Importance

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Abstract

A method and apparatus for feeding iron-bearing particles into a metallurgical furnace such as an electric arc furnace, comprising a vessel for containing a bath of molten iron, having a wall extending above the bath of molten iron, a preferably screw type feeder mounted on the exterior of the vessel, a feeding port in the vessel wall shaped to permit passage of the feeder into the interior of the bath of vessel and located at such a height from the molten iron so that no molten materials will spill out from the furnace through the port during the normal operation and maneuvering of the furnace; and actuating means for extending the screw type feeder from a retracted position out of the vessel to an extended position into the vessel. Iron-bearing particles are charged at a point proximate to the bath of molten iron, and at the same time are positively pushed into the slag layer in the direction of the molten iron and also of the hottest zone of the furnace whereby the overall productivity of the furnace is increased.

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First Claim