| 摘要 |
FIELD: mining. ^ SUBSTANCE: invention is related to mining industry, namely to mine ventilation of transport tunnels. Installation comprises working and reserve fans, every of which has an electric motor, collector and diffuser, doubled inlet box in the form of joined individual boxes of working and reserve fans, on common rib of which there is a folding door that alternately covers fan inlets, and flag door that covers fan outlets, moreover, doubled inlet box is connected to fan bodies by means of collectors. Moreover, doubled inlet box of fans comprises detachable elements. Collectors are arranged as detachable and have stationary sectors connected to stationary part of inlet box, and detachable sectors connected to detachable sectors of inlet box. ^ EFFECT: invention provides for higher reliability and repairability of fan installations for main ventilation of mines. ^ 3 dwg |
