Liquid purification or separation – With heater or heat exchanger – With mechanical agitator or movable separator
Patent
1978-02-16
1980-01-22
Sever, Frank
Liquid purification or separation
With heater or heat exchanger
With mechanical agitator or movable separator
34 60, 34185, 34DIG6, 210182, 210294, 210360R, 233 11, B01D 1700
Patent
active
041849590
ABSTRACT:
Described is a sludge recovery apparatus in which influent is admitted downwardly via a vertical motor-driven dual-speed hollow coaxial drive shaft assembly into a hollow open-bottom downwardly-converging cone-shaped centrifugal separator member spun by the outer shaft of such assembly, where liquid from the influent leaves at the top and sludge from the influent is scraped from the inner wall of the separator member for gravity discharge at the bottom by a spiral-shaped scraper spun by the inner shaft of such assembly at a slightly different speed than the separator member. Sludge thus dislodged from such member drops onto a radiantly-heated continuously-rotated drying table having a discharge scraper station and automatic drop doors for gravity ejection of the table-dried sludge into an open-top sludge salvage container.
REFERENCES:
patent: 239222 (1881-03-01), Burgess
patent: 1770970 (1930-07-01), Colby
patent: 2931882 (1960-04-01), Strauss
patent: 3419210 (1968-12-01), Schneider et al.
Campbell J. R.
Sever Frank
Westinghouse Electric Corp.
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