REMOTE CONTROL OPERATIONS TAKE GOLD MINER TO THE NEXT LEVEL
Machines that drill blast holes and haul rubble in Mali are controlled from Australia. Gavin du Venage reports
Australian mining company Resolute is about to go live with a gold operation in Mali, West Africa, that will be a world first – its fleet of machines will be operated entirely by technicians half a world away.
Resolute Mining, based in Perth, is putting the finishing touches on its Syama gold project 300 kilometres south of the capital Bamako, and will deliver its first gold next month.
Mali is already Africa’s third-largest producer of gold, and a favourite among explorers looking for new deposits. Syama, however, will be unique in that the machines that drill blast holes and scoop up the rubble and haul it to the surface will be controlled not by drivers, but by operators in Perth, about 14,000km away.
“We started looking at automation and the level of productivity it would produce,” says Peter Beilby, the Resolute chief operating officer. “The numbers made financial sense.”
Automation has been around for a while in mining to some degree. Rio Tinto has a fleet of trucks weighing a monstrous 415 tonnes each, which ferry ore in western Australia, 24 hours a day. This year its robot trucks delivered its 1 billionth tonne of iron ore in Australia.
However, Syama mine is the first to fully automate the entire process, from drilling to extraction to clearing rubble away and transporting it to the surface. It will also be the first automated mine where operations are conducted across continents.
“Other [miners] are doing partial automation, but we are the first to put it all together and do everything,” Mr Beilby says.
A fibre-optic network is fitted throughout the mine, connected to a control centre on the surface. This will keep the vehicles and machines online and in touch with their operators in Perth at all times.
A touchy issue that always comes up with automation is jobs. Mali ranks 175th out of 188 countries on the United Nations Human Development Index for 2016, and the average wage is just $1.25 a day. Resolute may save having to fly in expert technicians, but it could deprive Malians of desperately needed jobs.
However, Mr Beilby says the issue has been talked out with the government and Resolute has undertaken to ensure locals are trained in those skills needed on the ground, such as maintenance and servicing equipment.
Ultimately, he notes, the automation route is not really about lowering the headcount but increasing productivity and reducing the number of people underground, one of the deadliest places on Earth to work.
“The government has been quite supportive of us,” Mr Beilby says. “We’ve undertaken to provide quality jobs and skills. We’ve made it clear that expatriates who are sent over will be there to train Malians, not just to work.”
Automation is becoming familiar to the public in the form of self-driving transport, such as self-driving shuttle buses and the impending arrival of self-driving cars.
For heavy industry users, however, automation brings relief to a growing problem companies face – the reluctance of a younger generations to work in unglamorous, difficult and dirty trade jobs.
“The big issue we’re looking at is the lack of critical skills,” says Neal McCoy, key account manager in the Johannesburg office of Sandvik, the Swedish heavy engineering company. It is Sandvik that will
An operator can sit in an air-conditioned office in front of a screen, instead of sweating in a hot cab underground NEAL McCOY Sandvik heavy engineering
be providing the equipment extracting ore at Syama.
“Automation is the tool to bridge the skills gap,” says Mr McCoy. “An operator can sit with a cup of coffee in an air-conditioned office in front of a screen, instead of sweating in a hot cab underground, where he is at risk of injury or worse.”
These days, mines are often built in the last places people want to live – the far Outback deserts of Australia, or the frozen Arctic of Canada. Getting trained staff into and out of these areas is costly and enticing skilled people requires premium salaries.
Away from Mali, mineral exports are likely to boost economies such as Zimbabwe, which expects to earn $12 billion a year from mineral exports by 2023, Mines Minister Winston Chitando said last week.
Mineral production is expected to be boosted by increased output at Anglo American Platinum’s Unki Mine and Impala Platinum’s Mimosa project, which have submitted expansion plans to the government, he said.
Diamond production is expected to reach 12 million carats a year by 2023, he said.
Zimbabwe earned $2.47bn from exports of minerals in the first half of 2018, according to central bank data. Platinum shipments generated $566.9 million and industrial diamonds exports raised $40.1m, the bank said last month, according to Bloomberg.
In addition, Mr Chitando said the government would announce next week the successful bidders for assets owned by state-owned mining company ZMDC, including gold mines, adding that more companies would be put on sale at the end of this month.
Selling struggling stateowned companies is part of President Emmerson Mnangagwa’s wider reforms to cut government expenditure.
Mr Chitando told a parliamentary committee that after announcing winning bidders for its six mines, the Zimbabwe Mining and Development Corporation would put on sale its remaining 20 assets by the end of this month.
ZMDC will either sell outright, or seek joint ventures, for the mines, most of which are either operating below capacity or under care and maintenance, Mr Chitando said.
London-listed Caledonia Mining, which already operates Blanket mine in southern Zimbabwe, is among the bidders for the two gold mines.
“As government, we would like to see each and every asset owned by ZMDC getting into production,” Mr Chitando says.
Gold is Zimbabwe’s single largest mineral export. Bullion output reached a record 994,726 ounces between January and October this year, compared with 952,397 ounces for the whole of 2017, he adds.
Countries such as Mali face another impediment to attracting skilled operators – ongoing conflict and extremist activity. The UN says its peacekeeping mission there, following a failed coup six years ago, is currently its most dangerous. On October 27, two peacekeepers in Ber, close to Timbuktu, were killed when the blue helmets repelled an attack, launched simultaneously by pick-ups armed with rocket launchers and machine guns.
Autonomous machines mean that companies can reduce their staff demands in troubled countries. Along with reducing the number exposed to the inherent dangers of mining, this is a win for all. Skilled personnel will still be needed on site, but at least they will be working on the surface rather than toiling in the depths.
“At the end of the day you still need a pair of hands to repair and maintain equipment,” Mr McCoy says. “Remote control helps the operator, but the artisan still has to get out there and be on the ground when needed.”