EP1432518B1 - Assemblage de plaques d'usure - Google Patents
Assemblage de plaques d'usure Download PDFInfo
- Publication number
- EP1432518B1 EP1432518B1 EP02767492A EP02767492A EP1432518B1 EP 1432518 B1 EP1432518 B1 EP 1432518B1 EP 02767492 A EP02767492 A EP 02767492A EP 02767492 A EP02767492 A EP 02767492A EP 1432518 B1 EP1432518 B1 EP 1432518B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- plates
- armour
- drum
- distinguished
- 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
Links
Images
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 shielding system for a rotary mill comprising a rotating cylindrical shell intended for rotate around its longitudinal axis and contain material to grind and a load of grinding machines, the shielding system being constituted individual armor plates arranged in attached juxtaposed rings to the inner wall of the ferrule, each armor plate comprising an inclined working face extending between a foot of plate and a head plate and an opposite convex facing face facing the surface inside the shell.
- Such a mill is described in EP0998353.
- This kind of Crusher is used in particular in cement works and in the mining industry.
- the grinding material is introduced on one side of the mill and, as and when of its progression to the exit, on the opposite side, it is crushed and crushed between the grinding machines.
- cladding or shielding mills have a base adapted to the radius of curvature of the ferrule and a profile varying according to the desired degree of lifting.
- Adaptation of the armor plate to the curvature of the crusher requires a similar radius of curvature for the laying face of the plate and the ferrule of the grinder to prevent breakage of the plate and local hammering of the ferrule.
- WO-A-8604267 discloses a crusher with a shielding system according to the preamble of claim 1.
- the desired lifting effect depends on several factors related to the crusher design and walking conditions thereof, requiring to choose a determined value of lift height of plates, which may vary between 100 and 160 mm depending on the case.
- the object of the present invention is to provide a new system shielding for a rotary mill of the kind described in the preamble which allows to equip grinders of different diameters with a plate metal shielding of standard size and with the possibility of modify the degree of lifting.
- the shielding system proposed by the invention is characterized in that it comprises soles intermediaries intended to be inserted between the armor plates individual and the ferrule of the mill, each sole having a face main whose curvature is adapted to the curvature of the laying face of the adjacent armor plate and an opposite face whose curvature is adapted to that of the ferrule.
- the system includes, minus two different types of midsoles that stand out by the radius of curvature of their main faces.
- At least one of these types has major faces that make between them an angle ⁇ less than 10 °.
- the armor plates can be bolted to the ferrule using fastening bolts having semi-spherical heads retained in corresponding semi-spherical housing of the armor plate.
- FIGS. 1a and 1b show two armor plates 1a and 1b well known. These plates 1a and 1b have a work surface inclined 2 which extends between a plate foot 5 of a height h and a plate head 3 with a height H, as well as a curved installation surface 4 applied to the inner surface of the not shown ferrule and turning, in the case of Figures 1a and 1b, in the direction of the needles of a watch.
- This laying surface 4 may optionally comprise as shown in the dashed figures, depressions for reduce the weight of the plates.
- the plates 1a and 1b are fixed on the shell using bolts not represented.
- the plates 1a and 1b comprise housing to receive the head of the fixing bolts.
- the plate 1a a work surface 2 that is smooth, while the work surface of the Plate 1b has longitudinal corrugations or other growths and hollow of various shapes to reduce the slippage of the load when rotating the mill.
- the laying surface 4 of the two plates must have a curvature which corresponds more or less to that of the ferrule, which leads to the disadvantages mentioned in the introduction.
- the invention proposes the use of intermediate soles such as shown in Figures 2a and 2b.
- FIG. 2a shows an example of a thin symmetrical sole 11 made of low alloyed steel and which presents a possibility of light deformation or made of ductile cast iron graphite type spheroidal.
- This sole 11 which has the same surface as that of a plate has two main curved faces 12 and 13, the face head 12 having a radius of curvature greater than that of the face 13.
- sole 11 has in its center a hole 16 for the passage of a bolt of fixation.
- FIG. 3 shows an example of use of insoles 11 for the fixing plates 10 of the kind of those of FIG. 1a on a ferrule 30 of a grinder.
- the curvature of the face 12 of the soles 11 more or less corresponds to the curvature of the face of the plate 10 while the curvature of the face 13 is adapted to the curvature of the 30.
- the sole will adapt, by deformation, to diameter and any irregularities of the ferrule 30 to ensure, as shown in Figure 3, a seat optimal for each armor plate 10. Without the presence of these soles, the plates 10, which have a laying surface with a radius of curvature greater than that of the shell, would have no support on the ferrule in the central region and would be quickly scrapped.
- the sole 11 of Figure 2 is symmetrical and only allows to grant the radii of curvature plate / ferrule without being able to modify the degree of lifting of the plate 10 which supports. This sole will be therefore used when the lifting of the plate 10 corresponds to the lifting desired for good grinding efficiency of the mill in question.
- the invention proposes a second type of sole which is illustrated in Figure 2b.
- This sole 14 also comprises two faces 12 and 15 with radii of curvature different to make the transition between the curvature of the plate 10 and that of of the ferrule 30.
- the two faces 12 and 15 are between them ⁇ angle included in 0.1 and 10 ° preferably between 1 ° and 3 ° ..
- Figures 4a and 4b illustrate two different ways of using of such a sole 14.
- the sole 14 raises the height of the foot 5 of the plate 10 thus decreasing the difference between the height h (see also Figure 1a) of the foot 5 of the plate 10 and the height H of the head 6 of the plate 10, which reduces the lifting effect of the grinding charge by the grinder.
- Figure 5 illustrates the attachment of armor plates and soles at the ferrule 30 of a grinder. This fixation is ensured by bolts 22 which pass through the plates 10, the soles 11 or 14 and the 30.
- the use of inclined soles will require the use of 22 bolts with semi-spherical heads 17 which are housed in a housing corresponding also semi-spherical 18 of the plate 10. Of this way, regardless of the angle that makes the base of the plate 10 with the ferrule 30, it is possible to correctly tighten the bolt 22 without creating flexions in the bolt rod 22.
- Bolted shields may have the disadvantage of leaks of material through the bolt holes.
- This washer has a chamfer 20 intended to leave a space in which can be housed an o-ring 21 elastomer that is compressed when tightening the bolt and seals the hole bolt.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Ceramic Products (AREA)
Description
- une plaque de blindage unique 10 pour tous les broyeurs ;
- une semelle du type 11 symétrique pour les broyeurs d'un diamètre de 2,4 à 3,3 mètres ;
- une semelle du type 14 avec un angle d'inclinaison α pour les broyeurs de 2,4 à 3,3 mètres ;
- une semelle du type 11 pour les broyeurs d'un diamètre de 3,4 mètres à 5,8 mètres et
- une semelle du type 14 pour les broyeurs d'un diamètre de 3,4 mètres à 5,8 mètres.
Claims (4)
- Système de blindage pour un broyeur rotatif comprenant une virole cylindrique rotative destinée à tourner autour de son axe longitudinal et à contenir de la matière à broyer et une charge d'engins broyants, le système de blindage étant constitué de plaques de blindage individuelles (10) arrangées en anneaux juxtaposés fixées à la paroi intérieure de la virole, chaque plaque de blindage (10) comprenant une face de travail inclinée s'étendant entre un pied de plaque (5) et une tête de plaque (6) et une face de pose bombée opposée tournée vers la surface intérieure de la virole, le système comportant des semelles intermédiaires (11, 14) destinées à être insérées entre les plaques de blindage individuelles (10) et la virole (30) du broyeur, chaque semelle (11, 14) ayant une face principale dont la courbure est adaptée à la courbure de la face de pose de la plaque de blindage adjacente (10) et caractérisée en ce que les semelles comportent une face principale opposée dont la courbure est adaptée à celle de la virole et en ce qu'il existe pour une plaque de blindage donnée au moins deux types différents de semelles intermédiaires (11, 14) qui se distinguent par le rayon de courbure de leurs faces principales, pour équiper des broyeurs de différents diamètres avec le même type de plaques de blindage, unique pour tous les broyeurs.
- Système de blindage selon la revendication 1, caractérisé en ce que les deux faces principales (12, 15) de chaque semelle (14) font entre-elles un angle α inférieur à 10°.
- Système selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que les plaques (10) sont boulonnées à la virole (30) à l'aide de boulons de fixation (22) traversant chaque plaque (10), chaque semelle (11, 14) et la virole (30).
- Système selon la revendication 3. caractérisé en ce que les boulons de fixation (22) ont des têtes semi-sphériques (17) retenues dans des logements semi-sphériques correspondant (18) de la plaque (10).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE200100642 | 2001-10-03 | ||
| BE2001/0642A BE1014412A3 (fr) | 2001-10-03 | 2001-10-03 | Assemblage de plaques d'usure. |
| PCT/EP2002/010525 WO2003031070A1 (fr) | 2001-10-03 | 2002-09-19 | Assemblage de plaques d'usure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1432518A1 EP1432518A1 (fr) | 2004-06-30 |
| EP1432518B1 true EP1432518B1 (fr) | 2005-06-15 |
Family
ID=3897112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02767492A Expired - Lifetime EP1432518B1 (fr) | 2001-10-03 | 2002-09-19 | Assemblage de plaques d'usure |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1432518B1 (fr) |
| CN (1) | CN1564712A (fr) |
| AT (1) | ATE297810T1 (fr) |
| BE (1) | BE1014412A3 (fr) |
| DE (1) | DE60204710T2 (fr) |
| ES (1) | ES2243761T3 (fr) |
| WO (1) | WO2003031070A1 (fr) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100417449C (zh) * | 2006-09-19 | 2008-09-10 | 西安建筑科技大学 | 用于球磨机的复合耐磨衬板的制造工艺 |
| CN101209431B (zh) * | 2006-12-29 | 2011-06-15 | 中国国际海运集装箱(集团)股份有限公司 | 球磨机筒体用衬板 |
| EA009145B1 (ru) * | 2007-03-27 | 2007-10-26 | Общество С Ограниченной Ответственностью "Златоустовский Литейный Завод - Метапласт" | Броневая плита для футеровки барабана трубной мельницы |
| EA200700787A1 (ru) * | 2007-03-27 | 2007-10-26 | Общество С Ограниченной Ответственностью "Златоустовский Литейный Завод - Метапласт" | Классифицирующая броневая плита для футеровки барабана трубной мельницы |
| CN102423725A (zh) * | 2011-11-14 | 2012-04-25 | 沈夕华 | 一种用于管磨机的桨形活化分级衬板 |
| CN107442221B (zh) * | 2017-08-17 | 2019-11-08 | 攀钢集团钒钛资源股份有限公司 | 用于钙化焙烧熟料研磨的棒磨机 |
| CN108722574A (zh) * | 2017-09-27 | 2018-11-02 | 北京环磨科技有限公司 | 一种易淬透自磨机和半自磨机衬板 |
| CN109225483B (zh) * | 2018-09-30 | 2023-12-22 | 中国地质科学院郑州矿产综合利用研究所 | 非金属矿制砂碎磨筛系及碎磨机 |
| CN111841777A (zh) * | 2020-08-24 | 2020-10-30 | 攀枝花贝氏体耐磨管道有限公司 | 一种组合式耐磨衬板及磨机内筒体 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE600659C (de) * | 1934-07-28 | Babcock & Wilcox Dampfkessel W | Rohrmuehle | |
| US2216784A (en) * | 1938-04-28 | 1940-10-08 | Pearson M Payne | Method of forming liner plates |
| DE1031616B (de) * | 1955-06-18 | 1958-06-04 | Pfeiffer Fa Christian | Panzerplatte fuer Rohrmuehlen |
| US4319719A (en) * | 1979-09-27 | 1982-03-16 | Minneapolis Electric Steel Castings Company | Shell liner assembly for ore grinding mills |
| AU607892B2 (en) * | 1985-01-25 | 1991-03-21 | Evans Products Company | Shell liner assembly |
| BE1011286A3 (fr) | 1997-07-17 | 1999-07-06 | Magotteaux Int | Broyeur rotatif. |
-
2001
- 2001-10-03 BE BE2001/0642A patent/BE1014412A3/fr not_active IP Right Cessation
-
2002
- 2002-09-19 WO PCT/EP2002/010525 patent/WO2003031070A1/fr not_active Ceased
- 2002-09-19 DE DE60204710T patent/DE60204710T2/de not_active Expired - Fee Related
- 2002-09-19 ES ES02767492T patent/ES2243761T3/es not_active Expired - Lifetime
- 2002-09-19 CN CN02819561.2A patent/CN1564712A/zh active Pending
- 2002-09-19 EP EP02767492A patent/EP1432518B1/fr not_active Expired - Lifetime
- 2002-09-19 AT AT02767492T patent/ATE297810T1/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE60204710D1 (de) | 2005-07-21 |
| WO2003031070A1 (fr) | 2003-04-17 |
| DE60204710T2 (de) | 2006-02-02 |
| BE1014412A3 (fr) | 2003-10-07 |
| EP1432518A1 (fr) | 2004-06-30 |
| ATE297810T1 (de) | 2005-07-15 |
| ES2243761T3 (es) | 2005-12-01 |
| WO2003031070B1 (fr) | 2003-11-20 |
| CN1564712A (zh) | 2005-01-12 |
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