Introduction
Wind pressure self-help systems are used primarily with coal and gas outburst in coal mine disaster protection. It is installed in the coal mine or coal face of chamber machines lane roadway head wind the appropriate location or locations more mobile workers, as well as downpipe head, shaft stations, transport and return air tunnel, a variety of the station house, etc. 。
Composition
Wind pressure self-help system, including air compressors, air supply pipes, tees and valves, oil-water separator, pressure self-help devices and other equipment.
Wind pressure self-help devices installed in the pressure duct, through the protective bag or mask the use of personnel to provide fresh air, with decompression, throttle, eliminate noise, filtering, switching and other functions.
Wind pressure self-help system pressure air pipes should be used with steel or other material of equivalent strength flame retardant materials.
Wind pressure self-help system, air pressure, pipe laying should be strong, straight and extends to underground mining workplace, emergency refuge facilities, blasting evacuees centralized location and other major locations
Classification
Air compressor
Installed on the ground is difficult to ensure effective downhole operating point for the wind, it would be above the level of its air supply two levels of intake air shaft shaft bottom secure location to install.
Pressure self-help system, air compressor should be installed on the ground, and can start in 10min
Using portable air compressors for air underground mining enterprises, should be used in disaster when ground-mounted air compressors, pressure air supply system and the establishment. Do not use underground diesel air compressor.
Downhole pressure air duct pipe materials should be used, and to take protective measures to prevent catastrophic damage.
Escaping the job sites and underground chambers (spaces) should be set at the gas valve.
没有评论:
发表评论