Cummins_eMag_Summer_2014 Final Single

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Cummins mining business manager Stewart McKeddie (left) with Golding maintenance superintendent Ben Victor (centre) and maintenance supervisor Scott Poulsen. Both the mine and power station are owned by CS Energy, a Queensland Government owned corporation and an electricity generator, trader and retailer. The QSK38 is an evolution of the long established 38-litre V12 Cummins KV-series platform, a mining industry benchmark for reliability and durability in its horsepower class. A Tier 2 emissions engine, the QSK38 is rated at 810 kW (1086 hp) at 1800 rpm in the Hitachi EX1900-6 which has an operating weight of 192 tonnes. A feature of the Tier 2 engine is the modular common rail fuel system (MCRS) that ensures low emissions, quieter operation, smoother power delivery and faster load acceptance. Kogan Creek mine provides 2.5 million tonnes of coal a year to the adjacent power station. Photo courtesy of CS Energy. Photograph by Nadine Shaw Photography. At Kogan Creek, the EX1900-6 is working with two other Cummins-powered diggers – a Komatsu PC3000 and Hitachi EX1800-3 – which feed a fleet of 14 dump trucks. Golding selected these size diggers because of the nature of the coal seams, and they move a total of 5.0 million BCMs a year. Only scheduled maintenance has ever been carried out on the QSK38. Cummins’ service and diagnostic tool, Insite, is used by the Golding maintenance team at Kogan Creek. During the QSK38 change-out, time was made available for a Cummins representative to demonstrate the high-level diagnostic capability of the Insite tool such as cylinder cut-out testing and other procedures that reduce troubleshooting time. All members of the Golding maintenance team take pride in ‘ownership’ of the entire mining equipment fleet on site. The diggers, as always, are the backbone of the operation, and their engine reliability and durability is a critical requirement to meeting the production targets. Golding maintenance superintendent at Kogan Creek, Ben Victor, confirms that “only scheduled maintenance” has ever been carried out on the QSK38. A contributor to the long engine life is obviously Golding’s maintenance regime. “We make sure we put time into preventive maintenance and we’ve never missed our contract obligations to the power station,” he says. Routine servicing intervals are also strictly adhered to. “We carry out oil changes every 250 hours and we fit new fuel filters and air cleaners every 250 hours regardless of the condition they’re in,” he points out. 14 15 Golding developed Kogan Creek mine from a greenfield site and began operations in 2006 under an 11-year contract to mine the thin seam deposit.
FIRE PUMP Holding fire A containerised fire pump, incorporating an 8.3-litre Cummins C-series diesel engine, has been designed and built by Perth-based Dynapumps for a mining project in the Pilbara, WA. The dual electric/diesel fire pump system has been installed at the project by the construction arm of Forge Group, an engineering, procurement and construction service provider to the power and infrastructure, mineral and resources, and oil and gas sectors. Housed in a 40 ft sea container with lighting, access doors, louvers, ventilation and monorail, the fire pump is to AS2941 standard. The container is acoustically attenuated to 85 dBA @ 1.0-metre and the construction enables quick on-site hook up to the fire ring main. Mounted within the container are electric and diesel-driven ISO5199 pumps capable of a duty flow of 6000 litres/min @ 92-metre head each. The diesel pump is driven by the Cummins 6CTA engine rated at 260 hp. “We used a Cummins engine for this project because of the high focus on quality and reliability of equipment by Rio Tinto, especially when it comes to critical safety equipment such as fire pumps,” says Jason Moore, applications engineer for Dynapumps. “Given the long design life of this fire pump system, we needed an engine that could ‘go the distance’ with local support and parts availability to minimise any downtime of safety systems while operating in the harsh environment of the north west.” Dynapumps points out there are major benefits of constructing a pump set within a shipping container. The container helps increase the operational reliability of the pump by protecting it from the harsh conditions of a mine site. It also reduces the amount of cleaning and maintenance required to keep the radiators and cooling fans working efficiently by protecting the pump from the environmental elements. In the event of a fire, the sea container will slow the fire’s progress down significantly and protect the pump from the flames for a period of time. The ‘duress pendant’ is a feature of the real-time monitoring of Cummins field service technicians. Dual fire pump system incorporates a diesel pump powered by Cummins. CUMMINS SOUTH PACIFIC SUMMER 2014
Page 1 and 2: MINING BUSINESS WORK MUSCLING IN AT
Page 3 and 4: On Site, On Demand, On Time. Whatev
Page 5 and 6: EX8000 recently loaded 110,440 tonn
Page 7 and 8: Jim Young with Alex Mier, Cummins S
Page 9 and 10: ATION When Contract Power decided t
Page 11 and 12: The ability of the power station to
Page 13: ENGINE LIFE QSK38 ENGINE LIFE 19,19
Page 17 and 18: Cummins on-site technician Casey Ha
Page 19 and 20: Downer Mining’s Adam Morrison (se
Page 21 and 22: USER REPORT CUMMINS SOUTH PACIFIC S
Page 23 and 24: At Iron Duke BGC’s operations inc
Page 25 and 26: Dewatering pump capable of pumping

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