Stoves and furnaces – Melting furnaces
Patent
1991-10-07
1994-03-08
Price, Carl D.
Stoves and furnaces
Melting furnaces
404 95, 432102, E01C 1945
Patent
active
052918769
ABSTRACT:
An apparatus for feeding preheated aggregate material, such as for the production of asphalt. A feed hopper includes a heater within its interior and positioned adjacent a slotted discharge opening at the lower end of the hopper. A tent-like cover is positioned above the heater to deflect aggregate material from contacting the upper portion of the heater and to transfer heat to the aggregate material in a uniform and efficient manner. The heater may preferably be a gas-fired radiant heater extending lengthwise parallel to and for the full length of the slotted discharge opening. A series of hoppers may be arranged in side-by-side relation and a common conveyor positioned beneath the individual feed conveyors of each hopper to direct the preheated aggregate material to a subsequent processing apparatus, such as a drum mixer or other dryer, used for the production of asphalt.
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Astec Industries Inc.
Price Carl D.
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