IM 2019 June 19 | Page 29

UNDERGROUND MINING RAIL A NMT was a leader in underground continuous loading and unloading rail haulage systems around the world for over thirty years with our systems used in most of the world’s largest underground mines. We have collaborated at many mines but which include LKAB Kiruna in Sweden (iron ore), Freeport McMoRan Grasberg in Indonesia (copper-gold) and Vale Thompson in Canada (nickel) projects and on other new projects at the bidding phase such as in Australia, China and Russia. Q Can you explain why you now feel you have a one stop shop for mining rail haulage? A The NMT solutions and equipment always were leaders in the movement of ore, materials and personnel both in vertical shafts and horizontal tunnels, and now with the addition of SCHALKE technology in traction and technology in maintenance equipment as stated it gives us diversification not only in mining but urban metro and other industrial applications. Q Can you provide a synopsis of the SCHALKE ModuTrac technology? A ModuTrac is a trademark and stands for what the total system efficiency will be.” In addition to the loco, Anglo is applying LOHC “modular traction systems.” It means that SCHALKE’s technology allows to exchange the power sources of the locomotives in a very short time, such as from diesel to battery. Furthermore, different power sources like diesel- powerpack, battery-powerpack, pantograph for overhead wire and/or pantograph for third rail are possible options. Our 40 t Freeport Grasberg locos “MMT-M- 270-BDE” are ModuTrac locos, because we can switch within one hour from diesel-powerpack to battery-powerpack and vice versa. Furthermore, we are developing modular mining locomotives “SMT-M-100-BDE” with weights from just a few tonnes up to 25 t, which will have the ModuTrac functions as well. But also, besides mining our new modular multi system service and shunting locomotives “MMT-S-800- BDE” for urban rail transport operators are ModuTrac equipped. applications from large tonnage to small tonnage, and from totally manual to fully autonomous systems. The key factor of our technology and systems is they are scalable, reliable and flexible for any application. Mines are looking at rail due to higher efficiency, the robustness and longevity of rail versus other mobile equipment, better environmental factors with a major carbon footprint reduction and the fact that it has the lowest operating and maintenance costs with driverless systems available, therefore less workforce underground. Q What has the mining rail industry learnt or inherited from tunnelling rail in terms of technology and knowhow and what are the main differences in approach? A We have always offered systems that will fit all A Actually I would say that the crossover is minimal, as there are two completely different sets of requirements. Tunnelling equipment is typically built for two years of operation (or less because tunnels are normally done well within this time period), whereas mining locos are built for 25+ years of operation. Tunnelling locos are therefore cheaper but much less reliable than mining locos. technology on a dozer and an LHD to learn what the technology can do. The aim is to refine the technology in order to roll it out across a much wider range of equipment. IM Q In a general sense can you give some idea of what types of mines are now looking at rail and why? Are you only focussed on the autonomous, very large tonnage rail projects? SEVILLA 15-17 octubre 2019 Palacio de Exposiciones y Congresos (FIBES) www.mmhseville.com World Mining Meeting in Europe Technological Trends in Mining