IM 2018 May 18 | Page 24

MINING TRUCKS
Caterpillar / Terex Unit Rig 4400 truck; and the Caterpillar 992 wheel loader.
To date, trucks converted with the EVO-MT System have successfully accumulated over 500,000 hours in service in actual mining operations.
eDumper wins award eMining AG, created jointly by Kuhn Schweiz AG and Lithium Storage GmbH, has won the European eMove360 ° award with its eDumper. It is the world’ s largest electric tyred vehicle, with an unladen weight of 45 t and a total weight of 110 t. eMining AG converts conventionally powered machines to electric drive for the mining industry and markets them world-wide. eMining AG says it helps its customers achieve their goal of“ carbon-free mining”.
On October 16, 2017 the winners of the coveted innovation award were named at a formal gala ceremony in Munich. eMining AG won the eMove360 ° award in the electric vehicles category, ahead of the co-finalists AtTrack, TUMcreate and Volkswagen. The first 110 t eDumper was ordered by Ciments Vigier SA. The electric dumper truck from Switzerland, which was designed and built in 2016 / 2017 and which completed its first test runs in 2017, breaks no less than three world records. The eDumper is the largest and most powerful battery-operated electric tyred vehicle ever. In addition, it is fitted with the largest ever battery manufactured for an electric vehicle.
The GFS EVO-MT 4400 fuel storage module
Also, say the makers, never before has a single individual vehicle been able to save such a large amount of CO 2. Furthermore, when in operation it produces CO 2-free electricity, as it conveys limestone and marlstone from an extraction area situated higher than the processing plant below, with the gravitational potential energy converted to electricity.“ Unlike a diesel-engined vehicle, the eDumper never has to be refuelled; power generated using energy recovery braking on the fully laden downhill run is used to charge the batteries for the unladen return trip. If all the calculations are correct, the eMining dumper will even be able to export power to the local grid in breaks between working. Twenty journeys per shift should result in a daily surplus of 200 kWh.”
ETF d. o. o. latest modular battery offering
The former CEO of European Truck Factory GmbH( ETF), Eddy de Jongh, is now heading up ETF d. o. o., a privately held Slovenian company, which is offering to the market all-electric battery powered surface mining equipment with energy harvesting. In 2015, de Jongh designed a full battery-powered electric AWD and AWS surface mining truck with zero emissions, low noise, and energy harvesting. Currently six haul trucks with payloads of 180, 284, 380, 484, 570 and 774 tonnes have finalised designs and are ready for production. Also, wheel loaders of 63 and 94 tonnes bucket capacity and a grader with 12 powered wheels powered are available.
In 2017 & 2018 ETF says it developed special batteries which allow 4.5 hours of production and can be charged in 15 minutes. The new designs have solid tyres which means no more flat tyres and pressure checks. In Arctic and high altitude icy conditions the tyres will be equipped with spikes. An All-Wheel-Steering system is fitted with a neutral-turn ability which allows the vehicle to pivot around its own axis.
The former ETF GmbH still exists after parting company with Eddy de Jongh and has been reincorporated under a parent company in Rotterdam, ETF Holding BV. It retains the 240 t machine( now referred to as the SK1- MT240) that was actually built and previously reported on by IM but is now offering a modified version of that original ETF truck which is now called the ETF DP-1-250 along with a smaller 100 t
Eddy de Jongh has reinvented his original innovative design model, the ETF DP-2-100.
The eMining AG company assembled a team of innovative minds, highly motivated technicians, engineers and professors and with the support of the Swiss Federal Office of Energy( SFOE) to face the major challenge set by Ciments Vigier SA.“ The greatest challenges lay in acquiring the relevant data in order to make available identical or superior motive power, the choice of the appropriate type of storage and the assembly of the cells into multiple reliable batteries, plus the construction of an appropriate motor which could achieve both the maximum speed of 40 km / h and cope with the enormous forces required to drive a weight of 110 t up a 12 % gradient.”
The components required to do this provide this impressive overall performance. The motor, the transmission, the batteries and the inverter are all new designs based on the latest generation of industrial products. In September / October 2017, these components were installed into the empty chassis of the Komatsu HD605- 7. The hydraulic pumps for the multi-disk brakes, tipper drive, servo support and preloading of the auxiliary braking system are driven by another 200 kW electric motor. The 700-kWh storage battery, consisting of four blocks, is fitted into the engine space and the space normally occupied by the diesel tank.
The initial test runs were conducted in Lommis in the canton of Thurgau. The machine then arrived in the Rondchâtel industrial zones in Péry-La Heutte, where a new Duratray steel / rubber tipper was fitted to the rear. The green eMining dumper Number 1 then travelled through a 2.2 km tunnel into the La Tscharner extraction area in January 2018, where it was tested under the harshest conditions prior to being handed over on April 20, 2018 to Ciments Vigier as the world’ s largest Plus Energy vehicle( capable of exporting electricity). Over the next 10 years, eMining dumper Number 1 will transport more than 300,000 t a year and will be added to in 2019 when Ciments Vigier provides it with an identical colleague, enabling two times 1,300 t of CO 2 and 1,000,000 litres of diesel to be saved.
Pioneer helps drive truck innovation
Paul Moore spoke with Chris Althausen, Director of Sales & Marketing at Cleveland, Ohio-based Pioneer Solutions, LLC, which is one of the leading global technical consultancies focused on engineering for off-highway dump trucks. It has worked with many of the Chinese and Indian OEMs as well as the established players in Europe and the Americas. It is also a manufacturer in its own right, supplying wet disc front and rear brake systems, which boost safety and performance while also helping OEMs achieve ISO 3450 brake certification, including
22 International Mining | MAY 2018