Customer case aboutsag mill dual pinion geared drive

sag mill dual pinion geared drive

Paper # 25 Copper Mountain Overview on the Grinding

DUAL PINION MILL DRIVES The SAG and the two ball mills are gear driven and Copper Mountain selected the sophisticated low speed dual pinion mill drives from ABB to drive these mills. Brief History Sophisticated Dual Pinion Mill Drive Technologies About five years ago, ABB was already the market leader for Gearless Mill Drives (GMD).

SAG mills (semi-autogenous grinding mills) TON

We are essentially providing up to twice the power transmission of a conventional dual pinion drive. Gearless mill drive (GMD) technology has further expanded the use of large SAG milling allowing TON to produce the world's largest SAG mill of 42’ in diameter drawing power at 28 MW.

TON QdX4™ Mill Drive TON

The TON QdX4™ Mill Drive features internal torque splitting capability transmitting motor input power to the pinion shaft and equally dividing into two mill pinions. This type of torque splitting gear box technology has been in operation since the early 1960’s.

An electrical impact study between variable speed dual

When mill power is between 18 and 20 MW, which is the current manufacturing limit of ring geared mills, either a gearless mill drive (GMD) or a ring geared mill with dual pinion motors can be chosen. Selecting between gearless or ring geared design is mostly dependent on size of the mill and power and speed requirements.

Ring-geared mill drives Grinding ABB

If in the past single pinion mills were enough to process all material, today dual pinion or gearless driven mills are necessary. Not only the mill equipment was adapted to exceed its technical and performance limits.

Increasing availability through advanced Gearless Drive

Figure 1 Top view of SAG mills with alternative drive options; left side: dual pinion drive including motor, gearbox, pinion and girth gear; right side: gearless ring motor Declining ore grades, leading to increased material transport and plant throughput requirements, are one of the

Autogenous and Semi-Autogenous Mills FLSmidth

Our mills use conventional geared drives for transmitting up to 18,000 kW of power by use of a twin pinion system. Depend on years of proven reliability and productivity We’ve been producing the highest quality SAG and AG Mills since the 1980s.

SAG Mill Components Mineral Processing & Metallurgy

Once the basic operating conditions have been defined for the mill designer then, and only then, can he begin taking into account shell and head stresses and trunnion bearing sizes required to carry the load and to give the required openings for feeding and discharging the mills. Mill heads are key structural components of any grinding mill. They must carry the load of the shell assembly

An electrical impact study between variable speed dual

When mill power is between 18 and 20 MW, which is the current manufacturing limit of ring geared mills, either a gearless mill drive (GMD) or a ring geared mill with dual pinion motors can be chosen. Selecting between gearless or ring geared design is mostly dependent on size of the mill and power and speed requirements.

Increasing availability through advanced Gearless Drive

Figure 1 Top view of SAG mills with alternative drive options; left side: dual pinion drive including motor, gearbox, pinion and girth gear; right side: gearless ring motor Declining ore grades, leading to increased material transport and plant throughput requirements, are one of the

Autogenous and Semi-Autogenous Mills FLSmidth

Our mills use conventional geared drives for transmitting up to 18,000 kW of power by use of a twin pinion system. Depend on years of proven reliability and productivity We’ve been producing the highest quality SAG and AG Mills since the 1980s.

STEPPING FORWARD: USING VARIABLE SPEED DRIVES FOR

The grinding circuit consists of one SAG mill (Ø6.7m) and one ball mill (Ø6.1 m), both single pinion gear driven and designed and delivered by Outotec. The contractor opted for the highspeed solution with gearbox for both the SAG and the ball mill.

Pinion Drive Sag Mill mayukhportfolio.co.in

1 COPPER MOUNTAIN: OVERVIEW ON THE GRINDING MILLS ball mills. The installation and commissioning of the mills and drives at Copper SAG mill, ball mill, ring gear, dual pinion, drive systems, variable speed.

The arrival of Siemens low speed dual-pinion mill drives

Feb 07, 2017 Logistic challenge: New stage goal. The arrival of the low speed dual-pinion mill drives for Collahuasi Copper Mine, Chile Siemens Mining industry...

Drive Solutions for the Global Mining Industry

The variable frequency 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.

Gearless mill drives miningweekly

GMDs are used on the larger ball and semi-autogenous grinding (SAG) mills, where power transfer through the con- ventional gearbox, pinion and girth gear drivetrain becomes the limiting factor.

Grinding circuit for Mount Milligan mine ABB

1 x 23.5 MW gearless mill drive system (GMD) to power the 40 ft SAG mill ; 2 x 13 MW low-speed dual pinion ring-geared mill drive systems (RMD) to power the plant's 26 ft ball mills; Both drive solutions share many common operation and maintenance features such as frozen charge protection, frozen charge remover, controlled rollback, automatic

SAG Mill Components Mineral Processing & Metallurgy

Once the basic operating conditions have been defined for the mill designer then, and only then, can he begin taking into account shell and head stresses and trunnion bearing sizes required to carry the load and to give the required openings for feeding and discharging the mills. Mill heads are key structural components of any grinding mill. They must carry the load of the shell assembly

TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS MILL

been used. Single-pinion and dual-pinion fixed-speed gear drives offer a relatively simple design. However, process flexibility and optimization can only be achieved with variable speed drives. Furthermore, mechanical problems and maintenance for gearboxes increase operating cost and reduce availability of ball and SAG mills.

Increasing availability through advanced Gearless Drive

Figure 1 Top view of SAG mills with alternative drive options; left side: dual pinion drive including motor, gearbox, pinion and girth gear; right side: gearless ring motor Declining ore grades, leading to

ABB Commissions Dual-pinioned Mill Drives at Detour Lake

ABB’s supply scope included four dual-pinion low-speed mill drive systems for two SAG mills and two ball mills, each consisting of two synchronous motors, converter transformers and ACS6000 frequency converters. These include active rectifier units allowing the mill drives

Mill Pinion Gears David Brown Santasalo

Mill Pinion Gears Our high torque, high precision integral and non-integral mill pinions are used in SAG, horizontal ball mill and rotary kiln applications across the globe. Supplied as an individual component or as a fully optimised system comprising a girth gear, mill drive gearbox, pinion and barring drive

STEPPING FORWARD: USING VARIABLE SPEED DRIVES FOR

The grinding circuit consists of one SAG mill (Ø6.7m) and one ball mill (Ø6.1 m), both single pinion gear driven and designed and delivered by Outotec. The contractor opted for the highspeed solution with

Pinion Drive Sag Mill mayukhportfolio.co.in

1 COPPER MOUNTAIN: OVERVIEW ON THE GRINDING MILLS ball mills. The installation and commissioning of the mills and drives at Copper SAG mill, ball mill, ring gear, dual pinion, drive

A Mechatronic Solution Design and Experience with Large

via a mechanical drive train with single or dual pinion and girth gear. This solution reaches its economic and design limits with increasing drive sizes. Today mills are powered by up to 20,000 kW (Figure 1)

Gearless mill drives miningweekly

GMDs are used on the larger ball and semi-autogenous grinding (SAG) mills, where power transfer through the con- ventional gearbox, pinion and girth gear drivetrain becomes the limiting factor.

TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS MILL

been used. Single-pinion and dual-pinion fixed-speed gear drives offer a relatively simple design. However, process flexibility and optimization can only be achieved with variable speed drives. Furthermore, mechanical problems and maintenance for gearboxes increase operating cost and reduce availability of ball and SAG

TECHNICAL How to Spec a Mill Gear Power & Transmission

single- or dual-motor configurations. In this type of application, the pinion is mounted on pillow blocks driven by a low-speed motor or a motor and en-closed gear drive. The gear is mounted on the mill

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