Tag Archives: Yamana Gold Inc

Redpath continues mechanised sinking evolution with S20+ deployment at Odyssey

Automation, Explosives and blasting, Mine shafts and equipment, Mining equipment, Mining services, Precious metals, , , , , , , , , , , , , , ,

Redpath is continuing its focus on mechanised shaft sinking operations, with the latest example being the planned use of the hydraulic shaft mucker S20+ at the Canadian Malartic Partnership’s (CMP) Odyssey gold project in Quebec, Canada.

Redpath Canada was recently contracted by the CMP to sink a 6.5-m diameter, 1,800-m deep concrete lined shaft at Odyssey, a project that has the potential to become one of Canada’s largest and most technologically advanced underground gold mines.

CMP, which is 50:50 owned by Yamana Gold Inc and Agnico Eagle Ltd, previously laid out plans to extract 19,000 t of ore at an estimated grade of about 2.75 g/t gold and roughly 5,000 t/d of waste rock during peak operations at Odyssey. The ore will be processed at the operation’s existing plant, which will eventually be adapted to the future mine’s needs including shifting from 57,000 t/d to 20,000 t/d. The ore will be hauled to surface using Blair production hoists with use of both shaft bottom and mid-shaft ore handling systems.

The sinking concept at Odyssey includes the use of the S20+, which was built by Redpath Deilmann in Germany. A previous iteration of this machine, the S20, was used with success on four shaft projects in both soft rock – with an integrated tool package – and hard rock.

The S20+ offers similar capacity/productivity to a North American pneumatic telescopic boom mucker but with a much easier learning curve for operators, according to Kevin Melong, Vice President – Shafts and Technical Services, at Redpath Canada.

Unlike the RD S100, which can move independently of the galloway within the shaft via a telescopic boom, the S20+ is connected to the galloway, requiring the lowering of the galloway to move the mucker into position for mucking.

Melong added: “The S20+ does present some potential for concurrent mucking when in and around the shaft station construction/excavation, but, in general, does not act independent of the stage as in the S100 design.”

Fitted with a bucket as standard, the S20+ offers a maximum digging depth of 7.96 m and a bucket volume of 560 litres. It also offers good flexibility, with the bucket capable of six rotations per minute.

Alongside the S20+ and the aforementioned S100, Redpath has been mechanising the shaft sinking process in mining through the use of large-diameter raiseboring equipment and operation of Herrenknecht’s Shaft Boring Roadheader (in soft-to-medium rock). The company is also working with Herrenknecht on the development of the Shaft Boring Cutterhead, a machine developed for medium-to-hard rock applications up to 250 MPa UCS.

Yamana ups its climate action ante, considers further use of BEVs, automation

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Yamana Gold Inc has announced the outcome of its foundational work on its Climate Action Strategy, raising its climate action ambition by adopting a 1.5ºC target compared to pre-industrial levels and laying the groundwork for the incorporation of more renewable energy sources and battery-electric vehicles at its mines.

The foundational work began in early 2021 and Yamana previously indicated it would complete its work and establish science-based greenhouse gas (GHG) abatement targets by the end of the year. This has seen the company determine base year emissions, emissions forecasts, GHG abatement pathways for Scope 1 and 2 emissions, and physical and transition risks aligned with the Task Force on Climate-related Financial Disclosures (TCFD).

After conducting top-down and bottom-up GHG reduction opportunity assessments at each operation, Yamana has raised its ambition from a 2ºC-aligned target in early 2021 to a 1.5ºC target.

Work has been performed in conformance with evolving international best practice, including the GHG Protocol, Science-based Targets Initiative (SBTi) guidelines, and the Mining Association of Canada’s Towards Sustainable Mining Climate Change Protocol.

Based on the company’s analysis of a 1.5ºC temperature scenario, an annual emissions reduction of approximately 4.2% will be required until 2030. Yamana has concluded it will be able to meet these reduction targets by its 2030 target through a focus on efficient, high-grade underground mines and operating in jurisdictions that have a large proportion of available renewable, green electricity.

A newly signed power purchase agreement at its Minera Florida operation (Chile), scheduled to become effective in 2022, will provide 100% renewable electricity over the next five years. When coupled with similar agreements at Jacobina (Brazil, pictured) and El Peñon (Chile), approximately 85% of the company’s gold-equivalent ounces will be produced with renewable energy by the end of next year.

As part of its previously announced growth plans at Wasamac (Canada), Odyssey (Canada) and Jacobina (Brazil), Yamana is evaluating opportunities to further reduce its GHG emissions by investing in battery-electric vehicles, automation and other emerging technologies. Meanwhile, the company’s near-term growth in both Quebec and Brazil will leverage electrical grids that have a high proportion of green, renewable energy. Hydroelectric and other forms of non-fossil fuel energy constituted more than 99.9% of the Quebec grid energy in 2020, it said.

In 2022, the company will continue to refine its analysis and transition to a more operations-focused approach as it continues work to identify and assess additional opportunities to reduce GHG emissions. The company will also begin to define its Scope 3 GHG emissions, including those from its 50% owned Canadian Malartic Mine.