SHAFT VENTILATION PLANT Russian patent published in 2013 - IPC E21F1/08 F04D17/16 

FIELD: mining.

SUBSTANCE: shaft ventilation plant comprises a working and a reserve fan, every of which has an electric motor, a rotor, supports of which are radial and radial-thrust bearings, a header, a diffuser, a doubled input box with vertical air supply in the form of coupling of individual boxes of working and reserve fans, on the common rib of which a dump door installed, which in turns closes entrances of fans, outputs of which are closed with a flag door. At the same time the common input box is made by coupling of individual boxes of fans in a horizontal plane, is installed on a separated foundation by means of elastic elements and comprises gates with drives and nozzles of dissolution-reverse.

EFFECT: higher reliability and increased efficiency of fans in a reversible mode.

5 dwg