EP1432518B1 - Verschleissplattenverband - Google Patents

Verschleissplattenverband Download PDF

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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
Application number
EP02767492A
Other languages
English (en)
French (fr)
Other versions
EP1432518A1 (de
Inventor
René STEILS
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
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 Magotteaux International SA filed Critical Magotteaux International SA
Publication of EP1432518A1 publication Critical patent/EP1432518A1/de
Application granted granted Critical
Publication of EP1432518B1 publication Critical patent/EP1432518B1/de
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
    • B02C17/18—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)
  • Absorbent Articles And Supports Therefor (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Ceramic Products (AREA)

Claims (4)

  1. Panzerungssystem für eine Trommelmühle mit einer zylinderförmigen rotierenden Trommel, die sich um ihre Längsachse dreht und das Mahlgut und die Mahlkörper enthält; das Panzerungssystem besteht aus einzelnen Panzerplatten (10), die in nebeneinander liegenden Ringen angeordnet sind und an der Innenwand der Trommel befestigt sind, jede Panzerplatte (10) hat eine schräge Arbeitsseite, die sich vom unteren Teil der Platte (5) bis zum oberen Teil der Platte (6) erstreckt, sowie eine gewölbte Unterseite, die zur Innenseite der Trommel zeigt, das System ist mit Zwischenplatten (11, 14) ausgestattet, die zwischen den einzelnen Panzerplatten (10) und der Trommel (30) angebracht werden, jede Zwischenplatte (11, 14) hat eine Hauptseite, deren Wölbung an die Wölbung der Unterseite der anliegenden Panzerplatte (10) angepasst ist, und dadurch gekennzeichnet, dass die Zwischenplatten eine gegenüberliegende Hauptseite mit einer Wölbung enthalten, die an die Wölbung der Trommel angepasst ist, und für jede Verkleidungsplatte gibt es mindestens zwei verschiedene Arten von Zwischenplatten (11, 14), die sich durch den Krümmungsradius ihrer Hauptseiten unterscheiden, um Mahlwerke mit unterschiedlichen Durchmessern mit einer für alle Mahlwerke gleichen Art von Panzerplatten auszustatten.
  2. Panzerungssystem gemäß Anspruch 1, dadurch gekennzeichnet, dass die beiden Hauptseiten (12, 15) jeder Zwischenplatte (14) in einem Winkel α,der kleiner als 10° ist, zueinander stehen.
  3. System gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Platten (10) an der Trommel (30) mit Hilfe von Befestigungsbolzen (22), die durch die Platte (10), die Zwischenplatte (11, 14) und die Trommel gesteckt werden, befestigt sind.
  4. System gemäß Anspruch 3, dadurch gekennzeichnet, dass die Befestigungsbolzen (22) Halbrundköpfe (17) haben, die in entsprechenden halbrunden Nuten (18) der Platte (10) gehalten werden.
EP02767492A 2001-10-03 2002-09-19 Verschleissplattenverband Expired - Lifetime EP1432518B1 (de)

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 (de) 2004-06-30
EP1432518B1 true EP1432518B1 (de) 2005-06-15

Family

ID=3897112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02767492A Expired - Lifetime EP1432518B1 (de) 2001-10-03 2002-09-19 Verschleissplattenverband

Country Status (7)

Country Link
EP (1) EP1432518B1 (de)
CN (1) CN1564712A (de)
AT (1) ATE297810T1 (de)
BE (1) BE1014412A3 (de)
DE (1) DE60204710T2 (de)
ES (1) ES2243761T3 (de)
WO (1) WO2003031070A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
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
EA200700787A1 (ru) * 2007-03-27 2007-10-26 Общество С Ограниченной Ответственностью "Златоустовский Литейный Завод - Метапласт" Классифицирующая броневая плита для футеровки барабана трубной мельницы
EA200700786A1 (ru) * 2007-03-27 2007-10-26 Общество С Ограниченной Ответственностью "Златоустовский Литейный Завод-Метапласт" 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)

* Cited by examiner, † Cited by third party
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
FI863859L (fi) * 1985-01-25 1986-09-24 Evans Prod Co Cylinderfoder foer mantel.
BE1011286A3 (fr) 1997-07-17 1999-07-06 Magotteaux Int Broyeur rotatif.

Also Published As

Publication number Publication date
CN1564712A (zh) 2005-01-12
EP1432518A1 (de) 2004-06-30
ES2243761T3 (es) 2005-12-01
DE60204710D1 (de) 2005-07-21
BE1014412A3 (fr) 2003-10-07
ATE297810T1 (de) 2005-07-15
DE60204710T2 (de) 2006-02-02
WO2003031070A1 (fr) 2003-04-17
WO2003031070B1 (fr) 2003-11-20

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