Abstract: A roller stand (1) that has a roller stand frame (3) in which working rollers (4, 5), or working rollers (4, 5) and support rollers (8, 9), or working rollers (4, 5), intermediate rollers (10, 11), and support rollers (8, 9) are mounted. Each roller (4, 5, 8, 9, 10, 11) can be rotated about a respective rotational axis (6, 7). In a roller stand (1) without intermediate rollers (10, 11), the working rollers (4, 5) can be moved relative to one another in the direction of the respective rotational axis (6, 7), i.e. axially. In a roller stand (1) with intermediate rollers (10, 11), the same applies to the working rollers (4, 5) or the intermediate rollers (10, 11). Each of the axially movable rollers (4, 5 or 10, 11) has an effective barrel length (L) and a curved contour (R1, R2) which extends over the entire effective barrel length (L).

Abstract: During stabilization of a metal band (1) on a roller path (2), the band (1) is to be only minimally cooled via the stabilisation. A device for that includes multiple protective runners (3), each oriented in the conveyor direction (R), for guiding the band (1), wherein the protective runners (3) are arranged above the roller path (2) and the protective runners (3) are at a distance from one another in a width direction (B) of the band (1). Multiple rows (4) of nozzles are arranged in the conveyor direction (R) or in the width direction (B) of the band. Each row (4) of nozzles includes multiple nozzles (5). The nozzles (5) are set back in relation to an underside of the protective runners (3), such that an arched band (1) cannot come into contact with the nozzles (5).

Abstract: A method for detecting a leakage in the area of at least one cooling device of a furnace, wherein, in the event of a leakage, liquid coolant gets into a furnace chamber of the furnace from the at least one cooling device, and wherein a stream of exhaust gas is continuously removed from the furnace chamber over a period of time Z. The steps include dividing off a representative partial stream from the stream of exhaust gas during the period of time Z; condensing vaporous constituents contained in the partial stream; determining a stream of condensate obtained; comparing the stream of condensate obtained with a condensate-stream limit value; and indicating a leakage if the stream of condensate exceeds the condensate-stream limit value. Also a device for carrying out the method and a furnace with such a device are disclosed.

Abstract: A cooler (1) for cooling hot bulk goods (17) preferably iron ore sinter: The cooler has a grate surface (16) for holding the hot bulk goods (17) to be treated to reduce the dust emissions and at the same time to also enable maintenance measures on the cooler (1). Covers are located in the region of the feed point (2) and the removal point (3). The device herein provides an additional boundary, which prevents the removal of dust particles of size over 150 ?m. The boundary is a stationary first wall (12) and a stationary second wall (11) and the boundary extends over a partial segment, and preferably over the entire region, of the uncovered grate surface (16). A supporting structure (18) is provided, to which the first wall (11) and the second wall (12) are fastened.

Abstract: Provided is a method for manufacturing reduced iron which includes the steps of: i) drying ores in an ore drier; ii) supplying the dried ores to at least one reduction reactor; iii) reducing the ores in the at least one reduction reactor and manufacturing reduced iron; iv) discharging exhaust gas by which the ores are reduced in the reduction reactor; v) branching the exhaust gas and providing the branched exhaust gas as ore feeding gas; and vi) exchanging heat between the exhaust gas and the ore feeding gas and transferring the sensible heat of the exhaust gas to the ore feeding gas. In the supplying the dried ores to the at least one reduction reactor, the dried ores are supplied to the at least one reduction reactor by using the ore feeding gas.

Abstract: A burner-lance unit (1) includes at least two gas connections (2a, 2b, 2c), a burner tube (3), and a lance tube (4) that is placed concentrically in the burner tube (3). The burner tube (3) and the lance tube (4) both have a gas inlet end and a gas outlet end (15). The lance tube (4) has a de Laval nozzle (4a) at the gas outlet end thereof. The de Laval nozzle (4a) is releasably connected to the lance tube (4). The burner tube (3) has a burner nozzle (3a) which is releasably connected to the burner tube (3).

Abstract: A method and a system for configuring a strand guiding system (8, 8a, 8b) of a continuous casting machine (2) and such a strand guiding system (8, 8a, 8b). A strand guiding segment (10g-r) guides a metal strand in the strand guiding system (8, 8a, 8b). The strand guiding system (8, 8a, 8b) has a plurality of strand guiding segments (10g-r) and respective control units (22g-r), wherein each control unit (22g-r) identifies its strand guiding segment (10g-r), and each control unit (22g-r) automatically depends on the strand guiding segments (10g-r) identified by the control unit (22g-r). The strand guiding system (8, 8a, 8b) and the strand guiding segment (10g-r) are prepared for the performance of the method herein disclosed.

Abstract: A method of forming tailored cast blanks including determining at least one of a thickness pattern or profile pattern for a blank, generating a layout for a series of blanks having the determined thickness or profile pattern and casting a strip in accordance with the layout, including varying the caster width during casting of the strip.

Abstract: A spray device lubricates and cools a strip and/or an air gap of a roller stand having multiple rollers. The spray device has a fixed spray table with an elongated shape and configured to be rigidly connected to a plurality of mounting plates in a row of bearing rollers of the roller stand. The fixed spray table includes a network for dispensing a fluid for lubricating and cooling via a plurality of nozzles, a connector for connecting the fluid-dispensing network to a network for supplying the fluid, and an attachment device for rigidly connecting the table to the mounting plates. In addition, a method for removing/inserting the spray device from/into the roller stand is described.

Abstract: A metallurgical container (1) includes an outer wall (2), at least one connection element (4) for an electrode which is to be connected and/or a support element which is to be connected, and at least one transponder (3) which is surrounded by a protective housing (6) and can be read wirelessly. The transponder (3) is at a distance from the outer wall (2) on the container (1).

Abstract: An adjustable descaling device for a rolling mill (20) for rolling a metal product (10) on a rolling line comprises one or more descalers (13a, 13b, 14a, 14b), at least one scale detection sensor (17, 18); and a processor (19). The sensor detects a scale pattern on a surface of the metal product (10) after descaling of the product. The processor adjusts the descaling impact pattern according to the detected scale pattern provided by the sensor.

Abstract: Mill rolls capable of rolling long kilometers used for ESP production line and a method for rolling long kilometers using the mill rolls. The mill rolls include rolls (3, 4), a bearing box (2) and a roll shifting hydraulic cylinder (1), wherein the middle portion of the surface of the roll sinks inwards, one end of the rolls is frustum-shaped, smaller and smaller outwards, so that the roll surface forms a compensation ramp, and the other end of the rolls is cylindrical. The upper roll (3) and the lower roll (4) have the same roll profile and are positioned in the opposite direction. The mill rolls are characterized by reduced runaway of the rolled product and a longer service life.

Abstract: A device for lateral guidance (1) of a metal strip (2) moving on a metal belt conveying device, including at least one base body module (7) includes an essentially vertical guiding plane (10), at least one wear body (12) having a wear surface (12a) can be rotated into several defined rotational positions in a controlled manner. The wear surface (12a) is substantially planar, and in all of its defined rotational positions, is parallel to the guiding plane (10). Further, a method for lateral guidance of metal strips (2) moving on a metal belt conveying device includes, after a first metal strip has passed through the metal belt conveying device, and prior to a second metal strip entering the metal belt conveying device, the wear body (12) is rotated from a first to a second defined rotational position in a controlled manner, wherein in all defined rotational positions, the wear surface (12a) is parallel to the guiding plane (10).

Abstract: A metallurgical vessel (2) having an outer surface (2a) and an identification tag (1, 1?, 1?) on the outer surface (2a). The tag has a carrier matrix (11) formed of an electrically and thermally insulating material. At least two passive transponders (3, 3a, 3b) are embedded in the carrier matrix (11). Within a metallurgical plant, a reading station (4) for tracking the path of the metallurgical vessel (2) is arranged at a tracking position. An antenna (5) of the reading station (4) initiates activation of the passive transponders (3, 3a, 3b), provided that the metallurgical vessel (2) is in a sensing range of the reading station (4). A reading unit (6) of the reading station (4) reads out the activated passive transponders (3, 3a, 3b) and transmits the result to an evaluating unit (7) of the reading station (4). The evaluating unit (7) determines which and/or how many of the passive transponders (3, 3a, 3b) were actually activated.

Abstract: A method for reducing metal oxide containing charge materials (1): reducing the metal oxide containing charge materials (1) in at least two fluidized bed units (RA,RE) by means of a reduction gas (2), wherein at least some of the resulting off-gas (3) is recycled and wherein the metal oxide containing charge materials (1) are conveyed into the fluidized bed unit RE by a propellant gas. Also, apparatus for carrying out the method according to the invention is disclosed.

Abstract: A rolling mill edger includes a pair of work rolls (1, 2) and a feed roll assembly. The assembly includes one or more driven feed rolls (23) and a drive for the feed rolls. The feed roll assembly is mounted on a moveable (25) mount such that the feed roll assembly is movable by pivoting the assembly between an operative rolling position (54) in the edger and a roll change position (55) out of the edger.

Abstract: A method for semi-continuous casting of a strand of steel in a strand casting machine and a strand casting machine that carries out the method, the method includes pouring liquid steel into a mold while closing off the mold by a bar to form a fully solidified strand start area followed by a partially solidified strand; extracting the partially solidified strand from the mold; supporting and guiding the partially solidified strand in the strand guide; at the end of the casting, ending the pouring of liquid steel into the mold and forming a strand end; extracting the strand end from the mold; ending the extraction of the strand end; ending the secondary cooling; providing controlled or regulated cooling of the partially solidified strand until full solidification of the strand; and discharging the strand from the strand casting machine.

Abstract: A hydraulic valve (3) includes an actuation device (1, la, lb) for a control piston (2). The valve (3) is simple, robust, and insensitive to dirt. The is an actuation device (1, 1a, 1b) has a flexurally rigid metal plate (5), with an outer region fixed to the housing (4) in a stationary manner. A piezoelectric actuator (6) can bend a central region of the metal plate (5); and a pressure chamber (7) is filled with a pressurized liquid during operation. The pressure chamber (7) is delimited by the housing (4), the metal plate (5), and the control piston (2). The metal plate (5) seals the pressure chamber (7), and the pressure chamber (7) acts on the control piston (2). A surface area AP of the metal plate (5) over the pressure chamber (7) is larger than the cross-sectional area AK of the control piston (2).

Abstract: An apparatus (100) and method for the production of elongated metal products such as bars, rods or the like: A rolling mill (10) with at least one rolling stand (5); a casting station (20) with at least a first casting line (2a) and at least a second casting line (2b), each line (2a, 2b) being operable to produce respective elongated intermediate products (b2a, b2b), such as billets; wherein at least the first casting line (2a) is directly aligned with the rolling mill (10), the first casting line (2a) being configured to feed the rolling mill (10) with a fully continuous casting strand or with cast elongated intermediate products; and the second casting line (2b) is not aligned with the rolling mill (10).

Abstract: A method is disclosed for determining the speed of a rolling stock, for example the belt speed of a rolling belt, wherein electromagnetic radiation in the microwave range is transmitted to the rolling stock by at least one transmitting and receiving device and the belt speed is determined on the basis of the reflected and received reflection signal in an evaluation device. A device for carrying out such method is also disclosed.