Engineering & Mining Journal

JUN 2013

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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Page 96 of 171

O N L I N E A N A LY S I S The small footprint (64-in. wide by 24-in. deep) coupled with mechanical conveying to the analyzer and pneumatic transport of sample streams from the unit minimizes installation problems. Considering that the unit operates on minus 4 mesh sample streams, this analyzer is most likely to be found in loadout towers, accepting either secondary or tertiary reject streams. The PRB mine discussed in this article actually tried out a prototype device from Progression in 2010 and then opted for a full production unit in the fall of 2011. For a view of the installed Titan CCA, see Figure 5. As is typical of any established technology being applied to a new market, there were some teething problems during commissioning. These issues, associated with a reliable air supply to the unit, coal sampling, and network connectivity had been satisfactorily addressed by early 2012. The unit has been running reliably since then. The PRB mine with the Titan CCA uses it in both feedback and feed-forward modes. They use a rolling average of online analysis results to detect Figure 6d: Titan CCA sulfur performance. Figure 6e: Titan CCA Na2O performance. JUNE 2013 • E&MJ 95

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