Drying and gas or vapor contact with solids – Apparatus – With apparatus using centrifugal force
Patent
1987-09-08
1988-09-13
Bennet, Henry A.
Drying and gas or vapor contact with solids
Apparatus
With apparatus using centrifugal force
34136, F26B 1700
Patent
active
047699230
ABSTRACT:
A dryer includes: a housing, an eddy-flow turbo fan having an inner cylinder formed with plural blades each having an inclined groove protruding upwardly outwardly and backwardly relative to the rotating direction of the fan to be tangential to the inner periphery of the inner cylinder and an outer cylinder formed with plural blades each protruding upwardly inwardly and backwardly to be tangential to the outer periphery of the outer cylinder, a heater disposed around the fan, a wet feed means fluidically communicated to a lower hopper of the fan, and a dry discharge means fluidically communicated with an upper annular port of the fan, whereby upon the rotation of the fan, a hot air stream as heated by the heater will be guided inwardly upwardly by the outer cylinder and the other hot air stream will be guided outwardly upwardly by the inner cylinder to thereby form an eddy air flow to dry the wet product as spirally floated on the eddy air stream in an efficient and economic way.
REFERENCES:
patent: 664903 (1901-01-01), Seldner
patent: 3276627 (1966-10-01), Birkestrand
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