Liquid purification or separation – Serially connected distinct treating with or without storage... – One unit inside another
Patent
1984-11-01
1985-10-08
Bashore, S. Leon
Liquid purification or separation
Serially connected distinct treating with or without storage...
One unit inside another
2102571, 210297, 210326, 210327, 21033301, 210402, B01D 3306, B01D 3516
Patent
active
045459088
ABSTRACT:
An apparatus for separating loose paper pieces from a bath of caustic soda including a tank with a hopper-like structure disposed at the top of the tank. A helical screw conveyor is operatively disposed below the hopper and has its discharge exteriorly of the tank. A pair of perforated stainless steel screen-type spaced rotatable drums is operatively disposed between the hopper and the conveyor, and a hollow stainless steel screen-type cylindrical filter (with a nylon filter cover) is positioned in the bottom of the tank and has an outlet extending to the tank exterior. In operation, a caustic soda solution mixed with paper pieces in the hopper is discharged by gravity onto the rotating drums which feed the paper pieces via the outer (rotating) drum surfaces into the conveyor and then to the exterior of the tank. The caustic soda solution flows through the perforations in the drums and then to the bottom of the tank and through the cylindrical filter for final filtering and then to the tank exterior.
The drums and filter have back flushing devices to clean the interiors thereof. A vertical screw conveyor is operatively secured to the discharge of the helical screw conveyor for transporting the paper pieces from the helical screw conveyor up above the apparatus and onto an associated conveyor chute. Brushes are selectively positioned in the apparatus to clean the exterior surfaces of the drums and filter.
REFERENCES:
patent: 1554943 (1925-09-01), Antoine
patent: 2592983 (1952-04-01), Hildebrandt
patent: 3244281 (1966-04-01), Kurz
patent: 4176067 (1979-11-01), Vamvakas
Bashore S. Leon
Hastings K. M.
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