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The Alegria mine.
The Alegria mine.
 Mine and concentration flowsheet.
Mine and concentration flowsheet.
 Pipeline route section.
Pipeline route section.
Concentration plant.
Concentration plant.
 A cross-section of the Guilman-Amorhim hydro plant.
A cross-section of the Guilman-Amorhim hydro plant.
 A map of the Muniz Freire hydro plant.
A map of the Muniz Freire hydro plant.
Location map of the Cerro Vanguardia mine.
Location map of the Cerro Vanguardia mine.
 Geologists examining core samples at the Cerro Vanguardia gold project in southern Argentina.
Geologists examining core samples at the Cerro Vanguardia gold project in southern Argentina.
 Overall site plan.
Overall site plan.
Mining equipment on-site.
Mining equipment on-site.
 The process flow diagram.
The process flow diagram.
 The processing plant at Cerro Vanguardia gold and silver mine in Argentina – designed with significant input from AATS.
The processing plant at Cerro Vanguardia gold and silver mine in Argentina – designed with significant input from AATS.
Location of Cerrejón coal mine.
Location of Cerrejón coal mine.
 Cerrejón is a multi-seam operation.
Cerrejón is a multi-seam operation.
 Ripping and dozing coal prior to loading.
Ripping and dozing coal prior to loading.
Loading coal with a LeTourneau front-end loader, into 154t-capacity Wabco hauler.
Loading coal with a LeTourneau front-end loader, into 154t-capacity Wabco hauler.
 Tipping coal into one of the primary crushers.
Tipping coal into one of the primary crushers.
 Coal seams are prepared for mining by cleaning the top of the seam.
Coal seams are prepared for mining by cleaning the top of the seam.
Each of the loadout silos has a capacity of 10,000t.
Each of the loadout silos has a capacity of 10,000t.
 Development of Cerrejón included construction of a dedicated rail line used to import supplies and export coal.
Development of Cerrejón included construction of a dedicated rail line used to import supplies and export coal.
 The Escondida open pit with the concentrator behind.
The Escondida open pit with the concentrator behind.
Loading ore in the pit.
Loading ore in the pit.
 Escondida’s truck fleet includes 47 Caterpillar 793B and 793C haulers.
Escondida’s truck fleet includes 47 Caterpillar 793B and 793C haulers.
 The Escondia concentrator, which has been expanded to handle 127,000t/d of ore.
The Escondia concentrator, which has been expanded to handle 127,000t/d of ore.
Grinding mills in the Escondida concentrator.
Grinding mills in the Escondida concentrator.
 Inside the concentrator.
Inside the concentrator.
 Concentrates are piped to Escondida’s port at Coloso.
Concentrates are piped to Escondida’s port at Coloso.
Map showing the location of Lomas Bayas and Fortuna de Cobre.
Map showing the location of Lomas Bayas and Fortuna de Cobre.
 P&H has also supplied a 100XP blasthole drill to Lomas Bayas.
P&H has also supplied a 100XP blasthole drill to Lomas Bayas.
 Open-pit mining at Lomas Bayas.
Open-pit mining at Lomas Bayas.
A P&H 2800XPB electric mining shovel, as used at Lomas Bayas.
A P&H 2800XPB electric mining shovel, as used at Lomas Bayas.
 The Fortuna de Cobre copper prospect.
The Fortuna de Cobre copper prospect.
 Leachable copper ore from Fortuna de Cobre.
Leachable copper ore from Fortuna de Cobre.
Some 45km from Cajamarca in northern Peru, at an altitude of 4,700m, Minera Yanacocha operates a complex of four gold mines and a processing facility. This was the first significant foreign investment in Peruvian mining for 20 years. The mine is located in the Peruvian Andes at an elevation of 14,000ft above sea level.
Some 45km from Cajamarca in northern Peru, at an altitude of 4,700m, Minera Yanacocha operates a complex of four gold mines and a processing facility. This was the first significant foreign investment in Peruvian mining for 20 years. The mine is located in the Peruvian Andes at an elevation of 14,000ft above sea level.
 A haul truck, part of the Minera Yanacocha fleet. The ore is transported 2.5km or more to the leach pads by the German contracting company Ed Zublin, using wheeled loaders and 85t-capacity trucks, and is heaped by stackers.
A haul truck, part of the Minera Yanacocha fleet. The ore is transported 2.5km or more to the leach pads by the German contracting company Ed Zublin, using wheeled loaders and 85t-capacity trucks, and is heaped by stackers.
 Since the Carachugo ore is porous, run-of-mine ore can be heap-leached without crushing. The initial heap was cyanide leached at a rate of 10 litres/h/m<SUP>2</SUP> into a 16,000m<SUP>3</SUP> pond and the solution treated in a Merrill Crowe plant.
Since the Carachugo ore is porous, run-of-mine ore can be heap-leached without crushing. The initial heap was cyanide leached at a rate of 10 litres/h/m2 into a 16,000m3 pond and the solution treated in a Merrill Crowe plant.
Zaldívar is 3,300m above sea level in northern Chile.
Zaldívar is 3,300m above sea level in northern Chile.
 The trucks from the mine discharge material into a dump pocket.
The trucks from the mine discharge material into a dump pocket.
 State-of-the-art electromechanical equipment is used in the mining process.
State-of-the-art electromechanical equipment is used in the mining process.
Acid used at Zaldívar arrives via railcars and is transferred to remote storage tanks.
Acid used at Zaldívar arrives via railcars and is transferred to remote storage tanks.
 The tertiary crushing plant, including stacking, is fully automated.
The tertiary crushing plant, including stacking, is fully automated.
 Schematic diagram of the production process.
Schematic diagram of the production process.
The ore is fed to the primary crusher by a Krupp variable-speed apron feeder.
The ore is fed to the primary crusher by a Krupp variable-speed apron feeder.
 Collahuasi lies in the far northeast of Chile, close to the border with Bolivia.
Collahuasi lies in the far northeast of Chile, close to the border with Bolivia.
 Collahuasi’s reserves are held in three main orebodies; Ujina and Rosario, and the smaller Huinquintipa oxide deposit.
Collahuasi’s reserves are held in three main orebodies; Ujina and Rosario, and the smaller Huinquintipa oxide deposit.
The open pit at Collahuasi.
The open pit at Collahuasi.
 The ore storage shed protects run-of-mine ore from dust generation before processing.
The ore storage shed protects run-of-mine ore from dust generation before processing.
 Sulphide ore is treated by flotation to produce concentrates for export.
Sulphide ore is treated by flotation to produce concentrates for export.
The oxide circuit flowsheet involves both leaching to recover the contained copper and electro-winning to produce copper cathodes.
The oxide circuit flowsheet involves both leaching to recover the contained copper and electro-winning to produce copper cathodes.
 Handling copper cathodes in the electro-winning plant.
Handling copper cathodes in the electro-winning plant.
 High-purity copper cathodes awaiting shipment at the electro-winning plant.
High-purity copper cathodes awaiting shipment at the electro-winning plant.
Antamina is high in the Andes, the orebody being partially covered with a lake.
Antamina is high in the Andes, the orebody being partially covered with a lake.
Cross-section through the Antamina deposit, showing the planned phases of mining.
Cross-section through the Antamina deposit, showing the planned phases of mining.
An overview of the ore-processing route at Antamina.
An overview of the ore-processing route at Antamina.
The Antamina concentrator contains the world's largest single-circuit milling plant.
The Antamina concentrator contains the world's largest single-circuit milling plant.
One of the mine's Bucyrus 495B shovels loading a Caterpillar 793 hauler in the open pit.
One of the mine's Bucyrus 495B shovels loading a Caterpillar 793 hauler in the open pit.
Contractor Spie Capag used a Tesmec trencher for cutting the trench for the concentrate pipeline alongside an existing highway.
Contractor Spie Capag used a Tesmec trencher for cutting the trench for the concentrate pipeline alongside an existing highway.
The milling section in the plant.
The milling section in the plant.
Loading concentrates at Punta Lobitos for export.
Loading concentrates at Punta Lobitos for export.
Rotary blasthole drilling in the open pit.
Rotary blasthole drilling in the open pit.
A P&H 4100 shovel loads Caterpillar 793B haulers in the open pit. Komatsu AC-drive haulers were also added to Radimiro Tomic's truck fleet during the expansion.
A P&H 4100 shovel loads Caterpillar 793B haulers in the open pit. Komatsu AC-drive haulers were also added to Radimiro Tomic's truck fleet during the expansion.
 MAN-Takraf supplied conveying equipment for handling crushed material both before and after leaching.
MAN-Takraf supplied conveying equipment for handling crushed material both before and after leaching.
 A purpose-designed bucket-wheel excavator is used to remove leached ore from the pads once the copper has been extracted.
A purpose-designed bucket-wheel excavator is used to remove leached ore from the pads once the copper has been extracted.
Solvent-extraction plant fluid streams are cleaned using Codelco-designed equipment.
Solvent-extraction plant fluid streams are cleaned using Codelco-designed equipment.
 External view of the electrowinning tankhouse showing the cell ventilation system…
External view of the electrowinning tankhouse showing the cell ventilation system…
 …and inside the tankhouse.
…and inside the tankhouse.
Radimiro Tomic's environmental centre, where Codelco is developing its reclamation planting strategies.
Radimiro Tomic's environmental centre, where Codelco is developing its reclamation planting strategies.
 Los Pelambres is located at an altitude of 3,200m in the mountains to the north of Santiago.
Los Pelambres is located at an altitude of 3,200m in the mountains to the north of Santiago.
The open pit at an early stage of development.
The open pit at an early stage of development.
The primary crusher at the mine, which feeds the main conveyor to the concentrator plant.
The primary crusher at the mine, which feeds the main conveyor to the concentrator plant.
The conveyor carries crushed ore some 24km to the concentrator, which is 1,300m lower than the mine.
The conveyor carries crushed ore some 24km to the concentrator, which is 1,300m lower than the mine.
The concentrator at Los Pelambres.
The concentrator at Los Pelambres.
The grinding mills used in the concentrator incorporate 12.6MW gearless drives supplied by Siemens.
The grinding mills used in the concentrator incorporate 12.6MW gearless drives supplied by Siemens.
The port of Los Vilos, where Los Pelambres concentrates are dewatered before being shipped to overseas smelters.
The port of Los Vilos, where Los Pelambres concentrates are dewatered before being shipped to overseas smelters.
Copyright Notice: Copyright for all images on this web site is held by the individual companies providing material for the site. Click on the image concerned to be taken through to the project, containing information on the company involved.


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