Abstract: In a metallurgical vessel (1) having a tapping apparatus (5) for the slag-free withdrawal of liquid metal (3) from a molten metal bath (3) which is disposed in the vessel (1), a first leg (11) of a discharge duct (10) passes through the refractory vessel wall (15) and an overflow edge (14) in the connecting region of the two legs (11, 12) of the discharge duct (10) is higher than the upper edge (18) of the inlet opening (17) of the discharge duct. The molten metal (3) in the discharge duct is preferably inductively heatable.

Abstract: In a charging material preheater for preheating charging material (60) which is to be charged into a furnace vessel (3), having a shaft (9) which is fixed in a frame structure (20) and which in its upper region has a closeable feed opening (61) for the charging material (60) and a gas outlet and in its lower region a discharge opening for the charging material (60) and a gas inlet, and whose shaft walls (33, 35) delimit a receiving space (62) for the charging material (60) to be heated, the shaft walls (34,35) are subdivided into shaft wall portions which are individually replaceably fixed in the frame structure (20).

Abstract: In a charging material preheater for preheating charging material (60) which is to be charged into a furnace vessel (3), having a shaft (9) which is fixed in a frame structure (20) and which in its upper region has a closeable feed opening (61) for the charging material (60) and a gas outlet and in its lower region a discharge opening for the charging material (60) and a gas inlet, and whose shaft walls (33, 35) delimit a receiving space (62) for the charging material (60) to be heated, the shaft walls (34,35) are subdivided into shaft wall portions which are individually replaceably fixed in the frame structure (20).

Abstract: In a charging material preheater for preheating charging material (60) which is to be charged into a furnace vessel (3), having a shaft (9) which is fixed in a frame structure (20) and which in its upper region has a closeable feed opening (61) for the charging material (60) and a gas outlet and in its lower region a discharge opening for the charging material (60) and a gas inlet, and whose shaft walls (33, 35) delimit a receiving space (62) for the charging material (60) to be heated, the shaft walls (34, 35) are subdivided into shaft wall portions which are individually replaceably fixed in the frame structure (20).

Abstract: In a tiltable arc furnace in which a furnace vessel (2) and a portal (4) for an electrode lifting and pivoting apparatus are arranged on a platform (1 and 3) of a furnace cradle which is tiltable by a tilting apparatus and which includes two mutually spaced cradle runner skids (16) which each run on a respective support path (17), wherein the furnace vessel (2) is arranged on a first platform region which is between the cradle runner skids (16) and the portal (4) is arranged on a second platform region which is outside the cradle runner skids (16) the two platform regions are in the form of separate platform portions (1, 3) which are connected together by a hinge pivot (13), the portal platform portion (3) carrying the portal (4) is supported by way of a further cradle runner skid (20) on a further rolling path (21) and is tiltable by the tilting apparatus synchronously with the vessel platform portion (1) carrying the furnace vessel (2).

Abstract: This invention concerns a smelting installation with an electric-arc furnace in which the roof of the oven vessel is constructed out of two units (7, 8) which are separated by an aperture (38) and can be moved independently of one another relative to the vessel horizontally. One of these units (8) consists of a shaft (9) which serves as preheater for the charge. The upper part of the vessel and the shaft (9) have a converging wall sector (42a, 58, 59).

Abstract: A metallurgical unit for smelting metal charge material and for post-treatment of the molten metal, which is tiltable from a starting position in a positive tilting direction (8) about a tilt axis (7), includes a melting vessel (1), with a furnace hearth (12) for receiving the molten metal (13), and a treatment vessel (2) disposed laterally on the melting vessel for metallurgical treatment of the molten metal. The molten metal (13) which flows away out of the melting vessel (1) upon tilting of the unit in the positive direction (8) can be transferred into the treatment vessel (2) by way of a passage (26) connecting the furnace hearth of the melting vessel (1) to the receiving chamber of the treatment vessel (2).