MATERIALS HANDLING
Ananda Wunschel presents a case study showing how a mine is lifting productivity with hydraulic drives
DEEPEST LEVEL E
MAXIMUM AUPTIME
T THE
ti Bakır is Turkey’s most comprehensive mining and metallurgical operation. Te company’s underground copper
mine in Küre is also Turkey’s most productive, combining superior yield with low production costs. Hägglunds hydraulic direct drive systems, which power the site’s critical belt conveyors, make a key contribution to that success. Driven by electrification and the green
economy, the global demand for copper has increased dramatically in recent years. Eti Bakır’s mine in Küre is an important source of supply, boasting almost 60km of tunnels that reach a depth of 960m. Each day, the mine produces 4,000-6,000 metric tons of copper ore, amounting to a yearly capacity of 1,600,000 tons. To protect those high volumes, Eti
Bakır’s operations are both modern and forwardthinking. “Just doing the regular maintenance isn’t sufficient to guarantee an efficient flow of copper ore,” says Kazım Küçükateş, production and planning coordination manager at
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Eti Bakır. “It’s correct equipment with high quality that safeguards continuity in production.”
Tat philosophy is exactly what led
Eti Bakır to Hägglunds hydraulic drive solutions in 2014.
NO TIME FOR COSTLY PRODUCTION STOPS Te Küre mine has a main shaft that is 600m deep, through which all of its ore exits. Te ore is brought to the surface by
means of a bucket system, which is able to lift 12 metric tons at a time. A belt conveyor, measuring 160cm wide and 52m long, delivers the ore to the shaft and loads it into the bucket. If either conveyor or bucket should fail, no material would be able to leave the mine. Unlike most belt conveyors in Turkey, this one is equipped with a gearless hydraulic drive system, rather than an electromechanical drive. Eti Bakır made the choice carefully, based on the conveyor’s importance and a firsthand look at a Hägglunds drive solution. “Any unwanted production stop
Eti Bakir is reaping the benefits of Hägglunds drive systems
will result in expensive losses for the company,” says Küçükateş. “Küre has a project lifetime of at least 20-25 years, so we made a longterm investment in a drive that rarely needs maintenance. After seeing a similar Hägglunds system working problem-free at a Finnish mine, we realised that this was exactly what we wanted. Te initial investment may have been higher, but we can be sure this drive system will always work.”
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