VORRICHTUNG ZUR HERSTELLUNG VON SCHMELZFLÜSSIGEM METALL IM ELEKTROOFEN.

摘要

PCT No. PCT/FR91/00980 Sec. 371 Date Aug. 6, 1992 Sec. 102(e) Date Aug. 6, 1992 PCT Filed Dec. 6, 1991 PCT Pub. No. WO92/10594 PCT Pub. Date Jun. 25, 1992.Installation for producing steel by melting scrap comprising an electric furnace (2') supplied with individual batches of scrap sequentially charged into the furnace after preheating in a preheating chamber (4) forming a batch container open at both ends and having a releasable bottom. The preheating chamber is mounted on a transporting device for movement between a first, preheating position, in which it is connected to a hot gas circulating circuit, and a second position in which it empties the batch of preheated scrap into the furnace. The lower portion of the side wall of the preheating chamber (4) forms a skirt (43) with a wide downwardly directed opening, and the chamber (4) is combined, in the preheating position, with a movable device (54) for sealably engaging the lower end (42) of the skirt (43) with a matching stationary base plate (3), whereby the skirt is sealed in the preheating position.