Abstract: The present invention provides a method for quantitatively and stably supplying fine powder and a system for implementing the method. In this invention, in a state in which at least part of the ultrasonic vibration gushing portion is in contact with the fine powder surface of the surface layer of the fine powder stored in the fine powder storage container, the powder inlet of the feed nozzle takes in the fine powder rising from the fine powder surface onto the ultrasonic vibration gushing portion through the passage region of the ultrasonic vibration gushing portion, together with the carrier gas, by ultrasonically vibrating at least part of the ultrasonic vibration gutting portion.

Abstract: To provide a method for quantitatively and stably feeding fine powder and a system for carrying out the method. The present invention is characterized in that a gas transfer type fine powder quantitative feeding method for quantitatively transferring and feeding fine powder filled in a gas transfer type fine powder quantitative feeder to a fine powder using device by a carrier gas, wherein when a mixed fluid of the fine powder and the carrier gas is transferred from the gas transfer type fine powder quantitative feeder to the fine powder using device, a water content in the carrier gas is adjusted to suppress an amount of static electricity that is generated in the mixed fluid.

Abstract: To provide a method for quantitatively and stably feeding fine powder and a system for carrying out the method. The present invention is characterized in that a gas transfer type fine powder quantitative feeding method for quantitatively transferring and feeding fine powder filled in a gas transfer type fine powder quantitative feeder to a fine powder using device by a carrier gas, wherein when a mixed fluid of the fine powder and the carrier gas is transferred from the gas transfer type fine powder quantitative feeder to the fine powder using device, a water content in the carrier gas is adjusted to suppress an amount of static electricity that is generated in the mixed fluid.