Drying and gas or vapor contact with solids – Apparatus – Reversible or pulsating treating gas or vapor flow
Patent
1997-11-13
1999-08-17
Bennett, Harry
Drying and gas or vapor contact with solids
Apparatus
Reversible or pulsating treating gas or vapor flow
F26B 2106
Patent
active
059375396
ABSTRACT:
A dual-purpose combustor for ordinary combustion and pulse combustion especially suited to be installed for a spray dryer, which is used not only as an ordinary combustion gas generator but also as a pulse combustion gas generator capable of generating high frequency sound waves and hot blast in large capacity to enhance the drying efficiency. The dual-purpose combustor is composed essentially of successionally connected chambers: a concentric narrow ring form fuel/combustion air mixed gas supply slit, a concentric wider ring form combustion chamber having an ignition means and a narrow outlet portion, a concentric narrow ring form exhaust gas chamber, a concentric wider ring form upper secondary combustion chamber, and a concentric cylindrical form lower secondary combustion chamber having the same diameter with the outer diameter of the concentric ring form upper secondary combustion chamber.
REFERENCES:
patent: 5044930 (1991-09-01), Hongo et al.
patent: 5092766 (1992-03-01), Kubotani
patent: 5252061 (1993-10-01), Ozer et al.
patent: 5638609 (1997-06-01), Chandran et al.
Bennett Harry
Garvini Steve
Powdering Japan K.K.
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