Tag Archives: drilling

NRW subsidiary wins drill and blast contract at Talison’s Greenbushes lithium mine

Explosives and blasting, Mine operation news, Mining services, , , , , ,

NRW Holdings’ wholly-owned subsidiary, Action Drill & Blast Pty Ltd, has been issued a notice of award by Talison Lithium Australia for drill and blast services at the Greenbushes lithium mine in Western Australia.

This award follows the longstanding relationship Action has with Talison Lithium since Action commenced drill and blast activities on site in 2011.

The seven-year (plus two-year option) contract is valued at circa-A$300 million ($213 million) over the initial period and is scheduled to commence in July 2023.

The scope of works under the contract include ore, waste, pre-split and RC grade control drilling together with loading, stemming and initiation of bulk explosives. Plant requirements for the project will be sourced from within the Action business together with new equipment capital expenditure of circa-A$30 million over the life of the contract, it said.

The contract will require a peak workforce of some 160 personnel, including the 56 currently employed on site.

Action said the majority of the workforce will be sourced from the local community, building on current relationships and training programs.

Together with its predecessor company, Talison Lithium has been producing lithium concentrates at Greenbushes since 1983, which are ultimately used in lithium-ion batteries. The Greenbushes project, directly south and adjacent to the town of Greenbushes in Western Australia, is a major supplier of lithium mineral concentrates.

Epiroc reinforces down-the-hole drill bits with new productivity tools

Equipment maintenance, Mining consumables, Mining equipment, Mining services, , , , , , , , ,

The launch of Epiroc DTH drill bits, Epiroc says, signals a new era for down-the-hole drilling, with increased productivity and profitability.

Thanks to a new design and the use of the new Epiroc carbide, these drill bits will last up to 20% longer compared with an older version of the company’s drill bits, according to the company.

An all-new face design results in optimised flushing and handling of drill cuttings, while the addition of more buttons on the drill bits increases the overall energy when drilling, Epiroc says.

There are also three different button shapes to choose from to tackle different drilling needs and types of rock: Epiroc Trubbnos, spherical and ballistic buttons.

On top of the new carbide inclusion, these DTH drill bits are produced with improved heat treatment and increased face hardness, resulting in a more durable, sturdier and robust bit, with increased service life, it added.

Fredrik Gransell, Global Product Portfolio Manager at Epiroc Rock Drilling Tools, said: “If we add up the new design features and the improved materials usage, it’s safe to say that Epiroc DTH drill bits will last up to 20% longer compared to an older version of our drill bits.”

Delaney Erickson, Global Product Manager DTH at Epiroc Rock Drilling Tools, added: “You can expect more drilled metres per shift from high-performing Epiroc bits, which is good for both your revenue and profitability.”

Longer service life also means fewer interruptions and more undisturbed drilling, one of the most sought-after improvements, Epiroc says. “Put simply, with less time spent lifting and changing heavy bits, workdays will not just be more productive, they will be more convenient too,” the company added.

Finally, Epiroc DTH drill bits reduce the customers’ footprints as they can drill more and still use fewer bits. As a result, less energy and raw materials are used to produce bits, with less waste and associated transportation.

MMG brings in new Sandvik equipment for owner-operator transition at Dugald River

Base metals, Mine operation news, Mining equipment, Mining services, , , , , , , , , , , ,

MMG Limited has acquired new underground equipment for its Dugald River zinc-lead mine in Queensland, Australia, as it gears up to make the transition from a contract miner-led operation to a run of mine (ROM) owner-operator model in 2023.

Among the purchases are three Sandvik DL421-15C longhole drills that will allow the team to drill holes up to 54 m in length and 115 mm in diameter.

A further seven Sandvik TH663i 63-t-payload underground haul trucks (pictured) have been purchased to support operations.

“These important acquisitions support Dugald River’s new operating model as ROM owner operator into 2023,” the company said.

Dugald River’s mining operations were previously overseen by Perenti-owned Barminco as part of a production and development contract which ends on December 31. Redpath Australia was awarded a new underground mining services contract at the mine, earlier this year.

Mota-Engil seals Endeavour Mining Lafigué gold project contract

Mineral project development, Mining services, Precious metals, , , , , , , , , , , ,

Portugal-based contract mining firm Mota-Engil says its Africa subsidiary has signed a mining contract for the Lafigué project in Côte d’Ivoire worth some $600 million.

Lafigué is in the north-central part of the country, some 500 km from Abidjan, within the northern end of the Oumé-Fetekro greenstone belt.

Endeavour launched construction ofn its 80%-owned project in October, following completion of a definitive feasibility study that outlined a project able to produce approximately 200,000 oz/y at an all-in sustaining cost of $871/oz over its initial 12.8-year mine life. This featured a six-stage open-pit mine amenable to conventional open-pit, drill and blast mining.

Mining is due to occur in 10-m benches, with double batters to achieve the final 20-m bench heights. Ore mining will occur in three to four flitches, selectively using smaller loading equipment in order to decrease dilution. The study detailed that diesel excavators and trucks will be used for loading and haulage, with a fleet comprising 400-t-class face shovels to load 180-t capacity dump trucks for waste mining, and 200-t-class excavators to load 180-t capacity dump trucks for ore mining.

First gold production is expected early in the September quarter of 2024.

The mining services to be carried out by Mota-Engil under the contract includes mine development, pit dewatering, free digging, drilling, blasting, loading and hauling of ore and waste, it says.

The works are scheduled to start in December 2023 and will have a duration of 60 months.

Sandvik brings new Alpha thread profile to top hammer drilling applications

Equipment maintenance, Mining equipment, , , , , , ,

Sandvik Mining and Rock Solutions is launching Sandvik Alpha™ 340 asymmetric drilling tools, a new thread concept within its top hammer drilling offering for mining and tunnelling that replaces the Sandvik Alpha 330 thread system.

The new concept delivers up to 30% longer service life and increased productivity, according to the company.

The new Sandvik Alpha 340 thread is designed for use in face drilling and bolting in mine development and tunnelling, with hole sizes ranging from 43-51 mm. It features an entirely new asymmetric thread profile and has a larger diameter on the bit end thread of the drifter rod, reducing stress levels in critical areas, according to the company. Uncoupling is also easier than in previous designs, saving both time and effort.

Perhaps the biggest potential lies in the increased service life of the drill rod: with Sandvik Alpha 340, customers can achieve up to 30% longer service life – significantly increasing productivity and reducing cost per metre advanced, Sandvik says.

Robert Grandin, Product Manager Top Hammer Underground Rock Tools at Sandvik Mining and Rock Solutions, said: “The Sandvik Alpha 330 concept has served our customers extremely well over the past 20 years, ensuring highly reliable and productive drilling. With the launch of its successor, we create a revolutionising new way of working with top hammer rock tools, thanks to its asymmetric design. This new concept will deliver both immediate and long term value for our customers.”

The new thread concept also comes with improved drill bits. Sandvik’s PowerCarbide™ grades will be more widely available in the standard assortment, and many bits get design upgrades with more gauge angles or larger buttons for increased robustness.

“The new system is the driller’s choice,” Grandin said. “It is very user friendly and provides easy uncoupling – which saves a lot of frustration for the driller – but also increases productivity, leading to better drilling results.”

The new Sandvik Alpha 340 thread concept will replace its predecessor Sandvik Alpha 330 in a phase-out process over the coming quarters.

Foraco’s drilling team extends stay at Vale Canada operations

Base metals, Mine operation news, Mining equipment, Mining services, Water management, , , , , , , , ,

Foraco International, a provider of mineral and water drilling services, has announced a series of major contracts with Vale Canada for the provision of exploration, definition drilling and large diameter rotary drilling.

The exploration and evaluation drilling services – both surface and underground – are key services for Vale operations and include drilling at the Voisey Bay mine in Labrador, Copper Cliff and Coleman mines in Ontario, as well as at Thompson mine, Manitoba, the company said. All operations involve deep directional diamond requiring a total of 30 rigs, and have a total face value of $55 million.

Daniel Simoncini, CEO of Foraco, said: “We are partnering with Vale in Canada since 2007 and developed an excellent relationship with this prestigious client which was one of the very first to test us for our deep directional drilling technology. This is a great reward for all our staff, engineers, field crews and support teams.

“As already stated before, we believe long-term relationships with leading global mining companies like Vale are an efficient way to increase our business model resilience, ensure a stable and fair financial return while providing good quality professional life to our employees with who we can share a time horizon long enough to develop them, train them and make them safer and happier.”

Zinnwald striving for battery-electric circularity with lithium project development

Energy minerals, Environmental, Mineral processing, Mineral project development, Mining equipment, Mining services, Power supply for mines, Sustainable mining, , , , , , , , , , , , , , , , , , , ,

The development of the integrated Zinnwald lithium project in Germany could see the incorporation of a battery-electric fleet of LHDs and the return of metal production to a region of saxony with mining history dating back to the Middle Ages.

The London-listed owner of the project, Zinnwald Lithium Plc, has just released a preliminary economic study on its namesake project focused on supplying battery-grade lithium hydroxide to the European battery sector.

As with any responsible battery metal project being developed today, the project’s ‘green credentials’ are being considered even at this early stage.

Zinnwald Lithium has been keen to flag these, mentioning the project is located close to the German chemical industry, a fact that should enable it to draw on a well trained and experienced workforce with well-developed infrastructure, plus reduce the ‘carbon footprint’ of the final end-use product.

This focus will see all aspects of the project – from mining through to production of the end product – located near to the deposit itself.

Zinnwald Lithium also said the project has the potential to be a low- or ‘zero-waste’ project, as the vast majority of both its mined product and co-products have their own large-scale end-markets.

This could see it produce not only battery-grade lithium hydroxide monohydrate products, but sulphate of potash (SOP) for the fertiliser market and precipitated calcium carbonate (PCC) – the latter being a key filling material in the paper manufacturing process.

The project now includes an underground mine with a nominal output of approximately 880,000 t/y of ore at an estimated 3,004 ppm Li and 75,000 t/y of barren rock. Processing, including mechanical separation, lithium activation and lithium fabrication, will be carried out at an industrial facility near the village of Bärenstein, near the existing underground mine access and an existing site for tailings deposition with significant remaining capacity.

With a 7-km partly-existing network of underground drives and adits from the ‘Zinnerz Altenberg’ tin mine, which closed in 1991, already mapped out, the bulk of ore haulage is expected to be via either conveyor or rail

The nominal output capacity of the project is targeted at circa-12,000 t/y LiOH with circa-56,900 t/y of SOP, 16,000 t/y of PCC, circa-75,000 t/y of granite and 100,000 t/y of sand as by-products.

The company is looking to complete the ‘circularity’ dynamic in its fleet and equipment selection, according to CEO, Anton Du Plessis, who mentioned that electric LHDs could be used to load and haul ore to an ore pass in the envisaged operation.

He said the cost estimates to use such equipment – which are factored into the project’s $336.5 million initial construction capital expenditure bill – have come from Epiroc, which has a variety of battery-operated mobile equipment.

“The base case is battery-operated loaders,” he told IM. “The final selection will be based on an optimisation study where, in particular, partly trolley-fed haulage systems will be investigated.”

Forms of automation are also being studied, Du Plessis said, with the caveat that “only select technologies we consider proven” will be evaluated.

Zinnwald Lithium is also looking at electric options for long-hole drilling underground, with both battery-based units and cabled versions under consideration and requiring firming up in the optimisation study.

With a 7-km partly-existing network of underground drives and adits from the ‘Zinnerz Altenberg’ tin mine, which closed in 1991, already mapped out, the bulk of ore haulage is expected to be via either conveyor or rail. The former, of course, will be powered by electricity, but the company is also considering potential battery-electric options for the latter, according to Du Plessis.

The company is blessed with existing infrastructure at the mine, which should help it in advancing the project at the pace its potential end-use manufacturing suppliers would like. It is already evaluating options for the construction stage – with an engineering, procurement and construction management contract the most likely option – and it has plans to conclude a feasibility study by the end of next year.

Du Plessis said while most of the fixed assets have been removed or were deemed outdated a long time ago from the former operating underground mine, other infrastructure was in good shape.

“The excavations, main level, underground workshop, ventilation shafts and, particularly, 2020 refurbished access tunnel provide a very good starting point for our project,” he said. “The access tunnel was originally constructed for dewatering the old mine and, therefore, the mine and the tunnel have been maintained very well.”

The company is now shifting to the bankable feasibility study and currently selecting partners for the project.

With what it calls a “simple, five-stage processing” route confirmed by test work for the extracted material at Zinnwald, the company is looking to select OEMs with the optimal concept for the project, Du Plessis said.

“In the PEA, mineral processing equipment cost is based on Metso Outotec estimates, pyrometallurgy is based on Cemtec technology, and hydrometallurgy is based on various providers’ technology,” he clarified.

Geomagnetic Design looks to revolutionise RC and diamond drilling with GM1 rig

Mineral exploration, Mining equipment, Mining services, Sustainable mining, , , , , , ,

Emerging drill rig manufacturer, Geomagnetic Design has announced results from field trials on its specialty, patented RC and diamond GM1 drill rig.

Now in advanced stages of research and development (R&D), field testing in Western Australia’s Pilbara Region has confirmed the drill rig’s ability to halve the carbon footprint of traditional exploration drilling programs, with exceptional operational and environmental outcomes, according to the company.

Of note, the GM1’s performance across exploration drilling programs at six separate sites across the state showed a significant reduction in fuel consumption of up to 400 litres per 11-hour shift at RC configurations, and 60 litres per 11-hour shift at diamond configurations, as well as reducing ambient noise emissions.

The GM1 can also commence drilling in RC mode, and change to diamond coring within three hours, a significant reduction compared with current market changeover configurations, which typically take between 1-3 days, Geomagnetic Design says.

Commenting on the driving factors for innovation, Geomagnetic Design Founder and General Manager, Darren Papst, said: “Drillers are facing growing scrutiny and pressure from governments, investors and communities to exceed environmental considerations in their program design. We made it our business to address a multitude of performance factors that have never been achieved in one drill rig.

“Once our R&D is complete later this year, our solution will be the first of its kind, an ‘all-in-one’ RC and diamond rig that delivers reduced fuel consumption, carbon output and noise emissions all while covering more ground, with less holes and less metres.”

Designed and manufactured at the company’s headquarters in Perth, the patented blueprint for the GM1 uses a hydraulic system, enabling the rig to operate with a drastically reduced carbon output (from 59 kg/h down to 29 kg/h) while still retaining the same operational capacity as competitor rigs, the company says.

As well as halving carbon emissions, the physical machine footprint is substantially less than other drill rigs – measuring just 2.5 m x 3 m. The GM1 rig requires support from only one air truck, where competitor rigs are normally accompanied by two to three large trucks, it says.

Unique to the GM1 drill rig is its ability to conduct shallow angle RC drilling on 2 axes. This capability has been addressed during R&D and, if successful in future trials, will provide a cheaper form of drilling that allows clients to cover more ground with less holes and less metres, the company said.

The concept of a magnetically-driven drill rig has been a long-time plan of Papst’s.

“I began ideating the GM1 drill rig years ago when I noticed a gap in the market between having a superior-functioning rig versus having a sustainable, environmentally-designed rig.

“This current drill rig that we aim to go to market with has phenomenal fuel efficiencies, but we don’t plan on stopping there. Phase two of our engineering process will involve removing the need for diesel altogether with the use of a magnetic drive in its place.”

If the project continues to move at the expected timeline, Geomagnetic Design’s GM1 rig could be commercially available as soon as December 2022, the company says.

BHP reaches autonomous drilling milestone at WA iron ore operations

Automation, Explosives and blasting, Mine operation news, Mining equipment, Mining services, Mining software, Steel and iron ore, , , , , , , , , , , , ,

BHP’s Western Australia Iron Ore division has reached a significant milestone, with its drills operating autonomously for more than 479,607 hours, drilling more than 25 million metres, the company said.

WAIO’s remotely operated drilling program commenced at Yandi in late 2016 and has since expanded to a total of 26 rigs across five Pilbara mine sites.

The rigs are all controlled remotely from the Integrated Remote Operations Centre (IROC) in Perth, Western Australia.

WAIO Asset President, Brandon Craig, said: “This is an exciting milestone in WAIO’s autonomous journey and one we should all be proud of.

“The autonomous drilling program sought to eliminate the risk of safety incidents and serious injuries to our people and, by removing them from the drilling frontline, we’ve also seen an increase in overall drill productivity.”

WAIO now has one of the biggest autonomous drill fleets in the world – which is managed by 32 crew members and one engineer all based at IROC.

IPRO Control Operations Manager, Clayton Hanrahan, added: “This achievement was made possible by a huge team of stakeholders, including the original Project Team, Technology, our vendor Epiroc, IPRO, IROC Drill and Control, all of our site partners in the Pilbara Drill and Blast teams and many more.”

Congratulations to everyone involved on reaching the milestone of autonomously drilling more than 25 million metres.

The automation journey begain with Yandi completing a successful 18-month trial of three autonomous drill rigs, paving the way for a staged approach across other WAIO mine sites.

Mining Area C introduced autonomous drilling in January 2017 before, in October 2017, the technology was implemented at Newman’s Eastern Ridge mine. In December of that year, Jimblebar introduced autonomous drilling and, in March 2018, Newman’s Whaleback mine implemented autonomous drill rigs. The journey has been rounded out by, in 2020, the introduction of autonomous drill rigs at South Flank, making WAIO’s drill rig program fully autonomous.

Sandvik helping facilitate Rocksure’s mining services growth in Ghana

Mining consumables, Mining equipment, Mining services, Precious metals, , , , , , , , ,

Rapidly growing mining services provider Rocksure International in Ghana, Africa, has had a 100% Sandvik drill rig fleet since it was established and, according to the OEM, the partnership has been delivering spectacular results.

With drill rigs used in mining applications, the secret to success is to keep them in tip top condition throughout their working lives.

So, parts – who makes them and the service that comes with them – is of critical importance for these machines, Sandvik says.

By adopting the best work practices and latest premium equipment, Rocksure has gone from two drill rigs and eight employees when it was established in 2009, to today’s fleet of over 20 rigs and 1,200 workers. In the process, the company has been winning work that was once the preserve of Western multinationals.

In 2020 Rocksure delivered some 50 Mt of material to its customers in Ghana’s gold fields and is soon to be working on a major bauxite project in the West African country.

Partnership is the new leadership

Part of Rocksure’s strategy is to partner with leading equipment brands – and its fleet now includes 123 pieces of heavy equipment, all from the biggest names in the mining industry.

All of its drill rigs are from Sandvik, all of which have been supplied with comprehensive parts, service and training support bundles, the OEM says.

The predominant machine used by Rocksure is the Sandvik Pantera DP1500i. It is a hydraulic top hammer drill rig designed for production or pre-split drilling in open-pit mines, drilling holes with a diameter of 89-152 mm. The company also has a Sandvik DE881 multipurpose exploration rig.

“We work closely with clients like Rocksure to understand their needs,” Daniel Korsah, Sandvik Business Line Manager for Surface Drilling in West Africa, says. “We look at a long list of site variables, including blast efficiency, hole depth, length, type of rock, etc – and that helps inform the type of equipment we recommend. But that is only half of the story – the aftermarket support package is also vital to customer success.”

Fellow Business Line Manager Parts & Services, Ricus Terblanche, added: “It’s our job to make sure the rigs maintain their productivity targets, reduce costs and help the customer be more profitable. To ensure this, we look at the site data and use it to build a comprehensive parts list of the supplies that are likely to be needed. These parts are then ordered in conjunction with the machine sale, and both delivered to site at the same time. For major projects we can put large parts stocks in place, from which Rocksure can draw using a vendor-managed inventory approach. But our support bundles are much more than parts and include machine operation and safety training.

“We would never sell a machine unless we were sure the customer could operate it effectively and safely and had the skills and resources to support it.”

A recent sale of Sandvik Pantera DP1500i machines saw Sandvik support Rocksure with a four-week intensive classroom and practical operator and technical (maintenance) training, along with three months of asset support. This involved technicians being on site 100% of the full time, providing on-the-job coaching and inspections to ensure the rigs are operating to their highest potential, Sandvik explained.

Predictive parts replacement

Using Smart Inspections supported by years of accumulated analysis on component lifespan, Sandvik can calculate predictive operating costs and recommend a parts replacement service policy before parts fail.

Typically, when the machine has reached 14,000 hours of operation, the Sandvik Pantera DP1500i’s operated by Rocksure undergo a comprehensive overhaul, which can include the installation of new engines, pumps, track frames and undercarriage parts. Adding new technology can bring the machines to a better-than-new condition, with a significant reduction in fuel consumption, according to Sandvik. The fitting of new monitoring systems also helps to give much greater visibility of drilling performance – data that can further help boost productivity.

Terblanche said: “Rocksure is the perfect customer. They are professional, experts in their local market and loyal towards Sandvik – as well as growing at a fantastic rate. We do our best to support them with all the tools at our disposal to maximise their production performance. It’s a great partnership – when Rocksure is successful, Sandvik is too.

“A local mining services supplier supported by a global equipment manufacturer is a winning combination.”