Sludge processor

Details Sludge processor Sludge processor

1995-09-20

1997-08-26

Kwon, John T.

Furnaces

With fuel treatment means

Preliminary refuse treatment means

110229, 110258, D06F 7500

Patent

active

056601247

ABSTRACT:
An apparatus for drying and heating sludge to remove pathogens and to dry the sludge into a powder form which includes an elongate housing having an endless chain conveyor inside. The conveyor having outwardly extending scrapers for slowly urging solid material from one end of the housing to the other. The housing is heated to heat the sludge and a fan removes moisture laden air from within the housing. The scrapers are provided in rows and include specialized scrapers including plows, inclined paddles, and round rods to sequentially split, redirect, split, and redirect again the stream of sludge being urged through the housing. By so mixing the stream of sludge, cold and hot spots are avoided during heating and a build up of sludge on a floor of the housing is avoided.

REFERENCES:
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patent: 3744145 (1973-07-01), Maxwell et al.
patent: 3808701 (1974-05-01), Bachmann
patent: 4276701 (1981-07-01), Takacs et al.
patent: 4532872 (1985-08-01), Andersson
patent: 4726301 (1988-02-01), Des Ormeaux et al.
patent: 5020452 (1991-06-01), Rybak
patent: 5263267 (1993-11-01), Buttner et al.
patent: 5271163 (1993-12-01), Pikus et al.

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