The invention belongs to the field of
powder raw material processing and particularly discloses a dust-free automatic accurate feeding
system and method. The dust-free automatic accurate feeding
system comprises a vibration feeding device, a dust-
free feeding device, a support and a control device, wherein the vibration feeding device comprises a vibration charging
barrel, a vibrator, springs anda decrement weighing module; the vibration charging
barrel is fixed on the vibrator, the vibrator is fixed on the decrement weighing module through the springs, and the decrement weighing module is placed on the support; the dust-
free feeding device comprises a flexible connection, a flow control valve, a labyrinth sealing
assembly, a hopper and an increment weighing module; the upper end of the flow control valve is fixed on the support and is connected to a
discharge port of the vibration charging
barrel through the flexible connection, while the lower end of the flow control valve is connected to the hopper through the labyrinth sealing
assembly, and the hopper is placed on the increment weighing module; and the control device is connected to the vibrator, the decrement weighing module,the flow control valve, the labyrinth sealing
assembly and the increment weighing module. The dust-free automatic accurate feeding
system realizes automatic accurate feeding and solves the problems of
static electricity and
dust emission.