Separator capable of separating oil and water

Abstract

The invention discloses a separator capable of separating oil and water. The separator comprises a separation tower, an air flotation device and a separation unit, wherein the air flotation device is provided with a bubble generation device, is fixedly mounted in the separation tower and is capable of generating electric microbubbles; the separation device is mounted at the upper part of the separation tower and comprises an oil guiding slot; the microbubbles float up under the action of air flotation, adsorb emulsified oil beads in oily water and float on the surface; the emulsified oil beads generate a demulsification effect while adsorbing and floating or floating on the surface, and demulsified oil content floating on the liquid surface overflows out of an upper opening of the separation tower under the pushing of air and flows into the oil guiding slot. The separator has the advantages that the problem of oil-water separation is solved, the energy consumption can be saved, the operation cost is lowered, and secondary pollution can be avoided; and the separator can play a very important role in the treatment of oil-field waste liquid, waste and the like and has great social and economic significances.

Description

technical field [0001] The invention relates to a separator capable of separating oil and water, in particular to a separator capable of being used in oily sewage in oil fields. Background technique [0002] Oily waste water is produced in every process of oilfield exploitation, such as the sewage released from the discarded oily mud during drilling operations, the oil taken out from the formation during the flowback process of fracturing flowback fluid, the oil in oilfield produced water, and the The oily waste liquid produced by a kind of leakage, etc. Among them, the oil content index is an important index to measure whether the oily wastewater is treated to be harmless. Traditional oil removal methods include compressed air flotation, chemical agent coagulation sedimentation, membrane filtration, etc. These methods have their own advantages, but they all have the disadvantages of high energy consumption, high operating costs, and secondary pollution. Contents of the i...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a separator capable of separating oil and water, which overcomes the disadvantages of inconvenient separation or high separation cost of oily wastewater in the background technology, which will cause secondary pollution