EP1253979A1 - Pour concasseur de mineraux rotatif - Google Patents

Pour concasseur de mineraux rotatif

Info

Publication number
EP1253979A1
EP1253979A1 EP00975023A EP00975023A EP1253979A1 EP 1253979 A1 EP1253979 A1 EP 1253979A1 EP 00975023 A EP00975023 A EP 00975023A EP 00975023 A EP00975023 A EP 00975023A EP 1253979 A1 EP1253979 A1 EP 1253979A1
Authority
EP
European Patent Office
Prior art keywords
component
rotor
wear resistant
resistant surface
distributor
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.)
Withdrawn
Application number
EP00975023A
Other languages
German (de)
English (en)
Inventor
Neville Hugh Kennewell
Phillip Counsell
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.)
Metso Minerals New Zealand Ltd
Original Assignee
Metso Minerals New Zealand Ltd
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 Metso Minerals New Zealand Ltd filed Critical Metso Minerals New Zealand Ltd
Publication of EP1253979A1 publication Critical patent/EP1253979A1/fr
Withdrawn legal-status Critical Current

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
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/0012—Devices for disintegrating materials by collision of these materials against a breaking surface or breaking body and/or by friction between the material particles (also for grain)
    • B02C19/0018—Devices for disintegrating materials by collision of these materials against a breaking surface or breaking body and/or by friction between the material particles (also for grain) using a rotor accelerating the materials centrifugally against a circumferential breaking surface
    • B02C19/0031—Devices for disintegrating materials by collision of these materials against a breaking surface or breaking body and/or by friction between the material particles (also for grain) using a rotor accelerating the materials centrifugally against a circumferential breaking surface by means of an open top rotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
    • B02C13/1807—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate
    • B02C13/1835—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate by means of beater or impeller elements fixed in between an upper and lower rotor disc
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
    • B02C13/1807—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate
    • B02C2013/1885—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate of dead bed type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/286—Feeding or discharge
    • B02C2013/28618—Feeding means
    • B02C2013/28681—Feed distributor plate for vertical mill

Definitions

  • the present invention relates to components and assemblies incorporated in or to be incorporated in a mineral breaker, such as for example, that typified by the
  • the present invention also relates to methods of fabrication of components and the resulting assemblies suitable for such machines or as replacement parts for such machines.
  • a rotor receives under gravity a substantially axial flow of mineral pieces to be further diminished in size. These pieces are thrown radially from the rotor after transiting a bed of rotor retained mineral pieces. Such thrown pieces impinge on a surrounding bed of earlier thrown mineral pieces thereby, by mineral piece to mineral piece interactions, providing the diminution of particle size. The particles of reduced size eventually fall from the machine.
  • a feature of the device is the wish to minimise wear. It is for this reason, where possible, as many interactions as possible are between mineral pieces with as few as possible being on non-sacrificial readily replaceable surfaces forming part of the machine itself.
  • BARMACTM type machine such as disclosed in PCT NZ98/00076
  • a distributor plate designated as 'A' in the aforementioned Figures 1A and IB.
  • a distributor plate Whilst such a distributor plate may be flat it may also be conical, dome-like or of some other appropriate three dimensional surface shape.
  • Such a distributor plate is difficult to manufacture for larger sizes where there has been used a steel or the like low cost substrate to which is adhered or otherwise fixed a shaped piece or multiple pieces of an appropriate hard yet sacrificial material, e.g. tungsten carbide.
  • the present invention is directed to components of a distributor plate and/or the assemblies thus fabricated.
  • the present invention consists in a distributor assembly of the rotor of a rotary mineral breaker, said rotor being of a kind adapted to receive under gravity substantially axially of the rotor mineral pieces to be broken and at least initiate the outward flow of such mineral pieces, said distributor assembly defining, with a first component, a wear resistant surface at least adjacent and about the rotor axis to receive in use at least some of said mineral pieces under gravity, and, with a second component, a wear resistant surface peripherally about at least said wear resistant surface of said first component, wherein said first component defines a wear resistant surface that at least in part is steeper with respect to the horizontal than the wear resistant surface of said second component.
  • said wear resistant surface is of a material affixed to and/or embedded in a substrate of that same component.
  • said wear resistant surface is defined by an appropriate carbide.
  • said second component defines a wear resistant surface greater in area when viewed in horizontal plan than the corresponding area of the wear resistant surface of said first component when also viewed in horizontal plan.
  • At least part of said second component underlies and is captured in use to said rotor by said first component.
  • fixing means locates said first component relative to the rotor and in use such location of the first component locates said second component.
  • said fixing means of said first component relative to the rotor is a rotor axis aligned bolt that engages into or through the rotor base.
  • said first component at least in part overlies part of said second component and at least in part is positioned within said second component so as to be capable of locating said second component between said first component and the rotor base so as to present a wear resistant surface of said second component about a wear resistant surface of said first component.
  • said second component is capable of being rotated about the rotor axis without removal of said first component to thereby present different zones of the wear resistant surface of said second component as zones of preferential wear in use.
  • said fixing means is a bolt at the rotor axis engaged into or through the rotor base and the head of said bolt is in turn protected by a cap substantially centrally positioned with respect to said first component.
  • said cap is provided with a wear resistant surface and is at least in part received within a recess centrally of said first component above the head of said bolt.
  • at least one further component itself defining a wear resistant surface to be positioned more peripherally than the wear resistant surface of said second component, at least one of said first or second components directly or indirectly providing a capturing or location effect with respect to the rotor of the additional component or components.
  • the wear resistant surface of said second component is of substantially a simple horizontal annulus or a shallow rise fhistoconical variant of such an annulus.
  • said first component is substantially of conical (which includes fhistoconical), dome or bell shape in nature.
  • said wear resistant surface of said first component is symmetrical about the axis of the rotor.
  • the invention is a first component for a distributor assembly as previously defined.
  • the invention is a second component for a distributor assembly as previously defined.
  • the present invention consists in or for a rotary mineral breaker, a multi-tiered distributor plate being a composite of at least a first component in the rotor or capable of being positioned in the rotor so as to be surrounded at least in part by a second component, and a said second component, the arrangement being such that in use said first component assists in locating a mineral contacting part of said second component about the rotor axis.
  • said second component defines an annular or the like region about a central region, the central region being defined at least in part by said first component.
  • said first and second components is fabricated so as to be provided with a wear resistant surface.
  • said first component at least in part overlies said second component.
  • the apparatus in rotor of a rotary mineral breaker provides or will provide an assembly of the present invention as previously defined.
  • the present invention consists in a distributor plate for a rotary mineral breaker comprising or including a first component capable of being positioned at least in part over and at least in part within a second component, and a said second component, the two components being capable in a rotor of defining a compound mineral distributing surface contour over at least part of the base of the rotor.
  • said first component is capable of being fixed to the rotor at the rotor axis.
  • each such component has been formed of a substrate material carrying a wear resistant material such that, in use, such wear resistant material defines said mineral distributing surface contour.
  • the rotor of a rotary mineral breaker provides or will provide an assembly of the present invention as previously defined.
  • each of said first and second components has at least part of the surface thereof to forming or to form part of said compound mineral distributing surface contour defined by an appropriate sacrificial material.
  • said appropriate sacrificial material is a carbide.
  • the present invention consists of a method of providing a compound mineral distributing surface contour in the base of the rotor of a rotary mineral breaker, said method comprising or including assembling by pre-assembly or sequential positioning within said rotor a first and second component of a kind as previously defined (if sequentially positioned, said second component being placed first), and thereafter attaching said first component to the rotor so as to capture both said second component and said first component to the rotor base.
  • the present invention consists in or for a rotary mineral breaker, a composite distributor plate being an assembly of two or more members, each of which members has a carbide wear resistant surface.
  • the base of the rotor of such apparatus by one of said members only, at least one other such member being rotatably captured to the rotor by that member fixed to said rotor base.
  • the invention is any mineral deflector or distribution component of or for a rotor of a rotary mineral breaker, said component being substantially of a kind herein described with reference to any one or more of the accompanying drawings and which forms or is to form part only of a mineral distributing surface of such a rotor over or as part of the base thereof.
  • FIG. 1A is a perspective cutaway diagram of a BARMACTM type machine as previously defined by way of reference, the letter “A” indicating the distributor plate
  • Figure IB is an enlarged view of the rotor in a machine of the kind shown in Figure 1 A showing the disposition of the distributor plate "A” with respect to a retained bed of mineral pieces supported by the rotor between a wear plate at the exit port from which the migrating mineral pieces are thrown as well as a shaping plate at the back of the bed,
  • Figure 2 shows an assembly which substitutes for distributor plate "A" in such a machine as depicted in Figures 1 A and IB
  • Figure 3 A shows the first member of an assembly as shown in Figure 2, the first member having a substantially annular contoured surface of a wear resistant material such as tungsten carbide over the substrate steel or other support,
  • Figure 3B shows the second member which is substantially frustoconcial or dome shaped and has a corresponding wear resistance surface (eg; of tungsten carbide) and which second member is capable of being centrally placed over the member shown in Figure 3 A and held together by appropriate means as shown in Figures 2, 4 and 5,
  • a wear resistance surface eg; of tungsten carbide
  • Figure 4 is a perspective view from above of the arrangement as shown in Figure
  • Figure 5 is a transparent side elevation showing the assembly of the Figures 2 and 4,
  • Figure 6 is a plan view of a preferred distributor assembly of a rotor showing an annulus of the second component exposed beyond a partial overlaid zone of the fhistoconical first member, such first member being held in place to the rotor base (not shown) by a bolt the head of which is capped by the receiving of an appropriate capping member within a central recess of said first component,
  • Figure 7 is a section of the assembly of Figure 6, and
  • Figure 8 is an exploded view of the assembly of Figures 6 and 7 showing how if desired notches in the substrate of the second member can be used to relocate sacrificial areas being typical areas of high wear corresponding to the number of exit ports on the rotor (in the case of Figures 6 to 8 - three exit ports), such incremental rotation regularly ensuring a maximum use of the sacrificial impact/wear resistant carbide surfacing of said second component.
  • the present invention relates to multi-tiered distributor plates (eg; two, three or more tiers) but hereafter the description will refer primarily to two tiers. Three tiers are preferred however for rotors with a tip radius in excess of 450 mm [I7 2"] (e.g; for 1.2 m rotor).
  • the present invention recognises the difficulty in holding about a central region any large expanse of tungsten carbide or other carbide in place due to the centrifugal and impact forces.
  • the centre unit ie; the second member
  • the centre unit provides a positive location of at least part of the annulus of tungsten carbide or the like of the outer ring (ie; the first member). This assists in the resistance of the centrifugal forces and such mechanical hold-down renders less important the bond (if any) between the substrate of such second member and its tungsten carbide or the like protective surface layer.
  • the present invention also recognises that with the mechanical separation of the parts being possible maintenance is rendered more easy.
  • the first component is of a part hitherto available in more or less the same form as herein described from applicant for lesser diameter rotary mineral breakers.
  • the second member 1 (see Figure 3 A) is provided as a substrate of steel or steel alloy 2 and an annulus 3 of tungsten carbide which has been adhesively affixed to the substrate 2.
  • component 1 includes a central hole 4 surrounded by a recess 5 which will accommodate a head of a fixing bolt 6. It is that head of the bolt 6 which is provided with a female thread into which a bolt 7 for the second member 8 is to engage to locate the first component 8 over and to the second component 1.
  • a single through bolt could instead be used.
  • the member 8 itself is provided with a substrate 9 (preferably of a steel) and is provided with one or more pieces (preferably one) of tungsten carbide 10 which in a manner similar to that depicted in Figure 6 and, as previously described in relation to the second component, locates the tungsten carbide to the substrate 9.
  • the member 8 however preferably has the configuration shown in Figures 4 and 5.
  • an effective distributor plate of a composite type form from two main members provides a sufficient degree of contouring centrally notwithstanding the flatness of the tungsten carbide annulus 3 of the second member 1. This makes much easier the provision of large diameter distributor plates since only the relatively small central part thereof has any contouring of significance that makes fabrication more difficult.
  • steel bolt/set screw 7 is in a low impact density area of the distributor and need not be, but can be, protected.
  • an appropriate adhesive eg; ESP110 PermabondTM ofNational Starch and Chemical Company
  • the substrate metal which preferably is an appropriate steel, for example, mild steel.
  • the carbide can be in mould moulded into a substrate metal.
  • the most preferred form of the present invention (but for ease of explanation being described in respect of a three exit mineral breaker of the aforementioned BARMACTM type) has a first component 11, a second component 17 and a capping member 12 which overlies a fixing bolt 16 adapted to associate the first member 11 into or through the base of the rotor.
  • each of the components 11, 12 and 17 is fabricated to include respectively wear resistant surfaces of adhered carbide 18, 13 and 19 respectively.
  • the substrate that supports such wear resistance surfacings is of an appropriate steel.
  • the preferential zones of wear appear on the flat annulus 19 at zones "W".
  • Notches 20 in the perimeter of the substrate of the second member 12 enables different regions "W” to be presented, each area “W” being dictated by the relative positioning of the rotor exit relative to the second member wear resistant surface 19.
  • Such periodic or regular turning of the free to rotate second component 19 relative to the still fixed first component 11 is preferably despite fixing bolt 16 being unloosened and still with its head 15 protected by the capping member 12 is assured.
  • O rings 22 can be utilised to locate the composite capping member 12 within the central recess of the first component 11 above the bolt head 15 with part of the wear resistant attachment to the capping member substrate 14 overlaying the top edge of the wear resistant layer 18 of the member 11.
  • the wear resistant layer 18 in turn laps over the inner extremities of the wear resistant surface 19.
  • the present invention therefore envisages a simple fixing operation for component 11 utilising a bolt capable in turn of being protected by a push-in cap.
  • the first member 11 holds captive and locates the second member 17 and its peripheral wear resistant surface 19 but still allowing its movement in order to maximise its life.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

L'invention concerne un concasseur de minéraux rotatif du type présentant un ensemble de distributeur d'un rotor capable de tourner autour d'un axe pratiquement vertical pour recevoir axialement des pièces en minéraux sous l'effet de l'apesanteur. Le rotor comprend des premier et second composants. Le premier composant, du moins en partie, est plus abrupte que la surface horizontale du second composant, ce qui débouche sur un contour global de surface de distribution de minéraux autour du rotor.
EP00975023A 1999-10-26 2000-10-24 Pour concasseur de mineraux rotatif Withdrawn EP1253979A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NZ50068099 1999-10-26
NZ50068099 1999-10-26
PCT/NZ2000/000208 WO2001030501A1 (fr) 1999-10-26 2000-10-24 Pour concasseur de mineraux rotatif

Publications (1)

Publication Number Publication Date
EP1253979A1 true EP1253979A1 (fr) 2002-11-06

Family

ID=19927596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00975023A Withdrawn EP1253979A1 (fr) 1999-10-26 2000-10-24 Pour concasseur de mineraux rotatif

Country Status (6)

Country Link
EP (1) EP1253979A1 (fr)
AU (1) AU1313101A (fr)
BR (1) BR0015104A (fr)
CA (1) CA2388507A1 (fr)
WO (1) WO2001030501A1 (fr)
ZA (1) ZA200203056B (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0202533D0 (sv) 2002-08-28 2002-08-28 Sandvik Ab A wear part for a crusher
US7823821B2 (en) 2002-10-24 2010-11-02 Crushing & Mining Equipment Pty Ltd Distributor plate
SE531538C2 (sv) * 2007-05-30 2009-05-12 Sandvik Intellectual Property Fördelningsplatta för VSI-kross och förfarande för byte av sådan platta
SE534024C2 (sv) * 2009-08-26 2011-04-05 Sandvik Intellectual Property För en slagkross med vertikal axel avsedd mekanism för låsning av en fördelningsplatta
EP2873462B1 (fr) 2013-11-19 2020-04-29 Sandvik Intellectual Property AB Plaque de distributeur de broyeur VSI résistant à l'usure
CN106660052B (zh) 2015-06-26 2020-05-19 山特维克知识产权股份有限公司 用于vsi破碎机转子的分布板
WO2016206753A1 (fr) 2015-06-26 2016-12-29 Sandvik Intellectual Property Ab Partie d'usure résistant à l'abrasion pour rotor de broyeur à impact à arbre vertical (vsi)
KR101580988B1 (ko) * 2015-07-02 2015-12-30 허홍순 분배 부재 및 이를 포함하는 수직축 임팩트 크러셔

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4065063A (en) * 1976-07-06 1977-12-27 El-Jay, Inc. Impact crusher
US4577806A (en) * 1983-11-18 1986-03-25 Acrowood Corporation Impeller assembly for an impact crusher
US5178339A (en) * 1989-03-03 1993-01-12 Atlanta Import Export Corporation Rotor disc for a refiner and method of formation thereof
NZ250027A (en) * 1993-10-22 1996-10-28 Barmac Ass Ltd Mineral breaker; scalloped wear tip
NZ328062A (en) * 1997-06-11 1999-10-28 Svedala Barmac Ltd Rotary mineral breakers having a contoured bed and weir

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0130501A1 *

Also Published As

Publication number Publication date
ZA200203056B (en) 2003-07-17
AU1313101A (en) 2001-05-08
BR0015104A (pt) 2002-07-16
WO2001030501A1 (fr) 2001-05-03
CA2388507A1 (fr) 2001-05-03

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