Deepcore Nickel Mine Ventilation Retrofit

Design and implementation of a high-capacity, multi-stage gas-scrubbing and particulate filtration system for a legacy underground mine in Northern Ontario.

Deepcore Nickel Mine Ventilation Retrofit
Industrial ventilation ductwork
Control room monitoring system
Air quality sensor installation

The Challenge

The Deepcore Nickel Mine, operational since the 1970s, faced significant challenges in meeting modern Canadian OHS air quality standards. Its original ventilation system was designed for a different operational scale and could not effectively handle the increased levels of diesel particulate matter (DPM) and nitrogen oxides (NOx) from modern equipment. Airflow was inconsistent, creating hazardous pockets of poor air quality in remote stopes and drifts. The client needed a comprehensive retrofit that would integrate seamlessly with the existing mine infrastructure without causing prolonged operational downtime.

Our Solution & Measured Outcomes

Our engineering team developed a modular, multi-stage filtration solution. The core innovation was a series of "scrubber pods" installed at key junctions in the main intake and exhaust airways. Each pod combined electrostatic precipitation for fine DPM removal with a proprietary wet-scrubbing stage for NOx and SO2 abatement. A new AI-driven airflow management system dynamically adjusted fan speeds based on real-time sensor data from over 50 monitoring points throughout the mine. The installation was executed in phased shifts during scheduled maintenance periods, minimizing disruption. Post-implementation air quality monitoring showed a 94% reduction in PM2.5 concentrations and an 88% reduction in NOx levels, bringing all measured parameters well within CSA Z223.2-M87 and Ontario Regulation 854 limits. The system also resulted in a 15% reduction in overall ventilation energy consumption due to optimized fan operation.
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