WO2024105247A1 - Four verrier électrique - Google Patents
Four verrier électrique Download PDFInfo
- Publication number
- WO2024105247A1 WO2024105247A1 PCT/EP2023/082229 EP2023082229W WO2024105247A1 WO 2024105247 A1 WO2024105247 A1 WO 2024105247A1 EP 2023082229 W EP2023082229 W EP 2023082229W WO 2024105247 A1 WO2024105247 A1 WO 2024105247A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrodes
- glass furnace
- glass
- phase
- bath
- 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.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/02—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
- C03B5/027—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by passing an electric current between electrodes immersed in the glass bath, i.e. by direct resistance heating
- C03B5/03—Tank furnaces
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/02—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
- C03B5/027—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by passing an electric current between electrodes immersed in the glass bath, i.e. by direct resistance heating
- C03B5/03—Tank furnaces
- C03B5/031—Cold top tank furnaces
Definitions
- the present invention belongs to the general field of glass production. It relates more particularly to an at least partly electric glass furnace adapted for the fusion of vitrifiable materials. It also relates to a process for melting vitrifiable materials so as to be able to manufacture glass.
- the invention finds a particularly advantageous application, although in no way limiting, in the production of glass wool, rock wool, textile glass threads and/or flat or hollow glass.
- the term "vitrifiable materials”, or “raw materials”, is understood to mean all materials, natural ores or synthesized products, materials resulting from recycling of the cullet type, etc., which can be used in the composition used to supply a furnace glassmaker.
- recyclable materials containing (organic) combustible elements such as, for example, sized mineral fibers with binder (of the type used in thermal or acoustic insulation or those used in plastic reinforcement), laminated glazing with polyvinyl butyral type polymer sheets such as windshields, glass bottles (household cullet), or any type of “composite” material combining glass and plastic materials such as certain bottles.
- “Glass-metal composites or metal compounds” such as glazing functionalized with coatings containing metals are also recyclable.
- the “bath of vitrifiable materials” or “glass bath” designates the product of the fusion of these raw materials.
- glass means glass in the broad sense, that is to say encompassing any material with a vitreous, glass-ceramic or ceramic matrix.
- the term "manufacturing” includes the essential melting step of the vitrifiable materials and, where applicable, all subsequent/complementary steps aimed at refining/conditioning the molten glass with a view to its final shaping, in particular in the form of flat glass (glazing), hollow glass (flasks, bottles), glass in the form of mineral wool (in particular rock wool or glass wool) used for its thermal or sound insulation properties, or even possibly of glass in the form of so-called textile threads used in reinforcement.
- mineral wool in particular rock wool or glass wool
- diving electrodes have a number of advantages. First of all, they of course avoid the difficulties linked to the passage of immersed electrodes through the refractory of the base or side walls, and, also, the problems of replacing these electrodes when worn, as well as sealing problems. of the melting tank or even wear of the refractories, in particular due to a high temperature which favors the attack of the refractory and to powerful convection currents which develop near the electrodes during operation.
- these diving electrodes are supplied with three-phase current.
- Three-phase current has many advantages, first and foremost the fact that it is the so-called “industrial” current which is commonly distributed to factories by energy suppliers, hence the resulting adaptation of machines.
- Three-phase current also delivers instantaneous power without a pulsed component unlike, for example, single-phase current. Note, however, that the principle of phase equilibrium tends to implement a triangular or hexagonal arrangement of the electrodes on the surface of the glass bath.
- the present invention aims to remedy all or part of the disadvantages of the prior art, in particular those set out above.
- the invention relates to a glass furnace at least partly electric, comprising a melting tank made of refractory materials adapted to contain a bath of molten vitrifiable materials and a plurality of plunging heating electrodes , which are immersed from the free surface of said bath and supplied with electric current by an electrical installation, said oven being characterized in that said electrical installation is adapted to generate a two-phase alternating current.
- two-phase alternating current designates a system with two phases of the same frequency and the same amplitude which are in quadrature, that is to say out of phase with each other by 90° or ⁇ /2 radians.
- a two-phase system offers a glass furnace designer the possibility of moving the electrodes powered by the same phase further apart, for example by positioning them near opposite edges of the melting tank.
- the resistance generated by the glass bath — which increases with the distance traveled by the current within it – is greater, which implies a reduction in electrical intensity to be delivered. It is then possible to distribute this intensity between a reduced number of electrodes and/or to limit the intensity delivered to each electrode, which makes it possible to increase their lifespan.
- said electrical installation comprises at least one two-phase transformer adapted to generate two groups of single-phase output with a phase difference of 90° between each output group, each output group supplying at least one pair of said electrodes.
- an output group designates a set of outputs of the two-phase transformer which are in phase matching.
- an output group comprises only a single output which is connected to a plurality of pairs of electrodes (three in the embodiment illustrated in ), which it supplies with single-phase alternating current.
- At least one output group of said at least one two-phase transformer supplies a bundle of at least two electrode pairs, preferably three electrode pairs.
- At least one output group of said at least one two-phase transformer comprises one or more outputs.
- an output group comprises several outputs, connected for example in parallel, each output being connected to one or more pairs of electrodes.
- the single-phase current delivered to each of these electrodes is in phase matching.
- each bundle of electrodes is arranged in the bath of molten vitrifiable materials so as to respect central symmetry along a theoretical horizontal plane.
- Respecting such axial symmetry makes it possible to obtain a more uniform distribution of current between the electrodes, and therefore to limit the probability of seeing one of these electrodes wear out more quickly than the others.
- the electrodes of the same output group are arranged near opposite walls of the tank.
- This advantageous geometric arrangement of the pairs of electrodes is particularly suited to the two-phase regime, in which the distance between electrodes connected to the two terminals of the same group of outputs can be increased without the risk of seeing electrodes placed close to the same wall. exchange with each other.
- said pairs of electrodes supplied by the same two-phase transformer are arranged in a quadrilateral according to a theoretical horizontal plane, preferably in a rectangle, preferably in a square, in the bath of molten vitrifiable materials.
- This advantageous geometric arrangement of the pairs of electrodes is particularly suited to the two-phase regime, and makes it possible to balance the intensities.
- Such a quadrilateral arrangement contrasts in particular with the arrangements of triangular or hexagonal shapes, which are specific to three-phase systems.
- the minimum distance between each electrode and the wall of the nearest tank is greater than 450 mm, preferably greater than 600 mm, preferably greater than 800 mm, preferably greater than 950 mm, preferably greater than 1075 mm.
- such a minimum distance is measured according to the normal to the wall of the tank closest to the electrode, and which passes through the latter. Note that the convection movements of the glass bath generated near each electrode tend to corrode the adjoining wall of the tank. The distance of the electrode from the tank therefore makes it possible to limit this premature wear of the tank wall.
- each of said electrodes comprises a horizontal projection arm, preferably of square section, whose horizontal extent is greater than 2000 mm, preferably greater than 2500 mm, preferably greater than 3000 mm, preferably greater than 3500 mm , preferably greater than 3700 mm, preferably greater than 3900 mm.
- a square section electrode arm gives the latter better resistance to bending. This is all the more useful as the electrode arm is long.
- a long electrode arm in particular makes it possible to move the electrode further away from the adjoining tank wall, in order to limit wear of the latter.
- This distance of the electrode from the wall of the tank is all the more advantageous in the event of an increase in the power of the oven. Indeed, the power depends on the voltage and the current, these two parameters are then adjusted with increasing values with the increase in power. This results in an intensification of the convection movements of the glass bath generated near each electrode which tend to corrode the adjoining wall of the tank. Moving the electrode away from the tank wall limits this premature wear of the tank wall.
- said electrical installation is adapted so that all the pairs of electrodes connected to the same output group of said two-phase transformer are supplied with an electric current of the same voltage.
- the glass furnace is completely electric, and preferably comprises a cold vault (5).
- a furnace is said to be “totally electric” in the sense that all of the heating energy supplied to the glass bath is of an electrical nature. Such an oven is thus devoid of heating burners.
- the glass furnace comprises a plurality of said two-phase transformers, preferably three.
- the implementation of a plurality of two-phase transformers is particularly suitable for supplying electricity to large ovens, for which the implementation of a two-phase system is particularly advantageous.
- said melting tank is sized so that said bath of molten vitrifiable materials has a surface area greater than 25 m2, preferably greater than 40 m2, preferably greater than 60 m2, preferably greater than 100 m2 , and preferably presents between two opposite walls of said tank a distance greater than 5 m, preferably greater than 6.5 m.
- Such dimensions relate to so-called large electric ovens, for which the implementation of a two-phase system is particularly advantageous.
- the first obstacle is the need for greater electrical power for the fusion of vitrifiable materials. This greater electrical power leads to an increase in current and voltage values at the electrodes, an intensification of the convection movements of the glass bath generated near each electrode which tend to corrode the adjoining wall of the tank.
- the second obstacle is that if the area of these ovens is large, it results in a basin with a greater length and width. It is therefore necessary to be able to provide heating energy at any point, including the center of the oven, the area farthest from the wall.
- the present invention solves these obstacles by synergistically combining the use of a two-phase system with arms whose horizontal extent is greater than 2000 mm, preferably greater than 2500 mm, preferably greater than 3000 mm, preferably greater than 3500 mm, preferably greater than 3700 mm, preferably greater than 3900 mm.
- This synergy is based on the fact that a two-phase system allows, at a given power, to have less current at the electrodes than a three-phase system. We then understand that it is possible to obtain, for an identical current, a higher power. This possibility of having greater power or even greater current is associated with arms having a greater horizontal extent.
- the number of electrodes per square meter is between 0.1 and 0.45, preferably between 0.15 and 0.4 and even more preferably between 0.2 and 0.35.
- these so-called large ovens are obtained by adding several elementary modules.
- an elementary module is the equivalent of an oven whose tank has a length and width of a defined value, this elementary module comprising a series of heating electrodes having a defined arrangement.
- the elementary module has a square shape.
- a so-called large oven then comprises at least two elementary modules arranged contiguously, that is to say it comprises a tank whose dimensions in length and width are multiples of the defined value of the elementary module. It is then possible to simply obtain a so-called large oven, this oven being able to have various shapes such as a rectangular, square, L or T shape.
- said two-phase transformer supplies a number of electrodes less than or equal to 16, preferably less than or equal to 12, preferably less than or equal to 8.
- each output group supplies two times four electrodes, two times three electrodes or two times two electrodes
- the total number of electrodes supplied by the same two-phase transformer thus varies respectively between 16, 12 and 8 electrodes.
- the two-phase system offers the possibility of reducing the number of electrodes used in the oven.
- the invention relates to a process for melting vitrifiable materials implemented by means of such a glass furnace, characterized in that it comprises at least one step of electrical heating of said bath of materials vitrifiable in fusion by means of said plurality of electrodes, and by application within said bath of a two-phase alternating current.
- all the pairs of electrodes connected to the same output group of said two-phase transformer are supplied with an electric current of the same voltage.
- the invention relates to a process for manufacturing glass wool, rock wool, textile glass threads and/or flat or hollow glass, characterized in that it implements such a fusion process.
- Such a glass furnace 1 comprises a melting tank 2 made of refractory materials adapted to contain a bath 3 of molten vitrifiable materials and a plurality of electrodes (An, Bn, Cn, Dn) immersion heaters (only one is shown on the , for purposes of simplification), whose arms are of square section, and which are immersed from the free surface of said bath 3 and supplied with electric current by an electrical installation 4.
- the part of the electrode in contact with the glass bath is composed of molybdenum.
- a glass furnace 1 according to the invention is in particular characterized in that said electrical installation 4 is adapted to generate a two-phase alternating current.
- oven 1 is completely electric and is equipped with a cold top 5.
- said electrical installation comprises a two-phase transformer 6 adapted to generate two single-phase output groups (AB, CD) with a phase difference of 90° between each output group (AB, CD).
- the electrode bundles are arranged in the bath 3 in a substantially square shape and so as to respect central symmetry along a theoretical horizontal plane, with respect to a point O located in the center of the bath 3.
- the single-phase current delivered to each of these electrodes is in phase matching.
- a first single-phase current is generated by the transformer 6 at the terminals of a first output group A-B and passes through the glass bath between the electrodes A1, A2, A3 on the one hand, and the electrodes B1, B2, B3 on the other hand, thus heating the bath 3 of vitrifiable materials by the Joule effect.
- a second single-phase current of the same frequency and the same amplitude as the first current, but phase shifted by 90° or ⁇ /2 radians with respect to the latter, is generated by the transformer 6 at the terminals of a second group of outlet C-D and passes through the glass bath between the electrodes C1, C2, C3 on the one hand, and the electrodes D1, D2, D3 on the other hand, thus heating the bath 3 of vitrifiable materials by the Joule effect.
- the electrical installation 6 is thus adapted to generate a two-phase alternating current within the glass bath 3.
- the electrical installation only includes a two-phase transformer 6 which supplies a “block” of electrodes (An, Bn, Cn, Dn).
- the electrical installation comprises a plurality of two-phase transformers which respectively supply a plurality of electrode blocks covering the surface of the glass bath 3.
- FIG. 1 There is a flow diagram illustrating the successive stages of a manufacturing process according to a particular embodiment of the invention, which comprises a first step S1 of melting vitrifiable materials by electrical heating of said bath 3 of vitrifiable materials by means of a two-phase alternating current, and a second step S2 of manufacturing glass wool, rock wool, textile glass threads and/or flat or hollow glass.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
- Resistance Heating (AREA)
- Furnace Details (AREA)
Abstract
Description
Claims (18)
- Four verrier (1) au moins en partie électrique, comprenant une cuve (2) de fusion en matériaux réfractaires adaptée pour contenir un bain (3) de matières vitrifiables en fusion et une pluralité d’électrodes (An, Bn, Cn, Dn) de chauffage plongeantes, qui sont immergées à partir de la surface libre dudit bain (3) et alimentées en courant électrique par une installation électrique (4), ledit four (1) étant caractérisé en ce que ladite installation électrique (4) est adaptée pour générer un courant alternatif diphasé.
- Four verrier (1) selon la revendication 1, caractérisé en ce que ladite installation électrique comprend au moins un transformateur diphasé (6) adapté pour générer deux groupes de sortie (A-B, C-D) monophasée avec une différence de phase de 90° entre chaque groupe de sortie (A-B, C-D), chaque groupe de sortie (A-B, C-D) alimentant au moins une paire ((An ; Bn) ; (Cn ; Dn)) desdites électrodes.
- Four verrier (1) selon la revendication 2, caractérisé en ce qu’au moins un groupe de sortie (A-B, C-D) dudit au moins un transformateur diphasé (6) alimente un faisceau d’au moins deux paires électrodes ((An ; Bn) ; (Cn ; Dn)), préférentiellement trois paires électrodes ((An ; Bn) ; (Cn ; Dn)).
- Four verrier (1) selon l’une des revendications 2 et 3, caractérisé en ce qu’au moins un groupe de sortie (A-B, C-D) dudit au moins un transformateur diphasé (6) comprend une ou plusieurs sorties.
- Four verrier (1) selon l’une des revendications 3 et 4, caractérisé en ce que chaque faisceau d’électrodes ((An ; Bn) ; (Cn ; Dn)) est agencé dans le bain (3) de matières vitrifiables en fusion de manière à respecter une symétrie centrale selon un plan théorique horizontal.
- Four verrier (1) selon l’une des revendications 2 à 5, caractérisé en ce que les électrodes d’un même groupe de sortie (A-B, C-D) sont agencées à proximité de parois opposées de la cuve (2).
- Four verrier (1) selon l’une des revendications 2 à 6, caractérisé en ce que lesdites paires ((An ; Bn) ; (Cn ; Dn)) d’électrodes alimentées par un même transformateur diphasé (6) sont agencées en quadrilatère selon un plan théorique horizontal, préférentiellement en rectangle, préférentiellement en carré, dans le bain (3) de matières vitrifiables en fusion.
- Four verrier (1) selon l’une des revendications 1 à 7, caractérisé en ce que la distance minimale (dmin) entre chaque électrode (An, Bn, Cn, Dn) et la paroi de la cuve (2) la plus proche est supérieure à 450 mm, préférentiellement supérieure à 600 mm, préférentiellement supérieure à 800 mm, préférentiellement supérieure à 950 mm, préférentiellement supérieure à 1075 mm.
- Four verrier (1) selon l’une des revendications 1 à 8, caractérisé en ce que chacune desdites électrodes (An, Bn, Cn, Dn) comprend un bras de projection horizontale, préférentiellement de section carrée, dont l’étendue horizontale est supérieure à 2000 mm, préférentiellement supérieure à 2500 mm, préférentiellement supérieure à 3000 mm, préférentiellement supérieure à 3500 mm, préférentiellement supérieure à 3700 mm, préférentiellement supérieure à 3900 mm.
- Four verrier (1) selon l’une des revendications 2 à 9, caractérisé en ce que ladite installation électrique (4) est adaptée de sorte que toutes les paires d’électrodes connectées à un même groupe de sortie (A-B, C-D) dudit transformateur diphasé (6) sont alimentées en un courant électrique de même tension.
- Four verrier (1) selon l’une des revendications 1 à 10, caractérisé en ce qu’il est totalement électrique, et comprend préférentiellement une voûte froide (5).
- Four verrier (1) selon l’une des revendications 2 à 11, caractérisé en ce qu’il comprend une pluralité desdits transformateurs diphasés (6), préférentiellement trois.
- Four verrier (1) selon l’une des revendications 1 à 12, caractérisé en ce que ladite cuve (2) de fusion est dimensionnée de sorte que ledit bain (3) de matières vitrifiables en fusion présente en surface une aire supérieure à 25 m², préférentiellement supérieure à 40 m², préférentiellement supérieure à 60 m², préférentiellement supérieure à 100 m², et présente préférentiellement entre deux parois opposées de ladite cuve (2) une distance supérieure à 5 m, préférentiellement supérieure à 6,5 m.
- Four verrier (1) selon l’une des revendications 2 à 13, caractérisé en ce que ledit transformateur diphasé (6) alimente un nombre d’électrodes inférieur ou égal à 16, préférentiellement inférieur ou égal à 12, préférentiellement inférieur ou égal à 8.
- Four verrier (1) selon l’une des revendications 2 à 13, caractérisé en ce que le nombre d’électrodes par mètre carré est compris entre 0.1 et 0.45, de préférence entre 0.15 et 0.4 et encore plus de préférence entre 0.2 et 0.35.
- Procédé de fusion de matières vitrifiables mis en œuvre au moyen d’un four verrier (1) selon l’une des revendications 1 à 15, caractérisé en ce qu’il comprend au moins une étape de chauffage électrique dudit bain (3) de matières vitrifiables en fusion au moyen de ladite pluralité d’électrodes (An, Bn, Cn, Dn), et par application au sein dudit bain (3) d’un courant alternatif diphasé.
- Procédé de fusion de matières vitrifiables selon la revendication 16 mis en œuvre au moyen d’un four verrier (1) selon la revendication 10, caractérisé en ce que toutes les paires ((An ; Bn) ; (Cn ; Dn)) d’électrodes connectées à un même groupe de sortie (A-B, C-D) dudit transformateur diphasé (6) sont alimentées en un courant électrique de même tension.
- Procédé de fabrication de laine de verre, de laine de roche, de fils de verre textile et/ou de verre plat ou creux, caractérisé en ce qu’il met en œuvre un procédé de fusion selon l’une des revendications 16 et 17.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2023381471A AU2023381471A1 (en) | 2022-11-18 | 2023-11-17 | Electric glass-making furnace |
| KR1020257019656A KR20250110871A (ko) | 2022-11-18 | 2023-11-17 | 전기 유리 제조 퍼니스 |
| JP2025528703A JP2026500010A (ja) | 2022-11-18 | 2023-11-17 | 電気ガラス製造炉 |
| EP23809527.7A EP4619348A1 (fr) | 2022-11-18 | 2023-11-17 | Four verrier électrique |
| CN202380079526.0A CN120303219A (zh) | 2022-11-18 | 2023-11-17 | 电气玻璃制造熔炉 |
| MX2025005683A MX2025005683A (es) | 2022-11-18 | 2025-05-15 | Horno electrico de fabricacion de vidrio |
| CONC2025/0007854A CO2025007854A2 (es) | 2022-11-18 | 2025-06-12 | Horno eléctrico de fabricación de vidrio |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2211995A FR3142185B1 (fr) | 2022-11-18 | 2022-11-18 | Four verrier électrique |
| FRFR2211995 | 2022-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024105247A1 true WO2024105247A1 (fr) | 2024-05-23 |
Family
ID=85278350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2023/082229 Ceased WO2024105247A1 (fr) | 2022-11-18 | 2023-11-17 | Four verrier électrique |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP4619348A1 (fr) |
| JP (1) | JP2026500010A (fr) |
| KR (1) | KR20250110871A (fr) |
| CN (1) | CN120303219A (fr) |
| AR (1) | AR131104A1 (fr) |
| AU (1) | AU2023381471A1 (fr) |
| CL (1) | CL2025001462A1 (fr) |
| CO (1) | CO2025007854A2 (fr) |
| FR (1) | FR3142185B1 (fr) |
| MX (1) | MX2025005683A (fr) |
| WO (1) | WO2024105247A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025233360A1 (fr) * | 2024-05-07 | 2025-11-13 | Saint-Gobain Isover | Four verrier électrique |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2599734A1 (fr) * | 1986-06-06 | 1987-12-11 | Saint Gobain Rech | Technique de fusion electrique du verre |
| EP0671116B1 (fr) | 1993-09-30 | 2003-07-02 | Saint-Gobain Isover | Dispositif pour la fusion electrique |
-
2022
- 2022-11-18 FR FR2211995A patent/FR3142185B1/fr active Active
-
2023
- 2023-11-17 AR ARP230103106A patent/AR131104A1/es unknown
- 2023-11-17 CN CN202380079526.0A patent/CN120303219A/zh active Pending
- 2023-11-17 AU AU2023381471A patent/AU2023381471A1/en active Pending
- 2023-11-17 EP EP23809527.7A patent/EP4619348A1/fr active Pending
- 2023-11-17 KR KR1020257019656A patent/KR20250110871A/ko active Pending
- 2023-11-17 WO PCT/EP2023/082229 patent/WO2024105247A1/fr not_active Ceased
- 2023-11-17 JP JP2025528703A patent/JP2026500010A/ja active Pending
-
2025
- 2025-05-15 MX MX2025005683A patent/MX2025005683A/es unknown
- 2025-05-16 CL CL2025001462A patent/CL2025001462A1/es unknown
- 2025-06-12 CO CONC2025/0007854A patent/CO2025007854A2/es unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2599734A1 (fr) * | 1986-06-06 | 1987-12-11 | Saint Gobain Rech | Technique de fusion electrique du verre |
| EP0671116B1 (fr) | 1993-09-30 | 2003-07-02 | Saint-Gobain Isover | Dispositif pour la fusion electrique |
Non-Patent Citations (2)
| Title |
|---|
| "Glass Furnaces Design Construction and Operation", 31 December 1987, SOCIETY OF GLASS TECHNOLOGY SHEFFIELD, ISBN: 978-0-900682-20-9, article TRIER WOLFGANG: "Electrode circuits", pages: 201 - 206, XP093047114 * |
| REYNOLDS M C: "Electric furnace design", GLASS TECHNOLOGY, SOCIETY OF GLASS TECHNOLOGY, SHEFFIELD, GB, vol. 23, no. 1, 1 February 1982 (1982-02-01), pages 38 - 43, XP002182821, ISSN: 0017-1050 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025233360A1 (fr) * | 2024-05-07 | 2025-11-13 | Saint-Gobain Isover | Four verrier électrique |
| FR3162109A1 (fr) * | 2024-05-07 | 2025-11-14 | Saint-Gobain Isover | Four verrier électrique |
Also Published As
| Publication number | Publication date |
|---|---|
| MX2025005683A (es) | 2025-06-02 |
| JP2026500010A (ja) | 2026-01-05 |
| CL2025001462A1 (es) | 2025-09-05 |
| FR3142185B1 (fr) | 2025-06-06 |
| KR20250110871A (ko) | 2025-07-21 |
| CO2025007854A2 (es) | 2025-07-07 |
| AR131104A1 (es) | 2025-02-19 |
| FR3142185A1 (fr) | 2024-05-24 |
| EP4619348A1 (fr) | 2025-09-24 |
| AU2023381471A1 (en) | 2025-05-15 |
| CN120303219A (zh) | 2025-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2024105247A1 (fr) | Four verrier électrique | |
| EP2004558A1 (fr) | Four à brûleur immergé et brûleur aérien | |
| FR2886934A1 (fr) | Lingots de verre de quartz a formation libre et procede de fabrication de ceux-ci | |
| FR2659729A1 (fr) | Procede de fusion et d'affinage d'une charge. | |
| TW201829324A (zh) | 用於形成玻璃製品之設備及方法 | |
| FR2757845A1 (fr) | Procede pour ameliorer le profil thermique des fours de verre et four de fusion de verre pour sa mise en oeuvre | |
| CN111032584B (zh) | 玻璃物品的制造方法以及熔融炉 | |
| CN107399901A (zh) | 一种用于生产玄武岩连续纤维的气电窑炉 | |
| FR3162109A1 (fr) | Four verrier électrique | |
| EP0140745B1 (fr) | Perfectionnements aux techiques de fusion électrique du verre | |
| WO2024105219A1 (fr) | Installation électrique de four verrier | |
| FR3148022A1 (fr) | Armaturage de four verrier | |
| CN104944765A (zh) | 一种实现玄武岩连续纤维拉丝的装置 | |
| KR100967963B1 (ko) | 직통식 특수유리제조용 전기용해로 | |
| RU2104250C1 (ru) | Способ производства волокна из природного базальта | |
| EP4587393A1 (fr) | Procédé de fabrication de verre, four verrier hybride pour la mise en oeuvre du procédé de fabrication | |
| WO2026002870A1 (fr) | Procédé de fabrication de verre et four hybride perfectionné apte à fabriquer du verre selon un tel procédé | |
| EA052904B1 (ru) | Электрическая стекловаренная печь | |
| WO2023144489A1 (fr) | Four électrique verrier, procédés de fusion et de fabrication de verre au moyen dudit four | |
| EP3233740B1 (fr) | Four verrier electrique a electrodes mobiles | |
| CN121969583A (zh) | 用于澄清容器的提升管以及用于澄清玻璃熔体的方法 | |
| CH251579A (fr) | Procédé pour la fabrication électrique de verre, et installation pour la mise en oeuvre du procédé. | |
| BE520655A (fr) | ||
| RU2545846C1 (ru) | Газоэлектрическая печь для выработки волокна из горных пород, преимущественно базальта | |
| BE467246A (fr) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 23809527 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: AU2023381471 Country of ref document: AU |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2501003121 Country of ref document: TH |
|
| ENP | Entry into the national phase |
Ref document number: 2023381471 Country of ref document: AU Date of ref document: 20231117 Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: CN2023800795260 Country of ref document: CN Ref document number: MX/A/2025/005683 Country of ref document: MX Ref document number: 202380079526.0 Country of ref document: CN |
|
| ENP | Entry into the national phase |
Ref document number: 2025528703 Country of ref document: JP Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2025528703 Country of ref document: JP |
|
| WWP | Wipo information: published in national office |
Ref document number: MX/A/2025/005683 Country of ref document: MX |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202591433 Country of ref document: EA |
|
| REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112025008312 Country of ref document: BR |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1020257019656 Country of ref document: KR |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2023809527 Country of ref document: EP Ref document number: 202517058342 Country of ref document: IN |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2023809527 Country of ref document: EP Effective date: 20250618 |
|
| WWP | Wipo information: published in national office |
Ref document number: 202517058342 Country of ref document: IN |
|
| WWP | Wipo information: published in national office |
Ref document number: 202380079526.0 Country of ref document: CN |
|
| WWP | Wipo information: published in national office |
Ref document number: 1020257019656 Country of ref document: KR |
|
| WWP | Wipo information: published in national office |
Ref document number: 2023809527 Country of ref document: EP |
|
| ENP | Entry into the national phase |
Ref document number: 112025008312 Country of ref document: BR Kind code of ref document: A2 Effective date: 20250428 |