| 摘要 |
<p>An electric furnace has an inlet opening for introduction of starting materials in the upper region thereof. A pre-melting vessel is arranged above the furnace and has a discharge opening above and in communication with the inlet opening of the furnace. The bottom portion of the furnace is formed with a depression in which the starting material forms a body after its introduction through the inlet opening and is heat-treated so as to obtain slag and steel. The furnace is provided at its sides with a pair of mounting members each having a cam surface of part-circular configuration having a center on an axis which extends substantially horizontally and is located at the inlet opening of the furnace. A plurality of rollers engages the cam surfaces, the rollers being mounted on a support for rotation about their axes. An interchangeable sleeve-shaped element bounds the inlet opening and may be funnel-shaped and/or diverge in the downward direction, the axis extending through the narrowest region of the sleeve-shaped element. Due to this mounting of the furnace, and due to the shape of the sleeve-shaped element, the starting materials are continuously introduced through the inlet opening regardless of the tilted position of the furnace. The furnace further includes outlet openings for slag and steel which may be tapped in the tilted positions of the furnace.</p> |
