EP3771492B1 - Segment de revêtement pour broyeur giratoire ou à cône - Google Patents

Segment de revêtement pour broyeur giratoire ou à cône Download PDF

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Publication number
EP3771492B1
EP3771492B1 EP19188801.5A EP19188801A EP3771492B1 EP 3771492 B1 EP3771492 B1 EP 3771492B1 EP 19188801 A EP19188801 A EP 19188801A EP 3771492 B1 EP3771492 B1 EP 3771492B1
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EP
European Patent Office
Prior art keywords
liner
frame
liner segment
crusher
ejector unit
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.)
Active
Application number
EP19188801.5A
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German (de)
English (en)
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EP3771492A1 (fr
Inventor
Ian VAN ZYL
Carl NICHOLLS
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 Finland Oy
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Metso Finland Oy
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 Finland Oy filed Critical Metso Finland Oy
Priority to EP19188801.5A priority Critical patent/EP3771492B1/fr
Priority to AU2020322154A priority patent/AU2020322154B2/en
Priority to CN202021538017.XU priority patent/CN213996009U/zh
Priority to PCT/EP2020/071393 priority patent/WO2021018959A1/fr
Priority to CN202010744918.2A priority patent/CN112295652B/zh
Publication of EP3771492A1 publication Critical patent/EP3771492A1/fr
Priority to CL2022000227A priority patent/CL2022000227A1/es
Application granted granted Critical
Publication of EP3771492B1 publication Critical patent/EP3771492B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2/00—Crushing or disintegrating by gyratory or cone crushers
    • B02C2/005—Lining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2/00—Crushing or disintegrating by gyratory or cone crushers
    • B02C2/02—Crushing or disintegrating by gyratory or cone crushers eccentrically moved
    • B02C2/04—Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group

Definitions

  • the present invention relates to a liner segment for a gyratory or cone crusher, to a gyratory or cone crusher comprising such liner segments, to a method of dismounting at least one liner segment from a gyratory or cone crusher, and to the use of an expandable ejector unit such as a lifting bag to dismount a liner segment from a gyratory or cone crusher.
  • Gyratory crushers and cone crushers are two types of rock crushing systems which generally break apart rock, stone or other material in a crushing gap between a stationary element and a moving element.
  • a gyratory or cone crusher is comprised of a head assembly including a crusher head that gyrates about a vertical axis within a stationary bowl attached to a main frame of the rock crusher.
  • the crusher head is assembled surrounding an eccentric that rotates about a shaft to impart the gyratory motion to the crusher head which crushes rock, stone or other material as the material travels through a crushing gap between the crusher head and the bowl. The crushed material exits the crusher through the bottom of the crushing gap.
  • the eccentric can be driven by a variety of power drives, such as an attached gear, driven by a pinion and countershaft assembly, and a number of mechanical power sources, such as electrical motors or combustion engines.
  • Gyratory crushers are often used as primary crushers, i.e. heavy-duty machines designed to process large material sizes. Secondary and tertiary crushers are intended to process relatively smaller feed materials. Cone crushers are often utilised as downstream crushers.
  • Gyratory and cone crushers utilize wear parts to protect the machine from damage and perform the actual crushing of the material.
  • the two types of wear part are the mantle and a set of several concave liners.
  • the mantle is fixed to the main shaft and the concave liners (or simply "concaves") are fixed to the frame or topshell of the crusher.
  • the concaves are arranged in several rows sitting on top of each other.
  • Wear parts may be made from chilled cast iron or from steel alloy, such as manganese steel, depending on the character of the material to be crushed and the particular class of service for which the machine is intended.
  • Manganese steel combines extreme toughness with high wear resistance and has therefore developed into the universal choice for crushing hard, tough rock, even regardless of the class of service or the type of crusher.
  • a common material is 12-14% manganese steel, also known as Hadfield steel. Different alloys have been used for liner segments in upper, middle and bottom parts of the crushing chamber.
  • both the mantle and the concaves wear and distort due to the significant pressures and impact loading forces they transmit.
  • backing compounds e.g. an epoxy backing
  • the crushing forces must be transferred to the liners from the structural crusher parts which they protect, and for that, intimate contact is needed between the back of the liners and the surface of the topshell or frame.
  • the aforementioned wear parts are changed regularly, i.e. in intervals of 12, 18 or 24 months.
  • the replacement is a relatively fast process for the mantle, which is usually replaced by swapping for a spare main shaft assembly.
  • the replacement of the concave liners is cumbersome.
  • one unit per row - the so-called 'keystone' - is removed first so as to release any hoop stresses stored in the respective row of concaves. This is done by using a thermal lance to cut a valley in the concave which therefore allows it to be chiselled off with a rock breaker or other such hammer system.
  • the 'keystone' is removed, the remaining concaves in the row are removed one by one along the circumferential direction.
  • the concaves are removed one by one using a rock breaker, i.e. a hydraulic or pneumatic hammer which is driven behind the concaves at the top leading edge to break the epoxy backing.
  • WO 01/28688 A1 relates to the replacement of wear liners for a gyratory crusher and suggest using a fixing and locating means between the housing of the crusher and a head liner.
  • WO 06/047681 A2 describes a bowl liner retaining device that allows for an easy and quick replacement of worn or unusable bowl liners on gyratory cone crushers.
  • US-A1-2001/0045476 relates to concaves for gyratory crushers formed in a trapezoidal or triangular shape to achieve essentially three-point contact with an external shell of the gyratory crusher.
  • concaves for gyratory crushers are provided with adjustable pads whose position with respect to the back surface of the concave can be changed.
  • concaves for gyratory crushers are provided with alignment pads that are inserted between the back surface of the concave and the external shell of the gyratory crusher.
  • concaves for gyratory crushers are provided with removable fastening member such as bolts that engage the back surface of the concave to mount the concave to the external shell of the gyratory crusher.
  • a gyratory crusher which comprises a crusher shell lined interiorly with a plurality of rows of concaves, each of said concaves comprising a heavy plate having upper and lower transverse ribs integral with said plate projecting from the rear surface thereof, the upper transverse rib being disposed below the upper edge of the plate, and the lower transverse rib being disposed adjacent the lower edge of the plate and being formed with an integral downwardly extending projection, and a backing layer of low melting point metal cast between the crusher shell and the rear surfaces of the concaves, the projection which extends downwardly from the lower rib engaging behind and supporting the adjoining plate in the row of concaves next below where said adjoining plate extends above its upper transverse rib, whereby upon removal of any one of the concaves from the crusher shell the rear surface above the upper rib of the adjoining concave in the row next below is exposed and provides a surface against which a prying force may be exerted to remove said adjoining concave.
  • a concave removal press sold by Tri Star Design. Said press attaches to the outside of the frame of the gyratory crusher and has a push rod extending into the crusher through a hole drilled into the frame in the area of the concave to be removed.
  • the push rod is actuated by a hydraulic cylinder to push against the outer surface of the worn concave, thereby loosening the concave from the frame.
  • an object underlying the invention is to facilitate the removal of worn liner segments from a gyratory or cone crusher.
  • the present invention provides a liner segment for a gyratory or cone crusher as recited in claim 1.
  • the liner segment is provided with an expandable ejector unit to be arranged between the outer surface of the liner segment and the opposite inner surface of the frame.
  • the ejector unit has a first part for abutting or engaging with the outer surface of the liner segment and a second part for abutting or engaging with the inner surface of the frame and is operable to increase a spacing between the first and second parts to thereby increase the spacing between the outer surface of the liner segment and the inner surface of the frame.
  • the ejector unit is mounted in its undeployed state between the rear or outer surface of the concave and the opposite, inner surface of the frame or topshell. In other words, the ejector unit is pre-installed between the rear surface of the concave and the opposite surface of the frame or topshell. If time has come for the concave to be removed, the ejector unit is operated to be expanded, prising the concave away from its support and breaking the epoxy backing.
  • the invention therefore removes the need for use of a hydraulic / pneumatic hammer to assist with the removal of the worn concave segments from a gyratory crusher and dispenses with the necessity to have workers operate immediately in the area of the concaves. This is a significant safety improvement over the existing methodology.
  • the invention will also result in significant reduction in downtime during concave re-metal maintenance.
  • the invention will thereby result in an overall improvement in shutdown efficiency and effectiveness for all concave re-metal works.
  • the ejector unit may be expandable pneumatically or hydraulically. Also conceivable in principle are mechanically operable ejector units though, such as a high-powered spring released by remote control, or a servo-actuated lever arm.
  • the ejector unit may be operable to increase a volume of the ejector unit.
  • the expandable ejector unit may include a lifting bag.
  • a lifting bag is capable of lifting loads of several tons, wherein a lifting bag with a capacity of e.g. six tons could be used for the purposes of the invention.
  • the lifting bag is usually inflated with compressed air and in some cases with water or grout.
  • lifting bags In comparison with other types of jacking equipment, lifting bags have major advantages such as the very small insertion height and fast operation. They are also light-weight and practically maintenance-free.
  • the lifting bag to be used according to the invention may be made from one or several layers per side. Suitable materials for the layer(s) include woven steel and Kevlar with neoprene. The surfaces of the lifting bags may be structured to provide an anti-slip effect.
  • Suitable high-pressure inflatable lifting bags are available on the market, e.g. from MatJack Inc., for lifting, moving, spreading and fixing applications.
  • the liner segment may further comprise means for operating the ejector unit, e.g. including a hydraulic or pneumatic line or hose extending to each ejector unit in the crusher.
  • means for operating the ejector unit e.g. including a hydraulic or pneumatic line or hose extending to each ejector unit in the crusher.
  • the liner segments may be configured to be arranged in at least one tier or row along the inner circumference of the frame of the crusher.
  • the ejector unit may be disposed in the area of a top edge of the liner segment. Compared to the case in which the ejector unit would be arranged in a central area of the liner segment, the removal of the liner segment is facilitated thereby: When activated, the ejector unit acts upon the upper portion of the liner segment to "peel" the liner segment away from the underlying support or frame.
  • the liner segment may be a concave liner as it is typically the case in gyratory or cone crushers.
  • a cavity or recess may be included in the outer surface of the liner segment to accommodate the expandable ejector unit.
  • the recess acts as an ejector unit engagement portion.
  • the ejector unit could be installed between the rear or outer surface of the liner segment and the opposite surface of the frame without such a recess being formed in the back of the segment.
  • the invention also provides a gyratory or cone crusher as recited in claim 12, wherein a mantle and a bowl define a crushing gap between them, and wherein the bowl is constituted by a plurality of liner segments, with outer surfaces of the liner segments facing an inner surface of the frame. At least one of the liner segments is provided with an expandable ejector unit arranged between the outer surface of the liner segment and the opposite inner surface of the frame.
  • the ejector unit has a first part for abutting or engaging with the outer surface of the liner segment and a second part for abutting or engaging with the inner surface of the frame and is operable to increase a spacing between the first and second parts to thereby increase the spacing between the outer surface of the liner segment and the inner surface of the frame.
  • the liner segment of the gyratory or cone crusher may include one or several of the features described above for the liner segment and ejector unit.
  • the gyratory or cone crusher may further comprise means for operating the ejector unit, e.g. including a hydraulic or pneumatic line or hose extending to each ejector unit in the crusher.
  • the liner segments of the gyratory or cone crusher may be arranged in at least one tier or row along the inner circumference of the frame.
  • At least one tier or row of the liner segments of the gyratory or cone crusher may be arranged so that several or even all liner segments in the row, preferably all liner segments but one in the row, are provided with an ejector unit.
  • One lifting bag could in principle be installed to act upon several (adjacent) concaves.
  • a load distributor plate could then be provided so that the lifting bag is unaffected by any potential gap between the concaves or if one concave comes off before the other.
  • the ejector unit of the gyratory or cone crusher may be disposed in the area of a top edge of the liner segment.
  • the liner segments of the gyratory or cone crusher may be concave liners.
  • a backing such as an epoxy backing may be disposed between the outer surface of the liner segment and the inner surface of the frame to integrate the ejector unit with the liner segment and the support.
  • the gyratory or cone crusher may further be associated with a control unit to control the activation of the ejector unit(s), e.g. from a remote location, e.g. by way of a wireless connection.
  • the present invention further provides a method of dismounting at least one liner segment from a gyratory or cone crusher as recited in claim 18.
  • the method includes the steps of arranging an expandable ejector unit between the outer surface of the liner segment and the opposite inner surface of the frame, the ejector unit having a first part abutting or engaging with the outer surface of the liner segment and a second part abutting or engaging with the inner surface of the frame, and operating the ejector unit to increase a spacing between the first and second part to thereby increase the spacing between the outer surface of the liner segment and the inner surface of the frame.
  • one keystone liner segment in each of the tiers or rows may be removed, e.g. with the aid of a thermal lance, to release any hoop stresses prior to activating the ejector unit(s) in said row.
  • the ejector units for the individual segments in a tier or row could be activated one after the other so as to dismount the segments one after the other along the circumference of the crusher; or several ejector units could be activated simultaneously to dismount several, possibly several adjacent, liner segments simultaneously.
  • the dismounted liner segments can then be removed from the crusher in any known manner.
  • a removal tray or bin may be positioned below the row of liner segments being ejected, and an entire tier or row of segments may be lifted out of the crusher at the same time.
  • the invention covers the use of an expandable ejector unit such as a lifting bag to dismount a liner segment from a gyratory or cone crusher, as recited in claim 21.
  • the present invention also relates to a liner segment for a gyratory or cone crusher as recited in claim 22.
  • the liner segment of claim 22 comprises an ejector unit engagement portion configured to receive or accommodate an expandable ejector unit.
  • the liner segment of claim 22, and the expandable ejector unit which it is configured to receive or accommodate, may comprise any of the aforementioned features or combinations thereof.
  • the ejector unit engagement portion could for example be a recess or cavity in the outer surface of the liner segment to accommodate the expandable ejector unit.
  • the recess or cavity could have a temporary, easy to remove, material inserted therein during installation. When it is time to install the ejector unit, this insert could be removed or destroyed in place to make room for the ejector unit.
  • the shape of the recess in the liner segment can be designed to match the shape of the ejector unit, e.g. the lifting bag.
  • the matching shapes may provide for a form-fit between the ejector unit and the liner segment.
  • Fig. 6 schematically illustrates a previously known gyratory crusher 100 in section.
  • the gyratory crusher 100 has a vertically extending main shaft 102 and a frame 104.
  • the shaft 102 has a longitudinal axis coinciding with a central axis A of the crusher.
  • the crusher includes an eccentric assembly which in this previously known embodiment is provided in the form of two eccentric rings 106, 108 rotatably supported about the shaft 102.
  • a crusher head 110 is radially supported by and rotatable about the eccentric rings 106, 108.
  • a drive shaft 112 is connected to a drive motor and is provided with a pinion 114.
  • the drive shaft 112 is arranged to rotate the lower eccentric ring 108 by the pinion 114 engaging a gear rim 116 mounted on the lower eccentric ring 108.
  • the crusher head 110 executes a gyrating movement.
  • An inner crushing shell 118 also designated a mantle, is mounted on the crusher head 110.
  • Crusher head 110 and mantle 118 are parts of an overall head assembly.
  • An outer crushing shell 120 also designated a bowl, is mounted on the frame 104.
  • a crushing gap 122 is formed between the two crushing shells 118, 120.
  • FIG. 1 schematically illustrates a part of a bowl of a gyratory crusher which is constructed in accordance with the present invention.
  • the bowl is constituted by a plurality of liner segments 30, with outer surfaces of the liner segments 30 facing an inner circumferential surface of a frame 40 of the crusher which is substantially annular.
  • the liner segments 30 are configured to be arranged in at least one tier or row along the inner circumference of the frame 40 of the crusher.
  • the liner segments are provided in the form of concave liners, also designated concaves.
  • concaves concave liners
  • segments may therefore be used interchangeably to designate the liner segments.
  • an epoxy backing (not specifically illustrated) would be poured into the remaining gap between the outer surfaces of the liner segments 30 and the facing inner circumferential surface of the frame 40.
  • the epoxy backing is, in a manner known per se, provided to structurally reinforce the concaves 30 and assist with contact between the radially outward facing surfaces of the concaves 30 and the radially inward facing surfaces of the frame 40.
  • the backing material fills the void between the concaves 30 and the frame 40 to provide a solid assembly.
  • the epoxy backing also integrates the lifting bag 50 with the liner segment 30 and the frame 40. Lead, zinc, babbit metal and other materials have been used as alternatives to epoxy resin.
  • the liner segments 30 are each provided with an expandable ejector unit 50 arranged between the outer surface of the liner segment 30 and the opposite inner surface of the frame 40.
  • the ejector unit is expandable so as to increase the spacing between the outer surface of the liner segment 30 and the inner surface of the frame 40.
  • the ejector unit is mounted in its undeployed state between the rear surface of the concave and the opposite surface of the frame 40. In other words, the ejector unit is pre-installed between the rear surface of the concave liner segment 30 and the opposite surface of the frame or topshell 40. If time has come for the concave 30 to be removed, the ejector unit is operated to be expanded, prising the concave 30 away from its support and breaking the epoxy backing.
  • the invention therefore removes the need for use of a hydraulic / pneumatic hammer to assist with the removal of the worn concave segments from a gyratory or cone crusher and avoids the need for workers being present in the area of the concaves proper. This is a significant safety improvement over the existing methodology on the one hand and will also result in significant reduction in downtime during concave re-metal maintenance on the other hand.
  • the invention encompasses ejector units which are expandable in different ways, e.g. pneumatically or hydraulically.
  • One practical implementation of the expandable ejector unit which is also used in the embodiment shown in Figures 1 through 5 , is an inflatable lifting bag 50.
  • the lifting bag 50 is arranged between the outer surface of the liner segment 30 and the opposite inner surface of the frame 40 of the crusher.
  • the lifting bag 50 has opposite main surfaces, a first one abutting or engaging with the outer surface of the liner segment 30 and a second one abutting or engaging with the inner surface of the frame 40.
  • the lifting bag 50 is installed in its deflated state.
  • the lifting bag 50 When the lifting bag 50 is operated to be inflated, the volume of the lifting bag 50 increases, and the spacing between the first and second surfaces is enlarged to thereby push the liner segment 30 away from the inner surface of the frame 40, breaking the epoxy backing and dismounting the liner segment 30 from the frame 40.
  • each of the liner segments 30 illustrated in Figure 1 is provided with a lifting bag 50.
  • each liner segment 30 but one in the row of liner segments 30 would be provided with an expandable ejector unit for reasons set forth further below.
  • each lifting bag 50 is associated with one liner segment 30.
  • a lifting bag 50 with several, i.e. two, three or even more, adjacent liner segments 30 which would then be acted upon simultaneously.
  • the lifting bag 50 is disposed in the area of a top edge of the respective liner segment 30. Compared to the case in which the lifting bag 50 would be arranged in a central area of the liner segment 30, the removal of the liner segment 30 is facilitated thereby: When inflated, the lifting bag 50 then acts upon the upper portion of the liner segment 30 to "peel" the liner segment 30 away from the underlying support or frame 40.
  • Figure 2a shows a liner segment 30 of the embodiment of Figure 1 without a lifting bag 50.
  • the concave liner 30 of this embodiment is distinguished from similar concaves of the prior art in that a cavity or recess 60 is included in the back of the liner segment 30 which is large enough to accommodate the deflated lifting bag 30 when the liner segment 30 is mounted to the crusher.
  • FIG. 2b Illustrated in Figure 2b is one exemplary implementation of a lifting bag which is available under the trade name "MatJack" for lifting, moving, spreading and fixing applications.
  • the lifting bag is capable of lifting a predetermined weight such as e.g. 6 tons if inflated with air under a corresponding pressure.
  • the lifting bag has an approximately square shape, but a lifting bag for use in the invention could as well have other shapes such as rectangular or round.
  • the lifting bag 50 and the recess 60 in the liner segment 30 have matching shapes, e.g. to provide for a form-fit between the lifting bag 50 and the liner segment 30.
  • the lifting bag 50 has four tabs 51 integrally molded to the edges thereof for lifting or attaching to fixtures.
  • the recess 60 in the back of the liner segment 30 includes corresponding cut-outs 61.
  • the lifting bag 50 could be installed between the rear surface of the concave 30 and the opposite surface of the frame 40 without such a recess 60 being formed in the back of the concave 30.
  • the surface area of the lifting bag 50 should therefore be sufficiently large to create the desired force.
  • the surface area of the lifting bag 50 should suitably amount to a sufficient percentage of the surface area of the concave 30, i.e. the surface area of the rear or outer surface of the concave as shown in Figure 2a .
  • the surface area of the lifting bag 50 could amount to about one quarter of the surface area of the rear or outer surface of the concave 30, to give an example.
  • Figures 3a and 3b illustrate the liner segment or concave 30, in a perspective view and from the side, with the lifting bag 50 installed in the aforementioned recess 60.
  • Figures 4a and 4b illustrate the liner segment 30, again in a perspective view and from the side, with the lifting bag 50 after inflation. Also shown is the exemplary lifting bag 50 in the inflated state ( Figure 4c ).
  • Figures 5a and 5b are partial views from the side and in perspective of the liner segment 30 and the crusher frame 40 in a state in which the lifting bag 50 between the outer surface of the concave 30 and the inner surface of the frame 40 has been inflated and has separated the concave 30 from the frame 40.
  • a pneumatic line or hose extends from each lifting bag in the crusher towards a source of compressed air (not shown).
  • the lifting bags 50 in Figures 2b and 3c include a corresponding connector 52 for a pneumatic line.
  • the pneumatic lines from several lifting bags 50 could be combined via corresponding manifolds.
  • a control unit such as push button, deadman or joy stick controller is provided to control the supply of compressed air to independently or simultaneously inflate one or more of the lifting bags 50.
  • each tier or row is provided with an ejector unit.
  • all liner segments but one in each tier or row are provided with an ejector unit.
  • the remaining segment in each row is the "keystone" segment which, as in conventional methods, is removed with the help of a thermal lance so as to release any hoop stresses before the remaining concaves 30 are dismounted by activating the ejector units such as lifting bags 50. This sequence of steps is typically performed starting with the uppermost row of segments 30 in the crusher.
  • the lifting bags 50 for the individual segments 30 in a tier or row can in principle be activated one after the other so as to dismount the segments 30 one after the other along the circumference of the crusher similar as in the prior art.
  • the dismounted liner segments 30 are then removed from the crusher in any known manner.
  • a removal tray or bin (not shown) could be positioned below the row of liner segments being ejected, and an entire tier or row of segments could be lifted out of the crusher at the same time.
  • the invention will result in an overall improvement in shutdown efficiency and effectiveness for all concave re-metal works.
  • the principle of the present invention i.e. the use of an expandable ejector unit to dismount a liner segment from the underlying crusher frame, could also work with so-called double-tier concave segments:
  • the double-tier concave segments are twice as high as regular liner segments. This translates to 50% fewer consumable parts to be changed, and ultimately reduces exposure to risks for the crews performing the re-metal.

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  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Crushing And Grinding (AREA)
  • Crushing And Pulverization Processes (AREA)

Claims (23)

  1. Segment (30) de revêtement pour un broyeur giratoire ou à cône,
    le broyeur comprenant un ensemble tête incluant une tête de broyeur pourvue d'une première enveloppe de broyage ou manteau, et un cadre (40) pourvu d'une seconde enveloppe de broyage ou bol, dans lequel le manteau et le bol (40) définissent un espace de broyage entre eux, et dans lequel le bol est constitué d'une pluralité de segments (30) de revêtement, les surfaces externes des segments (30) de revêtement faisant face à une surface interne du cadre (40),
    caractérisé en ce que
    le segment (30) de revêtement est pourvu d'une unité (50) d'éjection expansible à agencer entre la surface externe du segment (30) de revêtement et la surface interne opposée du cadre (40), et
    l'unité (50) d'éjection présente une première partie pour venir en butée ou venir en prise avec la surface externe du segment (30) de revêtement et une seconde partie pour venir en butée ou venir en prise avec la surface interne du cadre (40) et sert à augmenter un espacement entre ses première et seconde parties pour augmenter ainsi l'espacement entre la surface externe du segment (30) de revêtement et la surface interne du cadre (40).
  2. Segment (30) de revêtement pour un broyeur giratoire ou à cône selon la revendication 1, dans lequel l'unité (50) d'éjection est actionnable de manière pneumatique ou hydraulique.
  3. Segment (30) de revêtement pour un broyeur giratoire ou à cône selon la revendication 1 ou la revendication 2, dans lequel l'unité (50) d'éjection sert à augmenter son volume.
  4. Segment (30) de revêtement pour un broyeur giratoire ou à cône selon la revendication 3, dans lequel l'unité (50) d'éjection inclut un sac de levage.
  5. Segment (30) de revêtement pour un broyeur giratoire ou à cône selon l'une quelconque des revendications précédentes, comprenant en outre un moyen d'actionnement de l'unité (50) d'éjection.
  6. Segment (30) de revêtement pour un broyeur giratoire ou à cône selon la revendication 5, dans lequel le moyen d'actionnement inclut une conduite hydraulique ou pneumatique s'étendant jusqu'à chaque unité (50) d'éjection dans le broyeur.
  7. Segment (30) de revêtement pour un broyeur giratoire ou à cône selon l'une quelconque des revendications précédentes, dans lequel les segments (30) de revêtement sont configurés pour être agencés dans au moins un étage ou une rangée le long de la circonférence interne du cadre (40) du broyeur.
  8. Segment (30) de revêtement pour un broyeur giratoire ou à cône selon l'une quelconque des revendications précédentes, dans lequel l'unité (50) d'éjection est disposée dans la zone d'un bord supérieur du segment (30) de revêtement.
  9. Segment (30) de revêtement pour un broyeur giratoire ou à cône selon l'une quelconque des revendications précédentes, dans lequel le segment (30) de revêtement est un revêtement concave.
  10. Segment (30) de revêtement pour un broyeur giratoire ou à cône selon l'une quelconque des revendications précédentes, dans lequel la surface externe du segment (30) de revêtement est configurée pour recevoir ou pour loger l'unité (50) d'éjection expansible.
  11. Segment (30) de revêtement pour un broyeur giratoire ou à cône selon la revendication 10, dans lequel une cavité ou un évidement (60) est inclus(e) dans la surface externe du segment (30) de revêtement pour loger l'unité (50) d'éjection expansible.
  12. Broyeur giratoire ou à cône comprenant un ensemble tête incluant une tête de broyeur pourvue d'une première enveloppe de broyage ou manteau, et un cadre (40) pourvu d'une seconde enveloppe de broyage ou bol, dans lequel le manteau et le bol définissent un espace de broyage entre eux, et dans lequel le bol est constitué d'une pluralité de segments (30) de revêtement, les surfaces externes des segments (30) de revêtement faisant face à une surface interne du cadre (40),
    caractérisé en ce que
    au moins l'un des segments (30) de revêtement est pourvu d'une unité (50) d'éjection expansible agencée entre la surface externe du segment (30) de revêtement et la surface interne opposée du cadre (40), et
    l'unité (50) d'éjection présente une première partie pour venir en butée ou venir en prise avec la surface externe du segment (30) de revêtement et une seconde partie pour venir en butée ou venir en prise avec la surface interne du cadre (40) et sert à augmenter un espacement entre ses première et seconde parties pour augmenter ainsi l'espacement entre la surface externe du segment (30) de revêtement et la surface interne du cadre (40).
  13. Broyeur giratoire ou à cône selon la revendication 12, dans lequel le segment (30) de revêtement est conformément à l'une quelconque des revendications 1 à 11.
  14. Broyeur giratoire ou à cône selon la revendication 12 ou la revendication 13, comprenant en outre un moyen d'actionnement de l'unité (50) d'éjection, tel qu'un tuyau ou une conduite hydraulique ou pneumatique s'étendant jusqu'à chaque unité (50) d'éjection dans le broyeur.
  15. Broyeur giratoire ou à cône selon l'une quelconque des revendications 12 à 14, dans lequel les segments (30) de revêtement sont agencés dans au moins un étage ou une rangée le long de la circonférence interne du cadre (40), et au moins un étage ou une rangée des segments (30) de revêtement est agencé de telle sorte que plusieurs ou la totalité des segments de revêtement de la rangée, de préférence tous les segments de revêtement de la rangée sauf un, sont pourvus d'une unité (50) d'éjection.
  16. Broyeur giratoire ou à cône selon l'une quelconque des revendications 12 à 15, dans lequel un support tel qu'un support époxy est disposé entre la surface externe du segment de revêtement et la surface interne du cadre (40) pour intégrer l'unité (50) d'éjection avec le segment (30) de revêtement et le cadre (40).
  17. Broyeur giratoire ou à cône selon l'une quelconque des revendications 12 à 16, dans lequel le broyeur est associé à une unité de commande pour commander l'activation de l'unité ou des unités d'éjection, par exemple depuis un emplacement éloigné, par exemple par le biais d'une connexion sans fil.
  18. Procédé de démontage d'au moins un segment de revêtement issu d'un broyeur giratoire ou à cône,
    le broyeur comprenant un ensemble tête incluant une tête de broyeur pourvue d'une première enveloppe de broyage ou manteau, et un cadre (40) pourvu d'une seconde enveloppe de broyage ou bol, dans lequel le manteau et le bol définissent un espace de broyage entre eux, et dans lequel le bol est constitué d'une pluralité de segments (30) de revêtement, les surfaces externes des segments (30) de revêtement faisant face à une surface interne du cadre (40),
    caractérisé par les étapes consistant à
    agencer une unité (50) d'éjection expansible entre la surface externe du segment (30) de revêtement et la surface interne opposée du cadre (40), l'unité (50) d'éjection présentant une première partie pour venir en butée ou venir en prise avec la surface externe du segment (30) de revêtement et une seconde partie pour venir en butée ou venir en prise avec la surface interne du cadre (40), et
    actionner l'unité (50) d'éjection pour augmenter un espacement entre les première et seconde parties pour augmenter ainsi l'espacement entre la surface externe du segment (30) de revêtement et la surface interne du cadre (40).
  19. Procédé selon la revendication 18, dans lequel les segments (30) de revêtement sont agencés dans au moins un étage ou une rangée le long de la circonférence interne du cadre (40) du broyeur, et dans chacun des étages ou chacune des rangées, un segment de revêtement en clé de voûte est retiré, par exemple à l'aide d'une lance thermique, avant d'activer la(les) unité(s) (50) d'éjection dans ladite rangée.
  20. Procédé selon la revendication 19, dans lequel un bac ou compartiment de retrait est positionné sous la rangée de segments (30) de revêtement éjectés, et un étage entier ou une rangée entière de segments (30) est soulevé(e) du broyeur en même temps.
  21. Utilisation d'une unité (50) d'éjection expansible telle qu'un sac de levage pour démonter un segment (30) de revêtement d'un broyeur giratoire ou à cône,
    le broyeur comprenant un ensemble tête incluant une tête de broyeur pourvue d'une première enveloppe de broyage ou manteau, et un cadre (40) pourvu d'une seconde enveloppe de broyage ou bol, dans lequel le manteau et le bol définissent un espace de broyage entre eux, et dans lequel le bol est constitué d'une pluralité de segments (30) de revêtement, les surfaces externes des segments (30) de revêtement faisant face à une surface interne du cadre (40),
    l'unité (50) d'éjection étant agencée entre la surface externe du segment (30) de revêtement et la surface interne opposée du cadre (40), et
    l'unité (50) d'éjection présentant une première partie pour venir en butée ou venir en prise avec la surface externe du segment (30) de revêtement et une seconde partie pour venir en butée ou venir en prise avec la surface interne du cadre (40), l'unité (50) d'éjection servant à augmenter un espacement entre les première et seconde parties pour augmenter ainsi l'espacement entre la surface externe du segment (30) de revêtement et la surface interne du cadre (40).
  22. Segment (30) de revêtement pour un broyeur giratoire ou à cône,
    le broyeur comprenant un ensemble tête incluant une tête de broyeur pourvue d'une première enveloppe de broyage ou manteau, et un cadre (40) pourvu d'une seconde enveloppe de broyage ou bol, dans lequel le manteau et le bol (40) définissent un espace de broyage entre eux, et dans lequel le bol est constitué d'une pluralité de segments (30) de revêtement, les surfaces externes des segments (30) de revêtement faisant face à une surface interne du cadre (40),
    caractérisé en ce que
    le segment (30) de revêtement comprend une partie de mise en prise d'unité d'éjection configurée pour recevoir ou loger une unité (50) d'éjection expansible à agencer entre la surface externe du segment (30) de revêtement et la surface interne opposée du cadre (40), l'unité (50) d'éjection présentant une première partie pour venir en butée ou venir en prise avec la surface externe du segment (30) de revêtement et une seconde partie pour venir en butée ou venir en prise avec la surface interne du cadre (40) et servant à augmenter un espacement entre les première et seconde parties pour augmenter ainsi l'espacement entre la surface externe du segment (30) de revêtement et la surface interne du cadre (40).
  23. Segment (30) de revêtement selon la revendication 22, dans lequel la partie de mise en prise d'unité d'éjection est un évidement (60) dans la surface externe du segment (30) de revêtement pour loger l'unité (50) d'éjection expansible.
EP19188801.5A 2019-07-29 2019-07-29 Segment de revêtement pour broyeur giratoire ou à cône Active EP3771492B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP19188801.5A EP3771492B1 (fr) 2019-07-29 2019-07-29 Segment de revêtement pour broyeur giratoire ou à cône
AU2020322154A AU2020322154B2 (en) 2019-07-29 2020-07-29 Liner segment for a gyratory or cone crusher
CN202021538017.XU CN213996009U (zh) 2019-07-29 2020-07-29 回转破碎机、圆锥破碎机及用于其的衬垫节段
PCT/EP2020/071393 WO2021018959A1 (fr) 2019-07-29 2020-07-29 Segment de blindage pour broyeur giratoire ou à cône
CN202010744918.2A CN112295652B (zh) 2019-07-29 2020-07-29 用于回转破碎机或圆锥破碎机的衬垫节段
CL2022000227A CL2022000227A1 (es) 2019-07-29 2022-01-28 Segmento de revestimiento para chancador rotatorio o cónico.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19188801.5A EP3771492B1 (fr) 2019-07-29 2019-07-29 Segment de revêtement pour broyeur giratoire ou à cône

Publications (2)

Publication Number Publication Date
EP3771492A1 EP3771492A1 (fr) 2021-02-03
EP3771492B1 true EP3771492B1 (fr) 2024-05-15

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EP19188801.5A Active EP3771492B1 (fr) 2019-07-29 2019-07-29 Segment de revêtement pour broyeur giratoire ou à cône

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EP (1) EP3771492B1 (fr)
CN (2) CN112295652B (fr)
AU (1) AU2020322154B2 (fr)
CL (1) CL2022000227A1 (fr)
WO (1) WO2021018959A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3771492B1 (fr) * 2019-07-29 2024-05-15 Metso Finland Oy Segment de revêtement pour broyeur giratoire ou à cône
EP4029609A1 (fr) * 2021-01-18 2022-07-20 Metso Outotec Finland Oy Élément de revêtement d'usure pour un broyeur
EP4029732A1 (fr) * 2021-01-18 2022-07-20 Metso Outotec Finland Oy Élément de revêtement d'usure pour une benne de transport de camion

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Publication number Priority date Publication date Assignee Title
US2813685A (en) * 1954-07-16 1957-11-19 Lester R Macleod Crusher lining
GB872191A (en) * 1959-02-18 1961-07-05 Lester Rounds Macleod Improvements in crusher linings
AUPQ347899A0 (en) 1999-10-15 1999-11-11 Wescone Crushers Pty. Ltd. The replacement of wear liners for a gyratory crusher
AU2001232847A1 (en) * 2000-02-10 2001-08-20 Me International, Inc. Concaves for gyratory crusher
US7229040B2 (en) 2004-10-25 2007-06-12 Johnson Crushers International Bowl liner retaining method and apparatus
US7467756B2 (en) * 2006-04-10 2008-12-23 Johnson Crushers International Bowl liner movement detection method and apparatus
CN103934059A (zh) * 2014-03-28 2014-07-23 广西华锡集团股份有限公司再生资源分公司 一种弹簧圆锥破碎机调整装置
CN203764312U (zh) * 2014-03-28 2014-08-13 衢州美安普矿山机械有限公司 一种圆锥破碎机定锥衬板固定结构
CN104056679B (zh) * 2014-06-18 2016-12-07 中信重工机械股份有限公司 一种新型圆锥破碎机定锥衬板锁紧和快速更换机构
CN104056680B (zh) * 2014-06-18 2017-02-15 中信重工机械股份有限公司 一种新型圆锥破碎机排料口宽度调整装置
CN204412336U (zh) * 2015-01-20 2015-06-24 杭州费勒韦尔机械有限公司 圆锥破碎机
CN105214768B (zh) * 2015-09-22 2020-08-07 浙江美安普矿山机械股份有限公司 圆锥破碎机
CN208465992U (zh) * 2018-04-11 2019-02-05 洛阳博林合金材料有限公司 一种圆锥式破碎机用定锥衬板
CN208526735U (zh) * 2018-07-18 2019-02-22 鄂州市恒基智能装备制造有限公司 一种圆锥破碎机密封装置
EP3771492B1 (fr) * 2019-07-29 2024-05-15 Metso Finland Oy Segment de revêtement pour broyeur giratoire ou à cône

Also Published As

Publication number Publication date
CN112295652B (zh) 2023-08-18
CN213996009U (zh) 2021-08-20
AU2020322154A1 (en) 2022-03-17
CN112295652A (zh) 2021-02-02
EP3771492A1 (fr) 2021-02-03
AU2020322154B2 (en) 2022-06-16
WO2021018959A1 (fr) 2021-02-04
CL2022000227A1 (es) 2023-02-24

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