Tag Archives: Moranbah

BHP partners on OTR tyre recycling and repaving project in Queensland

In a Queensland first, crumb rubber created from giant mining tyres has been used in a trial to resurface one of Queensland’s major highways, BHP reports.

The trial was a collaboration between the Queensland Department of Transport and Main Roads (TMR), BHP and the Australian Flexible Pavement Association, with the aim to investigate if a crumb rubber modified binder made from a 100% OTR mining tyre could be used to construct a spray seal for Queensland roads.

Two giant BHP mining tyres, each over 4 m high and weighing 4.2 t, were used in the trial.

Although OTR tyres make up to 25% of ‘end of life’ tyres in Australia each year, OTR tyres are only 4% of the tyre waste rubber that is recovered.

The recycling process started with cutting up the tyres to remove steel and fibres, followed by crushing and crumbing the rubber into crumb of a suitable size. The rubber crumb was then bagged ready for transport to the bitumen binder production site. The crumb was blended into the binder, which was then transported to its final destination for spraying onto the road surfacing.

One giant mining tyre, in this context, provides 3.55 t of crumb rubber, able to seal up to 3.5 km of rural highway, BHP says.

The Peak Downs Highway where the repaving process took place links the towns of Mackay and Clermont and is the main link between Queensland’s Whitsunday Coast and the Central West region of the state near Moranbah.

Acting BMA Asset President, Tim Day, said the collaborative approach provides the mining industry a sustainable way to reuse tyre waste that would otherwise end up in landfill.

“It will have a positive impact on the environment, as more than 6,000 tonnes of tyres can be used to seal roads,” Day said. “This is a great example of how the by-products of mining can be used to positively affect the local communities where we operate, and we look forward to exploring how we can now further expand this trial to other road surfaces around the country.”

Lydia Gentle, Manager – Portfolio Delivery at BHP, was at the forefront of the trial saying she’s proud of the final outcome.

“It was a fantastic collaboration between BHP, TMR and our industry partners, and marks an exciting start to a more sustainable future for our tyre waste,” Gentle said.

Since completion, the highway surfacing has performed very well in Central Queensland summer heat under the intense mining traffic and continues to be monitored, according to BHP.

Anglo American restarts longwall mining operations at Grosvenor

Anglo American plc has announced the safe restart of its Grosvenor metallurgical coal mining operation in Queensland, Australia, more than 20 months after a methane explosion that injured personnel led to longwall activities being suspended.

Anglo American received confirmation from the regulator, Resources Safety and Health Queensland, on February 16, 2022 that longwall mining operations could now recommence following the gas incident in May 2020.

Tyler Mitchelson, CEO of Anglo American’s Metallurgical Coal business, said: “We have been working towards a safe restart at Grosvenor for several months and today we are up and running having received our regulator’s approval last week. Over the past 18 months, we have worked with leading industry experts and invested significantly in automation technology, remote operations, gas management and data analytics, introducing a number of advancements in the
way underground coal mines can operate.

“Nothing comes before safety and I thank our workforce, our local stakeholders and our customers for their patience and support as we bring Grosvenor back into production.”

Last year, Anglo American Australia committed another A$5 million ($3.8 million) towards improving safety at its underground coal mines in the country following the release of recommendations from the Board of Inquiry’s report into the Grosvenor gas incident.

Following confirmation of the restart at Grosvenor, while export metallurgical coal production guidance for 2022 is unchanged at 20-22 Mt, due to the impact of COVID-19 in early 2022 and a later than expected restart of operations at Grosvenor, production is expected to be towards the lower end of the guidance range. As a result, unit cost guidance for 2022 is revised to around $85/t (previously circa-$80/t and compared to 2021 unit costs of circa-$105/t). These
figures are subject to the extent of any further COVID-19 related disruptions.

Anglo American takes to tablets at Australia UG coal mines

Anglo American says it has launched Australia’s first electronic tablet device certified for use in underground coal mines at its Moranbah North mine, in the Bowen Basin of Queensland.

The introduction of these tables represents a major step forward in the company’s aims to digitise its operations, according to Tyler Mitchelson, CEO of Anglo American’s Australian business.

He added that digitisation was a key part of the company’s FutureSmart Mining™ approach, which applies innovative thinking and technological advances to address mining’s major challenges.

While standard tablets have been used underground at many mines around the world for at least a few years, it is the presence of potential explosive gas mixtures in some underground operational environments – coal, in particular – that inhibits any device being taken below ground that does not meeting ‘intrinsically safe’ regulatory approval. This is due to the potential risk of ignition from energy sources within such devices (eg standard tablets and smart phones).

Mitchelson said: “Following the successful launch at Moranbah North mine, we are now moving towards rapid deployment across all our underground sites including our newly-approved Aquila mine, which will be developed as one of the most technologically advanced underground mines in the world.

“The tablets capture and share real time production, safety and environmental monitoring information with operators, ensuring critical information is readily available to key personnel and removing the need for paper records.”

They also provide direct access to the company’s Safety Health Management System and can be used as a portable video communication device (via Skype) to instantly access personnel working at the surface level, according to Mitchelson. “This will accelerate trouble-shooting and can also be used as a live video link in case of emergencies.”

He added: “Any delays or challenges can be reported and addressed on-the-spot to reduce lost production time, instead of relying on traditional communication methods such as phone calls, underground travel or hard copy reports being submitted and reviewed at the end of a 12-hour shift.”

The tablets are already enabling improved communication and information sharing underground, Mitchelson said. This should ultimately lead to safer, more productive mining, he added.

The introduction of underground tablets followed significant work towards automating longwall operations and digitising the company’s mines, according to Mitchelson, with Anglo American recently completing its first pilot longwall shear from an above-ground remote operating centre at the Grosvenor mine.

The device was developed in collaboration with product manufacturer, Bartec, and tested to achieve certification with the Queensland Government’s Safety in Mines Testing and Research Station, the company said.

Executive Head of Underground Operations in Australia, Glen Britton, said implementation of the tablets followed a successful pilot earlier this year at Moranbah North mine, which was already receiving positive feedback from operators.

“Each week at Moranbah North mine, around 400 statutory reports and 2,500 maintenance work orders are generated. The team there aims to be paperless within two years, and the introduction of these tablets will enable us to remove underground paperwork and transition to electronic storage of statutory and production reports,” Britton said.

“Over the last five years, we have invested considerable resources in the development of this technology, to ensure the product was fit-for-purpose. We sought out a manufacturing partner to help create a new technical solution for managing our data, undertook an extensive certification process and improved underground Wi-Fi capabilities at the mine.”