EP0589774B1 - Broyeur à piste annulaire et rouleau et plaques d'usure pour de tels broyeurs - Google Patents

Broyeur à piste annulaire et rouleau et plaques d'usure pour de tels broyeurs Download PDF

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Publication number
EP0589774B1
EP0589774B1 EP93402299A EP93402299A EP0589774B1 EP 0589774 B1 EP0589774 B1 EP 0589774B1 EP 93402299 A EP93402299 A EP 93402299A EP 93402299 A EP93402299 A EP 93402299A EP 0589774 B1 EP0589774 B1 EP 0589774B1
Authority
EP
European Patent Office
Prior art keywords
mill
plates
track
faces
prismatic surface
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
EP93402299A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0589774A1 (fr
Inventor
Philippe Lagache
Bernard Boussekey
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.)
F C B SA
Fratelli BUZZI SpA
Original Assignee
F C B SA
Fratelli BUZZI SpA
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 F C B SA, Fratelli BUZZI SpA filed Critical F C B SA
Publication of EP0589774A1 publication Critical patent/EP0589774A1/fr
Application granted granted Critical
Publication of EP0589774B1 publication Critical patent/EP0589774B1/fr
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
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/003—Shape or construction of discs or rings
    • 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 shredders comprising an annular track on the inner surface of which roll one or more rollers which are pressed on the track by their weight or centrifugal force or by external means such as jacks or springs so as to ensure the grinding by crushing materials on the runway.
  • the invention relates to the shredders according to the preamble of claim 1 (see EP-A-0486371), and the use of a wear plate according to claim 10.
  • the object of the present invention is to eliminate this risk by ensuring a perfect range of the plates on the ring or the drum which supports them and by eliminating all means of fixing, such as screws or bolts, of the plates on their support.
  • the mill object of the present invention is characterized in that the part of the body of the mill which supports the plates has a prismatic inner surface, and in that the wear plates have an outer face or plane bearing face which rests on one face of said prismatic surface.
  • the prismatic surface can be machined on the body of the crusher or constituted by shims attached to it and having a cylindrical outer face, adapted to the cylindrical inner surface of the body of the crusher, and a flat inner face.
  • the director of the prismatic surface may be a regular polygon and each shielding plate will include a flat bearing surface whose width will be equal to that of the faces of the prismatic surface, and the front and rear faces located in two planes containing the axis of the runway and the edges of the prismatic surface.
  • the prismatic surface may include a series of steps regularly distributed over the periphery of the body of the mill and, between the steps, plane bearing faces for the wear plates, and these will have an increasing thickness of front to rear and front and rear faces located in planes containing the axis of the runway and the faces of the prismatic surface constituting the steps.
  • the front face of each plate will be perpendicular to its outer face or bearing face; and each plane bearing face of the prismatic surface will be perpendicular to the step forming face located immediately in front.
  • the plates will be held laterally, to prevent movement of the plates in a direction parallel to the axis of the track, by stop rings fixed to the body of the mill.
  • the clearances between the plates, necessary for mounting, can be filled with an epoxy resin.
  • the crusher of which FIG. 1 gives only a partial representation is of the type described in French patent n ° 90.14 004. It comprises a rotary body constituted by a short cylindrical shell 10, with horizontal axis, supporting, internally, a track of grinding 12 and a roller 16 held in a fixed position, which rolls on this track and is pressed thereon by springs or jacks. The direction of rotation of the track is indicated by an arrow in Figures 1 and 4.
  • the grinding track is made up of hard metal wear plates 14 placed side by side to form a cylindrical rolling surface with a horizontal axis.
  • Each plate includes a concave cylindrical inner face 18, a flat outer face 20, two lateral faces 22 and 24 perpendicular to the axis of the track and a front face 26 and a rear face 28 which are located in two planes containing the axis X - X of the track.
  • the front and rear of a plate are defined by reference to the direction of rotation of the track, the front being the part of the plate which passes first under the roller 16; this definition remains valid for mills in which the track is fixed and the roller is rotated around the axis of the mill.
  • Each plate rests by its outer face, which constitutes a bearing surface, on a shim 30 attached to the ferrule.
  • Each wedge has a flat inner surface 32 and a cylindrical outer surface 34, of the same radius as the inner surface of the ferrule 10.
  • the wedges are fixed to the ferrule, for example by welding. They form a prismatic surface whose directrix is a regular polygon and whose faces have a width equal to that of the bearing face of the plates 14 increased by the clearances necessary for mounting the plates, so that the planes of the front faces and rear of the plates contain, in practice, the edges 35 of the prismatic surface.
  • each block can support a single plate or the adjacent plates of several rows.
  • the plates are held laterally by two stop rings 36 welded to the ferrule (see FIG. 3). No other fixing means, such as bolts, is necessary, the plates being held in place by arching effect, the prismatic shape of the surface of the supports defined by the wedges moreover preventing the circumferential movement of all of the plates in relation to the holds.
  • the prismatic surface on which the wear plates 14 rest could be machined directly on the ferrule or on a ring attached to the ferrule.
  • the shims 30 ′ have a greater thickness at the front than at the rear, so that they form a prismatic surface with steps, the flat inner face 32 ′ of the shims , which serves as a support for the wear plates 14 ′, being perpendicular to their front face 40 constituting a step and situated in a plane containing the axis X - X of the track. Consequently, the wear plates 14 'are thicker at the rear than at the front and their outer face 20' is perpendicular to their front face 26 '.
  • the component parallel to the bearing face of a plate of the radial forces exerted by the roller 16 always has the same direction, from the front towards the rear, when the generator along which these forces are applied moves from the front edge to the rear edge of the plate due to the rotation of the track.
  • the armor plates therefore always abut against the notches formed by the front face of the shims, and alternative movements of the plates are avoided which would create shocks and could cause their deterioration.
  • the clearances between the plates, necessary for mounting, can be filled with an epoxy resin to prevent them from being filled in an anarchic manner by the ground material at the start of the mill.
  • the running surface of the track could be toric or frustoconical or formed from several cylindrical surfaces of different diameters, and it is obvious that the shape of the interior surface of the plates will depend on that of the surface of rolling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Crushing And Pulverization Processes (AREA)
EP93402299A 1992-09-24 1993-09-21 Broyeur à piste annulaire et rouleau et plaques d'usure pour de tels broyeurs Expired - Lifetime EP0589774B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9211416 1992-09-24
FR9211416A FR2695841B1 (fr) 1992-09-24 1992-09-24 Broyeur à piste annulaire et rouleau et plaques d'usure pour de tels broyeurs.
US08/215,359 US5393000A (en) 1992-09-24 1994-03-21 Crusher with an annular roller track

Publications (2)

Publication Number Publication Date
EP0589774A1 EP0589774A1 (fr) 1994-03-30
EP0589774B1 true EP0589774B1 (fr) 1997-01-22

Family

ID=26229744

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93402299A Expired - Lifetime EP0589774B1 (fr) 1992-09-24 1993-09-21 Broyeur à piste annulaire et rouleau et plaques d'usure pour de tels broyeurs

Country Status (10)

Country Link
US (1) US5393000A (da)
EP (1) EP0589774B1 (da)
AT (1) ATE148006T1 (da)
CZ (1) CZ285890B6 (da)
DE (1) DE69307641T2 (da)
DK (1) DK0589774T3 (da)
ES (1) ES2101975T3 (da)
FR (1) FR2695841B1 (da)
GR (1) GR3023237T3 (da)
SK (1) SK281419B6 (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107790240A (zh) * 2016-08-30 2018-03-13 北京环磨科技有限公司 一种筋面加硬型金属磁性衬板
AU2019327451A1 (en) * 2018-08-28 2021-04-29 Canada Mining Innovation Council Mono roller grinding mill
CN111644250A (zh) * 2020-07-09 2020-09-11 安徽开林新材料股份有限公司 一种防腐漆加工中使用的新型颜料固体研磨装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR376621A (fr) * 1907-04-12 1907-08-14 Max Franz Abbe Perfectionnements aux pierres de revetement pour moulins ou broyeurs à boulets
US2210357A (en) * 1936-02-27 1940-08-06 Beament Thomas Geoffrey Composite wear-resisting body
DE833892C (de) * 1947-11-18 1952-03-13 Fischer Ag Georg Panzerplatten-Auskleidung fuer Rohrmuehlen
US3065920A (en) * 1959-01-22 1962-11-27 Bolton John W & Sons Inc Working surfaces for refining engines
GB928928A (en) * 1961-04-13 1963-06-19 Mond Nickel Co Ltd Improvements relating to liners for grinding mills
AT347211B (de) * 1977-05-05 1978-12-11 Waagner Biro Ag Rohrmuehle, insbesondere kugelmuehle
US4183726A (en) * 1978-04-13 1980-01-15 Seebald John W Pyro-processing rotary kiln mixing rod
DE3921419A1 (de) * 1989-06-29 1991-01-10 Loesche Gmbh Mahlflaeche von waelzmuehlen
JPH0638924B2 (ja) * 1990-09-28 1994-05-25 株式会社大紀アルミニウム工業所 破砕装置
ATE138832T1 (de) * 1990-11-12 1996-06-15 Fcb Mühle zum feinmahlen von materialien

Also Published As

Publication number Publication date
DE69307641D1 (de) 1997-03-06
CZ67494A3 (en) 1996-04-17
US5393000A (en) 1995-02-28
CZ285890B6 (cs) 1999-11-17
GR3023237T3 (en) 1997-07-30
FR2695841B1 (fr) 1994-11-25
ATE148006T1 (de) 1997-02-15
SK281419B6 (sk) 2001-03-12
FR2695841A1 (fr) 1994-03-25
ES2101975T3 (es) 1997-07-16
DE69307641T2 (de) 1997-06-12
DK0589774T3 (da) 1997-07-21
EP0589774A1 (fr) 1994-03-30
SK33194A3 (en) 1994-11-09

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