In the process of coal mine production, mine ventilation plays a crucial role. Good ventilation not only ensures safe production in mines, but also provides a comfortable working environment for miners. So, what are the key indicators for mine ventilation?

Mine ventilation is the cornerstone of coal mine safety production. Its main functions are as follows:

Eliminate harmful gases: Mines contain a large amount of harmful gases such as methane, carbon monoxide, etc. Ventilation can remove these harmful gases from the mine and reduce the risk of accidents.

Cooling: The temperature inside the mine is relatively high, and ventilation helps to reduce the temperature and improve the work efficiency of miners.

Dust removal: There is a lot of dust in the mine, and ventilation helps to reduce the concentration of dust and ensure the health of miners.

Provide fresh air: Ventilation provides fresh air to the mine to meet the breathing needs of miners.

Effective air volume is an important indicator for measuring the ventilation effect of mines. So, what should the effective air volume be no less than?

According to China's Coal Mine Safety Regulations, the effective air volume in mines should meet the following requirements:

Total air volume of the mine: not less than 80% of the designed air volume of the mine;

Coal mining face air volume: not less than 4 cubic meters per person per minute;

Excavation working face air volume: not less than 3 cubic meters per person per minute;

Independent ventilation chamber air volume: not less than 6 cubic meters per person per minute.

How to increase the effective air volume in mines

Optimize ventilation system: Reasonably layout ventilation tunnels, reduce ventilation resistance, and improve air volume utilization.

Update ventilation equipment: Select high-efficiency fans and ducts to improve ventilation capacity.

Strengthen ventilation management: Regularly inspect ventilation facilities to ensure the normal operation of the ventilation system.

Train miners: Improve their awareness of the importance of ventilation and consciously abide by ventilation regulations.

Mine ventilation is a key link in coal mine safety production, and effective air volume is an important indicator for measuring ventilation effectiveness. Only by ensuring that the effective air volume is not lower than the prescribed standard can a safe and comfortable working environment be created for miners. Therefore, coal mining enterprises should attach great importance to mine ventilation work, continuously optimize the ventilation system, improve effective air volume, and safeguard coal mine safety production.