Agitating – Mortar mixer type – With heating or drying
Patent
1996-04-04
1997-09-09
Cooley, Charles E.
Agitating
Mortar mixer type
With heating or drying
34137, 432110, 432111, 432118, B28C 546
Patent
active
056648820
ABSTRACT:
A system for concurrently remediating contaminated soil and producing hot mix asphalt includes a single inclined rotary drum; a burner assembly with a burner head spaced intermediately within the drum and oriented to direct a flame and hot gas stream upstream therefrom; a secondary air tube for providing atmospheric air to the burner head for supporting combustion; a drying zone with veiling flights upstream from the burner head for receiving, drying and heating virgin aggregate; a combustion zone with combustion flights downstream from the drying zone and upstream from the burner head for receiving and remediating contaminated soil by heat transfer from the virgin aggregate, the flame and the hot gas stream and for oxidizing volatile contaminants vaporized from the contaminated soil; an isolated mixing zone for receiving various materials including the virgin aggregate, the remediated soil, recycle asphalt, and certain constituents for producing hot mix asphalt therein from thermal energy contained within those materials. A method for concurrently remediating soil and producing hot mix asphalt in a single rotary drum consistent with the foregoing is provided.
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Green Andrew W.
Musil Joseph E.
Cedarapids Inc.
Cooley Charles E.
Schoonover Donald R.
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