Starter of SAG Mills with rotor resistance -

COPPER MOUNTAIN: OVERVIEW ON THE GRINDING MILLS AND THEIR DUAL PINION MILL DRIVES ABSTRACT This paper will first give a short overview of the Copper Mountain project in British Columbia, which just has started commercial operation earlier this year. The grinding process with one 34' x 20' SAG


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Choosing a SAG Mill to Achieve Design Performance

SAG mill itself and not on the test work program. Stated another way, money invested in a large SAG mill is an investment that can produce handsome returns if extra production is needed or simply to give the mine the option to mill the hardest ores at design throughput rates.

Speedy SAG Mill System Upgrade Minimizes Downtime Costs

grinding mills in the world. The contract comprises the design and manufacture of a Ø40'x29' SAG mill. The mill will be driven by a Gearless Motor Drive (GMD) which, at 28.0MW, is equal to the largest grinding mill power ever used in the mining industry. The SAG mill design is based on Outotec's proprietary grinding

Optimizing your SAG Mill | Mining Surplus

Some dry autogenous mills operating in Canada are 8.5 m in diameter and 1.5 m in length. These are known as Aerofall mills. The Cadia Hill (Australia) wet SAG mill is 12.2 m in diameter with a 20 MW motor and in 2004 was the largest diameter mill in operation in the world.

sag mill capacity - YouTube

The Intelligent Mill Liner Bolt. Up until now, SAG mill operations have lacked the means to intelligently determine mill liner replacements, other than the "blind" option of shutting down production, clearing the feed chute and doing a full, physical inspection of the mill lining and its wear depth.

Kinross Paracatu PAPER -

Sep 17, 2013· wound rotor motor is not the best option for SAG mills becuse the slip rings always are a problem even with liquid resistors.Best option is synchronuos motor in combination with variable frequency drive.However if you already have the wound rotor motor the ERS operation is simple.

Shell Liners & Head Liners | Steel and rubber options to ...

SAG is an acronym for Semi-Autogenous Grinding. SAG mills are autogenous mills but 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.

Autogenous mills, semi-autogenous mills and ball mills for ...

These factors when carefully considered can make a suitably sized Single stage SAG mill a viable option. It has been said by some that the SAG mill is the most forgiven piece of mineral processing equipment that one can have. Once installed it can be readily adapted to …

Preprint 13-050 -

Mill Type – available options to choose from are Autogenous (AG), Semi-autogenous (SAG) or Ball mills. When "AG" is chosen the ball filling option in the Contents Data window is automatically set to zero and cannot be changed. When "SAG" is chosen all input options are available. When "Ball" is

Mining Processing | TMEIC

Gearless AG/SAG mills. With the proven use of gearless drive technology, the limitation of AG/SAG mill size due to gearing constraints has been eliminated. is the world's leading supplier of gearless AG/SAG mills.


PDF | Kinross Paracatu and Process Technology and Innovation (PTI) have reviewed and optimized the operating strategies for the SAG mill circuit at Paracatu operation in Brazil. The focus of ...

Mill (grinding) - Wikipedia

Prodigy Gold testing confirms SAG milling option for Magino. ... Starkey recommends a conventional single line grinding circuit with one SAG mill followed by two ball mills in parallel, with total throughput of 17,500 t/d. The throughput can be expanded to 20,000 t/d with the addition of a single cone crusher. ... International Mining Team ...

Shell vs Trunnion-Mounted Mills -

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Improved mill control at Lihir Gold Mine in Papua New ...

123 PAPER 9 SAG Mill Operation at Cortez: Evolution of Liner Design from Current to Future Operations Julius Stieger1, Process Superintendent Dave Plummer2, Process Maintenance Planner Sanjeeva Latchireddi3, Chief Process Engineer Raj K. Rajamani4, Professor – Metallurgical Engineering 1Barrick - Cortez Gold Mines Star HC66 Box 1250

SAG Mill Grinding Circuit Design

Fuller-Traylor SAG/AG Mills range in size from 4.3m through 12.2m in diameter with powers as high as 28,000 kW. Our team of product engineers continually improves SAG/AG Mill designs in order to provide the most robust, safe, and efficient grinding mills available.


E&MJ reported in October 2010 (See "SAG Mill Gearless Drives Go to South American Projects,"p. 102) ABB Group's Minerals Division had won an order from Newmont Mining Corp. to engineer three gearless mill drive (GMD) systems to be installed at its Yanacocha Minas Conga oxide copper-gold project in …

Paper # 25 - Copper Mountain Overview on the Grinding ...

Feb 13, 2018· Learn how to calculate a Volume at different heights using CONTROL X for Sag and Ball Mills using View Clip and Enclosed Volume option. More information at: [email protected]

Gold extraction - QueensMineDesignWiki

Features of the Project: In order to maintain production plant during the SAG mill shutdown for change of stator, the Cia. Minera Antamina devised an alternative system that would make a By Pass in the milling process, leading SAG mill flow for feeding directly to the ball mills. The Bypass passes through three specific areas, area Tripper, Dry Sieve area and crusher and grinding area.

SAG Mill Operation at Cortez: Evolution of Liner Design ...

At the Lihir Gold Mine, the plant was utilizing mill's bearing pressure to calculate load measurement for the SAG mill in HGO1. The use of SAG mill weight for process control is additionally complicated at Lihir by compromised and suddenly drifting load cell and bearing pressure measurements on two of the process plant's three SAG mills.