| 摘要 |
The components of a liquid/liquid emulsion or dispersion (eg water in oil) are separated using an electrostatic force in combination with either a gravitational or hydrocyclonic force. The electrostatic field may be a pulsed unidirectional field applied between a high voltage electrode (cone 8) and a low voltage electrode (strip 15). Voltage and frequency ranges are given. In the electro-mechanical coalescer-separator shown, the dispersion enters through inlet tube 3. The water droplets in the dispersion will get charged between the metallic cone 8 and the metallic strip 15, between the cone 8 and the accumulated water layer at the bottom of container 23, and between the cone and its metallic support 19. The charged water droplets are attracted towards the accumulated water layer, which can be drained through outlet 5. The oil phase leaves though outlet 4. In Fig 6, not shown, the conical electrode 8 and the metallic strip 15 are longer and a swirling action is imparted to the dispersion causing separation by hydrocyclonic as well as electrostatic force. The containers in both embodiments are transparent to allow the separation process to be viewed.
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