Engineering and Project Management History

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.

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A novel approach to the geometallurgical modelling of the

Having related SAG mill throughput to SAG mill power and the ball mill circuit P 80, the data was then reduced to a series of curves representing the relationship between the SAG mill specific power consumption (S.P.C.), which is the SAG mill power draw divided by throughput, and the ball mill P 80 for each UGM. Fig. 3 shows the six resulting

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UPDATE 1-Chile Collahuasi to boost '08 copper output 20

Feb 25, 2008 · Collahuasi output slowed in early 2007 after a major SAG mill, or grinding mill, was shut for 46 days for repairs. The time taken to repair the mill, the largest of three grinding circuits at the

Chile Collahuasi copper mine set for strong 2008Reuters

Feb 25, 2008 · Collahuasi output slowed in early 2007 after a major SAG mill, or grinding mill, was shut for 46 days for repairs. The time taken to repair the mill, the largest of three grinding circuits at the

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2009 Gearless Mill DrivesCB&MUA

marsh.ca marsh Gearless Mill Drives Machinery Risk Solutions Practice 2009 Matt Dugalic P.Eng., MARSHMRSP Risk Consultant, VP Kurt Tischler Dipl.-Ing., Siemens

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SAG Mill Success—Start with the Basics

SAG mill breakdowns are costly events for producers. As an example, early in 2006, Cia. Minera Doña Ines de Collahuasi had to make temporary repairs on the drive on the largest and newest of its three SAG mills at the Collahuasi copper mine in northern Chile, and then in mid-January 2007, finally began full replacement of the motor stator on

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Insurability of Large Gearless Mill Drives (GMDs)

Sep 28, 2014 · Introduction. We have written on risk associated with large ring motors in gearless mill drives previously [1, 2, 3]. In [1], we observed that ABB and Polysius were far too confident in 2001 when they claimed that 42 and 44 ft diameter mills and ring motors posed only manageable risks and that a 44 ft mill and GMD design was ready and waiting for a purchaser [4].

prof pontt collahuasi sag millMinevik

prof pontt collahuasi sag mill prof pontt collahuasi sag millcampodefiori Diese Seite übersetzen

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2009 Gearless Mill DrivesCB&MUA

marsh.ca marsh Gearless Mill Drives Machinery Risk Solutions Practice 2009 Matt Dugalic P.Eng., MARSHMRSP Risk Consultant, VP Kurt Tischler Dipl.-Ing., Siemens

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(PDF) Developments in AG / SAG mill modelling

Developments in AG / SAG mill modelling. Ore hardness values are provided by Collahuasi's block model which has been populated with ore characterisation data derived from Bond ball work

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Case StudyGrinding Mill Bearing Failure

Jul 31, 2013 · The mill normally operates at 3,150 rpm. 1.Outboard Motor Bearing Legend 2 board Motor Bearing 3 board Mill Bearing* 4.Outboard Mill Bearing * Bearing that was failing. The mill rotor bearings, which are mounted in a steel housing, are two (2) cylindrical roller bearings, NU 316 ECM/C3, and one (1) grooved ball bearing, SKF 6316 C3.

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Prof Pontt Collahuasi Sag MillAluneth Heavy Machinery

We have prof pontt collahuasi sag mill,prof pontt collahuasi sag mill International Journal of Engineering Research and Applications Prof Vijaya Sugandhi Determination of Energy Produced By Wind Mill on Running Vehicle » More molinos sag codelco anahtarlikkamera molinos sag codelco molino sag chuquicamata La mina chilena de cobre Collahuasi reanudó 6027

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SAG Mill Liners BreakageGrinding & Classification

In any case, pebble crushing works, though metal in the SAG mill pebbles is a significant problem for crushing. Especially if your ore is also magnetic as ours is. In 1992 National Steel Pellet Company published a paper at SME that compared a normally fed SAG mill circuit with a fully autogenous circuit equipped with pebble crushing.

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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

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Case StudyGrinding Mill Bearing Failure

Jul 31, 2013 · The mill normally operates at 3,150 rpm. 1.Outboard Motor Bearing Legend 2 board Motor Bearing 3 board Mill Bearing* 4.Outboard Mill Bearing * Bearing that was failing. The mill rotor bearings, which are mounted in a steel housing, are two (2) cylindrical roller bearings, NU 316 ECM/C3, and one (1) grooved ball bearing, SKF 6316 C3.

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Causes Of Instability In Sag Milling

Causes of instability in sag milling causes of ins ility in sag milling the collahuasi failures were cause by sag mill parts the possible causes of technical failure at its main sag mill in the countrys largest ever insurance free quot. Burly mining sag ball mill grinding ball

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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

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Case StudyGrinding Mill Bearing Failure

Jul 31, 2013 · The mill normally operates at 3,150 rpm. 1.Outboard Motor Bearing Legend 2 board Motor Bearing 3 board Mill Bearing* 4.Outboard Mill Bearing * Bearing that was failing. The mill rotor bearings, which are mounted in a steel housing, are two (2) cylindrical roller bearings, NU 316 ECM/C3, and one (1) grooved ball bearing, SKF 6316 C3.

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Literature Review Gearless Motor FailuresA Mill

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

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AUTOMATION ADVANCED CONTROL EXPERT (ACE)

DOÑA INÉS DE COLLAHUASI 7 SAG MILL ACE 8 SUCCESS STORY ANTOFAGASTA PLC MINERA LOS PELAMBRES 9 THICKENER ACE 10 FLOTATION ACE 11. 3 Operational manager Optimization with ACE 1 BrainWave was installed to control the SAG mill weight, solids percentage and ore feed tonnage, and to limit SAG mill sound emissions.

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Prof Pontt Collahuasi Sag MillAluneth Heavy Machinery

We have prof pontt collahuasi sag mill,prof pontt collahuasi sag mill International Journal of Engineering Research and Applications Prof Vijaya Sugandhi Determination of Energy Produced By Wind Mill on Running Vehicle » More molinos sag codelco anahtarlikkamera molinos sag codelco molino sag chuquicamata La mina chilena de cobre Collahuasi reanudó 6027

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SAG MILL DISCHARGE SCREENS-TROMMEL vs. VIBRATING

SAG MILL DISCHARGE SCREENS-TROMMEL vs. VIBRATING Tony Moon, RTZ What I'd like to talk about is probably one of the nastiest bits of mill design for a grinding circuit, and that is the choice of what do you use on a SAG mill discharge? Do you use vibrating screens or trommel screens? What many of you probably don't realize is that at

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Ring-geared mill drivesGrinding ABB

Mill application features. Frozen charge protectionDetects frozen charge in the mill, minimizing equipment wear and liner replacements. Coupling supervisionDetects if a failure or slippage occurs in the couplings and stops the system in case, preventing major damages. Stand-still detectionPrevents the motors from re-starting if the mill is still rocking or moving after a stop

SAG MILL DISCHARGE SCREENS-TROMMEL vs. VIBRATING

SAG MILL DISCHARGE SCREENS-TROMMEL vs. VIBRATING Tony Moon, RTZ What I'd like to talk about is probably one of the nastiest bits of mill design for a grinding circuit, and that is the choice of what do you use on a SAG mill discharge? Do you use vibrating screens or trommel screens? What many of you probably don't realize is that at

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Benchmarking Ball Mill Power Draw ModelsSAGMILLING

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

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SAG and Ball MillsYouTube

Mar 12, 2015 · OS 2015 123 COLLAHUASI MOLINO SAG REV 03Duration 25 52. Eduardo Barrales Abt Recommended for you. Ball mill / sag mill shell ChangeTime laps filmDuration 2 57.

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prof pontt collahuasi sag millMinevik

prof pontt collahuasi sag mill prof pontt collahuasi sag millcampodefiori Diese Seite übersetzen

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Engineering&Project HistoryA Boughey Pty Ltd

32' x 14' SAG Mill Engineering Support Technical support for manufacture of mill heads and trunnions. Alcoa World Alumina Australia. Mill Replacement Study Inspection and study of options for repair or replacement of mill. Collahuasi Mine Component Failure Analysis Ball mill repair support

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A novel approach to the geometallurgical modelling of the

Having related SAG mill throughput to SAG mill power and the ball mill circuit P 80, the data was then reduced to a series of curves representing the relationship between the SAG mill specific power consumption (S.P.C.), which is the SAG mill power draw divided by throughput, and the ball mill P 80 for each UGM. Fig. 3 shows the six resulting

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Electrical equipment for Collahuasi ABB

The company operates the copper mine in Chile, which is the fourth largest in the world. The first order to monitor and control the mine's total production on-line Based on an Advant control system. In 2001, ABB received an order comprising drives and ring motors for one SAG mill and two ball mills.

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OS 2015 123 COLLAHUASI MOLINO SAG REV 03YouTube

Feb 11, 2016 · Build a 7.5 foot boat with 2 sheets of plywood -The Garage Engineer and Trail47Duration 18 08. TheGarageEngineer Recommended for you

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liners increased uptime of discharge chutes at

Jul 08, 2015 · liners increased uptime of discharge chutes at Collahuasi. 's redesign project of the discharge chutes at Compañía Minera Doña Inés de Collahuasi

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Failure Modes Of Grinding Millsliefsmarieke

failure modes of grinding mills 22790. grinding mill failure modes sdpgc. failure modes of grinding mills 22790 ast-seminareeu. Grinding Mill Failure Modes The grinding circuit consists of a SAG mill and two ball mills, Get Price Grinding Machinery Failure Analysis And Ppt. grinding mill failure

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The Siemens 42ft gearless mill drive, still an

next size Gearless Mill Drive, i.e. a 42ft mill. It is a dual design approach considering, on the one hand, the experi-ences Siemens made with Gearless Mill Drive (GMD) instal-lations over the past 40 years and, on the other hand, using computerized design tools calculating the system behavior where experience does not yet exist.

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OUTOTEC GRINDING TECHNOLOGIES

Outotec SAG and ball mill Outotec high-performance grinding mills use advanced simulation tools for the best possible process efficiency, mechanical reliability, and maintainability. Our mill range covers comminution applications.

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collahuasi sag mill failureericgrim

sag mill fault_collahuasi sag mill failure sag mill faultchichacharleroibe. economic life of sag mill it was identified there was an insulation anomaly in the rotor which exposed the business to the risk of. Get Price. outotec ball mill fitter whitehillstree. Read More

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Mill (grinding)Wikipedia

SAG is an acronym for semi-autogenous grinding. SAG mills are autogenous mills that also use grinding balls like a ball mill. A SAG mill is usually a primary or first stage grinder. SAG mills use a ball charge of 8 to 21%. The largest SAG mill is 42' (12.8m) in diameter, powered by a 28 MW (38,000 HP) motor.

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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

SINGLE STAGE SAG/AG MILLING DESIGN

SINGLE STAGE SAG/AG MILLING DESIGN ABSTRACT Single stage semi-autogenous / autogenous (S/AG) milling has become a common design for a variety of ore types with the advantages of being comparatively low capital cost and flexible for future expansion. The single stage

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SAG MILL DISCHARGE SCREENS-TROMMEL vs. VIBRATING

SAG MILL DISCHARGE SCREENS-TROMMEL vs. VIBRATING Tony Moon, RTZ What I'd like to talk about is probably one of the nastiest bits of mill design for a grinding circuit, and that is the choice of what do you use on a SAG mill discharge? Do you use vibrating screens or trommel screens? What many of you probably don't realize is that at

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