Drying and gas or vapor contact with solids – Apparatus – With apparatus using centrifugal force
Patent
1985-05-30
1986-02-04
Favors, Edward G.
Drying and gas or vapor contact with solids
Apparatus
With apparatus using centrifugal force
110218, 110224, F26B 1700
Patent
active
045676747
ABSTRACT:
The invention comprises an unfired fluidized bed dryer and sorter. Pressurized fluidizing air is preheated passing through steam heat exchangers. Bed outlet air/vapor temperature is held in a range of 100 F. to 150 F. Smaller/low density solids are removed from the top of the bed and larger/heavier solids are removed from the bottom of the bed after some retention in the bed. Feedstock is fed continuously to the bed. The exhaust air/water vapor from the bed is postheated at least 20 F. before passage through a bag house by addition of steam heated air to the air/vapor stream exhausting from the bed. Moisture content of the effluent solid materials from the bed is controlled by mass flow rate of the fluidizing air and rate of steam flow to the bed air heater.
REFERENCES:
patent: 3884193 (1975-05-01), Bryers
patent: 4116005 (1978-09-01), Willyoung
patent: 4153427 (1979-05-01), Bissett et al.
patent: 4251207 (1981-02-01), Beck et al.
patent: 4311103 (1982-01-01), Hirose
patent: 4311670 (1982-01-01), Nieminer et al.
patent: 4324544 (1982-04-01), Blake
patent: 4325327 (1982-04-01), Kantesaria et al.
Electrodyne Research Corp.
Favors Edward G.
Ruano William J.
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