Metallurgical apparatus – Means for melting or vaporizing metal or treating liquefied... – With means to discharge molten material
Patent
1978-06-30
1981-11-24
Rosenberg, P. D.
Metallurgical apparatus
Means for melting or vaporizing metal or treating liquefied...
With means to discharge molten material
75 44R, 75 72, 266218, C21C 542
Patent
active
043019978
ABSTRACT:
An improved vertical furnace for melting metal pieces, such as pieces of copper cathode. The furnace has a generally round interior wall of refractory brick material which encloses a vertical melting chamber having a plurality of burner openings through the refractory wall. Heat, being injected through these openings by means of a novel burner design, melts the metal pieces under metallurgically controlled conditions. The burners are arranged near the bottom floor of the melting chamber which is sloped toward a single outlet thus allowing the molten metal to continuously drain from the melting chamber. The burners are fed a mixture of fuel and air from a plurality of remote mixing stations so as to reduce turbulence at the burners thereby significantly reducing the operating noise level and refractory wear compared to prior art furnaces. A combustion chamber between the burner and the melting chamber is provided so as to prevent entry of uncombusted fuel and/or air, thereby maintaining the closely controlled atmosphere in the melting chamber.
REFERENCES:
patent: 3547624 (1970-12-01), Gray
patent: 3833356 (1974-09-01), Luth
patent: 3837840 (1974-09-01), Poos
patent: 3884677 (1975-05-01), Wenzel
patent: 3892517 (1975-07-01), Ebeling
Berry Milton E.
Pariani Ronald L.
Hanegan Herbert M.
Linne Robert Steven
Rosenberg P. D.
Southwire Company
Tate Stanley L.
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