Apparatus and method for recycling used asphalt-aggregate compos

Details Apparatus and method for recycling used asphalt-aggregate compos Apparatus and method for recycling used asphalt-aggregate compos

1976-12-27

1978-08-01

Jenkins, Robert W.

Agitating

Mortar mixer type

Methods

366 25, 366 33, E01C 1910

Patent

active

041047362

ABSTRACT:
An improved asphalt-aggregate recycling process includes heating asphalt-aggregate composition by direct exposure to hot gases of combustion to form a gaseous exhaust mixture of carbon dioxide, water vapor and hydrocarbon volatiles from the heated asphalt, subjecting the gaseous mixture to a centrifugal force sufficient to separate the mixture into a first layer comprising a major amount of the hydrocarbon volatile condensate particles, and a second layer comprising a major amount of the carbon dioxide and water vapor. The first layer containing the condensed hydrocarbon volatiles is then separated out and preferably directed to a hydrocarbon burner as fuel for heating the asphalt-aggregate composition. The improved apparatus improves means for centrifugally physically separating the hydrocarbon from the gaseous mixture.

REFERENCES:
patent: 2805052 (1957-09-01), Preeman
patent: 2945683 (1960-07-01), Martinson
patent: 3106384 (1963-10-01), Preeman
patent: 3832201 (1974-08-01), Shearer
patent: 3866888 (1975-02-01), Dydzyk

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