EP2882875B1 - Procédé pour faire fonctionner un système de lance de soufflage, et système de lance de soufflage lui-même - Google Patents

Procédé pour faire fonctionner un système de lance de soufflage, et système de lance de soufflage lui-même Download PDF

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Publication number
EP2882875B1
EP2882875B1 EP13737534.1A EP13737534A EP2882875B1 EP 2882875 B1 EP2882875 B1 EP 2882875B1 EP 13737534 A EP13737534 A EP 13737534A EP 2882875 B1 EP2882875 B1 EP 2882875B1
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EP
European Patent Office
Prior art keywords
hot blast
lance
closure
bayonet
line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP13737534.1A
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German (de)
English (en)
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EP2882875A1 (fr
Inventor
Christian GÜNTHER
Michael Wahl
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Primetals Technologies Austria GmbH
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Primetals Technologies Austria GmbH
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • C21C5/462—Means for handling, e.g. adjusting, changing, coupling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/22—Arrangements of air or gas supply devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/22—Arrangements of air or gas supply devices
    • F27B3/225—Oxygen blowing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D2001/0079—Means to assemble at least two parts of a furnace or of any device or accessory associated to its use
    • F27D2001/0083—Means to assemble a moving part to a fixed one
    • F27D2001/0086—Means to assemble a moving part to a fixed one the moving part being in rotation

Definitions

  • the invention relates to a method for operating a Tarblaslanzenanordung (H Dominowindlanzenanssen), in which hot blast is blown onto a molten bath and / or a heap in a steelmaking reaction vessel, wherein the hot blast lance is fed via a hot blast line from a hot blast source, and a Troblaslanzenanowski (H employwindlanzanowski) with hot wind source itself, according to the preamble of claims 1 and 9.
  • the supply of oxygen can be done by bottom blowing and / or by inflation.
  • bottom blowing the converter in the bottom area on one or more special floor nozzles, through which the oxygen is supplied.
  • inflation the oxygen is blown onto the steel bath by means of a water-cooled lance.
  • Steelmaking in converters uses both pig iron and scrap as a feedstock.
  • sponge iron in the form of DRI (Direct Reduced Iron) or HBI (Hot Briquetted Iron) can be used.
  • DRI Direct Reduced Iron
  • HBI Hot Briquetted Iron
  • Hot blast is understood to mean a heated oxygen-containing gas.
  • the gas is typically composed of the main components oxygen, nitrogen and argon.
  • the oxygen content is in the range of normal air (21%) and can reach levels of up to 50%, preferably 35%, by enrichment with oxygen.
  • a hot blast but can also be understood a synthesis gas, which is obtained, for example, from the exhaust gases of a combustion reaction of a fuel such as blast furnace gas, coke gas, converter gas, natural gas or a gaseous or liquid hydrocarbon with air.
  • the O 2 content of the synthesis gas can be adjusted by the air ratio of the combustion and, if appropriate, simultaneous enrichment of the combustion air with oxygen and / or the mixing of the combustion exhaust gases with pure oxygen.
  • Components additionally contain CO2 and water as combustion products.
  • the invention is therefore based on the object to further develop the method for operating a Tarblaslanzenan instructive to a Friedman's mannitol, as well as a Friedman's mannitol, as well as a Friedman's mannitol, as well as a Friedman's mannitol, as well as a Friedman's mannitol, as well as a Friedman's mannitol.
  • the core of the inventive method is that the hot blast lance with the hot blast source is releasably connected, such that for each batch. between the batches the connection can be automatically released and closed again.
  • hot blast closure is thus meant an outwardly dense, hot blast passing connection between hot blast lance and hot blast line.
  • the positioning movement of the hot blast lance is now connected to the converter with the lowering movement to the hot blast closure. This happens at the same time, making the process very effective and easy.
  • the Aufblaslanze is movable in height and relative to the stationary hot blast via a lance carriage, and the Aufblaslanze with the hot blast the hot air cap with automatic adjustable Renkver gleichschn connected and the Renkver gleich is automatically locked upon reaching the connecting Renkendposition automatically by means of a plurality of Hydraulikzylinderzylindervorläept.
  • the hot-air shutter is automatically closed and opened.
  • Renkver gleich is, for example, the well-known bayonet lock. There are the steps joining together and then twisting (renken) to secure the connection.
  • Hot air is understood as meaning an oxygen-containing gas heated to 500 ° C. to 1400 ° C., preferably 1200 ° C.
  • the gas is typically composed of the main components oxygen, nitrogen and argon.
  • the oxygen content is in the range of normal air (21%) and can by enrichment with oxygen but levels up to 35% or up to 50%.
  • a hot blast could also be a synthesis gas obtained, for example, from the flue gases of a combustion reaction of a fuel such as blast furnace gas, coke gas, converter gas or natural gas or other gaseous or liquid hydrocarbon with air.
  • the O 2 content of the synthesis gas can be adjusted by the air ratio of the combustion and a possibly simultaneous enrichment of the combustion air with oxygen and / or mixing of the combustion exhaust gases with pure oxygen.
  • hot blast generated as described above has carbon dioxide and water as products of combustion.
  • the H discloses a RenkverInstitutelement and is lowered onto the complementary counter element of the RenkENS on the hot blast line, and that upon reaching the end position, the two complementary Renktagensetti are automatically rotated relative to each other, until reaching the Renkendposition with subsequent locking.
  • a gap formed between the inner and outer sealing region of the hot-air shutter is subjected to blocking air after locking of the Renk connecting elements.
  • nitrogen or a gas containing essentially nitrogen, is used as barrier air.
  • This sealing air chamber results as a circular ring chamber between the bearing surfaces of the flanges of the hot blast closure.
  • This sealing air chamber in the manner of a labyrinth seal will be contained between two concentric grooves, preferably trapezoidal grooves, in one of the two opposite flanges in the hot blast closure. In this a sealing cord can be inserted. In the "twisted" secured end position of the two complementary closure elements, each containing a flange, these sealing cords are then sealingly.
  • the hot blast closure before and after connection with the Aufblaslanze (hot blast lance) is covered with an automatically openable and closable hood, so that before or after connection to the Aufblaslanze (hot blast lance) no residual heat from the hot blast line exits.
  • the invention supports the use of such a hot blast lance.
  • the operation of the hot blast lance results from the knowledge that when using hot blast a higher and more energetically effective afterburning can be achieved than with the use of pure oxygen. This then leads to more energy being available in the conversion of pig iron to steel in the converter while maintaining the same material balance. With the present invention it is achieved that now a higher proportion of the otherwise lost in the process gas carbon monoxide in the converter afterburning and this released heat is transferred to the molten bath. There is thus a higher energy available for the process.
  • This said additional amount of energy can then be used to allow larger amounts of scrap to be melted.
  • other coolants for the melt is possible.
  • the use of sponge iron can also be increased, or economically sensible ever sponge iron be supplied.
  • the heat balance of the converter is determined from the tapping temperature.
  • a high tapping temperature indicates a low coolant rate and a low tapping temperature indicates a high coolant rate.
  • This autothermal point can be influenced by an afterburning of the process gases in the reaction vessel, for example in the converter, is realized.
  • This afterburning can be operated particularly advantageously by hot blast.
  • Optimum process control therefore depends very much on the optimized gas-coupled coupling of the hot blast source to the hot blast lance.
  • the reliability and reproducible tightness of the hot blast closure according to the invention contributes to the fact that the entire combustion process in the converter can be regulated by supplying the cold air into the hot-wind generator.
  • the hot blast lance is fed via the hot blast line of a stationary Pebble Heater, in which heated, if necessary with Oxygen-enriched hot blast is generated.
  • the hot blast lance is provided with a first coolant circuit
  • the hot blast closure is provided with a second coolant circuit
  • the two coolant circuits are thermally coupled to each other, or are interconnected by coolant, such that hot blast lance and hot blast closure at least are at least approximately the same temperature during operation. In this way, thermal stresses are avoided, and the hot blast operation runs optimally.
  • the gist of the invention is the hot blast lance can be connected to a stationary hot-wire generator or a Pebble Heater via a stationary hot blast line, and that the connection between hot-blast lance and hot-blast line takes place via an automatically detachable hot blast closure provided with flanges.
  • the hot blast lance is connected via a fixed hot blast line with a stationary Pebble Heater, and that the connection between the hot blast lance and hot blast line via an automatically releasable provided with flanges hot blast closure.
  • a Pebble Heater a cowper or a recuperator can be used as a regenerator.
  • the reduction to the end position of the hot blast lance can then be done with the direct Aufsch apart the flange of the hot blast line to the flange of the hot blast lance. This is done by one and the same lowering movement.
  • the flange of the hot blast lance is located on a 180 ° bent pipe socket of the hot blast lance, so that it can unlock at all by lowering the flange of the hot blast line.
  • an exhaust pipe is first connected, for example, before the connection of the lance to the connection element, via which the hot air is led out of the workshop for preheating the feed line. It can also be connected in the region of the connecting element an exhaust pipe, which with a closure device - for example a slide - can be opened or closed.
  • the hot blast connection must then also have another closure element which must be closed when the closure device is open to the exhaust air pipe. In this position, the preheating of the supply line can be done.
  • the closure device hot-air closure
  • the closure element is correspondingly closed to the exhaust pipe and the closure element is opened again. After connecting the lance to the hot-air cap, the hot air can then be introduced via the lance into the converter.
  • Renkver gleich the hot blast closure is automatically locked upon reaching the connecting Renkendposition automatically by means of a plurality of hydraulic working cylinder.
  • the blown-in hot blast amount can be controlled exclusively via adjusting means for the controlled supply of the cold air quantity fed into the Pebble Heater. This is ultimately possible by the hot blast closure according to the invention in a simple and secure manner.
  • the flange of the hot blast line which is the subject of the hot blast closure, additionally provided with a closable and openable hood to heat the hot blast line as such either in the manner described above, or to avoid cooling thereof in the unconnected case ,
  • FIG. 1 shows the most important components for the process implementation of the connection of the hot blast lance to the hot blast line.
  • the hot blast line and the downwardly bent connecting pipe of the hot blast lance are each provided with a flange 5.
  • the flanges 5 are formed complementary in such a way that they interlock, as will be described in more detail below, and form two complementary connecting elements which form the hot blast closure according to the invention.
  • FIG. 1 shows individual components such as hot blast line 6, hot blast lance 3, Pebble Heater 10 and converter in a functional context.
  • the downward movement of the hot blast lance 3 generated by the lancet into the converter closes the two complementary flanges 5 of the hot blast lance 3 and the hot blast line 6 in the desired end position.
  • an iron melt Within the tiltable about the tilt axis 2 converter 1 is an iron melt. Through bottom nozzles or bottom openings in the converter 1, oxygen, nitrogen, argon and natural gas, as well as and carbon (coal) and lime are fed to the molten bath. The respective controlled quantities are determined by a control device 20 and given corresponding control signals to the associated actuator 21, 22 and 23. From above the molten pool, hot wind is over a hot blast lance 3 is blown into the converter 1. The hot blast lance 3 is arranged on a lance carriage 4, which is also controlled by the control device 20.
  • the hot blast lance 3 is connected to the flanges, as well as with Renkver gleich instituten complete with automatic twisting and locking means hot blast closure 5, which can be separated by a lifting movement of the lance carriage 4 together with hot blast lance 3 of the fixed hot blast 6 with open, ie unlocked hot blast closure, or by a Lowering movement with the hot blast line 6 gas-tight can be reconnected.
  • the hot blast closure is an automatically controlled device with which the gas-dynamic coherent, and gas-tight connection of hot blast line and hot blast lance can be made by means of said automatic coupling means.
  • the hot blast line 6 is fed by a so-called Pebble Heater 10, which generates hot blast from cold blast in the Blasphase.
  • the cold wind is generated in a fan 13, and optionally can be additionally enriched with oxygen.
  • the heat balance in the converter, and thus also the heat supplied via the hot blast lance, is advantageously controlled or regulated exclusively via the control of the supply of cold air to the Pebble Heater. This is precisely where the control of the supplied hot blast takes place, and precisely above this the combustion rate and the total allothermal heat contributions in the reaction vessel or in the steel converter are optimally controlled.
  • FIG. 2 shows the upper portion of the hot blast lance 3, and the hot blast closure 5.
  • the hot blast lance of course continues down and is not shown here.
  • the connecting pipe is designed as a 180 ° pipe bend, so that a downward movement of the hot blast lance 3 also closes the flange 5 'of the hot blast lance down onto the complementary flange 5 "of the hot blast line
  • the hot blast line likewise runs downwards and is not shown here any further.
  • the flange 5 'of the hot blast lance 3 has distributed on its outer circumference projecting guide fingers 5''' on. These guide fingers 5 '''engage in the guide chambers 9 of the hot blast closure during lowering.
  • the guide fingers By lowering the hot blast lance 3, the guide fingers then penetrate into the guide chambers 9 and lower further. In the end position then the ring together with the guide chambers 9 is rotated by about 30 °, so that the guide fingers 5 '''are locked.
  • the lower flange 5 has hydraulic adjusting means in the form of working cylinders 7 with which the ring on which the guide chambers 9 are placed can be rotated Hydraulic cylinder 8 is actuated so that they keep the Renktagen thus given positionally secured, and the flanges 5 'and 5 "also press together sealingly .
  • sealing means as shown below.
  • FIG. 3 shows the closed, twisted and secured hot-air lock from the perspective from above.
  • FIG. 4 shows in a side sectional view of the closed hot-air shutter 3. It can be seen that the upper flange, namely the flange 5 'includes integral sealing grooves 14, in which sealing cords can be inserted. There is an inner seal groove and an outer seal groove. The seal is designed in the manner of a labyrinth seal. In between, a barrier air volume is enclosed in closed flanges, which is acted upon in the closed state of the flanges with blocking air.
  • the system is designed so that in case of failure or power failure via an emergency power supply (eg 24 volts) all functions for opening and pivoting of the hot air shutter can be done.
  • the hydraulic cylinders are powered by a hydraulic system with a residual pressure of 200 bar. All hydraulic cylinders are separately monitored by suitable switching elements.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Claims (15)

  1. Procédé pour faire fonctionner un dispositif de lance de soufflage (dispositif de lance à vent chaud), par lequel du vent chaud est soufflé sur le bain de fusion et/ou la charge de minerai dans un convertisseur, et selon lequel la lance à vent chaud est alimentée par une source de vent chaud via une conduite de vent chaud, et la lance à vent chaud est connectée de façon détachable à la source de vent chaud, de telle sorte que, pour chaque coulée, c'est-à-dire entre les coulées, la connexion peut être automatiquement détachée et rétablie,
    caractérisé en ce que
    la lance à vent chaud peut être déplacée en hauteur et par rapport à la conduite à vent chaud fixe par l'intermédiaire d'un chariot à lance, et la lance à vent chaud est connectée à la conduite de vent chaud par un dispositif d'obturation comportant des moyens de fermeture à baïonnette ajustables automatiquement et la fermeture à baïonnette, lorsqu'elle atteint la position finale de baïonnette raccordée, est verrouillée automatiquement au moyen de plusieurs compressions de vérin de travail.
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    dans un convertisseur préparé pour le processus de fusion, la lance à vent chaud est abaissée dans le convertisseur dans une position de travail de telle sorte qu'au cours du mouvement d'abaissement, la lance à vent chaud est simultanément obturée sur un dispositif d'obturation servant à la raccorder à la conduite de vent chaud.
  3. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    pour obtenir une connexion étanche de la lance à vent chaud avec la conduite de vent chaud, le raccord de la lance à vent chaud est pourvu d'une fermeture à baïonnette et est abaissé sur le contre-élément complémentaire de la liaison à baïonnette sur la conduite de vent chaud, et en ce que, lorsqu'ils atteignent la position finale, les deux éléments de liaison à baïonnette complémentaires sont tournés automatiquement l'un par rapport à l'autre, jusqu'à ce qu'ils atteignent la position finale de baïonnette, avec verrouillage consécutif.
  4. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les vérins de travail destinés à verrouiller la liaison à baïonnette peuvent être ouverts également en cas de dysfonctionnement par l'intermédiaire d'un accumulateur de pression.
  5. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce qu'un espacement formé entre un joint étanche intérieur et extérieur du dispositif d'obturation est soufflé avec de l'air de barrage après le verrouillage des éléments de liaison à baïonnette.
  6. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce qu'une pluralité d'éléments de liaison à baïonnette sont répartis sur la configuration annulaire du dispositif d'obturation et en ce que les vérins de travail hydrauliques comprimés pour le verrouillage sont dimensionnés de telle sorte qu'au maximum deux vérins de travail peuvent porter le poids entier de la lance à vent chaud avec le chariot à lance.
  7. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le dispositif d'obturation, avant et après le raccordement avec la lance à vent chaud, est recouvert d'un capot pouvant être ouvert et fermé automatiquement, de telle sorte qu'avant ou après le raccordement à la lance à vent chaud aucune chaleur résiduelle ne sort de la conduite de vent chaud.
  8. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la lance à vent chaud est pourvue d'un premier circuit de refroidissement, et le dispositif d'obturation est doté d'un second circuit de refroidissement, et en ce que les deux circuits de refroidissement sont couplés thermiquement l'un à l'autre ou sont reliés l'un à l'autre an niveau du fluide de refroidissement, de telle sorte que la lance à vent chaud et le dispositif d'obturation sont au moins approximativement à la même température, au moins durant leur fonctionnement.
  9. Dispositif de lance de soufflage comportant un tube de lance réglable en hauteur par rapport au convertisseur (1) par l'intermédiaire d'un chariot à lance (4), par lequel du vent chaud est soufflé sur le bain de fusion et/ou la charge de minerai dans un convertisseur (1), dans lequel la lance à vent chaud (3) est alimentée par une source de vent chaud via une conduite de vent chaud (6), et la lance à vent chaud peut être connectée, via une conduite de vent chaud fixe (6), à un générateur de vent chaud fixe (6) ou un échangeur à galets (10), et en ce que la connexion entre la lance à vent chaud (3) et la conduite de vent chaud (6) s'effectue par un dispositif d'obturation (5) pourvu d'une bride, et pouvant être détaché automatiquement, et en ce que le dispositif d'obturation (5) et une pièce de raccord (3') de la lance à vent chaud sont pourvus chacun d'un élément de bride complémentaire (5', 5"), lequel est pourvu à son tour de moyens de fermeture à baïonnette (7, 8, 9, 5''') automatiquement ajustables, de telle sorte que, lors de l'obturation des brides disposées l'une sur l'autre (5', 5"), les éléments de fermeture à baïonnette forment un raccordement étanche au gaz et bloqué mécaniquement entre la lance à vent chaud (3) et la conduite de vent chaud (6).
  10. Dispositif de lance de soufflage selon la revendication 9,
    caractérisé en ce que
    la fermeture à baïonnette du dispositif d'obturation (5), lorsqu'elle atteint la position finale de baïonnette raccordée, est verrouillable mécaniquement et automatiquement au moyen de plusieurs vérins de travail hydrauliques (8).
  11. Dispositif de lance de soufflage selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les éléments de fermeture à baïonnette peuvent être tournés automatiquement au moyen d'un entraînement hydraulique ou motorisé.
  12. Dispositif de lance de soufflage selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les vérins de travail (8) destinés au verrouillage de la liaison à baïonnette peuvent être ouverts également en cas de dysfonctionnement par l'intermédiaire d'un accumulateur de pression et l'accumulateur de pression est disposé directement au niveau du dispositif d'obturation (5).
  13. Dispositif de lance de soufflage selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les liaisons du fluide sous pression vers les vérins de travail (7, 8) s'effectuent par des tubes au lieu de flexibles, tout autant que la liaison à baïonnette de la fermeture demeure mobile par ledit tubage.
  14. Dispositif de lance de soufflage selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la quantité d'air chaud insufflée est réglable exclusivement par des moyens de réglage (12, 13) d'alimentation régulée de quantité d'air froid admise dans l'échangeur à galets (10).
  15. Dispositif de lance de soufflage selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la bride (5") de la conduite de vent chaud (6), qui est un objet du dispositif d'obturation (5), est pourvue en outre d'un capot pouvant être fermé et ouvert, pour réchauffer la conduite de vent chaud (6) en tant que telle de la manière décrite ci-dessus, ou, dans le cas non raccordé, pour éviter le refroidissement de celle-ci.
EP13737534.1A 2012-08-08 2013-06-20 Procédé pour faire fonctionner un système de lance de soufflage, et système de lance de soufflage lui-même Not-in-force EP2882875B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012016045A DE102012016045B3 (de) 2012-08-08 2012-08-08 Verfahren zum Betrieb einer Aufblaslanzenanordnung, sowie Aufblaslanzenanordnung selbst
PCT/EP2013/001824 WO2014023371A1 (fr) 2012-08-08 2013-06-20 Procédé pour faire fonctionner un système de lance de soufflage, et système de lance de soufflage lui-même

Publications (2)

Publication Number Publication Date
EP2882875A1 EP2882875A1 (fr) 2015-06-17
EP2882875B1 true EP2882875B1 (fr) 2018-01-10

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Application Number Title Priority Date Filing Date
EP13737534.1A Not-in-force EP2882875B1 (fr) 2012-08-08 2013-06-20 Procédé pour faire fonctionner un système de lance de soufflage, et système de lance de soufflage lui-même

Country Status (3)

Country Link
EP (1) EP2882875B1 (fr)
DE (1) DE102012016045B3 (fr)
WO (1) WO2014023371A1 (fr)

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CN112916218A (zh) * 2021-03-30 2021-06-08 国网黑龙江省电力有限公司牡丹江供电公司 一种热风枪枪嘴

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE815433C (de) * 1949-09-03 1951-10-01 Alfons Dipl-Ing Moser Widerstandsgeringe Schlauchkupplung mit Ventil
US4334559A (en) * 1980-06-13 1982-06-15 Deem Larry D Pipe coupling
IN159870B (fr) * 1982-12-21 1987-06-13 Wurth Paul Sa
DE3607777A1 (de) * 1986-03-08 1987-09-17 Kloeckner Cra Tech Verfahren zur stahlherstellung aus schrott
EP0441767B1 (fr) * 1990-02-01 1995-01-11 Voest-Alpine Industrieanlagenbau Gmbh Dispositif d'alimentation des milieux à une lance de soufflage
LU87761A1 (fr) * 1990-07-04 1992-03-11 Wurth Paul Sa Dispositif d'accouplement automatique d'une lance d'insufflation a une tete de raccord
LU88017A1 (de) * 1991-10-14 1993-05-17 Wurth Paul Sa Antrieb fuer automatische lanzenwechselvorrichtungen
DE4240666C2 (de) * 1992-11-24 1996-06-13 Mannesmann Ag Einrichtung zum Halten und Versorgen einer Blaslanze für ein metallurgisches Gefäß
DE4343957C2 (de) 1993-12-22 1997-03-20 Tech Resources Pty Ltd Konverterverfahren zur Produktion von Eisen
AUPR436901A0 (en) * 2001-04-11 2001-05-17 Technological Resources Pty Limited Apparatus for injecting gas into a vessel
EP1920075B1 (fr) 2006-01-04 2011-12-28 Saarstahl AG Procede et prechauffage d'un agglomerat ferreux
DE102007062393A1 (de) * 2007-06-11 2008-12-18 Beda Oxygentechnik Armaturen Gmbh Schnellverschlusskupplung

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EP2882875A1 (fr) 2015-06-17
DE102012016045B3 (de) 2013-10-24

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