Oil bearing sand treatment method and device

The invention discloses an oil bearing sand treatment method and device. The oil bearing sand treatment method comprises the steps of two times of mechanical stirring, two times of flow whirling through swirlers and one time of dehydration through a vibrating screen. The oil bearing sand treatment device comprises a first-stage stirring barrel, a first-stage swirler feed pump, the first-stage swirler, a second-stage stirring barrel, a second-stage swirler feed pump, the second-stage swirler, the vibrating screen and the like. A discharge outlet of the first-stage stirring barrel is connected with a feed pipe of the first-stage swirler. An overflow pipe of the first-stage swirler is connected with an oily wastewater treatment system. An underflow pipe of the first-stage swirler is connected with a feed inlet of the second-stage stirring barrel. A discharge outlet of the second-stage stirring barrel is connected with a feed pipe of the second-stage swirler. An overflow pipe of the second-stage swirler is connec