METHOD AND DEVICE FOR TREATING SLUDGE

METHOD AND DEVICE FOR TREATING SLUDGE

A plant has a fluidised bed dryer (1) and a fluidised bed cooler (2). A mixer (3) in which supplied thick sludge is mined with dried sludge is arranged upstream of the fluidised bed dryer. The dried sludge is branched off between the fluidised bed dryer (1) and the fluidised bed cooler (2). The amou...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BUBLIES, JOERG, BRAUWEILER, HELMUT, THIEMANN, HEINZ, RUPERT, IVAN, MOELLER, BURKHARD
Format: Patent
Sprache:eng ; fre
Schlagworte:
BLASTING
CHEMISTRY
DRYING
DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
HEATING
LIGHTING
MECHANICAL ENGINEERING
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
WEAPONS
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Beschreibung
Zusammenfassung:A plant has a fluidised bed dryer (1) and a fluidised bed cooler (2). A mixer (3) in which supplied thick sludge is mined with dried sludge is arranged upstream of the fluidised bed dryer. The dried sludge is branched off between the fluidised bed dryer (1) and the fluidised bed cooler (2). The amount of recirculated dried sludge is controlled depending on the temperature of the sludge mixture upstream of the fluidised bed dryer (1). The dust produced during drying is fed back to the drying process.