Robert E Mckenzie

US Patent:

46647023, May 12, 1987

Filed:

Feb 4, 1985

Appl. No.:

6/697605

Inventors:

David Barnes - Carrollton GA
Joseph A. Bass - Bremen GA
John D. Butler - Roopville GA
Robert H. McKenzie - Carrollton GA

Assignee:

Southwire Company - Carrollton GA

International Classification:

C22B 2100

US Classification:

75 68R

Abstract:

A method of efficiently melting aluminum and aluminum alloys in a vertical shaft furnace substantially completely by convection is disclosed. The vertical shaft furnace has a generally cylindrical cross-section with a refractory liner and a cast refractory hearth having a concave, generally conical shape. A plurality of downwardly inclined burners are provided in the walls of the furnace arranged in such a way as to prevent the high velocity burner flame from blowing the aluminum material to be melted across the furnace and into burners on the opposite furnace wall.

US Patent:

48444260, Jul 4, 1989

Filed:

Dec 10, 1986

Appl. No.:

6/939998

Inventors:

David Barnes - Carrollton GA
Joseph A. Bass - Bremen GA
John D. Butler - Roopville GA
Robert H. McKenzie - Carrollton GA

Assignee:

Southwire Company - Carrollton GA

International Classification:

F27B 116

US Classification:

266219

Abstract:

A vertical shaft furnace for and a method of efficiently melting aluminum and aluminum alloys substantially completely by convection is disclosed. The vertical shaft furnace has a generally cylindrical cross-section with a refractory liner and a cast refractory hearth having a concave, generally conical shape. A plurality of downwardly inclined burners are provided in the walls of the furnace arranged in such a way as to prevent the high velocity burner flame from blowing the aluminum material to be melted across the furnace and into burners on the opposite furnace wall.