Liquid purification or separation – With movable support – Float
Patent
1994-11-28
1997-07-01
Kim, John
Liquid purification or separation
With movable support
Float
210400, 210526, 210923, 210924, C02F 140, E02B 1504
Patent
active
056434499
ABSTRACT:
An apparatus for recovering oil-based liquid from a body of liquid including a first layer of the oil-based liquid and a second layer of a second liquid having an interface with the first layer is disclosed. The apparatus includes an endless loop of oil-based liquid absorbent material extending downward a vertical distance into the first layer for absorbing the oil-based liquid therefrom and a drive conveying the absorbent material in a substantially vertical path from the first layer. The apparatus also includes a guide submerged in the body of liquid directing the absorbent material through the first layer. The guide has a buoyancy selected to maintain the absorbent material in the first layer by varying the vertical distance in response to a variation in the level of the interface. The guide includes a weight and a guide roller mounted to the weight for guiding the absorbent material through the oil-based liquid and the weight has a buoyancy selected for the guide roller to float up and down in response to variations in the level of the interface to guide the absorbent material through the oil-based liquid. The guide roller is in the form of an elongated cylinder having opposite ends mounted to the weight. The guide can include two guide rollers spaced laterally from each other and mounted to the weight or two separate guide rollers mounted to two separate weights spaced laterally from each other and connected by a rigid connector.
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