Patent ID: 7758235

Claim:
A recycled asphalt pavement preparation method using a recycled asphalt pavement preparation system comprising: providing milled asphalt for recycling, providing a heater and drier unit, providing a heat exchange unit, providing a hollow screw auger within the heater and drier unit, heating heat exchange fluid and hot gas in a burner unit, insulating the heater and drier unit with an insulation jacket, feeding recycled asphalt pavement into an inlet on the heater and drier unit, moving the recycled asphalt pavement through the heater and drier unit with the hollow screw auger, heating the recycled asphalt pavement by conducting heat from the heat exchange fluid moving through the hollow screw auger, heating the recycled asphalt pavement by contacting the recycled asphalt pavement with the hot gas moving through the heater and drier unit, recirculating the heat exchange fluid and the hot gas back to the burner unit, and removing the heated recycled asphalt pavement from the heater and drier unit through an outlet.