Asphalt reclamation unit

Details Asphalt reclamation unit Asphalt reclamation unit

1981-06-01

1983-12-06

Scott, Samuel

Stoves and furnaces

Melting furnaces

126391, E01C 1908

Patent

active

044186827

ABSTRACT:
A unit for heating initially solid asphaltic material to provide asphaltic concrete in a condition suitable for application, including an inner enclosure defining a volume for containing the material to be heated, an outer enclosure surrounding and spaced from the inner enclosure to define a space beneath the inner enclosure and passages for air flow around the walls of the inner enclosure, infrared energy sources within the latter space for heating air, heating chambers projecting upwardly from the floor of the inner enclosure above the infrared sources to provide regions through which hot air rises from the sources, and flues extending transversely from the upper portions of the heating chamber to the side walls of the inner enclosure for conducting the heated air from the heating chambers to the aforementioned passages. Heat-shielding means are interposed between the infrared sources and adjacent portions of the inner enclosure to prevent local overheating of the material. The unit is operated to heat the initially cold material to a temperature between 275.degree. and 300.degree. F. and to maintain it at that temperature until it is used.

REFERENCES:
patent: 950413 (1910-02-01), Stedman et al.
patent: 2496113 (1950-01-01), Wollner
patent: 3315659 (1967-04-01), Schmitz
patent: 3386435 (1968-06-01), Heller
patent: 3503382 (1970-03-01), Wollner
patent: 3577976 (1971-05-01), Heller
patent: 4192288 (1980-03-01), Heller

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