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Q&A: talking sensory warning systems with Hetech

At Hetech we have been committed to quality electronics manufacturing & PCB assembly for over 30 years, producing and manufacturing locally here in Australia. Hetech is capable of manufacturing any project size from prototypes to high-volume runs. One of the recent projects we have worked on is the tailing dam systems.

Did you see Mark’s Q&A with Zachary Skidmore at Mining Technology? If not, don’t worry we’ve included the full article below!

The application of advanced sensory systems has proliferated across mine sites over the last decade to alleviate the threats posed by tailing dam failures. Zachary Skidmore speaks to Mark Steiner, managing director of Hetech about its new sensory system.

TOPSHOT – A firefighter takes part in the search for victims at the Vale plant, 20 days after the rupture of a tailings dam of mining company Vale in Corrego do Feijao, near Brumadinho, in the Brazilian state of Minas Gerais, on February 13, 2019.

Tailings facilities pose a real and inherent threat to mining operations across the globe. The legacy of disasters such as the 2019 Brumadinho dam collapse, which led to extensive ecological damage and the deaths of 270, has led miners to focus more on the monitoring of these sites to prevent further disasters.

Hetech is an Australian technology company which has developed a new sensory system to detect and measure a vast range of unique local risks. From soil disruption that could reveal damage to dams, to slower and more subtle movements, the technology aims to help detect potential problems within the tailings facility and allow time for mine operators to correct the issue prior to a catastrophic failure.

We speak to its managing director, Mark Steiner about the potential of Hetech’s AIM system and its application in the evolution and monitoring of tailings facilities.

Zachary Skidmore (ZS) Could you provide an overview of Hetech’s AIM system?

Mark Steiner (MS): The early warning ground movement technology is designed to identify minute ground movements in three dimensional spaces and trigger real-time alarms based on site determined sensitivity.

It is made to provide early warning of events rather than long-term slow-moving changes, and is ideally suited to landslide detection, embankment failures, and catastrophic collapses of structures and ground surfaces.

ZS: How are the sensors deployed on the mine site? Are they static or used in conjunction with drone technology?

MS: The AIM system is designed as a fully rugged technology that can be remotely deployed in harsh and remote areas. Used in conjunction with drone technology, the sensors are installed on the ground where they are attached to infrastructure, buried underground, or submerged, submitting data to an AIM Cloud application.

ZS: How has the digitalisation of mines supported the efficacy of evaluation and monitoring?

MS: The digitisation of the mines has made many processes more automated, meaning workers spend less time on surveying because they have access to instant, real-time data and feedback. Consequently, we’re seeing less costly machinery breakdowns and worker downtime.

ZS: How much more data can the AIM system derive from tailings dams in comparison with standard monitoring protocols? What impact does this have upon the safety of these facilities?

MS: The system measures a wide range of unique local risks, from fast soil movements that indicate a dam breakage to slower, more subtle movements that give early warning of potential problems. When compared to standard monitoring, it provides more accurate data on the movements of the dam. The safety benefits of this relate to risk mitigation. Mine sites can detect and circumvent a potential crisis before it occurs. It’s preventative maintenance.

ZS: How does Hetech’s AIM system differ from other AI driven monitoring programmes?

MS: The AIM system is currently in the data collection phase. Before AI can be introduced, it will take some time to collect enough data on the dam movements to identify patterns and notable activity. In time, we will have gathered sufficient data to enable us to build AI monitoring into the system, but we are not yet at that point.

ZS: How critical is ESG to Hetech corporate policy?

MS: Hetech is committed to helping to build a more sustainable, resilient future. We are preparing to introduce environmental, social, and governance metrics into our corporate policy and look forward to sharing details of our plan once developed.

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