METHOD FOR CLEANING RECLAIMED ASPHALT
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United States of America Patent
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Issued Date -
Nov 9, 2023
app pub date -
May 6, 2022
filing date -
May 6, 2022
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Abstract
A method is disclosed for removing oil from oil covered rocks of reclaimed asphalt that is milled from pavement of a roadway. The oil covered rocks are cleaned so as to be suitable to be mixed with virgin rocks to make new asphalt. The oil covered rocks are submerged within and moved through a water filled bath by an oil scrubber (e.g., a motor driven screw or set of paddles) where the rocks are agitated and rubbed together to cause the oil to separate therefrom. To enhance the oil removal process, steam is sprayed under pressure into the bath from an overhead manifold. To further enhance the oil removal process, the rocks are preheated within an insulated hot box prior to their receipt by the water bath. The cleaned rocks are removed from the bath to be collected, dried and recycled.
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