F - Mech Eng,Light,Heat,Weapons – 26 – B
Patent
F - Mech Eng,Light,Heat,Weapons
26
B
F26B 3/347 (2006.01) C02F 1/30 (2006.01) C02F 1/48 (2006.01) C02F 11/12 (2006.01) F26B 7/00 (2006.01) F26B 17/00 (2006.01) F26B 19/00 (2006.01)
Patent
CA 2068228
The invention relates to a process and an apparatus for drying sludge, in particular sewage sludge, or moist bulk material, wherein the material to be dried is heated by supplying energy by means of an electromagnetic alternating field generated between electrodes in a sealed pressurized vessel at an overpressure and the material moisture evaporated by the heating is used as heat transfer medium for heating the material to be dried in a step which is separate from the heating in the electromagnetic alternating field. In this process, the material to be dried is received with electrically insulated contiguous contact with the electrodes located in the pressurized vessel at least for a dwell time which is necessary for the heating and is then subjected to a flash drying.
Wosnitza Franz
Zimmermann Georg
Fetherstonhaugh & Co.
Sicowa Verfahrenstechnik Fur Baustoffe Gmbh & Co. Kg
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