radial stacker Archives - International Mining

Americas Gold and Silver says its Relief Canyon mine, in Nevada, USA, has declared commercial production, effective January 11, 2021.

The company poured first gold from the operation back in February 2020, but the failure of its radial stacker in May pushed the company’s initial commercial production guidance offline.

Its large radial stacker returned to operation on the Relief Canyon leach pad back in December, allowing ore placement to return to the targeted rate of around 14,500 t/d, up from the circa-7,250 t/d rate achieved with a temporary stacking solution.

The company is now targeting full ramp-up from the operation by mid-May 2021.

Americas Gold and Silver President & CEO, Darren Blasutti, said: “I am pleased to announce that Relief Canyon has achieved commercial production following a challenging 2020. The Relief Canyon team worked hard to overcome the common teething pains in commissioning a new operation, the impact of the COVID-19 pandemic, and the failure of our large radial stacker.

“I look forward to a successful 2021.”

thyssenkrupp is to make history in Australia, with plans to install KB 63-130 type gyratory crushers at the jointly owned Iron Bridge magnetite project, in Western Australia.

The company said its mining business unit had been awarded consecutive contracts to supply these two gyratory crushers and a radial stacker for Iron Bridge, which is a joint venture between Fortescue Metals Group subsidiary FMG Iron Bridge and Formosa Steel IB Pty Ltd.

Iron Bridge will be a new magnetite mine, around 145 km south of Port Hedland in the Pilbara region of Western Australia. Delivery of first ore is scheduled for mid-2022.

Johann Rinnhofer, CEO of thyssenkrupp’s mining business in Australia, said: “We are proud to be part of this project and excited to install two of thyssenkrupp’s next generation gyratory crushers here in Western Australia. These high capacity crushers are considered to be the largest and most powerful in the world and are unrivalled when it comes to crushing blasted hard rock and ore.”

The KB 63-130 type gyratory crushers will be the largest ever installed in Australia, according to thyssenkrupp, with the crushers processing raw iron ore material from the pit and transfering it to a receiving conveyor.

The slewing and luffing radial stacker, meanwhile, will be used to stack secondary crushed magnetite iron ore onto a stockpile at the mine.

The Iron Bridge project will deliver 22 Mt/y (wet) of high grade 67% Fe magnetite concentrate product, according to FMG.

The first stage of the project was completed successfully by building and operating a full-scale pilot plant at the North Star mine site. This pilot project included the use of a dry crushing and grinding circuit, which FMG plans to leverage in stage two.

The second stage of the project comprises the construction of a large-scale process plant, and port
infrastructure to support the production of 22 Mt/y (wet).

Americas Gold and Silver hits commercial mark at Relief Canyon gold mine

thyssenkrupp to deliver next gen gyratory crushers to Iron Bridge magnetite project