Process for recycling combustion gases in a drying system

Details Process for recycling combustion gases in a drying system Process for recycling combustion gases in a drying system

1995-03-15

1996-12-31

Sollecito, John M.

Drying and gas or vapor contact with solids

Process

With treated material recirculation

34423, 34467, 34477, 34487, 34514, 432 72, 110216, F26B 700

Patent

active

055882226

ABSTRACT:
In a process for drying material in a drying system, a first current of heated gas is supplied to a first dryer from a corresponding first combustion chamber. Material to be dried is exposed to the first current in the first dryer. The dried material is separated from the first current of heated gas. The first current of heated gas is split into a first stream of heated gas and a second stream of heated gas after the dried material has been separated. The first stream is introduced into the first combustion chamber so that the gas generated in the first combustion chamber and the first stream are combined to constitute the first current of heated gas. At least a portion of the second stream is introduced into the second combustion chamber. A second current of heated gas is supplied to a second dryer from the second combustion chamber. The portion of the second stream introduced into the second combustion chamber constitutes a portion of the second current. Material to be dried is exposed to the second current in the second dryer. The dried material is separated from the second current.

REFERENCES:
patent: 3861055 (1975-01-01), Thompson
patent: 4445976 (1984-05-01), La Delfa et al.
patent: 5295310 (1994-03-01), Eriksson

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