EP0422196A1 - Process and installation for producing a lining on the internal walls of a metallurgical vessel. - Google Patents
Process and installation for producing a lining on the internal walls of a metallurgical vessel.Info
- Publication number
- EP0422196A1 EP0422196A1 EP90907161A EP90907161A EP0422196A1 EP 0422196 A1 EP0422196 A1 EP 0422196A1 EP 90907161 A EP90907161 A EP 90907161A EP 90907161 A EP90907161 A EP 90907161A EP 0422196 A1 EP0422196 A1 EP 0422196A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- wall
- coating
- mixture
- binder
- 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
Links
- 238000000034 method Methods 0.000 title claims description 27
- 238000009434 installation Methods 0.000 title claims description 21
- 230000008569 process Effects 0.000 title description 4
- 239000000463 material Substances 0.000 claims abstract description 67
- 239000011248 coating agent Substances 0.000 claims abstract description 55
- 238000000576 coating method Methods 0.000 claims abstract description 55
- 239000000203 mixture Substances 0.000 claims abstract description 49
- 239000002245 particle Substances 0.000 claims abstract description 42
- 239000011230 binding agent Substances 0.000 claims abstract description 29
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 23
- 229910001338 liquidmetal Inorganic materials 0.000 claims abstract description 19
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 6
- 238000003892 spreading Methods 0.000 claims description 8
- 230000007480 spreading Effects 0.000 claims description 8
- 238000009749 continuous casting Methods 0.000 claims description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 229920002472 Starch Polymers 0.000 claims description 4
- 239000008107 starch Substances 0.000 claims description 4
- 235000019698 starch Nutrition 0.000 claims description 4
- 229910000514 dolomite Inorganic materials 0.000 claims description 3
- 239000010459 dolomite Substances 0.000 claims description 3
- -1 etc. Substances 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 2
- 239000004115 Sodium Silicate Substances 0.000 claims description 2
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 2
- 229910000423 chromium oxide Inorganic materials 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000004571 lime Substances 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- 229920001568 phenolic resin Polymers 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 2
- 229910052845 zircon Inorganic materials 0.000 claims description 2
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 159000000011 group IA salts Chemical class 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 235000011837 pasties Nutrition 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 241000282421 Canidae Species 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/02—Linings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/02—Linings
- B22D41/023—Apparatus used for making or repairing linings
Definitions
- the present invention relates to a method for producing a coating on the interior walls of a metallurgical container intended to receive liquid metal.
- the present invention also relates to an installation for implementing the above method.
- Several methods are known for producing a coating on the interior walls of a metallurgical container.
- REPLACEMENT SHEET There is also known a method according to which a template is placed inside a metallurgical container, a material composed of refractory particles and a thermosetting binder is pneumatically projected between the template and the interior walls of the container. leaving the template in place to cause the binder to harden, finally we remove the template.
- the sprayed material contains an inorganic compound containing water of crystallization.
- the material of the aforementioned type is compacted between the template and the interior walls of the container, either by tamping, or by vibration or impact.
- the object of the present invention is to remedy the drawbacks of known methods and to propose a method which is simple, rapid and economical to use, and which is particularly well suited to producing the wear coating of a metallurgical container.
- the object of the present invention is also to propose an installation for the implementation of said method.
- the method for producing a coating on the interior walls of a metallurgical container intended to receive liquid metal comprises the following steps: a) a metallurgical container is placed on a suitable support, the interior walls to be coated are relatively hot; b) the support is tilted and the metallurgical container is brought successively to several different positions in each of which an inner wall or part of the container wall is substantially horizontal and turned upwards; c) in each of the aforementioned positions, at least one layer of a substantially dry material comprising a mixture of refractory particles and a binder of the thermosetting type or equivalent, is spread over said wall or part of internal wall, the composition and the particle size of the mixture refractory particles being such that this mixture sintered in contact with the liquid metal, and this material is spread so as to constitute a substantially regular layer; d) the interior walls of the container being initially at a temperature sufficient to be able to heat the material deposited thereon to a temperature allowing the softening and the setting of
- REPLACEMENT SHEET Since the walls and the bottom of the container are initially at a sufficient temperature for 1 to be able to heat the coating deposited at a temperature making it possible to cause the softening and the setting of the binder of the thermosetting type, the newly spread material forms with the deposited material. previously a monolithic coating which adheres to the wall on which it is spread.
- the installation of the coating can therefore be carried out very quickly, without the aid of a template, and without the need for compaction of the material. Furthermore, the material deposited being substantially dry, no drying is necessary, and, when the quality of the cast steel does not require the departure of the water of crystallization and / or certain gases which the coating may contain, the metallurgical container is therefore practically immediately returned to the operating circuit, which allows a very rapid rotation rate thereof.
- the method makes it possible to deposit a layer of determined thickness: if a consumable layer is deposited on a partially worn permanent coating, it is possible to follow the external surface thereof and to avoid any unnecessary excess of material.
- the coating obtained is refractory insulator. It is therefore possible, in most cases, to use the metallurgical vessel without any preheating
- the installation for producing a coating on the interior walls of a metallurgical container intended to receive a liquid metal is characterized in that it comprises:
- this installation makes it possible, in most cases, without a template, to coat a coating which does not require any drying before putting the container back into service, and the newly spread material forms with the material already in place a monolithic block. which adheres to the wall.
- FIG. 1 is a cutaway diagram of an installation according to a first embodiment of the invention * and comprising a robot for coating a ladle;
- FIG. 2 is a diagram, partially in section, of an installation according to another embodiment of the invention for coating a ladle;
- FIG. 3 is a partial schematic view in cross section of a continuous casting distributor placed in a rocker near the robot of Figure 1, the rocker being in the inverted position;
- FIGS. 4A, 4B and 4C are views similar to Figure 3, the distributor being respectively in the normal position, in the tilted position to the left and in the tilted position to the right, for depositing the coating respectively on the bottom and on one and the other of the two longitudinal side walls.
- the installation according to the invention is suitable for coating the interior walls of a ladle 1 whose casing 2, provided with ears 3, is internally lined with a coating permanent refractory 4, made of shaped bricks or refractory concrete.
- This permanent refractory coating 4 must be covered with a wear coating 5 deposited on the bottom and the inner side walls of the ladle 1 and intended to be in contact with the liquid metal.
- the ladle 1 is placed on a tilting support (not shown) known per se. This support
- REPLACEMENT SHEET tilting can receive the pocket 1 in the position shown in dashes in the figure, in which the bottom of the pocket 1 is substantially horizontal.
- the support can also tilt the pocket 1 into the position shown in solid lines, in which the lowest part of the interior wall of the pocket is substantially horizontal and turned upwards.
- the tilting support comprises means, known in themselves and shown diagrammatically by rollers 6, 7, 8, for rotating the pocket 1 around its axis X, X ', in this tilted position, as shown diagrammatically by the arrows 9.
- the installation comprises means for preparing or receiving and conveying a substantially dry material intended to be spread to form the wear coating 5.
- these means consist of two hoppers 10a, 10b, mounted on a frame 11 and adapted to receive, in bags (not shown) or by a conveyor, for example a belt conveyor (not shown ), the substantially dry mixture to be deposited.
- these hoppers 10a, 10b can be alternately closed and pressurized with compressed air for the pneumatic transport of the material by a flexible pipe 12 to a cyclonic separator 13 which separates the material to be deposited from the air of transport.
- the material can thus be conveyed without pressure by simple gravity in a flexible pipe 14 to the discharge point 15 which can be provided with a valve (not shown).
- the cyclonic separator 13 and the flexible pipe 14 are carried by a robot 16.
- the robot 16 comprises a substantially vertical barrel 17, movable in rotation about its axis by
- REPLACEMENT SHEET relative to a fixed base 18 and driven in rotation in one direction or the other, as indicated by arrow 19, by a motor 20.
- a substantially horizontal arm 21 carried by the barrel 17 can move vertically (arrow 22) along the barrel 17 under the action of a motor 23.
- the cyclonic separator 13 is carried by the arm 21.
- a second substantially horizontal arm 24 is articulated at one of its ends at the end of the arm 21 and can pivot in a horizontal plane around the end of the arm 21 (arrow 25) under the action of a motor 26.
- the other end of the arm 24 supports a substantially vertical mast 27 which can move vertically (arrow 28) under the action of a first motor 29, and which can rotate around its axis (arrow 30) under the action of 'a second motor 31.
- the mast 27 is extended downwards by a part 27a which extends obliquely and which ends in a substantially vertical part 27b.
- the flexible pipe 14 is hung along the mast 27, the discharge point 15 of this pipe being adjacent to the lower end of the part 27b of the mast 27.
- the diameter of this flexible pipe 14 is sufficient to allow satisfactory flow of the material by gravity without risk of clogging.
- the robot 16 also includes means, not shown, for coordinating the arrival of the material, the movements of the elements which compose it and the movements of the pocket on the tilting support.
- the installation according to the invention comprises a tilting support 32 capable of pivoting about an axis 33 relative to a fixed frame 34 under the action of a pivoting jack 35.
- the tilting support 32 carries a turntable 36 capable of rotating relative to the support 32 under the action of a motor 37 by any known means symbolized by balls 38.
- the turntable 36 is intended to receive a pocket casting 1 fixed on the turntable 36 by means of clamps 39 actuated by a jack 40, so as to rotate the pocket 1 around its axis X, X '(arrow 41).
- the lowest part of the interior wall of the pocket 1 is substantially horizontal.
- the material to be spread is stored in a hopper 42, which has for example a conical shape, inside which rotates a mixing screw 43 driven by a motor not shown. At the lower part of the hopper 42, the material falls into a conveyor screw 44 at the discharge end 45 from which the material is deposited on the inside wall of the bag 1.
- the screw 44 is shown mounted on a jack 46 which allows it to be fitted onto the lower part of the hopper 42 and to separate it from the latter, this lower part of the hopper then being closed by a valve not shown.
- the hopper 42 and the conveyor screw 44 are mounted on a carriage 47 movable along the arrow 47a in the axial direction of the screw 44 to allow the material to be spread along a generator of the interior wall of the pocket 1.
- the carriage 47 is itself mounted on a chassis 48 which is for example movable in the direction perpendicular to the direction of movement of the carriage 47.
- the assembly forms a robot 49 equipped with means not shown to coordinate the arrival of the material with the movements from pocket 1
- the bottom 4a of the pocket can be coated in a manner similar to that described with reference to FIG. 1, this bottom being in a horizontal position and the coating material being poured onto this bottom, for example by means a tubular chute movable over the entire surface of said bottom.
- a continuous casting distributor 50 is mounted on a tilting frame 51 of any known type near, for example, the robot 16 with articulated arms described above in reference to figure 1.
- the distributor 50 is shown in Figure 3 in the inverted position which allows to drop the wear coating used and "wolves" of metal and / or slag attached to it, for example in a waste bin not represented.
- the distributor 50 is shown in Figure 4A in the normal position of use; the horizontal arms 21 and 24 are deployed and the mast 27 is oriented so as to allow the coating to be formed on the bottom 52 of the distributor 50.
- the flexible pipe 14 is not shown for the sake of clarity of the drawing.
- the distributor 50 is shown in Figure 4B in the tilted position to the left of the figure, in which the longitudinal side wall 53 is substantially in a horizontal position: the bent portion 27a can thus penetrate inside the distributor to spread the material over the entire surface of the wall 53 and thus form the covering 55.
- the distributor 50 is tilted to the right and the articulated arm 24 is deployed so as to allow the deposition of the material on the wall 54 and the formation of the coating 55.
- REPLACEMENT SHEET wear 5, 55 is a substantially dry material comprising a mixture of refractory particles and a binder of the thermosetting type or equivalent, the composition and the particle size of the mixture of refractory particles being such that this mixture sintered in contact with the liquid metal.
- this material is intended to be spread over the interior walls of a metallurgical container which are initially at a temperature sufficient to be able to heat the material deposited thereon to a temperature allowing the softening and setting of the binder of the thermosetting type. or equivalent and the formation of a monolithic coating which adheres to these internal walls of the container 1, 50.
- the refractory particles can be chosen, for example, from the group comprising magnesian, silico-magnesian, silico-aluminous, alu inous particles , siliceous, calcium carbonate, lime, dolomite, carbon, chromium oxide, zircon, and mixtures thereof. These particles can be in the form of grains, powders and / or fibers.
- thermosetting type or equivalent for example, from the group comprising natural and synthetic thermosetting resins such as for example phenol-formaldehyde resins, urea-formaldehyde resins, polyvinyl resins, etc. minerals of the thermosetting type or equivalent softening with heat such as for example sodium silicate (which dissolves at around 70 ° C.), metasilicate, etc., organic binders and / or agglutinants such as for example starch, starch, stearate, carboxymethylcellulose, etc., and mixtures of these compounds.
- natural and synthetic thermosetting resins such as for example phenol-formaldehyde resins, urea-formaldehyde resins, polyvinyl resins, etc.
- minerals of the thermosetting type or equivalent softening with heat such as for example sodium silicate (which dissolves at around 70 ° C.), metasilicate, etc., organic binders and / or agglutinants such as for example starch, starch
- the refractory particles can be simply mixed with particles of the binder of the thermosetting type. In some cases, the particles
- REPLACEMENT SHEET refractories can be embedded in the binder, for example if very hygroscopic particles such as dolomite particles are used which tend to absorb moisture. 5
- the widespread mixture is preferably refractory insulator, and consists of particles whose particle size is studied so as to give the coating in place after sintering in contact with the liquid metal a total porosity greater than 45%: this
- the insulating nature of the coating limits the cooling of the liquid metal in contact with the walls of the metallurgical container, which makes it possible to dispense with preheating the walls of the container before use without risk of solidification of metal on contact with
- the widespread mixture can have a general composition of the following type:
- Organic and / or mineral fibers 0 to 10%
- Binder 0 to 10%
- compositions of mixtures of different characters can thus be given as nonlimiting examples, in which the binder appears in the section "loss on ignition”:
- Alkaline salts 0 to 5%
- a metallurgical container 1, 50 is placed on a suitable support, the internal walls to be coated are relatively hot; b) tilting the support and bringing the metallurgical container 1, 50, successively in several different positions in each of which an inner wall or part of the container wall is substantially horizontal and turned upwards; c) in each of the aforementioned positions, the said wall or part of the interior wall is spread over
- REPLACEMENT SHEET at least one layer of a substantially dry material comprising a mixture of refractory particles and a binder of the thermosetting type or equivalent, the composition and the particle size of the mixture of refractory particles being such that this mixture sintered in contact with the liquid metal, and this material so as to constitute a substantially regular layer; d) the interior walls of the container being initially at a temperature sufficient to be able to heat the material deposited thereon to a temperature allowing the setting of the binder of thermosetting type or equivalent and the formation of a monolithic coating 5, 55 which adheres to inner walls of the container.
- the permanent internal coating can thus be at a temperature ranging from approximately 250 ° C. to approximately 400 ° C.: it is thus possible to refill a container shortly after its use.
- a container whose walls are cold is to be refilled, one begins by reheating them to the required temperature with any known means, for example a gas burner or an infrared ramp.
- Some walls may not be accessible by the means described above and are coated in any known manner, automatically or manually.
- REPLACEMENT SHEET prepare and install a preformed covering panel made of the same material.
- the pouring orifice of the container is temporarily closed during the deposition of the coating.
- the binder softens and becomes sticky, which makes it possible to stick the material to the interior walls and to form on them a monolithic coating with the material already in square. It is thus possible to quickly move the container and even to tilt it nearly 180 ° to coat a wall opposite to that already coated without the risk of dropping the coating already in place. It is therefore possible to omit the heating step from the template of the known methods described above.
- the material being substantially dry, it is also unnecessary, in most cases, to carry out the necessary drying with the methods using aqueous mixtures.
- the quality of the cast steel requires the elimination of the water of crystallization and / or harmful gases likely to be released on contact with the liquid metal, it remains necessary to heat the coating in order to eliminate this water and these gas.
- REPLACEMENT SHEET coating in place is ensured by sintering the material in contact with the liquid metal.
- the means used for storing, transporting and spreading the coating material may be different from those described: it is for example possible to use, instead of the hoppers 10 alternately pressurized, a barrel type spraying machine suitable for conveying pulverulent materials which may contain fibers, and more generally any set of known means of transport and handling capable of conveying the material to be spread over the entire wall or part of the interior wall to be coated. Any device making it possible to separate the material to be dispersed from the compressed transport air can be used in place of the cyclonic separator 13.
- REPLACEMENT SHEET It is also possible to use the method and the installation in accordance with the invention to form the permanent refractory coating for protecting a metallurgical container, the composition and the particle size of the mixture of particles used being suitable for such use.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
On place sur un support approprié un récipient métallurgique (1) dont les parois intérieures à revêtir sont relativement chaudes; on fait basculer le support et on amène le récipient métallurgique (1) successivement dans plusieurs positions différentes dans chacune desquelles une paroi ou une partie de paroi intérieure du récipient est sensiblement horizontale et tournée vers le haut; dans chacune des positions précitées on répand sur ladite paroi ou partie de paroi intérieure au moins une couche d'un matériau sensiblement sec comprenant un mélange de particules réfractaires et un liant du type thermodurcissable ou équivalent, la composition et la granulométrie du mélange de particules réfractaires étant telles que ce mélange fritte au contact du métal liquide, et on étale ce matériau de manière à constituer une couche semsiblement régulière, les parois intérieures du récipient étant initialement à une température suffisante pour pouvoir chauffer le matériau déposé sur celles-ci à une température permettant le ramollissement et la prise du liant de type thermodurcissable ou équivalent et la formation d'un revêtement monolithique (5) qui adhère aux parois intérieures du récipient.A metallurgical container (1) is placed on a suitable support, the interior walls to be coated are relatively hot; the support is tilted and the metallurgical container (1) is brought successively to several different positions in each of which an inner wall or part of the container wall is substantially horizontal and turned upwards; in each of the abovementioned positions, at least one layer of a substantially dry material comprising a mixture of refractory particles and a binder of the thermosetting type or equivalent, is spread over said wall or part of the interior wall, the composition and the particle size of the mixture of refractory particles being such that this mixture sintered in contact with the liquid metal, and this material is spread so as to constitute a semsibly regular layer, the interior walls of the container being initially at a temperature sufficient to be able to heat the material deposited thereon to a temperature allowing the softening and setting of the binder of the thermosetting type or equivalent and the formation of a monolithic coating (5) which adheres to the interior walls of the container.
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT90907161T ATE100364T1 (en) | 1989-04-26 | 1990-04-25 | METHOD AND DEVICE FOR MAKING A LINING ON THE INTERIOR SURFACES OF A METALLURGICAL VESSEL. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8905528A FR2646367B1 (en) | 1989-04-26 | 1989-04-26 | METHOD AND INSTALLATION FOR REALIZING A COATING ON THE INTERIOR WALLS OF A METALLURGICAL CONTAINER |
FR8905528 | 1989-04-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0422196A1 true EP0422196A1 (en) | 1991-04-17 |
EP0422196B1 EP0422196B1 (en) | 1994-01-19 |
Family
ID=9381146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90907161A Expired - Lifetime EP0422196B1 (en) | 1989-04-26 | 1990-04-25 | Process and installation for producing a lining on the internal walls of a metallurgical vessel |
Country Status (12)
Country | Link |
---|---|
US (1) | US5160692A (en) |
EP (1) | EP0422196B1 (en) |
KR (1) | KR940003901B1 (en) |
AU (1) | AU627585B2 (en) |
BR (1) | BR9006724A (en) |
CA (1) | CA2030787A1 (en) |
CS (1) | CS203890A3 (en) |
DE (1) | DE69006158T2 (en) |
ES (1) | ES2048492T3 (en) |
FR (1) | FR2646367B1 (en) |
HU (1) | HUT56750A (en) |
WO (1) | WO1990012666A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT399464B (en) * | 1992-03-05 | 1995-05-26 | Veitsch Radex Ag | DEVICE FOR TREATING AND FEEDING A MONOLITHIC CERAMIC MASS INTO A METALLURGICAL MELTING VESSEL |
KR100360976B1 (en) * | 1993-12-13 | 2003-03-03 | 민테크인터내쇼날인코포레이티드 | Spray Melting Furnace Repair System |
FR2728185A1 (en) | 1994-12-19 | 1996-06-21 | Daussan & Co | METHOD FOR APPLYING TO THE INNER SIDES OF A METALLURGICAL CONTAINER A PROTECTIVE COATING COMPRISING AT LEAST TWO LAYERS |
FR2732915B1 (en) * | 1995-04-14 | 1997-06-13 | Daussan & Co | PROCESS FOR APPLYING A PROTECTIVE COATING WITH AT LEAST TWO LAYERS INSIDE A METALLURGICAL CONTAINER |
US5885510A (en) * | 1997-02-07 | 1999-03-23 | Alcoa Chemie Gmbh | Methods of making refractory bodies |
US6165926A (en) * | 1998-06-24 | 2000-12-26 | Alcoa Chemie Gmbh | Castable refractory composition and methods of making refractory bodies |
US6268018B1 (en) * | 1999-02-09 | 2001-07-31 | Harbison-Walker Refractories Company | Method of applying a non-slumping pumpable castable high purity silica composition |
KR100484539B1 (en) * | 2002-08-01 | 2005-05-17 | 주식회사 포스렉 | Coating Agent for Slag Pot |
CN100453211C (en) * | 2007-06-22 | 2009-01-21 | 河北理工大学 | Method for preparing dry working lining |
CN101858694B (en) * | 2010-06-22 | 2011-11-16 | 武汉科技大学 | Die used for molding prefabricated furnace liner of induction furnace |
KR101526440B1 (en) * | 2013-11-08 | 2015-06-05 | 주식회사 포스코 | pot and method for manufacturing the pot |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3637412A (en) * | 1968-09-16 | 1972-01-25 | Combustion Eng | Ladle lining refractory |
CA1016962A (en) * | 1973-01-04 | 1977-09-06 | Crawford B. Murton | Applying a refractory lining on hot metallurgical containments |
FR2533492B1 (en) * | 1982-09-29 | 1986-06-13 | Gilson Jacques | METHOD AND INSTALLATION FOR MOLDING A REFRACTORY COATING OF A CONTAINER FOR LIQUID METAL |
US4696455A (en) * | 1984-10-30 | 1987-09-29 | Consolidated Ceramic Products, Inc. | Zircon and MgO preheatable insulating refractory liners and methods of use thereof |
FR2585273B1 (en) * | 1985-07-24 | 1988-05-13 | Daussan & Co | COATING FOR PROTECTING THE INTERIOR OF A METALLURGICAL CONTAINER AND METHOD FOR PRODUCING THE SAME |
BE1000516A6 (en) * | 1987-04-30 | 1989-01-10 | Centre Rech Metallurgique | Device for submit a protective coating on the inner wall of a metallurgical container. |
-
1989
- 1989-04-26 FR FR8905528A patent/FR2646367B1/en not_active Expired - Fee Related
-
1990
- 1990-04-24 CS CS902038A patent/CS203890A3/en unknown
- 1990-04-25 EP EP90907161A patent/EP0422196B1/en not_active Expired - Lifetime
- 1990-04-25 CA CA002030787A patent/CA2030787A1/en not_active Abandoned
- 1990-04-25 ES ES90907161T patent/ES2048492T3/en not_active Expired - Lifetime
- 1990-04-25 BR BR909006724A patent/BR9006724A/en unknown
- 1990-04-25 DE DE90907161T patent/DE69006158T2/en not_active Expired - Fee Related
- 1990-04-25 HU HU904258A patent/HUT56750A/en unknown
- 1990-04-25 US US07/623,907 patent/US5160692A/en not_active Expired - Fee Related
- 1990-04-25 WO PCT/FR1990/000297 patent/WO1990012666A1/en active IP Right Grant
- 1990-04-25 KR KR1019900702675A patent/KR940003901B1/en not_active IP Right Cessation
- 1990-04-25 AU AU56576/90A patent/AU627585B2/en not_active Ceased
Non-Patent Citations (1)
Title |
---|
See references of WO9012666A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2646367B1 (en) | 1994-04-01 |
KR920700082A (en) | 1992-02-19 |
HUT56750A (en) | 1991-10-28 |
EP0422196B1 (en) | 1994-01-19 |
HU904258D0 (en) | 1991-07-29 |
CS203890A3 (en) | 1992-11-18 |
CA2030787A1 (en) | 1990-10-27 |
DE69006158T2 (en) | 1994-05-05 |
US5160692A (en) | 1992-11-03 |
KR940003901B1 (en) | 1994-05-09 |
FR2646367A1 (en) | 1990-11-02 |
AU627585B2 (en) | 1992-08-27 |
DE69006158D1 (en) | 1994-03-03 |
WO1990012666A1 (en) | 1990-11-01 |
BR9006724A (en) | 1991-08-06 |
ES2048492T3 (en) | 1994-03-16 |
AU5657690A (en) | 1990-11-16 |
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