Feed trough, method of feed trough fabrication, and feeder and system including feed trough

A feed trough for an electric arc furnace, comprising:

• a first arcuate plate and a second arcuate plate,
• each arcuate plate having opposing first and second end edges and opposing first and second side edges,
• the first and second end edges comprising an arcuate contour, and the first and second end edges of the first and second arcuate plates attached and first and second side edges of the first and second arcuate plates attached,
• a channel disposed between the first and second end edges, first and second side edges, and inner surfaces of the first and second arcuate plates,
• the channel comprising at least one serpentine flow path and at least one perimeter flow path, the at least one serpentine flow path disposed toward a midline of the feed trough and the at least one perimeter flow path disposed outwardly of the at least one serpentine flow path.

A feed trough for an electric arc furnace, comprising:

• a first arcuate plate and a second arcuate plate,
• each arcuate plate having opposing first and second end edges and opposing first and second side edges, the first and second end edges comprising an arcuate contour and a junction between the first end edge and each of the first and second side edges comprising an arcuate contour;
• at least one first spacer attached to the first end edge of the first plate and the first end edge of the second plate,
• the first spacer having an arcuate cross-section and an arcuate contour;
• at least one second spacer attached to the junction between the first side edge and the first end edge of the first plate and the junction between the first side edge and the first end edge of the second plate, and
• at least one third spacer attached to the junction between the second side edge and the first end edge of the first plate and the junction between the second side edge and the first end edge of the second plate,
• the second spacer and the third spacer each having an arcuate cross-section and an arcuate contour;
• and
• at least one fourth spacer attached to the first side edge of the first plate to the first side edge of the second plate, and
• at least one fifth spacer attached to the second side edge of the first plate and the second side edge of the second plate,
• the fourth spacer and the fifth spacer having an arcuate cross-section.