In Premogovnik Velenje, ensuring safe working conditions is essential for achieving high productivity in underground lignite extraction. This requires long-term development, engineering, and research activities across all areas related to potential underground hazards. Modern underground coal mining methods and the demands of long-term production planning require continuous monitoring of the technological process and the development of new mining approaches. As the intensity and depth of excavation increase, geomechanical conditions become more challenging, which consequently leads to greater release of harmful and hazardous substances during mining operations.
Among the key elements of safe mine operation is mine ventilation, as increased concentrations of hazardous gases require the supply of sufficient fresh air to maintain a safe and stable working environment. Due to these demands, Premogovnik Velenje has initiated the intensive development of a ventilation system optimization project. Its aim is to ensure legally acceptable concentrations of hazardous gases, maintain appropriate climatic conditions, and enable efficient and uninterrupted operation of underground work sites.
The purpose of the ventilation system optimization is to reduce ventilation costs through efficient energy use, enhance ventilation safety to the highest possible level, improve the functionality of ventilation routes, and reduce the overall system depression, which is essential for proper movement of mine air. The optimized ventilation system also enables reduced airway resistance, improved airflow distribution, and more efficient operation of the main ventilation stations, among which the newly established exhaust ventilation station NOP II plays an important role.
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