2, the location of the ventilation facilities should be located in the hard roof, undamaged coal and rock roadway, as far as possible to avoid in the dynamic pressure area, and to comply with the relevant provisions of the "coal mine safety regulations".
3. The measures of ventilation facilities must be operated in accordance with the "Operating Rules for Safety Technology of Ventilation Facilities Workers". After the ventilation facilities are completed, they should be accepted. Those that do not meet the quality requirements must be rectified and qualified.
4. The air door (wall battlement masonry is the same as airtight) is located in the roadway where airflow is not allowed to pass, but pedestrians or vehicles are needed, and its structural requirements are strict and the air leakage is small.
5. There should be no less than two air doors, which are divided into positive air doors and negative air doors. The front baffles must be able to close automatically and interlock between baffles to ensure that they do not open at the same time. The distance between two baffles of pedestrians should not be less than 5m.
6. The air door battlements are made of incombustible brick (stone) materials; The cutting depth around battlements is generally not less than 0.2m. If you want to see the hard roof and help, it should be closely connected with coal and rock (with skirt of 0.2m) without air leakage.
7, before and after the damper within 5m roadway support is good, without sundry, silt and water, etc. When there is accumulated water, a reverse pool or a U-shaped reverse water pipe should be set for water diversion.
8, goaf, old lane (blind lane), fire area and the roadway between the inlet and return air alleys, etc. , must be sealed to prevent spontaneous combustion or harmful gas diffusion caused by short circuit of airflow.
Extended data:
Management system of coal mine ventilation facilities
First, ventilation workers should reasonably adjust the effective air volume according to the air volume of the mine, carry out risk control management, install solid and effective risk control facilities, and reduce the air leakage rate.
Second, security officers and ventilation workers strictly strengthen the management and maintenance of mine ventilation facilities.
Three, management personnel and workers shall not damage the ventilation facilities, and handle and report the problems in time.
Four, strengthen the monitoring of ventilation facilities, the installation location is reasonable, and the distance is in line with technical standards.
Baidu Encyclopedia-Coal Mine Ventilation Facilities Management System
Baidu Encyclopedia-Safety Technical Management Measures of Coal Mine Ventilation Facilities