DERecycling
Dewatering column in waste oil regeneration
Waste oil recovery is carried out in several process steps, one of which takes place in the dewatering column. The waste oil, which contains water and components that boil off easily, is heated to a temperature of +105 °C in the lower part of the column. The water vaporizes and is conducted away after condensation. After reaching the proper temperature, the oil is transported through pipes to the upper part of the column, where the remaining water vaporizes. Controlling the level in the column is the prerequisite for optimal dewatering.
Level measurement with VEGAFLEX 66
The surface of the oil is very agitated due to the action of the pumps and the heating. A direct level measurement in the column is not possible, so it is carried out in a bypass tube. The TDR sensor VEGAFLEX 66 is used here. Together with the rod probe, the bypass tube itself becomes a coaxial system. A reliable measurement is guaranteed even if there are welded seams or deposits in the bypass or overfilling up to the sensor occurs.
» VEGAFLEX 66
