Regenerative heating and melting device for recovered asphalt concrete rubble
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United States of America Patent
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-
Nov 20, 1984
Issued Date -
N/A
app pub date -
Nov 29, 1983
filing date -
May 15, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A regenerative heating and melting device is disclosed for treating asphalt concrete rubble for the recovery of an asphalt coated aggregate suitable for reuse. The apparatus includes a vertical cylindrical casing, an inlet for hot gas and an outlet for exhaust gas, conveyor means for conveying the rubble to the top of the casing and means for recovering the regenerated paving material from the casing. The internal space of the cylindrical casing is divided into a plurality of tier sections by partition plates. Each of the plates has an opening means to communicate with the adjacent lower tier section. A rotary shaft is provided in the cylindrical casing, the axis of which coincides with the axis of the cylindrical casing and extending through the tier sections and partition plates. The mixing blades are above and in sliding contact with the partition plates and of a dimension so that on the diameter, the diameter of the mixing blades is slightly less than the interior diameter of the casing to permit rotation of the mixing blades inside the casing with sufficient clearance to permit movement.
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