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The Metso QdX4™ Mill Drive System Helps Customers Achieve High Efficiencies in Mining Operations - Over the past three years, Metso has worked in close collaboration with CMD and Ferry Capitain to develop a new high-powered mill drive solution for large SAG and ball mills in the mining industry - Metso.com
The Metso QdX4™ Mill Drive System Helps Customers Achieve High Efficiencies in Mining Operations

 

NewswireToday - /newswire/ - Helsinki, Finland, 2015/11/02 - Over the past three years, Metso has worked in close collaboration with CMD and Ferry Capitain to develop a new high-powered mill drive solution for large SAG and ball mills in the mining industry - Metso.com. MEO1V.HE

   
 
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After exhaustive design research that concluded with the build, installation and continuous full-scale testing operation, Metso introduces the Metso QdX4™ Mill Drive System.

This system was tested for over 3 million cycles at 28 MW (2 x 14 MW) with an input speed of 320 RPM, proving the torque splitting system arrangement. 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 Metso QdX4™ Mill Drive System is an alternative option to the GMD. Until now, the gear-driven solution for large SAG and ball mills was limited to 18 MW.

Responding to the needs of industry
"Traditionally, the mining industry has been somewhat reluctant to change, but change has occurred nonetheless and the industry is now encouraging innovations to operate in a more efficient way. Our goal was to design a robust, reliable, cost-effective, high-powered mechanical solution without compromising the high design standards we are all used to seeing in our customers' specifications," says Frank Tozlu, Product Manager of Large Grinding Mills, Metso Minerals Grinding Headquarters, in York, Pennsylvania.

"SAG and ball mill specifications have been developed over many decades and we are still developing them today. We must continue to look at advancing innovative ideas through our standards and practices when expanding upon transmittable mechanical power," he adds.

Taking architecture to the next level
The Metso QdX4™ Mill Drive System provides the next step in the evolution of mechanical mill drive architecture. The progression from a single- to a dual-pinion arrangement has been a way to transmit twice as much power in the past. We have simply rearranged the dual system into a quad system that equally divides input power from two load-sharing motors into four pinions. With this architecture, the Metso QdX4™ Mill Drive is capable of delivering up to 32 MW in horizontal mill comminution.

Driving time and cost efficiencies
The Metso QdX4™ Mill Drive System has many features that help customers achieve both time and cost efficiencies from an equipment point of view and in terms of the overall costs in a large-scale project. For example, two installed QdX4™ drive units weigh less than one GMD quarter section. This significantly reduces transportation cost, delivery time, equipment handling, and site preparation. The Metso QdX4™ Mill Drive System reduces the need for massive reinforced foundation volumes and the requirement for customers to install large crane capacities. Similarly, there is no need for extensive, costly, time-consuming dynamic system analysis studies that, in the end, essentially verify the integrity of the GMD stator.

Allowing for easier and faster set up
The Metso QdX4™ Mill Drive System uses traditional engineering load distribution calculations for sizing standard baseplates and hold-down anchor bolts, very similar to that seen with dual-pinion drive arrangements. The Metso Qdx4™ Mill Drive System is estimated to take less than one-third the time to install when compared to a GMD system and can be mounted and aligned by trained on-site personnel. There is no requirement for large brakes and foundation brake piers or the need for extended feed and discharge mill flanges, allowing a better optimized design of the rotating structure. With the installation of two high-powered single motors equipped with load-sharing variable speed drives, frozen charge protection, inching and creep capabilities, and standard cooling, the Metso QdX4™ Mill Drive System is clearly an alternative option for operating large SAG and ball mills greater than 18 MW.

Simplifying mining operations while helping to increase profitability
The Metso QdX4™ Mill Drive System also saves the user time and money when it comes to reliability and maintenance in terms of gear/pinion lubrication. Two dedicated lubrication units are provided, one for the internal transmission gearing and one for the closed loop mill gear and pinion interface. The days of purchasing and disposing spent gear grease are over.

Minimizing the complexities related to mill installation, operation, and maintenance activities maximizes mill availability and increases overall profitability for customers. The Metso QdX4™ Mill Drive System is the first alternative to a GMD and makes mining operations simpler to save time and money.

Metso is the world's leading industrial company in the mining and aggregates industries and in the flow control business. Our knowledge, people and solutions help drive sustainable improvements in performance and profitability in our customers' businesses.

Metso has an uncompromising attitude towards safety. Our products range from mining and construction equipment and systems to industrial valves and controls. Our solutions are delivered and supported by decades of process knowledge and a broad scope of services backed by a global footprint of over 90 service centers, thousands of service employees, and an extensive logistics network.

In 2014, Metso's net sales totaled EUR 3.7 billion. Metso employs approximately 13,000 industry experts in more than 50 countries. Expect results.

Contacts:
Frank J. Tozlu, Product Manager, Large Grinding Mills, Metso, Minerals, T: +1 717 849 7157 - E: frank.tozlu[.]metso.com.
Anne Rantanen, Director, Global Communications, Metso Corporation, T: +358 20 484 2253 - E: anne.rantanen[.]metso.com.

 
 
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Written by / Agency / Source: Metso Corporation

 
 

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The Metso QdX4™ Mill Drive System Helps Customers Achieve High Efficiencies in Mining Operations

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QdX4™ Mill Drive System | Metso
Publisher Contact: Press Office - Metso.com 
+358 20 484 100 metso.info[.]metso.com
 
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