Abstract: Burner comprising an inner fluid supply unit and an outer fluid supply unit, wherein the inner fluid supply unit comprises a first inner fluid ejection element, a second inner fluid ejection element encompassing the first inner fluid ejection element and a third inner fluid ejection element encompassing the second inner fluid ejection element and wherein the inner fluid supply unit is configured for ejecting a first oxidant, a second oxidant and a fuel. The outer fluid supply unit comprises at least two outer fluid ejection elements, arranged at a specific radial distance from the inner fluid supply unit, wherein each individual outer fluid ejection element is configured for ejecting the first oxidant and the second oxidant by means of a central fluid ejection element and an encompassing fluid ejection element encompassing the central fluid ejection element.

Abstract: A burner is provided which includes a tile surrounding an opening of the tile extending along a burner axis, the tile including a front side and a rear side, wherein the rear side has an air inlet connected to the opening for feeding air into the opening, and the front side has a discharge outlet connected to the opening for discharging a flame into a surrounding area. The burner includes at least one oxygen lance extending along the burner axis in a first recess of the tile, and the oxygen lance having an ejection nozzle at an end region of the lance for ejecting oxygen, wherein the at least one oxygen lance is mounted with the ejection nozzle positioned along the burner axis to be adjustable between an uppermost position and a lowermost position via a zero-position in between the uppermost position and the lowermost position.

Abstract: A burner, particularly Low-NOx-burner, the method for generating a flame by combustion of a fuel, having a tile surrounding an opening of the tile extending along a burner axis, the tile further having a front side and a rear side facing away from the front side, wherein the rear side comprises an air inlet connected to the opening for feeding air into the opening, and wherein the front side having a discharge outlet connected to the opening for discharging a flame generated by the burner into a surrounding area, and wherein the tile further having an inside facing the opening as well as an outside facing away from the opening. The burner further has at least one oxygen lance extending along the burner axis in a first recess of the tile.

Abstract: The invention relates to a burner, particularly Low-NOx-burner, for generating a flame by combustion of a fuel, comprising: a tile (15, 15a, 15b) surrounding an opening (2, 2a, 2b) of the tile (15, 15a, 15b) extending along a burner axis (12), the tile (15, 15a, 15b) further comprising a front side (20) and a rear side (21) facing away from the front side (20), wherein the rear side (21) comprises an air inlet (10, 10a, 10b) connected to said opening for feeding air (A, A?, A?) into said opening (2, 2a, 2b), and wherein said front side (20) comprises a discharge outlet (9, 9a, 9b) connected to said opening (2, 2a, 2b) for discharging a flame (30) generated by the burner (1) into a surrounding area (S), and wherein the tile (15, 15a, 15b) further comprises an inside (22) facing said opening (2, 2a, 2b) as well as an outside (23) facing away from said opening (2, 2a, 2b).

Abstract: The invention relates to a burner, particularly Low-NOX-burner, for generating a flame by combustion of a fuel, comprising: a tile (15, 15a, 15b) surrounding an opening (2, 2a, 2b) of the tile (15, 15a, 15b) extending along a burner axis (12), the tile (15, 15a, 15b) further comprising a front side (20) and a rear side (21) facing away from the front side (20), wherein the rear side (21) comprises an air inlet (10, 10a, 10b) connected to said opening for feeding air (A, A?, A?) into said opening (2, 2a, 2b), and wherein said front side (20) comprises a discharge outlet (9, 9a, 9b) connected to said opening (2, 2a, 2b) for discharging a flame (30) generated by the burner (1) into a surrounding area (S), and wherein the tile (15, 15a, 15b) further comprises an inside (22) facing said opening (2, 2a, 2b) as well as an outside (23) facing away from said opening (2, 2a, 2b).

Abstract: A cold rolled strip (3) of aluminum is continuously transported along a transport path where a ramp of Direct Flame Impingement (DFI) burners (1) are located, for heating the strip. The ramp (1) is located perpendicular, or substantially perpendicular, to the direction of movement of the strip (3), the DFI burners (1) are mutually located such that the whole width of the strip (3) is heated to the same, or substantially the same, temperature. The velocity of the strip (3) passing the ramp and the heating power of the burners (1) are adapted to heat treat the strip (3) such that annealing of the strip is carried out and the heat treated strip is wound to a coil (5).

Abstract: A direct flame impingement burner including a metal block with a fuel inlet and an oxidant inlet and at least two outlet nozzles having a set of identical nozzle outlet openings. The oxidant inlet is connected with an oxidant chamber within the block that is connected with at least one oxidant outlet opening in the set of nozzle outlet openings by passageways of identical length and cross-sectional area. The fuel inlet is connected with a fuel chamber within the block that is connected with at least one fuel outlet opening in the set of nozzle outlet openings by passageways of identical length and cross-sectional area. The fuel gas pressure is equal over all corresponding fuel outlet openings in the set of openings in each nozzle, and the oxidant gas pressure is equal over all corresponding oxidant outlet openings in the set of openings in each nozzle.

Abstract: A method and a burner for combustion in a heating furnace of a fuel with an oxidant in the form of oxygen gas, wherein fuel and oxidant are supplied to a burner head. Fuel and oxidant, respectively, are injected via the burner head through at least two pairs of nozzles, wherein one nozzle pair is defined by a separate fuel nozzle and a separate oxidant nozzle. The nozzles of the nozzle pairs are uniformly distributed over the furnace-interior-facing surface of the burner and within the circumference of the burner head. An oxidant nozzle is provided on each side of a fuel nozzle.

Abstract: A cold rolled strip (3) of aluminum is continuously transported along a transport path where a ramp of Direct Flame Impingement (DFI) burners (1) are located, for heating the strip. The ramp (1) is located perpendicular, or substantially perpendicular, to the direction of movement of the strip (3), the DFI burners (1) are mutually located such that the whole width of the strip (3) is heated to the same, or substantially the same, temperature. The velocity of the strip (3) passing the ramp and the heating power of the burners (1) are adapted to heat treat the strip (3) such that annealing of the strip is carried out and the heat treated strip is wound to a coil (5).

Abstract: A method for the manufacture of extended steel products. The steel product is initially contaminated by oils and by at least one of organic and inorganic particles that are suspended or dissolved in the oils. Following the shaping of the steel product by working but before the subsequent treatment of the steel product, burners emit exhaust gases that interact directly with the surface of the steel product. The burners are driven by an oxidant that contains at least 80% oxygen by weight, whereby oils that are present on the product are vaporized and combusted. The exhaust gases interact with the surface of the steel product with a speed that is sufficiently high to blow away organic and/or inorganic particles from the surface of the steel product.

Abstract: A method and a burner for combustion in a heating furnace of a fuel with an oxidant in the form of oxygen gas, wherein fuel and oxidant are supplied to a burner head. Fuel and oxidant, respectively, are injected via the burner head through at least two pairs of nozzles, wherein one nozzle pair is defined by a separate fuel nozzle and a separate oxidant nozzle. The nozzles of the nozzle pairs are uniformly distributed over the furnace-interior-facing surface of the burner and within the circumference of the burner head. An oxidant nozzle is provided on each side of a fuel nozzle.

Abstract: A direct flame impingement burner including a metal block with a fuel inlet and an oxidant inlet and at least two outlet nozzles having a set of identical nozzle outlet openings. The oxidant inlet is connected with an oxidant chamber within the block that is connected with at least one oxidant outlet opening in the set of nozzle outlet openings by passageways of identical length and cross-sectional area. The fuel inlet is connected with a fuel chamber within the block that is connected with at least one fuel outlet opening in the set of nozzle outlet openings by passageways of identical length and cross-sectional area. The fuel gas pressure is equal over all corresponding fuel outlet openings in the set of openings in each nozzle, and the oxidant gas pressure is equal over all corresponding oxidant outlet openings in the set of openings in each nozzle.

Abstract: A method for the manufacture of extended steel products. The steel product is initially contaminated by oils and by at least one of organic and inorganic particles that are suspended or dissolved in the oils. Following the shaping of the steel product by working but before the subsequent treatment of the steel product, burners emit exhaust gases that interact directly with the surface of the steel product. The burners are driven by an oxidant that contains at least 80% oxygen by weight, whereby oils that are present on the product are vaporized and combusted. The exhaust gases interact with the surface of the steel product with a speed that is sufficiently high to blow away organic and/or inorganic particles from the surface of the steel product.

Abstract: A composite lance for use during the injection of gases during combustion, and a method for making such a lance. The lance has a channel through which gas flows, and it includes a core of a metallic material and a ceramic layer outside the core. The outer surface of the core includes a region having a smaller diameter bounded axially by regions each having larger diameters. The ceramic layer is positioned around the core with a gap between the outer surface of the core and the inner surface of the ceramic layer. The gap prevents the ceramic layer from cracking because of differences in thermal expansion between the core and the ceramic layer when temperature changes take place in the lance.

Abstract: A method and apparatus for monitoring combustion of a fuel with an oxidant in an industrial furnace. The fuel and oxidant are supplied to a burner head, and a burner outlet flame is monitored by an ultraviolet light detector. At least one fuel channel and at least two oxidant channels are provided and open at an outer surface of the burner head that faces the interior of the furnace. The fuel channel and a first oxidant channel are located at a predetermined first distance from each other, and the fuel channel and the second oxidant channel are located closer to each other at a second distance. The detector is positioned at the fuel channel or at the second oxidant channel. A fraction of the total amount of oxidant supplied is supplied to the second oxidant channel, and oxidant is supplied to the second oxidant channel during the entire combustion process.

Abstract: A method for treatment of sludge is disclosed, wherein the sludge has a liquid part and metal-containing particles intermixed therein. The particles comprise metal, metal oxide or metal hydroxide and the method comprises the following steps: atomising the sludge; supplying the atomised sludge to a flame of a burner provided in a furnace; bringing the liquid part of the sludge to vaporize by means of the flame while maintaining said flame by means of a separate fuel supply; and bringing at least part of the metal-containing particles to melt by means of the flame. This provides an efficient method for taking care of waste material from plants in the steel or petrochemical industry, for example.

Abstract: A method for treatment of sludge is disclosed, wherein the sludge has a liquid part and metal-containing particles intermixed therein. The particles comprise metal, metal oxide or metal hydroxide and the method comprises the following steps: atomising the sludge; supplying the atomised sludge to a flame of a burner provided in a furnace; bringing the liquid part of the sludge to vaporise by means of the flame while maintaining said flame by means of a separate fuel supply; and bringing at least part of the metal-containing particles to melt by means of the flame. This provides an efficient method for taking care of waste material from plants in the steel or petrochemical industry, for example.