USRE33464E - Method and apparatus for flame generation and utilization of the combustion products for heating, melting and refining - Google Patents
Method and apparatus for flame generation and utilization of the combustion products for heating, melting and refining Download PDFInfo
- Publication number
- USRE33464E USRE33464E US07/306,816 US30681689A USRE33464E US RE33464 E USRE33464 E US RE33464E US 30681689 A US30681689 A US 30681689A US RE33464 E USRE33464 E US RE33464E
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- oxidizing gas
- combustion chamber
- oxygen
- fuel
- combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/02—Regulating fuel supply conjointly with air supply
- F23N1/022—Regulating fuel supply conjointly with air supply using electronic means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
- B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
- B05B7/0861—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with one single jet constituted by a liquid or a mixture containing a liquid and several gas jets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
- B05B7/20—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed by flame or combustion
- B05B7/201—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed by flame or combustion downstream of the nozzle
- B05B7/205—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed by flame or combustion downstream of the nozzle the material to be sprayed being originally a particulate material
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/235—Heating the glass
- C03B5/2353—Heating the glass by combustion with pure oxygen or oxygen-enriched air, e.g. using oxy-fuel burners or oxygen lances
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
- F23G5/16—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/32—Incineration of waste; Incinerator constructions; Details, accessories or control therefor the waste being subjected to a whirling movement, e.g. cyclonic incinerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/50—Control or safety arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
- F23G7/065—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M5/00—Casings; Linings; Walls
- F23M5/08—Cooling thereof; Tube walls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2207/00—Control
- F23G2207/10—Arrangement of sensing devices
- F23G2207/101—Arrangement of sensing devices for temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2207/00—Control
- F23G2207/10—Arrangement of sensing devices
- F23G2207/102—Arrangement of sensing devices for pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2207/00—Control
- F23G2207/20—Waste supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2207/00—Control
- F23G2207/30—Oxidant supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2207/00—Control
- F23G2207/40—Supplementary heat supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2900/00—Special features of, or arrangements for incinerators
- F23G2900/50007—Co-combustion of two or more kinds of waste, separately fed into the furnace
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2900/00—Special features of, or arrangements for incinerators
- F23G2900/55—Controlling; Monitoring or measuring
- F23G2900/55002—Sensing exhaust gas opacity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2900/00—Special features of, or arrangements for incinerators
- F23G2900/55—Controlling; Monitoring or measuring
- F23G2900/55006—Measuring material flow rates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2900/00—Special features of, or arrangements for incinerators
- F23G2900/55—Controlling; Monitoring or measuring
- F23G2900/55007—Sensors arranged in waste loading zone, e.g. feed hopper level
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
- F23L2900/07005—Injecting pure oxygen or oxygen enriched air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
- F23N2005/181—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using detectors sensitive to rate of flow of air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
- F23N2005/185—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using detectors sensitive to rate of flow of fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2221/00—Pretreatment or prehandling
- F23N2221/12—Recycling exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2223/00—Signal processing; Details thereof
- F23N2223/08—Microprocessor; Microcomputer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2223/00—Signal processing; Details thereof
- F23N2223/44—Optimum control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/04—Measuring pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/04—Measuring pressure
- F23N2225/06—Measuring pressure for determining flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/08—Measuring temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/08—Measuring temperature
- F23N2225/10—Measuring temperature stack temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2233/00—Ventilators
- F23N2233/06—Ventilators at the air intake
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
- F23N2235/16—Fuel valves variable flow or proportional valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2237/00—Controlling
- F23N2237/24—Controlling height of burner
- F23N2237/28—Controlling height of burner oxygen as pure oxydant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2237/00—Controlling
- F23N2237/24—Controlling height of burner
- F23N2237/32—Nox
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
- F23N5/08—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
Definitions
- This invention relates to a method and apparatus for high temperature heating, melting, refining and superheating of materials, such as steel scrap, metals, ceramics or glass.
- the method and apparatus disclosed may be used as the major source of energy and also as an assisting energy source in melting furnaces, industrial heating and heat treating furnaces, kilns, incinerator and other high temperature applications.
- the advantages of using essentially pure oxygen for combustion include: high flame temperature, good combustion stability, and a significant reduction of wasting heat with hot flue gases.
- the disadvantages of oxygen include its high cost and the necessity to cool the oxygen-fuel burner body.
- the first two techniques of oxygen injection are recommended for increasing liquid and solid flame temperatures at glass melting furnaces or other high temperature furnaces where such fuel/air flames have sufficient dimensions and are located above the work being heated and are available for oxygen injection outside of the burner body.
- a high velocity oxy-fuel flame or an oxygen jet penetration into the core of a relatively cold oil or coal flame will superheat said core, therefore increasing the radiative heat flux of the micro-particles of carbon existing in such flame core without overheating the burner body.
- Oxygen enrichment of combustion air may be used for any fuel including hydrocarbon gases, particularly, natural gas.
- the oxygen enriched air burner has not found broad application for several reasons.
- Burners for combusting fuel with air are old in the art, and burners for combusting fuel with pure oxygen (oxy-fuel) or oxygen enriched air are well known.
- the current state of the art burners do not operate satisfactorily across the full range of temperatures useful in high temperature heating, and do not allow for economical operation through control of flame chemistry, temperature, velocity and luminosity.
- Burners designed for use with hot air or oxygen enriched air typically use refractory tiles in the burners for continuous igniting of gases to stabilize the flame.
- refractory tiles cannot be used, and such burners are internally water or air cooled. The elimination of the burner tiles results in flame instability at lower temperatures and therefore limits the turn-down ratio of oxygen enriched air burners.
- an oxygen-fuel flame or an oxygen enriched air-fuel flame is not emissive. To be able to transfer heat, the flame would therefore have to touch the product being heated. This can create a problem with product distortion and oxidation.
- oxygen enriched air burners are caused by the fact that using oxygen enriched air makes the combustion of fuel faster and less controllable inside of traditionally designed burning devices. These typically have a refractory lined combustion tunnel and use relatively lazy mixing techniques based on the low pressure of oxygen enriched air, the flow of which can be regulated by a traditional gas/air ratio regulator.
- the total cost (operating and capital) of transferring of each BTU into a product being heated varies for each particular application as a function of temperature. As the temperature of the product increases, it becomes more expensive to transfer additional BTU's from the source of energy into the product being heated.
- the same amount of hydrocarbon fuel being combusted by various combustion devices at the same furnace temperature conditions may result in a different total heat flux being directed from the flame toward the work being heated. This is caused by different flame chemistry, temperature, luminosity and velocity resulting in different convective and radiative heat flux and by the influence of additional heat input from chemical reaction which may take place between work material and combustion gases.
- the least expensive way to accomplish heat transfer to the product at the low temperature stage of the heating cycle is to increse the flame velocity to increase the conventive heat flux from the source of energy to the product being heated.
- the most efficient way of heat transfer is to increase the flame temperature and flame luminosity to increase the radiative heat flux from the source of energy to the product. Raising the temperature of the flame increases the convection heat flux by the first power, but increases the radiative heat flux by the fourth power. Hence, oxygen utilization is more efficient during the high temperature period.
- This changing of the flame, to go from convective heating to radiative heating, is accomplished in this invention by continuously optimizing the fuel-air-oxygen flame chemistry to control temperature, velocity, luminosity and heat input.
- Optimization by the invented combustion process is due to a more controllable oxidation of the fuel stream by mixing said fuel stream with two different oxygen and/or air based oxidizing gases, having continuous control of the process oxidizing capability, and by having said two oxidizing streams separately contact and mix with the fuel stream being burned inside of the intensively liquid cooled combustion chamber of the combustion device.
- Controllable variation of proportions of air and oxygen contained in said two different oxidizing gases during the firing cycle provides a new method of controlling the flame characteristics independent of the firing rate. This makes it possible to maximize the efficiency of heat transfer from the flame toward the work being heated by, for instance, increasing the flame velocity and, therefore, convective heat transfer during a low temperature period of the heating cycle, and by increasing the flame luminosity during a high temperature period of the heating cycle.
- excess oxidizing mixture or pure oxygen can be directed toward the hot zone of the product being heated to generate intensive exothermic reactions on the surface and inside the product.
- metallurgical oxygen can be introduced with supersonic velocity, or under high pressure, along the central line of the flame pattern so as to deliver a concentrated oxygen stream to the hottest zone of the work surface being heated by the flame pattern.
- Utilization of the present invention for metal scrap heating, melting and refining includes the steps of: initial heating of scrap pile with a fluid fuel-air flame with some oxygen being introduced inside the flame core for mixing with the fluid fuel to form a stable combustion zone, which is used as a continuous ignitor during the combustion step, with the total oxygen/fuel ratio near stoichiometric; increasing the oxygen/air ratio to raise the flame temperature with the total oxygen/fuel ratio still close to stoichiometric; introducing through the fluid fuel-air-oxygen flame a jet of excess oxygen directed to the hot scrap pile when it is preheated above 1600° F., to start exothermic oxidation reactions to accelerate scrap melting; heating the molten metal during refining with a fluid fuel-air flame (or a fluid fuel-air-oxygen flame); refining the molten metal by oxidation of the molten metal with a jet of excess metallurgical oxygen directed through the fluid-air flame (or the fluid fuel-air-oxygen flame) toward the molten metal with
- the very high rate of reaction of the gas with the oxygen provides a very intensive heat release inside the combustion chamber which results in a high level of combustion gases expansion prior to leaving the combustion chamber, therefore providing a very high flame velocity.
- the control system of the flame generator is capable of recognizing this problem through continuous air flow sensors and reacting properly by increasing oxygen flow to make up for the air deficiency and to create a hotter flame in order to melt through material blocking the burner outlet. Similar problems can occur during the period of excess oxygen blowing if oxygen flow is affected by scrap aerodynamic resistence.
- FIG. 1 is a side cross-sectional view through the center of a flame generator illustrating a first embodiment of the invention.
- FIG. 2 is a rear cross-sectional view of the flame generator of FIG. 1, taken along line II--II of FIG. 1.
- FIG. 3 is a side cross-sectional view through the center of a flame generator illustrating a second embodiment of the invention.
- FIG. 4 is a rear cross-sectional view of the flame generator of FIG. 3, taken along line IV--IV of FIG. 3.
- FIG. 5 is a schematic diagram of the control system for a first embodiment of the invention.
- FIG. 6 is a schematic diagram of the control system for a second embodiment of the invention.
- FIGS. 1 and 2 show a first embodiment of the flame generator 1, which comprises a generator combustion block 2.
- a water cooling jacket 3 surrounds the generator combustion block 2, and has a water inlet 4 and outlet 5 located next to each other, and a dividing plate 6 between the inlet 4 and the outlet 5 to cause the cooling water to circulate around the combustion block 2.
- An oxygen conduit 7 connects to the oxygen channel 8 through the combustion block 2 for introducing oxygen into the combustion chamber 9 of the combustion block.
- a fluid fuel conduit 10 provides a fluid fuel to a plurality of fuel channels 11 through the combustion block 2, said channels spaced symmetrically around the oxygen channel 8 angled to direct the fuel to a point on the center line of the combustion block within the combustion zone 9.
- the oxygen channel may have a converging-diverging nozzle 17 for directing a supersonic jet of oxygen to a product being heated.
- an air supply conduit 13 provides air to a plurality of air channels 14 through the combustion block 2.
- the air channels 14 are symmetrically spaced and tangentially directed into the combustion chamber with openings on the face of the combustion zone 9.
- gas introduced through openings 14 will serve to protect the wall of the combustion chamber from the high temperature combustion product and also to protect the flame from cooling by contact with the liquid cooled body, by creating a thin gas film between the wall and the combustion product.
- combustion block 2 may be further cooled by the passing of cool air through the air channels 14 and cool fuel through the fuel channels 11 as they are introduced into the combustion chamber 9.
- a slot 15 is provided to the cooling jacket 3 for evacuation of air and steam bubbles.
- Flange 16 provides a means for affixing the flame generator to a furnace.
- Oxygen channel 8 can have a multiplicity of holes at the nozzle. This option increases the flexibility of the flame generator to vary the properties of the flame and the excess oxygen jet directed through the central portion of the combustion chamber.
- conduit 7 it can be beneficial to introduce fuel as the central stream through conduit 7 and oxygen or air-oxygen mixture through conduit 11 to maximize the flame length or emissivity.
- FIGS. 3 and 4 show a second embodiment of a flame generator 20. Similar to the previous embodiment, this embodiment includes a combustion block 21, a water cooling jacket 22 with water passages 26. Additionally, the fuel conduit 27, fuel channels 28, oxygen conduit 31 and oxygen channel 32 are similar to the previous embodiment. Air introduction is accomplished through a channel 29 which goes through the combustion block 21 and directs the air tangential to the inner surface of the combustion channel 9. Also, a second oxygen conduit 23 supplies oxygen through channel 24 through the top of the combustion block along its length until the passage turns downward and opens near the opening of the combustion block such that oxygen may be directed in a stream out of the combustion chamber angled downward with respect to the centerline of the flame generator 20. This opening may comprise a converging-diverging nozzle 25 for producing a supersonic jet of oxygen.
- FIG. 5 shows the control system for the first embodiment of the flame generator.
- cooling water is supplied from a water supply line to water inlet 4 then around the combustion block 2 inside the water jacket and escapes through outlet 5.
- the required cooling rate is controlled by thermometer 33 and pressure gauge 34.
- said block is made of copper or other material with very high thermal conductivity.
- fuel is delivered from fuel supplying line 35 through valve 36, flowmeter 37 and controlling valve 38 to the flame generator 1 and then through fuel conduit 10 and the plurality of fuel channels into the combustion chamber.
- the oxidizer is delivered into the combustion chamber by different ways depending on whether the process is in the stage of heating, melting or superheating. When the temperature of the material being heated is relatively low, the ratio of air/oxygen will be relatively high and an air jet is delivered from blower 39, through flow meter 40, controlling valve 41, air conduit 13 and the plurality of air channels, into the combustion chamber.
- an oxygen jet can be delivered from oxygen line 42 into the combustion chamber by any or both of the following two ways: first, through valve 43, flow meter 44, controlling valve 45, oxygen conduit 7 and oxygen channel 8; and second, through valve 46, flow meter 47, controlling valve 48, air conduit 13, and the plurality of air channels 14.
- An automatic control device 49 controls the various instant flows of oxygen, air and fuel based on the current stage of the heating cycle as determined by certain sensors, such as temperature sensors, energy totalizers and timers.
- the control device may also include metering of instant fuel, air and oxygen flows to provide electrical inputs to the control device, which is preferably micro-processor programmed to control optimum flame characteristics throughout the heating cycle.
- FIG. 6 shows the second embodiment of the flame generator control system which provides additional flexibility to flame generator operation by making it possible to introduce a controllable amount of air into the first oxidizing gas through line 60, motorized valve 56, and solenoid 54 to oxygen conduit 31.
- This embodiment also makes it possible to change the flame pattern and flame luminosity by introducing a fuel stream along the central line of the combustion chamber through line 61 and solenoid 55 to conduit 31 instead of the first oxidizing gas, which is blocked by solenoid valve 50, and, at the same time, by introducing the first oxidizing gas into the combustion chamber about said central fuel stream through line 59 and solenoid valve 57 to conduit 27 instead of fuel, which is blocked by solenoid 53.
- a jet of excess oxygen will be directed through oxygen conduit 7 and oxygen channel 8, through the center of the flame filling the combustion chamber 9, toward the hot product for the generation of heat of oxidation reactions for melting purposes.
- the oxygen jet can be blown through a converging-diverging nozzle 17 with supersonic velocity. This will also reduce dilution of oxygen with the combustion product and the furnace atmosphere.
- a jet of excess oxygen can also be directed through the flame filling the combustion chamber 9 toward molten material for refining or other purposes.
- the velocity of this excess oxygen jet can be increased above sonic to improve the ability of the jet to penetrate into the molten material by use of a convergingdiverging nozzle.
- a fuel-air, fuel-oxygen, or fuel-air-oxygen flame can be directed at the molten material to heat the material about and inside the oxidation zone.
- the heat input, flame velocity, temperature, luminosity, shape of the flame envelope and the chemistry of the combustion product are controlled continuously by variation of the supply of fuel, air, and oxygen and also by variation of the ways these components are introduced into the combustion chamber, in order to satisfy the heating requirements with minimum operating costs.
- the amount of heat input from a burner is directly related to the amount of hydrocarbon fuel delivered into the burner.
- the invented process or apparatus provides oxygen to the combustion process either as pure oxygen or as air or a mixture of both. By controlling the ratio of fuel/total oxygen provided to the combustion process, the stoichiometric ratio at which complete combustion of the oxygen and fuel occurs may be maintained as desired to efficiently utilize the substance introduced into the burner.
- the temperature of the flame may be increased by causing the oxidizing gas to have a higher oxygen concentration. This is accomplished by varying the air and pure oxygen supplied to the burner to control the air/total oxygen ratio. Although supplying pure oxygen is clearly more expensive than the use of air, at some point in a process the higher flame temperature may be desirable to more efficiently transfer hear to the product.
- a highly emissive flame comes from the conversion of atomic carbon from the hydrocarbon fuel into highly emissive molecular carbon inside the core of the flame. This is accomplished in the present invention by providing initial mixing of pure oxygen with the fuel to conduct fuel pyrolysis in the core of the flame, the flame being isolated from the intensively cooled combustion chamber wall by a stream of a second oxidizer of lower oxygen concentration, such as air or an air/oxygen mixture. Therefore, by controlling the ratio of hydrocarbon fuel/oxygen in the center of the flame while maintaining all other parameters at the desired values, the emissivity of the flame may be controlled.
- NOx may be reduced by controlling and maximizing the ratio of air introduced to the outside of the flame/air introduced to the center of the flame, for any given total air content to be introduced into the combustion chamber.
- the burner described herein may utilize preheated air or a preheated air-oxygen mixture as an oxidizing gas. This may allow recovery of waste heat from the proess to provide the preheated air or a preheated air-oxygen mixture and make the operation more efficient.
Abstract
Description
Claims (59)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US07/306,816 USRE33464E (en) | 1984-08-17 | 1989-02-03 | Method and apparatus for flame generation and utilization of the combustion products for heating, melting and refining |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US06/642,141 US4622007A (en) | 1984-08-17 | 1984-08-17 | Variable heat generating method and apparatus |
US07/306,816 USRE33464E (en) | 1984-08-17 | 1989-02-03 | Method and apparatus for flame generation and utilization of the combustion products for heating, melting and refining |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US06/642,141 Continuation-In-Part US4622007A (en) | 1984-08-17 | 1984-08-17 | Variable heat generating method and apparatus |
US06/755,831 Reissue US4642047A (en) | 1984-08-17 | 1985-07-15 | Method and apparatus for flame generation and utilization of the combustion products for heating, melting and refining |
Publications (1)
Publication Number | Publication Date |
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USRE33464E true USRE33464E (en) | 1990-11-27 |
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US06/642,141 Expired - Lifetime US4622007A (en) | 1984-08-17 | 1984-08-17 | Variable heat generating method and apparatus |
US07/306,816 Expired - Lifetime USRE33464E (en) | 1984-08-17 | 1989-02-03 | Method and apparatus for flame generation and utilization of the combustion products for heating, melting and refining |
Family Applications Before (1)
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US06/642,141 Expired - Lifetime US4622007A (en) | 1984-08-17 | 1984-08-17 | Variable heat generating method and apparatus |
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US (2) | US4622007A (en) |
JP (1) | JPS62500010A (en) |
ZA (1) | ZA856242B (en) |
Cited By (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5427524A (en) * | 1993-06-07 | 1995-06-27 | Gas Research Institute | Natural gas fired rich burn combustor |
US5477685A (en) * | 1993-11-12 | 1995-12-26 | The Regents Of The University Of California | Lean burn injector for gas turbine combustor |
US5823762A (en) * | 1997-03-18 | 1998-10-20 | Praxair Technology, Inc. | Coherent gas jet |
US5904475A (en) * | 1997-05-08 | 1999-05-18 | Praxair Technology, Inc. | Dual oxidant combustion system |
US5927960A (en) | 1995-09-21 | 1999-07-27 | The Boc Group Plc | Burner |
US6143054A (en) | 1997-09-26 | 2000-11-07 | Technological Resources Pty Ltd. | Process of producing molten metals |
US6176894B1 (en) | 1998-06-17 | 2001-01-23 | Praxair Technology, Inc. | Supersonic coherent gas jet for providing gas into a liquid |
US6267799B1 (en) | 1995-04-07 | 2001-07-31 | Technological Resources Pty. Ltd. | Method of producing metals and metal alloys |
US6270553B1 (en) | 1996-12-18 | 2001-08-07 | Technological Resources Pty. Ltd. | Direct reduction of metal oxide agglomerates |
US6289034B1 (en) | 1998-08-28 | 2001-09-11 | Technologies Resources Pty. Ltd. | Process and an apparatus for producing metals and metal alloys |
US6322745B1 (en) | 1998-07-01 | 2001-11-27 | Technological Resources Pty. Ltd. | Direct smelting vessel and direct smelting process |
US6328783B1 (en) | 1996-12-18 | 2001-12-11 | Technological Resources Pty Ltd | Producing iron from solid iron carbide |
US6379424B1 (en) | 1999-10-26 | 2002-04-30 | Technological Resources Pty. Ltd. | Direct smelting apparatus and process |
US6379422B1 (en) | 1999-08-05 | 2002-04-30 | Technological Resources Pty. Ltd. | Direct smelting process |
US6387153B1 (en) | 1999-10-15 | 2002-05-14 | Technological Resources Pty Ltd | Stable idle procedure |
US6402808B1 (en) | 1998-07-24 | 2002-06-11 | Technological Resources Pty. Ltd. | Direct smelting process |
US6423115B1 (en) | 1999-01-08 | 2002-07-23 | Technological Resources Pty Ltd | Direct smelting process |
US6423114B1 (en) | 1999-08-10 | 2002-07-23 | Technological Resources Pty. Ltd. | Pressure control |
US6428603B1 (en) | 1999-09-27 | 2002-08-06 | Technological Resources Pty., Ltd. | Direct smelting process |
US6440195B1 (en) | 1998-10-14 | 2002-08-27 | Technological Resources Pty. Ltd. | Process and an apparatus for producing metals and metal alloys |
US20020127504A1 (en) * | 1999-04-19 | 2002-09-12 | Neville Thomas B. | Premix burner with firing rate control |
FR2823290A1 (en) | 2001-04-06 | 2002-10-11 | Air Liquide | COMBUSTION PROCESS INCLUDING SEPARATE INJECTIONS OF FUEL AND OXIDIZING AND BURNER ASSEMBLY FOR IMPLEMENTATION OF THIS PROCESS |
US6475264B1 (en) | 1998-07-24 | 2002-11-05 | Technological Resources Pty Ltd | Direct smelting process |
US6478848B1 (en) | 1998-09-04 | 2002-11-12 | Technological Resources Pty Ltd | Direct smelting process |
US6517605B1 (en) | 1999-07-09 | 2003-02-11 | Technological Resources Pty. Ltd. | Start-up procedure for direct smelting process |
US6585929B1 (en) | 1999-06-08 | 2003-07-01 | Technological Resources Pty Ltd | Direct smelting vessel |
US6602321B2 (en) | 2000-09-26 | 2003-08-05 | Technological Resources Pty. Ltd. | Direct smelting process |
US20060127831A1 (en) * | 2004-12-13 | 2006-06-15 | Kagi Thomas Sr | Waste oil multi-fuel fired burner |
US20070267786A1 (en) * | 2006-05-17 | 2007-11-22 | Higgins Christopher K | Methods of implementing a water-cooling system into a burner panel and related apparatuses |
US20070267787A1 (en) * | 2006-05-17 | 2007-11-22 | Higgins Christopher K | Methods of implementing a water-cooling system into a burner panel and related apparatuses |
US20090245319A1 (en) * | 2008-03-28 | 2009-10-01 | Air Liquide Advanced Technologies Us Llc | Burner/Injector Panel Apparatus |
US20090308331A1 (en) * | 2008-06-13 | 2009-12-17 | Air Products And Chemicals, Inc. | Oxygen control system for oxygen enhanced combustion of solid fuels |
US20090311642A1 (en) * | 2008-06-13 | 2009-12-17 | Air Products And Chemicals, Inc. | Oxygen Control System For Oxygen Enhanced Combustion |
US20100301129A1 (en) * | 2007-11-09 | 2010-12-02 | Marcus Brian Mayhall Fenton | Decontamination |
US8827176B2 (en) * | 2012-07-05 | 2014-09-09 | James A. Browning | HVOF torch with fuel surrounding oxidizer |
US9498787B2 (en) | 2007-11-09 | 2016-11-22 | Tyco Fire & Security Gmbh | Fire protection apparatus, systems and methods for addressing a fire with a mist |
Families Citing this family (117)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4878829A (en) * | 1988-05-05 | 1989-11-07 | Union Carbide Corporation | Fuel jet burner and combustion method |
US4907961A (en) * | 1988-05-05 | 1990-03-13 | Union Carbide Corporation | Oxygen jet burner and combustion method |
US5042964A (en) * | 1988-05-26 | 1991-08-27 | American Combustion, Inc. | Flash smelting furnace |
US5062789A (en) * | 1988-06-08 | 1991-11-05 | Gitman Gregory M | Aspirating combustion system |
WO1989012783A1 (en) * | 1988-06-17 | 1989-12-28 | American Combustion, Inc. | A method and apparatus for waste disposal |
JPH04500265A (en) * | 1988-09-02 | 1992-01-16 | アメリカン コンバスション インコーポレーテッド | Method and device for generating high luminescence flame |
US4969814A (en) * | 1989-05-08 | 1990-11-13 | Union Carbide Corporation | Multiple oxidant jet combustion method and apparatus |
US5108729A (en) * | 1989-10-02 | 1992-04-28 | Phillips Petroleum Company | Production of carbide products |
US5165916A (en) * | 1989-10-02 | 1992-11-24 | Phillips Petroleum Company | Method for producing carbide products |
US5000102A (en) * | 1989-12-21 | 1991-03-19 | Union Carbide Industrial Gases Technology Corporation | Method for combusting wet waste |
US5006141A (en) * | 1990-01-30 | 1991-04-09 | Air Products And Chemicals, Inc. | Thermally efficient melting for glass making |
US5174746A (en) * | 1990-05-11 | 1992-12-29 | Sumitomo Metal Mining Company Limited | Method of operation of flash smelting furnace |
US5057133A (en) * | 1990-07-02 | 1991-10-15 | Air Products And Chemicals, Inc. | Thermally efficient melting and fuel reforming for glass making |
US5413476A (en) * | 1993-04-13 | 1995-05-09 | Gas Research Institute | Reduction of nitrogen oxides in oxygen-enriched combustion processes |
US5439373A (en) * | 1993-09-13 | 1995-08-08 | Praxair Technology, Inc. | Luminous combustion system |
US5454712A (en) * | 1993-09-15 | 1995-10-03 | The Boc Group, Inc. | Air-oxy-fuel burner method and apparatus |
US5511728A (en) * | 1994-06-02 | 1996-04-30 | The Babcock & Wilcox Company | Dual fluid atomizer for high solids soil paste containing pebbles or agglomerates |
US5599375A (en) * | 1994-08-29 | 1997-02-04 | American Combustion, Inc. | Method for electric steelmaking |
US5714113A (en) * | 1994-08-29 | 1998-02-03 | American Combustion, Inc. | Apparatus for electric steelmaking |
US5554022A (en) * | 1994-10-14 | 1996-09-10 | Xothermic, Inc. | Burner apparatus and method |
US6170264B1 (en) | 1997-09-22 | 2001-01-09 | Clean Energy Systems, Inc. | Hydrocarbon combustion power generation system with CO2 sequestration |
US5611683A (en) * | 1995-08-04 | 1997-03-18 | Air Products And Chemicals, Inc. | Method and apparatus for reducing NOX production during air-oxygen-fuel combustion |
AT402963B (en) * | 1995-09-07 | 1997-10-27 | Voest Alpine Ind Anlagen | METHOD FOR BURNING FUEL |
AU5751996A (en) | 1996-05-17 | 1997-12-09 | Xothermic, Inc. | Burner apparatus and method |
US5681162A (en) * | 1996-09-23 | 1997-10-28 | Nabors, Jr.; James K. | Low pressure atomizer |
US6109062A (en) | 1996-10-08 | 2000-08-29 | Richards; Raymond S. | Apparatus for melting molten material |
DE69728191T2 (en) * | 1996-12-27 | 2005-01-13 | Sumitomo Osaka Cement Co., Ltd. | Apparatus and method for burning fuel |
US6125133A (en) * | 1997-03-18 | 2000-09-26 | Praxair, Inc. | Lance/burner for molten metal furnace |
GB9709205D0 (en) * | 1997-05-07 | 1997-06-25 | Boc Group Plc | Oxy/oil swirl burner |
US6200128B1 (en) * | 1997-06-09 | 2001-03-13 | Praxair Technology, Inc. | Method and apparatus for recovering sensible heat from a hot exhaust gas |
US6096261A (en) * | 1997-11-20 | 2000-08-01 | Praxair Technology, Inc. | Coherent jet injector lance |
DE19854390C2 (en) * | 1998-11-25 | 2001-10-31 | Messer Griesheim Gmbh | Device and method for pearlite production |
US6206684B1 (en) * | 1999-01-22 | 2001-03-27 | Clean Energy Systems, Inc. | Steam generator injector |
DE19909743A1 (en) * | 1999-03-05 | 2000-09-07 | Linde Tech Gase Gmbh | Burner, shaft furnace and method for operating a shaft furnace |
US6139310A (en) * | 1999-11-16 | 2000-10-31 | Praxair Technology, Inc. | System for producing a single coherent jet |
US6241510B1 (en) | 2000-02-02 | 2001-06-05 | Praxair Technology, Inc. | System for providing proximate turbulent and coherent gas jets |
US6247316B1 (en) | 2000-03-22 | 2001-06-19 | Clean Energy Systems, Inc. | Clean air engines for transportation and other power applications |
AU2001276823A1 (en) | 2000-05-12 | 2001-12-03 | Clean Energy Systems, Inc. | Semi-closed brayton cycle gas turbine power systems |
EP1160007B1 (en) * | 2000-05-31 | 2010-07-14 | Air Liquide Deutschland GmbH | Process for expanding vermiculite |
US6334976B1 (en) | 2000-08-03 | 2002-01-01 | Praxair Technology, Inc. | Fluid cooled coherent jet lance |
FR2816524A1 (en) * | 2000-11-15 | 2002-05-17 | Air Liquide | Installation for the manual flame assisted spray coating of components incorporating a safety trigger and control system to cut the flame in emergency situations |
US6400747B1 (en) | 2001-05-18 | 2002-06-04 | Praxair Technology, Inc. | Quadrilateral assembly for coherent jet lancing and post combustion in an electric arc furnace |
US6432163B1 (en) | 2001-06-22 | 2002-08-13 | Praxair Technology, Inc. | Metal refining method using differing refining oxygen sequence |
US6663381B2 (en) * | 2001-09-20 | 2003-12-16 | Carrier Corporation | Burner arrangement for low NOX emissions |
US6450799B1 (en) | 2001-12-04 | 2002-09-17 | Praxair Technology, Inc. | Coherent jet system using liquid fuel flame shroud |
EP1327821A1 (en) * | 2001-12-25 | 2003-07-16 | Matsushita Electric Industrial Co., Ltd. | Burner for hydrogen generation system and hydrogen generation system having the same |
US6604937B1 (en) | 2002-05-24 | 2003-08-12 | Praxair Technology, Inc. | Coherent jet system with single ring flame envelope |
US20030221455A1 (en) * | 2002-05-28 | 2003-12-04 | Scott Garrett L. | Method and apparatus for lubricating molten glass forming molds |
US6773484B2 (en) * | 2002-06-26 | 2004-08-10 | Praxair Technology, Inc. | Extensionless coherent jet system with aligned flame envelope ports |
TW529456U (en) * | 2002-06-27 | 2003-04-21 | Nanya Technology Corp | Pipeline for mixing |
US6736118B1 (en) * | 2002-11-14 | 2004-05-18 | William H. Velke | Fuel density reduction method and device to improve the ratio of oxygen mass versus fuel mass during ignition in combustion mechanisms operating with fluid hydrocarbon fuels |
US6999495B2 (en) * | 2002-12-19 | 2006-02-14 | Air Liquide America, Lp | Method and apparatus for spatial energy coverage |
JP3653266B2 (en) * | 2002-12-19 | 2005-05-25 | 山一金属株式会社 | Animal and vegetable oil combustion equipment |
JP2004203670A (en) * | 2002-12-25 | 2004-07-22 | Shin Etsu Chem Co Ltd | Method of processing preform of optical fiber, and device used in the same |
US6875398B2 (en) * | 2003-01-15 | 2005-04-05 | Praxair Technology, Inc. | Coherent jet system with outwardly angled flame envelope ports |
DE10309799A1 (en) * | 2003-03-05 | 2004-09-23 | Sgl Acotec Gmbh | Method and device for producing hydrogen chloride |
US7028622B2 (en) * | 2003-04-04 | 2006-04-18 | Maxon Corporation | Apparatus for burning pulverized solid fuels with oxygen |
US20040261676A1 (en) * | 2003-06-09 | 2004-12-30 | Choi Donald H | Utilization of exhaust heat for conversion of water to fuel |
US20050086724A1 (en) * | 2003-10-25 | 2005-04-28 | Marsh M. L. | Practical souvenir competition hats |
US20050241311A1 (en) | 2004-04-16 | 2005-11-03 | Pronske Keith L | Zero emissions closed rankine cycle power system |
US7430970B2 (en) * | 2005-06-30 | 2008-10-07 | Larue Albert D | Burner with center air jet |
WO2007021909A2 (en) * | 2005-08-10 | 2007-02-22 | Clean Energy Systems, Inc. | Hydrogen production from an oxyfuel combustor |
US8297529B2 (en) * | 2005-12-09 | 2012-10-30 | Utah State University | Directional jet flow control |
US20070231761A1 (en) * | 2006-04-03 | 2007-10-04 | Lee Rosen | Integration of oxy-fuel and air-fuel combustion |
US8696348B2 (en) * | 2006-04-26 | 2014-04-15 | Air Products And Chemicals, Inc. | Ultra-low NOx burner assembly |
US7628610B2 (en) * | 2006-05-01 | 2009-12-08 | Simeken, Inc. | Conical cyclonic oxidizing burner |
US7452401B2 (en) * | 2006-06-28 | 2008-11-18 | Praxair Technology, Inc. | Oxygen injection method |
WO2008076901A1 (en) * | 2006-12-15 | 2008-06-26 | Praxair Technology, Inc. | Injection method for inert gas |
FR2927148B1 (en) * | 2008-02-05 | 2010-02-19 | Saint Gobain | COMBUSTION PROCESS AND GASEOUS FUEL INJECTOR WITH LOW PRESSURE PERIPHERAL JETS CONVERTING TO A HIGH PRESSURE CENTRAL JET WITH LOW NOX EMISSION. |
US8142711B2 (en) * | 2009-04-02 | 2012-03-27 | Nu-Core, Inc. | Forged copper burner enclosure |
DE102010025562A1 (en) * | 2010-02-18 | 2011-08-18 | SMS Siemag AG, 40237 | Injector cooling block for holding at least one injector |
CH702999A1 (en) * | 2010-04-29 | 2011-10-31 | Amt Ag | A device for coating substrates by high-speed flame spraying. |
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US20120224601A1 (en) | 2011-03-01 | 2012-09-06 | Air Liquide Advanced Technologies U.S. Llc | Burner and/or injector panel apparatus, methods of installation and use of the same in a metal-melting furnace, and metal-melting furnace including the same |
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WO2015009300A1 (en) | 2013-07-18 | 2015-01-22 | Johns Manville | Fluid cooled combustion burner and method of making said burner |
GB201313654D0 (en) | 2013-07-31 | 2013-09-11 | Knauf Insulation Doo Skofja Loka | Melting of vitrifiable material |
GB201313652D0 (en) | 2013-07-31 | 2013-09-11 | Knauf Insulation Doo Skofja Loka | Melting of vitrifiable material |
GB201313656D0 (en) | 2013-07-31 | 2013-09-11 | Knauf Insulation Doo Skofja Loka | Melting of vitrifiable material |
GB201313651D0 (en) | 2013-07-31 | 2013-09-11 | Knauf Insulation Doo Skofja Loka | Melting of vitrifiable material |
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FI128199B (en) * | 2015-04-10 | 2019-12-13 | Nordautomation Oy | Arrangement in a rotary kiln and method for guiding air to a rotary kiln |
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Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1721381A (en) * | 1928-02-02 | 1929-07-16 | Gen Electric | Gas burner |
US3127156A (en) * | 1964-03-31 | Figure | ||
US3216714A (en) * | 1963-02-04 | 1965-11-09 | Bot Brassert Oxygen Technik Ag | Heating and blowing device for metallurgical purposes |
US3224486A (en) * | 1964-12-07 | 1965-12-21 | Lorant B Geller | Method and apparatus for producing air-fuel flames of sonic and supersonic velocities |
US3729285A (en) * | 1972-05-22 | 1973-04-24 | G Schwedersky | Burner and method of operating it to control the production of nitrogen oxides |
US3880571A (en) * | 1973-07-26 | 1975-04-29 | Trw Inc | Burner assembly for providing reduced emission of air pollutant |
US3889933A (en) * | 1974-02-28 | 1975-06-17 | Int Nickel Canada | Metallurgical lance |
US4017253A (en) * | 1975-09-16 | 1977-04-12 | The United States Of America As Represented By The United States Energy Research And Development Administration | Fluidized-bed calciner with combustion nozzle and shroud |
US4021191A (en) * | 1972-10-30 | 1977-05-03 | Aqua-Chem, Inc. | Reduction of pollutants in gaseous hydrocarbon combustion products |
US4278418A (en) * | 1975-12-15 | 1981-07-14 | Strenkert Lynn A | Process and apparatus for stoichiometric combustion of fuel oil |
US4342551A (en) * | 1980-05-23 | 1982-08-03 | Browning Engineering Corporation | Ignition method and system for internal burner type ultra-high velocity flame jet apparatus |
US4475885A (en) * | 1983-07-28 | 1984-10-09 | Bloom Engineering Company, Inc. | Adjustable flame burner |
US4521183A (en) * | 1981-11-12 | 1985-06-04 | Matsushita Electric Industrial Co., Ltd. | Cooking appliance |
US4525175A (en) * | 1983-05-31 | 1985-06-25 | Texaco Inc. | High turn down burner for partial oxidation of slurries of solid fuel |
US4541796A (en) * | 1980-04-10 | 1985-09-17 | Union Carbide Corporation | Oxygen aspirator burner for firing a furnace |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2368370A (en) * | 1943-05-26 | 1945-01-30 | Maxon Premix Burner Company | Gas burner |
US2398884A (en) * | 1943-12-15 | 1946-04-23 | Air Reduction | Gas torch |
US2458543A (en) * | 1945-04-24 | 1949-01-11 | Comb Processes Company | Low velocity gas burner |
US2655986A (en) * | 1950-08-23 | 1953-10-20 | Inland Steel Co | Burner of the projected flame type |
FR1226568A (en) * | 1959-02-21 | 1960-07-13 | Siderurgie Fse Inst Rech | Burner with stable flame and high heat concentration obtained by shock wave |
US3092166A (en) * | 1959-12-15 | 1963-06-04 | Air Reduction | Space heating method and apparatus |
GB967275A (en) * | 1961-03-08 | 1964-08-19 | Babcock & Wilcox Ltd | Improvements in combustion apparatus |
US3418062A (en) * | 1966-08-08 | 1968-12-24 | Bloom Eng Co Inc | Burner structures |
US3455514A (en) * | 1967-11-09 | 1969-07-15 | Dow Chemical Co | Metal removing torch tip |
US3545903A (en) * | 1969-03-12 | 1970-12-08 | United States Steel Corp | Burner for preheating a refractory lined vessel |
US3563683A (en) * | 1969-04-03 | 1971-02-16 | Selas Corp Of America | Industrial burner |
US3612738A (en) * | 1970-01-12 | 1971-10-12 | Air Prod & Chem | Metallurgical burner |
US3748082A (en) * | 1970-06-01 | 1973-07-24 | Air Liquide Sa Etude Exploit P | Method for cracking and burning hydrocarbons |
US3856457A (en) * | 1972-12-29 | 1974-12-24 | Air Prod & Chem | Burner of the oxy-fuel type |
DE2633719C2 (en) * | 1976-07-27 | 1986-06-26 | Linde Ag, 6200 Wiesbaden | Method for operating a cutting torch and nozzle for carrying out the method |
SU635361A1 (en) * | 1977-04-20 | 1978-11-30 | Сибирский Металлургический Институт Имени С.Орджоникидзе | Burner |
US4422624A (en) * | 1981-08-27 | 1983-12-27 | Phelps Dodge Corporation | Concentrate burner |
JPS5835224U (en) * | 1981-09-01 | 1983-03-08 | 株式会社明電舎 | butsing |
JPS5852904A (en) * | 1981-09-21 | 1983-03-29 | Osaka Gas Co Ltd | Method of burning |
US4473350A (en) * | 1982-06-24 | 1984-09-25 | The Cadre Corporation | Oxy-fuel burner |
-
1984
- 1984-08-17 US US06/642,141 patent/US4622007A/en not_active Expired - Lifetime
-
1985
- 1985-08-06 ZA ZA856242A patent/ZA856242B/en unknown
- 1985-08-12 JP JP60503669A patent/JPS62500010A/en active Pending
-
1989
- 1989-02-03 US US07/306,816 patent/USRE33464E/en not_active Expired - Lifetime
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3127156A (en) * | 1964-03-31 | Figure | ||
US1721381A (en) * | 1928-02-02 | 1929-07-16 | Gen Electric | Gas burner |
US3216714A (en) * | 1963-02-04 | 1965-11-09 | Bot Brassert Oxygen Technik Ag | Heating and blowing device for metallurgical purposes |
US3224486A (en) * | 1964-12-07 | 1965-12-21 | Lorant B Geller | Method and apparatus for producing air-fuel flames of sonic and supersonic velocities |
US3729285A (en) * | 1972-05-22 | 1973-04-24 | G Schwedersky | Burner and method of operating it to control the production of nitrogen oxides |
US4021191A (en) * | 1972-10-30 | 1977-05-03 | Aqua-Chem, Inc. | Reduction of pollutants in gaseous hydrocarbon combustion products |
US3880571A (en) * | 1973-07-26 | 1975-04-29 | Trw Inc | Burner assembly for providing reduced emission of air pollutant |
US3889933A (en) * | 1974-02-28 | 1975-06-17 | Int Nickel Canada | Metallurgical lance |
US4017253A (en) * | 1975-09-16 | 1977-04-12 | The United States Of America As Represented By The United States Energy Research And Development Administration | Fluidized-bed calciner with combustion nozzle and shroud |
US4278418A (en) * | 1975-12-15 | 1981-07-14 | Strenkert Lynn A | Process and apparatus for stoichiometric combustion of fuel oil |
US4541796A (en) * | 1980-04-10 | 1985-09-17 | Union Carbide Corporation | Oxygen aspirator burner for firing a furnace |
US4342551A (en) * | 1980-05-23 | 1982-08-03 | Browning Engineering Corporation | Ignition method and system for internal burner type ultra-high velocity flame jet apparatus |
US4521183A (en) * | 1981-11-12 | 1985-06-04 | Matsushita Electric Industrial Co., Ltd. | Cooking appliance |
US4525175A (en) * | 1983-05-31 | 1985-06-25 | Texaco Inc. | High turn down burner for partial oxidation of slurries of solid fuel |
US4475885A (en) * | 1983-07-28 | 1984-10-09 | Bloom Engineering Company, Inc. | Adjustable flame burner |
Cited By (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5427524A (en) * | 1993-06-07 | 1995-06-27 | Gas Research Institute | Natural gas fired rich burn combustor |
US5477685A (en) * | 1993-11-12 | 1995-12-26 | The Regents Of The University Of California | Lean burn injector for gas turbine combustor |
US6267799B1 (en) | 1995-04-07 | 2001-07-31 | Technological Resources Pty. Ltd. | Method of producing metals and metal alloys |
US5927960A (en) | 1995-09-21 | 1999-07-27 | The Boc Group Plc | Burner |
US6270553B1 (en) | 1996-12-18 | 2001-08-07 | Technological Resources Pty. Ltd. | Direct reduction of metal oxide agglomerates |
US6328783B1 (en) | 1996-12-18 | 2001-12-11 | Technological Resources Pty Ltd | Producing iron from solid iron carbide |
US5823762A (en) * | 1997-03-18 | 1998-10-20 | Praxair Technology, Inc. | Coherent gas jet |
US5904475A (en) * | 1997-05-08 | 1999-05-18 | Praxair Technology, Inc. | Dual oxidant combustion system |
US6143054A (en) | 1997-09-26 | 2000-11-07 | Technological Resources Pty Ltd. | Process of producing molten metals |
US6176894B1 (en) | 1998-06-17 | 2001-01-23 | Praxair Technology, Inc. | Supersonic coherent gas jet for providing gas into a liquid |
US6383445B1 (en) | 1998-06-17 | 2002-05-07 | Praxair Technology, Inc. | Supersonic coherent gas jet for providing gas into a liquid |
US6322745B1 (en) | 1998-07-01 | 2001-11-27 | Technological Resources Pty. Ltd. | Direct smelting vessel and direct smelting process |
US6402808B1 (en) | 1998-07-24 | 2002-06-11 | Technological Resources Pty. Ltd. | Direct smelting process |
US6475264B1 (en) | 1998-07-24 | 2002-11-05 | Technological Resources Pty Ltd | Direct smelting process |
US6289034B1 (en) | 1998-08-28 | 2001-09-11 | Technologies Resources Pty. Ltd. | Process and an apparatus for producing metals and metal alloys |
US6478848B1 (en) | 1998-09-04 | 2002-11-12 | Technological Resources Pty Ltd | Direct smelting process |
US6440195B1 (en) | 1998-10-14 | 2002-08-27 | Technological Resources Pty. Ltd. | Process and an apparatus for producing metals and metal alloys |
US6423115B1 (en) | 1999-01-08 | 2002-07-23 | Technological Resources Pty Ltd | Direct smelting process |
US20020127504A1 (en) * | 1999-04-19 | 2002-09-12 | Neville Thomas B. | Premix burner with firing rate control |
US6585929B1 (en) | 1999-06-08 | 2003-07-01 | Technological Resources Pty Ltd | Direct smelting vessel |
US6517605B1 (en) | 1999-07-09 | 2003-02-11 | Technological Resources Pty. Ltd. | Start-up procedure for direct smelting process |
US6379422B1 (en) | 1999-08-05 | 2002-04-30 | Technological Resources Pty. Ltd. | Direct smelting process |
US6423114B1 (en) | 1999-08-10 | 2002-07-23 | Technological Resources Pty. Ltd. | Pressure control |
US6428603B1 (en) | 1999-09-27 | 2002-08-06 | Technological Resources Pty., Ltd. | Direct smelting process |
US6387153B1 (en) | 1999-10-15 | 2002-05-14 | Technological Resources Pty Ltd | Stable idle procedure |
US6379424B1 (en) | 1999-10-26 | 2002-04-30 | Technological Resources Pty. Ltd. | Direct smelting apparatus and process |
US6602321B2 (en) | 2000-09-26 | 2003-08-05 | Technological Resources Pty. Ltd. | Direct smelting process |
FR2823290A1 (en) | 2001-04-06 | 2002-10-11 | Air Liquide | COMBUSTION PROCESS INCLUDING SEPARATE INJECTIONS OF FUEL AND OXIDIZING AND BURNER ASSEMBLY FOR IMPLEMENTATION OF THIS PROCESS |
US20060127831A1 (en) * | 2004-12-13 | 2006-06-15 | Kagi Thomas Sr | Waste oil multi-fuel fired burner |
US20070267786A1 (en) * | 2006-05-17 | 2007-11-22 | Higgins Christopher K | Methods of implementing a water-cooling system into a burner panel and related apparatuses |
US20070267787A1 (en) * | 2006-05-17 | 2007-11-22 | Higgins Christopher K | Methods of implementing a water-cooling system into a burner panel and related apparatuses |
US7824604B2 (en) | 2006-05-17 | 2010-11-02 | Air Liquide Advanced Technologies U.S. Llc | Methods of implementing a water-cooling system into a burner panel and related apparatuses |
US7951325B2 (en) | 2006-05-17 | 2011-05-31 | Air Liquide Advanced Technologies U.S. Llc | Methods of implementing a water-cooling system into a burner panel and related apparatuses |
US9498787B2 (en) | 2007-11-09 | 2016-11-22 | Tyco Fire & Security Gmbh | Fire protection apparatus, systems and methods for addressing a fire with a mist |
US20100301129A1 (en) * | 2007-11-09 | 2010-12-02 | Marcus Brian Mayhall Fenton | Decontamination |
US9050481B2 (en) * | 2007-11-09 | 2015-06-09 | Tyco Fire & Security Gmbh | Decontamination |
US8520714B2 (en) * | 2008-03-28 | 2013-08-27 | Air Liquide Advanced Technologies U.S. Llc | Burner/injector panel apparatus |
US20090245319A1 (en) * | 2008-03-28 | 2009-10-01 | Air Liquide Advanced Technologies Us Llc | Burner/Injector Panel Apparatus |
US20090311642A1 (en) * | 2008-06-13 | 2009-12-17 | Air Products And Chemicals, Inc. | Oxygen Control System For Oxygen Enhanced Combustion |
US8578892B2 (en) * | 2008-06-13 | 2013-11-12 | Air Products And Chemicals, Inc. | Oxygen control system for oxygen enhanced combustion of solid fuels |
US8478446B2 (en) | 2008-06-13 | 2013-07-02 | Air Products And Chemicals, Inc. | Oxygen control system for oxygen enhanced combustion |
US20090308331A1 (en) * | 2008-06-13 | 2009-12-17 | Air Products And Chemicals, Inc. | Oxygen control system for oxygen enhanced combustion of solid fuels |
US8827176B2 (en) * | 2012-07-05 | 2014-09-09 | James A. Browning | HVOF torch with fuel surrounding oxidizer |
Also Published As
Publication number | Publication date |
---|---|
JPS62500010A (en) | 1987-01-08 |
US4622007A (en) | 1986-11-11 |
ZA856242B (en) | 1986-03-26 |
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