Journal of Chemistry and Chemical Research

The unique terrain structure of deep depression open-pit mines frequently leads to the formation of temperature inversion layers, which restrict air convection and exacerbate the accumulation of harmful gases, significantly impacting mining safety and production efficiency. Research indicates that the formation of these inversion layers is influenced by a combination of meteorological conditions, topographic features, and pit depth, with their stability and duration directly determining air exchange efficiency. By analyzing the formation patterns of temperature inversion layers, key controlling factors can be identified to provide theoretical foundations for ventilation optimization. In ventilation system design and operation, adjustments to fan placement and airflow distribution based on the spatiotemporal characteristics of inversion layers can mitigate adverse climatic effects and enhance air circulation capacity. This approach not only improves working conditions in mining areas but also holds practical significance for production safety.

Deep depression open-pit mines; Temperature inversion layers; Formation patterns; Ventilation optimization