| 摘要 |
An apparatus (100) for vaporizing a particulate material, including: a metering apparatus including: a reservoir (130) for receiving particulate material: the reservoir having an opening (160) for discharging the particulate material into a vaporizing chamber (210); a rotatable wire wheel brush (170) disposed in the reservoir; wherein the dimensions of the reservoir and the wire wheel brush are selected so that the wire wheel brush cooperates with the interior walls of the reservoir to fluidize the particulate material and wherein a metered portion of the particulate material is entrained in the tines of the wire wheel brush and subsequently forcefully released into the reservoir opening; and a flash evaporator (120) that receives and vaporizes the metered material.
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