Process and plant for mechanical and thermal dewatering of sludg

Details Process and plant for mechanical and thermal dewatering of sludg Process and plant for mechanical and thermal dewatering of sludg

1999-02-24

2000-12-19

Ferensic, Denise L.

Drying and gas or vapor contact with solids

Process

By centrifugal force

34323, 34423, 34221, 34222, 34224, F26B 508

Patent

active

061613053

ABSTRACT:
A process and apparatus for mechanical and thermal dewatering of solid-liquid mixture, particularly industrial and sewage sludges, feeds the sludge to a dewatering device to produce a dewatered material which is then dried in a thermal drier. The dewatered sludge is reduced to a granulate-like structure without any intermediate stage and is then dried immediately afterwards. An apparatus for implementing the process includes a mechanical dewatering device being directly connected to a feed unit to produce a granulate-like structure and which is permanently connected to the thermal drier.

REFERENCES:
patent: 4330411 (1982-05-01), Florin et al.
patent: 4970803 (1990-11-01), Keller
patent: 5215670 (1993-06-01), Girovich
patent: 5309849 (1994-05-01), Krebs
patent: 5426866 (1995-06-01), Rumocki
patent: 5611935 (1997-03-01), Thiemann et al.
patent: 5775004 (1998-07-01), Steier et al.
patent: 5960559 (1999-10-01), Brunnmair et al.

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