A blowing device for screening high-purity aluminum
powder effectively solves the problems that a screen is prone to being blocked, and working efficiency is low, and comprises a rack, an
auger conveyor, a first rotating shaft and a second rotating shaft are arranged on the rack, an eggbeater head is fixed to the lower end of the first rotating shaft and located on the right side of the
auger conveyor, and a first air supply
pipe and a second air supply
pipe are fixed to the rack. A first filter screen corresponding to the first air supply
pipe is arranged on the side wall of the
vertical channel, a second filter screen corresponding to the second air supply pipe is arranged on the
vertical channel, the first filter screen is located above the second filter screen, the second rotating shaft is located on the right side of the first rotating shaft, and a first
cam and a second
cam are coaxially fixed to the second rotating shaft. The first
cam makes contact with the first filter screen, the second cam makes contact with the second filter screen, and compression springs are installed between the first filter screen and the rack and between the second filter screen and the rack respectively.