EP1511573B1 - Broyeur agitateur - Google Patents

Broyeur agitateur Download PDF

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Publication number
EP1511573B1
EP1511573B1 EP03747391A EP03747391A EP1511573B1 EP 1511573 B1 EP1511573 B1 EP 1511573B1 EP 03747391 A EP03747391 A EP 03747391A EP 03747391 A EP03747391 A EP 03747391A EP 1511573 B1 EP1511573 B1 EP 1511573B1
Authority
EP
European Patent Office
Prior art keywords
segments
hub
disk
mill according
agitating mill
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03747391A
Other languages
German (de)
English (en)
Other versions
EP1511573A1 (fr
Inventor
Udo Enderle
Jochen Suk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Glencore Queensland Ltd
Netzsch Feinmahltechnik GmbH
Original Assignee
Xstrata Queensland Ltd
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 Xstrata Queensland Ltd, Netzsch Feinmahltechnik GmbH filed Critical Xstrata Queensland Ltd
Publication of EP1511573A1 publication Critical patent/EP1511573A1/fr
Application granted granted Critical
Publication of EP1511573B1 publication Critical patent/EP1511573B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
    • B02C17/163—Stirring means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/051—Stirrers characterised by their elements, materials or mechanical properties
    • B01F27/052—Stirrers with replaceable wearing elements; Wearing elements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/071—Fixing of the stirrer to the shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/115—Stirrers characterised by the configuration of the stirrers comprising discs or disc-like elements essentially perpendicular to the stirrer shaft axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/83—Mixing plants specially adapted for mixing in combination with disintegrating operations
    • B01F33/8305—Devices with one shaft, provided with mixing and milling tools, e.g. using balls or rollers as working tools; Devices with two or more tools rotating about the same axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/836—Mixing plants; Combinations of mixers combining mixing with other treatments
    • B01F33/8361—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating
    • B01F33/83613—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating by grinding or milling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/115—Stirrers characterised by the configuration of the stirrers comprising discs or disc-like elements essentially perpendicular to the stirrer shaft axis
    • B01F27/1151—Stirrers characterised by the configuration of the stirrers comprising discs or disc-like elements essentially perpendicular to the stirrer shaft axis with holes on the surface

Definitions

  • the invention relates to an agitator mill with a grinding container and a stirring shaft rotating therein on which a plurality of disk-shaped grinding elements are arranged in series.
  • An agitating mill is known in which a stirring shaft is arranged in the grinding chamber.
  • the agitator shaft carries at an axial distance from each other a plurality of disc-shaped grinding elements.
  • Each of the grinding elements is bounded radially by an edge bead. Between this edge bead and a hub which is connected by a pin connection with the agitator shaft, the grinding element 4 has circular openings.
  • the grinding element itself is attached via an internal thread in the stirring shaft region with an external thread on the hub. So that the grinding element can be firmly connected to the hub, the hub is provided only over a portion of its surface facing the grinding chamber with a thread with reduced hub outer diameter.
  • the grinding element If the grinding element is screwed onto this thread of the hub, the grinding element abuts against the hub part of larger diameter and is clamped therewith. If one or more grinding elements except on the last wear on the stirring shaft, which inevitably occurs after a certain number of operating hours, the previously arranged grinding elements must always be removed from the stirring shaft for replacement.
  • An agitating mill with a screw conveyor is known as a grinding element.
  • the screw conveyor has a shaft to which a screw surface is welded. Spiral segments are screwed to the screw surface.
  • a disk-shaped grinding element for a stirred mill is known.
  • the grinding element is a one-piece disc.
  • the disc has on both sides orthogonal standing on the disc surface webs.
  • the object of the invention is to make the grinding elements so that an exchange of individual grinding elements is made possible.
  • the solution according to the invention consists of assembling a disc-shaped grinding element of several disc segments.
  • the grinding elements can also be provided with a one- or multi-part hub.
  • the advantage of using a detachable from the disc segments hub is that the hub can be made of a different material and thus can be interpreted for other load criteria.
  • the disk segments are connected by screw with the one or more parts hub, the screw in the radial direction of the passages in the segments to reach into the hub.
  • the parting line of the hub to the parting line of the disc segments is offset by 15-90 °, the grinding element can be made of only 4 hub and disc segments finished.
  • this is advantageous since a hub can be quickly separated from the disk segments.
  • the grinding disc on passages. Through these passages the grinding effect is increased.
  • the disk segments can be interconnected with screws, which are directed from one passage to the other.
  • the stability of the disc consisting of several disc segments can or must be increased depending on the size of the diameter of the grinding disc.
  • the joints of the disk segments are designed differently, the variants ranging from a mere blunt approach over projections and recesses to groove-spring designs.
  • Fig. 1 illustrates a refining element 12 consisting of five disc segments 14, 16, 18, 20, 22.
  • the disc segments have a disc core 24 surrounded by a plastic or rubber layer 26.
  • the disk segments are on their legs 28, 30, as well as in Fig. 2 shown provided with projections 32 and recesses 34, which provide for the axial support of the disc transitions.
  • the disc segments 14, 16, 18, 20, 22 have slot-shaped apertures 36.
  • the five disc segments 14 to 22 and the centrally arranged one-piece hub are through Screws 40 connected together.
  • the positive connection between the drive shaft and the hub 38 is formed by the insertion of a spring in the groove 42nd
  • the disk segments 14 to 22 can be removed or replaced individually, but the hub 38 itself is in one piece and includes the stirring shaft.
  • the hub or hubs 38 can only be removed from the stirrer shaft by the removal of one or more hubs 38 or any spacers between the hubs.
  • the Fig. 5 illustrates a refining element 12 which is composed of both two disc segments 46, 48, as well as two hub elements 50, 52.
  • plastic polyamide, polyurethane
  • metal reinforcements 54, 56, 58, 60 are introduced. These metal reinforcements 54, 56, 58, 60 are connected by screws to the hub.
  • Each disk segment 46, 48 is offset, for example by 90 °, from the parting lines 64, 64 'of the hub elements 50, 52.
  • the Fig. 6 illustrates the design of the legs of the disk segments 46, 48 after Fig. 5 .
  • the illustrated dovetail connection which enter the two disc segments 46, 48 in the region of their legs, increases their stabilization in addition to the fastening by the screws.
  • FIGS. 7 and 8 Another way to connect the disk segments 65, 66, 68,70 to the hub 38, show FIGS. 7 and 8 , Here, the disk segments are fastened in the inner radius region in the direction of their axis of rotation A on a web projecting outwardly from the hub 38.
  • Each of the four disk segments 65, 66, 68, 70 has two screw connections in this overlapping region of web 72 and disk segment 65, 66, 68, 70.
  • the screws 74 used for this purpose penetrate the core 76 of the disk segments 65, 66, 68, 70 and are bolted to the thread in the web 72.
  • a direct connection of two or more disk segments is provided.
  • the disk segments are bolted directly to and with each other.
  • screws extend from the apertures to the adjacent disc segment.
  • pin connections in the area of the shaft or clamping connections between the projections on the disk segments can also provide the firm connection.
  • no central hub is provided in the center of the disc elements.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Adjustment And Processing Of Grains (AREA)
  • Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Milling Processes (AREA)
  • Crushing And Pulverization Processes (AREA)

Claims (15)

  1. Broyeur agitateur avec une cuve de broyage et un arbre d'agitation tournant dans celle-ci, sur lequel plusieurs éléments broyeurs en forme de disque (12) formés de disques annulaires sont disposées en rangée, caractérisé en ce que chaque disque annulaire se compose de plusieurs segments de disque (14, 16, 18, 20, 22, 46, 48, 65, 66, 68, 70), ce qui permet de remplacer séparément des éléments broyeurs (12) sans démonter les autres éléments broyeurs de l'arbre d'agitation.
  2. Broyeur agitateur selon la revendication 1, caractérisé en ce que les segments de disque (14, 16, 18, 20, 22, 46, 48, 65, 66, 68, 70) sont assemblés à un moyeu (38).
  3. Broyeur agitateur selon la revendication 2, caractérisé en ce que le moyeu (38) est en plusieurs parties et est relié aux segments de disque (14, 16, 18, 20, 22, 46, 48, 65, 66, 68, 70) par des assemblages pouvant être défaits.
  4. Broyeur agitateur selon la revendication 3, caractérisé en ce que le joint de séparation (62, 62') entre les segments de disque (14, 16, 18, 20, 22, 46, 48, 65, 66, 68, 70) est décalé par rapport aux joints de séparation (64, 64') des segments de moyeu d'un angle de 15° à 90°.
  5. Broyeur agitateur selon la revendication 3 ou 4, caractérisé en ce que les segments de disque (14, 16, 18, 20, 22, 46, 48, 64, 66, 68, 70) sont reliés aux segments de moyeu par des assemblages vissés orientés parallèlement à l'axe de rotation (A) ou dans le sens radial.
  6. Broyeur agitateur selon la revendication 5, caractérisé en ce que les faces avant et/ou arrière des segments de disque (14, 16, 18, 20, 22, 46, 48, 65, 66, 68, 70) sont munies au niveau des vissages de couvertures (78, 80) pouvant être mises en place a posteriori.
  7. Broyeur agitateur selon l'une des revendications 2 à 6, caractérisé en ce que les segments de disque (14, 16, 18, 20, 22, 46, 48, 64, 66, 68, 70) sont enduits et sont reliés au moyeu (38) par des éléments d'assemblage et les bras (28, 30) des éléments de disque butent bout à bout les uns sur les autres.
  8. Broyeur agitateur selon l'une des revendications 2 à 7, caractérisé en ce que les segments de disque (14, 16, 18, 20, 22, 46, 48, 65, 66, 68, 70) sont reliés au moyeu (38) par des assemblages vissés qui s'étendent de la zone des ouvertures (36) jusqu'à la zone du moyeu (38).
  9. Broyeur agitateur selon l'une des revendications 2 à 8, caractérisé en ce que le moyeu (38) présente un épaulement radial (72) sur lequel les segments de disque (65, 66, 68, 70) sont fixés.
  10. Broyeur agitateur selon l'une au moins des revendications précédentes, caractérisé en ce que le disque annulaire se compose de deux à cinq segments de disque (14, 16, 18, 20, 22, 46, 48, 65, 66, 68, 70) pouvant être serrés ensemble.
  11. Broyeur agitateur selon l'une au moins des revendications précédentes, caractérisé en ce que les segments de disque (14, 16, 18, 20, 22, 46, 48, 65, 66, 68, 70) s'appuient chacun sur une saillie vers l'avant et l'arrière (32, 34) sur des segments de disque voisins.
  12. Broyeur agitateur selon l'une au moins des revendications précédentes, caractérisé en ce que les segments de disque (14, 16, 18, 20, 22, 46, 48, 65, 66, 68, 70) sont munis d'un revêtement en plastique ou en caoutchouc (26).
  13. Broyeur agitateur selon l'une des revendications précédentes, caractérisé en ce que les éléments broyeurs (12) se composent de deux segments de disque qui possèdent des assemblages par rainure et clavette dans leurs bras.
  14. Broyeur agitateur selon l'une au moins des revendications précédentes, caractérisé en ce que les segments de disque (14, 16, 18, 20, 22, 46, 48, 65, 66, 68, 70) sont reliés directement entre eux par des dispositifs de goupilles ou de vissage ou de serrage sans qu'il y ait aucun moyeu.
  15. Broyeur agitateur selon l'une au moins des revendications précédentes, caractérisé en ce que les segments de disque (14, 16, 18, 20, 22, 46, 48, 65, 66, 68, 70) sont munis d'ouvertures (30).
EP03747391A 2002-04-30 2003-04-30 Broyeur agitateur Expired - Lifetime EP1511573B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10219482A DE10219482B4 (de) 2002-04-30 2002-04-30 Rührwerksmühle
DE10219482 2002-04-30
PCT/DE2003/001369 WO2003092897A1 (fr) 2002-04-30 2003-04-30 Broyeur agitateur

Publications (2)

Publication Number Publication Date
EP1511573A1 EP1511573A1 (fr) 2005-03-09
EP1511573B1 true EP1511573B1 (fr) 2010-06-09

Family

ID=29264965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03747391A Expired - Lifetime EP1511573B1 (fr) 2002-04-30 2003-04-30 Broyeur agitateur

Country Status (9)

Country Link
US (1) US20050051651A1 (fr)
EP (1) EP1511573B1 (fr)
AT (1) ATE470502T1 (fr)
AU (1) AU2003243886B2 (fr)
BR (1) BR0304566B1 (fr)
CA (1) CA2480738C (fr)
DE (2) DE10219482B4 (fr)
WO (1) WO2003092897A1 (fr)
ZA (1) ZA200406733B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010068993A1 (fr) * 2008-12-19 2010-06-24 Xstrata Technology Pty Ltd Broyeur par frottement
DE102010056287A1 (de) 2010-12-24 2012-06-28 Netzsch-Feinmahltechnik Gmbh Rührwerkskugelmühle mit Aktivrührwerk
PL2999543T3 (pl) 2013-05-21 2023-05-08 Flsmidth A/S Sposoby i urządzenie do ciągłego monitorowania zużycia w układach mielących
DE102014101727B3 (de) * 2013-11-08 2015-03-19 Netzsch-Feinmahltechnik Gmbh Verschleißschutzanordnung für eine Rührwerksmühle
DE102013225662A1 (de) * 2013-12-11 2015-06-11 Invent Umwelt- Und Verfahrenstechnik Ag Rührkörper zum Umwälzen von in einem Becken aufgenommenem Abwasser und Vorrichtung
DE102015012588B4 (de) * 2015-09-29 2017-12-28 Khd Humboldt Wedag Gmbh Rotor für eine Zerkleinerungsvorrichtung
CN108176495B (zh) * 2017-12-29 2020-06-16 徐州市万达石英有限公司 一种自动分级石英砂研磨机及其工作方法
DE102019123138A1 (de) * 2019-08-29 2021-03-04 Netzsch-Feinmahltechnik Gmbh Rührwelle für eine Rührwerkskugelmühle
DE102019129467A1 (de) 2019-10-31 2021-05-06 Netzsch-Feinmahltechnik Gmbh Rührwerksmühle
CN110813144A (zh) * 2019-11-28 2020-02-21 衡阳思迈科科技有限公司 一种导电银浆生产用粘度调节装置
WO2022016211A1 (fr) * 2020-07-20 2022-01-27 Vectis Pty Ltd as trustee for JJB Trust Broyeur

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2626757C2 (de) * 1975-07-09 1984-03-15 Meyer AG Zuchwil, Zuchwil Rührwerkmühle, insbesondere Kolloidmühle
US4021024A (en) * 1976-04-12 1977-05-03 Standard Oil Company (Indiana) Perforated baffle-impeller and process of concentrating dense masses
JPS578925Y2 (fr) * 1978-05-22 1982-02-20
US4513917A (en) * 1983-06-16 1985-04-30 Morehouse Industries, Inc. Sand mill rotor discs
DE60115392T2 (de) * 2000-01-10 2006-08-17 Premier Mill Corp. Feinmühle mit verbesserter scheibe

Also Published As

Publication number Publication date
ATE470502T1 (de) 2010-06-15
DE10219482A1 (de) 2003-11-20
DE10219482B4 (de) 2004-05-27
BR0304566B1 (pt) 2011-10-04
BR0304566A (pt) 2004-07-20
WO2003092897A1 (fr) 2003-11-13
AU2003243886B2 (en) 2006-09-07
ZA200406733B (en) 2005-07-27
EP1511573A1 (fr) 2005-03-09
US20050051651A1 (en) 2005-03-10
CA2480738C (fr) 2008-04-08
AU2003243886A1 (en) 2003-11-17
CA2480738A1 (fr) 2003-11-13
DE50312801D1 (de) 2010-07-22

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