May 17, 2020

10 facts about the Brucejack gold mine as it passes midway on construction

gold mine
mining
brucejack gold mine
underground mining
Dale Benton
2 min
10 facts about the Brucejack gold mine as it passes midway on construction
Construction of the Brucejack high-grade underground gold mine has passed the halfway point as it edges closer to its 2017 completion date.

The mine, l...

Construction of the Brucejack high-grade underground gold mine has passed the halfway point as it edges closer to its 2017 completion date.

The mine, located in north-western British Columbia, is in development by Pretium Resources Inc.

Here’s 10 facts about the Brucejack gold-mine:

It is 100 percent owned by Pretivm

One of the largest high grading undeveloped gold projects in the world

Construction began in September 2015 and is targeted for 2017 completion

The full mine site consists of 122,133 hectares

A feasibility study in 2014 revealed Proven and Probable mineral reserves of 6.9 million ounces of gold (13.6 million tonnes grading 15.7 grams per tonne gold)

Brucejack, once completed and at full commercial production, will looks to produce around 2,700 tonnes of gold per day in the underground mine

The Brucejack property lies within the Hazelton group, an Early to Mid-Jurassic volcano-sedimentary sequence of rocks formed during the formation of the Stikina island arc.

Mining at Brucejack will be long hole stoping, which uses holes drilled by a production drill to a predetermined pattern as designed by a Mining Engineer.

The gold at the mine will be liberated through grinding and gravity separation, which means no acid separation whatsoever.

Brucejack is expected to employ 900 people during construction and 500 people per year over the life of the mine for an array of technical and non-technical jobs in both surface and underground operations

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Get in touch with our editor Dale Benton at [email protected]

 

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May 13, 2021

BHP, Rio Tinto & Vale launch Charge On Innovation Challenge

BHP
Vale
Rio Tinto
Charge On Innovation Challenge
3 min
BHP, Rio Tinto & Vale launch 'Charge On' Innovation Challenge - a competition for tech innovators to reduce truck emissions via electrification

Mining giants BHP, Vale and Rio Tinto have launched the 'Charge On' Innovation Challenge to solve one of the biggest challenges the industry faces today - decarbonising mining operations.

'Charge On' Innovation Challenge

In partnership with Austmine, Australia's leading mining equipment, technology and services industry association, founding patrons BHP, Vale and Rio Tinto have launched the competition to encourage technology innovators to develop new concepts for large-scale haul truck electrification systems. The main goal is cutting emissions from surface mining operations.

“The mining industry needs to be at the forefront of tackling the climate challenge. The Charge On Innovation Challenge is a great example of the current collaborative work being done by the mining industry and mobile equipment manufacturers to decarbonise mining fleets,” the trio said in a media statement.

“In addition to providing a zero-carbon energy source, the conversion of mobile mining equipment to battery-electric can potentially unlock value, as electric motors have fewer moving parts when compared to standard equipment.”

A number of non-traditional mining sector vendors are actively developing technologies that can assist in mine electrification. By submitting a Challenge to the market, the Patrons of Charge On expect to:

  • Demonstrate there is an emerging market for charging solutions in mining
  • Accelerate commercialization of solutions
  • Indicate to suppliers, the mining industry seeks interoperable solutions
  • Maintain multiple actors and competition in the supply chain
  • Integrate innovations from other sectors into the mining sector

"We expect some solutions identified in the Challenge could provide propulsion to existing diesel-electric trucks. This may present a pathway to early implementation for dynamic charging solutions," the trio said.

Charge On

Paris Agreement

Found patrons BHP, Vale and Rio Tinto are pledging their commitment to fighting climate change:

"The mining industry has an important role to reduce emissions and do our part to achieve the Paris Agreement goals to limit the impacts of climate change."

The Charge On Innovation Challenge asks vendors to present interoperable solutions that can safely deliver electricity to large battery-electric off-road haul trucks in a way that maintains or improves current productivity levels. Specifically, mechanisms capable of delivering in the order of 400kWh of electricity to each truck within a haul cycle (ie load, travel, dump, return, queue). The delivered electricity is to charge a battery, and if applicable directly propel the truck.

Austmine CEO Christine Gibbs Stewart commented: “We expect the Challenge will attract companies from a broad range of sectors including mining, automotive, aerospace, agriculture, and defence to deliver selected charging concepts to create a standard product that can interface with all trucks."

More information about the challenge will be released on May 18.

Electrification

The competition echoes growing efforts being made across the industry to tackle emmissions and promote electrification. In march this year, the Electric Mine Consortium was launched. It's founding members include Gold Fields, Dassualt Systemes and Sandvik who pledged their commitment to decarbonising mining operations.

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