Recycle moisture evaporation system

Details Recycle moisture evaporation system Recycle moisture evaporation system

1995-12-15

1996-12-03

Bennett, Henry A.

Drying and gas or vapor contact with solids

Apparatus

Rotary drums or receptacles

366 25, 34137, 34135, F26B 1102

Patent

active

055795870

ABSTRACT:
A recycled asphalt product (RAP) drying apparatus comprising a three-zone counterflow RAP dryer and a duct system to recycle essentially all of the hot gases back through the system. The three-zone RAP dryer has a combustion zone at one end, a drying zone at the other end, and a buffer zone between the combustion and drying zones. A RAP inlet to introduce RAP into the dryer is included at one end of the drying zone, and a RAP outlet to remove RAP from the dryer is included at the other end of the drying zone. A duct pathway routes hot air from the drying zone back to the buffer zone so that hot air may be recycled through the apparatus.

REFERENCES:
patent: 2309810 (1943-02-01), West
patent: 4298287 (1981-11-01), McCarter, III et al.
patent: 4892411 (1990-01-01), Elliot et al.
patent: 4913552 (1990-04-01), Bracegirdle

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