The invention discloses a waste
asphalt mixture oil stone separation device with bio-oil as
solvent oil and a using method thereof. The old
asphalt mixture oil stone separation device comprises a bio-
oil supply mechanism, a waste
asphalt mixture conveying belt, an oil stone separation generator, an oil stone filtering mechanism, an oil stone separated aggregate conveying belt and an aggregate grading screening mechanism. The upper surface of a bearing net in the oil stone filtering mechanism is high in left and low in right, and the
slope gradient is 3%; a plurality of round holes are evenly formed in the surface of multiple
layers of vibrating screens in the aggregate grading screening mechanism, the hole
diameter of the vibrating screens is gradually decreased from top to bottom, and each vibrating screen is of a
conical surface structure with the
slope gradient of 3%. Waste asphalt in a waste asphalt mixture is dissolved by adopting bio-oil, oil stone separation of the waste asphaltmixture is economically and efficiently achieved, aggregate obtained after oil stone separation can be directly used as a recycled aggregate for complete utilization, asphalt does not need to be extracted from bio-oil obtained through
filtration, the bio-oil is recycled and stored through a bio-oil recycling tank, 100% of the bio-oil is used as a bio-asphalt preparation
raw material, re-extraction is not needed, and the process is simple.