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Boriden, a Swedish miner, will invest 300 million kronor ($30.7 million) to expand the electrified transportation route of aitik copper mine in northern Sweden, and use the same technology in the kevitsa Polymetallic Mine in northern Finland.
The auxiliary power supply truck of aitik copper mine
SWedish started an in pit electrified truck transportation test project at aitik open pit copper mine, including the construction of a 700 meter power line and the transformation of four trucks.
The electrical infrastructure of this project is provided by the electrical engineering companies eitech and ABB group, the truck transformation is completed by caterpillar and its dealer PON equipment, and the Chalmers University of technology in Gothenburg supports the research of electrical system.
Stringing power supply system is not a new thing, but the weather in aitik copper mine area is a challenge for the application of this system. Boliden said the mine is the only one to use stringing power in the Arctic climate.
Mikael staffas, President and CEO of the Boliden group, said the company is now taking further steps to increase productivity and improve the climate impact of aitik and kevitsa open pits.
What aitik copper mine needs to do is to extend the electrified line for another 3 kilometers and refit 10 trucks. The company hopes to reduce the greenhouse gas emissions of transportation operations by 15% during the operation of the mine. At the kevitsa mine, Boliden converted 13 trucks and built a 1.8-kilometer power line to reduce greenhouse gas emissions by 9%.
The power line for stringing will be implemented in phases by 2022, and Boliden's investment in 2020-2021 will be sk30 billion. Boliden said that after the completion of the investment, the diesel consumption of the project will be reduced by 5500 cubic meters per year.
The mine has also launched a productivity improvement program, as externally powered trucks can run faster.
At this year's world copper conference, Stefan romedahl, President of Boliden mines, said that the ramp transportation speed of the trolley powered truck can reach twice the speed of the diesel model, and the operation is quieter.
