Design of the 40 foot SAG Mill Installed at the Cadia Gold

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 …

SAG MILL DISCHARGE SCREENS-TROMMEL vs VIBRATING …

1 INSURABILITY OF LARGE GEARLESS MILL DRIVES L Bos1 M van de Vijfeijken2 and J Koponen2 1Zurich Services Corporation Schaumburg USA IL 60196 2ABB Switzerland Ltd Segelhofstrasse 9 P Baden-Daettwil Switzerland CH-5401 Corresponding author maarten vijfeijken ch abb com

NAME CHRISTOPHER MEIMARIS Managing Director EAnD

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

The World s 20 Largest Copper Mines - The Balance

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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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 …

Collahuasi improves the availability of it s VPA filter by

Nov 08 2016· ABB Motor Gearless Mill Drive GMD System OS 2015 123 COLLAHUASI MOLINO SAG REV 03 - Duration CHINA MADE WITH ROOT CAUSE ANALYISIS OF FAILURE - Duration 13 37 Subodh Soni 8 807 views

Collahuasi The original SAG mill liner design Hi Hi with a

NAME CHRISTOPHER MEIMARIS Current Position Managing Director EAnD World s Largest SAG Mill Gearless Drive and Failure Analysis of Ball Mill Gears Page 2 of 6 some of the largest in the world including the Collahuasi SAG and ball mills 40 ft and 26 ft respectively and the 40 ft AG mill …

SAG Mill Success—Start with the Basics - womp-int com

• 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

SAG MILLS OPTIMIZATION IMPLEMENTATION AND …

collahuasi sag mill failure OS 2015 123 COLLAHUASI MOLINO SAG REV 03 - Feb 11 2016· OS 2015 123 COLLAHUASI MOLINO SAG REV 03 Eduardo Barrales Abt Subscribe Subscribed Unsubscribe 13 13 Contactar al proveedor JUAN CARLOS CASTRO MORA

Engineering Project History - A Boughey Pty Ltd

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

2009 Gearless Mill Drives - CB MUA

Sep 24 2018· Funcionamiento de un molino Sag que corresponde al que se encuentra en funcionamiento en la minera doña Inés de collahuasi que se encuentra en la región de Tarapacá a 200 km aproximadamente

SAG Mill Success—Start with the Basics - womp-int com

collahuasi sag mill failure - contenttauscheu collahuasi sag mill failure copper ball mill repairs eduioncarein A Sag mill is most often used in the mining fields Collahuasi Glencore Notes on a Mill Gear Failure It is a 55m 18ft diameter x 85m Chat Now sag mill …

Literature Review Gearless Motor Failures A Mill

collahuasi sag mill failure - ecole-ethe-saint-mardbe twin ball mill pinion SAG mill ball mill ring gear Grinding Mills CITICHeavy Industries Co Ltd CITIC HIC manufacture a full range of Grinding Mills for the 2m x 11m 28MW II84 FAILURE ANALYSIS OF BALL MILL GEARS by Contact Supplier

Collahuasi Copper Mine - Mining Technology Mining News

Collahuasi copper mine is situated in northern Chile about 180km southeast of the port of Iquique at an altitude of 4 000m The The mine is 44 -owned by Xstrata plc following its acquisition of Falconbridge Ltd in 2006 in joint venture with Anglo American 44 and a Japanese consortium 12 comprising Japan Collahuasi Resources BV Mitsui Co Ltd Nippon Mining Metals Co Ltd and

Report Collahuasi claiming US$160mn for faulty mill

Gearless Mill Drives Machinery Risk Solutions Practice 2009 Matt Dugalic P Eng MARSH MRSP Risk Consultant VP Kurt Tischler Dipl -Ing Siemens …

SAG MILLS OPTIMIZATION IMPLEMENTATION AND …

Aug 14 2017· Collahuasi improves the availability of it s VPA filter by 15 Collahuasi was the third-largest copper operation in the world and has one of the largest deposits of mineral resources of

liners increased uptime of discharge chutes at

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

Wear and Failure Analysis of Semi-Autogenous Grinding Mill

Design and Implementation of Advanced Automatic Control Strategy Based on Dynamic Models for High Capacity SAG Mill Iván Yutronic Collahuasi

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• 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

sag mill ring gear failure grinding mill china - santhosa nl

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

ABB Motor - Gearless Mill Drive GMD System - YouTube

Abstract 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

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The design of the 40-foot diameter SAG mill installed at the Cadia Gold Mine New South Wales Australia followed after two years of extensive SAG mill base power was estimated from pilot

Design of the 40 foot SAG Mill Installed at the Cadia Gold

sag mill ring gear failure grinding mill china collahuasi sag mill failure - arpainternationalin 911 Metallurgist 17 Mar 2017 used sag mill for copper sale sag mill ring gear failure moinho sag usado bate-papo on-line monitoramento de condição efffective para o moinho sag

Grinding Mills - Mill Evaluation - farthom com

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 General refurbishment of SAG and ball mill …

2009 Gearless Mill Drives - CB MUA

Chile s Collahuasi copper mine will claim US$160mn from insurance to cover a technical failure at its main SAG mill in the country s largest ever insurance claim local paper El Mercurio reported

INSURABILITY OF LARGE GEARLESS MILL DRIVES - …

SAG Mill Success—Start with the Basics 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 the 21-MW gearless drive for the 40-ft

collahuasi sag mill failure - terrainvague nl

Advising the market on major mining losses including in relation to a furnace loss at the Koniambo nickel mine in New Caledonia and a SAG mill failure at the Collahuasi copper mine in Chile Services Energy

Geometallurgical Modelling of the Collahuasi Grinding

Jun 25 2019· The world s 20 largest copper mines produce nearly 9 million metric tons of the precious metal a year about 40 percent of the world s total copper mine capacity Chile and Peru alone account for about half of the copper mines on this list but the U S does make the cut with two mines among the top 20

Engineering and Project Management History

SAG Mill Success—Start with the Basics 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 the 21-MW gearless drive for the 40-ft

Chile Collahuasi copper mine set for strong 2008 - Reuters

collahuasi sag mill failure - ecole-ethe-saint-mardbe twin ball mill pinion SAG mill ball mill ring gear Grinding Mills CITICHeavy Industries Co Ltd CITIC HIC manufacture a full range of Grinding Mills for the 2m x 11m 28MW II84 FAILURE ANALYSIS OF BALL MILL GEARS by Contact Supplier