The invention relates to a method for cooling a metal strip (2) in a coating section (1) of a continuous line for treating strips, the strip being coated beforehand with a coating comprising dry extracts and a diluent before being dried in a heating section (300) and then cooled in a cooling section (600), characterised in that the cooling is carried out successively in a primary cooler (400) and then in a secondary cooler (500), wherein the strip is cooled in the primary cooler by convection by means of a gas blown onto the strip, the temperature of which is chosen so as to maintain, in the primary cooler, a temperature higher than the condensation temperature of the diluent.
F26B 3/04 - Procédés de séchage d'un matériau solide ou d'objets impliquant l'utilisation de chaleur par convection, c.-à-d. la chaleur étant transférée d'une source de chaleur au matériau ou aux objets à sécher par un gaz ou par une vapeur, p. ex. l'air le gaz ou la vapeur circulant sur ou autour du matériau ou des objets à sécher
B05D 3/00 - Traitement préalable des surfaces sur lesquelles des liquides ou d'autres matériaux fluides doivent être appliquésTraitement ultérieur des revêtements appliqués, p. ex. traitement intermédiaire d'un revêtement déjà appliqué, pour préparer les applications ultérieures de liquides ou d'autres matériaux fluides
F26B 13/00 - Machines ou appareils à mouvement progressif pour le séchage des tissus, fibres, fils ou autres matériaux en grandes longueurs
F26B 13/10 - Aménagements pour l'alimentation, le chauffage ou la tenue du matériauCommande du mouvement, de la tension ou de la position du matériau
F26B 21/04 - Circulation de l'air ou des gaz en cycles fermés, p. ex. totalement à l'intérieur de l'enceinte de séchage partiellement à l'extérieur de l'enceinte de séchage
F26B 21/10 - Commande, p. ex. régulation des paramètres de l'alimentation en gaz de la températureCommande, p. ex. régulation des paramètres de l'alimentation en gaz de la pression
F26B 21/12 - Commande, p. ex. régulation des paramètres de l'alimentation en gaz de la vitesse d'écoulementCommande, p. ex. régulation des paramètres de l'alimentation en gaz du débit
2.
BURNER, ESPECIALLY FOR A DIRECT-FLAME PREHEATING SECTION OF A CONTINUOUS METAL-STRIP TREATMENT LINE
The invention relates to a "flameless" gas fuel burner (1) having a longitudinal axis (A) at the intersection of two perpendicular planes (P1, P2), comprising a diffuser (2) through which fuel-injection ducts (3) and oxidiser-injection ducts (4, 5) pass, the oxidiser-injection ducts (4, 5) opening out from the diffuser closer to the burner axis than the fuel-injection ducts (3) for operation in flameless mode, and further comprising a central fuel-injection duct (6) for operation in flame mode, which extends in the axial direction (A) of the burner, further comprising an internal combustion chamber (7) into which the central fuel-injection duct (6) opens, as well as a passage (8, 27, 28) supplying oxidiser, the internal combustion chamber comprising an ignition electrode (9) for starting combustion in the internal combustion chamber (7) of the mixture of fuel and oxidiser supplied thereto by the central fuel-injection duct (6) and the at least one duct (8, 27, 28) supplying oxidiser.
F23D 14/22 - Brûleurs à gaz sans prémélangeur, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion à l'arrivée dans la zone de combustion avec des conduits d'alimentation en air et en gaz séparés, p. ex. avec des conduits disposés parallèlement ou se croisant
The invention relates to a method for controlling a burner (1) supplied with a gaseous fuel, a property (P) of which fuel has a value (PA) that varies between a minimum value (PI) and a maximum value (P2), the burner comprising a set of fuel injectors (2a, 2b, 2c, 2d) suitable for being supplied with fuel, characterised in that the method comprises a step of selecting one or more injectors (2a, 2b, 2c, 2d) to be supplied with fuel depending on the value (PA) of the property (P) of the fuel. The scale between the minimum value and the maximum value is divided into a number of value ranges, each of these value ranges being associated with one or more fuel injectors. The method comprises a step of determining the value range to which the value (PA) of the property (P) of the fuel belongs, followed by a step of supplying fuel to the one or more fuel injectors associated with this value range, the one or more other injectors not being supplied with fuel.
F23C 6/04 - Appareils à combustion caractérisés par la combinaison d'au moins deux chambres de combustion disposées en série
F23D 14/22 - Brûleurs à gaz sans prémélangeur, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion à l'arrivée dans la zone de combustion avec des conduits d'alimentation en air et en gaz séparés, p. ex. avec des conduits disposés parallèlement ou se croisant
F23D 14/58 - Buses caractérisés par la forme ou la disposition de l'orifice ou des orifices des buses, p. ex. en couronne
F23D 14/84 - Diffusion de la flamme ou autres moyens pour lui donner une forme particulière
F23N 1/00 - Régulation de l'alimentation en combustible
4.
SYSTEM AND METHOD FOR GUIDING A STRIP TRAVELING IN A CONTINUOUS LINE
A system (1) for guiding a strip (2) traveling in a continuous processing line (3) for the continuous processing of the strip, comprising a plurality of guiding units (116, 131, 141, 171, 193, 202) and a plurality of detectors (114, 117, 132, 142, 151, 172, 194, 203) which detect the position of the strip and are arranged along the line, characterized in that it comprises a dynamic computer-assisted control model (300) that can take account of the position of the strip relative to the center of the line at several points along the line for the joint control of the plurality of guiding units.
G05B 13/04 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques impliquant l'usage de modèles ou de simulateurs
G05B 13/02 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques
C21D 9/52 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour fils métalliquesTraitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour bandes métalliques
5.
METHOD AND DEVICE FOR RAPIDLY COOLING A METAL STRIP AND CONTINUOUS PRODUCTION LINE FOR METAL STRIPS
The invention relates to a device and method for rapidly cooling metal strips on a continuous production line, the invention being arranged so as to cool the strip as it travels by spraying a liquid, or a mixture of a gas and a liquid, thereon by means of nozzles (21) arranged on spraying units (3, 4), the invention being characterised in that the cooling device comprises spraying units (3) that are rotatable on a plane perpendicular to the strip (8) and perpendicular to the direction of travel of the strip, thereby making it possible to adjust a spraying angle of the spraying units that are movable relative to the strip.
Method for reducing unevenness in a strip subjected to cooling by spraying of liquid, or a mixture of gas and liquid, along a cooling zone of a continuous heat treatment one, the cooling intensity being adjusted in the direction of travel of the strip so as to achieve a relative position between the Leidenfrost temperature and at least one temperature at which the metallurgical structure changes such that said cooling intensity minimizes the internal stresses of the strip, and device for implementing the method.
C21D 1/613 - GazProduits normalement gazeux à l'état liquide ou solide
C21D 11/00 - Commande ou régulation du processus lors de traitements thermiques
B21B 37/44 - Commande de la planéité ou du profil pendant le laminage de bandes, de feuilles ou de tôles utilisant le chauffage, la lubrification ou le refroidissement par jets d'eau, du produit
7.
DIRECT FLAME PREHEATING SECTION FOR A CONTINUOUS METAL STRIP PROCESSING LINE
Direct flame preheating section for continuous metal strip processing lines, comprising a connecting zone between an active zone provided with burners capable of operating in “no flame” mode and a recuperative zone for preheating the strip by exchange with combustion fumes originating from the active zone, the connecting zone having chambers capable of orienting the flow of fumes such that they flow head-on relative to the strip when exiting the active zone and entering the recuperative zone depending on the direction of flow of the fumes.
C21D 1/767 - Procédés de traitement en gaz neutre, en atmosphère contrôlée, sous vide ou dans des matières pulvérulentes avec une circulation forcée de gazLeur réchauffage
F27B 9/12 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité avec dispositions particulières pour le préchauffage ou le refroidissement de la charge
F27B 9/28 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité pour traiter des longueurs ininterrompues du matériau travaillé
8.
COANDA-EFFECT RECUPERATOR AND RADIANT TUBE COMBUSTION EQUIPMENT EQUIPPED WITH SAID RECUPERATOR
The invention relates to a recuperator (1) for a radiant-tube burner (3) having a convex surface on a mixing tube inside a tubular casing (6) of the recuperator, coaxial therewith and therewith forming a second annular space (9) in which combustion air circulates in the opposite direction to the flue gases flowing from a first annular space and being preheated by heat given up by the flue gases through the tubular casing, which first annular space is formed by a tubular casing (6) coaxial with an exhaust pipe, the flow of the combustion air over the convex surface having the effect of entraining, through the Coanda effect, some of the flue gases into the mixing tube where they mix with the combustion air before being recirculated to a burner via a recirculation pipe.
Disclosed is a device for removing mattes from the surface of a liquid metal bath inside a duct of a line for continuously coating a metal strip having first and second faces, the first face being intended to come into contact with a bottom roller, comprising a compartment via which the liquid metal inside the duct is replenished by being drawn off by a pump to which the compartment is connected, characterized in that the compartment is capable of being removed by disassembly means without the metal strip needing to be cut.
C23C 2/00 - Procédés de trempage à chaud ou d'immersion pour appliquer le matériau de revêtement à l'état fondu sans modifier la forme de l'objet immergéAppareils à cet effet
The invention relates to a method for removing residues present on a metal strip at the outlet of a cooling stage of a continuous line, the residues being formed during a cooling of said metal strip by a non-oxidizing liquid solution for the metal strip and a stripping liquid solution for the oxides present on the surface of the strip, or by a mixture of this liquid solution and a gas. The method according to the invention is characterized in that it comprises a step of reducing the residues by hydrogen.
The invention relates to a cooling chamber (2) for cooling a metal strip (1) running vertically in a continuous treatment line, said chamber comprising an upper cooling zone (3) in which a cooling liquid is sprayed onto the strip, and an intermediate zone (36) for drying the strip, comprising at least one nozzle (8) intended to form a blade (32) of gas impacting the strip at an acute angle A less than 80°, and preferably less than 60°, characterized in that the nozzle (8) is situated in an enclosure (33) defined by the strip and profiled sheet metalwork (20) arranged facing the strip, said profiled sheet metalwork forming a barrier to the ingress of liquid into the enclosure. The invention also relates to a continuous treatment line comprising the chamber and to a quenching method implemented in the line.
C21D 1/667 - Dispositifs pour trempe pour la trempe par pulvérisation
C21D 9/00 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet
C21D 9/56 - Fours continus pour bandes ou fils métalliques
C21D 9/573 - Fours continus pour bandes ou fils métalliques avec refroidissement
F27B 9/28 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité pour traiter des longueurs ininterrompues du matériau travaillé
F27B 9/30 - Parties constitutives, accessoires ou équipement spécialement adaptés à ces types de fours
F27D 9/00 - Refroidissement des fours ou des charges s'y trouvant
F27B 9/12 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité avec dispositions particulières pour le préchauffage ou le refroidissement de la charge
12.
DEVICE AND METHOD FOR HEAT TREATMENT OF STEELS, INCLUDING A WET COOLING
The invention relates to a method and a device for rapidly cooling a metal strip and removing residues present on the strip after this cooling, wherein the residues are formed during a cooling of said metal strip by a non-oxidizing liquid solution for the metal strip and a stripping liquid solution for the oxides present on the surface of the strip, or by a mixture of this liquid solution and a gas.
A method for controlling a furnace for reheating iron and steel products, comprising forming an infrared image, using an infrared camera, of an upper face of a product over the width and at least partially over the length thereof when said product is arranged on a predetermined discharging surface; digital processing comprising binarization of the infrared image into two classes of pixels, one class that corresponds to the pixels associated with the presence of scale that is bonded on the face of the product and one class that corresponds to the pixels associated with the presence of scale that is not bonded on the face of the product; determining the amounts of non-bonded scale and of bonded scale on the upper face of the product on the basis of the binarized image; modifying furnace control parameters on the basis of the determined amounts of non-bonded scale and of bonded scale.
F27B 9/40 - Aménagement des dispositifs de commande ou de surveillance
F27D 19/00 - Aménagement des dispositifs de commande
F27D 21/02 - Dispositifs d'observation ou d'éclairage
F27B 9/20 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le trajet de la charge pendant le traitementFours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le procédé de déplacement de la charge pendant le traitement la charge se déplaçant sur un trajet sensiblement rectiligne
14.
PROCESSING LINE FOR THE CONTINUOUS PROCESSING OF METAL STRIPS HAVING A DUAL PURPOSE OF PRODUCING STRIPS THAT ARE ANNEALED AND DIP-COATED OR NOT COATED, AND CORRESPONDING COOLING TOWER AND METHOD FOR SWITCHING FROM ONE CONFIGURATION TO THE OTHER
Disclosed is a treatment line for the continuous treatment of metal strips having a dual purpose, i.e. for producing strips that are annealed and dip-coated with a metal alloy and for producing strips that are annealed and not coated, comprising a dual-purpose cooling tower, i.e. for cooling strips that are annealed and not coated in a non-oxidizing atmosphere and for air-cooling strips that are annealed and coated.
Direct flame preheating section for continuous metal strip processing lines (B), comprising a connecting zone between an active zone (14) provided with burners capable of functioning in 'no flame' mode and a recuperative zone (11) for preheating the strip by exchange with combustion fumes originating from the active zone, the connecting zone having chambers (18, 19) capable of orienting the flow of fumes such that they flow head-on relative to the strip when exiting the active zone and entering the recuperative zone depending on the direction of flow of the fumes.
C21D 1/767 - Procédés de traitement en gaz neutre, en atmosphère contrôlée, sous vide ou dans des matières pulvérulentes avec une circulation forcée de gazLeur réchauffage
F27B 9/12 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité avec dispositions particulières pour le préchauffage ou le refroidissement de la charge
F27B 9/28 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité pour traiter des longueurs ininterrompues du matériau travaillé
F27B 9/36 - Aménagement des dispositifs de chauffage
16.
DIRECT FLAME PREHEATING SECTION FOR A CONTINUOUS METAL STRIP PROCESSING LINE
Direct flame preheating section for continuous metal strip processing lines (B), comprising a connecting zone between an active zone (14) provided with burners capable of functioning in 'no flame' mode and a recuperative zone (11) for preheating the strip by exchange with combustion fumes originating from the active zone, the connecting zone having chambers (18, 19) capable of orienting the flow of fumes such that they flow head-on relative to the strip when exiting the active zone and entering the recuperative zone depending on the direction of flow of the fumes.
C21D 1/74 - Procédés de traitement en gaz neutre, en atmosphère contrôlée, sous vide ou dans des matières pulvérulentes
C21D 1/767 - Procédés de traitement en gaz neutre, en atmosphère contrôlée, sous vide ou dans des matières pulvérulentes avec une circulation forcée de gazLeur réchauffage
C21D 9/56 - Fours continus pour bandes ou fils métalliques
F27B 9/12 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité avec dispositions particulières pour le préchauffage ou le refroidissement de la charge
F27B 9/28 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité pour traiter des longueurs ininterrompues du matériau travaillé
F27B 9/30 - Parties constitutives, accessoires ou équipement spécialement adaptés à ces types de fours
F27B 9/36 - Aménagement des dispositifs de chauffage
F27D 13/00 - Appareils pour le préchauffage des chargesDispositions pour le préchauffage des charges
F27D 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
17.
DEVICE FOR REMOVING MATTES FROM THE SURFACE OF A LIQUID METAL BATH INSIDE A DUCT OF A LINE FOR CONTINUOUSLY COATING A METAL STRIP
Disclosed is a device for removing mattes from the surface of a liquid metal bath (2) inside a duct (3) of a line for continuously coating a metal strip (1) having first and second faces, the first face being intended to come into contact with a bottom roller (11), comprising a compartment (50) via which the liquid metal inside the duct is replenished by being drawn off by a pump (17) to which the compartment is connected, characterised in that the compartment is capable of being removed by disassembly means without the metal strip needing to be cut.
C23C 2/00 - Procédés de trempage à chaud ou d'immersion pour appliquer le matériau de revêtement à l'état fondu sans modifier la forme de l'objet immergéAppareils à cet effet
18.
DEVICE AND METHOD FOR HEAT TREATMENT OF STEELS, INCLUDING A WET COOLING
The invention relates to a method for removing residues present on a metal strip at the outlet of a cooling stage of a continuous line, the residues being formed during a cooling of said metal strip by a non-oxidizing liquid solution for the metal strip and a stripping liquid solution for the oxides present on the surface of the strip, or by a mixture of this liquid solution and a gas. The method according to the invention is characterized in that it comprises a step of reducing the residues by hydrogen.
C23G 5/00 - Nettoyage ou dégraissage des matériaux métalliques par d'autres méthodesAppareils pour le nettoyage ou le dégraissage de matériaux métalliques au moyen de solvants organiques
C23C 2/00 - Procédés de trempage à chaud ou d'immersion pour appliquer le matériau de revêtement à l'état fondu sans modifier la forme de l'objet immergéAppareils à cet effet
C23C 2/02 - Pré-traitement du matériau à revêtir, p. ex. pour le revêtement de parties déterminées de la surface
19.
DEVICE AND METHOD FOR HEAT TREATMENT OF STEELS, INCLUDING A WET COOLING
The invention relates to a method and a device for rapidly cooling a metal strip and removing residues present on the strip after this cooling, wherein the residues are formed during a cooling of said metal strip by a non-oxidizing liquid solution for the metal strip and a stripping liquid solution for the oxides present on the surface of the strip, or by a mixture of this liquid solution and a gas.
C23G 5/00 - Nettoyage ou dégraissage des matériaux métalliques par d'autres méthodesAppareils pour le nettoyage ou le dégraissage de matériaux métalliques au moyen de solvants organiques
C23C 2/00 - Procédés de trempage à chaud ou d'immersion pour appliquer le matériau de revêtement à l'état fondu sans modifier la forme de l'objet immergéAppareils à cet effet
C23C 2/02 - Pré-traitement du matériau à revêtir, p. ex. pour le revêtement de parties déterminées de la surface
20.
DEVICE AND METHOD FOR CONTROLLING A REHEATING FURNACE
Method for controlling a furnace (4) for reheating steel products (5), comprising: forming an infrared image, using an infrared camera (20), of an upper face of a product (5) over the width and at least partially over the length thereof when the product is arranged on a predetermined furnace discharging surface; digital processing, comprising binarisation of the infrared image into two classes of pixels: one class of pixels which corresponds to the pixels associated with a presence of calamine bonded to the face of the product and another class of pixels which corresponds to the pixels associated with a presence of calamine which is not bonded to the face of the product; establishing the quantities of non-bonded calamine and calamine bonded to the upper face of the product from the binarised image; modifying control parameters for the furnace from the established quantities of non-bonded and bonded calamine.
F27B 9/40 - Aménagement des dispositifs de commande ou de surveillance
B21B 38/00 - Procédés ou dispositifs de mesure spécialement adaptés aux laminoirs, p. ex. détection de la position, inspection du produit
B21B 45/04 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs pour décaper, p. ex. décalaminer
F27D 19/00 - Aménagement des dispositifs de commande
F27D 21/02 - Dispositifs d'observation ou d'éclairage
F27B 9/20 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le trajet de la charge pendant le traitementFours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le procédé de déplacement de la charge pendant le traitement la charge se déplaçant sur un trajet sensiblement rectiligne
21.
DEVICE AND METHOD FOR CONTROLLING A REHEATING FURNACE
Method for controlling a furnace (4) for reheating steel products (5), comprising: forming an infrared image, using an infrared camera (20), of an upper face of a product (5) over the width and at least partially over the length thereof when the product is arranged on a predetermined furnace discharging surface; digital processing, comprising binarisation of the infrared image into two classes of pixels: one class of pixels which corresponds to the pixels associated with a presence of calamine bonded to the face of the product and another class of pixels which corresponds to the pixels associated with a presence of calamine which is not bonded to the face of the product; establishing the quantities of non-bonded calamine and calamine bonded to the upper face of the product from the binarised image; modifying control parameters for the furnace from the established quantities of non-bonded and bonded calamine.
B21B 38/00 - Procédés ou dispositifs de mesure spécialement adaptés aux laminoirs, p. ex. détection de la position, inspection du produit
F27B 9/20 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le trajet de la charge pendant le traitementFours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le procédé de déplacement de la charge pendant le traitement la charge se déplaçant sur un trajet sensiblement rectiligne
F27B 9/40 - Aménagement des dispositifs de commande ou de surveillance
F27D 21/02 - Dispositifs d'observation ou d'éclairage
Method for reducing unevenness in a strip subjected to cooling by spraying of liquid, or a mixture of gas and liquid, along a cooling zone of a continuous heat treatment line, the cooling intensity being controlled in the direction of travel of the strip so as to achieve a relative position between the Leidenfrost temperature and at least one temperature at which the metallurgical structure changes such that said cooling intensity minimises the internal stresses of the strip, and device for implementing the method.
C21D 1/667 - Dispositifs pour trempe pour la trempe par pulvérisation
C21D 9/00 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 9/573 - Fours continus pour bandes ou fils métalliques avec refroidissement
C21D 11/00 - Commande ou régulation du processus lors de traitements thermiques
B21B 37/44 - Commande de la planéité ou du profil pendant le laminage de bandes, de feuilles ou de tôles utilisant le chauffage, la lubrification ou le refroidissement par jets d'eau, du produit
B21B 45/02 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs pour lubrifier, refroidir ou nettoyer
C21D 6/00 - Traitement thermique des alliages ferreux
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
23.
PROCESSING LINE FOR THE CONTINUOUS PROCESSING OF METAL STRIPS HAVING A DUAL PURPOSE OF PRODUCING STRIPS THAT ARE ANNEALED AND DIP-COATED OR NOT COATED, AND CORRESPONDING COOLING TOWER AND METHOD FOR SWITCHING FROM ONE CONFIGURATION TO THE OTHER
Disclosed is a processing line for the continuous processing of metal strips having a dual purpose, i.e. for producing strips that are annealed and dip-coated with a metal alloy and for producing strips that are annealed and not coated, comprising a dual-purpose cooling tower (14), i.e. for cooling strips that are annealed and not coated in a non-oxidising atmosphere and for air-cooling strips that are annealed and coated.
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 9/56 - Fours continus pour bandes ou fils métalliques
C21D 9/573 - Fours continus pour bandes ou fils métalliques avec refroidissement
C23C 2/00 - Procédés de trempage à chaud ou d'immersion pour appliquer le matériau de revêtement à l'état fondu sans modifier la forme de l'objet immergéAppareils à cet effet
Walking beam furnace comprising movable (10C) and stationary andirons which are supported by movable (12Q) and stationary keels, respectively, and drive means designed to move a lifting frame (2) and a translation frame (3) according to a rectangular displacement cycle having two vertical positions and an intermediate vertical position according to which the movable andirons are at the same height as the stationary andirons, the furnace further comprising stationary and movable beams (LRM), the movable beams being arranged between the stationary beams and separated from the latter by a space, the movable keels being attached to the movable beams, which are attached to the translation frame and arranged at the same height as the stationary refractory beams in the intermediate position, the furnace further comprising a plurality of skirts (70) attached to the other movable beams defining the separation space and dipping into longitudinal water tanks (40) arranged in line with the separation spaces and attached to one of the beams defining a separation space.
F27B 9/20 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le trajet de la charge pendant le traitementFours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le procédé de déplacement de la charge pendant le traitement la charge se déplaçant sur un trajet sensiblement rectiligne
F27D 25/00 - Dispositifs pour enlever les incrustations
25.
WALKING BEAM FURNACE FOR CONTINUOUSLY DISCHARGING AND SHREDDING SCALE
Walking beam furnace comprising movable (10C) and stationary andirons which are supported by movable (12Q) and stationary keels, respectively, and drive means designed to move a lifting frame (2) and a translation frame (3) according to a rectangular displacement cycle having two vertical positions and an intermediate vertical position according to which the movable andirons are at the same height as the stationary andirons, the furnace further comprising stationary and movable beams (LRM), the movable beams being arranged between the stationary beams and separated from the latter by a space, the movable keels being attached to the movable beams, which are attached to the translation frame and arranged at the same height as the stationary refractory beams in the intermediate position, the furnace further comprising a plurality of skirts (70) attached to the other movable beams defining the separation space and dipping into longitudinal water tanks (40) arranged in line with the separation spaces and attached to one of the beams defining a separation space.
F27B 9/20 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le trajet de la charge pendant le traitementFours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le procédé de déplacement de la charge pendant le traitement la charge se déplaçant sur un trajet sensiblement rectiligne
F27D 25/00 - Dispositifs pour enlever les incrustations
26.
Method and section for quick cooling of a continuous line for treating metal belts
Rapid cooling section of a continuous metal strip treatment line, where the strip is cooled with a spray of liquid or a mixture of gas and liquid using nozzles located on each side of the strip. Along the direction of movement of the strip, it includes at least one row of flat spray nozzles across the strip followed by at least one row of cone spray nozzles across the strip.
C21D 9/52 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour fils métalliquesTraitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour bandes métalliques
C21D 1/667 - Dispositifs pour trempe pour la trempe par pulvérisation
Method and facility for recovering thermal energy on a furnace with tubular side members and for converting same into electricity by means of a turbine producing the electricity by implementing a rankine cycle
A heat energy recovery installation installed on a beam reheating furnace equipped with burners includes a turbine that generates electricity by implementing a Rankine cycle on an organic fluid coming from calories derived partly from the fluid used for cooling the tubular beams via a first intermediate circuit, and in part from flue gases from the burners by way of a second intermediate circuit.
F01K 23/10 - Ensembles fonctionnels caractérisés par plus d'une machine motrice fournissant de l'énergie à l'extérieur de l'ensemble, ces machines motrices étant entraînées par des fluides différents les cycles de ces machines motrices étant couplés thermiquement la chaleur de combustion provenant de l'un des cycles chauffant le fluide dans un autre cycle le fluide à la sortie de l'un des cycles chauffant le fluide dans un autre cycle
F27D 17/00 - Dispositions pour l'utilisation de la chaleur perdueDispositions pour l'utilisation ou pour l'élimination des gaz résiduaires
F01K 25/08 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleursEnsembles fonctionnant selon un cycle fermé, non prévus ailleurs utilisant des vapeurs particulières
F27B 9/10 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité chauffés sans contact entre gaz de combustion et la chargeFours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité chauffés électriquement chauffés par air ou gaz chauds
F27B 9/30 - Parties constitutives, accessoires ou équipement spécialement adaptés à ces types de fours
28.
DEVICE FOR RADIATIVE COOLING OF A GLASS RIBBON IN A METAL BATH
Device for radiative cooling of a glass ribbon in a metal bath. The invention relates to a radiative cooler (1) placed above a glass ribbon in a tin bath for cooling the glass by means of a gas as heat transfer fluid, wherein the gas enters and exits on the same side of the tin bath, and the supply of gas is distributed over the length of the cooler from the center of the cooler to the exterior exchange surface of the cooler by means of a distribution surface.
Method and device for cooling a steel strip (1) travelling in a cooling section (2) of a continuous line, according to which method the cooling is carried out by spraying the strip with an aqueous solution of formic acid, the formic acid concentration of which is between 0.1% and 6%, and preferably between 0.5% and 2%.
C21D 1/56 - Procédés ou dispositifs généraux pour le traitement thermique, p. ex. recuit, durcissement, trempe ou revenu caractérisés par les agents de trempe
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
30.
CONTINUOUS ANNEALING OR GALVANISING LINE COMPRISING A TENSIONING BLOCK BETWEEN TWO CONSECUTIVE FURNACES
A continuous annealing or galvanising line for metal strips, which line comprises at least two consecutive annealing furnaces, a tensioning block, consisting of at least two rollers, being located between the two annealing furnaces, and a system for controlling and optimising production of said line.
Section for cooling a steel strip continuous annealing or galvanising line that is designed to receive a metal strip (1), said section comprising at least one dry cooling region (2) that is designed to spray a gas onto said steel strip, and at least one wet cooling region (5) that is designed to spray a liquid or a mixture of gas and liquid onto said steel strip.
C21D 9/52 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour fils métalliquesTraitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour bandes métalliques
The invention relates to a section for quick cooling of a continuous line for treating metal belts, in which the belt is cooled by spraying a liquid, or a mixture of a gas and a liquid, onto same via nozzles arranged on either side of the belt, characterised in that, in the direction of travel of the belt, it comprises at least one row of fan nozzles across the width of the belt, followed by at least one row of cone nozzles across the width of the strip.
C21D 9/573 - Fours continus pour bandes ou fils métalliques avec refroidissement
B05B 1/04 - Buses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage agencés pour produire un jet, un pulvérisat ou tout autre écoulement de forme ou de nature particulière, p. ex. sous forme de gouttes individuelles de forme plane, p. ex. en forme d'éventail, en forme de lame
B05B 1/06 - Buses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage agencés pour produire un jet, un pulvérisat ou tout autre écoulement de forme ou de nature particulière, p. ex. sous forme de gouttes individuelles de forme annulaire, tubulaire ou conique creuse
B21B 45/02 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs pour lubrifier, refroidir ou nettoyer
Disclosed is a method and device for determining the loss on ignition of at least part of an iron and steel product during passage through a furnace upstream of a descaler. The device includes electromagnetic sensors, with at least one arranged to scan the product's lower surface near the furnace outlet, the sensor oriented so the scanning plane of the electromagnetic radiation from the sensor is perpendicular to a direction of movement; a set of at least two electromagnetic sensors upstream of the descaler, oriented so their scanning planes are substantially on a single plane perpendicular to the direction of movement of the at least part of the product; and at least two electromagnetic sensors downstream of the descaler, oriented so their scanning planes are substantially on a single plane perpendicular to the product's movement direction. The sensors determine the height of the product upstream and downstream of the descaler.
F27D 19/00 - Aménagement des dispositifs de commande
G01B 11/06 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer la longueur, la largeur ou l'épaisseur pour mesurer l'épaisseur
C21D 11/00 - Commande ou régulation du processus lors de traitements thermiques
F27B 9/40 - Aménagement des dispositifs de commande ou de surveillance
C21D 1/74 - Procédés de traitement en gaz neutre, en atmosphère contrôlée, sous vide ou dans des matières pulvérulentes
C21D 1/76 - Réglage de la composition de l'atmosphère
G01N 21/95 - Recherche de la présence de criques, de défauts ou de souillures caractérisée par le matériau ou la forme de l'objet à analyser
G01G 19/03 - Appareils ou méthodes de pesée adaptés à des fins particulières non prévues dans les groupes pour peser des objets à roues ou roulants, p. ex. des véhicules pour peser pendant le mouvement
G01G 17/00 - Appareils ou méthodes pour peser un produit ayant une forme ou des propriétés particulières
34.
METHOD AND FACILITY FOR RECOVERING THERMAL ENERGY ON A FURNACE WITH TUBULAR SIDE MEMBERS AND FOR CONVERTING SAME INTO ELECTRICITY BY MEANS OF A TURBINE PRODUCING THE ELECTRICITY BY IMPLEMENTING A RANKINE CYCLE
Method and facility for recovering energy, installed on a heating furnace (2) with tubular side members and fitted with burners, comprising a turbine (14) producing electricity by implementing a Rankine cycle on an organic fluid (21) using heat coming in part from the fluid used for cooling the tubular side members by means of a first intermediate circuit, and in part from flue gases from the burners by means of a second intermediate circuit.
F27B 9/10 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité chauffés sans contact entre gaz de combustion et la chargeFours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité chauffés électriquement chauffés par air ou gaz chauds
F01K 23/10 - Ensembles fonctionnels caractérisés par plus d'une machine motrice fournissant de l'énergie à l'extérieur de l'ensemble, ces machines motrices étant entraînées par des fluides différents les cycles de ces machines motrices étant couplés thermiquement la chaleur de combustion provenant de l'un des cycles chauffant le fluide dans un autre cycle le fluide à la sortie de l'un des cycles chauffant le fluide dans un autre cycle
F01K 25/08 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleursEnsembles fonctionnant selon un cycle fermé, non prévus ailleurs utilisant des vapeurs particulières
F27B 9/30 - Parties constitutives, accessoires ou équipement spécialement adaptés à ces types de fours
F27D 17/00 - Dispositions pour l'utilisation de la chaleur perdueDispositions pour l'utilisation ou pour l'élimination des gaz résiduaires
35.
Method for orienting steel sheet grains, corresponding device, and facility implementing said method or device
d) in which the steel sheet (1) moves at a temperature of between approximately 750° C. and approximately 900° C. The invention also concerns a device for implementing said method in which the stretching is carried out by two tensioning blocks (41, 42) comprising traction rollers arranged to move and guide the steel sheet (1). The invention further concerns a facility for producing electrical sheet steel comprising a line comprising a rolling mill and on which said method and said device are implemented downstream from the rolling mill.
C21D 9/56 - Fours continus pour bandes ou fils métalliques
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
F27B 9/28 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité pour traiter des longueurs ininterrompues du matériau travaillé
F27B 17/00 - Fours d'un genre non couvert par l'un des groupes
36.
FLAT GLASS MANUFACTURING PLANT COMPRISING A SYSTEM FOR CONTINUOUSLY MEASURING THE TEMPERATURE OF THE GLASS, AND METHOD FOR CONTROLLING A MEASURING SYSTEM OF SAID TYPE
Flat glass manufacturing plant (100) comprising a system (1) for continuously measuring the temperature of a surface (2a, 2b) of a glass ribbon (2), said measuring system (1) comprising at least one glass temperature sensor (3) that has an outer bottom surface (4a) on which at least one reference surface (5) is formed; the outer surfaces (4) of the sensor (3), except the reference surface (5), are thermally insulated; the sensor (3) is equipped with a device (6) for measuring the temperature of the reference surface (5); the reference surface (5) is located across and at a distance (H)) from the surface (2A, 2B) to be measured of the glass ribbon, a minimum characteristic dimension (D) of the bottom surface (4a) being such that the ratio D/H is less than 1.
The invention relates to a chamber (1) for the controlled oxidation of metal strips in a furnace for annealing a continuous production line of strips which are hot-coated, for example by galvanisation, the oxidation chamber allowing the oxidation of the metal strips by means of an oxidising gas injected on at least one of the faces of a strip (15), the oxidation chamber comprising oxidation portions (17) extending over the width and/or length thereof, each portion comprising at least one blow opening (4) and at least one suction opening (5) between which an oxidising gas circulates, each portion being controllable in a different way so as to adjust the oxidation induced on the strip over the width and legnth of the oxidation chamber.
The invention relates to a control module for controlling at least one radiant tube burner, the burner comprising a fuel supply valve, an oxidant supply valve and a combustion fume discharge conduit, wherein the control module comprises: a means for measuring the quality of combustion, installed in the combustion fume discharge conduit of said at least one burner, a unit for measuring the fuel flow rate, a unit for measuring the oxidant flow rate, and a means for driving said at least one burner, acting on the opening percentages of the oxidant and fuel supply valves of said at least one burner in order to adjust the ratio of the oxidant flow rate to the fuel flow rate on the basis of the information delivered by the means for determining combustion quality.
Burner for an oven for reheating siderurlogical products such as billets, blooms or slabs, or for heat treatment oven, which is equipped with a fuel injection device and with an oxidant feed body feeding feed orifices with oxidant, the burner having an axial direction; the injection device is designed to provide a central injection of fuel via an orifice in, or parallel to, the axial direction of the burner; the oxidant feed body includes two sets of four oxidant feed orifices, each set including two orifices situated above a horizontal plane passing through the axial direction of the burner, and two orifices situated below this plane, the orifices of a second set being further away from the horizontal plane than those of the first set, the geometric axes of the orifices of the two sets making angles of inclination with respect to the axial direction of the burner.
F23D 14/84 - Diffusion de la flamme ou autres moyens pour lui donner une forme particulière
F27B 9/10 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité chauffés sans contact entre gaz de combustion et la chargeFours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité chauffés électriquement chauffés par air ou gaz chauds
F23D 14/22 - Brûleurs à gaz sans prémélangeur, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion à l'arrivée dans la zone de combustion avec des conduits d'alimentation en air et en gaz séparés, p. ex. avec des conduits disposés parallèlement ou se croisant
F27D 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
40.
Method and burner for reducing nitrogen oxide emissions during the combustion of a gaseous fuel
A method for reducing nitrogen oxide NOx emissions during combustion of a gaseous fuel in a burner intended for a naked-flame or controlled-atmosphere reheating furnace, for reheating steel products or for continuous coating and/or annealing of metal strips, wherein a first dilution is carried out by mixing combustion air with combustion products upstream from or in the body of the burner, and a second dilution is carried out directly at the level at which the gaseous fuel reacts with the combustion air, mixing the fuel with a recirculated portion of the flame or products of partial combustion, the double dilution enabling the physical and chemical properties of the gas to be modified in order for the burner to operate with low oxygen rates and obtain a flame that produces a very low level of NOx production regardless of the temperature of the enclosure in which the combustion takes place.
F23C 9/08 - Appareils à combustion caractérisés par des dispositions pour renvoyer les produits de combustion ou les gaz de fumée dans la chambre de combustion destinés à réduire la température dans la chambre de combustion, p. ex. à protéger les parois de la chambre de combustion
F23C 3/00 - Appareils à combustion caractérisés par la forme de la chambre de combustion
F23C 9/00 - Appareils à combustion caractérisés par des dispositions pour renvoyer les produits de combustion ou les gaz de fumée dans la chambre de combustion
41.
Method for continuous thermal treatment of a steel strip
Disclosed is a method for continuous thermal treatment of a steel strip. The strip passes through consecutive thermal treatment chambers, is quickly cooled in at least one of the chambers by spraying liquid onto the strip, or by spraying a fluid made up of gas and liquid or spraying a combination of gas and liquid forming a mist. After quick cooling, a protective metal layer is deposited on the strip by dip coating. The cooling fluid strips iron oxides or other alloy elements contained in the steel to be treated, minimizing oxidation and reducing the oxides on the strip. Spray pressure and distance are chosen to facilitate the stripping property and the mechanical action of the sprayed fluid, reducing the layer of oxides on the strip. The temperature of the strip at the end of the cooling step is the temperature necessary for carrying out the desired treatment cycle.
C21D 9/52 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour fils métalliquesTraitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour bandes métalliques
C21D 9/56 - Fours continus pour bandes ou fils métalliques
C21D 9/573 - Fours continus pour bandes ou fils métalliques avec refroidissement
C21D 9/68 - Fours de bobinageAppareils bobineurs à chaud
C21D 1/667 - Dispositifs pour trempe pour la trempe par pulvérisation
The invention relates to a method and device for determining the loss on ignition of at least part of an iron and steel product (5), referred to as the "product", during the passage of said product through a heating furnace (4) located upstream of a descaler (8). The product preferably moves on roller tables (3, 6). Said device includes a set of electromagnetic sensors (20, 30, 31, 40, 41). Said set includes: - at least one electromagnetic sensor (20) of the set is arranged so as to scan at least partially along a scanning plane the lower surface (50) of the product (5) near the outlet of the furnace (4), said electromagnetic sensor being oriented so that the scanning plane (P20) of the electromagnetic radiation from said sensor is perpendicular to a direction of movement of the product; - a set of at least two electromagnetic sensors (30, 31) placed upstream of the descaler (8) and oriented so that the scanning planes (P30, P31) of the electromagnetic radiation therefrom are substantially on a single plane (P32) perpendicular to the direction of movement of said at least part of the product passing by the generator of a roller of a roller table (3); and - a set of at least two electromagnetic sensors (40, 41) placed downstream of the descaler (8) and oriented so that the scanning planes (P40, P41) of the electromagnetic radiation therefrom are substantially on a single plane (P42) perpendicular to the direction of movement of the product passing by the generator of a roller from a roller table (6). Said sensors (30, 31, 40, 41) are arranged so as to determine the height of the product upstream and downstream of the descaler.
C21D 11/00 - Commande ou régulation du processus lors de traitements thermiques
F27B 9/40 - Aménagement des dispositifs de commande ou de surveillance
F27D 3/00 - ChargementDéchargementManutention des charges
F27D 19/00 - Aménagement des dispositifs de commande
F27D 21/00 - Aménagement des dispositifs de surveillanceAménagement des dispositifs de sécurité
G01B 15/02 - Dispositions pour la mesure caractérisées par l'utilisation d'ondes électromagnétiques ou de radiations de particules, p. ex. par l'utilisation de micro-ondes, de rayons X, de rayons gamma ou d'électrons pour mesurer l'épaisseur
43.
DEVICE AND METHOD FOR DETERMINING THE LOSS ON IGNITION OF AT LEAST PART OF AN IRON AND STEEL PRODUCT
The invention relates to a method and device for determining the loss on ignition of at least part of an iron and steel product (5), referred to as the "product", during the passage of said product through a heating furnace (4) located upstream of a descaler (8). The product preferably moves on roller tables (3, 6). Said device includes a set of electromagnetic sensors (20, 30, 31, 40, 41). Said set includes: - at least one electromagnetic sensor (20) of the set is arranged so as to scan at least partially along a scanning plane the lower surface (50) of the product (5) near the outlet of the furnace (4), said electromagnetic sensor being oriented so that the scanning plane (P20) of the electromagnetic radiation from said sensor is perpendicular to a direction of movement of the product; - a set of at least two electromagnetic sensors (30, 31) placed upstream of the descaler (8) and oriented so that the scanning planes (P30, P31) of the electromagnetic radiation therefrom are substantially on a single plane (P32) perpendicular to the direction of movement of said at least part of the product passing by the generator of a roller of a roller table (3); and - a set of at least two electromagnetic sensors (40, 41) placed downstream of the descaler (8) and oriented so that the scanning planes (P40, P41) of the electromagnetic radiation therefrom are substantially on a single plane (P42) perpendicular to the direction of movement of the product passing by the generator of a roller from a roller table (6). Said sensors (30, 31, 40, 41) are arranged so as to determine the height of the product upstream and downstream of the descaler.
F27B 9/40 - Aménagement des dispositifs de commande ou de surveillance
C21D 11/00 - Commande ou régulation du processus lors de traitements thermiques
F27D 19/00 - Aménagement des dispositifs de commande
G01G 19/03 - Appareils ou méthodes de pesée adaptés à des fins particulières non prévues dans les groupes pour peser des objets à roues ou roulants, p. ex. des véhicules pour peser pendant le mouvement
B21B 38/00 - Procédés ou dispositifs de mesure spécialement adaptés aux laminoirs, p. ex. détection de la position, inspection du produit
44.
DEVICE FOR HANDLING THE EDGE OF A RIBBON OF FLOAT GLASS, COMPRISING AN INCLINED-AXIS WHEEL, AND INSTALLATION COMPRISING SUCH A DEVICE
Device for manipulating the edge of a ribbon of glass comprising a wheel, and float glass installation comprising such a device. A device for manipulating the edge of a ribbon of pasty glass travelling on a bath of liquid in a float chamber, comprising a wheel (1) positioned at a distal end of a barrel (2), the wheel (1) being turned about its own axis, this axis being concurrent with the longitudinal geometric axis of the barrel and making therewith a permanent fix angle determined by design, the barrel (2) having a possibility for adjustment in rotation about its longitudinal axis, and installation comprising such a device.
C03B 18/00 - Façonnage du verre en contact avec la surface d'un liquide
C03B 18/06 - Modification ou régulation des dimensions du ruban de verre fondu utilisant des moyens mécaniques, p. ex. barrages de réduction, rouleaux marginaux
45.
METHOD FOR ORIENTING STEEL SHEET GRAINS, CORRESPONDING DEVICE, AND FACILITY IMPLEMENTING SAID METHOD OR DEVICE
The invention concerns a method for accentuating the orientation of the grains of a continuous steel sheet (1), in particular for producing electrical sheet steel, said method involving, during the movement of the steel sheet (1) in the longitudinal direction of same, a longitudinal stretching of the steel sheet (1) in a stretch region (1d) in which the steel sheet (1) moves at a temperature of between approximately 750°C and approximately 900°C. The invention also concerns a device for implementing said method in which the stretching is carried out by two tensioning blocks (41, 42) comprising traction rollers arranged to move and guide the steel sheet (1). The invention further concerns a facility for producing electrical sheet steel comprising a line comprising a rolling mill and on which said method and said device are implemented downstream from the rolling mill.
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 9/56 - Fours continus pour bandes ou fils métalliques
F27B 9/28 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité pour traiter des longueurs ininterrompues du matériau travaillé
F27B 17/00 - Fours d'un genre non couvert par l'un des groupes
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
Produits et services
Industrial installations, namely, continuous processing machines for the production, processing, coating or burning of glass Computer programs for the local and remote control, regulation, operation and optimization of industrial furnaces, heaters and cooling apparatus for industrial furnaces used for brewing apparatus glass; electric and electronic monitoring and control apparatus, namely, electrical controlling devices for the local and remote control, regulation, operation and optimization of industrial furnaces, heaters, and cooling apparatus for industrial furnaces used for brewing apparatus glass, making tin baths to be used in the production of float glass, annealing arches used in the production of flat glass and hollow glass, filling of glass channels and electrical controls for processing equipment used to package glass, gravure coating for glass and continuous sheet glass Industrial furnace for heating and melting glass; industrial furnace parts, namely, devices for transporting and feeding molten glass in the thermal conditioning of glass; industrial furnace parts, namely, diverting weirs; industrial furnace parts, namely, electrically heated devices in the nature of tin baths and related equipment for forming float glass; industrial furnace equipment for treating glass, namely, lehrs
47.
METHOD AND EQUIPMENT FOR CONTROLLING THE TEMPERATURE OF A RIBBON OF FLOAT GLASS ON A MOLTEN METAL BATH
A method for controlling the temperature of a ribbon of float glass (1) on a molten metal bath (5) of a float glass production line by using radiative units inside the closed space above the bath to cool the glass ribbon, said method involving: circulating a gaseous fluid through the radiative units (13) for controlling the temperature of the glass ribbon; using the radiative units inside said closed space not only to absorb heat radiation from the glass and the environment of thereof in order to cool same, but also to emit heat radiation and provide heating for the glass; and defining the intensity of the heat exchange between each radiative unit and the glass ribbon at each point of the length of the bath so as to obtain the desired temperature curve.
The invention relates to a method for controlling heating (Z2) and supporting (Z3) areas of a continuous processing line for thermal treatment of a metal strip, said line being provided with radiating tubes heated by the combustion of a fossil fuel, the line comprising an enclosure which the metal strip enters on a plurality of rollers for guiding same, during multiple passes. The rollers are, in particular, vertical. The radiating tubes are arranged in rows and columns. The radiating tubes have an all-or-nothing operation, by being switched on or off. The heating area comprises a number Nmax of radiating tubes such as to ensure, when all the tubes operate continuously, the heating capacity Pmax of the line. When the required heating capacity Prequise is lower than Pmax, a limited number of radiating tubes are operated continuously in the heating area, corresponding to the required heat demand in said heating area, a reduced number of tubes operating intermittently such as to respond to fluctuations in the heat demand around a mean value.
The invention relates to a method for reducing nitrogen oxide NOx emissions during the combustion of a gaseous fuel in a burner (10') intended for a naked-flame or controlled-atmosphere reheating furnace, for reheating steel products or for continuous coating and/or annealing of metal strips, in particular of steel, according to which a first dilution is carried out by mixing combustion air (7) with combustion products (9) upstream from the burner or in the body of the burner, and a second dilution is carried out directly at the level (A) at which the gaseous fuel reacts with the combustion air, mixing the fuel with a recirculated portion of the flame or the products of partial combustion, said double dilution enabling the physical and chemical properties of the gas to be modified in order for the burner to operate with low oxygen rates such as to obtain a flame that produces a very low level of NOx production regardless of the temperature of the enclosure in which the combustion takes place.
F23C 3/00 - Appareils à combustion caractérisés par la forme de la chambre de combustion
F23C 9/00 - Appareils à combustion caractérisés par des dispositions pour renvoyer les produits de combustion ou les gaz de fumée dans la chambre de combustion
50.
METHOD AND APPARATUS FOR CONTINUOUS THERMAL TREATMENT OF A STEEL STRIP
The invention relates to a method for continuous thermal treatment of a steel strip wherein: the strip passes through consecutive thermal treatment chambers; the strip is quickly cooled, in particular at more than 200 °C/sec, in at least one of the chambers by spraying liquid onto the strip, or by spraying a fluid made up of gas and liquid or spraying a combination of gas and liquid forming a mist; and, after the quick cooling, a protective metal layer is deposited on the strip by dip coating. The fluid sprayed for cooling the strip is a fluid with properties for stripping iron oxides or other alloy elements contained in the steel to be treated, in order to minimise the oxidation of the strip and reduce the oxides that may have formed on the strip such as to reduce or eliminate surface defects during the dip-coating operation. The fluid is sprayed at a pressure and at a distance from the strip such that the combined effect of the stripping property and the mechanical action of the sprayed fluid reduces the layer of oxides on the surface of the strip. The temperature of the strip at the end of the cooling step is the temperature necessary for carrying out the desired treatment cycle, in particular between 200 °C to 750 °C, typically higher than 200 °C.
C21D 9/573 - Fours continus pour bandes ou fils métalliques avec refroidissement
C23C 2/02 - Pré-traitement du matériau à revêtir, p. ex. pour le revêtement de parties déterminées de la surface
C21D 1/667 - Dispositifs pour trempe pour la trempe par pulvérisation
C23F 17/00 - Procédés à étapes multiples pour le traitement de surface de matériaux métalliques utilisant au moins un procédé couvert par la classe et au moins un procédé couvert soit par la sous-classe , soit par la sous-classe , soit par la classe
C23G 3/02 - Appareils pour nettoyer ou décaper les matériaux métalliques pour le nettoyage des fils, rubans, filaments métalliques en continu
51.
BURNER FOR AN OVEN FOR REHEATING SIDERURLOGICAL PRODUCTS OR FOR A HEAT TREATMENT OVEN
Burner for an oven for reheating siderurlogical products such as billets, blooms or slabs, or for heat treatment oven, which is equipped with a fuel injection device and with an oxidant feed body feeding feed orifices with oxidant (8) and (9), the burner having an axial direction; the injection device is designed to provide a central injection of fuel via an orifice (10) in, or parallel to, the axial direction of the burner; the oxidant feed body comprises two sets of four oxidant feed orifices (8) and (9), each set comprising two orifices situated above a horizontal plane passing through the axial direction of the burner, and two orifices situated below this plane, the orifices (8) of a second set being further away from said horizontal plane than those (9) of the first set, the geometric axes of the orifices of the two sets making angles of inclination (a, b) with respect to said axial direction of the burner.
F23D 14/22 - Brûleurs à gaz sans prémélangeur, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion à l'arrivée dans la zone de combustion avec des conduits d'alimentation en air et en gaz séparés, p. ex. avec des conduits disposés parallèlement ou se croisant
52.
FURNACE FOR REHEATING METALLURGICAL PRODUCTS, SUCH AS BILLETS AND SLABS
A furnace for reheating metallurgical products comprising longitudinal walls provided with lateral burners (A1, B1,... N1; A2, B2,... N2), the burners being arranged in successive rows, and transverse end walls, and provided with an inlet and an outlet for the products, the furnace comprising, at the inlet, a recovery area (R) followed immediately, in the direction of travel of the products, by a preheating area, then successive heating areas, a smoke discharge channel (5) being provided immediately upstream from the furnace inlet and the recovery area being traversed by the smoke discharged in this way, flowing in the opposite direction to the movement of the products, each product being disposed in such a way as to extend in a direction transverse to the direction of travel; the furnace is provided, in the preheating area, on each longitudinal wall, with lateral burners (A1, B1, A2, B2) with flame modulation, capable of being controlled to produce a short flame or a long flame, in such a way as to generate a preferential flow (4) of the smoke in the recovery area in order to establish, from the recovery step, any desired temperature profile for the product, in particular a sloping profile, for which the temperature difference is maintained or increased in order to obtain the desired profile by combining modulation of the flame length and modulation of the ignition time of the burners in the heating areas.
F27B 9/30 - Parties constitutives, accessoires ou équipement spécialement adaptés à ces types de fours
F27B 9/36 - Aménagement des dispositifs de chauffage
F27B 9/40 - Aménagement des dispositifs de commande ou de surveillance
53.
MOLTEN METAL BATH, PARTICULARLY A MOLTEN TIN BATH, OF A PRODUCTION LINE FOR PRODUCING FLAT GLASS, AND METHOD FOR LIMITING THE DIFFERENTIAL EXPANSION BETWEEN THE CROWN AND THE VAT
The invention relates to a tin bath of a production line for producing flat glass, including a crown (6) covering a vat (5), in which the liquid tin (10) is located. The crown (6) consists of a self-supporting structure (29) that rests directly on each side of the vat (5), on a supporting framework (25), by means of a limited, suitable number of sliding or rolling bearings (24). The invention also relates to a method making it possible to limit the longitudinal differential expansion between the crown (6) and the vat (5) such as to prevent deterioration of the luting seams (19) between the vat (5) and the crown (6) that can cause gas leaks between the bath environment and the outside of the vat. Said method is characterized in that it involves monitoring the longitudinal differential expansion between the vat (5) and the crown (6) by measuring the latter and adjusting the cooling of the vat such as to keep said differential expansion within defined limits.
09 - Appareils et instruments scientifiques et électriques
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Industrial furnace regulation, control and automation
software. Programming services for the design, development and
maintenance of industrial furnace regulation, control and
automation software.
09 - Appareils et instruments scientifiques et électriques
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Industrial furnace regulation, control and automation software Programming services for the design, development and maintenance of industrial furnace regulation, control and automation software
09 - Appareils et instruments scientifiques et électriques
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Computer software for the operation, control and automation of industrial furnaces but not included for the simulation of industrial furnaces. Programming for the creation, development and maintenance of computer software for the operation, control and automation of industrial furnaces but not included for the simulation of industrial furnaces.
57.
Method for scheduling the operation of energy distribution devices, and installation implementing same
The invention relates to a method for optimizing the supply of energy, over a time interval I of duration D, to an installation equipped with N energy distribution devices operating in all-or-nothing mode and by duration modulation, an operation duration Ai being allocated to each of the N energy distribution devices over the time interval I by a command/control system of the installation. According to the method: a schedule is defined over the time interval I by means of the time division of the set of operating sequences of the N energy distribution devices (B1, B2 . . . BN), and the schedule is calculated before the start of the time interval I by taking account of the desired operation durations Ai of each energy distribution device and, for the distribution device of order number 1, by searching for the optimal position(s) over the time interval of the operating sequence(s) of this distribution device which make it possible to minimize a function U representative of the fluctuations of the energy throughput over the time interval, the sequences of the other devices retaining the positions of the initial schedule, so as to obtain a resulting optimal schedule; and the above is repeated on the basis of the optimal schedule, using successively the distribution devices of higher order number up to the distribution device of order number N, and that which minimizes function U is adopted.
G05B 13/02 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques
C21D 11/00 - Commande ou régulation du processus lors de traitements thermiques
F27B 9/36 - Aménagement des dispositifs de chauffage
F27D 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
58.
GLASS FURNACE, IN PARTICULAR FOR CLEAR OR ULTRA-CLEAR GLASS, WITH LATERAL SECONDARY RECIRCULATIONS
Glass furnace for heating and melting materials to be vitrified, in which furnace two molten glass recirculation loops are formed in the bath between a hotter central zone of the furnace and, respectively, the inlet (E) and the outlet (Y) which are at a lower temperature; the furnace comprises lateral cooling means (12a), (12b) so as to create or strengthen lateral secondary recirculation rolls (B2La), (B2Lb) of the glass.
Furnace for melting batch materials comprising: a tank (3) covered by a crown (4); a combustion zone (5) provided with burners (6); an inlet (8) for charging it with the batch materials; a downstream outlet for the melted materials, the tank containing a melt (7) when the furnace is operating and the batch materials forming a batch blanket (G) that floats on the melt and is progressively melted; the furnace includes, near the charging inlet (8), an intense heating means (B), predominantly covering the width of the batch blanket, for melting a surface layer of the materials introduced and for increasing the emissivity of the batch blanket.
The invention relates to a method for optimizing the supply of energy, over a time interval / of duration D, to an installation equipped with N energy distribution devices operating in all-or-nothing mode and by duration modulation, an operation duration Ai being allocated to each of the N energy distribution devices over the time interval / by a command/control system of the installation. According to the method: a schedule is defined over the time interval / by means of the time division of the set of operating sequences of the N energy distribution devices (B1,B2...BN), and the schedule is calculated before the start of the time interval / by taking account of the desired operation durations Ai of each energy distribution device and, for the distribution device of order number 1, by searching for the optimal position(s) over the time interval of the operating sequence(s) of this distribution device which make it possible to minimize a function U representative of the fluctuations of the energy throughput over the time interval, the sequences of the other devices retaining the positions of the initial schedule, so as to obtain a resulting optimal schedule; and the above is repeated on the basis of the optimal schedule, using successively the distribution devices of higher order number up to the distribution device of order number N, and that which minimizes function U is adopted.
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
Produits et services
Industrial plants (machines) for the continuous processing
of glass. Melting and refining furnaces for glass, thermal plants for
treating glass. Industrial, mechanical and thermal treatment for materials,
particularly glass.
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
Produits et services
Industrial plants, namely, machines for the continuous processing of glass Melting and refining furnaces for glass; thermal plants for treating glass Industrial, mechanical and thermal treatment of glass, namely, processing and finishing of glass; heat treatment and coating of glass; glass polishing; glass blowing
63.
Method and section for cooling a moving metal belt by spraying liquid
The invention relates to a method for monitoring the cooling of a moving metal belt (B) in a cooling section of a continuous processing line by spraying a liquid or a mixture consisting of a gas and a liquid onto the belt, the cooling depending on parameters including the temperature, speed, and current characteristics of a cooling liquid, wherein according to said method: one or more areas are determined in which cooling parameters are such that the local removal of a vapor film on the surface of the hot belt is carried out or capable being carried out, leading to the redampening of the belt; and at least the temperature of the cooling liquid is adjusted as a cooling parameter in the thus-determined area(s) so as to maintain, or return to, a cooling into a vapor film on the surface of the belt.
Method and device for coating a continuously moving metal strip, according to which said strip, after having received its coating, is heated in a heating section, especially for evaporating solvents and for drying or curing the coating, and then cooled in water. A continuous series of sheet-metal elements is provided between the inlet of the tunnel furnace and the outlet of the water cooler so as to make the whole assembly gas-tight, and a device for atmosphere separation by injection of a gas at a temperature above the dew point of the solvents is placed between the outlet of the tunnel furnace and the inlet of the water cooler.
a) of the cross-section remaining free for the fumes; the combustion air is heated by the fumes in the outgoing section (5) and in the return section (7), being radially shifted outside the outgoing section (5) and immersed in the fumes.
Walking beam furnace for reheating steel products enabling the products to be reheated to the temperature required for rolling, the furnace being equipped beneath the hearth with a translation frame (1) that can move horizontally and vertically by means of a mechanism, the walking beams being supported by movable keels (15) fixed to the translation frame and passing through oblong openings provided in the hearth (13), stationary beams, supported by fixed keels mounted on the hearth, being inserted between the walking beams. In the zone or zones of the furnace where scale is mainly produced, in particular near the inlet and the outlet of the furnace, the hearth (13) is thicker than in the rest of the furnace. Inclined surfaces (12) are provided in this thicker zone, with a wall slope sufficient to prevent banking-up, so as to collect the scale and the residues and conduct them towards discharge ducts (E) that emerge in water tanks (5) fastened to the translation frame (1) and enabling the scale coming from the discharge ducts to be continuously discharged, while ensuring that the furnace remains sealed.
F27B 9/20 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le trajet de la charge pendant le traitementFours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité caractérisés par le procédé de déplacement de la charge pendant le traitement la charge se déplaçant sur un trajet sensiblement rectiligne
F27D 25/00 - Dispositifs pour enlever les incrustations
C21D 9/00 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet
67.
DEVICE FOR MAINTAINING THE DRYNESS OF THE ATMOSPHERE OF AN ANNEALING FURNACE FOR METAL STRIPS, AND FURNACE PROVIDED WITH SAID DEVICE
The invention relates to a device for maintaining the dryness of the atmosphere of an annealing furnace (1) for a metal strip (2) including, before the entrance of the furnace, a means (M) suitable for reducing the presence of water on the strip (2) prior to the insertion thereof in the annealing furnace (1); the means (M) including at least one gas cutter (D) per strip surface, supplied with a dry gas having a dew point of -40 ºC to -70 ºC, and producing a gas jet which impacts the surface of the strip across the entire width thereof in order to release the moisture found on the surface of the strip.
The invention relates to a method for real-time, continuous adjustment of a set of thermal combustion chambers (2, 2i) having similar characteristics supplied by the same combustive agent (8) and fuel (9) networks, according to which one of the chambers (2i) is used as a reference chamber, combustion parameters are measured (7) in the fumes output from the reference chamber, and the control parameters of all the chambers (2) are adjusted according to the combustion parameters measured at the output of the reference chamber (2i), in particular according to the ratio of combustive agent to fuel and/or the composition of the combustive agent and/or fuel.
The invention relates to a method for printing a precision structure on the surface of a glass ribbon continuously travelling at a speed of at least 1 m/min, using an engraving roller (27) applying a printing force on the surface to be engraved, the structure to be formed comprising projecting and hollow areas with bend radii, prior heat treatment (26 and 32) being performed upstream from the engraving roller; the heat treatment being carried out in order to ensure a temperature of the ribbon (J) on the printing layer and cooling (29) downstream from the engraving roller (27) to ensure controlled solidification of the structure; the method according to the invention being suitable for determining closely linked parameters in order to obtain a specific structure, in particular the printing temperature, the printing force and the cooling rate, taking into account a degree of creeping between the moulding radius (R1) and the radius (R2) after creeping.
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
Produits et services
Industrial installations (machines) for the treatment of glass in a continuous process. Furnaces for melting and refining glass, thermal equipment for the treatment of glass. Industrial, mechanical and thermal treatment of materials, in particular glass.
71.
GLASS FURNACE HAVING CONTROLLED SECONDARY RECIRCULATION OF THE GLASS
The invention relates to a furnace for melting and fining glass, which includes: a vault provided with a heating means, a hearth (2) forming the bottom of a vat containing a bath (3) of molten glass, a width restriction (4), in particular a corset, defining a downstream portion (5) and an upstream portion (6) in the vat, and an outlet through which the molten glass is discharged, a secondary recirculation loop (B) for the molten glass forming in the bath between a hotter inner area of the furnace and the cooler outlet, said loop passing through the corset; the furnace comprises a means (M) for adjusting the width through which the glass can pass into the secondary recirculation loop, said adjustment means being submerged in the bath and extending vertically over most of the depth of the bath.
The invention relates to a glass furnace for heating and melting materials to be vitrified, in which two loops (B1, B2) for recirculating molten glass are formed in the bath between a hotter central area (I) of the furnace and the entrance and exit at a lower temperature, respectively. The furnace comprises a means (X) for slowing the flow of molten glass in the primary recirculation loop (B1).
Furnace for melting batch materials comprising: a tank (3) covered by a crown (4); a combustion zone (5) provided with burners (6); an inlet (8) for charging it with the batch materials; a downstream outlet for the melted materials, the tank containing a melt (7) when the furnace is operating and the batch materials forming a batch blanket (G) that floats on the melt and is progressively melted; the furnace includes, near the charging inlet (8), an intense heating means (B), predominantly covering the width of the batch blanket, for melting a surface layer of the materials introduced and for increasing the emissivity of the batch blanket.
The furnace comprises: a tank (3) covered by a crown, containing a melt; a combustion zone (5) provided with heating means, especially burners (6); an inlet (8) located at the upstream end of the furnace for charging it with materials to be heated; a recuperation zone (9) between the inlet and the combustion zone, through which the flue gas from an oxy-fuel combustion reaction predominantly flows; a downstream outlet for the heated or melted materials; at least one flue gas discharge opening (13) provided upstream of the recuperation zone; and the average height of the recuperation zone is such that vertical radiation from the flue gas is promoted towards the surface of the blanket to the detriment of horizontal radiation parallel to the surface of the blanket.
The invention relates to a device for separating atmospheres installed between two chambers (Ca, Cb) of a continuous line for treating metal strips, said chambers having different types of atmospheres, in order to prevent the atmosphere of a first upstream chamber (Ca) from entering into a second downstream chamber (Cb), and vice versa, said device including: a first pair of motor-driven rollers (R1a, R1b), between which the strip (1) travels at the inlet of the device; and a second pair of motor-driven rollers (R2a, R2b), between which the strip travels at the outlet of the device. The pairs of rollers (R1a, R1b, R2a, R2b) are placed so as to cause a change in the plane of movement (Pa, Pb) of the strip between the inlet and outlet of the device, and the spacing between the rollers is adjusted such that, when the strip has defects in the shape thereof, the rollers reduce the defects in the strip on the width thereof, in order to limit the gas flows (Fa, Fb).
The present invention relates to a method for cooling a moving metal belt (2) in a continuous processing line by spraying a gas, a liquid, or a mixture consisting of gas and liquid onto the belt, the processing line including a cooling section (1) followed by a downstream section (4), the inlet (4a) of the downstream section corresponding to the outlet (1b) of the cooling section, wherein according to said method: the change in the temperature cross-section of the belt between the inlet (4a) and the outlet (4b) of the downstream section (4) is evaluated; the temperature cross-section suitable for the inlet of the downstream section is deduced, on the basis of a desired temperature cross-section at the outlet of the downstream section (4), in order to obtain the desired cross-section at the outlet; and the cooling capacity of the cooling section (1) is adjusted according to the width of the belt and over the length of the cooling section, while taking into the account the temperature cross-section of the belt at the inlet of the cooling section, so that the cooling makes it possible to obtain the aforementioned temperature cross-section at the outlet of the cooling section.
C21D 9/48 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles tôles embouties
C21D 9/573 - Fours continus pour bandes ou fils métalliques avec refroidissement
C21D 9/56 - Fours continus pour bandes ou fils métalliques
C21D 11/00 - Commande ou régulation du processus lors de traitements thermiques
77.
METHOD AND SECTION FOR COOLING A MOVING METAL BELT BY SPRAYING LIQUID
The invention relates to a method for monitoring the cooling of a moving metal belt (B) in a cooling section of a continuous processing line by spraying a liquid or a mixture consisting of a gas and a liquid onto the belt, the cooling depending on parameters including the temperature, speed, and current characteristics of a cooling fluid, wherein according to said method: one or more areas are determined in which cooling parameters are such that the local removal of a vapor film on the surface of the hot belt is carried out or capable being carried out, leading to the redampening of the belt; and at least the temperature of the cooling liquid is adjusted as a cooling parameter in the thus-determined area(s) so as to maintain, or return to, a cooling into a vapor film on the surface of the belt, thus resulting in the overheating of the cooling liquid contacting the hot belt.
The invention relates to a heat recuperator (R) for a radiating tube burner having a burner pipe and an exhaust pipe (1), the recuperator being placed at the outlet of the exhaust pipe (1) and including a heat exchanger (E) that comprises: an outgoing section (5) for directing the air to be preheated to a ferrule (6), placed on the end of the recuperator, from the fume intake side, and a return section (7) opening towards a pipe (8) for supplying air from the burner, the assembly being provided such that part of the fumes are led through, and mix with, the combustion air; the heat exchanger (E) occupies only part of the cross-section of the exhaust pipe (1), the other part (1a) of the cross-section remaining free for the fumes; the combustion air is heated by the fumes in the outgoing section (5) and in the return section (7), being radially shifted outside the outgoing section (5) and immersed in the fumes.
F23C 3/00 - Appareils à combustion caractérisés par la forme de la chambre de combustion
F23C 9/00 - Appareils à combustion caractérisés par des dispositions pour renvoyer les produits de combustion ou les gaz de fumée dans la chambre de combustion
The invention relates to a recuperator for radiating tube burner, including: a tubular casing (3) placed inside the exhaust pipe (1) to determine a first annular space (2) for expelling part of the combustion materials; a mixture tube (5) placed inside the tubular casing (3) so as to define a second annular space (4), wherein the combustion air flows in a countercurrent relative to the combustion materials in the first annular space (2) and is preheated, the preheated combustion air being directed to a ferrule (6) that defines at least one path for reversing the combustion air flow direction and for directing the combustion air to an inlet of the mixture tube (5) and comprises at least one pipe (9) for enabling the passage of at least part of the combustion materials to the inside of the mixture tube; the or each pipe (9) of the ferrule opens, for passage of the combustion materials, directly onto the recuperator (6) surface (6b), turned upstream from the exhaust pipe, and is oriented so as to ensure a flow of combustion materials mainly parallel to the axis of the recuperator.
F23C 3/00 - Appareils à combustion caractérisés par la forme de la chambre de combustion
F23C 9/00 - Appareils à combustion caractérisés par des dispositions pour renvoyer les produits de combustion ou les gaz de fumée dans la chambre de combustion
Unit for the surface treatment of flat glass, in particular in the form of a ribbon or a sheet, especially by modifying the chemical, optical or mechanical properties, or the deposition of one or more thin films, comprising heating and cooling means for creating a controlled temperature gradient through the thickness of the glass, means for heating that face to be treated, in order for it to always be at the required temperatures and for the times necessary for obtaining effective treatments of the surface thereof and means for cooling the opposite face in order for this opposite face to have a viscosity of between 1013 dPa.s and 2.3´1010 dPa.s.
Process for producing a structure on one of the faces of a glass ribbon, carried out continuously using a printing device, in which: the printing device (8) is placed in a zone (A) in which the ribbon (B) is at an average temperature T1 insufficient for printing the pattern of the printing device onto the ribbon according to the nature of the pattern to be printed, to the pressure between the printing device and the ribbon and to the time during which the ribbon is in contact with the printing device; that face to be etched, upstream of the printing device (8), is heated so as to bring a limited and sufficient thickness of the ribbon to a temperature T2>T1 necessary for printing the pattern of the printing device onto the ribbon according to the nature of the pattern to be etched, to the pressure between the printing device and the ribbon and to the time during which the ribbon is in contact with the printing device, while still keeping the rest of the ribbon at a temperature close to T1; the heat flux transmitted through the ribbon by the heating means is such that the "printing number" is between 0.05 mm"1 and 2.00 mm"1 and preferably 0.3 mm"1.
The invention relates to a device for controlling regenerative burners used as a firing device, particularly for iron and steel product heating furnaces or for radiating tubes for continuous strip steel processing lines, according to which the supply of at least one of the fluids involved in the combustion (fuel and comburent) is carried out through a rotary injector (12) rotating by means of a rotatable actuator (M) so as to supply fluid alternately to one and then the other of the burners (B1, B2), the rotary injector (12) being placed on the comburent inlet duct (6), particularly air, and is provided to partially obstruct the supply pipe (19.1; 19.2) to the burner (B1; B2) such that one portion of the fumes from a regenerator (2.2; 2.1) for the non-operating burner (B2; B1) is led to the operating burner (B1; B2) and such that the other portion of the fumes is discharged to the stack.
F23C 9/00 - Appareils à combustion caractérisés par des dispositions pour renvoyer les produits de combustion ou les gaz de fumée dans la chambre de combustion
F23D 14/66 - Préchauffage de l'air de combustion ou du gaz
F23L 13/04 - Structure des soupapes ou registres de commande de l'alimentation en air ou du tirage pivotant autour d'un axe unique, mais n'ayant pas d'autre mouvement cet axe étant perpendiculaire au plan de l'appareil
F23L 17/16 - Appareils de tirage, p. ex. jet de vapeur agissant sur les produits de combustion au delà du foyer
F23C 3/00 - Appareils à combustion caractérisés par la forme de la chambre de combustion
F28D 17/04 - Dispositions de répartition des sources de potentiel calorifique
83.
DEVICE FOR LIMITING THE COMBUSTION FUME EXHAUST AT THE ENTRANCE OF A FURNACE FOR REHEATING IRON AND STEEL PRODUCTS
The invention relates to a device for limiting the combustion fume exhaust towards the outside of a continuous furnace, especially a tunnel furnace, for reheating iron and steel products, especially slabs, at the opening located at the entrance of the furnace. The first row of burners consists of at least two burners (2a, 2c) arranged at the same distance (D) from the entrance of the furnace and close thereto, and the burners of the first row of burners are inclined mainly from an angle A towards the discharge area of the furnace.
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
Produits et services
Computer programs for monitoring, regulating, controlling,
guiding and optimizing cooling apparatus fitted in a furnace
for continuous heat treatment or coating of metal strips,
electric and electronic monitoring and control apparatus for
cooling apparatus in industrial furnaces. Cooling ducts for industrial furnaces; cooling apparatus
fitted in a furnace for continuous heat treatment or coating
of metal strips.
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
Produits et services
Industrial installations (machines) used for processing
steel strips. Computer programs for monitoring, regulating, controlling,
guiding and optimizing industrial furnaces, heating or
cooling apparatus for industrial furnaces, electric and
electronic monitoring and control apparatus for industrial
furnaces, heating or cooling apparatus for industrial
furnaces; electric installations for remote control of
industrial operations. Industrial reheating furnaces and in particular furnaces for
hot rolling mills, heat treatment furnaces, bell-type
annealing furnaces; furnaces for smelting and refining
glass, silicates and special glass; industrial heating
apparatus, in particular radiant, convection, induction or
mixed heating apparatus; incinerators; industrial coolers;
industrial smoke processing apparatus and installations. Mechanical, chemical or thermal industrial treatment of
materials.
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
Produits et services
Industrial installations (machines) used for continuous
processing of metal strip. Computer programs for monitoring, regulating, controlling,
operating, optimizing industrial ovens, heating or cooling
apparatus for industrial ovens; electric and electronic
monitoring and control apparatus for industrial ovens;
electric installations for the remote control of industrial
operations. Industrial ovens for continuous thermal treatment of metal
strip; heating or cooling apparatus for industrial ovens. Industrial mechanical, chemical or thermal treatment of
metals.
87.
METHOD OF REHEATING IN A FURNACE USING A FUEL OF LOW CALORIFIC POWER, AND FURNACE USING THIS METHOD
Method of controlling a furnace (1) for reheating steel products, such as slabs, blooms, slugs or billets, capable of reheating the product to the desired temperature for rolling, the furnace being equipped with a heat recovery unit (A). The furnace is equipped principally with regenerative-type burners comprising regenerative matrices and operating on an all-or-nothing basis; the burners operate by duration modulation; some of the combustion fumes pass through the regenerative matrices of the regenerative burners in order to preheat one (fuel or oxidizer) of the fluids involved in combustion; and the remainder of the combustion fumes pass through the heat recovery unit (A) to preheat the fluid (oxidizer or fuel) other than that preheated in the regenerative matrices.
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
Produits et services
Industrial installations (machines) for continuous treatment of metal strips. Computer programs for checking, regulating, controlling, operating, optimising industrial ovens, heating or cooling apparatus for industrial ovens; electric and electronic control apparatus for industrial ovens; heating or cooling apparatus for industrial ovens; electric installations for the remote control of industrial operations. Industrial ovens for the continuous heat treatment of metal strips. Mechanical, chemical or thermal industrial treatment of materials.
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
Produits et services
[ Industrial machines used for processing steel strips ] [ Electric and electronic monitoring and control apparatus for industrial furnaces and heating or cooling apparatus for industrial furnaces; electric installations for remote control of industrial operations ] Industrial reheating furnaces, namely, furnaces for hot rolling mills, heat treatment furnaces [ and bell-type annealing furnaces; ] industrial furnaces for smelting and refining glass, silicates and special glass; industrial heating apparatus, namely, radiant, convection, [ induction ] or mixed heating apparatus for heating metalwork pieces and glass; incinerators [; industrial coolers, namely, gas coolers, water coolers for cooling metalwork pieces and glass ] [ Mechanical, chemical or thermal treatment of metal and glass materials ]
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
Produits et services
Computer programs for checking, regulating, controlling, guiding and optimising cooling apparatus installed in heat treatment furnaces or furnaces for the continuous coating of metal bands, electric and electronic apparatus for checking and controlling the cooling apparatus of industrial furnaces. Cooling jackets for industrial furnaces; cooling apparatus installed in heat treatment furnaces or furnaces for the continuous coating of metal bands.
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
Produits et services
Industrial installations (machines) for treating steel strips. Computer programs for checking, regulating, controlling, guiding and optimising industrial furnaces, heating or cooling apparatus for industrial furnaces, electric and electronic apparatus for checking and controlling industrial furnaces, heating or cooling apparatus for industrial furnaces; electric installation for the remote control of industrial operations. Industrial reheating furnaces and in particular furnaces for hot rolling mills, heat treatment furnaces, top hat furnaces; smelting and refining furnaces for glass, silicates and special glasses; industrial heating apparatus, in particular utilising heating by radiation, convection, induction or a mix of the aforesaid methods; incinerators; industrial coolers; industrial apparatus and installations for the treatment of smoke. Industrial mechanical, chemical or thermal treatment of materials.
92.
INSTALLATION FOR PRODUCING FLAT GLASS, COMPRISING A STRESS MEASURING DEVICE, AND METHOD FOR OPERATING A FLAT GLASS ANNEALING LEHR
The invention relates to an installation for producing flat glass, comprising a melting and refining furnace followed by a device for forming a flat glass ribbon and a lehr (K). The inventive installation comprises a device (G) for the non-contact measurement of the stresses in the glass ribbon on the production line, said device being integrated into the lehr (K).
G01N 21/896 - Défauts optiques dans ou sur des matériaux transparents, p. ex. distorsions, criques de surface
G01L 1/24 - Mesure des forces ou des contraintes, en général en mesurant les variations des propriétés optiques du matériau quand il est soumis à une contrainte, p. ex. par l'analyse des contraintes par photo-élasticité
C03B 25/08 - Recuisson des articles de verre en continu avec déplacement horizontal des produits en verre des feuilles de verre
93.
INSTALLATION FOR MEASURING THE TEMPERATURE OF THE RIBBON IN A FLAT GLASS ANNEALING LEHR, AND METHOD FOR OPERATING A LEHR
The invention relates to an installation for the continuous measurement of the surface temperature of a glass ribbon (G) in a flat glass lehr. Said installation comprises two sub-sets (D1, D2) which are respectively arranged either side of the glass ribbon (G), each sub-set (D1, D2) being flush with the surface of the glass ribbon, and an isothermal space being created around each each device for measuring the temperature (TC, TC2) of the ribbon by means of a thermal and optical insulator (3, 4).
A device enabling limitation of the risk of formation of an explosive atmosphere in the furnace of a continuous heat treatment line of metal strips the sections of which are under an atmosphere consisting of a mixture of inert gas and hydrogen the hydrogen volume content of which is between 5 and 100%, provided with a rapid induction heating section and a rapid cooling section comprising: a chamber (9) maintained under inert gas at the inlet of the rapid heating section of the furnace and at the outlet of the rapid cooling section, the pressure in the chamber (9) being equal to or greater than the atmospheric pressure when the heating of the furnace operates normally; a device (10) for entering the strip into the chamber (9), from the atmospheric air; a device (11) for atmosphere separation and for entering the strip in the heating section of the furnace from the chamber (9) under inert gas, said device (11) being provided with a gas take-off (4); a device (13) for atmosphere separation and for removing the strip from the rapid cooling section of the furnace, provided with a gas take-off (14), and a device (12) for removing the strip from the chamber (9) towards the atmospheric air.
Method of reducing the formation of heat-induced folds on metal strips (1) exposed to rapid heating in continuous heat-treatment lines, in which lines said strips are caused to pass through heating sections (2) comprising successive and separate heating means (5; 5a; 5b; 5c; 5d), wherein the average slope of the increase in temperature of the strip between the inlet and the outlet of a heating means decreases from one heating means to the following heating means. In this way, the variation of the heating speed at all points on the strip is reduced as the temperature of the strip increases, such that the transversal compressive stresses do not exceed the critical level of fold formation.
The invention concerns a method for cooling metal strips using cooling chambers by blowing a gas, in a continuous heat treatment line, wherein: the chambers (4,4a...4', 4'a...) have a unitary dimension (h) in the moving direction (X) of the strip less than two meters and are split along the direction perpendicular to the moving direction (X) of the strip into a plurality of unitary blowing sectors; each unitary blowing sector is equipped with at least one blowing pressure sensor (7) and with at least one actuator (2) for adjusting the pressure of each of said unitary sectors; and a controlling and regulating system controls the actuators (2) such that the longitudinal theoretical distribution of pressure in the blowing sectors corresponding to a cooling curve of the target strip is adapted so as to take into account a modification of the position of the strip relative to the blowing sectors to avoid any contact thereof with the walls of the devices of the cooling zone without modifying the cooling curve.
