MIXED (COMBINED) VENTILATION SCHEMES IN OPEN-PIT MINES
DOI:
https://doi.org/10.55640/Keywords:
Open-pit mine ventilation, mixed ventilation scheme, convective airflow, inversion airflow, wind energy effects, thermal forces, quarry atmosphere, air circulation in deep pits, temperature gradient, adiabatic gradient, atmospheric stability, pollutant dispersion, turbulent diffusion, airflow dynamics, natural ventilation, convective heat transfer, recirculating airflow, environmental safety in mining, large-scale blasting emissions, air exchange efficiency.Abstract
This article explores the ventilation of open-pit mines under the combined influence of wind energy and thermal forces. It discusses how air movement forms differently in shallow versus deep horizons, highlighting direct-flow convective and convective–inversion ventilation schemes. The relationship between the real and adiabatic temperature gradients is analyzed, demonstrating its impact on the efficiency of pollutant removal. The study emphasizes that increased atmospheric stability complicates ventilation, reducing both airflow and pollutant extraction.
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