Abstract: A continuous scrap feed into an electric smelting furnace (EAF) having a channel connected at one end to an opening in a wall of the smelting furnace and has at its other end a charging device for the scrap. An extraction device for the off-gases which are guided through the channel serve to preheat the scrap, this extraction device being connected to the channel between the two ends of the channel located closer to the smelting furnace than the scrap feed in relation to the total length of the channel. The extraction device is a single-stage blower whose intake opening is oriented in the direction of the smelting furnace, and the clear cross section of the channel between the extraction device and the scrap feed is adapted to the amount of scrap so that the height of the scrap charge substantially fills the clear cross section.

Abstract: A heating device for preheating a container (3), such as a transfer ladle, transferring liquid metal in melting operations, which is lined with refractory material, wherein the container is heated in a heating stand (1) having a container closure lid (2), is characterized by the use of porous burners (7) for heating the container (3) and keeping it warm.

Abstract: A continuous scrap feed into an electric smelting furnace (EAF) having a channel connected at one end to an opening in a wall of the smelting furnace and has at its other end a charging device for the scrap. An extraction device for the off-gases which are guided through the channel serve to preheat the scrap, this extraction device being connected to the channel between the two ends of the channel located closer to the smelting furnace than the scrap feed in relation to the total length of the channel. The extraction device is a single-stage blower whose intake opening is oriented in the direction of the smelting furnace, and the clear cross section of the channel between the extraction device and the scrap feed is adapted to the amount of scrap so that the height of the scrap charge substantially fills the clear cross section.

Abstract: A heating device for preheating a container (3), such as a transfer ladle, transferring liquid metal in melting operations, which is lined with refractory material, wherein the container is heated in a heating stand (1) having a container closure lid (2), is characterized by the use of porous burners (7) for heating the container (3) and keeping it warm.

Abstract: The invention relates to a burner arrangement (1) in particular for heating, drying or keeping warm, in particular a distributor (5) of a continuous casting unit and consisting of a flat arrangement of at least one burner (2). The burner(s) (2) is/are embodied as a porous burner (10).

Abstract: A process for producing steel and for obtaining slag having a high content of additional elements such as vanadium in a two-step process. Liquid pig iron is initially blown onto a high-grade slag at a lower temperature, the slag being further processed separately after tapping, while the pig iron is supplied to at least one additional converter in which it is blown at a higher temperature to form steel. A high-grade slag is generated while shortening the steel production process using the process in that the intermediate metal product that is tapped from the first converter is subjected to a heating and/or holding phase before being supplied to the second converter.

Abstract: The invention relates to a metallurgical vessel (1), in particular an arc furnace, having a holding container (2) for metal melt and having a lid (3), by means of which the holding container (2) can be at least partially covered, wherein the metallurgical vessel also has at least one lance (4, 5) for the supply of a medium into the metallurgical vessel (1), and wherein the at least one lance (4, 5) is pivotably arranged on or in the metallurgical vessel (1). In order to be able to introduce a medium into the interior of the furnace in an improved manner, the invention provides that at least one lance (4, 5) is arranged in the region of the lid (3) of the metallurgical vessel (1) on a revolute joint (6) which has a rotational axis aligned in a horizontal direction (H).

Abstract: The invention relates to a burner arrangement (1) in particular for heating or keeping warm, in particular casting stream protection devices and/or immersion casting devices of a continuous casting plant, comprising a reservoir (5) that can receive, in particular a shroud tube or an immersion tube, said reservoir comprising a base (6) and a cover (7). The wall (8) of the reservoir (5) is formed by at least one porous burner.

Abstract: A device for measuring temperature and analyzing melt in metallurgical vessels with a channel pipe KN arranged on a side wall of a vessel KV, extending with a lower end thereof into this wall, and ending with an upper open end thereof above the vessel KV for taking a melt probe, which has, above an opening, an air inlet with an associated inlet/outlet valve VT and above it, a rotary valve DS that opens a cross-section of the channel pipe KN for introducing measuring probes, laser, or temperature feeler, and closes it.

Abstract: The invention relates to a method for close-to-final-dimension casting of billets made of metal, particularly rectangular billets, wherein molten metal (2) is cast onto a circulating transport belt (3), followed by in-line rolling and cooling of said transport belt (3). The invention also relates to a device for carrying out the inventive method.

Abstract: A method for producing hot-rolled strip and plates in a production plant having a continuous casting installation for slabs 100-180 mm thick, descaling sprays, a single- or multiple-stand rolling unit with or without edging, a cooling interval, a heating furnace, and a Steckel mill. Between the continuous casting installation and the heating furnace, only the skin layer of the previously descaled slab is deformed in-line, recrystallized during and after deformation, and then cooled in several stages to a temperature below the Ar3 transformation point and temporarily maintained there until the microstructural transformation of the recrystallized, fine-grained austenite to ferrite/pearlite has been completed.

Abstract: A process and a steelmaking device for the metallurgical treatment of iron metals, especially for producing steel melts. To carry out metallurgical processing of iron metals, and especially to produce steel melts, in an energy-saving, environmentally friendly and economical fashion, all metallurgical processes are carried out in a single vessel. This vessel first functions as a converter and then, without the melt product being poured out, functions subsequently as an electric arc furnace.