With DTC slave drive configuration technology load sharing can be estab-In dual-pinion mills, the system is driven lished in different ways and the most by more than one motor, …

According to the American Heritage Dictionary of the English Language, a spline is defined as: Noun: 1a) Any of a series of projections on a shaft that fit into slots on a corresponding shaft, enabling both to rotate together. 1b) The groove or slot for such a projection. 2) A flexible piece of wood, hard rubber, or metal used in drawing curves.

The 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. We have rearranged the drive architecture in order to apply high powered ...

The 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 …

In the 2×5MW dual-pinion ring-geared pebble mill example, one of the inverter units in the ACS 6000 drive is configured to be the "master" and receives the speed reference via the mill controller from the DCS. The other inverter unit is known as the slave and it follows the master drive's speed and torque refer-ence.

GE Power Conversion's solution consists of four low-speed synchronous (air-cooled) motors and MV7000 medium-voltage drives operating at 7,500 kilowatts on a …

In the past, grinding mills operating between 18 MW and 28 MW required a large electrical wrap-around motor, known as a Gearless Mill Drive (GMD). The QdX4 system has been developed as an alternative to GMDs. According to , the new system was tested for more than 3 million cycles at 28 MW (2 x 14 MW) with an input speed of 320 rpm, proving ...

In simple terms, it is the pinion's rotational force. It is given as: Rack and pinion torque equation 1. Where: T = torque on pinion (Nm) F r = Tangential force on the rack. r = radius of the pinion (m) Torque can also be calculated using: Rack and pinion torque equation 2. Where: d = diameter of the pinion (in millimeters) Pinion rotational ...

slurry and mill pumps, high pressure pumps for water lifting systems (desalination plants), etc. J Mill drive solutions such as low speed synchronous motors for single or dual pinion mill configurations, wound rotor motors with liquid rheostat starters and VFD driven squirrel cage induction motors. Mining is a fundamental activity that contributes

Once the expanded mill operations begin in 2015, production is expected to average 582,260 oz/y of gold and 29.1 Moz of silver for the next 10 years. ABB will deliver five dual pinion 2 x 9 MW low-speed mill drive systems for two 36 ft SAG and three 26 ft ball mills, and one dual pinion (2 x 5.5 MW) low-speed drive system for a regrind mill.

Go gearless to meet your business objetives by exceeding standard availability targets in your grinding operations. ABB's GMD is the most powerful mill drive system in the market to power semiautogenous (SAG), ball and autogenous (AG) mills, This 'workhorse' for grinding operations combines a robust, service-friendly and fit for purpose ...

PARIS---July 11, 2013---In a move that promises to improve efficiency and reliability while lowering emissions and saving money for the Angang Steel plant, GE's Power …

Price: $ 1,100,000.00. Description. GE Dual Pinion AG Ball Mill Electrical Drive System (NEW) Consisting of: (2) 7500 KW/ 10,000 HP, 180 RPM Synchronous Motors (Air …

mill drive (GMD) for the SAG mill, and two 13 MW low-speed dual-pinion ring-geared mill drive (RMD) systems for the ball mills. The GMD system consists of a 23.5 MW wrap-around motor, three cycloconverter transformers, an excitation transformer, a cycloconverter and the ABB control system for the mill and its auxiliaries. Each RMD system

ABB will deliver five dual pinion 2 x 9MW low-speed mill drive systems for two 36-foot ball mill 1200 rpm synchronous induction motor with liquid rheostat and dc field excitation to a dual pinion gear driven mill Get Price..ge dual pinion mill drive solutions - mantelzorgleiderdorp ge dual pinion mill drive solutions. SER Drive.

With this innovative concept the gearless mill drive eliminates all critical mechanical components inherent within a conventional mill drive system, such as ring gear, pinion, gearbox, coupling or air clutch, motor shaft and motor bearings. ... Variable speed drive solutions dedicated to single or dual pinion ring-geared mills offer significant ...

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.

Motor coordination and load sharing for dual pinion systems. Large dual pinion mills need coordinated operation between the two driving motors to maximize gear and mill life. …

GE's Quadramatic™ motor system has one of the highest efficiency levels for dual-pinion, fixed-speed mill applications. Compared to induction or gearless technologies, a 9,000-horsepower (HP) Quadramatic motor system consumes approximately 4.5 million kilowatts (kWh) less electricity per year, avoiding the emissions of ...

Leading power and automation technology group ABB has commissioned four low-speed dual-pinion drive systems at the Detour Lake gold mine in Ontario, Canada, according …

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, our pinions are manufactured ...

Dual pinion high-speed mill drive (with gearbox) and dual-pinion low-speed mill drive (without gearbox). By using the latest generation medium voltage frequency converter drives of ABB as shown in figure 2, with exclusive DTC (direct torque control) technology, these demands can not only be reached, but even exceeded.

GE Dual Pinion AG Ball Mill Electrical Drive System (NEW) (2) 7500 KW/ 10,000 HP. Price: $ 1,100,000.00 . Description. GE Dual Pinion AG Ball Mill Electrical Drive System (NEW) Consisting of: (2) 7500 KW/ 10,000 HP, 180 RPM Synchronous Motors (Air Cooled), All Base and Sole Plates, Foundation Bolts, AC Field Panels, Conduit Boxes, Couplings ...

Mill drives the desire for increased power - Siemens

ABB's dual pinion mill drive systems provide real time frozen charge protection which is especially important for the operation of the ball mills. Also its dual pinion drives solutions provide the option of variable speed, which enables the end user to increase the availability of the complete production line. Deliveries of the equipment will ...

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ABSTRACT The size of mills driven by ring-gear or by a gearless solution has significantly increased in the last years. This has created additional challenges for the driven …

ABB single / dual pinion mill drive Monitor ACS 1000 ACS 6000 Support – whenever you need it Remote diagnostic services In an ideal world, the best way to ... cated remote solutions we help you at maximum speed to get your production running again. As corrective maintenance is often un-scheduled, the use of ABB SupportLine ...

November 13, 2013 – ABB commissioned four low-speed dual pinion drive systems at the Detour Lake gold mine in Ontario, Canada. These systems include the largest low-speed dual pinion mill drives in the world. The low-speed concept operates without a gearbox, with motors driving the pinions directly, thus increasing overall system efficiency.