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

Abstract

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 is guaranteed.

Description

technical field [0001] The invention belongs to the field of explosive production, and in particular relates to a talcum powder feeding device and a feeding method for powdery emulsion explosives. Background technique [0002] As an important additive of powdery emulsion explosives, talc powder can effectively improve the fluidity of powdery emulsion explosives, adjust product density and other functions and greatly reduce the cost of powder milk. In industrial production, double-screw metering is often used to directly transport it to the cyclone separator in front of the discharge port. Because talcum powder is essentially stone particles and contains more impurities, the friction between the screw and the talc powder feeder is serious when using double-screw conveying. It is very easy to damage the machinery, and friction generates a lot of heat at the same time, which causes a great safety hazard to the production of explosives, and even endangers people's lives when it ...

AI Technical Summary

Problems solved by technology

In industrial production, double-screw metering is often used to directly transport it to the cyclone separator in front of the discharge port. Because talcum powder is essentially stone particles and contains more impurities, the friction between the screw and the talc powder feeder is serious when using double-screw conveying. It is very easy to damage the machinery, and at the same time, the friction generates a lot of heat, which causes a great safety hazard to the production of explosives, and in serious cases endangers people's lives, which is extremely unfavorable to safe production.

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