Direct heating asphalt-aggregate recycle apparatus and method

Details Direct heating asphalt-aggregate recycle apparatus and method Direct heating asphalt-aggregate recycle apparatus and method

1976-12-27

1978-06-13

Jenkins, Robert W.

Agitating

Mortar mixer type

Methods

366 25, 366 33, 366154, 366180, 366225, B28C 520

Patent

active

040952843

ABSTRACT:
In an apparatus for heating and mixing asphalt-aggregate composition in which composition particles are exposed directly to hot gases of combustion, a plurality of lifters are secured around the drum interior surface adjacent the input end of the apparatus where flame and hot gases of combustion are supplied, opposite the output end, and a space is provided between the lifter surface and the interior drum surface, whereby coarse composition particles are alternately lifted and dropped by the lifters as the drum rotates, and any fine composition particles pass along the space between the lifter and drum interior surfaces. In another embodiment, a barrier plate is provided across the hollow drum interior, and having peripheral edge spaced apart from the drum interior surface, and behind which plate fine composition particles are introduced.

REFERENCES:
patent: 1363561 (1920-12-01), Browne
patent: 1734981 (1929-11-01), Philips
patent: 3321186 (1967-05-01), Lodige
patent: 3693945 (1972-09-01), Brock
patent: 3737149 (1973-06-01), Muntzer

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