Hot main air intake of boiler pulverizing system

The utility model discloses a hot main air intake of boiler pulverizing system, including door frame, door plant, locking cylinder, locking axle, turning arm, propulsion cylinder, the setting of locking axle level is in door plant face, its left end extend the left side door frame and pass through the turning arm with the locking cylinder of vertical setting and be connected, horizontal frame is fixed with the guide rail on the door frame, and this guide rail is equipped with two leading wheels at least, still includes the connecting plate, the connecting plate lower extreme is connected top surface on the door plant, the upper end is connected the leading wheel, impel the cylinder setting to be in the door plant right side, its telescopic link tip with the door plant right part is connected. The utility model discloses an advance cylinder pole and door plant lug connection, guaranteed the safe and reliable operation of air door, simplified air door structure, be convenient for installation and maintenance. 本