Circular vibratory fluid bed dryer
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United States of America Patent
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Dec 14, 2004
Grant Date -
N/A
app pub date -
Apr 29, 2004
filing date -
Apr 29, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A two-deck apparatus, one deck above the other, is provided for enabling drying of approximately twice as much material with very little increase in heat used to dry the material, when compared to a single deck dryer. The fan usually provided with dryers of this type requires only a small incremental size increase over prior art. The second or upper deck, in operation, experiences a greater pressure below that deck than the pressure above the deck. Solid material flows into the top of the apparatus from above, and then from the upper deck to the lower deck through what is essentially a one-way valve, with air flow moving from below the lower deck through the upper deck, without impeding the material flow downwardly in the apparatus. The same apparatus, but with the use of cold air to cool the product, rather than hot air to heat and dry a product, is also within the teachings of the present invention.
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