Talcum powder feeding device and talcum powder feeding method for powdery emulsion explosive

The invention discloses a talcum powder feeding device and talcum powder feeding method for a powdery emulsion explosive. The talcum powder feeding device comprises a vacuum pump, a feeding bin, a spiral quantitative conveyor, a buffering bin, a vacuum feeder, a cyclone separator and hoses. Talcum powder in the feeding bin is vacuum-pumped into the vacuum feeder, is discharged into the buffering bin regularly through a pneumatic valve, then is precisely quantificationally discharged into a transparent hose by the aid of the spiral quantitative conveyor, and finally is fed into the powdery emulsion explosive. According to the technical scheme, the talcum powder feeding device and the talcum powder feeding method have the advantages that good convenience, safety and reliability in operation are realized, potential safety hazards caused by friction of the talcum powder on metal tube walls and equipment during talcum powder feeding are avoided effectively, and safety production of the powdery emulsion explosive i