Engineering and Mining Journal - Whether the market is copper, gold, nickel, iron ore, lead/zinc, PGM, diamonds or other commodities, E&MJ takes the lead in projecting trends, following development and reporting on the most efficient operating pr
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H+L 2013 PREVIEW Austria, will discuss how the Sleipner transport system for tracked machinery makes it possible to reduce the relocation time remarkably. Coinciding reduction in maintenance costs is another major asset of the system. It can be demonstrated by field measurements showing that economic benefits are outstanding without making any changes to the existing fleet. Dan Nower, global manager, optimization and machinery health management for Emerson Process Management, will present Vibration Monitoring of Electric Rope Shovels. Automated vibration monitoring of multiple systems on the shovel can determine the machine's condition at all times. This reduces unplanned downtime and keeps critical shovels in production. The Tuesday morning session will conclude with a lively debate on hydraulic excavators vs. electric shovels. In Battle of the Titans—Hydraulic Excavator vs. Rope Shovel Performance, Tim Joseph, professor, University of Alberta, will defend the rope shovel, while John Sammut, Komatsu Mining Shovels, will advocate on behalf of the hydraulic excavator. wear particles and dirt behind to contaminate the new oil. Cleaning the oil to OEM recommended levels with a depth filter media reduces contaminants like wear particles, water and varnish and extends the oil life while improving equipment reliability. In one example, oil life increased from 18,000 to 25,000 hours and wheel rebuilds decreased from 16 to 12 per vehicle per year thus saving ~$500,000 annually. In his presentation, Field Trial of Synthetic Gear Lubricant in Electric Wheel Motors, Don Howard, new product innovation-mining, Bel-Ray Co., will provide a detailed interpretation of the analytical data generated during a two-year field trial of an ISO VG synthetic gear lubricant in 16 AC electric wheel motors. The field trial was undertaken as part of the wheel motor manufacturer's oil qualification program. Maintenance The Tuesday afternoon session will focus on maintenance. Dr. Christian M. Bauer, Ph.D. mining, Pall Corp., will lead off with Best Practices in Fuel Supply Chain Cleanliness Management. Modern mine sites are among the world's largest consumers of diesel fuel, with an annual consumption of more than 200 million liters. Delivered diesel fuel can contain as much as 20 mg/l solid contaminants, but vehicle on-board fuel filters are not designed to tolerate high contamination levels without significant impact on service life; most engine manufacturers have issued specific fuel cleanliness requirements, particularly for engines with common rail fuel injection systems. Therefore, contamination control throughout the entire fuel supply chain is critical. In this presentation, Dr. Bauer will discuss case studies highlighting best practices in fuel supply chain cleanliness management. In her presentation, Improve Equipment Reliability and Reduce Costs with Clean Oil, Caren Caffrey, account manager for C.C. Jensen Inc., will discuss cleaning oil as a practice. Routine oil changes in mobile equipment rear differentials, cost time and money, and do little to improve equipment reliability. The high viscosity oil drains slowly and leaves a trail of varnish, www.e-mj.com APRIL 2013 • E&MJ; 83