EP0998353B1 - Rohrmühle - Google Patents

Rohrmühle Download PDF

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Publication number
EP0998353B1
EP0998353B1 EP98940157A EP98940157A EP0998353B1 EP 0998353 B1 EP0998353 B1 EP 0998353B1 EP 98940157 A EP98940157 A EP 98940157A EP 98940157 A EP98940157 A EP 98940157A EP 0998353 B1 EP0998353 B1 EP 0998353B1
Authority
EP
European Patent Office
Prior art keywords
plates
mill
distinguished
plate
fact
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.)
Revoked
Application number
EP98940157A
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English (en)
French (fr)
Other versions
EP0998353A1 (de
Inventor
Robert Schneider
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.)
Magotteaux International SA
Original Assignee
Magotteaux International SA
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Filing date
Publication date
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Application filed by Magotteaux International SA filed Critical Magotteaux International SA
Publication of EP0998353A1 publication Critical patent/EP0998353A1/de
Application granted granted Critical
Publication of EP0998353B1 publication Critical patent/EP0998353B1/de
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 rotary mill comprising a cylindrical shell fitted with an inner shielding and intended for contain material to be ground and a load of grinding media, in which the shielding, which consists of rings of shielding plates individual juxtaposed, has longitudinal undulations interior to favor the lifting of the load and the material to grind during rotation of the grinder.
  • the invention relates more particularly to the shredders used in cement plant and in the mining industry.
  • These shredders are made up of a metallic cylindrical ferrule rotating around its axis longitudinal and containing a grinding load made up of machines grinders, usually balls, but can also be made up of cylpeps, boulpeps, etc. of variable dimensions.
  • the material to be ground is introduced on one side of the mill and, as and when measure of its progress towards the exit, on the opposite side, it is crushed and crushed between the crushing machines.
  • the shielding must have a profile such that it picks up the load up to a level such that it remains compact because a lift too important causes the projection of balls beyond the foot of the charge, that is, the balls directly hit the shield, without interposition of material to be ground.
  • the load must be raised enough so that there is good mixing of the mass. It goes without saying that the filling coefficient plays a role determining in the grinding efficiency and that the shaped area bean occupied by the load must have a shape, a position and well-defined dimensions for efficient grinding and optimal.
  • the armor plates are subject to wear intense so that even if the lifting conditions are optimal at the start, they can deteriorate quickly due to change of the profile of the plates caused by wear.
  • Document DE 1126709 describes a crusher whose plates of shield form steps in the direction of rotation. different plates of different radial depths follow one another in a determined order. The side with the greatest radial depth is found at the front, seen in the direction of rotation. This presents the disadvantage that the grinding machines are projected, which reduces grinding efficiency and increases the risk of plate rupture.
  • the steps of a ring are offset from the terraces of an adjacent ring, i.e. the terraces are not axially aligned. This causes shear forces which increase the speed of wear of the plates on the edges.
  • Document WO 86/04267 also describes a grinder, the armor plates are arranged in steps to form lifting ramps. In this grinder, there is, in fact, only one type bleachers. In addition, the plates are bolted to the ferrule of so that the arrangement of the plates is limited to the configuration of the holes in the shell.
  • the object of the present invention is to provide a new type shielding which alleviates the disadvantages described above and, more particularly, a grinder whose shield is formed of armor plates which allow the lifting profile to be adapted to parameters and operating conditions of the mill and which changes less quickly due to wear.
  • each plate has, on the rear face, seen in the direction of rotation, a step with a higher radial height than the front face, in this that each plate ring has several types of plates which differ, at least, by the radial height of their tier and by the nature of their material and which follow one another in the circumferential direction, according to a determined order.
  • a certain number of one of the types of plates are bolted mounting plates at the ferrule, all the other plates not necessarily fixed to the ferrule by bolts but being held in place by simple arch effect.
  • the different types of plates also differ in the nature of their material. We can therefore combine different types of plates depending on their risk of wear. It thus becomes possible to produce a profile of lift which is less vulnerable to wear, i.e. to keep longer the initial lift profile. It is also possible to combine the plates optimally to have both good wear resistance and good impact resistance.
  • Armor plates with the exception of fixing plates, preferably have, on their radial faces, at least one longitudinal rib, respectively a longitudinal groove corresponding or vice versa to interlock with each other and be held in place by the fixing plates.
  • Each of the plates is preferably sized to so as not to exceed a weight of 25 kg. This reduced weight facilitates handling of the plates and is within the limits imposed by new legislation.
  • smaller, chunky plates allow the use of less resilient steels or cast iron, which allows to choose better compromises wear / impact resistance than with conventional shields.
  • FIGS 1 and 2 show different types of plates shield 10, 10a, 12 and 14 having a slightly outer surface curve to match the inside of the cylindrical shell of the grinder indicated schematically by the reference 16. Seen in the direction of rotation of the mill, represented by arrow A, every plates have a front face whose height is less than that of the rear face so as to define a step on the side rear of each plate, step which has a rounded 10b, 12b, 14b, so that the juxtaposition of the plates creates a wavy profile.
  • the different types of plates are distinguished at least by the height of their rear face, that is to say the height of their step 10b, 12b and 14b. This is how the step 14b of the plates 14 is more marked as the step 12b of the plates 12 which, in turn, is more marked as the step 10b of the plates 10 or 10a. From the point of view of contribution to the shape of the interior profile, plates 10 and 10a are identical since they have the same tier. The plaques 10 and 10a can therefore be considered of the same type, so that Figures 1 and 2 show three different types of plates.
  • plates 10a are fixing plates and have, for this purpose, an opening central 18 to be bolted to the shell 16 through a hole of the ferrule 16.
  • each plate has, on the rear face, over the entire length, a groove 20 and on the front face, a corresponding rib 22 which can be engaged in the groove 20 of the previous plate.
  • the grooves 20 and the ribs 22 can, of course, be reversed.
  • the fixing plates 10a have neither rib nor groove.
  • the front and rear faces are smooth and re-entrant, converging thus towards the ferrule 16.
  • the timing is achieved by means of corners 24 and 26 of triangular section which are inserted between the plates of fixing and neighboring plates. These corners 24 and 26 have inclined inner faces complementary to the inclined faces of the mounting plate 10a.
  • the outer faces of the corners 24 and 26 are straight and provided with a groove 20, respectively with a rib 22 to fit into the rib 22, respectively in the groove 20 of the adjacent plates.
  • the different types of plates 10, 12 and 14 can be differentiate, in addition to the height of their step, by the nature of their material or alloy.
  • the plates most exposed to wear in particular the plates 12 and 14 with the most marked step, can be made of cast iron with good wear resistance and plates 10 which are less exposed may be made of steel. We see thus to a more regular wear which maintains the profile longer initial reliever.
  • the overall dimensions of the different plates are preferably such that their weight does not exceed 25 kg.
  • their outer side ferrule side has indentations as shown schematically in lines interrupted 28.
  • Figures 3 and 4 show a first example of arrangement plates according to which only two types of plates are used 10 and 12 and according to which, on each plate of a type 10 or 12, are juxtaposed two plates of the other type 12 or 10.
  • FIGs 5 and 6 illustrate an arrangement similar to previous but here, we alternate the type 10 plates with those of type 14.
  • Figures 7 and 8 illustrate an example of arrangement with a double alternation of the three types of plates 10, 12 and 14.
  • the chosen combination is: 10-12-10-14-10-12 ..., that is to say that there is twice as many type 10 plates as type 12 plates and type 14 plates.
  • the conditions are different depending on which one is on the side of entrance or exit side, especially as a result of grinding progressive and changing grain size of the material to be ground.
  • the invention therefore provides for a new crusher with shielding perfectly modular and adaptable to conditions and parameters variables.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Food-Manufacturing Devices (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Surgical Instruments (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Control Of Metal Rolling (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Disintegrating Or Milling (AREA)

Claims (7)

  1. Trommelmühle mit zylinderförmigem Mantel (16), der innen ausgekleidet ist und dazu bestimmt ist, das zu zerkleinernde Gut aufzunehmen, und mit einer Ladung von Mahlkörpern, in der die Auskleidung, die aus einzelnen, nebeneinander gesetzten Ringen aus Panzerplatten besteht, innere Hubprofile in Längsrichtung aufweist, um das Hochsteigen der Ladung und des Mahlguts bei der Drehung der Mühle zu unterstützen; dadurch gekennzeichnet, dass jede Platte auf der Rückseite in Drehrichtung der Mühle eine Stufe (10b, 12b, 14b) aufweist, die in radialer Richtung höher ist als die Vorderseite, dadurch, dass jeder Plattenring mehrere Arten unterschiedlicher Platten (10, 12, 14) umfasst, die sich voneinander wenigstens durch die radiale Höhe ihrer Stufe (10b, 12b, 14b) unterscheiden, und die in Umfangsrichtung in einer bestimmten Reihenfolge aufeinander folgen und in axialer Richtung fluchten; dabei dient eine bestimmte Anzahl eines Plattentyps (10) als Befestigungsplatten (10a), die mit dem Mantel (16) verschraubt sind; alle anderen Platten sind nicht mit dem Mantel (16) verschraubt, sondern werden durch die Wirkung der Wölbung gehalten.
  2. Mühle nach Anspruch 1, dadurch gekennzeichnet, dass die verschiedenen Plattentypen (10, 12, 14) sich auch durch die Art ihres Werkstoffs unterscheiden.
  3. Mühle nach Anspruch 1, dadurch gekennzeichnet, dass die Platten mit der am meisten ausgeprägten Stufe aus Gusseisen bestehen und die Platten mit der am wenigsten ausgeprägten Stufe aus Stahl.
  4. Mühle nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass alle Panzerplatten mit Ausnahme der Befestigungsplatten (10a) auf ihrer Vorderseite und auf ihrer Rückseite mindestens eine Längsrippe (22) bzw. eine entsprechende Längsrille (20) oder umgekehrt aufweisen, um ineinander gefügt und zwischen den Befestigungsplatten (10a) gehalten zu werden.
  5. Mühle nach Anspruch 4, dadurch gekennzeichnet, dass die Rück- und Vorderseiten der Befestigungsplatten (10a) im Mantel (16) zusammenlaufen und von den anschließenden Panzerplatten durch Keilstücke (24, 26) getrennt sind, die auf ihrer Außenseite eine Rille (20) bzw. eine Rippe (22) aufweisen, die mit der Rippe (22) bzw. Rille (20) jeder angrenzenden Platte zusammengefügt wird.
  6. Mühle nach Anspruch 5, dadurch gekennzeichnet, dass die Keilstücke (24, 26) unterschiedliche Dicken aufweisen.
  7. Mühle nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass jeder Plattentyp ein Gewicht unter 25 kg aufweist.
EP98940157A 1997-07-17 1998-07-07 Rohrmühle Revoked EP0998353B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE9700626A BE1011286A3 (fr) 1997-07-17 1997-07-17 Broyeur rotatif.
BE9700626 1997-07-17
PCT/EP1998/004188 WO1999003587A1 (de) 1997-07-17 1998-07-07 Broyeur rotatif

Publications (2)

Publication Number Publication Date
EP0998353A1 EP0998353A1 (de) 2000-05-10
EP0998353B1 true EP0998353B1 (de) 2004-12-22

Family

ID=3890650

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98940157A Revoked EP0998353B1 (de) 1997-07-17 1998-07-07 Rohrmühle

Country Status (20)

Country Link
US (1) US6206310B1 (de)
EP (1) EP0998353B1 (de)
JP (1) JP2002508706A (de)
KR (1) KR100423355B1 (de)
CN (1) CN1107549C (de)
AT (1) ATE285296T1 (de)
AU (1) AU725428B2 (de)
BE (1) BE1011286A3 (de)
BR (1) BR9809494A (de)
CZ (1) CZ296624B6 (de)
DE (1) DE69828286T2 (de)
ES (1) ES2235354T3 (de)
HU (1) HU227892B1 (de)
ID (1) ID23878A (de)
PL (1) PL195391B1 (de)
PT (1) PT998353E (de)
RU (1) RU2198030C2 (de)
TR (1) TR199903248T2 (de)
WO (1) WO1999003587A1 (de)
ZA (1) ZA986342B (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1014208A3 (fr) 2001-05-31 2003-06-03 Magotteaux Int Procede de pose de la derniere plaque d'une couronne de plaques de blindage dans un broyeur rotatif et dispositif pour la mise en oeuvre du procede.
BE1014412A3 (fr) 2001-10-03 2003-10-07 Magotteaux Int Assemblage de plaques d'usure.
US7497395B2 (en) * 2006-06-07 2009-03-03 Lawrence K. Nordell Rock grinding mill and method
EA200700786A1 (ru) * 2007-03-27 2007-10-26 Общество С Ограниченной Ответственностью "Златоустовский Литейный Завод-Метапласт" Броневая плита для футеровки барабана трубной мельницы
US8746601B2 (en) * 2008-04-01 2014-06-10 Weir Minerals Australia, Ltd. Lifter bar assembly for a crushing mill and method of installation
US20130062449A1 (en) * 2010-05-14 2013-03-14 Polycorp Ltd. Lifter bar assembly and grinding mill including same
US8622330B2 (en) 2011-01-13 2014-01-07 Polycorp Ltd. Mill liner assembly
CN102319598A (zh) * 2011-06-30 2012-01-18 江苏科行环境工程技术有限公司 卧辊磨自锁衬板装置
EP2730337B1 (de) 2012-11-08 2016-10-12 Sandvik Intellectual Property AB Verschleißfeste Auskleidung für Brecher
CN103191807B (zh) * 2013-04-28 2016-04-27 昆明学院 一种球磨机的等强度回转体
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
CN104668058B (zh) * 2013-12-03 2017-08-18 陈乔 一种新型球磨机衬板及其衬板安装方法
CN104525323A (zh) * 2014-12-30 2015-04-22 安徽海螺川崎装备制造有限公司 一种管磨机用衬板结构
CN104689886B (zh) * 2015-03-13 2017-04-05 江苏力威剪折机床有限公司 一种高速球磨机
WO2016172338A1 (en) * 2015-04-22 2016-10-27 Nordell Lawrence K Rock mill lifter
JP6426593B2 (ja) * 2015-12-16 2018-11-21 株式会社栗本鐵工所 破砕機
CA2967850A1 (en) 2016-05-19 2017-11-19 Polycorp Ltd. Liner system for a mill shell
RU173347U1 (ru) * 2016-12-27 2017-08-23 Хенкин Михаил Александрович Мельница шаровая
CZ307423B6 (cs) * 2017-08-31 2018-08-08 Vysoká Škola Báňská -Technická Univerzita Ostrava Kulový mlýn s fluidizačním zařízením
CN107670785A (zh) * 2017-11-13 2018-02-09 盐城吉达环保设备有限公司 一种球磨机衬板阻流装置
CN108405092A (zh) * 2018-05-25 2018-08-17 达州市唐氏铸钢有限公司 一种高效水泥磨磨内结构
CL2018002389A1 (es) * 2018-08-21 2019-02-08 Compania Electro Metalurgica S A Levantadores para uso en equipos de conminución en faenas industriales y mineras
CN112638539A (zh) 2018-08-28 2021-04-09 加拿大矿业创新委员会 单辊研磨机
CN110170359B (zh) * 2019-05-28 2020-11-13 日照宝岚新材料科技有限公司 一种球磨机内衬板
CN112892751B (zh) * 2021-01-15 2022-11-08 重庆聚威节能建材有限公司 球磨机内壁保护装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE399990C (de) * 1923-03-20 1924-08-11 Maschb Anstalt Humboldt Kugelmuehle mit aus Mahlbalken hergestellter Mahlbahn
US2268661A (en) * 1939-07-07 1942-01-06 Kennedy Van Saun Mfg & Eng Tube mill
FR1075555A (fr) * 1953-03-09 1954-10-18 Garnier & Cie G Plaque de blindage de revêtement intérieur des broyeurs à boulets ou autres corpsbroyants
DE1126709B (de) * 1960-08-26 1962-03-29 Miag Muehlenbau & Ind Gmbh Rohrmuehle
US3462090A (en) * 1966-12-14 1969-08-19 Coors Porcelain Co Liner for crinding mills
DE1945933A1 (de) * 1969-09-11 1971-03-18 Willy Rueschhoff Fa Mahlplattenauskleidung fuer Mahlkammern von Kugelmuehlen
DE2141823A1 (de) * 1971-08-20 1973-03-01 Kloeckner Werke Ag Rohrmuehle
DE2432121A1 (de) * 1973-07-19 1975-02-20 Waagner Biro Ag Rohrmuehle
US4609158A (en) * 1984-04-16 1986-09-02 Midland-Ross Corporation Composite grinding mill liner
WO1986004267A1 (en) * 1985-01-25 1986-07-31 Evans Products Company Shell liner assembly

Also Published As

Publication number Publication date
WO1999003587A1 (de) 1999-01-28
HUP0004523A3 (en) 2001-11-28
BR9809494A (pt) 2000-06-20
CZ200016A3 (cs) 2000-06-14
CN1107549C (zh) 2003-05-07
DE69828286T2 (de) 2005-12-15
PL195391B1 (pl) 2007-09-28
ZA986342B (en) 1999-02-03
RU2198030C2 (ru) 2003-02-10
US6206310B1 (en) 2001-03-27
PL337700A1 (en) 2000-08-28
CN1258233A (zh) 2000-06-28
ES2235354T3 (es) 2005-07-01
TR199903248T2 (xx) 2000-07-21
HUP0004523A2 (hu) 2001-04-28
HU227892B1 (en) 2012-05-29
KR20010013531A (ko) 2001-02-26
BE1011286A3 (fr) 1999-07-06
AU725428B2 (en) 2000-10-12
KR100423355B1 (ko) 2004-03-19
ATE285296T1 (de) 2005-01-15
EP0998353A1 (de) 2000-05-10
AU8857398A (en) 1999-02-10
CZ296624B6 (cs) 2006-05-17
DE69828286D1 (de) 2005-01-27
PT998353E (pt) 2005-04-29
JP2002508706A (ja) 2002-03-19
ID23878A (id) 2000-05-25

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