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EP0021861A1 - Gasdurchlässiger Körper aus feuerfestem Material und Verfahren zu seiner Herstellung - Google Patents

Gasdurchlässiger Körper aus feuerfestem Material und Verfahren zu seiner Herstellung Download PDF

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Publication number
EP0021861A1
EP0021861A1 EP80400536A EP80400536A EP0021861A1 EP 0021861 A1 EP0021861 A1 EP 0021861A1 EP 80400536 A EP80400536 A EP 80400536A EP 80400536 A EP80400536 A EP 80400536A EP 0021861 A1 EP0021861 A1 EP 0021861A1
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EP
European Patent Office
Prior art keywords
refractory
elements
part according
gas
porous
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.)
Granted
Application number
EP80400536A
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English (en)
French (fr)
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EP0021861B2 (de
EP0021861B1 (de
Inventor
Pierre Vayssiere
Charles Roederer
Jean-Claude Grosjean
Roland Grave
François Schleimer
Fernand Goedert
Romain Henrion
Lucien Lorang
Joseph Colling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institut de Recherches de la Siderurgie Francaise IRSID
Arcelor Luxembourg SA
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
Arbed SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Application filed by Institut de Recherches de la Siderurgie Francaise IRSID, Arbed SA filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Priority to AT80400536T priority Critical patent/ATE11305T1/de
Publication of EP0021861A1 publication Critical patent/EP0021861A1/de
Application granted granted Critical
Publication of EP0021861B1 publication Critical patent/EP0021861B1/de
Publication of EP0021861B2 publication Critical patent/EP0021861B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/35—Blowing from above and through the bath
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • B22D1/002—Treatment with gases
    • B22D1/005—Injection assemblies therefor
    • 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
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/34—Blowing through the bath
    • 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
    • C21C5/48—Bottoms or tuyéres of converters

Definitions

  • the present invention relates to parts made of refractory material, permeable to gases.
  • this permeability should also be "oriented" since it involves directing the flow of the blown gas in such a way that it enters under pressure into the porous part by one face and so by the opposite face in contact with the molten metal, the other faces having to remain completely sealed in order to prevent too great a lateral loss of the gas which naturally tends to increase with the height of the part.
  • the object of the present invention is to provide a refractory piece whose gas permeability simultaneously presents all the requisite qualities of selectivity and orientation so as to have a lifetime substantially equal to that of the refractory lining of the container intended to receive it. while allowing to inject the desired gas flow rates.
  • Another object of the invention is to be able to produce a part of the aforementioned type retaining the cumulative advantages of an oriented permeability specific to parts of homogeneous structure with a network of fine internal channels, and of the simplicity of manufacture specific to porous parts of structure. composite and this without having to bear the respective drawbacks.
  • the invention relates to a refractory part permeable to gases, essentially consisting of a mass of non-porous refractory material having a plurality of local discontinuities which extend over its entire height in the direction of the gas blowing.
  • these local discontinuities are obtained by making the non-porous refractory mass in a set of juxtaposed unit elements without material seals between them and between which separation means can be interposed.
  • these local discontinuities are obtained by making the non-porous refractory mass in a monolithic block traversed by perforations or slits oriented in the direction of the gas blowing and in which elements, without apparent play, are inserted non-destructible when hot and preferably with a smooth wall, for example steel elements.
  • the idea underlying the invention therefore consists in creating an artificial permeability in a piece of refractory material which is not naturally permeable, by providing in it discontinuities oriented in the direction of blowing. gaseous and produced by a particular design of the part, namely by an assembly of elements defining between them narrow junction zones through which the gas passes.
  • This assembly can be carried out in two distinct ways: either by incorporation in a refractory block of dispersed longitudinal metal or refractory elements, which cross the block right through the direction of the blowing (that is to say according to the height of the part), or by a juxtaposition of independent refractory elements and also oriented in the direction of blowing.
  • the gas passage zones are located on the periphery of the elements added in the refractory block, while, in the second case, they are more diffuse because they are distributed in the joint planes, i.e. -to say according to more or less rectilinear narrow slits which go to the ends of the part and which, consequently, divide the latter into a plurality of unitary elements.
  • the refractory assembly is advantageously placed in a metal receptacle constituted by a lateral envelope open at one end so as to leave free the upper face of the refractory mass, intended to be brought into contact with the molten metal and leaving, of course, to appear on its surface local discontinuities for the passage of gas, the other end of the metal casing being closed by a closure plate equipped with means for supplying the blowing gas.
  • the metal receptacle has the function in particular of ensuring a lateral seal at the periphery of the refractory mass. Furthermore, thanks to its more regular and freer external surface than that of the refractory, the metal envelope allows a close application of the part on the walls of the hole made in the refractory lining which receives it, or facilitates the extraction of this part for replacement, if necessary. We can also point out the role of this envelope as a reinforcement protecting the interior refractory mass against possible shocks during transport or handling.
  • the part constructed by assembling juxtaposed unit elements can be produced according to several variants.
  • a first category of variants takes into account the form of the juxtaposed refractory elements.
  • the latter may have a flattened shape (plate, strip, etc.) the equal width of which, and therefore defines, that of the refractory piece.
  • the elements are juxtaposed by their large lateral faces, succeeding each other parallel to each other along the length of the part.
  • the refractory elements can also have a more compact and elongated shape (parallelepiped with square base or slightly rectangular) whose sides are of dimensions smaller than those of the part.
  • the elements are juxtaposed parallel to each other by their four lateral faces, succeeding each other this time along the length and also according to the width of the part.
  • a second category of variants is based on the method of assembling the juxtaposed elements.
  • refractory elements with interposition between them of separation means so as to keep them at a short distance from each other and thus be able to increase the blowing rates if necessary.
  • separation means can take many forms. These are, for example, calibrated spacers providing open joints between the refractory elements, such as metallic or other wires, oriented in the direction of the gas blowing, or refractory concrete inserts housed in longitudinal notches provided for this purpose. facing each other on the side faces of the juxtaposed refractory elements.
  • separation means can also consist of bulkheads inserted and inserted without any apparent play between the refractory elements, for example plates made of porous refractory material, therefore permeable, or simple metallic strips of flat or corrugated shape.
  • the strip is corrugated, the junction area is further increased, therefore also the blowing possibilities.
  • the permeability of the part can be increased by providing surface grooves on the lateral faces of the elements which, once these have been assembled, will form fine straight channels for the passage of the blowing gas.
  • the case can arise when you want to pass large gas flows, up to several tens of liters per second, for example 40 1 / s, as it begins to practice with a cast iron converter of the oxygen blowing type from above, after the actual ripening period in order, for example, to over-decarburize the metal bath.
  • the permeability obtained by the simple joining of the elements is largely sufficient for the ironmaking operations of ladle brewing where the flow rates used are clearly lower, namely around 5 1 / s approximately, therefore of the order of ten times less than in the aforementioned case of the converter.
  • Figure 1 shows the entire permeable refractory piece as it can be presented to the user before being incorporated into the masonry of the metallurgical container intended to receive it, for example an oxygen blast converter from above .
  • This part is essentially constituted by an assembly 1 of refractory plates 2 having the same height h and the same width 1 as the part.
  • the plates 2 are juxtaposed and pressed so as to be in mutual contact by their large faces, succeeding one another according to the length L of the part.
  • the tightening and cohesion of the assembly are ensured by shrinking, by means of a metal casing 3 constituted, in the usual manner, by a steel sheet of approximately 1 mm thick.
  • a closing plate 4 completes the envelope 3 so as to produce a sealed receptacle in which the assembly 1 is adjusted.
  • the supply of the pressurized blowing gas takes place, in the direction indicated by the arrow, by a pipe 5 fixed in leaktight manner on the closure plate 4 around an orifice 6, which opens into a gas distribution channel 7 formed inside the assembly 1.
  • the plates 2 constituting the latter are made of refractory material of conventional composition and manufacture, for example in cooked magnesia without prior particle size selection, therefore non-porous.
  • their juxtaposition without a material seal defines in the room local discontinuities parallel to each other, referenced 8 in FIG. 1 and appearing on the surface in a network of rectilinear slots according to the width of the room. .
  • These discontinuities 8 constitute passage zones allowing the pressurized gas arriving in the distribution channel 7 to pass through the refractory assembly 1 and to exit by the end in contact with the liquid metal. It is understood that the presence of these permeable regions well located in the joint planes, gives the refractory assembly 1 thus formed an anisotropic permeability, that is to say oriented in the direction of gas blowing.
  • this permeability is also selective, because if the permeable nature of the junction zones 8 is marked enough to ensure the passage of pressurized blowing gas, it is nonetheless sufficient Sat - ment attenuated to prevent liquid metal infiltration.
  • the limit of pe rméab i-lotti limit corresponds to a micro-passage section of the order of 1 mm 2 maximum.
  • these grooves can also be, if desired, matched so as to define small channels once the assembly has been carried out. .
  • the variant embodiment illustrated in FIG. 3, consists in replacing the gas distribution channel, internal to the refractory assembly, by a space 7 ′ having the same function but disposed externally and below the refractory assembly 1.
  • L 'immediate advantage of this type of embodiment lies in the fact that the gas distribution space this time affects the entire section of the refractory assembly 1, which was not the case of the previous variant.
  • the part of FIG. 3 is produced from that illustrated in FIGS. 1 and 2 by replacing the closure plate 4 with a base plate 12 with openwork perforations 14 which can be distributed at random, but preferably located at right joint planes designated at 8 in FIG. 1.
  • the part thus obtained composed of the assembly 1 entombed by the envelope 3 and by the base plate 12, is placed in a lower frame 11 comprising a closure plate 4 'and an end ferrule 13 on which is placed, then welded for sealing reasons, the upper part.
  • a distribution space 7 ' is received between the base plate 12 and the closing plate 4' receiving the blowing gas through an opening 6 'made in the closing plate and extended by a supply line 5 ', and distributing it in the permeable assembly 1 through the perforations 14.
  • FIG. 5 An example of refractory plates with grooves suitable for this type of embodiment is illustrated in FIG. 5. As can easily be seen, this plate, referenced 2 ′, differs from its counterpart in FIG. 4 only in two points. essential: the recess constituting the internal gas distribution channel has disappeared and the rectilinear surface grooves 9 ′ this time directly connect the lower base through which the gas arrives at the opposite end intended to be brought into contact with the liquid metal.
  • the envelope 3 extends over the entire height of the refractory plates.
  • the envelope does not have the sole function of mechanically maintaining the assembly 1 but also serves to channel in the right direction the gases which would tend to escape laterally.
  • trapezoidal shape of the part illustrated in the figures in no way constitutes a necessary characteristic of the invention, but a relatively usual arrangement having the role of ensuring, under the pressure of the blowing gas, the blocking of assembly 1 in the masonry of the oven and thus avoid any risk of being propelled into the metal bath.
  • other means ensuring such blocking may be suitable.
  • the number of refractory plates 2 (or 2 ') constituting the assembly l this number is left to the free choice of the user.
  • the thickness of the refractory plates 2 it is advantageously around 3 to 5 cm. Under these conditions, if one chooses, for the permeable part, a format equivalent to that of a conventional refractory brick (15 x 10 cm 2 ) in order to be able to carry out a simple substitution, the number of plates juxtaposed according to the length of the coin is then five, as is the case in Figure 1.
  • non-porous refractory elements used for the construction of the part according to the invention, are not necessarily plates but may have other shapes or formats, insofar as it remains possible to carry out their assembly by juxtaposing them against each other by their lateral faces, that is to say so as to give the joint planes a common direction, which is that of the crossing of the gas.
  • means other than the grooves, can be used in order to increase the permeability of the part.
  • these means have the essential function of maintaining the refractory elements 2 at a short distance from each other. They can for example be constituted by plates of porous refractory material this time, or by thin sheets, preferably of thickness less than a millimeter, flat or corrugated and interposed without apparent play between the refractory elements 2.
  • the separating sheets as well as the outer casing are advantageously coated with a protective layer against the risks of recarburization by contact with the cast iron.
  • partitioning can be put in place at the same time as the refractory elements 2 according to an alternating assembly process.
  • partitioning it is also possible to use partitioning as a cell mold in which the non-porous refractory material is poured, which makes it possible to avoid, if desired, achieving the desired discontinuities in the refractory mass without having to assemble preformed refractory elements.
  • FIGS. 6 and 7 another category of variant embodiments of the invention, consisting in separating the refractory elements by means of spacers making open joints between them.
  • a part 16, 16 ′ is shown here produced by assembling parallelepipedic elements 18 of the same height h as the part and juxtaposed by their lateral faces, one after the other along the length L and the width 1 of the part. It is clear however that the presence of spacers between the elements is not linked to a particular shape of the latter and can very well be considered in the case of refractory elements shaped in planes extending over the entire width of the part, as shown in Figure 1.
  • the permeable refractory part 16 (16 ') is essentially constituted by an assembly 17 of non-porous refractory elements 18, four in number in the two examples considered, and joined together in a non-contiguous manner by the interposition of spacers 19 (19') .
  • the cohesion of the assembly is ensured as before by compressive hooping by means of the lateral metal envelope 3.
  • the closure plate 4 completes the envelope in the usual way, in order to produce a sealed receptacle in which the assembly does not appears only by its free upper face intended to be brought into contact with the molten metal contained in the metallurgical container.
  • the supply of pressurized insufflation gas is carried out, in the direction indicated by the arrow, by the supply pipe 5 mounted in leaktight manner on the closure plate 4 and connected to a power source not shown.
  • the elements 18 constituting the assembly are advantageously made of refractory material of conventional composition and manufacture, for example made of magnesia baked at high temperature to well resist wear, chemical and mechanical, by contact with the slag, but without particle size selection prior, therefore naturally non-porous.
  • their non-contiguous meeting by means of spacers 19, 19 ′ defines between them narrow spaces 20, constituting compulsory passage zones for the pressurized gas arriving at the base of the part via line 5 and passing through the refractory assembly 17 to emerge from the free upper end in contact with the molten metal. It is understood that the presence of these blowing spaces 20 located at the joint planes of the assembly gives the latter a "directed" permeability in the direction of the gas blowing.
  • the spacers 19 (19 ') it is important that they are designed so as to provide blowing spaces 20 narrow, that is to say whose thickness is preferably between 0.1 and 0.5 mm. Indeed, the permeability of the part 16 (16 ') only depends on the thickness of the spaces 20. It can therefore, at least in principle, be increased or reduced at will by simply modifying the gauge of the spacers. However, since permeability varies in the opposite direction to "selectivity", the risk of infiltration of molten metal increases with the thickness of the shims. In this regard, it is therefore preferable that the thickness of the shims is as small as possible.
  • the lower limit remains however conditioned by the unit flow of gas to be passed through the refractory piece, taking into account the pneumatic pressure which may be available upstream of the piece.
  • the pneumatic pressure which must be maintained to avoid infiltration of molten metal, then generates a large gas flow, often in pure loss, of as much as this flow rate must then be maintained continuously even outside of the metal preparation phases requiring gas blowing.
  • the thickness of the spacers is preferably close to 0.3 mm and, in any case, between 0.1 mm and 0.5 mm approximately.
  • the spacers may have multiple different embodiments insofar as they do not obstruct the passage section of the spaces 10 sufficiently large to prevent the flow of stirring gas that is wish to pass there.
  • the spacers may be constituted for example by surface irregularities of the elements 18 deliberately pronounced, such as pins or protrusions in the form of pellets, obtained by molding during the manufacture of these elements.
  • Another embodiment consists in bringing the spacers between the elements at the time of the assembly operation.
  • the shims are advantageously in the form of elongated bodies, oriented longitudinally in the spaces 20, that is to say in the direction of passage of the stirring gas so as not to hinder the passage.
  • FIGS. 6 and 7 respectively illustrate two different examples of the production of spacers of this type.
  • the spacers 19 are simple commercial metal wires, preferably made of steel, and calibrated to the desired dimension. They are four in number, one per refractory element, and all oriented longitudinally so as to reduce their master-torque as much as possible in the gas flow. Their position may be arbitrary, but it is best to locate the extremities t ed joint plans to minimize, as we understand, the functional elements of games at the time of meeting.
  • the spacers 19 ′ consist of refractory concrete inserts housed in notches 22 provided at the ends of the joint planes and obtained during the assembly of the elements 18 which have at this effect a clearance along their edge.
  • the inserts can be cast on site after non-contiguous meeting of the elements 18 thanks to the spacers 23 arranged in the immediate vicinity of the notches and having the dual role of providing the blowing spaces 20 and of constituting a sealing member allowing the casting of the inserts without risk of infiltration of liquid concrete into the spaces 20.
  • the spacers 23 are advantageously of the same shape and of the same caliber as the metal wires 19 (FIG. 6). However, unlike the latter, their function of spacer being only temporary, since they serve as relays to the inserts 19 ′, they can be made of wires of hot-destroyable material, for example polyamides such as that marketed under the brand name "nylon" which can either be eliminated in the last phase of manufacturing the part, or allowed to destroy itself when hot when put into service with the converter. It should be emphasized that the variant embodiments, described with reference to the figures, are characterized in particular by the fact that the spacers 19 or 19 ′ are bodies added in the whole of the part and not as indicated above, integral parts of the refractory elements 18.
  • a substantial advantage of the invention resides in the fact that the part 16 (16 ') can be easily produced by taking as raw material a simple refractory brick of the trade which one transforms according to the process which will be exposed.
  • the edges of the elements located in the vicinity of the spacers are subjected beforehand to a removal of material, for example by milling, so as to be able to form the notches 22 in which a concrete insert 19 ′ is poured by any suitable means. .
  • the cohesion of the assembly is then ensured by shrinking by means of the lateral metal casing 3 with the interposition of a layer of jointing product 21 which seals the gas at the level of the casing.
  • the assembly is completed by the closure plate 4 added by welding on the lower edge of the envelope.
  • the performance that can be expected from the part thus produced as a blowing member is conditioned, in particular, by the quality of the gas tightness at the envelope-refractory elements interface.
  • This tightness is directly linked to the nature of the jointing product 21 and / or to the way in which it is put in place.
  • the jointing product is advantageously a swelling refractory concrete which is poured in the liquid state in the interval initially provided between the metal casing and the refractory elements. The swelling, during subsequent drying, then causes, by reaction of the envelope and the elements, compression of the jointing product ensuring the desired seal.
  • this alternative embodiment requires knowledge and therefore control, always delicate, of the mechanical stresses which develop in the part and which can in particular lead to deformations of the envelope by swelling which make it more difficult, even random, the incorporation of the part in the masonry of the metallurgical container intended to receive it.
  • the metal casing 3 is made up of two equal half-shells 24 and 25 and U-shaped profile.
  • the assembly 13 is introduced into any one of the half-shells, for example the half-shell 24 after having brushed its inner surface with a D rodent of interlocking which adheres naturally to the metal wall lique.
  • An identical basting is then carried out on the inner face; of the half-shell 25 which is then arranged around the half of the assembly protruding from the half-shell 24.
  • the half-shells are dimensioned so that, at this stage of the operation, their respective edges are in pairs.
  • Another advantageous variant of the invention consists in sawing the starting refractory brick according to a cross cut, so as to obtain, as the figures show, intersecting blowing spaces. To do this, a saw blade is chosen whose thickness takes account of the thickness of the lateral envelope 3, so as to produce a permeable part which retains the same size as that of the initial brick, which in particular allows to be able to incorporate the permeable part without difficulty into the overall architecture of the refractory lining.
  • the elements 18 are subjected to a temperate heating after cutting and before assembly, in order to eliminate the volatile elements which are inevitably present and which could subsequently leak and therefore clog the blowing spaces.
  • the tempered heating operation can last a few hours and thus make it possible to go from a total carbon content of 8% to approximately 2% by weight.
  • the number of refractory elements 18 constituting the assembly is not necessarily equal to four, but may be less than or greater than this number.
  • the notches, arranged opposite one another on the refractory elements and defining a housing for the concrete inserts are not necessarily placed at the extremi tees of the joint planes, but can be provided at any location inside the blowing spaces.
  • the skilled person to carry out the part of the invention may be consisting of a non-porous refractory mass, no longer formed of juxtaposed unitary elements, but of a single block having internally perforations or slits which pass through it in the direction of the gas blowing and in which are inserted without apparent play of non-destructible hot elements and preferably having a smooth wall, for example steel elements.
  • part according to the invention was specially designed originally as part of the refractory lining of a metallurgical container, such as a converter for refining cast iron into steel, in which a pneumatic stirring of the molten metal bath, it is nonetheless of general application to any industrial practice requiring the passage of a refractory piece by a fluid in the gaseous state.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
EP80400536A 1979-04-25 1980-04-21 Gasdurchlässiger Körper aus feuerfestem Material und Verfahren zu seiner Herstellung Expired - Lifetime EP0021861B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80400536T ATE11305T1 (de) 1979-04-25 1980-04-21 Gasdurchlaessiger koerper aus feuerfestem material und verfahren zu seiner herstellung.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
FR7910445A FR2455008A1 (fr) 1979-04-25 1979-04-25 Piece refractaire a permeabilite selective et orientee pour l'insufflation d'un fluide
FR7910445 1979-04-25
LU81208A LU81208A1 (fr) 1979-04-25 1979-04-30 Dispositif pour l'injection de gaz a travers le fond dans le bain metallique contenu dans un recipient d'affinage
LU81208 1979-04-30
FR8002905A FR2475529A1 (fr) 1979-04-25 1980-02-08 Piece permeable en refractaire permeable non poreuse, notamment pour utilisation au convertisseur d'acierie et son procede de fabrication
FR8002905 1980-02-08

Publications (3)

Publication Number Publication Date
EP0021861A1 true EP0021861A1 (de) 1981-01-07
EP0021861B1 EP0021861B1 (de) 1985-01-16
EP0021861B2 EP0021861B2 (de) 1992-04-01

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ID=27250915

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400536A Expired - Lifetime EP0021861B2 (de) 1979-04-25 1980-04-21 Gasdurchlässiger Körper aus feuerfestem Material und Verfahren zu seiner Herstellung

Country Status (12)

Country Link
US (2) US4340208A (de)
EP (1) EP0021861B2 (de)
JP (1) JPS55145129A (de)
AT (1) AT376701B (de)
AU (1) AU533373B2 (de)
BR (1) BR8002528A (de)
CA (1) CA1146599A (de)
DE (1) DE3069960D1 (de)
ES (1) ES8103718A1 (de)
FR (2) FR2455008A1 (de)
LU (1) LU81208A1 (de)
PT (1) PT71141A (de)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0043338A1 (de) * 1980-06-25 1982-01-06 Arbed S.A. Feuerfeste, gasdurchlässige Baukörper
EP0061987A1 (de) * 1981-03-23 1982-10-06 Arbed S.A. Verfahren und Vorrichtung zum Behandeln von Metallschmelzen im Rahmen metallurgischer Prozesse
EP0063532A1 (de) * 1981-04-22 1982-10-27 Arbed S.A. Verfahren und Einrichtung zum direkten Herstellen von flüssigem Eisen
EP0064019A1 (de) * 1981-04-24 1982-11-03 Arbed S.A. Verfahren und Vorrichtung zum Entschwefeln von Eisenschmelzen
EP0080403A1 (de) * 1981-11-23 1983-06-01 UNION SIDERURGIQUE DU NORD ET DE L'EST DE LA FRANCE par abréviation "USINOR" Einrichtung zum Einführen von Gas in ein Metallbad
FR2525632A1 (fr) * 1982-04-22 1983-10-28 Siderurgie Fse Inst Rech Procede de traitement pour ameliorer la permeabilite des fonds de recipients metallurgiques pourvus d'elements refractaires permeables, et materiaux pour sa mise en oeuvre
EP0093040A1 (de) * 1982-04-22 1983-11-02 Institut De Recherches De La Siderurgie Francaise (Irsid) Verfahren zur Verlängerung der Haltbarkeit feuerfester gasdurchlässiger Elemente im Boden metallurgischer Gefässe, insbesondere bei Sauerstoffaufblaskonvertern für Stahl
GB2120369A (en) * 1982-05-20 1983-11-30 Ksr Int Ltd An improved metallurgical lance
FR2532194A1 (fr) * 1982-08-31 1984-03-02 Comp Generale Electricite Creuset pour traiter par un flux gazeux un materiau fondu
EP0043787B1 (de) * 1980-07-09 1984-05-02 Arbed S.A. Feuerfeste, gasdurchlässige Baukörper
FR2538410A1 (fr) * 1982-12-24 1984-06-29 Siderurgie Fse Inst Rech Element refractaire porte-tuyere et procede de prevention de l'usure du refractaire faisant application dudit element
EP0146079A3 (en) * 1983-12-12 1987-01-07 Arbed S.A. Gas-permeable refractory plug
DE3625117C1 (en) * 1986-07-25 1987-11-26 Didier Werke Ag Gas-flushing cone
DE3206499C1 (de) * 1982-02-24 1988-03-03 Didier-Werke Ag, 6200 Wiesbaden Vorrichtung zum Einführen von Gasen in metallurgische Gefäße
US4744546A (en) * 1986-02-03 1988-05-17 Voest-Alpine Aktiengesellschaft Flushing arrangement for a metallurgical vessel
WO1993001317A1 (de) * 1991-07-08 1993-01-21 Veitsch-Radex Aktiengesellschaft Für Feuerfeste Erzeugnisse Bodenausbildung für ein metallurgisches gefäss
GB2276437A (en) * 1991-06-18 1994-09-28 Insul Co Inc A device for insufflating gas into molten metal
CN106825533A (zh) * 2015-12-03 2017-06-13 刘得顺 一种可修复组合型透气砖的制作方法
CN111570886A (zh) * 2020-04-10 2020-08-25 彩虹集团有限公司 一种卧式装夹耐火材料切割加热丝槽的方法

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LU82552A1 (de) * 1980-06-25 1982-01-20 Arbed Feuerfester,gasdurchlaessiger baukoerper
FR2495187A1 (fr) 1980-12-02 1982-06-04 Siderurgie Fse Inst Rech Procede de realisation de fonds de recipients metallurgiques
FR2504664A1 (fr) * 1981-04-24 1982-10-29 Francais Aciers Speciaux Dispositif de soufflage de gaz de brassage dans un convertisseur d'affinage des metaux
AU541441B2 (en) * 1981-07-15 1985-01-10 Nippon Steel Corporation Bottom blowing nozzle embedded in a refractory block
NL189008C (nl) * 1981-11-18 1992-12-01 Hoogovens Groep Bv Gasdoorlatend wandelement voor een met vuurvast materiaal bekleed metallurgisch vat, in het bijzonder voor een l.d.-staalconverter.
FR2518240A1 (fr) * 1981-12-16 1983-06-17 Siderurgie Fse Inst Rech Element refractaire permeable pour l'introduction d'un fluide de brassage dans un bain de metal en fusion
US4462576A (en) * 1982-02-24 1984-07-31 Didier-Werke Ag Apparatus for supplying gas through the wall of a metallurgical container
LU84167A1 (de) * 1982-05-25 1983-11-23 Arbed Feuerfeste,gasdurchlaessige baukoerper
AT376455B (de) * 1982-10-06 1984-11-26 Oesterr Amerikan Magnesit Metallurgischer ofen oder metallurgisches gefaess
DE3318422C2 (de) * 1983-05-20 1985-03-21 Didier-Werke Ag, 6200 Wiesbaden Gasspülanordnung und Verfahren zur Betätigung einer derartigen Anordnung
AT382889B (de) * 1984-03-15 1987-04-27 Voest Alpine Ag Spueleinrichtung fuer ein metallurgisches gefaess
AT383617B (de) * 1984-09-18 1987-07-27 Oesterr Amerikan Magnesit Gasspuelstein fuer metallurgische oefen und gefaesse
AT384623B (de) * 1985-12-23 1987-12-10 Tosin Albert Spuelstein fuer metallurgische gefaesse
US4754954A (en) * 1986-01-29 1988-07-05 Lazcano Navarro Arturo Refractory device for introducing a gas into a molten metal and a method for making the device
US4741515A (en) * 1986-10-20 1988-05-03 Bethlehem Steel Corporation Apparatus for introducing gas into a metallurgical vessel
US4705563A (en) * 1986-10-23 1987-11-10 The United States Of America As Represented By The United States Department Of Energy Methods and apparatus for reducing corrosion in refractory linings
DE3727938C1 (de) * 1987-08-21 1988-09-08 Didier Werke Ag Spuelstein
DE3734713A1 (de) * 1987-10-14 1989-04-27 Pa Ha Ge Huetten Und Giesserei Spuelstein fuer metallurgische gefaesse
WO1989007659A1 (fr) * 1988-02-19 1989-08-24 Veitscher Magnesitwerke-Actien-Gesellschaft Bloc permeable aux gaz pour operations metallurgiques
US4840356A (en) * 1988-06-13 1989-06-20 Labate Michael D Externally replaceable stirring plug for molten metal vessels
US4840355A (en) * 1988-07-13 1989-06-20 Labate M D Slag controlling device for basic oxygen furnaces
US5147137A (en) * 1991-01-22 1992-09-15 The United States Of America As Represented By The United States Department Of Energy Refractory thermowell for continuous high temperature measurement of molten metal
US5225143A (en) * 1991-02-01 1993-07-06 Insul Company, Inc. Device for directional gas distribution into molten metal
DE4207881C1 (en) * 1992-03-12 1993-08-26 Veitscher Magnesitwerke-Actien-Gesellschaft, Wien, At Gas flushing brick for melting vessels - has gas channels slightly inclined to vertical to ensure that gas flow is towards centre of vessel despite non-vertical fitting of brick inside vessel bottom
DE19954918C2 (de) * 1999-11-16 2001-09-20 Veitsch Radex Gmbh Wien Feuerfester keramischer Gasspülstein
US6994148B1 (en) 2003-12-30 2006-02-07 Hayes Lemmerz International, Inc. Method and apparatus for venting a gas in a lined pressure furnace
CN101497935B (zh) * 2008-02-03 2010-12-01 攀钢集团攀枝花钢铁研究院有限公司 一种更换式透气砖的安装定位方法
RU2750254C1 (ru) * 2017-10-26 2021-06-24 Закрытое акционерное общество "Ферро Балт Плюс" Устройство для донной продувки металла газом в ковше
RU2766401C1 (ru) * 2021-07-09 2022-03-15 Акционерное общество "Ферро Балт Плюс" Устройство для донной продувки жидкого металла газом в ковше
EP4504989A1 (de) * 2022-04-05 2025-02-12 Doggone Investment Co. LLC Vorrichtung und verfahren zur herstellung von hochreinen legierungen auf kupferbasis
CN118048501B (zh) * 2024-04-11 2024-07-19 洛阳利尔功能材料有限公司 一种拼缝式透气砖及拼缝元件的制备拼接组合成型方法

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FR1031504A (fr) * 1957-09-09 1953-06-24 Air Liquide Dispositif d'insufflation de gaz dans une masse de métal fondu
FR1094809A (fr) * 1949-06-22 1955-05-24 Her Majesty The Queen In The R Appareil pour l'épuration de matières liquides par barbotage de fluides gazeux
FR1162727A (fr) * 1956-10-26 1958-09-16 Siderurgie Fse Inst Rech Procédé pour obtenir des pièces en béton poreux assurant l'insufflation dirigée d'un fluide et produits obtenus au moyen de ce procédé
FR1183569A (fr) * 1957-09-30 1959-07-09 Siderurgie Fse Inst Rech Pièces poreuses en béton pour insufflation dirigée d'un fluide
FR1271201A (fr) * 1960-07-28 1961-09-08 Siderurgie Fse Inst Rech Procédé de fabrication de pièces réfractaires à perméabilité orientée et produits obtenus par ce procédé
FR1347014A (fr) * 1962-08-07 1963-12-27 Air Liquide Perfectionnement aux injecteurs, tuyères et brûleurs pour fours métallurgiques
FR1350751A (fr) * 1962-12-14 1964-01-31 Siderurgie Fse Inst Rech Perfectionnements aux dalles et bouchons poreux
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GB1482443A (en) * 1973-07-27 1977-08-10 Didier Werke Ag Gas pervious refractory brick

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FR418622A (fr) * 1910-04-05 1910-12-14 Alphonse Gouillon Fond de convertisseur
US2456798A (en) * 1944-10-06 1948-12-21 Edwin E Slick Bottom structure for bessemer converters
FR1094809A (fr) * 1949-06-22 1955-05-24 Her Majesty The Queen In The R Appareil pour l'épuration de matières liquides par barbotage de fluides gazeux
FR1162727A (fr) * 1956-10-26 1958-09-16 Siderurgie Fse Inst Rech Procédé pour obtenir des pièces en béton poreux assurant l'insufflation dirigée d'un fluide et produits obtenus au moyen de ce procédé
FR1031504A (fr) * 1957-09-09 1953-06-24 Air Liquide Dispositif d'insufflation de gaz dans une masse de métal fondu
FR1183569A (fr) * 1957-09-30 1959-07-09 Siderurgie Fse Inst Rech Pièces poreuses en béton pour insufflation dirigée d'un fluide
FR1271201A (fr) * 1960-07-28 1961-09-08 Siderurgie Fse Inst Rech Procédé de fabrication de pièces réfractaires à perméabilité orientée et produits obtenus par ce procédé
FR1347014A (fr) * 1962-08-07 1963-12-27 Air Liquide Perfectionnement aux injecteurs, tuyères et brûleurs pour fours métallurgiques
FR1350751A (fr) * 1962-12-14 1964-01-31 Siderurgie Fse Inst Rech Perfectionnements aux dalles et bouchons poreux
FR1577592A (de) * 1967-07-26 1969-08-08
DE2205656B2 (de) * 1972-02-07 1974-04-18 Uralskij Nautschno-Issledowatelskij Institut Tschernych Metallow, Swerdlowsk (Sowjetunion)
GB1482443A (en) * 1973-07-27 1977-08-10 Didier Werke Ag Gas pervious refractory brick

Cited By (23)

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Publication number Priority date Publication date Assignee Title
EP0043338A1 (de) * 1980-06-25 1982-01-06 Arbed S.A. Feuerfeste, gasdurchlässige Baukörper
EP0043787B1 (de) * 1980-07-09 1984-05-02 Arbed S.A. Feuerfeste, gasdurchlässige Baukörper
EP0061987A1 (de) * 1981-03-23 1982-10-06 Arbed S.A. Verfahren und Vorrichtung zum Behandeln von Metallschmelzen im Rahmen metallurgischer Prozesse
EP0063532A1 (de) * 1981-04-22 1982-10-27 Arbed S.A. Verfahren und Einrichtung zum direkten Herstellen von flüssigem Eisen
EP0064019A1 (de) * 1981-04-24 1982-11-03 Arbed S.A. Verfahren und Vorrichtung zum Entschwefeln von Eisenschmelzen
EP0080403A1 (de) * 1981-11-23 1983-06-01 UNION SIDERURGIQUE DU NORD ET DE L'EST DE LA FRANCE par abréviation "USINOR" Einrichtung zum Einführen von Gas in ein Metallbad
DE3206499C1 (de) * 1982-02-24 1988-03-03 Didier-Werke Ag, 6200 Wiesbaden Vorrichtung zum Einführen von Gasen in metallurgische Gefäße
FR2525632A1 (fr) * 1982-04-22 1983-10-28 Siderurgie Fse Inst Rech Procede de traitement pour ameliorer la permeabilite des fonds de recipients metallurgiques pourvus d'elements refractaires permeables, et materiaux pour sa mise en oeuvre
US4696456A (en) * 1982-04-22 1987-09-29 Institut De Recherches De La Siderurgie Francaise Method of improving permeability of metallurgical vessels, and material for implementing the same
EP0093040A1 (de) * 1982-04-22 1983-11-02 Institut De Recherches De La Siderurgie Francaise (Irsid) Verfahren zur Verlängerung der Haltbarkeit feuerfester gasdurchlässiger Elemente im Boden metallurgischer Gefässe, insbesondere bei Sauerstoffaufblaskonvertern für Stahl
EP0093039A1 (de) * 1982-04-22 1983-11-02 Institut De Recherches De La Siderurgie Francaise (Irsid) Verfahren zur Erhöhung der Gasdurchlässigkeit von feuerfesten Elementen im Boden von metallurgischen Gefässen sowie hierfür geeignetes Material
GB2120369A (en) * 1982-05-20 1983-11-30 Ksr Int Ltd An improved metallurgical lance
FR2532194A1 (fr) * 1982-08-31 1984-03-02 Comp Generale Electricite Creuset pour traiter par un flux gazeux un materiau fondu
FR2538410A1 (fr) * 1982-12-24 1984-06-29 Siderurgie Fse Inst Rech Element refractaire porte-tuyere et procede de prevention de l'usure du refractaire faisant application dudit element
EP0112769A3 (en) * 1982-12-24 1984-08-01 Institut De Recherches De La Siderurgie Francaise (Irsid) Holder for a tuyere made of refractory material, and process for preventing wear during use
EP0146079A3 (en) * 1983-12-12 1987-01-07 Arbed S.A. Gas-permeable refractory plug
US4744546A (en) * 1986-02-03 1988-05-17 Voest-Alpine Aktiengesellschaft Flushing arrangement for a metallurgical vessel
DE3625117C1 (en) * 1986-07-25 1987-11-26 Didier Werke Ag Gas-flushing cone
GB2276437A (en) * 1991-06-18 1994-09-28 Insul Co Inc A device for insufflating gas into molten metal
WO1993001317A1 (de) * 1991-07-08 1993-01-21 Veitsch-Radex Aktiengesellschaft Für Feuerfeste Erzeugnisse Bodenausbildung für ein metallurgisches gefäss
CN106825533A (zh) * 2015-12-03 2017-06-13 刘得顺 一种可修复组合型透气砖的制作方法
CN111570886A (zh) * 2020-04-10 2020-08-25 彩虹集团有限公司 一种卧式装夹耐火材料切割加热丝槽的方法
CN111570886B (zh) * 2020-04-10 2021-08-27 彩虹集团有限公司 一种卧式装夹耐火材料切割加热丝槽的方法

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Publication number Publication date
ES490903A0 (es) 1981-03-16
EP0021861B2 (de) 1992-04-01
DE3069960D1 (en) 1985-02-28
AU5781080A (en) 1980-10-30
AT376701B (de) 1984-12-27
FR2455008A1 (fr) 1980-11-21
LU81208A1 (fr) 1980-12-16
FR2455008B3 (de) 1982-02-26
US4340208A (en) 1982-07-20
AU533373B2 (en) 1983-11-17
PT71141A (fr) 1980-05-01
USRE32192E (en) 1986-06-24
BR8002528A (pt) 1980-12-09
EP0021861B1 (de) 1985-01-16
ES8103718A1 (es) 1981-03-16
FR2475529A1 (fr) 1981-08-14
JPS55145129A (en) 1980-11-12
ATA526480A (de) 1984-05-15
FR2475529B1 (de) 1984-02-24
CA1146599A (fr) 1983-05-17

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