Spray-drying device for dehydrated filtrate from desulfurization wastewater, air pollution control system and flue gas treatment method
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United States of America Patent
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Jan 31, 2017
Grant Date -
Sep 26, 2013
app pub date -
Mar 22, 2012
filing date -
Mar 24, 2011
priority date (Note) -
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Abstract
A spray-drying device includes a spray nozzle that sprays the dehydrated filtrate from the desulfurization wastewater, in a spray-drying device body, an inlet that is provided in the spray-drying device body and introduces flue gas for drying spray liquid, a dry area that is provided in the spray-drying device body and dries the dehydrated filtrate by the flue gas, an outlet that discharged the flue gas contributing to the drying, a plurality of thermometers that are provided in the dry area and measure temperatures of the inside, a determination unit that determines whether or not a spray-drying state of the dehydrated filtrate is satisfactory on the basis of the measurement results of the thermometers, and a control unit that adjusts the flue gas or the dehydrated filtrate when it is determined that the spray-drying is not satisfactory as a result of the determination of the determination unit.
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