Tag Archives: mine electrification

3ME, Batt Mobile Equipment gear up for TRITEV deployment at Aeris’ Tritton mine

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With the launch of the ‘TRITEV’ in Australia earlier this month, 3ME Technology and Batt Mobile Equipment unveiled what is believed to be the first fully battery-electric retrofit 20 t loader suitable for deployment in underground hard-rock mines.

The Integrated Tool-Carrier/Loader is scheduled to arrive at Aeris Resources’ Tritton underground copper mine in New South Wales later this year as part of an initiative developed under Project EVmine, with the help of METS Ignited.

It follows on the heels of Safescape’s Bortana EV, launched in 2019, also as part of Project EVmine.

Steven Lawn, Chief Business Development Officer at 3ME, told IM that the machine’s development represented more than just a “diesel refit”.

“The machine we used was a second-hand Volvo L120E that required a ground-up rebuild,” he said. “The guys removed all diesel internal combustion engine components except the transmission and drivetrain. They then modelled the expected duty cycle.”

After this modelling, the designers developed a battery-electric system (battery, motor, motor control unit and ancillary items) that would suit the application at hand.

The software team then entered the process, writing the vehicle control unit software (ie the software that makes everything work), with a focus on ensuring the human machine interface remained the same so there was no difference for an operator controlling the legacy diesel variant and the battery-electric retrofit version, Lawn explained.

They then integrated the system into the existing platform before the team at Batt Mobile Equipment provided a mechanical overhaul of the machine.

Ahead of deployment at Tritton, the company plans to test the machine at the Newstan mine, in New South Wales, Lawn said. This underground mine, previously owned by Centennial Coal, was put on care and maintenance back in 2014.

The partnership that delivered this industry first already has eyes on another EV retrofit, Lawn said, explaining that a Minecruiser platform for use in underground hazardous area mines is next on the agenda.

3ME Technology is understood to have an upcoming release in the pipeline in regards to its state-of-the-art battery system for mining applications, now also under demand from the defence market as indicated by recent public announcements about 3ME Technology’s participation in Australia’s C4 EDGE Program.

“The increased levels of safety and compliance achievable with the 3ME Technology battery system means that 3ME Technology is spearheading the supply of high-performance lithium-ion batteries into underground mining,” the company said.

Sandvik to show off newest battery-electric loader next week

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Sandvik Mining and Rock Technology is set to announce details of its new battery-electric LHD at its Innovation in Mining Virtual Event next week, Brian Huff, has confirmed.

Speaking on ‘The Next Generation of Battery-Electric Vehicles’ event on Tuesday, Huff, Vice President of Technology at Artisan Vehicle Systems, a Sandvik Mining and Rock Technology Business Unit, said a new machine would be announced on September 29 at the virtual event. He later confirmed the loader in question would be on show.

Not too many details were given away about this new BEV, but Huff confirmed it would be “another machine to fill out our weight class” and host, Martina Lundgren, said the loader represented the first joint project between Artisan and Sandvik since Sandvik acquired Artisan in 2019.

In addition to announcing this news, Huff also confirmed that “there will be a larger class…haul truck intended mainly for the Australian market” coming from the company in later years.

As it stands, the company’s largest payload battery-electric haul truck is the Z50 50 t machine (pictured), which has been trialled at the Barrick Gold-owned Turquoise Ridge gold mine, in Nevada, USA.

Cambrian college to offer battery-electric vehicle training course

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Cambrian College, in Greater Sudbury, Ontario, is trying to equip miners with the relevant skills to facilitate the sector’s electrification transition by offering a new Corporate Training course focused on battery-electric vehicles (BEVs).

The BEV training course is being delivered by Cambrian’s Corporate Training division in partnership with the College’s Centre for Smart Mining – part of Cambrian R&D, the college’s applied research division. The course is designed specifically for heavy-duty equipment technicians employed in the mining sector.

The use of industrial BEVs is increasing in modern mining and the industry needs skilled workers to implement and maintain this new technology, the college said.

“Cambrian’s latest Corporate Training course will ensure those employees already working in mining can obtain that expertise and qualifications in Greater Sudbury,” it said.

Stephen Gravel, Manager of Cambrian R&D’s Centre for Smart Mining, said: “An often overlooked, yet critical component in the adoption of new techniques and technologies in the mining sector is ensuring the workforce is adequately trained.

“A major barrier to getting new technologies like BEVs into mines is the lack of familiarity and comfort among heavy-duty equipment technicians in the field. The Centre for Smart Mining is looking to address this problem through targeted technology upskilling in a number of important high-tech areas; the first of which being BEVs.”

The course begins online shortly and will be led by a qualified instructor, Cambrian College said. On-campus in-person learning opportunities are expected to be available in the future as activities fully resume on the college’s campus. Those looking to upgrade their skillset will gain much needed industry knowledge, Cambrian College says, through four modules:

  • Fundamentals of Battery Electric Vehicle Safety;
  • Introduction to Battery Electric Mobile Equipment;
  • Introduction to Battery Electric Vehicle Communication and Troubleshooting; and
  • Practical Battery Electric Vehicle Training.

“At Cambrian, we’re committed to keeping up with the latest industry trends and making sure our courses are meeting demands in real time,” Cambrian College’s President, Bill Best, said. “The advancements in mining, especially with innovation and the shift to battery-electric vehicles, is just one area where we are the premier destination for those looking to upgrade their skills to be ready for the jobs that just didn’t exist a few short years ago.”

Polymetal and SMT Scharf sign underground electric vehicle MoU

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Polymetal and SMT Scharf have signed a Memorandum of Understanding (MoU) for a potential strategic cooperation in underground electric vehicles (EV) development in line with the miner’s climate strategy.

The MoU outlines that Polymetal and SMT will cooperate in the development, implementation and testing of zero-emission battery EVs. Initially, the collaboration is to be focused on mid-ranged LHDs and trucks, with potential involvement of drill rigs and utility vehicles in the future, Polymetal said.

IM understands Polymetal has previously tested RDH (now owned by Scharf under RDH-Scharf) battery-electric machines at some of its underground mines.

Two pairs of units (an LHD and truck) are going to be tested at Polymetal’s operations during the one-year trial with further collaborative re-design, signing of a distribution agreement and establishment of an after-sales support centre, Polymetal said, adding that the strategic cooperation is set to last for 10 years with an opportunity for further extension.

“The partnership with SMT grants us an easy access to customisable battery-electric vehicles which could positively contribute to our operating costs dynamics, greenhouse gas (GHG) emissions and personnel safety at underground mines,” Vitaly Savchenko, COO of Polymetal, said. “It fits well into our strategy to gradually involve EVs across the group’s operations and marks another step towards cutting carbon emissions by 5% in 2023.”

Polymetal’s GHG emissions from mining fleet and mobile machinery at the hubs with underground mines for 2019 were 334 Kt of CO2 equivalent, which is 12% of the group’s total emissions (Scope 1+ 2).

Sandvik to add rock bolter to battery-powered mining line up

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Sandvik Mining and Rock Technology plans to launch its first and one of the the mining industry’s first battery-powered rock bolters next year, as it continues to roll out new solutions to electrify the underground mining space.

The Sandvik DS412iE extends the zero emissions concept to the underground rock bolter class and opens a wide range of possibilities for mines driven to boost their productivity and safety with data-based analytics, according to the company.

In its core mission of delivering productive, secure and versatile rock support solutions, Sandvik rock bolters have a clear track record, according to the company.

“Still, these tools’ automation and data acquisition capabilities have not been as advanced as their production and development drill rig counterparts,” the company said. “Scheduled for launch during 2021, the new Sandvik DS412iE rock bolter will complement the intelligent family of next-generation battery-powered underground drill rigs.”

Anssi Kouhia, Product Manager, Rock Support Drills, said the DS412iE is basically an upgrade on its existing Sandvik DS411.

“We have received positive feedback about that model,” Kouhia said. “We made an accomplished model even better with more advanced automation capabilities, improved data acquisition and upgraded ergonomics.”

Like the battery-powered DD422iE  jumbo drill, the rig trams on battery and carries out drilling and bolting when connected to the mains power.

Along with its direct predecessor, the new intelligent bolter also has much in common with the larger Sandvik DS512i in the 5 x 5 m drift size. One example is their similar versatility in terms of bolting systems: Sandvik DS512i and Sandvik DS412iE can handle a wide range of bolt types and lengths, including a combination of automatic cement mixer and automatic resin injection on the same bolter.

The new Sandvik DS412iE will effectively complete Sandvik Mining and Rock Technology’s rock support drill range for the 4 x 4 m class, updating its entire product range to the latest i-standard of connectivity and automation capabilities, the company said. Additionally, the Sandvik DS412iE will be the supplier’s first battery-powered rock bolter.

“In other words, the zero underground emissions approach will now include all stages of the underground mining process: rock support drilling as well as development and production drilling and loading and hauling,” Sandvik said. “The ability to virtually eliminate underground particulate matter, NOx, CO2 and heat emissions is first and foremost a major health and safety benefit, but also offers cost savings by reducing mine ventilation power requirements.”

The new rig responds to major industry trends that customers have identified in feedback sessions, Sandvik said.

In addition to reducing underground emissions and improving working conditions, the safety and environmental improvements also make economic sense by reducing time lost to injuries and costs. The advanced automation capabilities will increase the speed and safety of the bolting cycles as well as open a range of possibilities for process optimisation, the OEM said. “This will translate into more reliable rock supporting and safer working environments.”

Like one-hole automation that has been a standard feature in Sandvik mining and tunnelling jumbos, the one-bolt automation feature of Sandvik DS412iE now extends this capability to rock bolters, Sandvik said.

“The rig can carry out a single bolting cycle unassisted, so that in optimal conditions the operator only needs to manually relocate the boom from one bolt location to another,” the company said.

The battery-powered unit will come with two automation levels: the standard Silver package from the outset and, in the near future, the optional extended Gold level. The main difference between the two packages is in the remote monitoring and operating capabilities and in the measurement-while-drilling functionality.

The automation packages seamlessly mesh with Sandvik iSure software, according to the company. Available as a standard tool for designing drift drilling plans and blasting plans, iSure now increasingly extends to bolting operations and comes in three levels: iSure Basic and iSure Plus for the standard Silver automation package, and iSure Premium for the optional Gold level automation. The advanced automation solutions can offer a significant productivity and quality boost, Sandvik said.

“With iSure, you can design a bolting pattern in the office, transfer it to the rig over Wi-Fi or on a USB flash drive, carry out the bolting according to the pattern, and, on top of that, you can retrieve a report that compares the plan and the realised bolting pattern,” Kouhia says.

iSure compatibility, in particular, enables more extensive data acquisition and reporting, Sandvik said.

In addition to the bolting pattern, the retrieved data will also include various parameters that characterise the quality of the bolting process, such as grouting concrete consumption and bolt tightening torques. This can serve to document the bolting process in much greater detail than it did previously, which enables more accurate quality control of the rock supporting measures.

The verifiable track record of the rock support measures taken provides systematic safety documentation and, should a failure still occur, the bolting process reports can help to determine the cause of it, down to the level of an individual bolt – when it was installed, how it was installed and whether it complied with set specifications.

Full compatibility with the My Sandvik fleet management portal and the OptiMine suite of digital mine automation and analytics solutions further enhances the connectivity of Sandvik DS412iE, providing all-round data-based control for rock support operations, the company said.

While the main areas of focus for Sandvik DS412iE surround automation, connectivity and data acquisition capabilities, productivity has not been neglected, Sandvik said.

The new boom control system, advanced boom manipulator mode and optimised bolting head movements help the operator to achieve a smooth and efficient process by keeping the bolting head automatically aligned with the correct bolt fan positions and angles, the company explained.

In terms of sheer mechanical power, much of the new bolter’s high productivity derives from the new control system of the Sandvik RD314 rock drill, which substantially increases the output and penetration rate. Overall, the productivity upgrade is roughly 25% from previous models, according to Sandvik.

The Sandvik DS412iE includes many safety and ergonomic features.

The bolter is designed to be compliant with the EN16228 standard for drilling and foundation equipment, which is harmonised with the requirements of the European Machinery Directive. One of the EN16228 requirements is an access detection system (ADS). In the Sandvik DS412iE, the ADS automatically scans the surroundings of the bolter and alerts the operator should a person enter the work area, which effectively reduces potential accidents. The safety improvements also include a fully covered steel strand reel.

The Sandvik DS412iE continues the bolter class’ legacy of secure and effective cabin design, Sandvik says, with a 55% percent improvement in visibility, better effective vibration control and significant noise reduction adding up to a safer and more comfortable workplace for the operator.

Future launches will also include a diesel-powered version, Sandvik DS412i, which will be compliant with the latest engine emission specifications, Sanvik said.

This is an edited version of a story that first appeared on Sandvik’s Solid Ground platform here.

Battery-electric vehicles dominate in GMG Electric Mine project survey

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A survey aimed at defining priorities for the GMG Electric Mine Operational Knowledge Sharing Platform project has highlighted that despite the rise of other diesel-alternative technologies, battery-electric vehicles (BEVs) continue to be the area of focus for the mine electrification community.

Respondents to the survey were asked about what types of equipment to prioritise, with haul trucks and LHD trucks coming up top out of all equipment and BEVs topping the results when it came to electric equipment types.

In terms of the latter, BEVs beat off competition from hydrogen fuel cells, trolley assist systems and tethered equipment, commanding more than three quarters of the votes.

GMG remarked: “Some commentators noted that this will be different depending on underground or open pit (eg BEVs underground, trolley for open pit), so this result may be skewed due to the large representation of underground mining in the survey.”

In the survey, performance was noted as the highest priority in terms of types of information that will provide value, GMG said.

However, the results of the workshops held under the project identified that there would be certain types of information that can be used to provide value in overlapping areas (eg they may help operations make performance comparisons and also identify operational or maintenance needs).

Highlights include:

  • Information about the daily cycle and time usage in comparison to diesel;
  • Identifying what information should be available in real time;
  • Information or metrics for comparing charging strategies;
  • Information for assessing and updating charging infrastructure;
  • Training information for operators, safety personnel and maintenance technicians; and
  • Information on heat generation.

And the following priorities were identified in the survey and workshops when it came to the uses of this information:

  • Understanding capital and operating costs;
  • Developing the business case;
  • Developing a charging philosophy and strategy;
  • Understanding safety requirements and improving safety; and
  • Understanding infrastructure, design and planning requirements.

The GMG noted: “These results may be influenced by the higher representation of underground mining professionals and that 64% of respondents are North American and similar representation at the workshops.”

The survey was open between April and June 2020 with 95 respondents (as of June 9). Underground mining was more heavily represented than surface, but many respondents specialised in both, according to GMG. Professionals (engineers, geologists, metallurgists, etc) were the most highly represented (26%) while corporate senior management (17%) and corporate technology leaders (17%) were also well represented.

The GMG Electric Mine Operational Knowledge Sharing Platform project aims to create a neutral platform to capture performance data for electric surface and underground equipment based on the industry’s knowledge and experience, GMG says.

ABB envisages eliminating diesel from the open-pit mining mix

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Reducing carbon emissions during open-pit operations is now a major driver for global mining companies, who are going back to the future by employing trolley assist systems for trucks to limit diesel fuel usage and costs, while at the same time boosting speed-on-grade for greater throughput, write ABB’s Mehrzad Ashnagaran and Michel Serres*.

Haul road electrification technology has been in development for decades, but the emergence of a new generation of diesel-electric trucks that already have an electrical system on board to tap into – making it easy to attach them on a trolley line – means the concept has recently begun to gain significant traction as a commercially viable way to facilitate the all-electric mines of the future.

One of the key challenges when it comes to reducing diesel fuel usage is cycle times. There is no technology today that enables miners to fill the truck’s tank and complete a shift without stopping; either you have to increase the speed of the mobile equipment or the size the fleet itself – both of which have a direct impact on capital expenditure.

Trolley assist systems have returned to the market in the last two to three years in places such as North and South America, Africa and Turkey, mainly due to CO2 emission taxes, the removal of tax advantages from diesel, and premiums offered by energy suppliers to incentivise companies to use electricity.

Going forward, there are many synergies with using trolley lines, which offer huge benefits in terms of CO2 reduction.

Large trucks regularly carry 3,000-5,000 litres of diesel in the tank and consume around 300-400 litres per hour while travelling up a 17 km ramp in half an hour.

By going electric, the vehicles, when on-trolley, only use around 30-50 litres an hour, which equates to a reduction in diesel consumption of as much as 350 litres an hour, making operations much more CO2 efficient. In addition, the speed of the trucks will increase, meaning you have a higher throughput at the mine. Operators can also start to think about parking some of their fleet, which will bring additional indirect value to overall operational improvements through better maintenance planning to improve fleet availability and fleet longevity.

One example of the revival of trolley assist systems is at the Aitik open-pit copper mine in Sweden. Here Boliden, ABB and partners trialled the electrification of four haulage trucks on a 700 m trolley line, with the goal of reducing annual diesel usage by 800,000 litres and carrying 70 Mt of ore every year at the mine without using fossil fuel.

Reduced diesel consumption at Boliden mines

Boliden has now moved on from the 700 m trolley line trial at Aitik to confirming it will install an additional 3 km of trolley line at the mine, plus 1.8 km at Kevitsa (in addition to the accompanying conversion of diesel-electric haul trucks). By doing so, Boliden says it will reduce its diesel consumption by 5,500 cu.m/y when its investment is complete. That is a big number.

Aitik is currently the only mine in an arctic climate where electric trolley has been installed. Overall, with the further three kilometres of electric trolley line, greenhouse gas emissions from transportation over the life of mine are reduced by nearly 15%.

In Kevitsa, 13 mining trucks are converted for electric trolley lines at the same time as the 1.8-km-long electric trolley line is being built. The investment means that greenhouse gas emissions over the life of this mine will be reduced by 9%.

In addition, productivity gains are added as the electrically powered trucks can run at a higher speed, and the working environment for the drivers is also improved, not least through lower noise levels.

Today’s mine design

Diesel-electric trucks have an electrical powertrain in the wheels, meaning they can be driven fully electric, and have an electrical genset on board, so they generate electricity as they go.

However, due to the limitations of existing battery technologies at surface mines, we cannot yet manage large payload trucks of 280-400 tons (254-363 t) fully battery equipped. Companies are therefore trying to close the gap between the trolley and the loading or dumping point using battery packs and other solutions.

Constraint management

The transformation from diesel to electric is bringing new advantages in terms of CO2 reduction but also new constraints in terms of mine planning and fleet management. Energy costs represent almost one third of a mining company’s total cost base; helping industry to manage these costs is therefore key.

Switching OEMs on to electrification

Having initially adopted a ‘fast follower’ approach to new digital technologies, the risk-averse mining sector has also been slow to embrace electrification. Operators are looking to technology leaders such as ABB as well as more niche players to make change happen.

A lot of mining companies are looking to the likes of ABB to influence mining equipment manufacturers and engage them in the electric transformation, and so accelerate the process.

A clear technology roadmap and shifting workforce skill are key to this transition.

The biggest challenge is that customers are nervous about redesigning existing diesel-powered mines to integrate new electrification systems. Asset lifecycle strategies, ownership models and duty cycles are all subject to change. Ultimately, the customer needs a very clear technology roadmap and finding the right partner for this major undertaking is key.

According to Accenture’s resources practice, the profile of the future mining workforce could change by up to 80% by 2024, driven by increased adoption of advanced technologies. The onus is therefore on mining companies to demonstrate a progressive commitment to electrification to attract and retain the next generation of digitally literate talent.

Today the worldwide situation with COVID-19 may accelerate these changes faster than forecast.
Current skill sets will have to be re-evaluated for the all-electric mines of the future, and so the need for change management is key. Tomorrow we will need more workers understanding the concept of electrification, in addition to digital and planning skills – so the shifting skill profile is an important consideration.

*Mehrzad Ashnagaran is Global Product Line Manager Electrification at ABB, while Michel Serres is VP Innovation and Digital North America at ABB

CEMI to bolster underground mining network with help of Mayhew Performance

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Canada’s national Centre for Excellence in Mining Innovation (CEMI) has welcomed Mike Mayhew’s Mayhew Performance Ltd as a CEMI Associate.

Mike Mayhew and Mayhew Performance bring over 28 years of mining experience and a wide network across Canada to CEMI, the centre said.

“In particular, CEMI will leverage Mayhew Performance Ltd’s network and underground operations industry connections,” CEMI said. “Mayhew Performance Ltd has a proven track record of bringing to market small to medium sized enterprises driving innovation in the areas of battery-electric vehicles all the way to adoption by mining companies.”

Mayhew Performance is currently working with Stacktronic to repurpose and electrify a personnel carrier for use in the underground mining sector ahead of the MINExpo conference in September.

Mike Mayhew said: “I am excited to be part of the CEMI Associate team as we continue to expand battery-electric vehicles to achieve my personal goal of ‘zero emissions’ in underground mining. The CEMI team offers a solid platform and a wide range of industry experience, knowledge and skills that complement Mayhew Performance Ltd as a strategic partner.”

Charles Nyabeze, VP Business Development and Commercialisation at CEMI, said: “Onboarding organisations like Mayhew Performance Ltd into our network allows CEMI to increase its capacity to better serve the global mining innovation and technology development ecosystem. In addition, CEMI believes in leveraging local assets. We see Mayhew Performance LTD as a strategic addition to how we deliver value to all our clients.”

Nouveau Monde Graphite advances Matawinie electrification strategy

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Nouveau Monde Graphite says it has mandated Hydro-Québec to carry out a preliminary project encompassing the development, installation and operation of a 120 kV electrical line that will supply its Matawinie mine site and help the company meet its carbon-neutrality targets.

The goal is to connect the Matawinie project mine and concentrator, in Quebec, Canada, to the power network via a dedicated line that will enable the full electrification of its operations – a world first for an open-pit mine, according to NMG.

During the design phase, the technical, financial and environmental aspects, as well as the construction schedule, will be defined for the line. Hydro-Québec, Canada’s largest electricity producer and one of the world’s largest producers of hydroelectricity, will begin its studies and then issue public communications about the project in the coming months. The 120 kV line is expected to be powered up for the start of the mine’s operations in 2022, NMG said.

NMG said: “With its dedication to stringent sustainable development standards, Nouveau Monde is committed to having both its heavy equipment used for mining operations and its ore concentration and processing activities become fully electric within the first five years of production.”

The planned electrical line will supply power to support this operating model, which will reduce the CO2 emissions of the mine by more than 300,000 t over its lifetime, the company added.

Eric Desaulniers, President and CEO of Nouveau Monde, said: “The preliminary project is an important step in our electrification strategy, as the power line will guarantee a reliable, affordable and dedicated supply of renewable energy. This will give us a competitive advantage that lets us bring to market a product with the smallest possible environmental footprint.”

Desaulniers added that the company is having “positive discussions with commercial partners” to develop an electric fleet that is adapted to its property’s open-pit mining conditions.

The detailed engineering work is progressing in line with these goals.

“From mine planning to shift scheduling that takes into account recharge cycles, Nouveau Monde and its consultants are reinventing industry conventions to create the mine of the future,” it said.

NMG and Hydro-Québec have already partnered to research and develop graphite anode materials used to make lithium-ion batteries. The graphite developer also holds an operating licence from Hydro-Québec’s Center of Excellence in Transportation Electrification and Energy Storage to commercialise battery material technologies and position Quebec in the lithium-ion battery value chain.

Matawinie, in Saint-Michel-des-Saints, Quebec, is expected to start up in 2022. A 2018 feasibility study revealed strong economics for the project, with projected high-quality graphite concentrate of 100,000 t/y over a 26-year period.

Barrick trialling autonomous and battery-electric tech at North America mines

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Barrick Gold’s automation and electrification efforts look to be gaining pace, with the leading gold miner revealing it has been testing out new technology at some of its operations in the US and Canada.

In its recently released annual report, Barrick said the first stage of a project designed to retrofit an autonomous system at its Carlin gold mine, in Nevada, had been completed successfully.

Matthew Majors, Open Pit Operations Superintendent at Carlin Surface, said in a presentation last month that multiple underground evaluation deployments, surface drilling OEM evaluation, and non-OEM surface production haulage options had been evaluated across the Barrick and Newmont jointly-owned Nevada Gold Mines business.

While the company didn’t provide any more details on the project, Barrick has previously leveraged ASI Mining’s OEM-agnostic autonomous solution at its jointly-owned South Arturo gold operation, also in Nevada. This saw the completion of a proof of concept (POC) using five haulage units “that have delivered over 5.5 Mt faster than any other similar POC in the industry”, Barrick said last year.

At Kibali, in the Democratic Republic of the Congo, which remains a world leader in underground automation with multiple autonomous machines operating on the same haulage level, the company recently completed a trial to use this technology on the mine’s production levels. This means a single operator can now control up to three machines acting semi-autonomously in different zones, Barrick said.

It added: “An additional system, which will provide real-time visibility of the underground operations, including personnel and equipment tracking, is currently being commissioned.”

And, lastly, on the electric vehicle front, the company said its Hemlo gold mine, in Ontario, Canada, has introduced a battery-powered development drill “as a first step towards establishing the potential of this new technology”.

Hemlo recently moved from a combined open-pit and underground owner-operated mine to an underground-only contract mining model as part of a plan to transition Hemlo into a Tier Two asset with a life of mine well into the future.

Barrick’s Turquoise Ridge gold operation is also evaluating new battery-electric technology, with the company confirming a battery-powered underground haul truck is being trialled at the mine.