Method and apparatus for burning solid or sludge-like fuels in a fluidized bed
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United States of America Patent
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Jan 7, 1992
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N/A
app pub date -
Mar 11, 1991
filing date -
Mar 10, 1990
priority date (Note) -
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Abstract
A stationary weakly expanded fluid bed for combustion of coal, refuse, sludge and the like has a free space above the fluid bed in which a so-called upper firing is effected with secondary air. The temperature of the secondary air is maintained above the temperature of the fluid bed to handle problems resulting from variations in fuel quality and varying loads and guarantees a stable upper firing.
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