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Collahuasi, Chile - SMC Testing

99.85% accurate throughput forecast model achieved using SMC Test. Compañía Minera Doña Inés de Collahuasi SCM (Collahuasi) is co-owned by Anglo American plc (44%), Glencore (44%) and Japan Collahuasi Resources B.V. (12%). It is situated in Chile and is one of the largest copper operations in the world, producing over half a million tonnes ...


のについて - JOGMEC

(kt) Collahuasi Cu(%) Collahuasiのと 1998、は2.0%から、20051%を 1998、Ujina 2001、Pebble crusher をSAG mill(2)に (60kt/d) 2004,Rosario (110kt/d)


Outotec successfully completes a major …

Outotec oversaw all the major maintenance for the ML-1012 ball grinding mill at the Cordillera mine, where its trunnion and liner trunnion were replaced. Included in the service work was the planning, engineering, construction, preparations, and execution of the project, all conducted under strict quality and safety control.


Machinery Failure - Gilmore Engineers Pty Ltd

SAG Mill Bearing Failure. Both main bearings on a SAG Mill at a cement factory suffered a catastrophic failure. In addition to analysing data on the service life of the bearings, our engineer inspected the SAG Mill and the failed bearings. Our engineer also performed Finite Element Analysis (FEA) to investigate the design of the bearings and ...


The Selection and Design of Mill Liners - MillTraj

Mill linings, Weir Rubber Engineering, Salt Lake City, UT 84126, United States of America . ABSTRACT . Dramatic shortcomings of mill liner designs, especially of large SAG mills, - such as rapid failure and even mill shell damage arising from …


SAG MILL DISCHARGE SCREENS-TROMMEL vs. …

SAG MILL DISCHARGE SCREENS-TROMMEL vs. VIBRATING ... After that failure, which occurred after about six or seven years, we had ... we heard this morning, is using a trommel with conveyors and a crusher. Collahuasi has a trommel and Escondida, on some of their lines, has trommels.


Grinding Mills - Mill Evaluation - Farnell-Thompson

24' x 10', 3,200 hp SAG mill for Lone Tree, USA. 22' x 36', 12,000 hp ball mill for Collahuasi, Chile*. 20' x 34', 8,500 hp ball mills for Lac-des-Iles, Canada. 16'6" x 29', 4,500 hp ball mill for Twin Creeks, USA. * under sub-contract to FFE Minerals Inc. Some mills recently refurbished under the direction of Farnell-Thompson:


Collahuasi - Mucho más que Cobre

In 2019 Collahuasi achieved a historical production of copper of 565 thousand tons, equivalent to 9,8% of the total production of Chile. Educational Foundation. 30 educational establishments in the Tarapacá region are …


Major Mines & Projects | Collahuasi Mine

- 3 SAG mills and 4 ball mills with sequential flotation (3 lines) - 36 rougher cells 127m3 & 24 300m3 - 27 cleaner cells 127m3& 27 160m3 - 190km pipeline carries slurry to Punta Patache where molybdenum concentrate and moisture are extracted.


Summit 40

Bienvenido / Welcome. Summit 40' de ME Elecmetal, es el encuentro anual de molinos SAG que conecta a un grupo de especialistas de diversas partes del mundo dedicados a compartir experiencias, desafíos y conocimientos con otros apasionados por …


Geometallurgical Modelling of the Collahuasi Grinding ...

SAG KW Ball Mill P (KW) Pebble Crusher P80 JKSimMet Simulation Bond Equation tph tph T80 1.-The instantaneous throughput was increased for each iteration. 2.-SAG Mill was simulated using JKSimMet. For each iteration, the SAG mill power draw, total load and transfer size were recorded as shown in the table below. 3.-


Benchmarking: Ball Mill Power Draw Models - …

Benchmarking: Ball Mill Power Draw - Fimiston. Nelson, M; Valery, W; Morrell, S, Performance Characteristics and Optimisation of the Fimiston (KCGM) SAG Mill Circuit, Page 233 - 248, SAG 1996 Conference, Vancouver, Canada. model predicts 7% low with no density correction and 0.8% high with density correction.


Check this out: 21 years of Collahuasi mining in 21 ...

According to the latest life-of-mine plan, the Collahuasi mine has a current mine life from 2020 to 2070. The mine was estimated to contain total measured and indicated resources of …


Ring-geared mill drives - Grinding | ABB

Mill application features. Frozen charge protection – Detects frozen charge in the mill, minimizing equipment wear and liner replacements.; Coupling supervision – Detects if a failure or slippage occurs in the couplings and stops the system in …


Wear and Failure Analysis of Semi-Autogenous Grinding …

The wear and failure analysis of shell liners of a grinding mill is investigated. Metallurgical and tribological studies were conducted on the worn liner of a semi-autogenous grinding mill in Chadormalu Industrial Complex. The chemical analysis, wear mechanism, microstructural variations and mechanical properties in different sections of the worn liner were …


SAG mill Archives - International Mining

The SAG mill has a mill diameter of 24 ft (7.3 m) and an effective grinding length of 18.5 ft and a structural charge mass of 315 t, Condor Gold said. The structural design ball charge is 11% with a structural design load volume of 35%. Specific gravity of the material is 2.55.


SAG MILLS OPTIMIZATION: IMPLEMENTATION AND …

• Antamina´sSAG mill has the worst condition of slurry evacuation in trommel: α = 222 m 3/h/m 2 • Esperanza and Escondida´sSAG mills have high values of α, but they have a screen • Trommel of 40 feet SAG mill of Collahuasi has an high value of α = 172 m 3/h/m 2. Open Pulp Free Flow by Free SAG 1011 Area, % Flow, m 3/h Area, m 2 Area ...


Industrial Solutions Project Brief - ABB

ABB also provided Collahuasi with drives and ring motors for one SAG mill and two ball mills. Powerful ABB gearless drives, rated at 15.5 mega-watts each, drive two eight-meter (26 feet) diameter ball mills that grind small pieces of ore at eleven revolutions per minute. However, the plant's showpiece is the world's largest gearless mill drive.


Analyst & Investor Presentation November 2018

• Collahuasi is located in the Region of Tarapaca in Northern Chile • The operation is located in the high Andes between 3,000 and 5,000 metres above sea level just 10km from the border with Bolivia • Our port facilities are located at Punta Patache which is close to 200km from the minesite and 70km to the south of the city of Iquique 5-


Geometallurgical Modelling of the Collahuasi Grinding …

JKSimMet is proprietary software and could not be easily integrated with the Collahuasi block model software. To overcome this problem a series of simulations of the SAG mill circuit were run in which the throughput was incrementally varied and the power draw and SAG mill circuit product size (so-called transfer size P80 or T80 for short) recorded.


Performance characterisation of AG/SAG mill pulp lifters ...

Abstract. The pulp lifter is an integral component of autogenous (AG) and semi-autogenous (SAG) grinding mills as it controls the throughput, performance and efficiency of mills. The slurry transport from the AG/SAG mill through grate holes into the discharge trunnion is the main function of the pulp lifter. This process develops complex flow ...


Olympic Dam Svedala Mill - BHP

13 February 2015. On 28 January 2015 the Svedala mill, part of BHP Billiton's Olympic Dam surface processing operations in South Australia, suffered an electrical failure and was safely placed in the maintenance position. A complete diagnostic review was undertaken and revealed damage to the motor stator coil. The repair and remediation plan ...


Semi-autogenous grinding (SAG) mill liner design and ...

operation of SAG mills. SAG mills are currently the technology of choice in hard rock milling operations for reducing primary-crushed ore to ball mill feed. In recent years, the trend has been towards larger-sized SAG mills with diameters of 10.4 m (34 ft) and above, with the largest being 12.2 m (40 ft) in


The Siemens 42ft gearless mill drive, still an ...

tural failure. The gap between the model and the real sys-tem is usually closed by prototype testing, however this is not an option for a 42ft Gearless Mill Drive. The ring motor is not self-supported and needs the mill to fix the rotor poles to and it needs the mill foundation to support the stator. Finally you would need a few thousand tons ...


FATIGUE FAILURE AND TESTING METHODS - Theseus

Fatigue Failure and Testing Methods 3 1 INTRODUCTION A perusal of the broken parts in almost any scrap will show that a high number of fail-ures occur at stresses below the yield strength of the part`s materials.


Performance characterisation of AG/SAG mill pulp lifters ...

1. Introduction. AG and SAG mills of 12–23 MW power draw are at the forefront of size reduction for mineral extraction in most of the mining operations around the world.The pulp discharge mechanism, consisting of a grate and pulp lifter arrangement, is …


SAG Mill Grinding Circuit Design - 911metallurgist.com

SAG Mill Bearing Failure. Both main bearings on a SAG Mill at a cement factory suffered a catastrophic failure. In addition to analysing data on the service life of the bearings, our engineer inspected the SAG Mill and the failed bearings. Our engineer also performed Finite Element Analysis (FEA) to investigate the design of the bearings and ...


Collahuasi Improves the Availability of its VPA Filter by ...

Collahuasi Improves the Availability of its VPA Filter by 15%. The project was carried out at Collahuasi's mine in northern Chile, about 180 km southeast of the port of Iquique, at an altitude ...