Vibration screening device

The utility model provides a vibration screening device which comprises a screening box, a screen is arranged in the screening box, a rotating shaft is arranged in the screening box in a rotating fit mode, a rotating rod is fixed to one end of the rotating shaft, a plurality of protruding blocks are fixed to the upper side of the screen, the rotating rod makes contact with the screen, a blocking plate is arranged in the screen in a rotating fit mode, and a plurality of through holes are formed in the blocking plate. And a material receiving plate is rotationally matched with the interior of the screening box, a discharging opening is formed in one side of the screening box, and a first door plate is rotationally matched with the interior of the discharging opening. According to the lotus root starch screening device, the rotating shaft is installed in the screening box, the rotating rod is fixed to one end of the rotating shaft, the rotating rod is matched with the protruding block to drive the screen to vibr