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The importance of mine ventilation
After the ground fresh air enters the mine, it is polluted by the dust generated by rock drilling, blasting, loading, transportation, etc., as well as the harmful gases generated by the decay of the pit wood and the oxidation of the ore, thus becoming dirty air in the underground. Its composition is quite different from the fresh air on the ground, mainly due to increased dust, increased harmful gas content, and reduced oxygen content in the air.
In order to reduce the dust content and harmful gas concentration in the downhole air and increase the oxygen content to meet the national sanitary standards, mine ventilation must be carried out, that is, the ground fresh air is continuously sent to the well, and the dirty air from the well is discharged to the surface. Downhole temperature and humidity create comfortable working conditions to ensure the health and safety of underground workers.