle as a result of rotation of the rotor body back into the grinding chamber to get promoted.

Vorzugsweise ist der Austragsstutzen gegenüber der Horizontalen um 2° bis 15°, insbesondere um 3° bis 10° und besonders bevorzugt um 4° bis 6° nach oben geneigt.Preferably, the discharge nozzle is inclined relative to the horizontal by 2 ° to 15 °, in particular by 3 ° to 10 ° and particularly preferably by 4 ° to 6 ° upwards.

Noch eine weitere bevorzugte Gestaltung besteht darin, dass die Mahlkörpermühle eine Rührwerkskugelmühle ist.Yet another preferred design is that the media mill is an agitator ball mill.

Die Erfindung schafft auch eine Mahlkörpermühle mit einem Gehäuse, das einen Mahlraum umgibt, in dem Mahlkörper angeordnet und im Normalbetrieb zum Mahlen eines zu mahlenden Mahlgutes in Bewegung versetzt werden, und einen Produkteinlass sowie einen Produktauslass enthält, zwischen denen das zu mahlende Mahlgut durch die sich bewegenden Mahlkörper strömt, wobei dem Produktauslass eine Trenneinrichtung vorgeschaltet ist, die ausgelegt ist, um Mahlkörper im Normalbetrieb der Mahlkörpermühle am Austritt aus dem Mahlraum in den Produktauslass zu hindern. Erfindungsgemäß ist dabei weiter vorgesehen, dass dem Produktauslass ein Austragsstutzen nachgeschaltet ist, der gegenüber der Horizontalen nach oben geneigt ist, und dass die Trenneinrichtung einen dem Produktauslass vorgeschalteten Rotorkörper enthält, der sich im Betrieb dreht und dadurch Mahlkörper radial auswärts beaufschlagt, so dass in den Austragsstutzen gelangte Mahlkörper infolge der Neigung des Austragsstutzens gegenüber der Horizontalen nach oben im Stillstand der Mahlkörpermühle aus dem Austragsstutzen durch den Produktauslass in den Rotorkörper geleitet werden und bei erneuter Betriebsaufnahme der Mahlkörpermühle infolge der Drehung des Rotorkörpers zurück in den Mahlraum befördert werden.The invention also provides a grinding mill with a housing surrounding a grinding chamber, arranged in the grinding body and are set in motion for grinding a material to be ground grinding in motion, and contains a product inlet and a product outlet, between which the millbase to be ground through which moving Mahlkörper flows, wherein the product outlet is preceded by a separator which is designed to prevent grinding media in the normal operation of the Mahlkörpermühle at the exit from the grinding chamber into the product outlet. According to the invention it is further provided that the product outlet is followed by a discharge nozzle, which is inclined upwards relative to the horizontal, and that the separator comprises a rotor body upstream of the product outlet, which rotates during operation and thereby acts on the grinding media radially outward, so that in the As the result of the inclination of the discharge nozzle with respect to the horizontal upwards, the grinding media passes out of the discharge nozzle through the product outlet into the rotor body and, on renewed operation of the grinding media mill, is conveyed back into the grinding chamber as a result of the rotation of the rotor body.

Eine bevorzugte Weiterbildung davon besteht darin, dass der Austragsstutzen gegenüber der Horizontalen um 2° bis 15°, insbesondere um 3° bis 10° und besonders bevorzugt um 4° bis 6° nach oben geneigt ist.A preferred development of this is that the discharge nozzle is inclined relative to the horizontal by 2 ° to 15 °, in particular by 3 ° to 10 ° and particularly preferably by 4 ° to 6 ° upwards.

Vorzugsweise kann es sich bei der Mahlkörpermühle um eine Rührwerkskugelmühle handeln.Preferably, the media mill may be an agitator ball mill.

Weitere bevorzugte und/oder vorteilhafte Ausgestaltungen der Erfindung und ihrer einzelnen Aspekte ergeben sich aus Kombinationen der abhängigen Ansprüche sowie aus den gesamten vorliegenden Anmeldungsunterlagen.Further preferred and / or advantageous embodiments of the invention and its individual aspects will become apparent from combinations of the dependent claims and from the entire present application documents.

Die Erfindung wird anhand von Ausführungsbeispielen nachfolgend unter Bezugnahme auf die Zeichnung lediglich exemplarisch näher erläutert, in der

Fig. 1
in einer schematischen Schnittansicht ein erstes Ausführungsbeispiel einer Mahlkörpermühle veranschaulicht, und
Fig. 2
in einer schematischen Schnittansicht eine Mahlkörpermühle nach dem Stand der Technik verdeutlicht.
The invention will now be described by way of example with reference to exemplary embodiments with reference to the drawing, in which
Fig. 1
in a schematic sectional view illustrates a first embodiment of a grinding mill, and
Fig. 2
in a schematic sectional view illustrates a grinding mill mill according to the prior art.

Anhand der nachfolgend beschriebenen und in den Zeichnungen dargestellten Ausführungs- und Anwendungsbeispiele wird die Erfindung lediglich exemplarisch näher erläutert, d.h. sie ist nicht auf diese Ausführungs- und Anwendungsbeispiele beschränkt. Verfahrens- und Vorrichtungsmerkmale ergeben sich jeweils analog auch aus Vorrichtungs- bzw. Verfahrensbeschreibungen.With reference to the embodiments and application examples described below and illustrated in the drawings, the invention will be explained only by way of example, i. it is not limited to these embodiments and examples of application. Process and device features result analogously also from device or process descriptions.

Einzelne Merkmale, die im Zusammenhang mit einem konkreten Ausführungsbeispiel angeben und/oder dargestellt sind, sind nicht auf dieses Ausführungsbeispiel oder die Kombination mit den übrigen Merkmalen dieses Ausführungsbeispiels beschränkt, sondern können im Rahmen des technisch Möglichen, mit jeglichen anderen Varianten, auch wenn sie in den vorliegenden Unterlagen nicht gesondert behandelt sind, kombiniert werden.Individual features that are indicated and / or illustrated in connection with a specific embodiment, are not limited to this embodiment or the combination with the other features of this embodiment, but may in the context of the technically possible, with any other variants, even if they are in are not treated separately.

Gleiche Bezugszeichen in den einzelnen Figuren und Abbildungen der Zeichnung bezeichnen gleiche oder ähnliche oder gleich oder ähnlich wirkende Komponenten. Anhand der Darstellungen in der Zeichnung werden auch solche Merkmale deutlich, die nicht mit Bezugszeichen versehen sind, unabhängig davon, ob solche Merkmale nachfolgend beschrieben sind oder nicht. Andererseits sind auch Merkmale, die in der vorliegenden Beschreibung enthalten, aber nicht in der Zeichnung sichtbar oder dargestellt sind, ohne weiteres für einen Fachmann verständlich.The same reference numerals in the individual figures and illustrations of the drawing designate the same or similar or the same or similar components. On the basis of the representations in the drawing, those features are also clear, which are not provided with reference numerals, regardless of whether such features are described below or not. On the other hand, features that are included in the present description but are not visible or illustrated in the drawing will be readily understood by those skilled in the art.

Das erste Ausführungsbeispiel einer Mahlkörpermühle 1 gemäß der Fig. 1 enthält gleichermaßen und auch in Übereinstimmung mit der Mahlkörpermühle 1 gemäß dem Stand der Technik in der Fig. 2 den von dem Gehäuse 2 umgebenen Mahlraum 3, in den durch den Produkteinlass 4 das zu zerkleinernde Mahlgut 5 zugeführt wird. In dem Mahlraum 3 sind die Mahlkörper 6 und das Rührwerk 7 mit dem Rotor 8 enthalten, dessen Rotation für die intensive Bewegung der Mahlkörper 6 sorgt, wodurch das zu zerkleinernde Mahlgut 5 zerkleinert wird. Am axialen Ende des Rotors 8 befindet sich die insbesondere mitdrehende Trenneinrichtung 9, die der Trennung zwischen einerseits Mahlkörpern 6 und noch weiter zu zerkleinerndem Mahlgut 5 sowie andererseits fertig gemahlenem Mahlgut 10 dient und dem Produktauslass 11 in dem Gehäuse 2 vorgeschaltet ist. Bei der Mahlkörpermühle 1 gemäß den Fig. 1 bzw. 2 handelt es sich um eine Rührwerkskugelmühle, die zwar eine besonders bevorzugte Anwendung der Erfindung ist, die jedoch nicht darauf beschränkt ist.The first embodiment of a grinding mill 1 according to the Fig. 1 Contains alike and also in accordance with the grinding mill 1 according to the prior art in the Fig. 2 the grinding chamber 3 surrounded by the housing 2, into which the grinding stock 5 to be comminuted is introduced through the product inlet 4. In the grinding chamber 3, the grinding media 6 and the agitator 7 are included with the rotor 8, the rotation of which ensures the intensive movement of the grinding media 6, whereby the comminuted material to be comminuted 5 is comminuted. At the axial end of the rotor 8 is the particular co-rotating separator 9, which serves the separation between on the one hand Mahlkörpern 6 and further to be comminuted material to be ground 5 and on the other hand finished ground regrind 10 and the product outlet 11 in the housing 2 is connected upstream. In the grinding mill 1 according to the Fig. 1 and 2 is an agitating ball mill, which although a particularly preferred application of the invention, but is not limited thereto.

Die Trenneinrichtung 9 wird bei einer solchen Rührwerkskugelmühle 1 beispielsweise durch den beschaufelten Rotorkörper 12 gebildet, der sich zusammen mit dem Rotor 8 dreht, und so gestaltet und betrieben, dass sie bzw. er Mahlkörper 6 nicht durchlassen soll, indem die Trenneinrichtung 9 insbesondere durch die Größe der Zwischenräume zwischen den Schaufeln 13 des beschaufelten Rotorkörpers 12 sowie die Drehbewegung des beschaufelten Rotorkörpers 12 die Mahlkörper 6 abweist und damit am Durchgang durch die Trenneinrichtung 9 aus dem Mahlraum 3 in den Produktauslass 11 hindert. Während bei Normalbetrieb der Mühle schon die Rotation der Trenneinrichtung 9 dafür sorgt, dass Mahlkörper 6 zuverlässig überwiegend daran gehindert werden, die Trenneinrichtung 9 zu durchqueren und die Mahlkörpermühle 1 bzw. deren Mahlraum 3 durch den Produktauslass 11 zu verlassen, kommt es besonders in Abbremsphasen des Rotors 8 dazu, dass vereinzelt Mahlkörper 6 infolge der geringeren Drehgeschwindigkeit des Rotors 8 und damit des beschaufelten Rotorkörpers 12 der Trenneinrichtung 9 durch letztere aus dem Mahlraum 3 in den Produktauslass 11 gelangen. Dies kann aber auch im Normalbetrieb erfolgen, wenn die Abmessungen von Mahlkörpern 6 verschleißbedingt abgenommen haben.The separator 9 is formed in such a stirred ball mill 1, for example, by the bladed rotor body 12 which rotates together with the rotor 8, and designed and operated so that they or he grinding media 6 is not allowed to pass by the separator 9 in particular by the Size of the spaces between the blades 13 of the bladed rotor body 12 and the rotational movement of the bladed rotor body 12 rejects the grinding media 6 and thus prevents the passage through the separator 9 from the grinding chamber 3 in the product outlet 11. While in normal operation of the mill already the rotation of the separator 9 ensures that grinding media 6 reliably prevented mainly from passing through the separator 9 and the Mahlkörpermühle 1 and the grinding chamber 3 to leave through the product outlet 11, it comes especially in Abbremsphasen of Rotor 8 to the fact that some grinding media 6 due to the lower rotational speed of the rotor 8 and thus the bladed rotor body 12 of the separator 9 through the latter from the grinding chamber 3 in the product outlet 11 pass. But this can also be done in normal operation, if the dimensions of grinding media 6 have decreased due to wear.

Solche aus dem Mahlraum 3 entkommene Mahlkörper müssen bei Mahlkörpermühlen 1 nach dem Stand der Technik einerseits gesondert aus dem fertig gemahlenen Mahlgut 10 entfernt werden, und zwar möglichst ohne einen kontinuierlichen Mahlgutstrom zu behindern. Um trotz dadurch auftretender Mahlkörperverluste die Füllung des Mahlraums 3 mit Mahlkörper auf einer vorgegebenen Menge zu halten, müssen andererseits auch immer wieder Mahlkörper nachgefüllt werden, wozu aufwendige Bestimmungen und Überwachungen der entsprechenden Mahlkörperfüllmenge erforderlich sind. Dies alles bereitet zusätzlichen Aufwand beim Betrieb einer Mahlkörpermühle.Such grinding media escaped from the grinding chamber 3 must, on the one hand, be removed separately from the finished ground grinding material 10 in the case of grinding body mills 1 according to the state of the art, if possible without obstructing a continuous flow of grinding material. In spite of the resulting Mahlkörperverluste the filling of the grinding chamber 3 with grinding media on a On the other hand, again and again grinding media must be refilled, for which complex determinations and monitoring of the corresponding grinding media filling quantity are required. This all adds additional effort in the operation of a grinding mill.

Hier schafft die vorliegende Erfindung Abhilfe, indem dem Produktauslass 11 ein Austragsstutzen 14 nachgeschaltet ist, der gegenüber der Horizontalen geneigt ist. Diese Neigung des Austragsstutzens 14 ist bei der Mahlkörpermühle 1 des ersten Ausführungsbeispiels gemäß der Fig. 1 nach oben. Vorzugsweise ist der Austragsstutzen 14 gegenüber der Horizontalen um 2° bis 15°, insbesondere um 3° bis 10° und besonders bevorzugt um 4° bis 6° nach oben geneigt.Here, the present invention provides a remedy by the product outlet 11, a discharge nozzle 14 is connected downstream, which is inclined relative to the horizontal. This inclination of the discharge nozzle 14 is in the grinding media mill 1 of the first embodiment according to the Fig. 1 up. Preferably, the discharge nozzle 14 is inclined relative to the horizontal by 2 ° to 15 °, in particular by 3 ° to 10 ° and particularly preferably by 4 ° to 6 ° upwards.

Bei der Mahlkörpermühle 1 des ersten Ausführungsbeispiels gemäß der Fig. 1 ist vorgesehen, dass der Austragsstutzen 14 gegenüber der Horizontalen nach oben oder aufwärts geneigt ist, und dass die Trenneinrichtung 9 den dem Produktauslass 11 vorgeschalteten Rotorkörper 12 enthält, der sich im Betrieb dreht und dadurch Mahlkörper 6 radial auswärts beaufschlagt, so dass in den Austragsstutzen 14 gelangte Mahlkörper 6 infolge der Neigung des Austragsstutzens 14 gegenüber der Horizontalen nach oben im Stillstand der Mahlkörpermühle 1 aus dem Austragsstutzen 14 durch den Produktauslass 11 in den Rotorkörper 12 geleitet werden und bei erneuter Betriebsaufnahme der Mahlkörpermühle 1 infolge der Drehung des Rotorkörpers 12 zurück in den Mahlraum 3 befördert werden.In the grinding mill 1 of the first embodiment according to the Fig. 1 It is provided that the discharge nozzle 14 is inclined upwards or upwards relative to the horizontal, and that the separating device 9 contains the rotor body 12 connected upstream of the product outlet 11, which rotates during operation and thereby acts on the grinding media 6 radially outwards, so that the discharge nozzle 14 arrived grinding body 6 due to the inclination of the Austragsstutzens 14 relative to the horizontal upwards at a standstill of the grinding mill 1 from the discharge port 14 through the product outlet 11 are passed into the rotor body 12 and upon renewed operation of the Mahlkörpermühle 1 due to the rotation of the rotor body 12 back into the grinding chamber 3 are transported.

In anderen Worten sieht ein Betriebsverfahren für eine Mahlkörpermühle 1 des ersten Ausführungsbeispiels gemäß der Fig. 1, vor, dass die durch die Trenneinrichtung 9 weiter durch den Produktauslass 11 gelangten Mahlkörper in den nach oben geneigten Austragsstutzen 14 gelangen, von wo sie im Stillstand der Mahlkörpermühle 1 aus dem Austragsstutzen 14 durch den Produktauslass 11 in einen Rotorkörper 12 der Trenneinrichtung 9 geleitet werden und bei erneuter Betriebsaufnahme der Mahlkörpermühle 1 infolge der Drehung des Rotorkörpers 12 zurück in den Mahlraum 3 befördert werden.In other words, an operating method for a grinding mill mill 1 of the first embodiment according to the Fig. 1 in that the grinding bodies which have passed further through the product outlet 11 through the separating device 9 pass into the upwardly inclined discharge nozzle 14, from where they are conducted from the discharge nozzle 14 through the product outlet 11 into a rotor body 12 of the separating device 9 when the grinding body mill 1 is at a standstill and upon renewed operation of the grinding mill 1 due to the rotation of the rotor body 12 are transported back into the grinding chamber 3.

Bei der Gestaltung des ersten Ausführungsbeispiels der der Mahlkörpermühle 1 mit dem aufwärts geneigten Austragsstutzen 14 ist von besonderem Vorteil, dass ohne weitere Einrichtungen und Maßnahmen alleine durch Ausnutzung der Schwerkraft innerhalb des aufwärts geneigten Austragsstutzens 14, jedenfalls dann, wenn die Transportströmung durch den Produktauslass 11 beim Abschalten der Mahlkörpermühle 1 geringer wird und schließlich wegfällt, die fälschlicherweise aus dem Mahlraum 3 durch den Produktauslass 11 in den Austragsstutzen 14 entkommenen Mahlkörper 6 automatisch durch den Produktauslass 11 in die Trenneinrichtung 9 zurückrutschen oder -rollen. Jedenfalls beim Wiederanfahren der Mahlkörpermühle 1 werden dann, jedenfalls solange noch keine ausreichend starke Strömung mit fertig gemahlenem Mahlgut 10 durch die Trenneinrichtung 9 und weiter durch den Produktauslass 11 besteht, die in der Trenneinrichtung 9 gesammelten Mahlkörper 6 durch die Drehbewegung der Trenneinrichtung 9 wieder in den Mahlraum 3 zurückbefördert oder -geschleudert. Bei dieser Ausführung treten die zurückgeführten Mahlkörper 6 also wieder am Austragsende, d.h. im Bereich des Produktauslasses 11, in den Mahlraum 3 ein und werden so zum Mahlprozess zurückgeführt und nehmen ab da wieder am Mahlprozess teil.In the design of the first embodiment of the grinding mill 1 with the upwardly inclined discharge nozzle 14 is of particular advantage that without further facilities and measures alone by utilizing gravity within the upwardly inclined discharge nozzle 14, in any case when the transport flow through the product outlet 11 becomes smaller when switching off the grinding media mill 1 and finally disappears, the erroneously escaped from the grinding chamber 3 through the product outlet 11 in the discharge nozzle 14 grinding media 6 automatically slip back through the product outlet 11 in the separator 9 or rolls. Anyway, when restarting the grinding mill 1 then, at least as long as there is no sufficiently strong flow with finished ground material 10 through the separator 9 and further through the Produktauslass 11, collected in the separator 9 grinding media 6 by the rotational movement of the separator 9 back into the Grinding chamber 3 conveyed back or hurled. In this embodiment, the recirculated grinding bodies 6 thus again enter the grinding chamber 3 at the discharge end, ie in the region of the product outlet 11, and are thus returned to the grinding process and from then on participate in the grinding process.

Auf weitere Einzelheiten von Mahlkörpermühlen und insbesondere Rührwerkskugelmühlen im Zusammenhang mit dem Mahlvorgang wird hier nicht weiter eingegangen, da davon ausgegangen wird, dass diese Einzelheiten für verschiedene Gestaltungen und Betriebsvarianten dem Fachmann bekannt sind, und da solche die Mahlung betreffenden Einzelheiten zur vorliegenden Erfindung nicht beitragen.Further details of grinding media mills and in particular agitator ball mills in connection with the grinding process will not be discussed here, since it is assumed that these details are known to the person skilled in the art for various designs and operating variants, and since such details concerning the grinding do not contribute to the present invention.

Die Erfindung ist anhand der Ausführungsbeispiele in der Beschreibung und in der Zeichnung lediglich exemplarisch dargestellt und nicht darauf beschränkt, sondern umfasst alle Variationen, Modifikationen, Substitutionen und Kombinationen, die der Fachmann den vorliegenden Unterlagen insbesondere im Rahmen der Ansprüche und der allgemeinen Darstellungen in der Einleitung dieser Beschreibung sowie der Beschreibung der Ausführungsbeispiele entnehmen und mit seinem fachmännischen Wissen sowie dem Stand der Technik kombinieren kann. Insbesondere sind alle einzelnen Merkmale und Ausgestaltungsmöglichkeiten der Erfindung kombinierbar.The invention is illustrated by way of example only and not by way of example in the description and the drawing, but includes all variations, modifications, substitutions and combinations that the skilled person the present documents in particular in the context of the claims and the general representations in the introduction This description and the description of the embodiments can be found and combined with his expert knowledge and the prior art. In particular, all individual features and design options of the invention can be combined.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Mahlkörpermühlemedia mill
22
Gehäusecasing
33
Mahlraumgrinding chamber
44
Produkteinlassproduct inlet
55
zu zerkleinerndes/mahlendes MahlgutGrindable material to be comminuted / ground
66
Mahlkörpergrinding media
77
Rührwerkagitator
88th
Rotorrotor
99
Trenneinrichtungseparator
1010
fertig gemahlenes MahlgutFinished ground regrind
1111
Produktauslassproduct outlet
1212
beschaufelter Rotorkörperbladed rotor body
1313
Schaufelnshovel
1414
Austragsstutzendischarge port

Claims (10)

Betriebsverfahren für eine Mahlkörpermühle (1) mit einem Gehäuse (2), das einen Mahlraum (3) umgibt, in dem Mahlkörper (6) angeordnet und im Normalbetrieb zum Mahlen eines zu mahlenden Mahlgutes (5) in Bewegung versetzt werden, und einen Produkteinlass (4) sowie einen Produktauslass (11) enthält, zwischen denen das zu mahlende Mahlgut (5) durch die sich bewegenden Mahlkörper (6) strömt, wobei durch eine dem Produktauslass (11) vorgeschaltete Trenneinrichtung (9) Mahlkörper (6) im Normalbetrieb der Mahlkörpermühle (1) am Austritt aus dem Mahlraum (3) in den Produktauslass (11) gehindert werden,
dadurch gekennzeichnet,
dass durch die Trenneinrichtung (9) weiter durch den Produktauslass (11) gelangte Mahlkörper in einen nach oben geneigten Austragsstutzen (14) gelangen, von wo sie im Stillstand der Mahlkörpermühle (1) aus dem Austragsstutzen (14) durch den Produktauslass (11) in einen Rotorkörper (12) der Trenneinrichtung (9) geleitet werden und bei erneuter Betriebsaufnahme der Mahlkörpermühle (1) infolge der Drehung des Rotorkörpers (12) zurück in den Mahlraum (3) befördert werden.Operating method for a grinding body mill (1) with a housing (2) surrounding a grinding chamber (3), arranged in the grinding body (6) and set in motion for grinding a material to be ground (5) in normal operation, and a product inlet ( 4) and a product outlet (11), between which the grinding stock (5) to be ground by the moving grinding media (6) flows, wherein by a product outlet (11) upstream separating device (9) grinding media (6) in normal operation of the grinding media mill (1) to be prevented from leaving the grinding chamber (3) in the product outlet (11),
characterized,
that by the separating device (9) further through the product outlet (11) arrived grinding media in an upwardly inclined discharge nozzle (14), from where it from the discharge nozzle (14) through the product outlet (11) in a rotor body (12) of the separating device (9) are passed and on renewed operation of the Mahlkörpermühle (1) due to the rotation of the rotor body (12) are transported back into the grinding chamber (3). Betriebsverfahren für eine Mahlkörpermühle (1) nach Anspruch 1,
dadurch gekennzeichnet,
dass der Austragsstutzen (14) gegenüber der Horizontalen um 2° bis 15° geneigt ist.Operating method for a grinding media mill (1) according to claim 1,
characterized,
that the discharge nozzle (14) is inclined by 2 ° to 15 ° relative to the horizontal. Betriebsverfahren für eine Mahlkörpermühle (1) nach Anspruch 2,
dadurch gekennzeichnet,
dass der Austragsstutzen (14) gegenüber der Horizontalen um 3° bis 10° geneigt ist.Operating method for a grinding media mill (1) according to claim 2,
characterized,
that the discharge nozzle (14) is inclined by 3 ° to 10 ° relative to the horizontal. Betriebsverfahren für eine Mahlkörpermühle (1) nach Anspruch 3,
dadurch gekennzeichnet,
dass der Austragsstutzen (14) gegenüber der Horizontalen um 4° bis 6° geneigt ist.Operating method for a grinding media mill (1) according to claim 3,
characterized,
that the discharge nozzle (14) is inclined by 4 ° to 6 ° relative to the horizontal. Betriebsverfahren für eine Mahlkörpermühle (1) nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass die Mahlkörpermühle (1) eine Rührwerkskugelmühle ist.Operating method for a grinding media mill (1) according to one of the preceding claims,
characterized,
that the media mill (1) is an agitator ball mill. Mahlkörpermühle (1) mit einem Gehäuse (2), das einen Mahlraum (3) umgibt, in dem Mahlkörper (6) angeordnet und im Normalbetrieb zum Mahlen eines zu mahlenden Mahlgutes (5) in Bewegung versetzt werden, und einen Produkteinlass (4) sowie einen Produktauslass (11) enthält, zwischen denen das zu mahlende Mahlgut (5) durch die sich bewegenden Mahlkörper (6) strömt, wobei dem Produktauslass (11) eine Trenneinrichtung (9) vorgeschaltet ist, die ausgelegt ist, um Mahlkörper (6) im Normalbetrieb der Mahlkörpermühle (1) am Austritt aus dem Mahlraum (3) in den Produktauslass (11) zu hindern,
dadurch gekennzeichnet,
dass dem Produktauslass (11) ein Austragsstutzen (14) nachgeschaltet ist, der gegenüber der Horizontalen nach oben geneigt ist, und
dass die Trenneinrichtung (9) einen dem Produktauslass (11) vorgeschalteten Rotorkörper (12) enthält, der sich im Betrieb dreht und dadurch Mahlkörper (6) radial auswärts beaufschlagt,
so dass in den Austragsstutzen (14) gelangte Mahlkörper (6) infolge der Neigung des Austragsstutzens (14) gegenüber der Horizontalen nach oben im Stillstand der Mahlkörpermühle (1) aus dem Austragsstutzen (14) durch den Produktauslass (11) in den Rotorkörper (12) geleitet werden und bei erneuter Betriebsaufnahme der Mahlkörpermühle (1) infolge der Drehung des Rotorkörpers (12) zurück in den Mahlraum (3) befördert werden.Grinding mill (1) with a housing (2) surrounding a grinding chamber (3), arranged in the grinding body (6) and set in motion for grinding a grinding material to be ground (5) in motion, and a product inlet (4) and a product outlet (11), between which the grinding stock (5) to be ground flows through the moving grinding bodies (6), wherein the product outlet (11) is preceded by a separating device (9) which is designed to hold grinding bodies (6) in the Normal operation of the grinding media mill (1) at the exit from the grinding chamber (3) into the product outlet (11) to prevent
characterized,
that the product outlet (11) is followed by a discharge nozzle (14) which is inclined upwards relative to the horizontal, and
in that the separating device (9) contains a rotor body (12) connected upstream of the product outlet (11), which rotates during operation and thereby acts on the grinding body (6) radially outward,
so that in the discharge nozzle (14) reached grinding body (6) due to the inclination of the Austragsstutzens (14) relative to the horizontal upward at a standstill of the Mahlkörpermühle (1) from the discharge nozzle (14) through the product outlet (11) in the rotor body (12 ) are passed and on renewed operation of the grinding mill (1) due to the rotation of the rotor body (12) back into the grinding chamber (3) are conveyed. Mahlkörpermühle (1) nach Anspruch 6,
dadurch gekennzeichnet,
dass der Austragsstutzen (14) gegenüber der Horizontalen um 2° bis 15° nach oben geneigt ist.Grinding element mill (1) according to claim 6,
characterized,
that the dispensing nozzle (14) relative to the horizontal of 2 ° to 15 ° inclined upward. Mahlkörpermühle (1) nach Anspruch 7,
dadurch gekennzeichnet,
dass der Austragsstutzen (14) gegenüber der Horizontalen um 3° bis 10° nach oben geneigt ist.Grinding element mill (1) according to claim 7,
characterized,
that the dispensing nozzle (14) relative to the horizontal of 3 ° to 10 ° inclined upward. Mahlkörpermühle (1) nach Anspruch 8,
dadurch gekennzeichnet,
dass der Austragsstutzen (14) gegenüber der Horizontalen um 4° bis 6° nach oben geneigt ist.Grinding element mill (1) according to claim 8,
characterized,
that the dispensing nozzle (14) relative to the horizontal by 4 ° to 6 ° tilted upward. Mahlkörpermühle (1) nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass die Mahlkörpermühle (1) eine Rührwerkskugelmühle ist.Grinding mill (1) according to one of the preceding claims,
characterized,
that the media mill (1) is an agitator ball mill.
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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013111762A1 (en) * 2013-07-08 2015-01-08 Netzsch-Feinmahltechnik Gmbh Agitator ball mill with axial channels
CN105833984A (en) * 2016-06-07 2016-08-10 浙江艾领创矿业科技有限公司 Ai sand mill free of screen classification
CN106345577A (en) * 2016-09-20 2017-01-25 派勒（天津）纳米技术有限公司 Smart online-discharging dry ball mill
DE102018123096B4 (en) * 2018-09-20 2022-01-27 Netzsch Feinmahltechnik Gmbh Agitator ball mill and method for operating an agitator ball mill
CN109967175A (en) * 2019-04-16 2019-07-05 东莞市琅菱机械有限公司 A kind of grinding block, grinding rotor and the grinder including the grinding rotor
CN109967172A (en) * 2019-04-16 2019-07-05 东莞市琅菱机械有限公司 A kind of grinding rotor and the grinder including the grinding rotor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2332701A (en) 1940-06-12 1943-10-26 Charles W Dowsett System and method of grinding
DE2446341A1 (en) 1973-09-28 1975-04-10 Netzsch Maschinenfabrik SEPARATING DEVICE FOR SEPARATING GRINDING BODIES AND GROUND SUSPENSION IN AN AGITATING MILL
DE2744802A1 (en) 1976-10-06 1978-04-13 Aluminum Co Of America PRODUCTION OF METAL FLAKES
DE3131370A1 (en) 1980-10-02 1982-09-02 Veb Kombinat Nagema, Ddr 8045 Dresden AGITATOR BALL MILL
EP1468739A1 (en) * 2003-04-15 2004-10-20 Willy A. Bachofen AG Agitator ball mill
DE102007043670A1 (en) * 2007-09-13 2009-04-02 Netzsch-Feinmahltechnik Gmbh stirred ball mill

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60155937U (en) * 1984-03-29 1985-10-17 株式会社　富士電機総合研究所 Electromagnetic grinding and mixing equipment
US4936513A (en) * 1987-12-30 1990-06-26 Otisca Industries, Ltd. Ball mills
BE1007890A3 (en) * 1993-12-29 1995-11-14 Slegten Sa Screen elements for rotary grinder and grinder team of such items.
DE4432200C1 (en) * 1994-09-09 1996-02-29 Evv Vermoegensverwaltungs Gmbh Agitator mill
JP3748440B2 (en) * 2003-04-01 2006-02-22 株式会社アーステクニカ Ball mill
DE102008058585A1 (en) * 2008-11-22 2010-05-27 Netzsch-Feinmahltechnik Gmbh stirred ball mill
CH700446A1 (en) * 2009-02-24 2010-08-31 Bachofen Willy A Ag Stirred ball.
DE102010049827A1 (en) * 2010-10-27 2012-05-03 Netzsch-Feinmahltechnik Gmbh stirred ball mill

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2332701A (en) 1940-06-12 1943-10-26 Charles W Dowsett System and method of grinding
DE2446341A1 (en) 1973-09-28 1975-04-10 Netzsch Maschinenfabrik SEPARATING DEVICE FOR SEPARATING GRINDING BODIES AND GROUND SUSPENSION IN AN AGITATING MILL
DE2744802A1 (en) 1976-10-06 1978-04-13 Aluminum Co Of America PRODUCTION OF METAL FLAKES
DE3131370A1 (en) 1980-10-02 1982-09-02 Veb Kombinat Nagema, Ddr 8045 Dresden AGITATOR BALL MILL
EP1468739A1 (en) * 2003-04-15 2004-10-20 Willy A. Bachofen AG Agitator ball mill
DE102007043670A1 (en) * 2007-09-13 2009-04-02 Netzsch-Feinmahltechnik Gmbh stirred ball mill

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US20150174583A1 (en) 2015-06-25
CN104815726B (en) 2017-05-31
CN104815726A (en) 2015-08-05
EP2886198B1 (en) 2017-07-05
JP2015120151A (en) 2015-07-02
DE102013021756A1 (en) 2015-06-25
ES2642006T3 (en) 2017-11-14
BR102014032287B1 (en) 2020-12-08
JP5963179B2 (en) 2016-08-03
US10279353B2 (en) 2019-05-07
BR102014032287A2 (en) 2016-05-24

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