| 摘要 |
For the separation of a contaminated floating top layer of oil or oil substances, a continuous laminar flow is created on or near the surface, in order to achieve a high efficiency. The special feature of this is that the optimum separation of the contaminated oil liquid is achieved by creating a drop in the level of the liquid to be cleaned as it passes from the inflow area to the discharge area, after separation has occurred. The creation of this is controlled by a number of parameters, such as the flow, the thickness of the layer, etc. and, furthermore, by placing a number of baffles (8 8') in the path of the flowing liquid (V) as it moves through a tank (1). The total amount of liquid flowing through the tank (1) is now adjusted in such a way that the correct control of the upper laminar flow (5) and the dominant more turbulent lower flow near the bottom (9) of the tank (1) produces a controllable constant difference in height (.delta.h). This total difference in height (.delta.h) can also be attained by cascade operation. Figure 2
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