Patent attributes
A method for utilizing recycled asphalt is provided. In exemplary embodiments, the method may comprise: mixing input feed with at least one of an asphalt rejuvenator and virgin liquid asphalt in a pre-coater/mixer; allowing the at least one of the asphalt rejuvenator and the virgin liquid to soften residual asphalt in the input feed and encapsulate any fine particles; discharging the mixture into a spiral section; feeding the mixture into a rotary dryer comprising a counterflow zone and a temperature elevation zone; activating the drying process and directing a heated air stream into the rotary dryer through a rotating chamber; allowing a portion of the heated air to escape through the counterflow zone and into the temperature elevation zone; liberating surface moisture from the mixture along with a portion of the heated air via an outlet; processing the exhaust from the system; and discharging a finished mixture.
