| 摘要 |
An improved apparatus for separating liquids and particularly separating oil from the surface of water contained in a tank. The apparatus includes a partially submerged drum mounted to rotate in the water tank and a film of oil and water is picked up on the surface of the rotating drum and removed by a doctor blade. The removed oil and water mixture flows through a trough and is discharged into the upper end portion of a vertical tube. The lower open end of the tube is located beneath the level of the water and the tube has an overflow outlet located at a higher level than the level of the water. The oil, having a lesser density than the water, will collect in the upper end in the tube and the level of oil will rise and is discharged through the overflow outlet, thereby providing a full separation of the oil from the water. To periodically clean oil sludge from the doctor blade and trough, an air operated aspirating unit is utilized to draw water from the tank and discharge the water in the form of a jet along the doctor blade and within the trough.
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