May 17, 2020

Hydropower Taking Over Compressed Air Within Drilling Applications

underground mining techniques
underground mining
4 min
New innovations drive cost and time efficiencies
Corporations and groups throughout the mining industry continue to dig deeper into innovations that could potentially improve efficiency and cost-effect...

Corporations and groups throughout the mining industry continue to dig deeper into innovations that could potentially improve efficiency and cost-effectiveness of their drilling operations. It is also the hopes of these mining corporations and groups that these improvements and new innovations could also help them to not only weather fluctuations regarding decreased demand in some markets, but, hopefully, help them to keep pace with growing demand in others.

Among the top factors that have continuously slowed mining companies and mining technology groups from not just developing these mining drilling operations, but actually bringing them to market for actual mining applications is safety. Mining operations pose extreme working condition and require an immense degree of dependable and stringent safety standards that must be upheld.

This is one reason why compressed air has been a very important source of power in virtually every type of mine for many years now. Compressed air continues to be applied to drilling in the mining sector as a source of power for drilling holes for blasting in underground mining. Not only that, but compressed air has also remained a go-to source of power for its flexible use with a variety of other applications both inside and outside the mines. For example, mucking machines, scraper-hoists and ventilation fans represent a few of the areas of application that take advantage of compressed air.

Up until recent history, compressed air has not just been the most popular choice for powering drilling and other applications throughout the mining industry, it has also been viewed as virtually the only true option. However, recent developments in mining technology now point to hydropower equipment as a much stronger, potentially viable alternative to compressed air. While hydropower in and of itself has been around for a significant amount of time, innovations regarding its application throughout the mining industry present some undeniable benefits well worth looking into for both small and large mining corporations.

“The biggest combined force driving the adoption of hydropower equipment in the underground mining industry – specifically in gold and platinum mines – is the need to move away from using compressed air and an understanding by industry that it must do so,” says hydropower specialist Hydro Power Equipment (HPE) Innovation Manager Peter Fraser.

When compared to using compressed air in mining operations, Fraser points out a few key, unique advantages that the use of hydropower can deliver. “Hydropower equipment is energy efficient because of the intrinsic efficiency of the positive displacement of water hydraulics and the absence of leaks. It also has lower operating costs, as localized hydropower systems feeding a local network of small bore pipes on a half-level stope are noted as the lowest cost method to power all the operations required for conventional mining,” Fraser says. “Hydropower drilling has higher penetration rates than compressed air drilling, which allows for a quicker task and, subsequently, a reduction in the risk of a lost blast and of unnecessary exposure time of drill operators on the face. Compliance with noise and other environ-mental requirements is yet another driving factor behind the adoption of hydropower in the platinum and gold mining industry,” he adds.

Fraser goes on to explain that hydropowered drilling rigs have achieved mainstream acceptance in man-free box-hole development and in flat-end development and hydro stoping, which uses either centralized or localized hydro systems. Other applications for hydropower in underground platinum mines include the establishment of hydropowered box-hole chutes, roof bolting and stope cleaning. What’s helping spread the application of hydropower is that small and large mining operations alike can take advantage, leaving behind the inefficiencies of compressed air. “For example, a new section in the mine could be developed as a stand-alone localized hydropower operation, while the compressed-air operation can be maintained for the existing operation,” Fraser says.

Recent, innovative developments of hydropower include more accurate and truer drilling. Among the many benefits offered by this is the quicker and safer development of box holes. Reef boring and long-hole stoping mining methods and equipment have seen significant improvements from hydropower applications as well. These developments have also led to less dilution of ore while improving the safety of miners having to enter stopes.

With immense benefits such as long straight holes, low energy consumption, and an oil-mist and dust-free working environment, we can likely expect a continued rise in the application of hydropower drilling throughout the mining industry. 

Share article

May 4, 2021

Axora launches global challenge for digital technology

2 min
Axora, the industrial B2B digital solutions marketplace, has launched 'The Axora Cost-Saving Technology Challenge' to discover game changing innovations

Axora is launching the world’s first international competition to discover new cost-saving digital technology for industrial companies, which can produce rapid benefits within a year.


The Metals & Mining and Oil & Gas sectors have recently experienced budget cuts of 20% on average, driven by a variety of factors including the global pandemic, slump in demand and price wars. The Axora Cost-Saving Technology Challenge aims to transform these industries by discovering innovative, digital solutions that reduce cost fast and pay for themselves, whilst achieving the same or improved productivity, health and safety and sustainability standards.

Digital Transformation

“While digital solutions can help to get work done quicker and more cost-effectively, they typically require a three-year ROI, and if there’s no flexibility in the budget, a full budget planning cycle is needed to get things moving”, said Dr. Nick Mayhew, Chief Commercial Officer, Axora.

“Yet, extra financial cost is often incurred in delaying digital projects, so customers have asked us to highlight solutions that can have an ‘in year payback’ whereby the cost spent on the solution and deployment will be more than recovered within the budget year - this accelerates the timeline and drives positive business impact, quickly.”

The Axora Cost-Saving Technology Challenge

Axora is keen to learn of any digital cost-saving innovation which: meets the 12-month payback timeframe; can be deployed in any part of the value chain including upstream, downstream or midstream oil and gas, metals processing or mining; and is ready for market. The Axora Cost-Saving Technology Challenge is open to entrepreneurs, start-ups, academics and sector leaders across the world. The competition will be judged by a panel of leading industry experts.

“We’re passionate about supporting our industries and customers through all forms of digital transformation and the cost-saving solutions we are searching for could also provide a lifeline to many mining and metals and oil and gas companies in the current economic climate,” added Dr. Mayhew.

Improving productivity, safety and sustainability

Up to ten finalists will be chosen to pitch their solutions at a digital pitch day later this year, after which Axora will validate the ROI models and vet the solutions. The winner will receive the ‘Axora Market Accelerator’ sales and marketing package worth £10,000. This includes a two-hour workshop, promotion through Axora’s thought leadership content and inclusion into its digital demand engines, providing the opportunity for the winning solution to benefit thousands of industrial companies. Entries are open until May 31. Full details of the competition including terms and conditions can be found here.

To learn more about the Axora B2B digital solutions marketplace read our feature in the latest issue of Mining Global magazine.

Share article