Tag Archives: De Beers

Metso equipment to rough up diamonds at De Beers Venetia mine

Comminution of minerals, Gem stone mining, Mine operation news, Mineral processing, Mining equipment, , , , , , ,

Metso is to install high-performance crushing and material handling equipment underground at the De Beers Group’s Venetia diamond mine, in South Africa, as part of an order booked in the September quarter.

In the throes of a transition from open-pit mining to underground operations, Venetia is reported to produce around 4 Mct/y, making it one of South Africa’s biggest diamond mines.

In 2013, an underground extension project commenced with plans to start producing carats in 2022, climbing to full production in 2025 and extending the mine life to 2046.

Metso said Venetia approached Metso to deliver two primary jaw crushers and a number of feeders. All the equipment will be installed underground, which is a very challenging installation, especially given the shaft constraints (dimensions) and weight limitations for transportation underground, the company added.

Venetia decided on Metso’s Nordberg® C Series™ jaw crusher range as the pinned and bolted design of the crusher allowed for the extensive disassembly, Metso said. “This enhances ease of transportation and installation, especially where there are critical space constraints such as an underground installation – as is the case with this project.”

The Metso apron feeders, meanwhile, are used for extracting or feeding ores that are wet, sticky, dry or even frozen.

Metal and mining companies collaborate with WEF on blockchain solutions

Environmental, IoT, Mining industry recognition, Mining services, Mining software, Sustainable mining, , , , , , , , , , , , , , , ,

Seven leading mining and metals companies have partnered with the World Economic Forum (WEF) to experiment, design and deploy blockchain solutions that will accelerate responsible sourcing and sustainability practices, the WEF reports.

The Mining and Metals Blockchain Initiative will pool resources and cost, increase speed-to-market and improve industry-wide trust that cannot be achieved by acting individually, according to the forum.

“It aims to be a neutral enabler for the industry, addressing the lack of standardisation and improving efficiency,” WEF said, adding that the intention was to send out a signal of inclusivity and collaboration across the industry.

Among the seven companies represented in this initiative are Antofagasta Minerals, Eurasian Resources Group, Glencore, Tata Steel Limited, De Beers and Anglo American.

The group will look to develop joint proof-of-concepts for an inclusive blockchain platform, which, over time, could help the industry collectively increase “transparency, efficiency or improve reporting of carbon emissions”, it said.

The WEF explained: “In many cases, blockchain projects to support responsible sourcing have been bilateral. The result has been a fractured system that leaves behind parts of the ecosystem and lacks interoperability.”

The new initiative is owned and driven by the industry, for the industry, according to the WEF, with members examining issues related to governance, developing case studies and establishing a working group. Key areas of collaboration and development could include carbon emissions tracking and supply chain transparency.

“They will work to use blockchain technology to increase trust between upstream and downstream partners, to address the lack of industry standardisation and to track provenance, chain of custody and production methods,” it said.

Jörgen Sandström, Head of the Mining and Metals Industry at the WEF, said material value chains are undergoing profound change and disruption. “The industry needs to respond to the increasing demands of minerals and materials while responding to increasing demands by consumers, shareholders and regulators for a higher degree of sustainability and traceability of the products.”

The WEF has offered its platform and expertise to help industry leaders better understand the impact and potential of blockchain technology, it said. “It will provide guidance on governance issues related to the delivery of a neutral industry platform and the expansion of members.”

The move was welcomed by industry partners, including Ivan Arriagada, CEO of Antofagasta Minerals: “We hope this collaboration and pilot will give us practical examples of how blockchain can increase efficiency of the supply chain management and improve interoperability; address certain supply chain management risks such as transparency and consumer trust; and unlock opportunities including integration of key data such on environmental impact such carbon emissions.”

Benedikt Sobotka, CEO of Eurasian Resources Group, meanwhile, said the collaboration around blockchain technology would help industry efforts to enhance responsible sourcing. “By working together, our goal is to develop solutions that can be adopted across the industry and value chain,” he added.

Ivan Glasenberg, CEO of Glencore, said the development of this technology can facilitate industry reporting to improve compliance across the supply chain.

TV Narendran, CEO of Tata Steel, said: “As a responsible player in the mining and metals industry, we are committed to build a sustainable future.”

Jim Duffy, CEO of Tracr (representing Anglo American/De Beers), said the company looked forward to collaborating with the consortium as Tracr begins to roll-out its connected supply chain platform for the diamond industry. “Lessons learned creating Tracr are highly relevant to the sustainable sourcing of all mining and metals,” he added.

ALE powers up De Beers offshore diamond mining vessel

Equipment maintenance, Mining equipment, Mining maintenance, Mining services, Undersea mining, , ,

De Beers recently turned to ALE to replace two engines on its Debmar Pacific mining vessel, in use at its offshore diamond operations in Namibia.

Since 2002, diamond mining operations in Namibia have taken place in larger volume offshore than onshore, as gemstones washed into the Atlantic Ocean over millions of years are dredged and processed. It’s an expanding market, generating over a 100 Mct/y, according to ALE.

When, as part of routine maintenance operations the Debmar Pacific mining vessel required removal and replacement of two engines, De Beers turned to ALE to ensure a swift and efficient job, the company said.

The company said: “As time in port at Cape Town was limited to just a few weeks, several other similar procedures were taking place at the same time, meaning this work had to take place under strict space limitations.”

Prior to the lift operation, ALE installed two custom-designed gantries on either side of the vessel parallel with the floor of its engine rooms. These gantries were enlarged at the client’s request, in order to provide better access to the engines, ALE said.

Each engine was then jacked-up to a height of around 1 m, using four 60 t jacks. A medium skid track measuring 25 m was then laid, from a position underneath the engine to the custom-designed gantry at the vessel’s exterior.

Each 38 t GE engine was then skidded the length of this track, where it was uplifted using a 400 t crawler crane and set down in a nearby storage area, ALE said. This procedure was completed in reverse in order to install both 80 t Wartsilla engines.

The company said: “ALE needed to liaise with several onsite authorities and contractors during the project, in particular during the construction of both access gantries. Having executed a large number of vessel upgrade procedures in the past, ALE was well-placed to advise on the lift procedure that would deliver the best value whilst upholding the highest standards of safety.”

The Debmar Pacific was built in 1977 and converted into a mining vessel during 1997. It will return to active service mining gemstones 24 hours a day, 365 days per year, once all maintenance operations on it are completed.

Drones continue to make mining activities safer, Anglo American says

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Anglo American, in its 2018 annual report, says its use of drones for safety, surveying and security is continuing to expand as it looks to remote-control more of its mining activities.

The company has used drones attached to manned aerial-reconnaissance planes for many years and, today, considers itself an industry leader when it comes to drone use.

Anglo said it has an expanding fleet of drones, from fixed-wing aircraft to quadcopters, with about 50 skilled operators and another 30 people working in drone maintenance across the group. This is spread across its platinum group metal operations in South Africa, the Kumba iron ore mines (also in South Africa), and at De Beers diamond asset sites in Canada, Namibia and South Africa.

“Drones are an important part of our drive to remote-control many of our mining activities while gathering enhanced data and real-time operational performance metrics,” Anglo said. “They provide rapid visual access and multiple views, with smaller drones being used to inspect confined spaces on mines and in processing plants, while bigger aircraft are able to fly at night and stay aloft for up to eight hours.”

Drones are being used in varied tasks such as exploration, mine mapping and calculating the volume of stockpiles, Anglo said, adding that they are proving to be cost effective.

“The deployment of drones is assisting in making our activities safer. Crucially, their use avoids the need for people in potentially hazardous areas,” the company said.

Drones are now being used to inspect and monitor high-risk areas, including stockpiles, mine slopes, ore passes, tailings dams and chemical-storage facilities, Anglo said. They can check for the presence of personnel in a blast area, and measure fragmentation or the direction of dust movement after a blast. By employing them in such applications, it removes the possibility of Anglo personnel entering dangerous areas.

Other applications the company is using them on include traffic management at operations, as well as monitoring rehabilitation activity, including in areas where it can be difficult and risky for people on the ground to gain access.

Frans Kruger, Anglo American’s Global Aviation Safety Principal, said: “Drones increase our safety and efficiency, and they let us take human beings out of potentially dangerous environments.”

Anglo concluded: “Drone technology is evolving fast and, as a responsible operator, we are working closely with other drone operators and South Africa’s Civil Aviation Authority, for example, to develop appropriate standards, while also serving with other mining companies on the technical advisory committee of the Flight Safety Foundation.”

De Beers to add Chidliak project to growing Canada diamond base

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De Beers has signed a pact to acquire Vancouver-based junior Peregrine Diamonds as the major looks to expand its Canadian business with the addition of the Chidliak project in Nunavut.

The C$107 million deal has been unanimously recommended by Peregrine’s board of directors to Peregrine shareholders with some 44 % of investors already agreeing to vote ‘for’ the transaction.

The Chidliak resource was discovered in 2008 and is located around 120 km northeast of Iqaluit, Baffin Island. A total of 74 kimberlite pipes have been identified, including the CH-6 and CH-7 pipes, which are the current focus of Peregrine’s Chidliak phase one development programme. This programme has an inferred resource in excess of 22 million carats.

Peregrine’s recent Chidliak preliminary economic assessment pointed to the high quality of the CH-6 deposit, in particular, according to De Beers.

“An estimated grade of 2.41 carats per tonne and a diamond valuation of US$151 per carat (equating to approximately US$360 per tonne) make CH-6 one of the most attractive undeveloped diamond resources in Canada,” De Beers said.

Peregrine also has exploration properties in Nunavut and the Northwest Territories.

Bruce Cleaver, CEO of De Beers Group, said: “The Chidliak resource holds significant development potential and will be an exciting addition to our portfolio.”

A strong outlook for consumer demand is leading the company to look at opportunities to invest in its future supply potential and boost its Canada portfolio, he added.

Kim Truter, CEO of De Beers Canada, said: “With the transformation of our company in Canada over the past two years, our focused investment in new and innovative mining methods, and our expertise in Canada’s arctic environments, we believe we are very well positioned to now develop the resource further.”

De Beers already operates the Gahcho Kué diamond mine in the NWT, which started commerical production last year and is expected to produce 54 million carats of rough diamonds over its lifetime.

The company, also, in March, signed an agreement with Mountain Province Diamonds (MPD) to incorporate all of properties owned by Kennady Diamonds – and purchased by MPD via a takeover of Kennady –into the Gahcho Kué joint venture, currently owned 51:49 by De Beers and MPD.

Completion of the deal is expected in September, subject to several conditions.