Capturing unrealized capacity

Abstract A mine’s inherent capacity is dictated by factors such as equipment, design, people, processes, and environment. Actual production may approach, but never surpass, the inherent capacity limit. The inherent capacity ceiling can only be increased through re-engineering. Autonomous haulage systems have the potential to significantly increase a mine’s inherent and realized capacity. Realized capacity may be maximized through the optimization of soft factors such as the processes, behaviours, and organizational systems, controlling asset utilization, availability, and performance. Truck shovel dispatching systems revolutionized the utilization of mobile assets. High-precision global positioning systems (HP-GPS) are increasingly being adopted to optimize equipment performance. Real-time maintenance management systems have the potential to revolutionize equipment availability and significantly reduce cash costs. This paper explores some of the solutions available to mines to increase their inherent capacity and maximize their realized capacity.
Keywords: Capacity, Maintenance, Utilization, Mining, Remote condition monitoring, Mobile equipment
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Summary: The objective of this investigation was to determine how the losses of nickel, copper and cobalt in fayalite slags could be controlled for nickel mattes with iron contents below 5 wt%. Laboratory-converting and slag-cleaning experiments were carried out at 1250°C.

Several variables were investigated during and after converting to help minimize the amount of nickel and cobalt that reports to the slag. The variables used were oxygen concentration in the blast, coke breeze addition and nitrogen...
Publication: CIM Bulletin
Author(s): P. Toscano
Keywords: Bessemer mattes, Slags, Nickel, Copper, Cobalt
Issue: 1076
Volume: 97
Year: 2004
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Summary: This paper describes how Automated Mining Systems (AMS) is evolving the state-of-the-art in guidance systems for autonomous underground vehicles. The techniques, trade-offs, and lessons learned from these systems are described, including the safety regime that has been implemented.

First generation autonomous guidance systems for underground vehicles relied on infrastructure for the vehicle to follow. However, there are additional costs associated with that approach.

The current generation...
Publication: CIM Bulletin
Author(s): L. Bloomquist, J. Law, C. Arnoldi
Keywords: Automated Mining Systems, Infrastructureless guidance systems, Underground vehicles, Guidance system safety, 3D vision systems
Issue: 1076
Volume: 97
Year: 2004
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Summary: Information and communication technology (ICT) is seen as a key source of future productivity improvements in mines. The information technology infrastructure (ITI) necessary to achieve these productivity improvements will come in the form of data integrated from multiple source systems throughout the mining value chain. Two pure approaches are available: supplier-controlled or operations-controlled data structures; each strategy has its own advantages and disadvantages. Case studies...
Publication: CIM Bulletin
Author(s): S. Dessureault, J. Porter, M. Woodhall
Keywords: Information and communication technology (ICT), Information technology infrastructure (ITI), Data integration, Mining value chain
Issue: 1076
Volume: 97
Year: 2004
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Summary: In the mining industry, maintenance is a key priority and a major expense. As mining equipment is large in scale, high in cost, and difficult to tow, it is key to maintain equipment on a timely basis. Breakdown in -40°C or away from a maintenance station can cause great costs in repair as well as lost production.

It has often been quoted that about 5% of the North American production is lost every year due to unscheduled downtime. About one-third of the downtime is attributable to equipment...
Publication: CIM Bulletin
Author(s): Y. Faitakis, C. Mackenzie, G.J. Powley
Issue: 1076
Volume: 97
Year: 2004
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