In a device for fastening a perforated block to a metal melt container, the perforated block can be fastened by at least one clamping wedge which can be inserted transversely with respect to its through opening and which has a clamping jaw coupled thereto, wherein this clamping jaw acts on a clamping surface formed on the circumferential surface of the perforated block. The respective clamping wedge is guided in a carrier plate so as to be displaceable in its longitudinal extent or extension and transversely with respect thereto, while the clamping jaw coupled thereto can be moved in this transverse direction. Consequently, the perforated block can be fastened with precise positioning in the carrier plate in a simple manner.
B22D 41/34 - Leurs moyens de support, de fixation ou de centrage
B22D 41/08 - Récipients de maintien d'un bain de fusion, p. ex. poches, paniers de coulée, bassins de coulée ou systèmes analogues pour coulée par le fond
B22D 41/56 - Moyens de support, de manipulation ou de changement des buses de coulée
In a closure plate for a slide closure on the spout of a container containing molten metal, two outer longitudinal sides, a flow-through opening disposed on a central longitudinal axis of the closure plate and a closing surface passing from the latter are provided. There are formed on each of these two outer longitudinal sides, at least two shoulder surfaces serving as clamping surfaces or as centring surfaces of the closure plate which are at an angle to the longitudinal axis and tapering inward. At least on the shoulder surfaces on the side of the closing surface, adjoining outer sides are provided which are respectively at a smaller angle to the longitudinal axis than those of the shoulder surfaces.
The pouring spout changer according to the invention is characterized in that it is provided with a dummy plate (14) for closing the casting channel of the casting device in an emergency. The dummy plate (14) can be brought into the closed position by the same actuation member (11) by means of which a worn pouring spout (21) is replaced by a new pouring spout (22) during normal operation. The changing device can also be used as a casting nozzle changer, preferably with a nozzle gripper for removing the worn casting nozzles.
In a closure plate for a slide closure on the spout of a container containing molten metal, two outer longitudinal sides, a flow-through opening disposed on a central longitudinal axis of the closure plate and a closing surface passing from the latter are provided. There are formed on each of these two outer longitudinal sides, at least two shoulder surfaces serving as clamping surfaces or as centring surfaces of the closure plate which are at an angle to the longitudinal axis and tapering inward. At least on the shoulder surfaces on the side of the closing surface, adjoining outer sides are provided which are respectively at a smaller angle to the longitudinal axis than those of the shoulder surfaces.
Monitoring device for sliding closures, casting tube changers or the like on a foundry ladle or a similar metallurgical vessel, wherein the device has an electronics system for detecting parameters of the monitored device that are functionally important during casting. In order to ensure trouble-free functioning of the electronics system, the system is housed in a unit fastened to the foundry ladle. The unit has thermal insulation and is provided with an air cooling system which is operated with purified cooling air and can be electrically driven both by an energy source supplied by the waste heat of the foundry ladle and by an external energy source.
B22D 45/00 - Équipements pour la coulée, non prévus ailleurs
B22D 41/22 - Fermetures du type à tiroir, c.-à-d. comportant une plaque fixe et une plaque mobile en contact mutuel et dont le glissement permet de faire varier la section de passage
In a device for fastening a perforated block (1) to a metal melt container, the perforated block (1) can be fastened by means of at least one clamping wedge (36) which can be inserted transversely with respect to its through opening (D) and which has a clamping jaw (35) coupled thereto, wherein this clamping jaw (35) acts on a clamping surface (13) formed on the circumferential surface of the perforated block (1). The respective clamping wedge (36) is guided in a carrier plate (33) so as to be displaceable in its longitudinal extent and transversely with respect thereto, while the clamping jaw (35) coupled thereto can be moved in this transverse direction. Consequently, the perforated block can be fastened with precise positioning in the carrier plate (33) in a simple manner.
B22D 41/08 - Récipients de maintien d'un bain de fusion, p. ex. poches, paniers de coulée, bassins de coulée ou systèmes analogues pour coulée par le fond
B22D 41/34 - Leurs moyens de support, de fixation ou de centrage
In a device for fastening a perforated block (1) to a metal melt container, the perforated block (1) can be fastened by means of at least one clamping wedge (36) which can be inserted transversely with respect to its through opening (D) and which has a clamping jaw (35) coupled thereto, wherein this clamping jaw (35) acts on a clamping surface (13) formed on the circumferential surface of the perforated block (1). The respective clamping wedge (36) is guided in a carrier plate (33) so as to be displaceable in its longitudinal extent and transversely with respect thereto, while the clamping jaw (35) coupled thereto can be moved in this transverse direction. Consequently, the perforated block can be fastened with precise positioning in the carrier plate (33) in a simple manner.
B22D 41/08 - Récipients de maintien d'un bain de fusion, p. ex. poches, paniers de coulée, bassins de coulée ou systèmes analogues pour coulée par le fond
B22D 41/34 - Leurs moyens de support, de fixation ou de centrage
a) is arranged in each case, each additional inner part enclosing the spout sleeve (8) or the inlet sleeve (4). Thus, thermal stresses in the slide unit or in the housing can be reduced and the risk of cracks forming can be significantly reduced.
B22D 41/22 - Fermetures du type à tiroir, c.-à-d. comportant une plaque fixe et une plaque mobile en contact mutuel et dont le glissement permet de faire varier la section de passage
B22D 41/24 - Fermetures du type à tiroir, c.-à-d. comportant une plaque fixe et une plaque mobile en contact mutuel et dont le glissement permet de faire varier la section de passage caractérisées par une plaque se déplaçant de façon rectiligne
B22D 41/34 - Leurs moyens de support, de fixation ou de centrage
9.
CLOSURE PLATE, AND A SLIDING CLOSURE ON THE SPOUT OF A CONTAINER CONTAINING MOLTEN METAL
The invention relates to a closure plate for a sliding closure on the spout of a container containing molten metal. Two outer longitudinal faces, a flow opening (21) arranged on a central longitudinal axis (A) of the closure plate (20), and a closing surface (S) extending from said opening are provided. At least two shoulder surfaces (20a, 20b) which are used as clamping surfaces or as centering surfaces of the closure plate (20) are formed on each of the two outer longitudinal faces. The shoulder surfaces have an angle (a, ß) with respect to the longitudinal axis (A), said angle forming a tapered section of the plate. Outer faces (20c; 30c) that adjoin the closing surface (S) side are provided at least next to the shoulder surfaces (20a), each said outer face having a smaller angle (?) with respect to the longitudinal axis (A) than the angle of the shoulder surfaces (20a).
The invention relates to a closure plate for a sliding closure on the spout of a container containing molten metal. Two outer longitudinal faces, a flow opening (21) arranged on a central longitudinal axis (A) of the closure plate (20), and a closing surface (S) extending from said opening are provided. At least two shoulder surfaces (20a, 20b) which are used as clamping surfaces or as centering surfaces of the closure plate (20) are formed on each of the two outer longitudinal faces. The shoulder surfaces have an angle (α, ß) with respect to the longitudinal axis (A), said angle forming a tapered section of the plate. Outer faces (20c; 30c) that adjoin the closing surface (S) side are provided at least next to the shoulder surfaces (20a), each said outer face having a smaller angle (γ) with respect to the longitudinal axis (A) than the angle of the shoulder surfaces (20a).
The pouring spout changer according to the invention is characterised in that it is provided with a dummy plate (14) for closing the casting channel of the casting device in an emergency. The dummy plate (14) can be brought into the closed position by the same actuation member (11) by means of which a worn pouring spout (21) is replaced by a new pouring spout (22) during normal operation. The changing device can also be used as a casting nozzle changer, preferably with a nozzle gripper for removing the worn casting nozzles.
B22D 41/24 - Fermetures du type à tiroir, c.-à-d. comportant une plaque fixe et une plaque mobile en contact mutuel et dont le glissement permet de faire varier la section de passage caractérisées par une plaque se déplaçant de façon rectiligne
B22D 41/56 - Moyens de support, de manipulation ou de changement des buses de coulée
The pouring spout changer according to the invention is characterised in that it is provided with a dummy plate (14) for closing the casting channel of the casting device in an emergency. The dummy plate (14) can be brought into the closed position by the same actuation member (11) by means of which a worn pouring spout (21) is replaced by a new pouring spout (22) during normal operation. The changing device can also be used as a casting nozzle changer, preferably with a nozzle gripper for removing the worn casting nozzles.
B22D 41/24 - Fermetures du type à tiroir, c.-à-d. comportant une plaque fixe et une plaque mobile en contact mutuel et dont le glissement permet de faire varier la section de passage caractérisées par une plaque se déplaçant de façon rectiligne
B22D 41/56 - Moyens de support, de manipulation ou de changement des buses de coulée
Pressing device for a casting pipe at the spout of a metallurgical container, wherein the pressing device is provided with spring-loaded pressing elements that can be pressed against guide surfaces of a casting pipe. The casting pipe includes a tubular part and an upper plate. The guide surfaces are arranged on the underside of the plate on both sides of the tubular part and are directed downward at an angle. They form a plate cross-section that is tapered downward. The pressing elements are each provided with a head that is convexly curved in the adjustment direction of the casting pipe and can be pressed against a guide surface of the casting pipe, which is curved in the longitudinal direction of the pressing element or in the adjustment direction. Compressive forces exerted by the pressing pins are optimally transmitted, more toward the casting pipe opening and therefore acting more evenly.
A copper anode furnace includes a furnace drum which can be pivoted about a horizontal axis and in which copper melt is refined into anode copper by fire refining. The furnace drum is provided with a spout for pouring out the refined copper. A sliding closure is arranged on the spout of the furnace drum. The sliding closure includes at least one stationary, fireproof closing plate and a fireproof sliding plate which can be displaced relative to the closing plate. Through the displacement of the sliding plate, the outflow out the furnace drum can be regulated or closed and therefore the outflow amount of the copper can be controlled. A drawing of slag into the casting, which reduces the anode quality, can be prevented using the sliding closure.
The invention relates to a casting tube mounting comprising a centering device for the casting tube, said device being composed of a toothed centering crown (8) and a centering ring (6) having radial pins (7). When the casting tube (3) is pressed on, the radial pins (7) can engage in the tooth gaps (19) of the entering crown (8) and thus effect immovably precise centring and alignment of the casting tube.
The invention relates to a monitoring device for sliding closures, casting tube changers or the like on a foundry ladle or a similar metallurgical vessel, wherein the device has an electronics system (4) for detecting the parameters of the monitored device that are functionally important during casting. In order to ensure trouble-free functioning of the electronics system (4), according to the invention said system is housed in a unit (3) fastened to the foundry ladle. Said unit has thermal insulation (8) and is provided with an air cooling system (10) which is operated with purified cooling air and can be electrically driven both by an energy source (15) supplied by the waste heat of the foundry ladle and by an external energy source (16).
B22D 41/22 - Fermetures du type à tiroir, c.-à-d. comportant une plaque fixe et une plaque mobile en contact mutuel et dont le glissement permet de faire varier la section de passage
The invention relates to a sliding closure (1) for a metallurgical container, comprising two fireproof closing plates (3; 5), of which one is arranged in a slide unit (6) and is used to open and close a spout opening (10). The other closing plate (3) is arranged in a metal housing (2) that can be fastened to the container. Said stationary housing (2) and the slide unit (6) also accommodate an upper fireproof inlet sleeve (4) on the container side and a lower fireproof spout sleeve (8). In the housing (2) and in the slide unit (6), at least one additional inner part (2a, 2a', 7a) is arranged in each case, each additional inner part enclosing the spout sleeve (8) or the inlet sleeve (4). Thus, thermal stresses in the slide unit or in the housing can be reduced and the risk of cracks forming can be significantly reduced.
B22D 41/24 - Fermetures du type à tiroir, c.-à-d. comportant une plaque fixe et une plaque mobile en contact mutuel et dont le glissement permet de faire varier la section de passage caractérisées par une plaque se déplaçant de façon rectiligne
B22D 41/34 - Leurs moyens de support, de fixation ou de centrage
18.
FIREPROOF UNIT FOR A SLIDING CLOSURE AT THE SPOUT OF A CONTAINER FOR METAL MELT
The invention relates to a fireproof unit for a sliding closure at the spout of a container containing metal melt, comprising a fireproof adapter block (21) that can be placed on the container spout, a fireproof bottom plate (10) connected thereto, to which bottom plate a slidable fireproof sliding plate (18) can be connected, wherein the sliding plate allows the sliding closure (1) to be opened or closed. In addition to the first bottom plate (10) connected to the adapter block (21), a second bottom plate (12) adjoins the adapter block. The second bottom plate can be slid in under the adapter block to replace the first bottom plate. The adapter block (21) has such a length in the direction of the second bottom plate (12) that the adapter block is in sliding contact with said second bottom plate (12) at the lower sliding surface (21') of the adapter block.
B22D 41/24 - Fermetures du type à tiroir, c.-à-d. comportant une plaque fixe et une plaque mobile en contact mutuel et dont le glissement permet de faire varier la section de passage caractérisées par une plaque se déplaçant de façon rectiligne
19.
PRESSING DEVICE FOR A CASTING PIPE AT THE SPOUT OF A METALLURGICAL CONTAINER
REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG (Autriche)
Inventeur(s)
Cousin, Jean-Daniel
Keller, Werner
Steiner, Benno
Abrégé
The invention relates to a pressing device for a casting pipe at the spout of a metallurgical container, wherein the pressing device is provided with spring-loaded pressing elements (2) that can be pressed against guide surfaces (10) of a casting pipe (1). The casting pipe (1) comprises a tubular part (4) and an upper plate (5). The guide surfaces (10) are arranged on the underside of the plate (5) on both sides of the tubular part (4) and are directed downward at an angle. They form a plate cross-section that is tapered downward. The pressing elements (2) are each provided with a head (2a) that is convexly curved in the adjustment direction (A) of the casting pipe (1) and can be pressed against a guide surface (10) of the casting pipe (1), which is curved in the longitudinal direction of the pressing element or in the adjustment direction (A). Thus, the compressive forces exerted by the pressing pins are optimally transmitted, more toward the casting pipe opening and therefore acting more evenly.
A container for molten metal has at least one opening (4; 24) in which a refractory nozzle brick (5; 5'; 25; 25') is mounted. A refractory purge plug (10; 10') or a refractory sleeve (30; 30') defining an outlet opening (31; 31') is inserted in the nozzle brick opening (6; 6'; 26; 26'). A defined gap is formed between the nozzle brick opening (6; 6'; 26; 26') and the purge plug (10; 10') or the sleeve (30; 30') and is filled with a refractory mass, said mass consisting of a material which can be easily bored or milled out of the mass for the purpose of replacing the purge plug (10; 10') or the sleeve (30; 30'). In this manner, laborious cleaning steps can be avoided and the nozzle brick no longer risks being damaged.
B22D 41/08 - Récipients de maintien d'un bain de fusion, p. ex. poches, paniers de coulée, bassins de coulée ou systèmes analogues pour coulée par le fond
The invention relates to a sliding closure for metallurgical vessels, wherein at least two fireproof closure plates (10, 11) can be clamped against each other. One closure plate (11) is disposed in a slider unit (9) and serves for opening and closing a discharge opening (5). A fireproof discharge shell (16) is also pressed onto the closure plate (11) by a clamping organ (17), wherein mortar is preferably applied between said parts as a seal. The discharge shell (16) comprises a recess (12, 21’) extending from the discharge opening (5) for receiving sealing material and a protruding ring-shaped circumferential flange (20; 20’). By said means, the sealing material remains in the recess, so that faultless sealing without leaks is ensured between the discharge shell and the closure plate.
A copper anode furnace comprises a furnace drum (2), which can be pivoted about a horizontal axis and in which copper melt is refined into anode copper by means of fire refining. Said furnace drum (2) is provided with a spout (10) for pouring out the refined copper. A sliding closure (20) is arranged on the spout (10) of the furnace drum (2). Said sliding closure comprises at least one stationary, fireproof closing plate (21) and a fireproof sliding plate (22) which can be displaced relative to said closing plate. Through the displacement of the sliding plate (22), the outflow out the furnace drum (2) can be regulated or closed and therefore the outflow amount of the copper can be controlled. A drawing of slag into the casting, which reduces the anode quality, can be prevented using said sliding closure (20).
B22D 41/22 - Fermetures du type à tiroir, c.-à-d. comportant une plaque fixe et une plaque mobile en contact mutuel et dont le glissement permet de faire varier la section de passage
C22B 9/00 - Procédés généraux d'affinage ou de refusion des métauxAppareils pour la refusion des métaux sous laitier électroconducteur ou à l'arc
F27B 7/10 - Fours à tambours rotatifs, c.-à-d. horizontaux ou légèrement inclinés chauffés intérieurement, p. ex. au moyen de passages dans la paroi
F27B 7/20 - Parties constitutives, accessoires ou équipement spécialement adaptés aux fours à tambours rotatifs
F27B 7/33 - Aménagement des dispositifs de déchargement
23.
COPPER ANODE FURNACE AND A METHOD FOR OPERATING THE SAME
A copper anode furnace comprises a furnace drum (2), which can be pivoted about a horizontal axis and in which copper melt is refined into anode copper by means of fire refining. Said furnace drum (2) is provided with a spout (10) for pouring out the refined copper. A sliding closure (20) is arranged on the spout (10) of the furnace drum (2). Said sliding closure comprises at least one stationary, fireproof closing plate (21) and a fireproof sliding plate (22) which can be displaced relative to said closing plate. Through the displacement of the sliding plate (22), the outflow out the furnace drum (2) can be regulated or closed and therefore the outflow amount of the copper can be controlled. A drawing of slag into the casting, which reduces the anode quality, can be prevented using said sliding closure (20).
C22B 9/00 - Procédés généraux d'affinage ou de refusion des métauxAppareils pour la refusion des métaux sous laitier électroconducteur ou à l'arc
F27B 7/10 - Fours à tambours rotatifs, c.-à-d. horizontaux ou légèrement inclinés chauffés intérieurement, p. ex. au moyen de passages dans la paroi
F27B 7/20 - Parties constitutives, accessoires ou équipement spécialement adaptés aux fours à tambours rotatifs
F27B 7/33 - Aménagement des dispositifs de déchargement
B22D 41/22 - Fermetures du type à tiroir, c.-à-d. comportant une plaque fixe et une plaque mobile en contact mutuel et dont le glissement permet de faire varier la section de passage
24.
SLIDING CLOSURE FOR A RECEPTACLE CONTAINING MOLTEN METAL
The invention relates to a sliding closure (1) for a receptacle containing molten metal, comprising a housing frame (3) that can be fastened to a spout of the receptacle, a refractory base plate (5) and a sliding unit (7) having a refractory sliding plate (8) that can be sealingly pressed against the base plate by means of spring elements (11) and a contiguous refractory spout sleeve (9) being contained in said housing frame. The case (4) has a second base plate (6) juxtaposed to the base plate (5) and can be displaced inside the housing frame (3) at a right angle to the direction of movement of the sliding unit (7) from an initial position in which the base plate (5) is in an operating position towards a final position in which the second base plate (6) is in the operating position. It is therefore possible to replace the base plate, which especially in converters wears outs very quickly, by a new base plate in a rapid and convenient manner without interrupting the casting operation.
B22D 41/24 - Fermetures du type à tiroir, c.-à-d. comportant une plaque fixe et une plaque mobile en contact mutuel et dont le glissement permet de faire varier la section de passage caractérisées par une plaque se déplaçant de façon rectiligne
25.
CLOSING PLATE AND SLIDING CLOSURE ON THE SPOUT OF A RECEPTACLE FOR MOLTEN METAL
A closing plate for a sliding closure on the spout of a receptacle for molten metal, especially of a converter, comprises an elongate refractory plate (11) and a sheet metal jacket (12) surrounding the same. The refractory plate (11) has a sliding surface (14, 16) which can be braced with a sliding surface of a refractory closure plate interacting therewith or with a sliding surface (21') of a refractory head part (21). The refractory plate (11) has a tapering section (26, 28, 29) which forms an angle (α) with the sliding surface (14, 15) on at least one side delimiting the sliding surface (14, 15), said tapering section being associated with a section of the refractory plate (11) that projects beyond the sheet metal jacket (12). The closing plate according to the invention allows the risk of damage to the front faces of the refractory parts to be braced with each other to be substantially reduced during bracing of the parts with each other and/or during a relative adjustment of the refractory parts that are braced with each other.
B22D 41/24 - Fermetures du type à tiroir, c.-à-d. comportant une plaque fixe et une plaque mobile en contact mutuel et dont le glissement permet de faire varier la section de passage caractérisées par une plaque se déplaçant de façon rectiligne
The invention relates to a sliding closure for a vessel containing molten metal, having a slider unit (11) guided in a slider housing (10), said slider unit having a push rod (14) that can be connected to the drive rod (16) of a linear drive (17) via a coupling (15), wherein a mounting element (18) for the linear drive is provided on the slider housing (10), said element receiving the push rod (14) and the drive rod (16) on the coupling side. The mounting element (18) is equipped with an automatically operating locking device (21) for the linear drive (17) and/or an automatically operating locking device (28) for the push rod (14). The slide closure according to the invention operates reliably in said manner, both during the casting process and during transport thereof between the various stations of the plant.
In a casting method, or a casting system for aluminum, or aluminum alloys, aluminum melt is filled into a plurality of pans (15, 15'). Said pans (15, 15 ') are used for treatment, if needed, and delivered to a casting station (20), in which they are subsequently emptied, and the melt is casted into semi-finished products. At least two filled pans (15, 15') are provided in order to ensure a continuous casting operation in the casting station (20), the melt of at least one of which is drained into a mutual inflow channel (27).
A sliding closure for a metallurgical vessel comprises an elongated refractory slide plate (2), which is exchangeably arranged in a metal frame (1) and the longitudinal direction (L) of which corresponds to the direction of displacement of the sliding closure. Also provided are means (3) for bracing the slide plate (2) in the metal frame (1), which comprise a wedge shoe (10) that is loaded by a spring (9) and can be adjusted transversely in relation to the direction of displacement of the sliding closure. This wedge shoe (10) is operatively connected to a counterpart (11), which can be brought into connection with the slide plate (2) and acts on the slide plate (2) in its longitudinal direction (L). The oscillating movements of the movable slide plate taking place during operation are absorbed and the bracing device ensures satisfactory bracing of this slide plate at any time.
A device for a container for molten metal, particularly nonferrous molten metal, is equipped with at least one locking unit for closing and opening a pouring canal (4), wherein the locking unit can be mounted on at least one outlet (2) of the container (1). A protective cap (10) is provided, which covers the outlet (2) in an enclosing manner and which can be attached to the container (1). The protective cap (10) is configured in the shape of a lid and encompasses both the outlet (2) and the locking unit closing this outlet. In this manner, such a container can be safely transported, even on an ordinary road.
B22D 41/08 - Récipients de maintien d'un bain de fusion, p. ex. poches, paniers de coulée, bassins de coulée ou systèmes analogues pour coulée par le fond
B22D 41/22 - Fermetures du type à tiroir, c.-à-d. comportant une plaque fixe et une plaque mobile en contact mutuel et dont le glissement permet de faire varier la section de passage
30.
ARRANGEMENT FOR THE MAINTENANCE OF A SLIDING CLOSURE MOUNTED ON THE SPOUT OF A CONTAINER FOR MOLTEN METAL
The invention relates to an arrangement for the maintenance of a sliding closure (20) mounted on the spout of a container (10) for molten metal. Said arrangement comprises at least one tool magazine (65, 66), having at least one replacement part magazine (67) and means (30) for opening and closing the sliding closure (20). As a novelty, a robot (60) comprising an automatic grip changing system (61) and operationally connected to a control unit (75) is provided, the robot being able to automatically detect the exact position of the container (10) or of the sliding closure (20). Thereafter, it can actuate the means (30) for opening and closing the sliding closure (20) and, depending on the condition of the individual components to be replaced, it can grip tools or replacement parts from the magazines (65, 66, 67) surrounding the robot and can perform cleaning operations, dismantle components and replace or reinstall the same. In this way, personnel can be saved and the occupational safety is thus increased.
B22D 41/22 - Fermetures du type à tiroir, c.-à-d. comportant une plaque fixe et une plaque mobile en contact mutuel et dont le glissement permet de faire varier la section de passage
B22D 41/34 - Leurs moyens de support, de fixation ou de centrage
A casting installation, in particular for aluminium or aluminium alloys, comprises a number of ladles (2) which can be filled with molten metal. These ladles (2) are filled and transported from a filling station to at least one handling station (1a). The handling station (1a) comprises a container (5) which is open at the bottom, can be partially submerged in the ladle (2) filled with the molten metal (3), or is connected, and in which negative pressure or a vacuum can be produced after submersion. The molten metal getting into the lower part (5a) of the container (5) can be set in an agitating motion from the ladle (2) into the container (5) and back again by blowing in an inert gas. This increases the yield of alloying additions and considerably reduces the metal oxidation or the formation of oxides.
Disclosed is a sliding closure for metallurgical vessels, comprising at least two fireproof closing parts that can be braced against each other by means of spring elements (5). At least one measuring apparatus (10) is provided for measuring the distance of the housing parts or the closing parts from each other regarding the displacement thereof transversal to the sliding areas while at least one temperature gauge is provided which is connected to an evaluation unit (20). The apparatus (10) for measuring the position of the closing parts encompasses exploring coils (12, 13) that are mounted next to each other and a core (15) located in a central opening (11a) in said coils, each of which is arranged in one of the two housing parts and which jointly form a differential throttle. The core (15) can be adjusted perpendicular to the sliding areas when the distance between the two housing parts changes, whereby a tension can be generated which can be transmitted to the evaluation unit (20). Said measurement makes it possible to improve the operational safety of such a sliding closure.
B22D 41/22 - Fermetures du type à tiroir, c.-à-d. comportant une plaque fixe et une plaque mobile en contact mutuel et dont le glissement permet de faire varier la section de passage
B22D 41/40 - Moyens pour appliquer les plaques les unes contre les autres
G01D 5/20 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension en faisant varier l'inductance, p. ex. une armature mobile
G01B 7/02 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour mesurer la longueur, la largeur ou l'épaisseur
09 - Appareils et instruments scientifiques et électriques
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
19 - Matériaux de construction non métalliques
Produits et services
(1) Slide gate valves of linear and rotary type for controlling the flow of molten materials, parts and fittings for said valves; actuators, control equipment and auxiliary equipment for slide gate valves; refractory parts for slide gate valves namely, well blocks, stationary closure plates, moveable closure plates, ladle nozzles, collector nozzles, pouring tubes, plate inserts, nozzle inserts; refractory materials for slide gate valves namely, mortars, cements, ramming material and granular filler material.
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
19 - Matériaux de construction non métalliques
06 - Métaux communs et minerais; objets en métal
Produits et services
[ REFRACTORY FIREPROOF AND NONFIREPROOF MATERIAL FOR SLIDING GATE CLOSURES FOR CASTING LADLES ] SLIDING GATE CLOSURES FOR CASTING LADLES USED IN THE STEEL INDUSTRY, AND MECHANICAL AND HYDRAULIC COMPONENTS-NAMELY, LADLE NOZZLES, BOTTOM PLATES, SLIDING PLATES, AND COLLECTOR NOZZLES
Collector nozzles and component parts made of refractory and
non-refractory materials. Collector nozzles and component parts made of refractory and
non-refractory materials.
