SPRAY DRYING APPARATUS FOR FILTRATE FROM DESULFURIZATION WASTE WATER, AND EXHAUST GAS TREATMENT SYSTEM

SPRAY DRYING APPARATUS FOR FILTRATE FROM DESULFURIZATION WASTE WATER, AND EXHAUST GAS TREATMENT SYSTEM

A spray drying apparatus (50A) includes a gas inlet (52) provided on a side wall (51b) in the vicinity of a top (cover) portion (51a) of the spray drying apparatus (50A), for introducing a flue gas (18) for drying a spray liquid (33a) of a dehydration filtrate (33); a rectifying plate (53) provided...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NAGAYASU, TATSUTO, FUKUDA, TOSHIHIRO, KAMIYAMA, NAOYUKI, UKAI, NOBUYUKI, KAGAWA, SEIJI
Format: Patent
Sprache:eng ; pol
Schlagworte:
BLASTING
CHEMISTRY
DRYING
DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
HEATING
LIGHTING
MECHANICAL ENGINEERING
METALLURGY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
WEAPONS
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Beschreibung
Zusammenfassung:A spray drying apparatus (50A) includes a gas inlet (52) provided on a side wall (51b) in the vicinity of a top (cover) portion (51a) of the spray drying apparatus (50A), for introducing a flue gas (18) for drying a spray liquid (33a) of a dehydration filtrate (33); a rectifying plate (53) provided in a spray drying apparatus main body, for decelerating the introduced flue gas (18) so as to alter the flue gas flow to a laminar flow (X); a spray nozzle (54) for spraying the dehydration filtrate (33) emitted from the desulfurization waste water (30) into the flue gas (18) altered to the laminar flow (X); a gas outlet (55) provided on a side wall (51c) in the vicinity of a bottom portion of the spray drying apparatus main body, for discharging the flue gas (18) contributed to drying of the dehydration filtrate (33); and a discharge hopper (57) serving as a solid discharging means provided on the bottom portion side of the spray drying apparatus main body, for discharging an ash (56) as a spray-dried solid.