| abstract |
The invention relates to a demulsification separation system and a demulsification separation method for oil-water emulsion. The system comprises a three-section emulsion breaker, a microwave and ultrasonic generator, a connecting bent pipe, a lifting pipe, a primary hydrocyclone separator, a secondary hydrocyclone separator, a reflux pump, an oil-rich storage tank, a conditioning agent charging port, a screw feeder, a discharging pipe and the like. Through the demulsification and heating action of microwaves and ultrasonic waves, the three-section structural type design of the demulsification device, the fluid rotary motion mode, the circulating flow and utilization of oil-containing reflux liquid and the addition and use of a conditioning agent, the high-efficiency demulsification and separation of oil and water are realized, oil is efficiently recovered, a liquid-solid mixture is separated by a hydrocyclone and then enters the subsequent procedures, the oil-containing reflux liquid is recycled, the oil entrainment of the liquid-solid mixture is reduced, and the recovery efficiency and the oil quality of the oil are improved. |