Asphalt manufacturing assembly

Details Asphalt manufacturing assembly Asphalt manufacturing assembly

1990-10-29

1994-03-15

Jenkins, Robert W.

Agitating

Mortar mixer type

With heating or drying

366 14, 366 23, B28C 546

Patent

active

052941973

ABSTRACT:
An asphalt manufacturing assembly (10) is disclosed that includes a rotatable cylindrical dryer drum (11) having an opening (14) in the front (12) for receiving virgin asphalt aggregate and for permitting the exhaust of fumes and an opening (18) in the back (13) for discharging the heated aggregate and for permitting the introduction of air. A burner (41) adjacent the back (13) introduces a flame and heat into the dryer drum (11). A longitudinal air conduit (22) is formed by a stationary annular shroud (20) around the back portion of the dryer drum (11) that extends longitudinally beyond the dryer drum back end (13). The shroud (20) includes two controllable discharge openings (24,25). The assembly (10) further includes a separate rotatable cylindrical mixer drum (51) having a materials inlet (54) for receiving the aggregate discharged from the dryer drum (11), reclaimed asphalt pavement, liquid asphalt and fines and a discharge opening (58) for discharging asphalt. A scavenger fan ( 95) is disposed generally between the two drums (11,51). Each drum (11,51) further includes a plurality of longitudinally and radially projecting paddles (28,32) attached to each's back end (13,53).

REFERENCES:
patent: 4946283 (1990-08-01), Musil

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