Furnace
OwnerAndrew D. Debreyinventor
Life of this patent
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Abstract
The invention relates to reverberatory furnaces used to operate upon baths of light metals, non-ferrous metals and alloys thereof. Reduction of wear on furnace walls, of energy used during operation and of dross formation on the metal bath, is achieved by a furnace (11) with a container (12) and roof (13) which form a shallow heating chamber (37) above the bath surface. A burner (14) directs a tight flame (39) to impinge against the bath surface.
Claims4
A furnace for operation upon baths of light metals, non-ferrous metals and alloys thereof, said furnace comprising:
- container means for holding the metal bath;
- roof means attached to said container means, and
- cooperating with said container means to form a shallow heating chamber between the surface of the bath and the underside of said roof means;
- shallow heating chamber means formed between the surface of the bath and underside of said roof means by cooperation of said container and roof means;
- and
- fuel-burner means, carried by the opening through roof means, for directing a flame downwardly to impinge against the metal bath surface, and
- said heating chamber shallow dimension is from 2.5 to 5.0 centimeters, between the surface of the bath and said roof means underside.
A furnace for operation upon baths of light metals, non-ferrous metals and alloys thereof, said furnace comprising:
- container means for holding the metal bath;
- roof means attached to said container means;
- shallow heating chamber means formed between the surface of the bath and underside of said roof means, by cooperation of said container and said roof means;
- and
- fuel-burner means, carried by and opening through said roof means, for directing a flame downwardly to impinge against the metal bath surface.
A method of holding a bath of light metal or light metal alloy, comprising the steps of placing a bath of a quantity of such metal or metal alloy in a container at least partially covered by a roof means, forming a heating chamber such that the bath surface is disposed 2.5 to 5.0 cms from the roof means' undersurface, and directing a high temperature, high velocity flame to impinge normal to the surface of the bath.
Dependencies are inferred from the claim text.