collahuasi sag mill failure

The arrival of Siemens low speed dual-pinion mill drives ...

collahuasi sag mill failure - theihope.org. collahuasi sag mill failure. ... for power converters based on SCR cells using a new flotation mechanism design at Collahuasi concentrator". a SAG mill"; Pontt, J., …

Optimisation of Slope Angles at Rosario Mine, Collahuasi ...

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.

luis_magne.pdf | Mill (Grinding) | Industrial Equipment

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 …

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Collahuasi sag mill failure - Manufacturer Of High-end . Collahuasi Sag Mill Failure hopetrustcoza. collahuasi sag mill failure ninanscollege Sag Mill Pinion Failure mayukhportfoliocoin Sag Mill Pinion Failure, it is, a technical failure on its SAG mill in 2008 It was, for ball mill installation Collahuasi Mine Component Failure Get Support Online .

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Collahuasi Mine Component Failure Analysis Ball mill repair support ... Ball Mill Gear Failure Analysis Analysis of SAG mill motor drive failures Regrind Mill Refurbishment Project management, inspection and technical services for refurbishment of used ball mill Oceanagold (Philippines), Inc. ...

collahuasi sag mill failure

In 2001, ABB received an order comprising drives and ring motors for one SAG mill and two ball mills. In the same year ABB also won a contract for electrical equipment for a large-scale conveyor system, consisting of rising and downhill belts and storage facilities, where supplied five 2 …

Electrical equipment for Collahuasi | ABB

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.

Machinery Failure - Gilmore Engineers Pty Ltd

Benchmarking: Ball Mill Power Draw - Collahuasi. Villouta, R.M., Collahuasi: After years of operation, Proceedings of the International Autogenous and Semiautogenous Grinding Technology conference (SAG 2001), Vancouver, Canada, Pages I-31 – I-42

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

What probability of failure or reliability? The Rosario Open Pit has a history of failure, poor quality rocks and high pore pressures. It was decided to deepen the pit below the programmed design to test the practicality of different design approaches, which if successful, could be used to improve the economics of mining at Collahuasi.

Collahuasi sag mill failure - Manufacturer Of High-end ...

Sep 10, 2014· The failure of the Collahuasi motor was catastrophic and it occurred within months of commissioning. The Collahuasi motor was for a 40 ft SAG mill. The Antamina 38 ft SAG mill was also driven by an ABB motor and the hanger plates had not failed …

Rubicon Minerals Corp: SAG Mill First Run Phoenix Gold ...

SAG mill, Ball mill, Locked charge, drop charge, frozen charge, Liquid Resistance Starter, LRS, Figure 2 is an actual example of a safe start-up For the first part of the start-up, the graph is at 45°, while the charge has not tumbled and the ore angle is therefore the same as the mill angle At 63°, the ore.

SAG MILL DISCHARGE SCREENS-TROMMEL vs. VIBRATING …

Collahuasi Sag Mill Failure hopetrustcoza. collahuasi sag mill failure ninanscollege Sag Mill Pinion Failure mayukhportfoliocoin Sag Mill Pinion Failure, it is, a technical failure on its SAG mill in 2008 It was, for ball mill installation Collahuasi Mine Component Failure Get Support Online . Oline Chat

(PDF) Developments in AG / SAG mill modelling

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.

Insurability of Large Gearless Mill Drives (GMDs)

The ore body is classified into six so-called UGM units and the SMC Test is used extensively in describing the SAG mill hardness variability in each of these units within a time horizon of up to 5 years. The approach adopted by the Collahuasi engineers was to develop relationships between grinding circuit throughput and ore hardness and final ...

Collahuasi magnifies machine learning value - Mining Journal

Collahuasi Mine Component Failure Analysis Ball mill repair support ... Ball Mill Gear Failure Analysis Analysis of SAG mill motor drive failures Regrind Mill Refurbishment Project management, inspection and technical services for the refurbishment and installation of used ball mill.

(PDF) Developments in AG / SAG mill modelling

The so-called variable rates model (Morrell and Morisson, 1996) was used to simulate SAG mill performance and model parameters were fitted using data from surveys of the circuit undertaken in 2006.

Collahuasi, Chile - SMC Testing

collahuasi sag mill failure - theihope.org. collahuasi sag mill failure. ... for power converters based on SCR cells using a new flotation mechanism design at Collahuasi concentrator". a SAG mill"; Pontt, J., …

SAG MILL DISCHARGE SCREENS-TROMMEL vs. VIBRATING …

Jul 08, 2015· As part of the improvement efforts, the mining company contacted for the manufacturing and mounting of a new chute with four outputs for a 10' x 11' SAG mill. Pleased with the good results and the fact that all deadlines were met without any accidents, Doña Inés de Collahuasi soon decided to order three more chutes from for ...

sag mill ring gear failure - ME Mining Machinery

Sep 28, 2014· Therefore, the Collahuasi and Antamina SAG mill stators would not have required replacement so early in their operational lives had ABB had used parallel windings with VPI insulation. So, is a 24 h repair cycle for relatively low frequency failures of a VPI windings more important than other design features such as lower loads in the stators ...

Insurability of Large Gearless Mill Drives (GMDs)

Mill Capacity Open SAG Plant Diameter, feet Diameter, feet Long, feet Screen tph Wide, mm Long, mm Area, % C.M.D.I. Collahuasi 32 14,4 13,6 No 1.320 15 30 …