Liquid purification or separation – Gravitational separator – Superposed compartments or baffles – e.g. – parallel plate type
Patent
1990-02-12
1991-06-11
Chiesa, Richard L.
Liquid purification or separation
Gravitational separator
Superposed compartments or baffles, e.g., parallel plate type
210523, 210525, 2105321, 210540, B01D 1728
Patent
active
050229923
ABSTRACT:
A sludge removal apparatus (10) disclosed includes a tank (12) having bottom (14), side walls (16,18) and first and second end walls (20,22) for receiving and holding an immiscible mixture of fluid and floatable sludge. A skimmer (32) mounted on the tank (12) is movable in a sequential path for skimming the sludge from the surface of the mixture. The tank bottom (14) and side walls (16,18) are sloped so that any settling particles are reintroduced into a high velocity fluid stream communicated into the tank bottom (14) for further processing. A guide portion (28) guides skimmer (32) into the sludge immediately in front of a diverter (26) in the direction of circulation within the tank (12) to eliminate regions of stagnated sludge on the mixture.
REFERENCES:
patent: 3121680 (1964-02-01), Ciabattari
patent: 3219190 (1965-11-01), Thune
patent: 3741399 (1973-06-01), Peterson
patent: 4432870 (1984-02-01), Russell
patent: 4470905 (1984-09-01), Pangburn et al.
patent: 4610785 (1986-09-01), Russell
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