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WO2025120613A1 - Dépôt de résidus - Google Patents

Dépôt de résidus Download PDF

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Publication number
WO2025120613A1
WO2025120613A1 PCT/IB2024/062383 IB2024062383W WO2025120613A1 WO 2025120613 A1 WO2025120613 A1 WO 2025120613A1 IB 2024062383 W IB2024062383 W IB 2024062383W WO 2025120613 A1 WO2025120613 A1 WO 2025120613A1
Authority
WO
WIPO (PCT)
Prior art keywords
waterbody
vehicle
free
slurry
platform
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.)
Pending
Application number
PCT/IB2024/062383
Other languages
English (en)
Inventor
William Stone
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.)
Weir Group IP Ltd
Weir Minerals US Inc
Original Assignee
Weir Group IP Ltd
Weir Minerals US 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
Priority claimed from AU2024900367A external-priority patent/AU2024900367A0/en
Application filed by Weir Group IP Ltd, Weir Minerals US Inc filed Critical Weir Group IP Ltd
Publication of WO2025120613A1 publication Critical patent/WO2025120613A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
    • B60F3/00—Amphibious vehicles, i.e. vehicles capable of travelling both on land and on water; Land vehicles capable of travelling under water
    • B60F3/0007—Arrangement of propulsion or steering means on amphibious vehicles
    • B60F3/0023—Arrangement of propulsion or steering means on amphibious vehicles comprising screw-type ground-engaging means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B1/00—Dumping solid waste

Definitions

  • HP08-50 TAILINGS DEPOSITION FIELD OF INVENTION This invention relates to tailings deposition.
  • Most hard rock mining uses wet processing to liberate valuable minerals from the surrounding gangue in ore particles.
  • the ore particles must be fine, typically less than approximately 150 microns in diameter, and typically entrained in liquid to form a slurry. Those fine particles that do not contain any, or sufficient, valuable minerals are rejected. Slurry containing rejected particles is referred to as tailings. Removing the water from tailings is expensive and consumes a large amount of energy.
  • an amphibious vehicle for depositing free-draining slurry particles to create a drainage pathway in a tailings storage waterbody, the amphibious vehicle comprising: (i) a buoyant platform operable to float on the storage waterbody; (ii) at least one drive coupled to the platform for moving the platform over part of the drainage pathway or over the surface of the waterbody; (iii) at least one hydrocyclone mounted on a forward portion of the platform, each hydrocyclone having (a) an underflow for directing discharges of free-draining slurry in front of the platform to start or continue the drainage pathway, and (b) an overflow for directing liquid to a side of the drainage pathway; (iv) a feed manifold mounted on a rearward portion of the platform and having: (a) a plurality of outlets, each outlet feeding a respective one of the at least one hydrocyclones, and (b) at least one inlet for coupling to a flexible pipe wherein the inlet includes a joint
  • free-draining slurry is a slurry comprising particles in the size range from 250 ⁇ m to 400 ⁇ m.
  • the uniformity coefficient (Cu) which is the ratio of the 60% finer size (D60) to the 10% finer size (D10), of the free-draining slurry is less than 3.0, advantageously less than 2.5, ideally, less than 2.1.
  • the free-draining slurry may have a density of 50% or above, or 55% or above, or 60% or above.
  • a first free-draining slurry having a size range from 500 ⁇ m to 1 mm may be used to lay down a lower layer (or layers) of the drainage pathway, then a second free-draining slurry having a size range from 250 ⁇ m to 400 ⁇ m may be used to lay down an upper layer (or layers) of the drainage pathway on top of the lower layer or layers.
  • the first free-draining slurry may be obtained from a coarse gangue rejection process unit based on synthetic (foam based) flotation, such as described in US 11,642,679 B2 and related patents and applications of CiDRA Corporate Services LLC.
  • the second free-draining slurry may be obtained from a coarse particle flotation process unit, such as described in US 10,052,637 B2 and related patents and applications of Eriez Manufacturing Co.
  • the vehicle includes a global positioning system to facilitate autonomous movement over the surface of the waterbody.
  • the vehicle advances the platform into the waterbody without depositing any drainage pathway, and reverses the platform while depositing the drainage pathway in front of the forward portion of the platform such that the vehicle does not travel over the newly deposited drainage pathway. This may improve the stability of the drainage pathway as it is formed. It may also be easier to move or support a flexible pipe coupled to the at least one inlet because the flexible pipe may be buoyant on the waterbody rather than moving along a drainage pathway.
  • the at least one hydrocyclone comprises a plurality of hydrocyclones.
  • each hydrocyclone is inclined at a non-zero degree angle to the vertical.
  • the feed manifold is connected to a roll of flexible pipe located at one side of the tailings storage waterbody.
  • the roll of flexible pipe is coupled to a tailings spool that conveys tailings from a mine site.
  • the roll of flexible pipe is coupled to a mixing station that creates the free-draining slurry.
  • a tailings distributor is coupled to the tailings spool and is operable to split the free-draining slurry and direct the flows into a plurality of perimeter pipes, each perimeter pipe (i) including a flexible pipe coupling at a distal end from the tailings distributor, and (ii) extending around a different side of the tailings storage waterbody.
  • each perimeter pipe (i) including a flexible pipe coupling at a distal end from the tailings distributor, and (ii) extending around a different side of the tailings storage waterbody.
  • the flexible pipe is extendable for at least 50 metres in its unwound state.
  • the flexible pipe is buoyant and, even when filled with slurry, floats on the tailings storage waterbody.
  • the vehicle comprises a screw-propelled vehicle
  • the drive comprises at least one Archimedes screw, preferably an Archimedes screw on each of opposing sides of the vehicle.
  • the vehicle comprises a hovercraft.
  • a method for depositing free- draining slurry particles to create a drainage pathway in a tailings storage waterbody comprising: (i) moving an amphibious vehicle over the surface of the waterbody from a side of the waterbody; (ii) receiving free-draining slurry via a universally coupled flexible pipe; (iii) splitting the free-draining slurry into each of a plurality of hydrocyclones; (iv) for each hydrocylone, splitting the received free- draining slurry into: (a) a high solids concentration portion and (b) a low solids concentration portion; (v) discharging the high solids concentration portion in front of the vehicle to start or continue the drainage pathway; (vi) discharging the low solids concentration portion to one or both sides of the amphibious vehicle; and (vii) moving the vehicle over the waterbody at a rate allowing deposition of a drainage pathway in the tailings storage waterbody in front of the vehicle to a surface of
  • the step of (vii) moving the vehicle over the waterbody may comprise (vii) moving the vehicle back to the side of the tailings storage waterbody from which it started while discharging the high solids concentration portion in front of the vehicle so that the high solids concentration portion is left behind the vehicle as it moves back to the side of the tailings storage waterbody from which it started.
  • the rate allowing deposition of a drainage pathway may be a rate at which the discharged free-draining slurry solidifies as the drainage pathway.
  • apparatus for depositing layers of slurry over a relatively large surface area of a tailings storage waterbody, the apparatus comprising: (i) a floating platform; (ii) at least one drive coupled to the floating platform for moving the floating platform over the surface of the waterbody; (iii) a plurality of hydrocyclones mounted on the floating platform so that the underflows from the hydrocyclones discharge away from the floating platform and onto the waterbody; (iv) a feed manifold mounted on the floating platform and having: (a) a plurality of outlets, each outlet feeding one of the plurality of hydrocyclones, and (b) at least one inlet for coupling to a flexible pipe wherein the single inlet includes a joint having multiple degrees of freedom; wherein the floating platform is operable to discharge tailings over the surface of the tailings storage waterbody as it moves thereon, thereby accelerating deposition of a layer of tailings.
  • the relatively large surface area optionally comprises over 1000 square metres, over 10,000 square metres, or over 100,000 square metres.
  • the floating platform includes a global positioning system to allow for autonomous movement of the floating platform over the surface of the waterbody.
  • the plurality of hydrocyclones are inclined at a non-zero degree angle to the vertical.
  • the plurality of hydrocyclones are located at, or directed towards, a front or the sides of the floating platform.
  • the single inlet for the feed manifold is located at a rear of the floating platform.
  • the feed manifold is connected to a roll of flexible pipe located at one side of the tailings storage waterbody.
  • the roll of flexible pipe is coupled to a tailings spool that conveys tailings from a mine site.
  • a spool distributor is coupled to the tailings spool and is operable to split the tailings from the mine site into a plurality of perimeter pipes, each perimeter pipe (i) including a flexible pipe coupling at a distal end from the spool distributor, and (ii) extending around a different side of the tailings storage waterbody.
  • the flexible pipe is extendable for at least 50 metres in its unwound state.
  • the flexible pipe is buoyant and, even when filled with slurry, floats on the tailings storage waterbody.
  • the floating platform comprises a screw-propelled vehicle
  • the drive comprises at least one Archimedes-type screw.
  • the drive comprises an Archimedes-type screw on each of opposing sides of the floating platform.
  • apparatus for depositing free- draining slurry particles to create drainage pathways in a tailings storage waterbody, the apparatus comprising: (i) a free-draining slurry spool; (ii) a low permeability slurry spool for depositing low permeability slurry into the tailings storage waterbody; and (iii) an amphibious vehicle according to the first aspect coupled to the free-draining slurry spool.
  • the free-draining slurry spool has a flanged end that is coupled to a roll of flexible pipe.
  • the flexible pipe has a fixed end that is coupled to the flanged end, and an extendible end that can be unwound from the pipe.
  • the low permeability slurry spool is coupled to a hose that projects over a sidewall of the tailings storage waterbody so that it ejects the low permeability slurry into a fluid storage area thereof.
  • free-draining slurry spool is selectively fed from one of: a first free- draining slurry from a coarse gangue rejection process unit based on synthetic (foam based) flotation; and a second free-draining slurry from a coarse particle flotation process unit.
  • FIG. 1 is a simplified schematic side view of a tailings storage facility (TSF) including an amphibious vehicle in accordance with an embodiment of the invention
  • FIG 2 is a simplified schematic plan view of the TSF of Figure 1
  • Figure 3 is a simplified schematic diagram showing the amphibious vehicle of Figure 1 in more detail
  • Figure 4 is a simplified schematic diagram illustrating part of the amphibious vehicle of Figure 3 (the control centre) in more detail
  • Figure 5 is a simplified schematic side view of a tailings storage facility (TSF) of Figure 1 in which a drainage pathway has been deposited by the amphibious vehicle
  • Figure 6 is a simplified schematic plan view of the TSF of Figure 5, illustrating the drainage pathway deposited by the amphibious vehicle operating in forward mode
  • Figure 7 is a simplified schematic plan view of the TSF of Figure 1, illustrating the drainage pathway deposited by the amphibious vehicle operating in reverse mode
  • reference numeral 10 indicates a TSF having sidewalls 12a,b,c,d surrounding a fluid storage area 14.
  • One of the sidewalls 12a is closest to a pair of slurry pipes 20, 22 (best seen in Figure 2) extending from a minerals processing plant (not shown).
  • Each of the slurry pipes 20, 22 comprises a spool having a flanged end.
  • One slurry spool 20 (the free-draining slurry spool) conveys free-draining slurry from a coarse particle flotation (“CPF”) unit output (not shown) at the minerals processing plant.
  • CPF coarse particle flotation
  • the free-draining slurry spool 20 has a flanged end 24 that is coupled to a roll 25 of flexible pipe 26 located on the nearest sidewall 12a.
  • the flexible pipe 26 has a fixed end 30 that is coupled to the flanged end 24, and an extendible end 32 (that can be unwound from the pipe 26).
  • the pipe 26 comprises non-metallic piping such as that sold by the Baker Hughes Company (see, for example, https://www.bakerhughes.com/company/energy-forward/piping-flexible-
  • the flexible pipe 26 has a diameter of approximately to enable a mass flow rate of up to 400 tonnes per hour to be achieved.
  • a typical output from a medium sized mine concentrator e.g.
  • a CPF unit typically receives particles in the size range from approximately 250 ⁇ m to 400 ⁇ m. This means that those particles rejected from the CPF for tailings are also in that size range. This ensures that the uniformity coefficient (“Cu”), which is the ratio of the 60% finer size (D60) to the 10% finer size (D10), of those particles is typically less than 3.0, and in this embodiment is less than 2.5.
  • the other slurry spool 22 (the low permeability slurry spool, also referred to as the concentrate slurry spool) conveys low permeability slurry from a concentrator (not shown) output at the minerals processing plant. The concentrator receives particles in the size range of below approximately 150 ⁇ m.
  • the low permeability slurry spool 22 also has a flanged end 34 that is coupled to a hose 36 (or another spool). A distal end (the concentrate slurry exit) 38 of the hose 36 projects over the sidewall 12a so that it ejects the low permeability slurry into the fluid storage area 14 of the TSF 10.
  • the flexible pipe roll extendible end 32 is coupled to an amphibious vehicle 40.
  • the amphibious vehicle 40 is used for depositing the free-draining slurry particles from the free-draining slurry spool 20 into the fluid storage area 14 of the TSF 10 to create a drainage pathway 42 (best seen in Figure 3) therein.
  • the amphibious vehicle 40 comprises: a platform 44 (which may comprise a buoyant, floating platform in preferred embodiments); and at least one drive 46 coupled to the platform 44 for moving the platform over part of the drainage pathway 42 or over the surface of the waterbody in the fluid storage area 14.
  • the drive 46 comprises an Archimedes- type screw 46a,b on each of opposing lateral sides of the platform 44.
  • the amphibious vehicle 40 further comprises: at least one hydrocyclone 50 mounted on a forward portion 52 of the platform 44.
  • a plurality of hydrocyclones 50 are used, such as three hydrocyclones 50a,b,c.
  • Each hydrocyclone 50a,b,c is configured to have a cut size significantly below the lowest particle size.
  • the size range of particles in the slurry conveyed by the free-draining slurry spool 20 is approximately 250 ⁇ m to 400 ⁇ m, so the cut size may be selected at 150 ⁇ m.
  • Suitable hydrocyclones include the CAVEX (trade mark) range of hydrocyclones available from The Weir Group PLC (www.global.weir).
  • Each hydrocyclone 50a,b,c has (a) an underflow 54 for directing discharges of free-draining slurry in front of the platform 44 to start or continue the drainage pathway 42, and (b) an overflow 56 for directing liquid to one or both sides of the drainage pathway 42.
  • the reason that the underflow 54a,b,c is used to start or continue the drainage pathway 42 is that because the cut size is selected significantly below the particle size range, almost all of the particles report to the underflow 54a,b,c. Similarly, only water from the slurry reports to the hydrocyclone overflows 56a,b,c.
  • the hydrocyclones 50a,b,c therefore efficiently separate the water from the particles in the slurry conveyed by the free-draining slurry spool 20.
  • the overflows 56b,c from two of the hydrocyclones 50b,c are coupled and fed out via an overflow conduit 58 to one lateral side of the vehicle 40, which in this embodiment is the side at which the second (or left side) Archimedes-type screw 46b is located.
  • the overflow 56a from hydrocyclones 50a is fed out to the opposite (right) lateral side of the vehicle 40, which in this embodiment is the side at which the first (or right side) Archimedes-type screw 46a is located.
  • each hydrocyclone 50 is inclined at a non-zero angle to the vertical.
  • each hydrocyclone 50 is inclined at an angle of approximately 90 degrees to the vertical, with the underflows 54a,b,c projecting over a front end of the platform 44.
  • the amphibious vehicle 40 further comprises: a feed manifold 60 mounted on the platform 44.
  • the feed manifold 60 has: at least one outlet 62 (in this embodiment there are three outlets 62a,b,c, each one feeding a hydrocyclone inlet 64a,b,c of a respective hydrocyclone 50a,b,c).
  • the feed manifold 60 also has at least one inlet 66 for coupling to the extendible end 32 of the flexible pipe wherein the inlet 66 includes a joint 68 having multiple degrees of freedom (a universal joint in this embodiment).
  • the amphibious vehicle 40 also includes a control centre 70 for navigating and moving the vehicle 40 across the TSF fluid storage area 14 or the drainage pathway 42.
  • the universal joint 68 allows the amphibious vehicle 40 to move in multiple directions and to rise and fall depending on the height of the drainage pathway 42 over which it travels.
  • Figure 4 is a schematic diagram illustrating the control centre 70 in more detail.
  • the control centre 70 includes: a conventional GPS transponder 72; a plurality of proximity sensor inputs 74 (each associated with a proximity sensor (not shown), some of which are mounted at the edges of the platform 44 and optionally some mounted on an underside of the platform 44); drive controllers 76 for actuating the Archimedes-type screws 46a,b; a steering controller 78 operable to move the vehicle 40 in any desired direction in response to the GPS transponder 72 and the proximity sensor inputs 74; and a remote control interface 80 operable to receive control signals from a remote computer (not shown) to override the autonomous movement of the vehicle 40, if desired.
  • the control centre 70 includes processors, memory, storage, and wireless communication to facilitate autonomous navigation and movement of the vehicle 40.
  • the control centre 70 is operable to move the vehicle 40 around the TSF fluid storage area 14 based on GPS information and signals from the proximity sensors.
  • the vehicle 40 is operable to discharge free-draining slurry through the hydrocyclone underflows 54 as it advances (or reverses) and is operable to move over the drainage pathway 42 as it is being formed.
  • the vehicle 40 is operable to move over the discharged free-draining slurry before solidification thereof to create (or extend) the drainage pathway 42.
  • the vehicle 40 deposits free-draining slurry through the hydrocyclone underflows 54 as it reverses towards the sidewall 12a.
  • the hydrocyclone overflows 56a,b,c eject essentially water (because the cut size is significantly below the particle size range of the free-draining slurry particles in the slurry conveyed by the free-draining slurry spool 20.
  • This ejected water mixes with the low permeability (concentrate) slurry deposited into the TSF fluid storage area 14 from the concentrate exit 38 of the hose 36.
  • the rate at which the drainage pathway 42 is created (or heightened) depends on the volumetric flow rate of the free-draining slurry through the flexible pipe 26 and into the inlet 66 of the feed manifold 60.
  • the diameter of the flexible pipe 26 is selected as 200 mm and the slurry pumps (not shown) that pump the free- draining slurry through the free-draining slurry spool 20 are selected to have a flowrate of approximately 580 litres per second.
  • Suitable pumps include high pressure centrifugal pumps (such as the WARMAN (trade mark) HTP pump) or positive displacement pumps (such as the GEHO (trade mark) range of pumps, available from The Weir Group PLC (www.global.weir).
  • FIG. 5 is a simplified schematic side view of a TSF 10 in which the drainage pathway 42 has been deposited by the amphibious vehicle 44 across the entire length of the TSF 10.
  • Figure 6 is a simplified schematic plan view of the TSF 10 shown in Figure 5.
  • the TSF 10 includes a drain pipe 82 extending from a far end (opposite end at which the free-draining slurry spool 20 is located) of the drainage pathway 42, under (or through) the far sidewall 12c, and terminating in a fluid outlet 84.
  • the amphibious vehicle 40 may be instructed (via the remote interface 80) to build another drainage pathway (a drainage pathway spoke 92) starting from partway along the original drainage pathway 42 to a sidewall 12d adjacent to the sidewall 12c.
  • Another drain pipe (not shown) is provided where the drainage pathway spoke 92 meets the sidewall 12d. Additional drainage pathway spokes may also be provided, as needed or desired.
  • the amphibious vehicle 40 may travel over the dry land or the tailings mixture 86 enables a new drainage pathway spoke 92 to be deposited in any desired location. Furthermore the amphibious vehicle 40 may be used to raise the height of the existing drainage pathway 42 or any drainage pathway spoke 92 to keep level with any increase in depth of the tailings mixture 86. As best seen in Figure 7, the amphibious vehicle 40 may be operated in reverse mode, in which the amphibious vehicle 40 advances into the waterbody 14 without depositing any drainage pathway, and reverses the platform 44 while depositing a drainage pathway 42b in front of the forward portion 52 of the platform 44 such that the vehicle 40 does not travel over the newly deposited drainage pathway 42b. Additional drainage pathway spokes may also be provided, as needed or desired.
  • the amphibious vehicle 40 may travel over the dry land or the tailings mixture 86 enables a new drainage pathway or a new drainage pathway spoke to be deposited in any desired location.
  • the amphibious vehicle may be based on different propulsion technology than screw propellers, for example, air propulsion (such as a hovercraft) or the like.
  • the configuration of the TSF 10 may differ from that described above. For example, it may have a different shape, and more or fewer sidewalls.
  • a tailings distributor may be coupled to the spool 20.
  • the tailings distributor is operable to split the free-draining slurry and direct the flows into a plurality of perimeter pipes, each perimeter pipe (i) including a flexible pipe coupling at a distal end from the tailings distributor, and (ii) extending around a different side (e.g. around sidewalls 12a,b,c,d) of the TSF fluid storage area 14.
  • each perimeter pipe (i) including a flexible pipe coupling at a distal end from the tailings distributor, and (ii) extending around a different side (e.g. around sidewalls 12a,b,c,d) of the TSF fluid storage area 14.
  • the slurry pumps (not shown) that pump the free- draining slurry through the free-draining slurry spool 20 may be selected to have a flowrate of approximately 100 litres per second.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Sludge (AREA)

Abstract

L'invention concerne un véhicule amphibie pour déposer des particules de suspension autodrainante afin de créer un trajet de drainage dans une masse d'eau de stockage de résidus. Le véhicule amphibie comprend : (i) une plateforme flottante ayant au moins un entraînement ; (ii) au moins un hydrocyclone monté sur une partie avant de la plateforme, chaque hydrocyclone ayant (a) une sousverse pour diriger des décharges de suspension autodrainante devant la plateforme afin de démarrer ou poursuivre le trajet de drainage, et (b) un trop-plein pour diriger un liquide vers un côté du trajet de drainage ; et (iv) un collecteur d'alimentation monté sur la plateforme et ayant : (a) au moins une sortie, chaque sortie alimentant l'un desdits hydrocyclones, et (b) au moins une entrée destinée à être couplée à un tuyau flexible, l'entrée comprenant une articulation ayant de multiples degrés de liberté.
PCT/IB2024/062383 2023-12-08 2024-12-09 Dépôt de résidus Pending WO2025120613A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US202363607928P 2023-12-08 2023-12-08
US63/607,928 2023-12-08
AU2024900367A AU2024900367A0 (en) 2024-02-16 Tailings deposition
AU2024900367 2024-02-16

Publications (1)

Publication Number Publication Date
WO2025120613A1 true WO2025120613A1 (fr) 2025-06-12

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ID=94083151

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2024/062383 Pending WO2025120613A1 (fr) 2023-12-08 2024-12-09 Dépôt de résidus

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WO (1) WO2025120613A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2173533A1 (fr) * 1996-04-04 1996-10-25 N. Holl Preparation de rebuts industriels en vue du stockage et installations de gestion de tels rebuts
US20170259633A1 (en) * 2016-03-08 2017-09-14 Copperstone Technologies Ltd. All-terrain vehicle
US10052637B2 (en) 2014-01-02 2018-08-21 Eriez Manufacturing Co. Material processing system
WO2020183309A2 (fr) 2019-03-08 2020-09-17 Anglo American Services (Uk) Ltd Dépôt de déchets
CN111719622A (zh) * 2020-06-06 2020-09-29 安徽米徽环境科技有限公司 一种新型绞吸船及两栖底泥处理平台
US11642679B2 (en) 2017-02-28 2023-05-09 Cidra Corporate Services Llc Process configurations to prevent excess regrinding of scavengering concentrates
WO2023203525A1 (fr) * 2022-04-22 2023-10-26 Anglo American Technical & Sustainability Services Ltd Procédé et structure d'installation de stockage de résidus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2173533A1 (fr) * 1996-04-04 1996-10-25 N. Holl Preparation de rebuts industriels en vue du stockage et installations de gestion de tels rebuts
US10052637B2 (en) 2014-01-02 2018-08-21 Eriez Manufacturing Co. Material processing system
US20170259633A1 (en) * 2016-03-08 2017-09-14 Copperstone Technologies Ltd. All-terrain vehicle
US11642679B2 (en) 2017-02-28 2023-05-09 Cidra Corporate Services Llc Process configurations to prevent excess regrinding of scavengering concentrates
WO2020183309A2 (fr) 2019-03-08 2020-09-17 Anglo American Services (Uk) Ltd Dépôt de déchets
CN111719622A (zh) * 2020-06-06 2020-09-29 安徽米徽环境科技有限公司 一种新型绞吸船及两栖底泥处理平台
WO2023203525A1 (fr) * 2022-04-22 2023-10-26 Anglo American Technical & Sustainability Services Ltd Procédé et structure d'installation de stockage de résidus

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