EP0416086A1 - Machine for the spraying of a coating comprising powder and/or fibrous products, process for the spraying of such coating and coating thus obtained. - Google Patents
Machine for the spraying of a coating comprising powder and/or fibrous products, process for the spraying of such coating and coating thus obtained.Info
- Publication number
- EP0416086A1 EP0416086A1 EP90905551A EP90905551A EP0416086A1 EP 0416086 A1 EP0416086 A1 EP 0416086A1 EP 90905551 A EP90905551 A EP 90905551A EP 90905551 A EP90905551 A EP 90905551A EP 0416086 A1 EP0416086 A1 EP 0416086A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- mixture
- coating
- spraying
- air
- 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
- 238000000576 coating method Methods 0.000 title claims abstract description 62
- 239000011248 coating agent Substances 0.000 title claims abstract description 53
- 238000005507 spraying Methods 0.000 title claims description 48
- 238000000034 method Methods 0.000 title claims description 15
- 230000008569 process Effects 0.000 title claims description 4
- 239000000843 powder Substances 0.000 title 1
- 239000000203 mixture Substances 0.000 claims abstract description 79
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 76
- 239000000463 material Substances 0.000 claims abstract description 33
- 239000007921 spray Substances 0.000 claims abstract description 24
- 239000003570 air Substances 0.000 claims abstract description 10
- 235000011837 pasties Nutrition 0.000 claims abstract description 4
- 239000002657 fibrous material Substances 0.000 claims description 21
- 238000007664 blowing Methods 0.000 claims description 17
- 239000000428 dust Substances 0.000 claims description 12
- 238000009736 wetting Methods 0.000 claims description 10
- 239000011253 protective coating Substances 0.000 claims description 8
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 210000001520 comb Anatomy 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 description 16
- 239000000835 fiber Substances 0.000 description 14
- 239000004568 cement Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000009749 continuous casting Methods 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010451 perlite Substances 0.000 description 2
- 235000019362 perlite Nutrition 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 241000212384 Bifora Species 0.000 description 1
- 206010016275 Fear Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
- 235000019354 vermiculite Nutrition 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
-
- 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
- F27D1/16—Making or repairing linings ; Increasing the durability of linings; Breaking away linings
- F27D1/1636—Repairing linings by projecting or spraying refractory materials on the lining
Definitions
- the present invention relates to a machine for continuously spraying a coating comprising large percentages of pulverulent and / or fibrous materials and intended to set after wetting with water, in particular a protective coating against fire or an insulating coating. thermal or phonic or acoustic, or an insulation and / or protective coating of the walls of a metallurgical container intended to receive liquid metal.
- the invention also relates to a method for spraying such a coating, as well as a coating obtained by using the aforementioned machine or method.
- machines of the kind above which generally comprise means for receiving the mixture of materials constituting the coating, means for conveying the mixture to the lower part of the machine, rotary means, forming an airlock and distributor, for distributing the mixture by gravity in a blowing chamber, blowing means for propelling the mixture by blowing air from the blowing chamber in a transport pipe to a projection tube at the end of which sprayed water is injected, or air and water spray, to make said mixture pasty to allow its projection and setting.
- the projection of a coating of the aforementioned types is accompanied, if one does not take corrective measures, of a very strong release of dust which, regardless of the inconvenience and nuisance for the personnel, can cause material losses and appreciable and harmful differences between the composition of the coating applied and that intended.
- One of the possible corrective measures consists in significantly increasing the proportion of water added before spraying. Such a measure effectively reduces the generation of dust, but the excessively wet mixture is too heavy and too fluid, and tends to flow along, or fall from, the wall on which it is applied, which considerably limits the '' thickness that can be applied at one time.
- the water used in too large quantity gives on evaporation a coating whose porosity is too important and can lead to the creation of cracks.
- a mixture containing, for example, a small amount of dedusting oil introduced during the preparation of this mixture containing, for example, a small amount of dedusting oil introduced during the preparation of this mixture.
- the percentage of oil added depends on the regulations in force, in particular in the case of fire protection coatings or protective coatings on the walls of metallurgical vessels, and never exceeds a few percentage points.
- this oil burns at high temperature on contact with liquid metal or in the event of a fire, and pollutes steel or the environment, which clearly reduces the characteristics of the protection provided by the coating in question.
- the object of the invention is to provide a machine of the aforementioned kind which overcomes the drawbacks of known machines and which allows spraying a coating comprising large percentages of pulverulent and / or fibrous materials and intended to set after wetting with water. , this coating not comprising or substantially no dusting oil without excessive dust generation, the amount of water corresponding substantially to the amount necessary to provide the mixing water for the materials and possibly the water of crystallization of hydraulic or chemical binders (silicate) of the coating.
- the spraying machine of the aforementioned kind is characterized in that it further comprises, between the receiving means and the projection tube (14), at least one sprayer of water, or air and of water, to pre-humidify the mixture.
- the Applicant has in fact noticed that it was possible to pre-humidify the mixture provided that it retains the characteristics of a dry or substantially dry product, that is to say in particular that the pulverulent and / or fibrous materials can remain in suspension in the blown air and do not exhibit any segregation liable to harm the homogeneity and uniformity of the mixture.
- the machine comprises several injectors of water spray, or air and water spray or air alone, distributed in the receiving means, and / or around the means for conveying the mixture to the bottom of the machine, and / or around the distribution means, and one or more air and / or water sprayers in the transport pipe.
- the end of the projection tubing is provided with a spreader plate capable of retaining the materials after rebounding and of limiting the emission of dust.
- This spreader tray promotes the application and intimate mixing of the various materials constituting the mixture with water and makes it possible both to reduce the emission of dust and the loss of material by rebound, and to reduce the amount of total water. used for the projection of the coating.
- the spreader plate comprises on at least one of its edges a flap or a roller with an axis parallel to this edge.
- the roller (s) and / or the flap (s) complete the action of the spreader plate on the sides of the spreader plate and add a "spreading" function and equalization of the projected coating.
- the method for spraying a coating comprising large percentages of pulverulent and / or fibrous materials and intended to set after wetting with water, in particular by means of a machine of the kind defined above.
- a machine of the kind defined above is characterized in that water spray or air and water spray are injected at at least one point on the machine to pre-humidify the mixture of materials, the quantity of water thus injected being less than the amount usually needed to spray and set the mixture.
- water spray or air and water spray are injected at several places on the machine and the mixture transport pipe and the quantity of water injected is optimized.
- the coating comprising large percentages of pulverulent and / or fibrous materials and intended to set after wetting with water and spraying, is characterized in that it is obtained by means of a spraying machine according to the invention and / or it is produced by a process according to the invention.
- Such a coating contains only a reduced amount, or does not contain, oil, has a predetermined porosity because it can be applied without using an excessive amount of water, does not flow along, or does not fall de, the wall on which it is projected, and can therefore be projected, in most cases, in one go with the necessary thickness. Due to the reduced dust emission rate, this coating has exactly the intended composition once in place.
- FIG. 1 is a schematic view in longitudinal section and with cutaway of a spraying machine according to one invention
- FIG. 2 is a sectional view along II-II of FIG. 1, the cover of the machine being partially open,
- FIG. 3 is a top view of a spreader plate according to one invention in position for applying a coating in a continuous casting distributor, shown partially in plan,
- FIG. 4 is a top view of the spreader plate of Figure 3;
- FIG. 5 is a sectional view, along VV in FIG. 3, of a spreader plate in service inside a continuous casting distributor, this plate being shown in a first position at rest on the bottom, and in a second position during projection of a coating on one of the side walls of the distributor;
- FIG. 6 is an axial sectional view of a vent of a spreader plate according to the invention, according to VI-VI in Figure 4;
- FIG. 7 is a view similar to Figure 4 of another embodiment of the spreader plate according to 1 * invention.
- FIG. 8 is a view similar to Figure 5 of a spreader plate according to another embodiment of the invention
- - Figure 9 is a view similar to Figure 8 of a spreader plate according to another embodiment of one invention.
- the spraying machine according to the invention is suitable for spraying coatings comprising large percentages of pulverulent and / or fibrous materials and intended to be sprayed after wetting with water, in particular coatings 1 fire protection or thermal or sound or acoustic protective coatings or protective coatings on the walls of a metallurgical container intended to receive liquid metal.
- It can for example spray coatings composed of a hydraulic binder such as for example cement, or chemical, such as for example a silicate and / or a resin, and / or refractory particles having a hydraulic effect and acting as a binder, and mineral and / or organic fibers whose nature is adapted to the function of the coating; the composition thereof can vary from 0.5% of binder and 99.5% of fibers, up to 0% of fibers and 100% of binder and other pulverulent and granular materials.
- the machine can in particular spray coatings composed of a binder and / or cement, fibers and pulverulent or granular materials such as perlite or vermiculite in the expanded or unexpanded state, the fibers possibly being, for example, wool. for insulating coatings.
- the amount of water can be adjusted to the strict amount necessary to supply the mixing water for the materials and in certain cases, the water of crystallization from the binders or from the hydraulic and / or chemical setting materials. .
- the spraying machine comprises a hopper 1 of substantially rectangular horizontal section inside which are mounted two parallel lumpers 2 rotating for example in opposite directions one of the other under the action of a motor not shown.
- Each of the lump breakers 2 has several blades 3 distributed over the along its axis and having, for example, each a different orientation on this axis.
- an Archimedes screw 4 is installed which can be driven by the same motor as the lump breakers 2.
- the screw 4 pushes the materials towards one of its ends up to a card 6 which, in the example shown, is mounted directly on the shaft 5 of the screw 4.
- the card 6 carries combs and / or fingers 7 diametrically opposed two two, which give the materials a downward movement.
- a pallet distributor 8 with a horizontal axis comprising for example from eight to twelve pallets 9 regularly distributed around its shaft and which are flush with the inner wall of the casing 10 of the distributor.
- the distributor 8 can also be driven by the same motor as the lump breakers 2 and the screw
- a blowing chamber 11 into which is introduced the blowing air produced by a blower 12 driven by a motor not shown.
- the spraying machine comprises a set of pipes 15, rigid in the example shown, equipped with j jets 16 of any known type arranged in various locations of the hopper 1, above the card 6 and into the distributor 8.
- These pipes 15 and sprayers 16 make it possible to inject water or, preferably, a mixture of air and water in order to prehumidify the mixture.
- flexible piping 15a accompanies the flexible pipe 13 for transporting the mixture, and supplies water, or a mixture of air and water, one or more spray nozzles 17 of known type arranged substantially in the axis of the pipe 13.
- the nozzles can be of the type whose walls are cut in the shape of a corkscrew.
- a nozzle 18 of known type placed at the end of the spray tube 14.
- a nozzle 18 can comprise in known manner, at the periphery of the tubing, radially directed openings or openings directed along certain generators of a cone converging downstream of the nozzle, or, in the axis of the tubing, a simple injector or a nozzle, the walls of which are cut in the form of a corkscrew.
- the upper part of the hopper 1 can be closed by a sealed cover 19 which pivots about an axis 20.
- the cover 19 is, in its closed position, locked to the hopper 1 by any known means not shown which allow operation of the pressurized machine.
- a spreader plate 21 is fixed to the projection nozzle 18 of the projection tube 14.
- Figures 3 and 5 show a spreader plate 21 according to the invention in use on the side walls 22 and 23 and on the bottom 24 of a continuous casting distributor 25, the spreader plate 21 serving to form above the coating permanent 26 of this distributor 25 a wear coating 27.
- the spreader plate 21 has a trapezoidal shape, particularly suitable for the execution of the wear coating 27 on the inclined side walls 22 and 23 of the distributor 25.
- the spreader plate 21 has on two of its adjacent sides a flexible flap 28 which retains the bouncing materials and the dust.
- the flexible flaps 28 are for example made of rubber or plastic, are fixed in any known manner on the plate 21 and protrude perpendicularly to the latter in the direction of the surface to be coated.
- the flaps 28 have, of course, a height substantially equal to or greater than the thickness of the coating 27 to be applied.
- the spreader plate 21 is traversed substantially at its center by the projection nozzle 18. It can also be crossed by one or more vents 29, two in number in the example shown, comprising for example a valve 30 returned to its seat in the direction of the surface to be coated with a spring 31 (see FIG. 6), which facilitates the evacuation of the air for transporting and projecting the mixture.
- a figure 5 shows, on the one hand a spreader plate
- the spreader plate 21 has a rectangular shape, and carries flaps 28 on its four sides.
- the spreader plate 21 has a rectangular shape. It is equipped on two of its opposite sides with rollers 32 which rotate freely around their respective axes, which are parallel to said sides.
- the axes of the two rollers 32a, 32b are fixed but are located at different distances from the surface 21a of the spreader plate 21 facing the wall to be coated 33.
- the roller 32a called front roller, is intended to roll on the wall 33 and maintains the surface 21a at a distance from the latter constant and substantially equal to or slightly greater than the thickness of the coating which it is desired to apply to this wall.
- the rear roller 32b has the function of spreading and leveling the projected materials, and is intended to roll over the coating in place.
- a flap 28 is fixed to the plate 21 beyond the rear roller 32b.
- the axes of the two rollers 32c are movable * in the direction perpendicular to the plate 21.
- Each of the ends of these axes is carried by a rod 34 perpendicular to the plate 21 and which can slide in its longitudinal direction between the two branches of a U-shaped support 35.
- a stop 36 integral with the rod 34 limits the movement in each direction thereof.
- a spring 37 recalls the rod 34 and the roller 32c towards the wall to be coated 33.
- roller 32c indicated on the left in FIG. 9 is, for example, intended to roll on the wall to be coated 33, the other roller 32c being intended to roll on the coating applied for the spread and equalize.
- a flap 28 is provided behind this second roller 32c acting as a rear roller.
- the mode of operation in steady state of the machine shown in Figures 1 and 2 is as follows.
- the mixture to be sprayed into the hopper 1 is returned by the blades 3 of the lump breakers 2, then conveyed by the screw 4 to the card 6 whose fingers 7 roughly separate the fibers and give the mixture a downward movement.
- the vane distributor 8 brings into the blowing chamber 11 a substantially constant flow of mixture which is carried in the transport pipe 13 by the blowing air coming from the blower 12.
- the machine shown in FIGS. 1 and 2 can in particular, with its card 6 and its vane distributor 8, spray coatings comprising extremely large percentages of fibrous materials: these percentages can greatly exceed 50% by weight and reach the above-mentioned upper limit of 99.5%.
- spray coatings comprising extremely large percentages of fibrous materials: these percentages can greatly exceed 50% by weight and reach the above-mentioned upper limit of 99.5%.
- it is thus possible to spray without any dust a mixture containing a large proportion of pulverulent and / or fibrous materials without having to add to this mixture neither dedusting oil liable to burn and pollute, nor a excess water causing excessive porosity and fluidity of the sprayed mixture, the quantity of water used being able to be strictly equal to that necessary for the mixing water of the mixture and possibly for the water of crystallization of the hydraulic setting materials and / or chemical mixture.
- a spreader plate 21 fixed to the end of the projection tube 14 is used beyond the projection nozzle 18, there is a considerable limitation of the material rebounds, and possibly of the emission of dust.
- the spraying machine can have a conical hopper, not a parallelepiped, a scraper arm provided with fingers moving along a conical path along the inner wall of the hopper, the latter being able to be provided at its base with a vertical axis comb forming a card, or other suitable agitating mechanism.
- a vane distributor with a barrel distributor, also known as rotor distributor, known per se: a rotor with vertical axis, arranged at the lower part of the hopper, comprises several rotor chambers which pass successively, when the rotor rotates, under an inlet orifice through which the mixture to be sprayed arrives in the rotor chamber, then above an outlet orifice opening into the blowing chamber from which the material is propelled into the transport pipe by the blowing air.
- barrel or rotor distributors are not suitable for the projection of mixtures containing very high quantities of fibers. These amounts of fiber naturally depend very much on the nature and dimensions of the fibers, but can hardly exceed percentages of the order of about 50% by weight.
- injectors 16 and spray nozzles 17 can be modified, these can be individually adjustable or not.
- a prehumidifier comprising means for receiving the mixture to be sprayed, means for conveying this mixture, such as one or more Archimedes screws or blades, and one or more sprayers water, or air and water.
- a prehumidifier can naturally supply the spraying machine, either directly by pouring the prehumidified mixture into the hopper of the machine, or indirectly with load break and resumption of the prehumidified mixture, the prehumidifier can then operate to supply several spraying machines.
- he spreader tray can be equipped with rollers and / or flaps in variable number, have any shape, be handled by a worker, by hand, or by a robot equipped with any means making it possible to maintain said tray at a constant distance from the wall to be coated.
- the flaps can also be made of a metal sheet, flexible or not.
- the spreader plate may not include vents, or may include vents of a type other than that described.
- the end of the projection tubing can be provided with a flexible pipe section with a length for example of a few tens of centimeters, preferably around thirty, to which one could communicate, by properly shaking the tubing, gyratory and / or pendulum movements facilitating the projection of the coating.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
La machine comprend des moyens (1) de réception du mélange des matières constituant le revêtement, des moyens (6) pour acheminer le mélange vers le bas de la machine, des moyens formant sas (8) pour distribuer le mélange vers une canalisation de transport (13) dans laquelle le mélange est propulsé pneumatiquement jusqu'à une tubulure de projection (14) dans laquelle sont injectés de l'eau pulvérisée, ou de l'air et de l'eau pulvérisée, pour rendre le mélange pâteux afin de permettre sa projection et sa prise. Elle comporte en outre au moins un pulvérisateur (16) d'eau, ou d'air et d'eau, pour préhumidifier le mélange, la quantité d'eau injectée à ce stade étant réglée pour que le mélange conserve les caractéristiques d'un produit sensiblement sec.The machine comprises means (1) for receiving the mixture of the materials constituting the coating, means (6) for conveying the mixture to the bottom of the machine, means forming an airlock (8) for distributing the mixture to a transport pipe. (13) into which the mixture is pneumatically propelled up to a projection tube (14) into which water spray is injected, or air and water spray, to make the mixture pasty in order to allow its projection and its capture. It further comprises at least one sprayer (16) of water, or air and water, for pre-humidifying the mixture, the quantity of water injected at this stage being adjusted so that the mixture retains the characteristics of a substantially dry product.
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT90905551T ATE91928T1 (en) | 1989-03-24 | 1990-03-21 | DEVICE AND METHOD FOR EJECTING A COATING OF POWDERY AND/OR FIBROUS MATERIALS AND THE COATING OBTAINED IN THIS WAY. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8903899A FR2644712B1 (en) | 1989-03-24 | 1989-03-24 | MACHINE FOR PROJECTING A COATING COMPRISING POWDERY AND / OR FIBROUS MATERIALS, METHOD FOR PROJECTING SUCH A COATING AND THE COATING THUS OBTAINED |
| FR8903899 | 1989-03-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0416086A1 true EP0416086A1 (en) | 1991-03-13 |
| EP0416086B1 EP0416086B1 (en) | 1993-07-28 |
Family
ID=9380035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90905551A Expired - Lifetime EP0416086B1 (en) | 1989-03-24 | 1990-03-21 | Machine for the spraying of a coating comprising powder and/or fibrous products, process for the spraying of such coating and coating thus obtained |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0416086B1 (en) |
| KR (1) | KR920700080A (en) |
| AU (1) | AU616114B2 (en) |
| BR (1) | BR9005966A (en) |
| CA (1) | CA2029904A1 (en) |
| DE (1) | DE69002423T2 (en) |
| FR (1) | FR2644712B1 (en) |
| HU (1) | HUT58574A (en) |
| WO (1) | WO1990011153A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4240287C1 (en) * | 1992-12-01 | 1994-02-17 | Veitsch Radex Ag | Device and method for applying a refractory insulating compound to the wall of a metallurgical vessel |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB844467A (en) * | 1957-10-03 | 1960-08-10 | Internat Meehanite Metal Compa | Improvements relating to apparatus for applying repair material to furnace linings |
| US3229970A (en) * | 1964-03-02 | 1966-01-18 | Harbison Walker Refractories | Metallurgical furnace lining |
| DE2617459C3 (en) * | 1976-04-21 | 1981-02-19 | Kurosaki Refractories Co., Ltd., Kitakyushu, Fukuoka (Japan) | Apparatus for applying a refractory lining to the inner surface of a furnace |
| AT361150B (en) * | 1979-02-20 | 1981-02-25 | Frings Hermann H | DEVICE FOR LINING VESSELS OF METALLURGY WITH PAMPING MATERIALS |
| FR2619323B2 (en) * | 1987-04-03 | 1989-12-29 | Daussan & Co | METHOD AND INSTALLATION FOR PROJECTING A MULTILAYER INSULATING AND REFRACTORY COVERING AND COATING THUS OBTAINED |
-
1989
- 1989-03-24 FR FR8903899A patent/FR2644712B1/en not_active Expired - Fee Related
-
1990
- 1990-03-21 BR BR909005966A patent/BR9005966A/en unknown
- 1990-03-21 HU HU902948A patent/HUT58574A/en unknown
- 1990-03-21 DE DE90905551T patent/DE69002423T2/en not_active Expired - Fee Related
- 1990-03-21 CA CA002029904A patent/CA2029904A1/en not_active Abandoned
- 1990-03-21 WO PCT/FR1990/000189 patent/WO1990011153A1/en not_active Ceased
- 1990-03-21 AU AU53464/90A patent/AU616114B2/en not_active Ceased
- 1990-03-21 EP EP90905551A patent/EP0416086B1/en not_active Expired - Lifetime
- 1990-11-23 KR KR1019900702505A patent/KR920700080A/en not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9011153A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| BR9005966A (en) | 1991-08-06 |
| WO1990011153A1 (en) | 1990-10-04 |
| FR2644712B1 (en) | 1993-05-07 |
| HU902948D0 (en) | 1991-07-29 |
| AU5346490A (en) | 1990-10-22 |
| DE69002423T2 (en) | 1994-02-03 |
| DE69002423D1 (en) | 1993-09-02 |
| AU616114B2 (en) | 1991-10-17 |
| FR2644712A1 (en) | 1990-09-28 |
| CA2029904A1 (en) | 1990-09-25 |
| KR920700080A (en) | 1992-02-19 |
| EP0416086B1 (en) | 1993-07-28 |
| HUT58574A (en) | 1992-03-30 |
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