VERFAHREN UND ANLAGE ZUM BEHANDELN VON SCHLAMM

VERFAHREN UND ANLAGE ZUM BEHANDELN VON SCHLAMM

PCT No. PCT/EP93/03533 Sec. 371 Date Aug. 18, 1995 Sec. 102(e) Date Aug. 18, 1995 PCT Filed Dec. 14, 1993 PCT Pub. No. WO94/14882 PCT Pub. Date Jul. 7, 1994A method for treating sludge by dewatering to form thick sludge and drying to form dry sludge includes the steps of mechanically predewatering t...

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Hauptverfasser: RUPPERT, IVAN, BUBLIES, JOERG, BRAUWEILER, HELMUT, THIEMANN, HEINZ, MOELLER, BURKHARD
Format: Patent
Sprache:ger
Schlagworte:
BLASTING
DRYING
DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
HEATING
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Zusammenfassung:PCT No. PCT/EP93/03533 Sec. 371 Date Aug. 18, 1995 Sec. 102(e) Date Aug. 18, 1995 PCT Filed Dec. 14, 1993 PCT Pub. No. WO94/14882 PCT Pub. Date Jul. 7, 1994A method for treating sludge by dewatering to form thick sludge and drying to form dry sludge includes the steps of mechanically predewatering thick sludge to produce predewatered thick sludge and mixing the predewatered thick sludge with non-cooled dry sludge to produce a sludge mixture. The temperature of the sludge mixture to be dried is measured and the dry substance contents of the dry sludge based on the measured temperature is determined. Fluctuations in the dry substance contents of the dry sludge are compensated by controlling the amount of recirculated dry sludge to be mixed with the predewatered thick sludge as a function of the temperature of the sludge mixture to be dried. The sludge mixture is dried to produce dry sludge and a portion of the dry sludge is recirculated to be mixed with the predewatered thick sludge.