EP2886198A1 - Procédé de fonctionnement pour un broyeur à billes et broyeur à billes associé - Google Patents

Procédé de fonctionnement pour un broyeur à billes et broyeur à billes associé 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
Authority
EP
European Patent Office
Prior art keywords
grinding
mill
product outlet
discharge nozzle
media
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14004298.7A
Other languages
German (de)
English (en)
Other versions
EP2886198B1 (fr
Inventor
Lars-Peter Weiland
Roland Nied
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 Trockenmahltechnik GmbH
Original Assignee
Netzsch Trockenmahltechnik 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.)
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Publication date
Application filed by Netzsch Trockenmahltechnik GmbH filed Critical Netzsch Trockenmahltechnik GmbH
Publication of EP2886198A1 publication Critical patent/EP2886198A1/fr
Application granted granted Critical
Publication of EP2886198B1 publication Critical patent/EP2886198B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • 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)
EP14004298.7A 2013-12-20 2014-12-19 Procédé de fonctionnement pour un broyeur à billes et broyeur à billes associé Active EP2886198B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013021756.3A DE102013021756A1 (de) 2013-12-20 2013-12-20 Mahlkörpermühle und Betriebsverfahren dafür

Publications (2)

Publication Number Publication Date
EP2886198A1 true EP2886198A1 (fr) 2015-06-24
EP2886198B1 EP2886198B1 (fr) 2017-07-05

Family

ID=52349913

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14004298.7A Active EP2886198B1 (fr) 2013-12-20 2014-12-19 Procédé de fonctionnement pour un broyeur à billes et broyeur à billes associé

Country Status (7)

Country Link
US (1) US10279353B2 (fr)
EP (1) EP2886198B1 (fr)
JP (1) JP5963179B2 (fr)
CN (1) CN104815726B (fr)
BR (1) BR102014032287B1 (fr)
DE (1) DE102013021756A1 (fr)
ES (1) ES2642006T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013111762A1 (de) * 2013-07-08 2015-01-08 Netzsch-Feinmahltechnik Gmbh Rührwerkskugelmühle mit Axialkanälen
CN105833984A (zh) * 2016-06-07 2016-08-10 浙江艾领创矿业科技有限公司 一种无筛网分级艾砂磨机
CN106345577A (zh) * 2016-09-20 2017-01-25 派勒（天津）纳米技术有限公司 一种智能型在线出料干式球磨机
DE102018123096B4 (de) * 2018-09-20 2022-01-27 Netzsch Feinmahltechnik Gmbh Rührwerkskugelmühle und Verfahren zum Betreiben einer Rührwerkskugelmühle
CN109967172A (zh) * 2019-04-16 2019-07-05 东莞市琅菱机械有限公司 一种研磨转子及包括该研磨转子的研磨机
CN109967175A (zh) * 2019-04-16 2019-07-05 东莞市琅菱机械有限公司 一种研磨块、研磨转子及包括该研磨转子的研磨机
CN114768948A (zh) * 2022-04-20 2022-07-22 重庆华银机电开发有限公司 一种砂磨机防堵研磨系统

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 (de) 1973-09-28 1975-04-10 Netzsch Maschinenfabrik Trennvorrichtung zum trennen von mahlkoerpern und gemahlener suspension in einer ruehrwerksmuehle
DE2744802A1 (de) 1976-10-06 1978-04-13 Aluminum Co Of America Herstellung von metallflocken
DE3131370A1 (de) 1980-10-02 1982-09-02 Veb Kombinat Nagema, Ddr 8045 Dresden Ruehrwerkskugelmuehle
EP1468739A1 (fr) * 2003-04-15 2004-10-20 Willy A. Bachofen AG Broyeur agitateur à billes
DE102007043670A1 (de) * 2007-09-13 2009-04-02 Netzsch-Feinmahltechnik Gmbh Rührwerkskugelmühle

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60155937U (ja) * 1984-03-29 1985-10-17 株式会社　富士電機総合研究所 電磁式粉砕混合処理装置
US4936513A (en) * 1987-12-30 1990-06-26 Otisca Industries, Ltd. Ball mills
BE1007890A3 (fr) * 1993-12-29 1995-11-14 Slegten Sa Elements de blindage pour broyeur rotatif et broyeur equipe de tels elements.
DE4432200C1 (de) * 1994-09-09 1996-02-29 Evv Vermoegensverwaltungs Gmbh Rührwerksmühle
JP3748440B2 (ja) * 2003-04-01 2006-02-22 株式会社アーステクニカ ボールミル
DE102008058585A1 (de) * 2008-11-22 2010-05-27 Netzsch-Feinmahltechnik Gmbh Rührwerkskugelmühle
CH700446A1 (de) * 2009-02-24 2010-08-31 Bachofen Willy A Ag Rührwerkskugelmühle.
DE102010049827A1 (de) * 2010-10-27 2012-05-03 Netzsch-Feinmahltechnik Gmbh Rührwerkskugelmühle

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 (de) 1973-09-28 1975-04-10 Netzsch Maschinenfabrik Trennvorrichtung zum trennen von mahlkoerpern und gemahlener suspension in einer ruehrwerksmuehle
DE2744802A1 (de) 1976-10-06 1978-04-13 Aluminum Co Of America Herstellung von metallflocken
DE3131370A1 (de) 1980-10-02 1982-09-02 Veb Kombinat Nagema, Ddr 8045 Dresden Ruehrwerkskugelmuehle
EP1468739A1 (fr) * 2003-04-15 2004-10-20 Willy A. Bachofen AG Broyeur agitateur à billes
DE102007043670A1 (de) * 2007-09-13 2009-04-02 Netzsch-Feinmahltechnik Gmbh Rührwerkskugelmühle

Also Published As

Publication number Publication date
ES2642006T3 (es) 2017-11-14
CN104815726A (zh) 2015-08-05
BR102014032287A2 (pt) 2016-05-24
EP2886198B1 (fr) 2017-07-05
BR102014032287B1 (pt) 2020-12-08
US20150174583A1 (en) 2015-06-25
CN104815726B (zh) 2017-05-31
DE102013021756A1 (de) 2015-06-25
JP5963179B2 (ja) 2016-08-03
JP2015120151A (ja) 2015-07-02
US10279353B2 (en) 2019-05-07

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