WO2009154795A1 - Calibreur de minerai secondaire mobile - Google Patents

Calibreur de minerai secondaire mobile Download PDF

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Publication number
WO2009154795A1
WO2009154795A1 PCT/US2009/003694 US2009003694W WO2009154795A1 WO 2009154795 A1 WO2009154795 A1 WO 2009154795A1 US 2009003694 W US2009003694 W US 2009003694W WO 2009154795 A1 WO2009154795 A1 WO 2009154795A1
Authority
WO
WIPO (PCT)
Prior art keywords
sizer
mobile
primary
crusher
mobile sizer
Prior art date
Application number
PCT/US2009/003694
Other languages
English (en)
Inventor
Glenn Irl Davis
Original Assignee
Flsmidth Rahco Inc.
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 Flsmidth Rahco Inc. filed Critical Flsmidth Rahco Inc.
Publication of WO2009154795A1 publication Critical patent/WO2009154795A1/fr

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
    • B02C21/00—Disintegrating plant with or without drying of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00—Disintegrating plant with or without drying of the material
    • B02C21/02—Transportable disintegrating plant
    • B02C21/026—Transportable disintegrating plant self-propelled
    • 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
    • B02C23/02—Feeding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/28—Piling or unpiling loose materials in bulk, e.g. coal, manure, timber, not otherwise provided for

Definitions

  • This invention relates to solid material comminution and disintegration, and more particularly to a crushing system for receiving, comminuting, transporting, re-comminuting and depositing excavated comminuted material from an open pit mine comprising a mobile secondary rock crusher operating in concert with a mobile primary rock crusher.
  • Such apparatus and methods generally comprise a semi permanently installed rock crusher interconnected to conveyor systems for crushing and transporting the material to a site removed from the excavation site.
  • Material is excavated from a mine face using machines such as drag lines, front-end loaders and mechanical shovels. Blasting with explosives may precede excavation.
  • the excavated material is deposited directly into the rock crusher by the excavating machines.
  • beneficial results may be obtained through the use of the primary mobile crusher, it is impossible for the primary crusher to perform its intended function and also provide a more precise processing of smaller material. Even more beneficial results may, therefore, be obtained when a secondary crusher/sizer is used in conjunction with the primary crusher to further process material.
  • a secondary crusher/sizer is used in conjunction with the primary crusher to further process material.
  • the advantages of having a mobile crusher at the mine face are diminished when the material has to be conveyed considerable distances to a stationary secondary crusher.
  • a self-propelled material removal system having a mobile input, primary sizer and transport mechanism receives, comminutes and transports excavated material to a mobile secondary sizer.
  • a discharge conveyor carries comminuted material from the secondary crusher to a stockpile or to trucks.
  • An automated control system using GPS technology cooperatively moves the secondary sizer and the discharge conveyor in conjunction with the movement of the primary mobile crusher and the primary crusher's mobile telescoping conveyor to maintain a continuously operative interconnection there between while moving and while stationary for continuous operation.
  • a principal object to provide an ore or other material processing system comprising a mobile secondary crusher that moves in conjunction with a mobile primary crusher to thereby increase the efficiency of material processing.
  • a further object is to provide a mobile secondary crusher that moves in conjunction with a mobile primary crusher to crush ore received from the mobile primary crusher to a nominal size required by the ore processing plants.
  • a further object to provide such a mobile secondary sizer having a control system adaptable to operate automatically that advances the mobile secondary sizer to maintain continuous operative connection with the primary mobile sizer as the ore removal system incorporating the primary sizer advances. a further object to provide such a mobile secondary sizer that is adaptable to receive the telescoping conveyor of the primary mobile sizer.
  • Figure 1 is a diagrammatic plan view of a shovel working on a mine face in an open pit mine, a primary mobile sizer that is fed by the shovel, a telescoping conveyor extending from the primary mobile sizer in a number of alternative positions, a mobile secondary crusher and associated conveyor and trucks and/or a stockpile to which product from the mobile secondary sizer is directed.
  • Figure 2 is a plan view of the mobile secondary sizer and an associated conveyor.
  • Figure 3 is an orthographic side view of the mobile secondary sizer system showing the mobile sizer being fed by a telescoping conveyor and a conveyor feeding a pair of trucks showing operational arrangement of the components.
  • mobile primary sizer 11 is positioned proximate a shovel 12 and a mine face 13 being excavated. Plural mobile primary mobile sizers 11 may operate in unison to excavate the same mine face 13.
  • the mobile sizer 11 is interconnected to a conveyor 14, which is preferably but not necessarily a telescoping conveyor. Conveyor 14 communicates with secondary mobile sizer 15 (which can be positioned at any of a number of alternate locations relative the primary crusher 11 , for example in Figure 1 sizer 15 is shown as being positioned at alternate locations 1a, 1 b, 1c, 1 d and 1e).
  • Secondary mobile sizer 15 is movable on twin tracks 21 and 22 and operatively communicates with discharge conveyor 16 for transporting the comminuted material to, for example, a material stockpile 30 (for example, when the sizer 15 is positioned at locations 1 b and 1c) or one or more trucks 17 (for example at location 1e).
  • the coordination of the movement of secondary mobile sizer 15 relative to mobile primary sizer 11 and telescoping conveyor 14 can be controlled by a control system (not shown) which can be located, for example, in operator's cab 41 ( Figure 3).
  • Shovel 12 pivots about its vertical axis (not shown) so that bucket 19 may excavate material from the mine face 13, which may be, without limitation, topsoil, overburden, ore or the like.
  • the shovel 12 lifts the bucket 19 and pivots about its vertical axis so that the bucket 19 is positioned above the feed hopper 20 of primary mobile sizer 11 to empty the material therein, in which it is comminuted to a size sufficient to be fed via conveyor 14 to the secondary crusher 15.
  • the material After exiting secondary crusher 15 the material is deposited into hopper 23 and thereafter onto discharge conveyor 16, which is for example an endless belt conveyor operated by drive 24 and adaptable to move with secondary crusher 15.
  • the discharge conveyor 16 transports the material to any of a number of possible destinations, for example, stockpile 30 or trucks 17.
  • sliding conveyor 25 At the end 16b of discharge conveyor 16 remote from secondary crusher 15 is sliding conveyor 25 which receives material from discharge conveyor 16. Sliding conveyor 25 extends backward and forward relative to end 16b to thereby to continuously fill a plurality of trucks 17 positioned to receive material or, alternatively, to extend to different part of stockpile 30 without the need for mobile convey 15 to change positions.
  • secondary mobile sizer 15 will be adapted to automatically advance to maintain a predetermined position relative to primary mobile sizer 11. The movement of secondary mobile sizer 15 will result in the movement of conveyor 14, which in the depicted embodiment is pivotable around point 31.
  • My excavating system generally provides a control system and a self propelled primary mobile sizer 11 interconnected to conveyor 14 operatively communicating with a self propelled secondary mobile sizer 15 and a discharge conveyor 16.
  • Secondary mobile sizer 15 is preferably adaptable to support the end 14 b of conveyor 14, from which it receives the primary crushed ore which is subsequently put through a sizer, and sent out a discharge conveyor to be loaded into trucks, stockpiled or the like.
  • the discharge conveyor 16 has a first end portion 16a proximate the mobile sizer 15, a second end portion 16b distal from the mobile sizer 15 and a drive assembly 26 powering an endless belt 26 for transporting the comminuted material there between.
  • the body 40 of secondary sizer 15, which may be a box girder type chassis made from steel plate, is supported on spaced apart crawler track assemblies, pivoting track assembly 21 and fixed track assembly 22.
  • the chassis also supports secondary sizer 15, which can be a twin roll sizer, various hoppers and associated chutes, discharge conveyor 16 for the sized ore, and various platforms for maintenance access, a cab, and electrical and hydraulic rooms.
  • First end portion 25a of the sliding conveyor 25 is positioned spacedly adjacent below the end portion 16b of the discharge conveyor 16 to receive comminuted material therefrom.
  • Sliding conveyor 25 will direct material flow into the trucks 17, allowing them to be filled in sequence without stopping the flow of material through the secondary sizer 15.
  • the secondary sizer 15 is fully mobile, and able to keep up with the primary sizer 11 and any associated shovels 12 as they move along the ore excavation face 13.
  • Dual crawler track assembly 22 is preferably pivotally mounted to the body 20.
  • the dual crawler track assemblies 21 and 22 support the majority of the weight of the secondary mobile sizer 19 and any associated structures and the lateral spacing enhances stability.
  • Steering ram (not shown) causes the dual track assembly 21 and 22 to steer.
  • Each track assembly 21 and 22 may be powered with drive motors and gear assemblies (not shown).
  • End 14b of conveyor 14 can be positioned to direct material into an optional receiving hopper 26 of secondary sizer 15.
  • the secondary crusher will be capable of taking material which may have an input size of approximately 350 mm and reduce it to the 150mm nominal size required by an ore processing plant. Other size ranges can be comminuted depending on the needs of the individual practitioner.
  • the specific type of secondary crushing machine that can employed will vary, and essentially any type of low speed crusher adaptable to be fitted on a movable frame can be utilized in the invention.
  • a double roll crusher can be utilized.
  • the secondary sizer can be a jaw or cone crusher.
  • One end 16a of discharge conveyor 16 is positioned under the body 20 and is below the end of hopper 24.
  • Comminuted material exiting sizer 15 is deposited on discharge conveyor 16 and is transported end portion 16 b, where the comminuted material is deposited onto sliding conveyor 25.
  • Other material conveying structures and methods can be utilized in conjunction with material sizer 15.
  • An operating system monitors functions and movements of the secondary mobile sizer 15 relative to the primary crusher 11.
  • the operating system may be optionally monitored and managed by an operator within the operator cab 41 can use global positioning satellite (GPS) technology and a plurality of sensors, such as proximity sensors and load sensors arrayed about the primary mobile sizer 11 , the telescoping conveyor 14, the secondary mobile sizer 15 and the sliding conveyor 25 to monitor the system operations and functions, to adjust operations and functions and to automatically have the mobile secondary sizer 15 follow the movements of the primary mobile sizer 11 to have continuous operative interconnection between the system components and to cause the components to move independently and cooperatively to maintain the operative interconnection as the mobile sizer 11 advances with the shovel or shovels 12 as the mine face 13 is excavated.
  • the control system may operate autonomously by means of computers and the like or may be overridden for manual operation if desired.
  • Second end portion 14b of the telescoping conveyor 14 is operatively connected to mobile secondary sizer 15 with a pivoting connection 32.
  • Axial extension and contraction of the telescoping conveyor 14 is controlled by sensors (not shown) interacting with the control system. When the sensors detect the end of the telescoping conveyor 14 is at risk of moving out of an acceptable operating range, the sensors initiate a signal that is communicated to the control system.
  • the control system actuates motors (not shown) interconnected with the telescoping conveyor 14 to re-establish positioning of the end portion within the acceptable operating range of the secondary crusher 15. Material deposited onto first end portion of the telescoping conveyor 14 closer to the primary sizer 1 1 is carried by the endless belt to the second end portion 14b where the material is deposited into an input of the secondary mobile crusher 15.
  • telescoping conveyor 14 may axially expand or contract to maintain the continuous operative interconnection between the mobile sizer 11 and the mobile secondary crusher 14.
  • the control system ensures the interconnection between the components remains continuously operational.
  • the mobile sizer 11 , the telescoping conveyor 14, the mobile secondary sizer 15, the discharge conveyor 16 are transported to the mine site in pieces and are assembled on site.

Abstract

L'invention porte sur un système d'extraction de matériau à autopropulsion comprenant un calibreur de minerai principal qui reçoit, fragmente et transporte le matériau vers un calibreur secondaire mobile, grâce à un système de commande automatisé qui déplace de manière coopérative le calibreur mobile principal et le calibreur mobile secondaire de manière à conserver une interconnexion fonctionnelle continue entre eux, à la fois lorsqu'ils se déplacent et lorsqu'ils sont stationnaires.
PCT/US2009/003694 2008-06-21 2009-06-19 Calibreur de minerai secondaire mobile WO2009154795A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13267808P 2008-06-21 2008-06-21
US61/132,678 2008-06-21

Publications (1)

Publication Number Publication Date
WO2009154795A1 true WO2009154795A1 (fr) 2009-12-23

Family

ID=41434365

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/003694 WO2009154795A1 (fr) 2008-06-21 2009-06-19 Calibreur de minerai secondaire mobile

Country Status (1)

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WO (1) WO2009154795A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014001513A1 (fr) * 2012-06-29 2014-01-03 Thyssenkrupp Resource Technologies Gmbh Procédé permettant de faire fonctionner un système équipé d'un concasseur mobile dans une mine à ciel ouvert

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5427439A (en) * 1994-06-14 1995-06-27 Atlantic Richfield Company Surface mining conveyor system
US5586030A (en) * 1994-10-24 1996-12-17 Caterpillar Inc. System and method for managing access to a resource in an autonomous vehicle system
US7143968B2 (en) * 2002-06-06 2006-12-05 Johnson Crushers International Mobile rock crushing plant

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5427439A (en) * 1994-06-14 1995-06-27 Atlantic Richfield Company Surface mining conveyor system
US5586030A (en) * 1994-10-24 1996-12-17 Caterpillar Inc. System and method for managing access to a resource in an autonomous vehicle system
US7143968B2 (en) * 2002-06-06 2006-12-05 Johnson Crushers International Mobile rock crushing plant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014001513A1 (fr) * 2012-06-29 2014-01-03 Thyssenkrupp Resource Technologies Gmbh Procédé permettant de faire fonctionner un système équipé d'un concasseur mobile dans une mine à ciel ouvert

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