FIELD: mining industry.
SUBSTANCE: system incorporates operational and standby air-screw fans installed in a fan room. The fan room is divided in two by means of horizontal longitudinal baffle. Fans are installed in the top section at an acute angle to the room axis. The bottom section is divided into two compartments by means of a vertical longitudinal baffle; the said compartments are used as air supply and air exhaust channels. Isolation valves are installed in interconnecting channels, which connect the fans with air supply and exhaust channels. The installation connection is connected to the fan room end in the top section.
EFFECT: less mining losses during sheet deposit development and improved safety for miners.
3 dwg
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