WO2002011890A1 - Modular lining for grinding mill and method to assemble and install it - Google Patents
Modular lining for grinding mill and method to assemble and install it Download PDFInfo
- Publication number
- WO2002011890A1 WO2002011890A1 PCT/EP2001/008189 EP0108189W WO0211890A1 WO 2002011890 A1 WO2002011890 A1 WO 2002011890A1 EP 0108189 W EP0108189 W EP 0108189W WO 0211890 A1 WO0211890 A1 WO 0211890A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lining
- grinding mills
- lifter
- drum
- mill
- Prior art date
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
- B02C17/18—Details
- B02C17/22—Lining for containers
Definitions
- the present invention relates to a wear and tear resistant lining for grinding mills, and to a method for assembling and installing it.
- the already known ceramic linings for grinding mills consist of ceramic tiles which are directly applied to the inner surface of the grinding chamber of the mill, hereinafter called “drum”, in order to protect the wall of the drum from the wear and tear, due to the grinding action, to lengthen the life of the mill and to prevent pollution of the ground material.
- These linings further comprise longitudinally extending bars, which are also called
- lifters which improve the grinding action inside the mill and are obviously also subjected to wear and tear or damages. Once consumed or damaged, the ceramic lining and/or the lifters have to be removed and replaced by a new lining.
- the present invention refers to a lining for grinding mills formed by a plurality of modules consisting of a metal support to which are fixed the ceramic tiles, said modules being kept adherent to said internal surface of the mill drum by lifters fixed to the drum by appropriate fixing means.
- Figure 1 shows the cross-section of the mill drum with the lining modules and the lifters
- Figure 2 shows the planar projection of the internal surface of the mill drum in a particular embodiment of the invention (see below);
- Figure 3 shows in particular the cross section of a lining module;
- Figure 4 shows a particular realisation of the fixing of the tiles to the metal support;
- Figure 5 show in particular the engagement between lifter and the modules once mounted inside the mill drum
- Figure 6 shows a particular embodiment of the means for fixing the lifters. Detailed description of the invention
- the present invention allows to overcome the above said problems thanks to an easily removable ceramic lining wherein the ceramic lining is constituted of modules as above described.
- the ceramic lining according to the invention overcomes the drawbacks of the already known ceramic mill linings, providing an effective ceramic mill lining which can be easily substituted, totally or partially, when necessary. Moreover the invention refers to a module of ceramic lining as above described and to a method to replace a ceramic mill lining with a minimum loss of time.
- a module 10 consists of a metal support 11 and ceramic tiles 13 which are applied to and completely cover one surface of the metal support 11 leaving the two lateral free margins 14 (see Fig. 3).
- the metal support 11 is normally a metal plate, preferably shaped in order to match the inner surface of the mill drum 12.
- the lifters 15 consist of bars of ceramic, gum, resin or other suitable material capable to fit in the space formed by the free margins 14 of two adjacent modules and protruding above the tiles of said adjacent modules; they are provided with suitable fixing means in order to be fixed to the mill drum in an easily removable manner. In view of their mutual disposition the fixing of the lifter to the mill drum automatically implies that also the module will be kept fixed to the internal surface of the mill drum.
- the lifter can preferably be oriented to form, on the inner surface of the mill drum, an appropriate angle with the axis of the drum, i.e. forming a coil portion (see Figure 2).
- the lifters besides improving the grinding action as above said, also "classify" the grinding elements possibly used for grinding (as for example the balls used in ball mills) distributing them along the longitudinal axis of the drum in relation with their dimensions and weight.
- Figure 2 shows also the opening 29 allowing entry to the mill drum for the necessary reparations.
- the tiles 13 are fixed to the metal support 11 by a film of glue.
- the inner surface of the metal support 11 is provided of "T" shaped emerging section 16 to which the tiles 13 can be anchored by accordingly shaped cavities 17 which can also, if preferred, be filled with glue (see Fig. 4).
- the described embodiment allows, once one or more tiles are to be substituted, to replace them without the need of disassembling the whole lining from the mill drum. In fact it will be sufficient to remove the lifters corresponding to the modules containing the damaged tiles and these will be easily removed and substituted.
- Lifter fixing means consist of a generally "U” shaped metal structure 18 (see Figure 6).
- the "U" structure 18 is provided with a first portion 19 able to hold the lifter bar and with a second portion 20 able to be fixed to the mill drum.
- said "U" shaped first portion 19 consists of a metal convex section into which the ceramic body of the lifter bar can be blocked possibly by the aid of suitable glue and/or resin.
- the anchoring between the ceramic body and the metal structure of the lifter is preferably ensured by lateral cavities 21 present in the ceramic body which can house the wall of the first portion 19 and are possibly filled by a suitable glue and/or resin.
- an appropriate shaping for example rounded
- said second portion 20 of the metal structure of the lifter consists of a "U" shaped metal section fixed to the external surface of the first portion 19 on the sides 22 and forming with the bottom of the latter a free gap 23. Inside this gap 23 can be housed the head of bolts 24 passing through corresponding rail 25 present in the bottom surface of the second portion 20 and then through the space left in between the two metal support of two adjacent modules and through further holes 26 present in the mill drum 12. The lifter is finally fixed to the drum with nuts 27.
- a first lifter 15 is fixed to the mill drum 12 and subsequently a first longitudinal row of modules 10 is placed all along the length of the lifter, so that its side free margin 14 is comprised between the inner surface of the drum and the bottom surface of the lifter metal structure 18. Thereafter it is sufficient to tighten the fixing bolts 24 of the lifter by suitable nuts 27 operated on the outside of the mill drum. The same operations are repeated until the whole internal surface of the drum is covered by modules.
- the lifter and the tiles disposed along the free margin 14 are mutually so shaped in order to allow an easy positioning of the lifter by sliding in the channel formed by the free spaces 14.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Finishing Walls (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2001289662A AU2001289662A1 (en) | 2000-08-10 | 2001-07-16 | Modular lining for grinding mill and method to assemble and install it |
PL01358786A PL358786A1 (en) | 2000-08-10 | 2001-07-16 | Modular lining for grinding mill and method to assemble and install it |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00117128.9 | 2000-08-10 | ||
EP00117128A EP1181981A1 (en) | 2000-08-10 | 2000-08-10 | Modular lining for grinding mill and method to assemble and install it |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002011890A1 true WO2002011890A1 (en) | 2002-02-14 |
Family
ID=8169485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/008189 WO2002011890A1 (en) | 2000-08-10 | 2001-07-16 | Modular lining for grinding mill and method to assemble and install it |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1181981A1 (en) |
AU (1) | AU2001289662A1 (en) |
CZ (1) | CZ2003398A3 (en) |
PL (1) | PL358786A1 (en) |
RU (1) | RU2003106406A (en) |
WO (1) | WO2002011890A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009121129A1 (en) * | 2008-04-01 | 2009-10-08 | Weir Minerals Australia Ltd | A lifter bar assembly for a crushing mill and method of installation |
EP2674218A1 (en) * | 2012-06-13 | 2013-12-18 | Sandvik Intellectual Property AB | Means for securing jaw plates in a jaw crusher |
EP2674219A1 (en) * | 2012-06-13 | 2013-12-18 | Sandvik Intellectual Property AB | Means for securing jaw plates in a jaw crusher |
RU191600U1 (en) * | 2019-06-03 | 2019-08-13 | федеральное государственное бюджетное образовательное учреждение высшего образования "Белгородский государственный технологический университет им. В.Г. Шухова" | TUBING BALL BALL MILL |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104475201B (en) * | 2010-12-14 | 2018-08-28 | 伟尔矿物澳大利亚私人有限公司 | Tool, lifting device and its attachment method for rising lifter stick |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2611546A (en) * | 1949-11-15 | 1952-09-23 | Kensington Steel Company | Liner construction for grinding mills |
GB1105017A (en) * | 1964-11-05 | 1968-03-06 | Trelleborgs Gummifabriks Ab | Improvements in walls |
US3462090A (en) * | 1966-12-14 | 1969-08-19 | Coors Porcelain Co | Liner for crinding mills |
FR2131454A5 (en) * | 1971-03-17 | 1972-11-10 | Continental Gummi Werke Ag | Wear-resistant liner - for ball or tube mill |
US4289279A (en) * | 1977-02-25 | 1981-09-15 | Trelleborg Ab | Mill lining |
-
2000
- 2000-08-10 EP EP00117128A patent/EP1181981A1/en not_active Withdrawn
-
2001
- 2001-07-16 AU AU2001289662A patent/AU2001289662A1/en not_active Abandoned
- 2001-07-16 PL PL01358786A patent/PL358786A1/en unknown
- 2001-07-16 CZ CZ2003398A patent/CZ2003398A3/en unknown
- 2001-07-16 RU RU2003106406/03A patent/RU2003106406A/en not_active Application Discontinuation
- 2001-07-16 WO PCT/EP2001/008189 patent/WO2002011890A1/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2611546A (en) * | 1949-11-15 | 1952-09-23 | Kensington Steel Company | Liner construction for grinding mills |
GB1105017A (en) * | 1964-11-05 | 1968-03-06 | Trelleborgs Gummifabriks Ab | Improvements in walls |
US3462090A (en) * | 1966-12-14 | 1969-08-19 | Coors Porcelain Co | Liner for crinding mills |
FR2131454A5 (en) * | 1971-03-17 | 1972-11-10 | Continental Gummi Werke Ag | Wear-resistant liner - for ball or tube mill |
US4289279A (en) * | 1977-02-25 | 1981-09-15 | Trelleborg Ab | Mill lining |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009121129A1 (en) * | 2008-04-01 | 2009-10-08 | Weir Minerals Australia Ltd | A lifter bar assembly for a crushing mill and method of installation |
US8746601B2 (en) | 2008-04-01 | 2014-06-10 | Weir Minerals Australia, Ltd. | Lifter bar assembly for a crushing mill and method of installation |
EA021505B1 (en) * | 2008-04-01 | 2015-07-30 | Уиэр Минералз Острейлиа Лтд. | A lifter bar assembly for a crushing mill and method of retro-fitting same |
US9266111B2 (en) | 2008-04-01 | 2016-02-23 | Weir Minerals Australia Ltd. | Lifter bar assembly for a crushing mill and method of installation |
EP2674218A1 (en) * | 2012-06-13 | 2013-12-18 | Sandvik Intellectual Property AB | Means for securing jaw plates in a jaw crusher |
EP2674219A1 (en) * | 2012-06-13 | 2013-12-18 | Sandvik Intellectual Property AB | Means for securing jaw plates in a jaw crusher |
WO2013186042A1 (en) * | 2012-06-13 | 2013-12-19 | Sandvik Intellectual Property Ab | Means for securing jaw plates in a jaw crusher |
WO2013186033A1 (en) * | 2012-06-13 | 2013-12-19 | Sandvik Intellectual Property Ab | Means for securing jaw plates in a jaw crusher |
RU191600U1 (en) * | 2019-06-03 | 2019-08-13 | федеральное государственное бюджетное образовательное учреждение высшего образования "Белгородский государственный технологический университет им. В.Г. Шухова" | TUBING BALL BALL MILL |
Also Published As
Publication number | Publication date |
---|---|
RU2003106406A (en) | 2004-08-10 |
PL358786A1 (en) | 2004-08-23 |
EP1181981A1 (en) | 2002-02-27 |
CZ2003398A3 (en) | 2003-09-17 |
AU2001289662A1 (en) | 2002-02-18 |
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