Heating of aggregate material for asphalt mixing

Details Heating of aggregate material for asphalt mixing Heating of aggregate material for asphalt mixing

1974-03-13

1976-03-09

Camby, John J.

Heating

Work chamber having heating means

Having means by which work is progressed or moved mechanically

432 17, 432164, F27B 902

Patent

active

039429440

ABSTRACT:
A method and an apparatus for heating a granular aggregate for mixture with asphalt by means of a flue gas being chemically inert to the aggregate. The aggregate is moved intermittently within the gas under control of the stationary periods of driven screw conveyors. The apparatus has several heating sections, each section having a conveyor, a thermostat with a sensing device at the end of the section, and possibly also an oil burner, the thermostat being connected to the driving means of the conveyor.

REFERENCES:
patent: 804379 (1905-11-01), Chase
patent: 823393 (1906-06-01), Chase
patent: 2251150 (1941-07-01), Merkel
patent: 3259995 (1966-07-01), Powischill
patent: 3659829 (1972-05-01), Pospisil et al.
patent: 3746537 (1973-07-01), Haibach

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