Arrangement for converting a conventional oil boiler to a boiler with moist, granular and solid fuel
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United States of America Patent
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Aug 8, 2000
Grant Date -
N/A
app pub date -
Mar 29, 1999
filing date -
Sep 10, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An arrangement for converting a conventional oil boiler to a boiler with moist, granular and solid fuel, utilizes a fuel combustion gas dryer connected to the combustion gas line of the boiler, and a solid fuel combustion device to replace the oil burner. The combustion gas dryer is a so-called circulating fluidized bed (CFB) dryer together with a particle separator and a combustion gas center tap has been fitted into the oil boiler, through which center tap hot combustion gas has been set to be mixed with combustion gases of the normal outlet in the desired proportion in order to regulate the temperature of the drying gas of the dryer. The combustion devices may include a cyclone burner.
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