ELECTRIC OVEN EQUIPPED WITH VIDEO EQUIPMENT

Abstract

To observe the internal state of the melting chamber in an electric furnace directly and clearly, the design proposes that the electric furnace be equipped with video equipment including: the melting chamber; the preheating chamber; and video equipment for observing the inside of the melting chamber. The video equipment includes: a transition lens; an inner tube containing the transition lens with an outer diameter of 100 mm or less; an outer tube containing the inner tube; and an imaging device positioned at the end of the axis of the transition lens on the outside of the furnace. The imaging device is positioned through the opening in the furnace wall or lid so that the transition lens is positioned 300 mm to 3500 mm from the highest molten iron interface in the vertical upward direction and the imaging device is positioned 300 mm or more from the inner wall of the furnace wall or lid in the outward direction.