EP2643090A2 - Introduction et extraction hydrauliques de boulets de broyage pour des broyeurs à boulets à agitateur - Google Patents

Introduction et extraction hydrauliques de boulets de broyage pour des broyeurs à boulets à agitateur

Info

Publication number
EP2643090A2
EP2643090A2 EP11822798.2A EP11822798A EP2643090A2 EP 2643090 A2 EP2643090 A2 EP 2643090A2 EP 11822798 A EP11822798 A EP 11822798A EP 2643090 A2 EP2643090 A2 EP 2643090A2
Authority
EP
European Patent Office
Prior art keywords
grinding
bodies
container
ball mill
auxiliary
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Withdrawn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
EP11822798.2A
Other languages
German (de)
English (en)
Inventor
Matthias Schaefer
Michael Lechner
Uwe Neumann
Dimitrios Makrakis
Udo Enderle
Gerhard Kolb
Stefan Mende
Klaus Ott
Horst Pausch
Michael Rappl
Peter Schertenleib
Michael Schmidt
Peter Stich
Lars Weiland
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 EP2643090A2 publication Critical patent/EP2643090A2/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • B02C17/18—Details
    • B02C17/20—Disintegrating members
    • B02C17/205—Adding disintegrating members to the tumbling mill
    • 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
    • B02C17/20—Disintegrating members
    • 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
    • B02C17/186—Adding fluid, other than for crushing by fluid energy

Definitions

  • the present invention relates to a method for hydraulic Mahlkugelzu- and removal in agitator ball mills.
  • the German patent DE 37 27 863 C1 discloses a stirred mill with a feed tube for the grinding media.
  • the grinding container contains a rotatably drivable agitator and around this one at least partially fillable with grinding media and grinding material grinding chamber.
  • a feed tube through which grinding media is supplied to a central region of the grinding container from the outside while the agitator is running, opens into a cavity in the agitator.
  • a substantially radial outlet opening in the agitator is connected to the grinding chamber. This allows a rapid supply of grinding media.
  • a housing which communicates with a grinding container, contains a delivery chamber which can be connected to a grinding chamber in the grinding container. Through an inlet opening in the housing Mahlospian be supplied to the delivery chamber.
  • a conveying member can be moved in the conveying space in order to convey grinding aid bodies from the inlet opening through an elastic closure in the direction of the grinding space.
  • the elastic termination has at least one slot, which is elongated transversely to the conveying direction of the conveying member and normally closed, but can pass under a pressure exerted by the winningg song plurality Mahltos emotions side by side.
  • the German patent DE 44 32 200 C1 discloses an agitator mill, which is provided with a separate Mahlgut Mahlostage-separating device.
  • the separating device has a rotatably drivable rotor for separating the Mahltosterrorism from the treated millbase.
  • Mahltosterrorism be transported back to the agitator mill with untreated regrind.
  • the separation Direction forms together with the agitator mill and the connecting lines a closed system.
  • the agitator mill disclosed in the German patent application DE 103 38 592 A1 has a grinding container and a rotary drivable agitator arranged therein.
  • the grinding chamber opens a Mahlgutzu entry and from the grinding chamber a Mahlgutab entry.
  • the grinding chamber is at least partially filled with Mahlangeskörpem.
  • Mahlgutab entry is also Mahlos stressesab- suction and trennein direction. It has a separator for Mahltos emotions, which has a Abscheide Geneva, in the upper region of a submerged in the Mahlgut- Mahlosoasagemisch suction line opens. In the line for Mahltos emotionsschreib classroom classroom a lock is integrated.
  • the invention has the object to provide a method by which the Mahltostage can be filled time-saving and without high mechanical and human effort in a stirred ball mill and / or removed from a stirred ball mill.
  • the present invention discloses a method for introducing grinding auxiliary bodies into a stirred ball mill and for removing grinding auxiliary bodies from a stirred ball mill.
  • the auxiliary grinding bodies are transported into and out of the agitator ball mill via a closed circuit by means of a hydraulic conveying medium.
  • the circuit is considered closed even when a closed or open reservoir is used to carry out the process. It must, however Ensure that the pumped liquid can always be circulated without the entry of air and / or other gases.
  • the auxiliary grinding bodies are conveyed into the grinding container via the grinding stock inlet and also out of the grinding stock inlet. When filling the Mahlosêt be kept in a reservoir, together with the hydraulic fluid.
  • a pump draws the hydraulic fluid through a first line and a second line through a grinding container of the stirred ball mill.
  • the Mahltosterrorism be sucked together with the hydraulic fluid in the grinding container or pressed into the grinding container.
  • the flow for the Mahlosêt is realized either by suction or pressure.
  • the conveying medium is pumped out of the grinding container at a somewhat elevated point and / or by a separating device, the grinding aid bodies remaining in the grinding container.
  • the hydraulic fluid For emptying the hydraulic fluid is pumped with the pump from the reservoir via the second line in the grinding container.
  • the Mahlostage be pumped or pressed together with the hydraulic fluid via the first line from the grinding container into the reservoir. After reaching the reservoir, the Mahlos redesign remain in this. By contrast, the hydraulic fluid is circulated until all grinding aids have been removed from the grinding container.
  • the stirring shaft When removing the Mahlostage from the agitator ball mill, the stirring shaft is temporarily set in rotary motion. Due to the rotational movement of the stirring shaft, an additional flow is created in the grinding container, which stirs up the auxiliary grinding bodies and causes them to float in the conveying medium. As a result, the removal of Mahlostage is significantly improved by the flowing fluid.
  • the hydraulic fluid is always removed from a calmed zone of the reservoir.
  • the removal from the calmed zone is important because no Mahlos stresses may get into the pump and no air and / or gases in the grinding container.
  • the calm zone is characterized by the fact that there are no auxiliary grinding bodies in it. Furthermore, there is no or only a slight flow in the calm zone. In most cases, the calm zone will be an area separated by a wall from the reservoir. The Transfer medium then passes either through openings or openings in the wall in the calmed zone.
  • the hydraulic fluid is pumped into the grinding container in the middle of a milled vessel floor during the filling and / or emptying process.
  • the hydraulic fluid is pumped in during the filling process and / or during the emptying over the milled vessel bottom below the agitator shaft.
  • the grinding container of the stirred ball mill is filled to at least 90%, preferably to 95%, with hydraulic conveying medium and / or auxiliary grinding bodies.
  • the conveying medium water or another suitable liquid medium can be used.
  • FIG. 1 shows the filling of auxiliary grinding bodies in a stirred ball mill with a special storage container.
  • Fig. 2 shows the removal of MahlosAvemn from a stirred ball mill with a special reservoir.
  • Fig. 3 shows the filling of Mahlosêtn in a stirred ball mill with a simple reservoir.
  • Fig. 4 shows the removal of Mahlöskörpem from a stirred ball mill with a simple reservoir.
  • Fig. 5 shows the removal of grinding auxiliary bodies from a stirred ball mill, wherein the hydraulic fluid is pumped below the agitator shaft.
  • Fig. 1 shows the filling of Mahltoskörpem 12 in a stirred ball mill 10 with a special reservoir 14.
  • the reservoir 14 has, in this Embodiment a downwardly tapered shape and is provided with a first obturator 34 and a second obturator 36.
  • the Mahltos stresses 12 are held in the reservoir 14 together with the hydraulic fluid 16.
  • a first obturator 34 is opened.
  • Ansch manend the pump 20 promotes the mixture via a first line 22 to Mahlguteinlass 30 of Mahl mattersers 11.
  • Fig. 2 shows the removal of grinding auxiliary bodies 12 from a stirred ball mill 10 with a special reservoir 14.
  • the removal point 26 is to be positioned by an operator and / or by a frame below the conveyor mirror. If the removal point 26 is correctly positioned, the second obturator 36 is opened and the fluid 16 passes through the connecting line 38 to the pump 20.
  • the pump 20 conveys the fluid 16 through the second line 24 into the grinding container 11. The pumping takes place via the point in Grist container bottom 32 was taken over the conveying medium 16 in Figure 1.
  • FIG. 3 shows the filling of auxiliary grinding bodies 12 into a stirred ball mill 10 with a simple storage container 1.
  • this has no shut-off, no special shape and no fixed mounted outlets. Rather, this embodiment is intended to illustrate that the method for filling and emptying can also be carried out with commercially available containers.
  • the holding of the grinding media 12 and the hydraulic fluid 16 takes place in the reservoir 14.
  • the pump 20 generates a flow of material through which the fluid 16 passes into a removal device 40. In the removal device 40, a diversion of the material flow into the first conduit 22 takes place. This creates a negative pressure with which the grinding aid bodies 12 are sucked out of the reservoir 14.
  • the removal point 26 is always below the pumped medium level 28 of the reservoir 14, so that neither air nor other gases enter the material flow.
  • the mixture passes through the Mahiguteinlass 30 in the grinding container 11.
  • Mahlhüfsharm 12 remain in the grinding container, the medium 16 is sucked through an opening or by a separator (not shown) in the grinding container bottom 32 and circulated.
  • Fig. 4 shows the removal of grinding auxiliary bodies 12 from a stirred ball mill 10 with a simple reservoir 14.
  • the hydraulic fluid 16 is pumped out of a calmed zone 18 of the reservoir 14 with the pump 20 and via the second line 24 into the grinding container 11th flushed.
  • the calm zone 18 is characterized by the fact that only a small flow and no auxiliary grinding bodies 12 are present in it.
  • the removal point 26 for the conveying medium 16 is always arranged below the conveying medium level 28.
  • FIG. 5 shows the removal of auxiliary grinding bodies 12 from a stirred ball mill 10, wherein the hydraulic conveying medium 16 passes below the stirring shaft 13 into the grinding container 11.
  • the embodiment shown in Figure 5 works in principle equal to that described in Figure 2. The only and most important difference lies in the feed of the pumped medium 16 below the Rhakweile 13. By this type of feed arises in the grinding container 11 a stronger turbulence and a turbulent flow than in the embodiment described in Figure 2. In order to be able to remove all mahiaciouss stresses 12 completely from the grinding container 11, it is also necessary here to put the stirring shaft 13 temporarily in rotation.
  • the pumped medium 16 is pumped together with the Mahlwhis crushern 12 via a nozzle near the Mahl actuallyerbasis below the agitator shaft 13.
  • the conveying medium 16 exits via an opening, wherein this opening is preceded by a separating device 33.
  • the Mahlos stresses 12 remain in the grinding container 11th

Landscapes

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

Abstract

L'invention concerne un procédé d'introduction de corps auxiliaires de broyage dans un broyeur à boulets à agitateur et d'extraction de corps auxiliaires de broyage contenus dans un broyeur à boulets à agitateur. Selon l'invention, les corps auxiliaires de broyage sont transportés dans le broyeur à boulets à agitateur et extraits de celui-ci dans un circuit fermé au moyen d'un fluide de transport hydraulique.
EP11822798.2A 2010-11-26 2011-11-22 Introduction et extraction hydrauliques de boulets de broyage pour des broyeurs à boulets à agitateur Withdrawn EP2643090A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010052656A DE102010052656A1 (de) 2010-11-26 2010-11-26 Hydraulische Mahlkugel Zu- und Abfuhr für Rührwerkskugelmühlen
PCT/DE2011/002024 WO2012069042A2 (fr) 2010-11-26 2011-11-22 Introduction et extraction hydrauliques de boulets de broyage pour des broyeurs à boulets à agitateur

Publications (1)

Publication Number Publication Date
EP2643090A2 true EP2643090A2 (fr) 2013-10-02

Family

ID=45773987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11822798.2A Withdrawn EP2643090A2 (fr) 2010-11-26 2011-11-22 Introduction et extraction hydrauliques de boulets de broyage pour des broyeurs à boulets à agitateur

Country Status (7)

Country Link
US (1) US9216418B2 (fr)
EP (1) EP2643090A2 (fr)
CN (1) CN103249489B (fr)
BR (1) BR112013012618B1 (fr)
DE (1) DE102010052656A1 (fr)
RU (1) RU2587059C2 (fr)
WO (1) WO2012069042A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150343453A1 (en) * 2014-05-28 2015-12-03 NanoCentrix L.L.C. Fluid energy media mill system and method
US20190168233A1 (en) * 2017-12-01 2019-06-06 Metso Minerals Industries, Inc. Vertical grinding mill, grinding media handling system, grinding media discharge device, and method for handling grinding media
BR102018009587A2 (pt) 2018-05-11 2019-11-26 Metso Brasil Industria E Comércio Ltda. Sistema de alimentação de corpos de cominuição em moinhos verticais
CN113893918B (zh) * 2021-09-29 2022-10-28 浙江联康中药科技有限公司 一种中药循环粉碎装置
CN116921012B (zh) * 2023-09-18 2023-12-01 北京天地融创科技股份有限公司 卧式水煤浆细磨机及其控制方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0804161A1 (fr) * 1994-05-25 1997-11-05 NanoSystems L.L.C. Procede continu de broyage de substances pharmaceutiques

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7038335U (de) * 1970-10-16 1972-11-09 Fa Huber M Ruehrwerksmuehle
DE3038794C2 (de) * 1980-10-14 1994-02-17 Buehler Ag Geb Rührwerksmühle
DE3727863C1 (de) 1987-08-20 1989-03-02 Netzsch Erich Holding Ruehrwerksmuehle mit Zufuehrrohr fuer Mahlkoerper
DE3838981A1 (de) * 1988-11-18 1990-05-23 Eirich Walter Ruehrwerkskugelmuehle
DE3902689C1 (en) 1989-01-30 1990-02-22 Erich Netzsch Gmbh & Co Holding Kg, 8672 Selb, De Device for introducing milling aid bodies into mills, in particular agitator mills
DE4432200C1 (de) 1994-09-09 1996-02-29 Evv Vermoegensverwaltungs Gmbh Rührwerksmühle
DE4432198A1 (de) * 1994-09-09 1996-03-14 Evv Vermoegensverwaltungs Gmbh Rührwerksmühle
DE19832304A1 (de) * 1998-07-17 2000-01-20 Reiner Weichert Verfahren und Vorrichtung zur Ultrafein-Mahlung von festen Materialien
DE19839210B4 (de) * 1998-08-28 2007-09-06 BüHLER GMBH Rührwerksmühle
DE10253791A1 (de) * 2001-12-24 2003-07-03 Gustav Eirich Gmbh & Co Kg Rührwerksmühle
EP1510256A1 (fr) * 2003-08-22 2005-03-02 Maschinenfabrik Gustav Erich GmbH & Co. KG Broyeur à agitateur avec un tuyau d'immersion pour l'aspiration et la séparation de matière à broyer et des corps broyants
DE10338592A1 (de) 2003-08-22 2005-03-17 Maschinenfabrik Gustav Eirich Gmbh & Co. Kg Rührwerksmühle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0804161A1 (fr) * 1994-05-25 1997-11-05 NanoSystems L.L.C. Procede continu de broyage de substances pharmaceutiques

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2012069042A2 *

Also Published As

Publication number Publication date
RU2587059C2 (ru) 2016-06-10
BR112013012618B1 (pt) 2020-07-28
US9216418B2 (en) 2015-12-22
CN103249489B (zh) 2014-10-15
WO2012069042A2 (fr) 2012-05-31
WO2012069042A3 (fr) 2012-12-27
RU2013128892A (ru) 2015-01-10
DE102010052656A1 (de) 2012-05-31
BR112013012618A2 (pt) 2016-09-06
CN103249489A (zh) 2013-08-14
US20130256434A1 (en) 2013-10-03

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