Abstract: The invention relates to a burner arrangement (1) in particular for heating or keeping warm, in particular casting stream protection devices and/or immersion casting devices of a continuous casting plant, comprising a reservoir (5) that can receive, in particular a shroud tube or an immersion tube, said reservoir comprising a base (6) and a cover (7). The wall (8) of the reservoir (5) is formed by at least one porous burner.

Abstract: A tubular flame burner, a combustion method, and combustion controller, are disclosed. Here, the tubular flame burner comprises: a tubular combustion chamber whose h one end is open; fuel-spraying nozzles and oxygen-containing-gas spraying nozzles. The respective nozzle orifices are formed in the inner face of the combustion chamber so that each spraying direction is in a neighborhood of a tangential direction of the inner circumferential wall of the combustion chamber. And an ignition device is disposed at a position r/2 from the tube axis of the combustion chamber (r: the radius of the combustion chamber). The length of the combustion chamber can be adjusted, the tubular flame burner is a multi-stage burner formed of multiple tubular flame burners, and a gap between the inner tube and the outer tube serves as a gas-flow path.

Abstract: Apparatus and methods for combustion of fuel. Some embodiments of the inventions include a fuel nozzle which injects fuel into a combustion channel of a wave rotor combustor or a pulse detonation combustor In some embodiments the combustion process includes a backward-propagating detonation wave within a substantially closed channel which compresses discrete quantities of combustible and noncombustible mixture. Yet other embodiments include a precombustion chamber integrated into the wave rotor, the outlet stator or both.

Abstract: To provide a boiler capable of realizing a reduction in O2, a reduction in NOx, and a reduction in CO. The present invention provides a boiler including: a premixed gas burner, and water tubes in close proximity to the premixed gas burner, characterized in that the premixed gas burner ejects a premixed gas toward the water tubes at a predetermined angle; and the boiler further includes a fuel supply portion capable of supplying at least one of a gas fuel and a premixed gas provided at a position on a downstream side of and spaced apart by a predetermined distance from the premixed gas burner.

Abstract: An apparatus for preparing an inorganic spheroidized particle, wherein an inorganic powder is fed from a feed pathway for an inorganic powder to a combustion flame in a powder melting furnace, and melted or softened and spheroidized, and wherein the apparatus comprises a powder dispersing plate in the feed pathway for an inorganic powder; and a process for preparing an inorganic spheroidized particle comprising the step of preparing inorganic spheroidized particles with the apparatus for preparing inorganic spheroidized particles as defined above. The inorganic spheroidized particle prepared by the above process and apparatus can be suitably used for a spherical molding sand, a filler, a pigment or the like, especially in the case where the inorganic spheroidized particle is a ceramics particle.

Abstract: A burner includes: a body defining an interior cavity; a burning surface located in the body and defining, at least in part, the interior cavity; a defusing surface located on an exterior portion of the body; ports on the body extending through the defusing and burning surfaces and configured to provide fluid communication between the interior cavity and ambient air outside the body; and an opening larger than at least one of the ports, the opening providing fluid communication between the interior cavity and a space outside of the body. A method of burning a gas and reducing acoustic feedback in a combustion device are also described.

Abstract: The invention relates to a method for heating a charge using a flame generated by a lance and/or a burner, characterized in that, in a first phase, the flame is directed towards the charge and in that, in a second phase, the flame is directed more or less parallel to the charge.

Abstract: Fuel is combusted with an oxidizer and at least one mainly inert gas, where the mainly inert gas is injected in the form of a divergently swirled jet around the flame and a convergently swirled jet surrounding the divergently swirled jet.

Abstract: Hot products of combustion are provided beside an outer surface of a load to be heated, and are given a non-uniform temperature profile in a control direction extending across the outer surface of the load. The non-uniform temperature profile of the hot products of combustion is varied within a range that is predetermined relative to the distance that the outer surface of the load extends in the control direction, whereby the load can be given a predetermined temperature profile in the control direction.

Abstract: A premix burner for producing an ignitable fuel/air mixture has a swirl generator with at least two burner shells (B) which complement one another to form a throughflow body, which in each case have a first burner shell section (1) with a partial cone shape and together enclose an axially conically widening swirl space and which mutually define, in the axial cone longitudinal direction, tangential air inlet slots (LS), through which the combustion feed air (L) passes into the swirl space, in which an axially spreading swirl flow forms, and includes fuel feeds which are arranged at least in sections along the tangentially running air inlet slots (LS).

Abstract: A portable, self-contained fire and water apparatus for decorative display. A fireplace for outdoor use in aquatic locations such as a pool, pond or lake. A device that produces a gas flame that burns on the waters surface. The device can be further be enhanced with optional ornamental or informational attachments such as a dragon igniting flaming waters or a sports team helmet floating in a pool surrounded by flames. A method of displaying a decorative or informational display employing a gas flame that burns on a waters surface.

Abstract: Inorganic fiber production burner apparatus and methods of use are disclosed. One burner includes a refractory block adapted to be in fluid connection with sources of primary oxidant and fuel, the refractory block having a fuel and primary oxidant entrance end and a flame exit end, the flame exit end having a substantially rectangular flame exit having a width greater than its height, the refractory block defining a combustion chamber and a second chamber fluidly connecting the combustion chamber and the flame exit end; and an oxygen manifold fluidly connected to the combustion chamber and adapted to route oxygen to the combustion chamber through a plurality of passages through the refractory block. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Abstract: A reactor air supply system including a first air inlet configured to receive air supplied from a first air supply. The system includes a burner having a burner nozzle configured to discharge fuel for mixing with the first air and configured to ignite the fuel/air mixture. A second air inlet is provided that is configured to receive heated air supplied from a second air supply, and a duct is provided to receive the ignited fuel/air mixture and the heated air supplied from the second air supply. The duct has an outlet configured to connect to a reactor. The duct is configured to receive the heated second air such that the heated second air mixes with the ignited fuel/air mixture at a location downstream of the burner.

Abstract: A method for the efficient conversion of heavy oil to distillates using sequential hydrocracking in the presence of both supported and colloidal catalyst immediately followed by a high temperature-short residence time thermal treatment. The hydrocracker reaction products or a heavy oil and hydrogen donor diluent may be advantageously heated by direct contact with high velocity combustion products.

Abstract: The present invention relates to a burner for a combustion chamber of a gas turbine plant. The burner includes a lance for introducing gaseous fuel into the burner. A shaft of the lance has at least one nozzle for introducing gaseous fuel into the burner. A main injection direction of the respective nozzle is oriented onto a portion of a burner wall. An introduction device for a diverting fluid is provided, which is designed for introducing a diverting fluid counteracting an impingement of the fuel flow on the burner wall.

Abstract: A method and apparatus relating to the combustion of a fuel with an oxidant in a heating furnace, wherein the fuel and the oxidant are delivered to a burner head. In a first method step fuel and oxidant are emitted from the burner head in close proximity to each other, so that combustion essentially takes place close to and at a small distance outward of the burner head, and until a temperature is reached in the furnace space that exceeds the spontaneous combustion temperature of the fuel. In a second method step the fuel and the oxidant are instead emitted from the burner head at a mutual distance apart, so that combustion takes place at a distance from the burner head corresponding to at least the diameter of the burner head and outward of the burner head.

Abstract: An animal and vegetable oils combustor, wherein primary air is introduced into a burner tile in the form of straight-ahead air flow moving straight ahead along the axial direction of the burner tile and secondary air is introduced in the form of swirl air flow moving along the inner surface of the side wall of the burner tile, whereby perfect combustion is liable to occur since a centrifugal force acts on liquid-drop fuel by swirl air flow to diffuse the fuel in the radial direction and the liquid-drop fuel does not take such a route as to be adhered to the inner wall even if char is included in the liquid drop fuel since the fuel is jetted after the grain size thereof is adjusted to small one beforehand.

Abstract: A method for burning gas in a burner, including leading the gas through an inner fuel tube (13) and introduction of combustion air through an annular space surrounding the inner fuel tube. This space forms of an outer tube (11) terminated by a conically converging section, wherein the end of the inner fuel tube forms a burner head (15). The major part of the primary gas is introduced into the upstream end of the burner head, to go into the combustion air that flows past the burner head, whereas a smaller part of a secondary gas is introduced into the free end of the burner head (15) and into the constricted part of the annular channel that surrounds the burner head. The gas flow is accelerated past the burner head due to the reducing cross section and is burned downstream in relation to the burning head, wherein the mixture has properties that reduces the formation of Nox at the same time as the combustion becomes complete. It is also described a burner for performing this method.

Abstract: Inorganic fiber production burner apparatus and methods of use are disclosed. One burner includes a refractory block adapted to be in fluid connection with sources of primary oxidant and fuel, the refractory block having a fuel and primary oxidant entrance end and a flame exit end, the flame exit end having a substantially rectangular flame exit having a width greater than its height, the refractory block defining a combustion chamber and a second chamber fluidly connecting the combustion chamber and the flame exit end; and an oxygen manifold fluidly connected to the combustion chamber and adapted to route oxygen to the combustion chamber through a plurality of passages through the refractory block. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Abstract: The invention relates to a flame burner having a nozzle (10) disposed in a head, wherein in addition to annularly disposed gas supply channels (11) the nozzle has a central gas supply opening (12), which has a laval nozzle-like region and a stabilizing region having a consistent diameter connected thereto in the flow direction. In order to flame burn a metallic surface the oxygen gas guided through a central nozzle of a flame burner is incited to oscillate in such a manner, such that a pulsating oxygen flow exiting the nozzle mouth is formed at the speed of sound, or at supersonic speed.

Abstract: Combustion systems having reduced nitrogen oxide emissions and methods of using the same are disclosed herein. In one embodiment, a combustion system is provided. The combustion system includes a combustion zone, which includes a burner for converting a fuel, under fuel rich conditions, to a flue gas. An intermediate staged air inlet is downstream from the combustion zone, for supplying intermediate staged air to the flue gas and producing fuel lean conditions. A reburn zone is downstream from the intermediate staged air inlet for receiving the flue gas. A process for using the combustion system and a method of reducing NOX flowing into the reburn zone of a combustion system are also described herein.

Abstract: A method for operating a fuel-fired furnace including at least one burner is provided. The method includes channeling a first fluid flow to the at least one burner at a first predetermined velocity, and channeling a second fluid flow to the at least one burner at a second predetermined velocity during a first mode of operation of the at least one burner. The second predetermined velocity is different than the first predetermined velocity.

Abstract: A glycerin burning system having a specialized atomizing burner capable of combusting a continuous feed of crude or pure glycerin. The burner includes a two-fluid mixing nozzle. The nozzle has an internal distributor which mixes two fluid feed streams as the fluids are expelled through an orifice. The distributor has channels which cause the air to swirl before mixing with the glycerin. An impingement pin is provided outside the orifice to diffuse the mixture and reduce combustion air speed. To improve performance, the burner's air feed line is subjected to combustion chamber to preheat the air passing through the feed line before the air is mixed with the glycerin.

Abstract: The present invention relates to a modular propane gas log burner for use in fireplaces that were originally designed as wood burning fireplaces. The present burner is designed for clean burning of propane fuel and is modular so that more than one burner can be used in combination in order to create a burner configuration for wider single-sided gas log sets, for deeper single-sided gas log sets, and for two-sided or see-through gas log sets. The burner is provided with means for adjusting the fuel-to-air ratio and for adjusting the position of the flames to allow the user to achieve realistic and clean burning flames.

Abstract: A low NOx burner system is disclosed that reduces the emission of CO and HC during cold furnace startups, minimizes NOx formation with preheated air, and provides a flat stable flame due to burner design improvements including three stage combustion. The burner system is designed to operate in either a low or high temperature mode by controlling the amount of combustion air provided to stage 1 and stage 2 combustion. The burner system is designed to heat the interior of a furnace for high-temperature combustion/furnace processes, such as aluminum melting and steel processes. The burner system can also be used for low temperature processes at temperatures below the auto-ignition temperature of the fuel and still produce very low CO, HC and NOx emissions.

Abstract: Heating provided by a burner that combusts hydrocarbon fuel can be provided at a sequence of different heat transfer rates by adjusting the total oxygen concentration of oxidant streams fed to the burner. A burner with which the method can be practiced is also disclosed.

Abstract: The present invention relates to a method and a device for affecting thermoacoustic oscillations in a combustion system (i) comprising at least one burner (2) and at least one combustor (3), modulated injection of fuel being carried out. In order to improve the action of affecting the thermoacoustic oscillations, the modulated injection of the fuel is carried out into a recirculation zone (7) which forms in the combustor (3).

Abstract: Burner device (2) for an industrial furnace (1) comprising a channel (3) for fuel, a channel (4) for a first oxidant, an outlet (9) for flue gases, a control device (10) and a heat buffer (7), where the first oxidant and the flue gases alternatingly are led through the heat buffer (7). The invention is characterised in that a separate lancing device (6) is arranged to supply a second oxidant to the burner device (2).

Abstract: The invention relates to a method for calcination of a material in which said material is heated by contact with a heat source essentially generated by means of a flame produced with at least one flow of fuel and primary air and a flow of secondary air, the flame comprising a first combustion zone with a temperature below 1500° C. and a second combustion zone with a temperature above 1500° C., where at least one flow of at least one inert gas is injected into the flame at the beginning of the second combustion zone and/or at least one flow of oxygen or a gas enriched in oxygen is injected into the second combustion zone.

Abstract: A method and an apparatus are provided for the combustion of gaseous fuel containing hydrogen or consisting of hydrogen, with a burner which provides a swirl generator, into which liquid fuel is fed centrally along a burner axis, at the same time forming a conically shaped liquid fuel column which is surrounded by a rotating combustion air stream which flows tangentially into the swirl generator and into which, additionally, a gaseous and/or liquid fuel is injected so as to form a fuel/air swirl flow which is transferred downstream of the swirl generator, along a transitional portion, into a mixing zone following the transitional portion downstream and which is ignited and burnt in a combustion chamber following downstream, at the same time forming a backflow zone.

Abstract: A lean premixed, radial inflow, multi-annular staged nozzle for creating three independent combustion zones within a can-annular, dual-fuel gas turbine combustor is provided. The nozzle includes a pilot zone fueled by a gas pilot nozzle and center cartridge; a flame holder zone fueled by an inner main gas fuel; a main flame zone fueled by an outer main gas fuel; a main radial swirler for mixing a portion of incoming air to the nozzle with the inner main gas fuel supply and the outer main gas fuel supply; an endcover; and means for controlling the ratio of an inner main gas fuel supplied and an outer main gas fuel supplied.

Abstract: A method for oxy-fuel combustion, the method comprising the steps of: introducing a liquid fuel into an emulsion chamber through a liquid fuel conduit having an effective diameter, the emulsion chamber having a length that is 2 times or less than 2 times of said effective diameter of said liquid fuel conduit; introducing an atomizing gas into the emulsion chamber through at least one atomizing gas conduit; mixing the liquid fuel and the atomizing gas in said emulsion chamber to create an emulsion mixture that has a mean residence time in said emulsion chamber of from 500 to 800 ?s, the emulsion mixture having an emulsion mixture velocity less than or equal to 12 m/s; and discharging said emulsion mixture through a generally rectangular-shaped orifice into an oxygen-enriched oxidizer stream. A nozzle and burner for oxy-fuel combustion are also disclosed.

Abstract: A flameless combustion heater is described that comprises an oxidation conduit and a fuel conduit having a plurality of centralizers attached to the external wall of the fuel conduit wherein at least one centralizer or portion of a centralizer is angled with respect to the longitudinal axis of the fuel conduit.

Abstract: Emissions of NOx and CO are reduced from combustion devices such as coal-fired furnaces by increasing the stoichiometric ratio of burner(s) having a lower average temperature and increasing the stoichiometric ratio of burner(s) having a higher average temperature.

Abstract: Methods for cyclone boiler flame diagnostics and control, including methods for monitoring the operating state of a cyclone furnace using linear and nonlinear signal analysis techniques, including temporal irreversibility and symbol sequence. Adjustments may be made in the air flow distribution to optimize performance. Signals for the main flame and lighter scanners are relatively independent, thereby allowing for independent control of the primary air flow to the burner and secondary air flow to the barrel.

Abstract: A direct gas-fired burner assembly is disclosed in which a two-stage flame is produced. A gas manifold is attached to two baffles with apertures disposed therein. The apertures are designed such that a fuel rich zone occurs near the manifold, while a lean zone occurs away from the manifold. At high fire, the apertures create a negative pressure zone which draws the gas away from the burner thereby allowing a primary flame to burn. The primary flame in the fuel rich zone ignites a secondary flame in the lean zone. Because a flame is burning throughout the entire combustion zone, the flame does not move out past the baffles, the flame remains smaller and cooler, and a lower output of pollutants is achieved.

Abstract: Torch lamp systems and flame lamp assemblies for producing swirling flames are disclosed herein. In one embodiment, a flame lamp assembly for providing a flame having a continuous spiral movement can include a plurality of spaced apart panels and a frame for supporting the panels to form a chamber for housing the flame. The frame can support the panels such that adjacent panels are spaced apart at panel junctions to create a plurality of air intake slots. The plurality of air intake slots can be in communication with the chamber to allow air to flow from an external environment into the chamber at an angle to provide vortical air flow within the chamber. The assembly can also include a burner assembly configured to receive fuel from a fuel source and to provide a fuel flow from a fuel release point to the chamber for ignition to provide the flame.

Abstract: A steam generating boiler having a matrix means for reducing combustion volume. Matrix means is placed in the combustion furnace of a steam generating boiler, preferably downstream of fuel and oxidant stream. Matrix means produces a shorter combustion envelope than that of a conventional boiler, allowing for reduced volume steam generating boilers.

Abstract: A fuel nozzle sheath has a lateral opening for admitting air about a nozzle stem. The stress distribution along the perimeter of the window is smoothed out by increasing the corner radius of the window corner presenting higher stress concentration.

Abstract: A fuel injector and a combustor including a fuel injector that enables a combustor to burn a lean fuel/oxider gas mixture while providing low emissions of oxides of nitrogen (NOx), and a method of combustion. The fuel injector includes three fuel/oxider flow path channels. The first channel includes a flow balancing insert and provides a relatively straight flow. The second channel includes at least one angled vane that imparts a swirl to the flow. The third channel is a central tube, the first channel annularly surrounding the third channel, the second channel annularly surrounding the first channel.

Abstract: A method for embodying a low flame-spread coil incense comprises a plurality of coils, radiuses of which are extended outward coil by coil, connected with each other, and between the coils being provided with a specific radial distance. After lighting the coil incense, its bottom is contactingly placed on a refractory material so as to lower flaming temperature for controlling flame spreading time, thereby greatly reducing the quantity of manufacturing material in the condition of having a specific flaming time. Furthermore, by using some characteristics, such as the specific gravity of tar is greater than that of smoke and the condensing effect of the refractory material, the tar may attachably deposit on the refractory material for effectively lowering the smoke quantity.

Abstract: Combustion equipment of a coaxial jet combustion scheme is provided that includes: a burner plate in which fuel and air are mixed with each other while the fuel and air pass through an air hole; a burner plate extension which is a portion of the burner plate and extends toward a combustion chamber side spaced apart from the air hole; and a protrusion disposed on the combustion chamber side of the burner plate extension so as to protrude in a direction where flow of the fuel moves. In the combustion equipment, a gap between opposite portions of the protrusion is greater than a diameter of the air hole and a flame source forming area is defined between the burner plate, the burner plate extension and the protrusion. The combustion equipment of a coaxial jet combustion scheme can achieve a further reduction in NOx emissions.

Abstract: Ovens for heat treating products may include a gas power burner having a burner tube assembly, a venturi tube assembly, and a blower mount. The burner tube assembly has a plurality of air inlet holes extending from an outer surface to an inner surface of the burner tube. The blower mount has an opening spaced from the outer surface of the burner tube for receiving a flow of combustion air directed in a first direction toward the burner tube. The opening of the blower mount is disposed out of axial alignment with the plurality of air inlet holes such that a portion of the burner tube and the blower mount form an air manifold for redirecting the flow of combustion air from the first direction around the burner tube and towards the air inlet holes. Methods for delivering air to a gas power burner are also disclosed.

Abstract: The invention relates to a method for operating an internal combustion engine including a fuel-injection unit and a laser ignition-unit. According to the invention, during a compression cycle of the internal combustion engine, fuel is injected into the combustion chamber by means of the fuel-injection unit in such a way that an ignitable, round, flat mixed region of fuel and air forms on a plunger and a predetermined period elapses between the end of the fuel injection and the start of ignition in order to form the round flat mixed region. Ignition then takes place within the flat round mixed region by means of the laser-ignition unit.

Abstract: A new burner apparatus and method of combusting fossils fuels for commercial and industrial application is provided wherein the new burner apparatus achieves low NOx emissions by supplying oxygen to the center of the burner flame in as manners so as to create a fuel rich internal combustion zone within the burner flame.

Abstract: A burner has a port facing into a combustion chamber along an axis. A secondary fuel injector structure has secondary fuel injection ports that face into the combustion chamber at locations spaced radially outward from the burner port. A tertiary fuel injector structure has tertiary fuel injection ports that face into the combustion chamber in directions perpendicular to the axis at locations spaced axially downstream from the secondary fuel injection ports.

Abstract: A combustion burner resulting in low oxides of nitrogen includes a primary combustion zone, for use as an ignition source. The primary combustion zone locating within a combustion chamber, and being separated from the base of the combustion chamber by a wall. A burner provides a secondary oxidant stream that is delivered to the combustion chamber at the base of an exterior wall, to entrain and mix with flue gases present in the combustion chamber. Then secondary fuel is injected into the resulting secondary oxidant-flue gas mixture. Combustion of the secondary fuel with the oxidant flue gas mixture results in lower concentration of oxides of nitrogen emitted to the atmosphere.

Abstract: The efficiency of selective non-catalytic reduction reactions for converting NOx in a flue gas to molecular nitrogen is improved by producing the flue gas from combustion of fuel with oxidant having an oxygen concentration above that of air.

Abstract: The melting of glass batch materials by at least one sub merged burner generating a flame within the molten batch materials. At least one gas inlet separate from the burner is close enough to the burner to interact with the flame. The separate influx interacts with the flame of the burner to regulate it, thereby reducing the risk of molten materials entering the burner.

Abstract: A multifunction injector (10, 11, 12) comprising a De Laval nozzle (20) adapted to act as a burner at subsonic or supersonic speed, combined with a plurality of nozzles (31, 32) for fuel and comburant respectively, arranged in two rings, concentric and co-axial to said De Laval nozzle (20) and externally protected by a specifically shaped protection cavity (40).