Heating – Tumbler-type rotary - drum furnace
Patent
1995-11-15
1998-08-04
Bennett, Henry A.
Heating
Tumbler-type rotary - drum furnace
432107, 432112, 432113, 432114, 110246, F27B 700
Patent
active
057884811
ABSTRACT:
A carbon reactivation apparatus has a fossil fuel kiln adjacent to a rotary dryer and flue gas from the kiln flows through the dryer co-currently with carbon particles to provide a more efficient process than previously known. The apparatus has a rotary kiln with a drum therein sloped downwards from a feed end to a discharge end, a furnace shell surrounding at least a portion of the drum with a fossil fuel heater and hot gases from within the shell heat the rotary kiln. A rotary dryer slopes downwards from an inlet end to an outlet end and carbon particles to be reactivated are fed into the inlet end. Ducting from the shell surrounding the drum of the rotary kiln extends to the inlet end of the rotary dryer for hot gases to flow along the dryer to the outlet end in the same direction as the carbon particles. Carbon particles are discharged from the outlet end of the rotary dryer into the feed end of the rotary kiln, the carbon particles being separated from the hot gases in the rotary dryer, and there is an exhaust system to exhaust the hot gases from the outlet end of the dryer.
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Bennett Henry A.
Lockhead Haggerty Engineering & Manufacturing Co. Ltd.
Lu Jiping
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