sag mill pinion drive
ABB Library
Paper held at SAG Conference 2011 - By S. Gaulocher (ABB), K.S. Stadler (ABB), Th. von Hoff (ABB), R. Veldsman (ABB), A. Fuerst (ABB) and J. Koponen (ABB): Gearless mill drives (GMDs) are the workhorse in the mineral processing industries, more specifically when it comes to grinding crushed ore and cement (in various production stages) in …
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Mount Milligan mill drives
tion with ABB's new low-speed dual-efficiency and availability were made by ABB, pinion RMDs. Operating at speeds as low as 175 whose solution comprises a 23.5 MW …
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will design and supply the world's largest SAG Mill …
has been selected to design and supply a 42 ft x 25 ft, (12.8m x 7.6m) 28 MW gearless SAG mill, plus two 26 ft x 42 ft, (7.9m x 12.8m) 15.6 MW ball mills and two VTM-1500-WB VERTIMILLS ® for Newmont Mining Corporation's Yanacocha Conga copper-gold project in Peru. The 42 ft diameter SAG mill is the world's largest and is the first of its kind.
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AN UPDATED DATA SET FOR SAG MILL POWER MODEL …
A data set of mill operating data is collected from published information and compared to predictions made by two published mill power draw models for SAG mills (Austin's SAG model and Morrell's C-model). A third model (Hogg and Fuerstenau) is fit to each survey and the principal fitting parameter is tabulated. Power measurement
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SAG mill drive train modernization at OK Tedi Mining in …
The report outlines the path Siemens and OK Tedi Mining undertook together from - the initial stages of the drive train Audit in 2014 to - the subsequent definition of the scope and reasons for ...
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Gearless mill drives
• 28 MW GMD for a 40' SAG mill • 28 MW GMD for 42' SAG mill Whether it is size or an installation at the highest altitude (4600 m.a.s.l.), ABB's GMDs are well positioned to contribute to the building of larger and ever more powerful mills. — Leading the gearless mill drive evolution The ABB gearless mill drive (GMD) is the most powerful ...
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Gearless mill drives
The gearless mill drive eliminates ring-gear, pinion, gearbox, coupling, motor shaft and motor bearings, used within a conventional mill drive system. By mounting the rotor …
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Choosing a SAG Mill to Achieve Design Performance
Provide a motor with the capability to deliver design power on a continuous basis by including a suitable service factor, usually 15% to cover any drive losses and …
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Mount Milligan mill drives
SAG mill and two 26 ft ball mills, all made by . The drive systems that enable the mills to operate at benchmark levels of reliability, efficiency and availability were made by ABB, whose solution comprises a 23.5 MW gearless mill drive (GMD) for the SAG mill, and two 13 MW low-speed dual-pinion ring-geared mill drive (RMD) systems for the ...
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Milling
The mills are typically single quadrant application. Some are designed for running in both directions. Depending on the mill power and the network strength 12- or 24-pulse diode rectifier configurations or active front end drive are used. In case of a dual pinion mill two single drive or a multidrive configuration is available.
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Mill drive selection for semiautogenous grinding mills
SAG mill drives. There are two types of SAG mill drives. Power is transmitted to the grind-ing mill either through a pinion and ring.
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SAG Mill | Autogenous and Semi-Autogenous Mills
The QdX4TM Mill Drive provides the next step in the evolution of change in mill drive architecture, while allowing the system to be built with components that are within …
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TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS …
Single-pinion and dual-pinion fixed-speed gear drives offer a relatively simple design. However, process flexibility and optimization ... operating cost and reduce availability of ball and SAG mills. Options for variable speed are DC motors, energy recovery ... The first Gearless Mill Drive (GMD) with a power of 6.5 MW was
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GIRTH GEAR
Elastic mill sag by weight of mill balls and materia! to grind A: After temporary alignment of the teeth of pinion and girth gear with the mill empty, Fig. 8a, re-alignment should be undertaken with the mill filled with mill balls, i. e. with reference to the elastic sag in cold con- dition, Fig. 8b.
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COPPER MOUNTAIN: OVERVIEW ON THE GRINDING …
The Copper Mountain SAG mill is 10363 mm [34 feet] in diameter and 6096 mm [20 feet] long. It is a grate discharge mill with an inside diameter of 10363 mm [34 feet] and a …
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Used Ball & Sag Mills for Sale | Mining in Washington
Find new and used Grinding Mills - Ball, Pebble, Sag, Mining for sale near you in Washington. Allis-Chalmers, Hardinge, , Denver and more. go to top ... - 8.6 x 13.5 ft mill shell (3.2 x 5.6 m), - Trunnion supported ball mill, - Ring and pinion gear drive, - Mill drawings available, - 450 HP WEG motor (340 kW), - 575V, 60 Hz, 3 Ph, - 1800 ...
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Used Ball & Sag Mills for Sale | Mining | Surplus Record
Search a huge mining inventory of used ball, pebble, sag, and grinder mills for sale today! Allis-Chalmers, , Hardinge and more! All sizes and horse powers.
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QdX4TM Mill Drive system
2 d4 TM Mill Drivesystem 7 MW 7 MW 14 MW 28 MW 7 MW 4 MW 7 MW 7 MW 7 MW 4 MW 7 MW 7 MW SAG mill 32 ft. single drive The natural progression in gear/pinion mill drives: The QdX4TM Mill Drive provides the next step in the evolution of change in mill drive architecture, while allowing the system to be built with components that are …
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Gears and pinions
A complete range of gear and pinion sets, inspections, design, installation and alignment services to drive your mill's performance Introducing a new name Outotec is proud to announce the launch of our new rebranded offer: Outotec Gears and Pinions. You can expect the same quality supported by decades of gearing and OEM expertise.
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COPPER MOUNTAIN: OVERVIEW ON THE GRINDING …
SAG mill, ball mill, ring gear, dual pinion, drive systems, variable speed INTRODUCTION The project is located 15 km southwest of Princeton, British Columbia (BC), an established ... Mountain has selected the state-of-the-art dual pinion mill drive systems, providing numerous advantageous features which were previously exclusively available on ...
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Ring gear drives huge grinding mill
With inside dimensions of 36-ft diam. and 19-ft long, this semi-autogenous grinding mill (SAG — see next section) will use a 43-ft diam. ring-gear drive to transmit 18,000 hp and handle up to ...
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Drive Solutions for the Global Mining Industry
drive application is a dual-pinion SAG mill driven by two 5,000 kW wound rotor induction motors (WRIM). Two TMdrive-10SPRs control motor speed by recovering rotor current and returning the power to the utility supply. Confi gured in a twin motor arrangement, the motors share load in the tandem mill. The Customer Need
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Ring-geared mill drives
New Human Machine Interface - RMD Cockpit. With the RMD plus solution, operations and maintenance activities are fully optimized with the newly developed Human Machine Interface "RMDcockpit".. Based on ABB's 800xA platform, the RMDcockpit is a specific mill application tool comprised of a touch screen panel allowing full access to the main …
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Gearless mill drives
Our GMD eliminates all mechanical components of a conventional mill drive system, such as ring-gear, pinion, gearbox, coupling, motor shaft and motor bearings: By mounting the rotor poles directly onto the mill, the …
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Uneven SAG Mill Drive Power Draw
Differences between drives power draw of two drives sag mills. In a double drive/pinion SAG, we face different power draw between each drives. Can this be caused by charge motion or some others process problem? Maya Rothman. 9 years ago. Maya Rothman 9 years ago. Like.
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Choosing a SAG Mill to Achieve Design Performance
109 Inverness Drive East, Suite F Englewood, Colorado 80112 ... SAG mill is an investment that can produce handsome returns if extra production is needed or ... Test No. Lab SAG Test Cum. Dist.% Pinion kWh/t of Ore . 1 3.59 5 2 6.13 15 3 7.00 25 4 7.51 35 5 7.88 45 6 8.12 55 7 8.41 65 ...
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WEG successfully tests dual-pinion ball mill drive
The products are part of an important order for electric motor drives for eighteen ball mills and semi-autogenous grinding (SAG) mills with dual and single pinions. Autogenous grinding means that the mining ore essentially grinds itself. Such ball mills are used for grinding and crushing mining ore within a large rotating drum.
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Innovative Gear Drive Solution for Grinding …
Both the SAG mill and ball mill are each driven by two gear units. Because, on a conventional drive variant, only one engagement per pinion with the girth gear is possible per side, an economic power limit of about …
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How to install and align the girth gear and pinion | prmdrive
The cost of edge drive is low, but the pinion needs to be replaced every 2-5 years. Edge drive is mainly used in coal mills and mills with small power. The girth gear(big ring gear) and pinion are the key of the edge transmission device. Their reliable operation is directly related to the stable production of the mill.
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Mill drives: the desire for increased power and the
secondary mill power that permits the range of vari- ability samples to be processed according to whether a "SAG Mill limiting" condition, i.e., harder ore, or a "Ball Mill limiting" condition, i.e., softer ore exists. For example, a ratio of 1:1.5 or up to 1:2 would indicate a trend away from processing harder ore types and
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