Document Type and Number:
Japanese Patent JPS5630057
Kind Code:
B2
Abstract:
An apparatus for manufacturing readily soluble granular substances from powdered materials such as, for example, coffee, milk and the like. The apparatus has a vertical outer hollow cylindrical body for allowing quantities of powdered material from a distributor to fall by gravity therethrough, and a vertical inner hollow cylindrical body of different length and diameter inside the outer cylindrical body. The two concentric cylindrical bodies partly overlap each other and define a circumferential gap therebetween extending along the overlapping portion. A pneumatic air supply is provided on the outer cylindrical body for introducing compressed air into the outer body and producing a whirling air stream in the gap so that the powdered material carried by the whirling air stream forms a thin, ring-like continuous curtain. Also, first and second steam supply means are provided in the inner body and at the bottom of outer body for blowing steam against the curtain-shaped powdered material in the gap from the inside and outside.
Application Number:
JP13293977A
Publication Date:
July 13, 1981
Filing Date:
November 04, 1977
Export Citation:
International Classes:
A23C1/00; B01J2/16
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