EP2720796B1 - Rührwerkskugelmühle mit verschleissschutz - Google Patents

Rührwerkskugelmühle mit verschleissschutz Download PDF

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Publication number
EP2720796B1
EP2720796B1 EP12730170.3A EP12730170A EP2720796B1 EP 2720796 B1 EP2720796 B1 EP 2720796B1 EP 12730170 A EP12730170 A EP 12730170A EP 2720796 B1 EP2720796 B1 EP 2720796B1
Authority
EP
European Patent Office
Prior art keywords
fixing
ball mill
agitator ball
mill according
fixing pin
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.)
Active
Application number
EP12730170.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2720796A2 (de
Inventor
Andreas Seiler
Klaus Ahke
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.)
Maschinenfabrik Gustav Eirich GmbH and Co KG
Original Assignee
Maschinenfabrik Gustav Eirich GmbH and Co KG
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 Maschinenfabrik Gustav Eirich GmbH and Co KG filed Critical Maschinenfabrik Gustav Eirich GmbH and Co KG
Priority to PL12730170T priority Critical patent/PL2720796T3/pl
Publication of EP2720796A2 publication Critical patent/EP2720796A2/de
Application granted granted Critical
Publication of EP2720796B1 publication Critical patent/EP2720796B1/de
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
    • B02C17/18—Details
    • B02C17/22—Lining for containers

Definitions

  • the present invention relates to a stirred ball mill with a vertically arranged container in which a rotatable about a vertical axis agitator is arranged.
  • a stirred ball mill is filled with grinding media, which consist for example of steel or wear-resistant ceramic materials.
  • the agitator leads to a movement of the grinding media in the container.
  • the millbase to be processed is continuously fed through the container, so that the millbase is crushed by impact and shear forces between the grinding media.
  • a shelf-like wear protection element is mounted on the container inner wall .
  • This element has a variety of shelves, which are often called cassettes on.
  • grinding media is received in these shelves, which no longer participate in the grinding process and therefore protect the container inner wall from occlusion.
  • the shelf or cassette structure causes the recorded grinding media does not move during operation, so there is no relative speed between the wall and grinding media and the container inner wall is protected.
  • Such wear protection elements are usually made of steel and are therefore susceptible to corrosion. There have already been proposed designs in stainless steel, however, the wear protection extremely expensive.
  • an agitating ball mill is already known as an alternative in which the container inner wall is magnetically formed, whereby the ferromagnetic grinding bodies are held on the inner wall by the magnetic forces. Since the magnetic forces are not too strong, the wall distance to the agitator must be chosen larger, to ensure that there is no relative speed between wall and grinding media.
  • the magnetic inner wall is to be protected against corrosion. For this purpose, rubber coatings are often used, which in turn reduce the magnetic forces.
  • Such an embodiment is relatively expensive and requires the use of ferromagnetic media, which is not desirable for all applications.
  • DE 10047095 A1 discloses a wear protection plate with a protruding attachment portion held by a cup-shaped head of a bolt.
  • the wear protection element thus has to be moved away from the container wall in order to move away from the container Wall to be solved. Since, however, in grinding operation, the grinding bodies exert a force on the wear protection element in the direction of the container wall, it is ensured by the arrangement according to the invention that the wear protection element does not come from the container wall during operation can solve.
  • the attachment of the wear protection element on the wall can be done by the inventive design without tools.
  • the wear protection element when the wear protection element has a corresponding fastening recess on its rear side, the wear protection element can simply be hung on the fastening pin fastened to the container. If the wear protection element has the fastening pin, it can be pressed into the corresponding fastening recess arranged in or on the container. The wear protection element can thus be attached without tools on the wall or removed again. In contrast to the embodiments of the prior art, the wear protection element or the wear protection elements is hung only in the mounting pins.
  • the angle ⁇ is preferably more than 45 °, and most preferably about 90 °.
  • a mounting recess is understood to mean any element which can receive and hold the mounting pin.
  • the mounting recess does not necessarily have to be within a surface, for. B. the back of the wear protection element, be arranged, but may also be arranged in the form of a pipe clamp-like element on the back of the wear protection element or on the container inner wall.
  • the fastening recess or fastening pin has an elastic element which is configured such that the thickness of the fastening pin is greater than the width of the fastening recess, so that the fastening pin only under application of a release force which is greater than the restoring force of the elastic element can be removed from the mounting recess.
  • the elastic element must be elastically deformed during fastening and release.
  • the elastic element can be arranged on the fastening recess and can at least partially close it.
  • the mounting pin in order to solve the wear protection element of the container inner wall, the mounting pin must be pulled out of the mounting recess and thereby displaced the elastic element from its rest position. Thus, the restoring force of the elastic element must be overcome. Likewise, when inserting the fastening pin in the mounting recess, the elastic element must be brought from its rest position.
  • An alternative embodiment provides that the angle ⁇ ⁇ 90 ° and the direction of movement with the direction of the weight of the wear protection element an angle ⁇ > 90 ° includes. This has the consequence that for releasing the wear protection element this must be raised a little. As a result, an unwanted detachment of the wear protection element of the container wall, for. B. prevented when opening the container.
  • wear protection element and container inner wall have latching means with the aid of which the wear protection element can be latched to the container inner wall.
  • the container inner wall has a plurality of web-like projections, wherein the web-like projections have at least one fastening pin.
  • the web-like projections preferably extend vertically or horizontally and best vertically and horizontally.
  • the web-like projections have a height which is smaller than the thickness of the wear protection element, wherein preferably the web-like projections are arranged such that the wear protection element in the fastened position, i. when the fastening pin is arranged in the fastening recess, comes into contact with a web-like projection.
  • the web-like projections provide a stop surface for the wear protection element, which prevents a relative movement of the wear protection element relative to the container inner wall.
  • the elastic element is best designed such that the force required to secure the wear protection element to the container wall is less than the force required to dislodge the wear protection element from the container wall.
  • the elastic element has at least one or preferably two tongue element extending from the edge of the fastening recess over a part of the recess, the tongue element being angled towards the rear side of the wear protection element in the direction of the fastening recess or having a corresponding angled section.
  • the mounting pin can be pressed with a comparatively small force in the mounting recess.
  • the opposite way requires a greater force, since the tongue element must now be much further deflected from its rest position.
  • the at least one tongue element, the fastening recess and the fastening pin are dimensioned such that in the position in which the fastening pin is received in the fastening recess, the fastening pin both with the bottom surface of the mounting recess and with the end face of the at least one Tongue element is in contact.
  • elastic ramp means would also be conceivable whose ramp angle is smaller in the direction of attachment than in the release direction.
  • the wear protection element consists essentially of plastic or rubber. In principle, it may also consist entirely of plastic or rubber, but metallic reinforcing elements may be advantageous.
  • the wear protection element has a plurality of open chambers or cassettes for receiving grinding bodies.
  • FIG. 1 a wear protection element 1 is shown.
  • the wear protection element 1 is made of plastic. It shows a front in which a plurality of chambers 2 is introduced.
  • the wear protection element 1 is curved, wherein the curvature of the curvature of the container inner wall corresponds to which the wear protection element is attached.
  • FIG. 2 is a view from the rear of the wear protection element 1 can be seen.
  • a total of four mounting recesses 4 are arranged.
  • These fastening recesses 4 are partially covered by elastically deformable tongue elements 5, wherein the elastically deformable tongue elements 5 have a straight section which essentially follows the rear side surface and an angled section 6 which is angled in the direction of the bottom of the fastening recess 4.
  • the support structure 7 is shown, which is attached to the container inner wall.
  • the support structure 7 has a series of horizontally extending web-like projections 8, in which extending in the vertical direction parallel to the container inner wall mounting pins 9 extend both upwards and downwards.
  • web-like projections 10 are arranged, which have fastening holes 11, with which the support structure 7 can be attached to the container.
  • fastening pins 9 are also provided here, which, however, extend only in one direction.
  • vertically extending web-like projections 12 are provided, which likewise have fastening holes 11, with which the fastening structure 7 can be fastened to adjacent fastening structures.
  • FIG. 5 is the wear protection element 1 off FIG. 1 shown in front of the attachment structure. It can be seen that the fastening pins 9 are arranged such that they can be placed in the fastening recesses 4. The wear protection elements 1 can thus be easily clicked on the support structure.
  • FIG. 7 shows a sectional view illustrating the situation with in the fastening structure 7 clicked wear protection element.
  • the fastening pins 9 are arranged in the fastening recess 4 in this situation.
  • the elastic element with its tongue sections 6 is arranged such that the end faces of the tongue element 6 are in contact with the fastening pin 9.
  • the construction according to the invention is very light and can be clicked by a person in a very short time in the support structure 7 and taken out of it again.
  • the usual service life for replacing the wear protection elements can thus be drastically reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Accessories For Mixers (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
EP12730170.3A 2011-06-14 2012-06-04 Rührwerkskugelmühle mit verschleissschutz Active EP2720796B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12730170T PL2720796T3 (pl) 2011-06-14 2012-06-04 Młyn kulowy z mieszadłem, wyposażony w element zabezpieczający przed ścieraniem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011051041A DE102011051041A1 (de) 2011-06-14 2011-06-14 Rührwerkskugelmühle mit Verschleißschutz
PCT/EP2012/060523 WO2012171825A2 (de) 2011-06-14 2012-06-04 RÜHRWERKSKUGELMÜHLE MIT VERSCHLEIßSCHUTZ

Publications (2)

Publication Number Publication Date
EP2720796A2 EP2720796A2 (de) 2014-04-23
EP2720796B1 true EP2720796B1 (de) 2015-11-18

Family

ID=46395584

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12730170.3A Active EP2720796B1 (de) 2011-06-14 2012-06-04 Rührwerkskugelmühle mit verschleissschutz

Country Status (16)

Country Link
US (1) US9517470B2 (es)
EP (1) EP2720796B1 (es)
JP (1) JP5928924B2 (es)
KR (1) KR101921904B1 (es)
CN (1) CN103596693B (es)
AU (1) AU2012269212B2 (es)
BR (1) BR112013031253A2 (es)
CA (1) CA2833519A1 (es)
DE (1) DE102011051041A1 (es)
ES (1) ES2559291T3 (es)
MX (1) MX2013012737A (es)
PL (1) PL2720796T3 (es)
RU (1) RU2565729C2 (es)
UA (1) UA111611C2 (es)
WO (1) WO2012171825A2 (es)
ZA (1) ZA201308081B (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9757731B2 (en) * 2013-09-11 2017-09-12 Didion Manufacturing Company Interlocking liner segments for a tumbling unit
US10668478B2 (en) 2013-09-11 2020-06-02 Distron Manufacturing Co. Multi directional rifling and multi flow variable speed rifling for liner segments for crushers, reclaimers, separators and cleaners for products
DE102014101727B3 (de) 2013-11-08 2015-03-19 Netzsch-Feinmahltechnik Gmbh Verschleißschutzanordnung für eine Rührwerksmühle
DE102013114001B3 (de) * 2013-12-13 2015-02-19 Netzsch-Feinmahltechnik Gmbh Mahlvorrichtung mit Verschleißscheibe
KR101662073B1 (ko) 2016-02-25 2016-10-10 (주)시내산업 분쇄용 튜브밀의 스크린 플레이트
DE102019123138A1 (de) 2019-08-29 2021-03-04 Netzsch-Feinmahltechnik Gmbh Rührwelle für eine Rührwerkskugelmühle
SE544627C2 (en) * 2020-12-17 2022-09-27 Metso Outotec Finland Oy Screw flight system, replacement kit, a vertical grinding mill, and method of mounting the same

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS597494Y2 (ja) * 1976-04-02 1984-03-07 日本ビクター株式会社 扉，蓋の閉止具
JPS52145679U (es) * 1976-04-30 1977-11-04
AT390895B (de) * 1986-09-18 1990-07-10 Voest Alpine Ag Kugelmuehle, sowie rillenpanzerung fuer eine kugelmuehle
DE4039257A1 (de) * 1990-12-08 1992-06-11 Forsch Aufbereitung Innenauskleidung fuer rohrkugelmuehlen
JP2501664B2 (ja) * 1991-01-28 1996-05-29 住金鋼材工業株式会社 蓋の取付部構造
JP3231538B2 (ja) * 1994-03-25 2001-11-26 株式会社クボタ 竪型媒体撹拌粉砕機の処理筒内面保護構造
AT3170U1 (de) * 1998-12-21 1999-11-25 Pfeiffer Christian Maschf Verschleissauskleidung für rohr- und/oder kugelmühlen
US6390401B1 (en) * 1999-08-18 2002-05-21 Servicios Y Consultorias Hendaya S.A. Liner segment locator/retainer for ORE grinding mills
DE10047095A1 (de) * 2000-09-21 2002-04-18 Verschleis Technik Dr Ing Hans Verschleißschutz für eine verschleißbeanspruchte Maschinenoberfläche
RU104093U1 (ru) * 2010-12-31 2011-05-10 Открытое акционерное общество "Уральский завод резиновых технических изделий" Футеровка барабанных рудоразмольных мельниц (варианты)
JP7055297B2 (ja) * 2018-04-12 2022-04-18 株式会社フレイ・スリー 映像作品を作成するための装置、方法、及びプログラム

Also Published As

Publication number Publication date
KR20140051233A (ko) 2014-04-30
WO2012171825A3 (de) 2013-05-16
EP2720796A2 (de) 2014-04-23
AU2012269212B2 (en) 2016-09-29
CN103596693A (zh) 2014-02-19
BR112013031253A2 (pt) 2016-12-06
AU2012269212A1 (en) 2013-11-14
ES2559291T3 (es) 2016-02-11
CA2833519A1 (en) 2012-12-20
US20140097281A1 (en) 2014-04-10
RU2014100901A (ru) 2015-07-20
JP5928924B2 (ja) 2016-06-01
RU2565729C2 (ru) 2015-10-20
UA111611C2 (uk) 2016-05-25
JP2014516786A (ja) 2014-07-17
ZA201308081B (en) 2015-01-28
DE102011051041A1 (de) 2012-12-20
KR101921904B1 (ko) 2018-11-26
WO2012171825A2 (de) 2012-12-20
US9517470B2 (en) 2016-12-13
CN103596693B (zh) 2015-05-06
PL2720796T3 (pl) 2016-05-31
MX2013012737A (es) 2013-12-02

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