Method and apparatus for treating asphaltic concrete paving mate

Details Method and apparatus for treating asphaltic concrete paving mate Method and apparatus for treating asphaltic concrete paving mate

1987-03-20

1989-08-15

Bennet, Henry A.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 22, 34 57R, 34 57A, 366 4, F26B 306

Patent

active

048562025

ABSTRACT:
A method of heating reclaimed asphalt paving is shown and described. An air sorter removes fine materials from the reclaimed asphalt paving, and an air circulating dryer which utilizes high velocity air impingement, removes the moisture from the material. A combustion heated recirculating air dryer or dryers is used to raise the temperature of the material to a first desired temperature and a microwave heating tunnel is used to raise the temperature to a final desired temperature. A recirculating air dryer which has sufficient velocity to form clear spots between wind rows on a conveyor belt is also shown and described.

REFERENCES:
patent: 3060590 (1962-10-01), Brown
patent: 3229377 (1966-01-01), Hoyt
patent: 4096588 (1978-06-01), Mendenhall
patent: 4481039 (1984-11-01), Mendenhall

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