Telescopic ventilation pipeline device for coal storage silo

A telescopic ventilation pipeline device for a coal storage silo, wherein the silo is internally equipped with a first fan and a set of coal stacking/taking equipment that comprises a rotary trestle, a trestle traveling mechanism, a central rotating platform, a central telescopic feed pipe, a spiral framework, a screw conveyor, a spiral framework A-type frame;

• wherein the telescopic ventilation pipeline device comprises:
• a second fan,
• an upper air pipe fixing interface,
• a telescopic air pipe,
• a bottom air pipe fixing interface,
• a mounting platform, and
• a ventilation air pipe,
• the telescopic air pipe being parallel to the central telescopic feed pipe of the silo, one end of the upper air pipe fixing interface being connected to the second fan, the other end thereof communicating with the top end of the telescopic air pipe, the bottom end of the telescopic air pipe, the bottom air pipe fixing interface and the ventilation air pipe communicating in sequence, and the bottom air pipe fixing interface being fixed to the spiral framework A-type frame of the silo.