40 ft cadia sag mill

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Cadia SAG Mill motor and ball mill gears Cadia GMD Stator: Preface The remedial design of the stator of the gearless mill drive (GMD) of the 40 ft SAG mill at Cadia Hill was …

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

ABSTRACT. 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 laboratory and pilot …

ft cadia sag mill

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Design of the 40 foot diameter SAG mill installed at the Cadia …

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 laboratory and pilot plant testwork. This showed the Cadia ores to be hard and competent necessitating the use of both a variable speed mill drive and pebble crushing. The grinding power requirements were …

(PDF) What can go wrong in comminution circuit design?

predictions for 40 ft SAG mills that are unrealistically high. ... The design of the 12m diameter SAG mill installed at the Cadia Hill Mine in New South Wales followed after two years of extensive ...

Adapting Mill Control to Account for Liner Wear on the Cadia 40ft Mill

"As the Cadia mill was the first 40ft diameter SAG mill, commissioned in 1998, its performance, liner and discharge design attracted considerable international attention. Twelve years on, the liner design and the control philosophy are being readdressed to further improve the mill's performance. A comprehensive series of 3D …

Design of the 40 foot diameter SAG mill installed at …

Engineering, Geology. 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 laboratory …

Design of The 40 Foot Diameter SAG Mill Installed at The Cadia …

Design of the 40 Foot Diameter SAG Mill Installed at the Cadia Gold Copper Mine, R. Dunne - Free download as PDF File (.pdf), Text File (.txt) or view presentation slides online. paper

Optimisation of the Cadia Hill Sag Mill Circuit

CADIA HILL SAG MILL CIRCUIT S. Hart (1), W. Valery (2) ... 13% ball charge and 30% total volume to be 20.96MW for the 40 foot diameter SAG mill. In practice this power draw was never achieved I-14

NOVEL COMMINUTION MACHINE MAY VASTLY …

the 2006 modification was successful in upgrading the Cadia 40 ft. SAG mill with longer liner life, improved throughput, and more efficient kW-h/t, the upgrades fell short of the 40 ft mill's potential. Figure 1 shows the Cadia 565 mm high lifters. The liner height and pitch needed to be increased further to realize this potential.

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

parameters chosen for the Cadia SAG mill are shown the following table. Table 2 : Cadia SAG Mill Design Parameters Diameter – inside liners (m) (ft) 12.04 40

Optimisation of the Cadia Hill SAG mill circuit

THE CADIA HPGR-SAG CIRCUIT – FROM DESIGN TO …

The Cadia Mine again leads process design with the first truly hybrid HPGR-SAG circuit upgrading the circuit that had the world's first forty foot SAG Mill. The hybrid approach addresses the ...

ft40 ft cadia sag mill

40 ft cadia sag mill crusherquartzcrusher Siemens supplied the first gearless drive for a 40foot SAG mill at the Cadia Hill Mine in Australia While the details vary, there is a theme that links Request Quotation This is a problem with most SAG mill circuits (Cadia's rate varies from M T R Design of the 40 Ft Diameter Sag Mill Description The ...

II-100 II-101 INTRODUCTION

The Cadia concentrator is the largest concentrator in the southern hemisphere. It employs the world's largest SAG mill, 40 ft diameter and two 22 ft ball mills in the grinding circuit. In that project, the owners considered it necessary to assess the dynamic response of the foundations for the SAG and ball mills due to vibration problems

The evolution of the Cadia 40-foot SAG mill to treat the Cadia …

The Concentrator 1 plant at Cadia transitioned from Cadia Hill open pit to the Cadia East block cave ore body in 2013. As a result of this change, major plant upgrades were required to achieve the desired throughput while treating more competent ore. The 40-foot (40') SAG mill now receives a feed of predominantly high pressure …

The evolution of the Cadia 40-foot SAG mill to treat the …

This significant reduction in feed size to the SAG mill has markedly changed the operating characteristics of the mill, which has been extensively studied since commissioning in …

list of 40 foot sag mills worldwide

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SAG Mill Grinding Circuit Design

Many large mills around the world (Esperanza with a 12.8 m mill. Cadia and Collahuasi with 12.2-m mills, and Antamina. Escondida # IV. PT Freeport Indonesia, and others with 11.6-m mills) have installed SAG mills of 20 MW. Gearless drives (wrap-around motors) are typically used for large mills, with mills of 25 MW or larger having been …

Major Mines & Projects | Cadia Hill Mine

Cadia Hill Stockpile Mine is located 22 km SW from Orange, New South Wales, Australia. ... (HPGR) unit treating screen undersize prior to the SAG mill; • Primary open circuit milling in a single 40-ft SAG mill fitted with a 20 MW motor. The motor will be upgraded to 22 MW.

Ø Effect of SAG Mill Feed Size Distribution and Ore …

CADIA HILL SAG MILL CIRCUIT S. Hart (1), W. Valery (2) ... 13% ball charge and 30% total volume to be 20.96MW for the 40 foot diameter SAG mill. In practice this power draw was never achieved I-14

Adapting Mill Control to Account for Liner Wear on the Cadia 40ft Mill

As the Cadia mill was the first 40ft diameter SAG mill, commissioned in 1998, its performance, liner and discharge design attracted considerable international attention. Twelve years on, the liner design and the control philosophy are being readdressed to further improve the mill?s performance. A comprehensive series of 3D liner scans, over …

Cadia GMD Stator: Observed Behaviour and Modelling

The Cadia SAG mill diameter is 40 ft and the ring motor that drives the mill is rated at 20 MW. In 1998 when the mill and motor were commissioned both were the largest machines of their type in the world. The stator exhibited vibration excursions that appeared to be related to the mill speed. We determined the mode shape of the vibration using ...

The evolution of the Cadia 40' SAG mill to treat the Cadia

Conference. Mill Operators 2018. The evolution of the Cadia 40' SAG mill to treat the Cadia East orebody – a case study of incremental change leading to …

Actual SAG Mill Operating Power | Download Table

Such plots for an example mill, the SAG mill at Cadia (described by Dunne et al., 2001) is shown in Figure 3. Motor speed, Hz Motor output power, kW "Knee point" is the lowest speed where power is ...

Siemens modernises SAG mill gearless drive in Cadia Valley

At the Cadia Valley Operations, Newcrest operates two underground mines and one open pit mine. Ore is processed to a heavily auriferous copper concentrate in a crushing, grinding and flotation circuit. This two-stage grinding circuit consists of a 40 ft SAG mill with a 20 MW Siemens gearless drive and two parallel 10 MW gear driven ball …

(PDF) Design of the 40 foot diameter SAG mill …

PDF | On Sep 1, 2001, R. Dunne and others published Design of the 40 foot diameter SAG mill installed at the Cadia gold copper mine | Find, read and cite all the research you need on...

On the comparison between measured and calculated stresses in large SAG

The Cadia SAG mill is 40 ft in diameter and the shell of the mill is 22 ft long between flanges. Strain gauges were applied to the Cadia mill at the locations shown in Fig. 2. The gauges were placed in similar locations to those on the Telfer mill but the feed end head gauges were omitted due to access restrictions during relining of the mill.

On the comparison between measured and …

The first mill is the Telfer 36 ft mill and the other is the Cadia 40 ft mill. Strain gauge data are available for these mills from tests performed in 2004 and 2005.

Performance Improvement at SAG Mill through Lining …

I have authored and co-authored 5 papers on liner redesign based on our modifications to the 40 ft Cadia SAG Mill. These papers were published in SAG 2001 and 2006. The modifications increased throughput by up to 6 %, reduced liner replacement by 47%, when you index total tons ground, and reduced liner change-out time by reducing the number …