How to manage communication ventilation in coal mine underground

1, the underground general control angle is connected with the wind location, and the coal mining face and tunneling face shall not be in the angle wind road; 2. The wind speed sensor should be installed in the relevant roadway of diagonal wind to ensure the normal circulation of airflow; 3. Control the construction that affects the ventilation section in the roadway related to diagonal ventilation, understand the safety measures during construction, and ensure that the airflow of diagonal ventilation roadway is not disordered; 4. Try to avoid the uphill or downhill roadway with the inclination angle of roadway, so as to avoid fire and wind reversal.