Search
Saturday, 15 December 2018

Welcome to OZ METS Hub

The one-stop solutions shop for all your mining needs. Featuring the best Mining Equipment, Technology and Services (METS) available in the world today.

Powered by Austmine, Australia’s leading METS industry association, OZ METS Hub is where you can find the most innovative, cost effective and value-adding mining technologies, equipment and services.
 
Find out about Austmine membership

 

Mining Solutions

Companies featured provide a wide range of solutions from asset management to ventilation equipment and water technologies. You will find information on small, agile tech start-ups, offering breakthrough innovations to well-known multi-national players with vast experience and a wealth of knowledge.

Improve Productivity

Whether your mining operation is open cut or underground, a block cave or a longwall, coal, iron ore or gold, there are companies who can help you improve productivity, reduce life-cycle cost and drive efficiency. All companies provide information on their capability, global reach, latest products and more.

Mining Industry News & Events

The 'Blonde Bomb' Clears the Way for an Innovation in Blasting
Austmine Limited
/ Categories: Press Releases

The 'Blonde Bomb' Clears the Way for an Innovation in Blasting

Dr Andrew Kettle, Mining3 Research Scientist

Toxic fumes produced by detonating explosives in both surface and underground mining could become a thing of the past if Mining3’s Alternative Explosives project continues to present impressive results. Over the past few years, research has been underway at Mining3 to deliver a hydrogen peroxide-based explosive which is non-toxic and presents a far safer and environmentally-friendly alternative to current blasting materials.

While the initial research confirmed ammonium nitrate-free explosives was a viable option, further investigation was required in fume monitoring, blasting capability, underground blasting applications, and alternative fuel formulations.

Toxic fumes produced by detonating explosives in both surface and underground mining could become a thing of the past if Mining3’s Alternative Explosives project continues to present impressive results. Over the past few years, research has been underway at Mining3 to deliver a hydrogen peroxide-based explosive which is non-toxic and presents a far safer and environmentally-friendly alternative to current blasting materials.

A blasting chamber was installed at the Pinjarra Hills facility in Brisbane, Australia to provide an on-site testing environment. Detonation monitoring confirmed that the post-blast fumes from hydrogen peroxide-based explosives did reduce exposure risk and delivered a significant reduction in toxic post-blast gases. Comparisons of 100g detonations between the hydrogen peroxide-based explosive and the bulk ammonium nitrate explosive (ANFO) revealed that the latter was associated with a maximum of 50PPM Nitrogen Dioxide (NO2) gases over 25 minutes, whilst the hydrogen peroxide-based explosive had no NO2 fume production.

Success was also achieved in underground mining with trials conducted at the Sandvik mine facilities in Tampere, Finland, where Mining3 researchers conducted underground burn cut and fume monitoring trials. Tests in high density (~1.07g.cc-1), hard volcanic rock revealed that hydrogen peroxide-based explosives obtained the velocity of detonation values in the vicinity of 4.7 km.s-1 and performed similarly to an Ammonium Nitrate Emulsion (ANE) product during comparative tests.  Gas monitoring data also indicate that the hydrogen peroxide-based explosives produced less toxic carbon monoxide post-blast fumes than the ANE product. Further trials, optimisation, and loading improvements are anticipated to further enhance detonation performance, and reduce re-entry time during operations.

In addition to the effective underground blasts, the production team proved that international borders are not a barrier to the technology. Local materials were tested and confirmed to meet the requirements for the alternative explosive formulations. The oxidising component, hydrogen peroxide, is manufactured around the world in industrial volumes for several industries and is already used in some mining operations for ore processing. The use of hydrogen peroxide at a concentration of 50% has been utilised for explosives testing as it has a wide commercial availability. Whilst higher percentages of hydrogen peroxide have been utilised in the past for explosives, in the interest of a bulk explosive, a 50% w/w percentage solution has adequately performed in blast trials.

The predominant fuel component, glycerol, likewise is available in commercial volumes. The sensitisation material, glass micro-balloons (GMB), required to enable detonation of a hydrogen peroxide-based explosive is readily obtained from a number of international companies. The low percentages of the sensitisation material used to achieve the desired density of the hydrogen peroxide-based explosive are comparable to, or less than what is required for an ANE product. In all, the alternative explosive formulation can be optimised for global application.

Finally, the investigation of inexpensive, alternative fuels for the hydrogen peroxide-based explosive technology, were identified thanks to a collaboration with Southern Oil. The aim was to replace the expensive glycerol fuel component with an inexpensive waste line from the oil refinery industry. The identification of refinery distillates as fuels have added stability, flexibility and cost reductions to the product.

It was this new alternative fuel-based formulation, designed by Dr Kettle – a research scientist at Mining3 – that was displayed at a National Explosive’s Forum in October 2018, Helidon, Queensland. At this event, the practical manufacture method was demonstrated which was followed by the detonation of 500g of the hydrogen peroxide-based explosive product. As the display, two prepared solutions – oxidiser and fuel phases – were combined and during mixing, activated to produce a hydrogel. The demonstration provided a chance for the mining industry to understand the denotation capability of this alternative fuel source which has maintained the product blast capability.

The next stages of the alternative explosives project include further applications in surface and underground mining and optimisation of formulations to meet the industry demands for commercial purposes. Commercial partnerships with material suppliers and manufacturing unit producers are currently being negotiated, and multiple trial sites are scheduled to progress the operational integration of this product into the mining industry. Mining3 is encouraging interested mining operations wanting to participate in trials and early uptake of this technology to contact us at –info@mining3.com. Ideally, the exploitation of this technology is for on-site production with manufacture-and-immediate-detonation applications.

Image


Print
146
Previous Entry RCT Leading the way in mining automation with new range
Return
Next Entry Maptek−MinLog partnership closes the gap between mine planning and production

Find Mining Technology & Services

Want information on a specific solution or challenge? Drop us a note and we’ll do our best to help you out!

Loading

News Headlines

Featured Members

OZ METS HUB FEATURES THE BEST MINING EQUIPMENT, TECHNOLOGY AND SERVICES (METS) AVAILABLE IN THE WORLD TODAY!

- OZ METS Hub

Looking to be included on the directory? Only Austmine members can be featured here,
so to learn more about how you can sign up, visit the Austmine website...

INTERESTING THINGS ABOUT AUSTMINE 2016/17

3000

EVENT ATTENDEES

25

PERCENT MEMBERSHIP GROWTH

8500

UNIQUE WEBSITE VISITORS

60000

INDUSTRY EXECUTIVES REACHED

CONTACT US

GET SOCIAL

Copyright © 2018 OZ METS Hub - Australian Mining, Oil and Gas Equipment, Technology and Services Hub Terms Privacy
Back To Top