This session will be offered in French and in English
Wednesday, November 23, 2022 – morning
Challenges and Innovations in Mining: Rock and Water
Opening of the session
Advances in LIBS for transferring industry 4.0 to the mining field: opportunities, challenges and future
The mining industry is facing the challenges of declining high-grade ore, commodity markets, cost factors and environmental considerations. There is an increasing need to drive down costs while improving efficiency and productivity through innovation, such as on-line analysis and control, automation and robotics, drilling and real-time decision support. In order to address these issues and embrace Industry 4.0, an ongoing effort towards the automation of traditional manufacturing and industrial practices, using modern smart technology, is underway to overcome these challenges. The mining industry is looking for practical solutions for developing more accurate and effective measurement and control technologies in order to monitor the feed quality and to improve the recovery efficiency, reduce the GHG emission and waste.
The Laser-Induced Breakdown Spectroscopy (LIBS) technique is a form of atomic emission spectroscopy of a plasma induced by laser on the material to be analyzed. LIBS has advanced over the last 50 years to become a successful emerging technology for numerous chemical analysis applications. The advent of new compact components (laser, spectrometer and detector) makes the technology more accessible in terms of robustness, low cost, analytical performances to deliver its benefits for real time analysis.
In this talk, we will give an overview of the LIBS technique and its development. We will present a critical analysis of its application for real time analysis in the mining value chain. We will discuss some breakthroughs at NRC for the real time analysis of precious metals, bitumen, mineralogy, etc., and their impact on the automation process in the mining field.
The challenges of mining support in a northern environment.
The Raglan mine is located in Nunavik where the permafrost reaches an average depth of 500 m. With the advancement of mining, the depth of the mines is now below the permafrost, which has led to changes in the mining support method. Friction bolts were replaced by reinforcing bars and resin-coated or cemented anchor cables. In this northern environment where underground temperatures are generally below freezing, the use of brine is required. In this presentation, we will discuss the management of support in relation to thermal constraints as well as corrosion related to the use of brine.