Two stage liquid filtraton apparatus

Liquid purification or separation – With heater or heat exchanger – Flow line connected in series with distinct separator

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Details

2102571, 210259, 210297, 210404, 2101951, B01D 3306

Patent

active

048348759

ABSTRACT:
A two stage liquid filtration apparatus including a first pre-filter stage for removing heavy small particulate contaminants from the liquid with a first housing defining an inlet and an outlet and a screening means dividing a central chamber therethrough to allow contaminants like sand to fall downwardly therefrom for pre-filtration thereof. The liquid is then carried to a second stage filter which is a rotary filtration means for further removing contaminants through a rotatable cylinder with internal baffles for discharging the waste at one end of the cylinder and discharging the filtered water downwardly about the periphery of the cylinder. The cylinder is formed of a filtration media. A liquid reservoir is positioned below the cylindrical filter which includes a tank means for receiving filtered liquid and a heating means for controlling the temperature thereof. An outlet is defined in the tank for interconnecting with respect to a return line for re-supplying the filtered liquid for further usage thereof. A deflector plate is included in the upper portion of the tank to receive the downwardly moving filtered liquid. The deflector plate extends below the level of the liquid for localizing of any floating contaminants or surface foam.

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