Impregnant asphalt preparation device and method

The invention discloses an impregnant asphalt preparation device, and belongs to the technical field of impregnated asphalt preparation. The impregnant asphalt preparation device comprises a raw material tank, a distillation tower, a reaction kettle, a centrifugal separator, a settling tank and a solvent tank, discharge ports of the raw material tank and the solvent tank are communicated with the reaction kettle, the reaction kettle comprises a lower discharge pipe located at the bottom and an upper discharge pipe arranged on the side wall in a lifting mode, the upper discharge pipe is communicated with the centrifugal separator, and the lower discharge pipe is communicated with the settling tank. A supernatant outlet of the centrifugal separator is communicated with the settling tank, the lower discharge pipe and a subnatant outlet of the settling tank are communicated with a feed port of the distillation tower through pipelines, and the plurality of solvent tanks are respectively used for containing a disso