EP2561295A1 - Four à flamme et procédé de régulation de la combustion dans un four à flamme - Google Patents
Four à flamme et procédé de régulation de la combustion dans un four à flammeInfo
- Publication number
- EP2561295A1 EP2561295A1 EP11719312A EP11719312A EP2561295A1 EP 2561295 A1 EP2561295 A1 EP 2561295A1 EP 11719312 A EP11719312 A EP 11719312A EP 11719312 A EP11719312 A EP 11719312A EP 2561295 A1 EP2561295 A1 EP 2561295A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- combustion chamber
- flame
- detected
- main oxidant
- flame intensity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
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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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4673—Measuring and sampling devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/08—Arrangements of devices for treating smoke or fumes of heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N3/00—Regulating air supply or draught
- F23N3/002—Regulating air supply or draught using electronic means
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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
- F23N5/082—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements using electronic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/20—Arrangements for treatment or cleaning of waste gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangement of monitoring devices; Arrangement of safety devices
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C2100/00—Exhaust gas
- C21C2100/02—Treatment of the exhaust gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0034—Regulation through control of a heating quantity such as fuel, oxidant or intensity of current
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0034—Regulation through control of a heating quantity such as fuel, oxidant or intensity of current
- F27D2019/004—Fuel quantity
- F27D2019/0043—Amount of air or O2 to the burner
Definitions
- the present invention relates to the regulation of combustion in flame furnaces.
- Flame kilns are commonly used in industry for thermal energy generation and for high temperature processing of materials.
- flame oven refers to an oven, such as a melting furnace or incinerator, wherein at least a portion of the thermal energy is produced in the furnace combustion chamber by combustion of a fuel with an oxidant present in the oxidant.
- flame oven also covers furnaces in which at least a portion of the thermal energy is produced by a combustion without a visible flame, often called “flameless combustion” (in English: “flameless combustion”).
- the fumes generated by the combustion are removed from the combustion chamber of the flame furnace at a temperature above 600 ° C by an exhaust duct.
- a maximum of thermal energy is generated by combustion when it is stoichiometric, that is to say when the oxidant is injected into the combustion zone in an amount corresponding to the amount of oxidant necessary for the total combustion of the fuel present in the combustion zone.
- the carbon present in the fuel is entirely oxidized to CO 2
- the hydrogen generally present in the fuel is entirely oxidized to H 2 O, etc.
- it is found that a slight excess of oxidant is necessary to arrive at a total combustion of the fuel.
- Optimized operation of a flame furnace is generally possible in flame furnaces in which fuel and oxidant inputs and compositions thereof are fully controlled.
- JP-A-1314809 and JP-A-2001004116 it is known to equip an incinerator with a camera directed towards the interior of the combustion chamber and to regulate the afterburner inside the combustion chamber. above the main combustion according to the image obtained from the combustion inside the chamber.
- WO-A-03/056044 discloses an aluminum smelting process in which solid aluminum is introduced into an oven, the aluminum is melted to form an aluminum bath, the variations in concentration of carbon monoxide (CO) and the temperature in the flue gases leaving the furnace, the formation of aluminum oxides on the surface of the aluminum bath is deduced and the melting process is regulated according to the formation of aluminum oxides.
- CO carbon monoxide
- WO-A-2004/083469 discloses an aluminum melting process in which the fuel / oxidant ratio injected by a burner into the flame furnace is regulated as a function of the temperature of the flue gases in the flue gas discharge duct. an air inlet called "dilution air”.
- the dilution air flow rate can vary according to different parameters (size of the openings, speed of the extraction of fumes, state of the flue gas ducts, flow of the other flue gases collected by the same extractor) .
- This variable flow can have an influence on the temperature of the fumes in the exhaust duct and thus have an impact on the setting of the oven.
- Daily (day and night) and seasonal (summer and winter) variations in the dilution air temperature, which is usually ambient air, can also affect the flue gas temperature in the flue .
- the present invention aims to provide a control of the combustion in a flame oven that does not have the disadvantages of known methods described above.
- the present invention thus relates to a method of operating an improved flame oven.
- an oxidant called “main oxidant”
- main oxidant is injected at a regulated flow rate into a combustion chamber of the flame oven.
- Combustible material is burned in the combustion chamber with the main oxidant thus injected, producing thermal energy and fumes having a temperature above 600 ° C. in the combustion chamber.
- the fumes thus produced are evacuated from the combustion chamber by an exhaust duct.
- This exhaust duct is provided with an inlet of an oxidant called “dilution oxidizer”, typically, but not necessarily, ambient air, downstream of the combustion chamber, so that the oxidant dilution comes into contact with fumes at 600 ° C or more.
- the fumes still contain oxidizable materials, that is to say when the combustion of combustible material in the combustion chamber is not complete, a flame is obtained at the inlet of the dilution oxidation agent. inside the exhaust duct. Indeed, the contact between the dilution oxidant and the oxidizable materials in the fumes at high temperature generate a self-combustion of said oxidizable materials, such as CO and / or H 2 present in the fumes evacuated.
- the intensity of the flame is detected inside the evacuation pipe, and therefore downstream of the combustion chamber, and the main oxidant injection flow rate is regulated in the combustion chamber. depending on the flame intensity detected.
- the combustible material may in particular be introduced into the combustion chamber in a controlled manner, for example by injecting a fuel jet into the combustion chamber by means of a lance or a burner.
- the combustible material may be present in the charge and thus be introduced into the combustion chamber with the charge.
- the combustible material may also be introduced into the combustion chamber by a combination of controlled introduction and introduction with the charge into the combustion chamber.
- the main oxidant injection flow rate injected into the combustion chamber is reduced when the flame intensity thus detected is lower than a predetermined lower limit and the main oxidant flow rate injected into the combustion chamber is increased when the flame intensity thus detected is greater than a predetermined upper limit.
- oxidizable materials such as CO
- the presence of oxidizable materials, such as CO, in the fumes is thus detected by the intensity of their combustion with the dilution oxidant using a flame detector which returns a signal indicative of the intensity of the the combustion / flame inside the exhaust duct: (a) a strong intensity is indicative of a significant presence of oxidizable materials in the exhaust fumes, and (b) a low intensity is a sign of a low presence of oxidizable materials in the evacuated fumes.
- the invention thus makes it possible to determine the level of the presence of oxidizable materials in the fumes and to apply in real time a correction to the control of the combustion in the combustion zone.
- the predetermined lower and upper limits are set depending on the nature of the combustion process in the combustion chamber, as discussed above.
- the predetermined lower limit is very low, but greater than zero. In this way, it is ensured that the main oxidant injection rate is neither excessive nor too low for the combustion process in the combustion chamber.
- the invention makes it possible in particular to compensate for imperfect knowledge of the fuel content of the furnace charge (a typical case for recycling furnaces), the quality of the combustible material and / or its release into the combustion chamber by real-time adaptation of the control of the main oxidant flow and, as explained below, possibly also the fuel flow injected into the combustion chamber.
- Another advantage of the invention is that it can be achieved with an inexpensive and simple flame intensity detector implementation.
- the content of oxidizable materials in the evacuated fumes may vary frequently, but often of short duration.
- the flame intensity inside the exhaust duct is detected for predetermined periods ⁇ and At2.
- the main oxidant injection rate in the combustion chamber is reduced when the detected flame intensity has remained below the lower limit for the predetermined time ⁇ .
- the main oxidant injection rate in the combustion chamber is increased when the detected flame intensity has remained above the upper limit for the predetermined time ⁇ 2.
- Another possibility is (a) to reduce the main oxidant injection rate in the combustion chamber when the average value of the flame intensity detected during the predetermined time ⁇ is lower than the lower limit, and (b) to increase the main oxidant injection rate in the combustion chamber when the average value of the flame intensity detected during the predetermined duration ⁇ 2 is greater than the upper limit.
- the predetermined durations ⁇ and ⁇ 2 are typically identical.
- the main oxidant and the combustible material are injected into the combustion chamber at controlled flow rates, the combustible material is burned with the main oxidant in the combustion chamber, producing thermal energy. and fumes at a temperature above 600 ° C in the combustion chamber, and exhaust fumes thus produced from the combustion chamber through a discharge conduit.
- the exhaust fumes may contain residual oxidizable materials.
- the exhaust duct is provided with a diluent oxidizer inlet downstream of the combustion chamber.
- the residual oxidizable materials of the flue gases are burned with the dilution oxidant to obtain a flame inside the exhaust duct at the dilution oxidizer inlet.
- the flame intensity is detected inside the evacuation pipe and the main oxidant injection rate in the combustion zone is regulated as a function of the flame intensity detected.
- the ratio between the main oxidant injection flow rate and the injection rate of combustible material in the combustion chamber is reduced when the flame intensity detected inside the exhaust duct is less than at a predetermined lower limit and the ratio of the main oxidant injection rate to the fuel injection rate in the combustion chamber is increased when the intensity of the detected flame is greater than a predetermined upper limit.
- the ratio of the main oxidant injection rate to the fuel injection rate in the combustion chamber can be modified by changing the main oxidant injection rate with respect to the material injection flow rate. predetermined fuel, or by changing (a) the main oxidant injection rate and (b) the fuel injection rate. It should be noted, however, that the injection rate of combustible material into the combustion chamber is often regulated according to the need for thermal energy in the combustion chamber.
- the combustion chamber is equipped with at least one lance for injecting a regulated flow rate of main oxidant.
- the combustion chamber may also be equipped with at least one burner for the injection of a regulated flow rate of main oxidant and a regulated flow rate of combustible material.
- the combustion chamber may also comprise at least one such lance and at least one such burner.
- the process may be a batch process, a semi-batch process or a continuous feed process.
- the combustion chamber may be the combustion chamber of an arc furnace, a rotary kiln, a fixed melting furnace, a heating furnace, a boiler, an afterburner chamber. gaseous effluents, etc.
- the process may be a melting or vitrification process, and in particular a secondary melting process for recovered metals, a method for burning solid, liquid or gaseous waste, a method for post-combustion of gaseous effluents, a method of reheating, such as reheating of metallurgical products, etc.
- the dilution oxidant inlet is typically an ambient air inlet in the exhaust duct (in English: "air gap"), but may also be an oxidant injector, such as an air injector enriched with oxygen or oxygen.
- the flame detector is advantageously an optical detector and in particular an optical detector chosen from ultraviolet detectors, infrared detectors and visible radiation detectors.
- the detector is preferably an infrared detector or an ultraviolet detector.
- main combustion which takes place inside the combustion chamber
- the flame is detected inside the exhaust duct preferably in a place protected from combustion main.
- the exhaust duct may be provided with a bend.
- the flame detection is then preferably carried out downstream of this bend.
- the dilution oxidant inlet is advantageously immediately upstream, in or downstream of the elbow, so as to that the flame generated by the combustion of the oxidizable materials in the fumes with the diluting oxidant develops at least mainly downstream of the elbow.
- the present invention also relates to a flame oven adapted for carrying out the method described above.
- the invention more particularly relates to a flame oven comprising a combustion chamber, means for the injection of main oxidant at a controlled flow rate into this combustion chamber and a conduit for the evacuation of fumes from said chamber of combustion. combustion.
- the exhaust duct has a diluent oxidizer inlet downstream of the combustion chamber.
- the flame oven of the invention also includes a detector for detecting a flame intensity within the exhaust conduit at the dilution oxygen inlet. The detector is positioned and oriented to prevent the main combustion from distorting the detected flame intensity.
- the exhaust duct may in particular comprise a bend as mentioned above.
- the flame detector is preferably positioned downstream of this bend.
- the dilution oxidant inlet is positioned immediately upstream, in or downstream of the elbow of the exhaust duct.
- the oven advantageously comprises a control unit connected to the detector and the means for the main oxidant injection.
- This control unit is programmed:
- main oxidant injection means to increase the main oxidant injection rate in the combustion chamber by the main oxidant injection means when the detected flame intensity is greater than a predetermined upper limit.
- the control unit can more particularly be programmed:
- the furnace according to the invention may also comprise means for injecting combustible material at a controlled rate into the combustion chamber.
- the flame furnace preferably comprises a control unit linked (a) to the detector, (b) the means for injecting the main oxidant into the combustion chamber, and (c) the means for the injection of combustible material into the combustion chamber.
- This control unit is programmed (i) to compare the flame intensity detected by the detector within the exhaust duct with a predetermined lower limit and a predetermined upper limit, (ii) to reduce the ratio of the flow rate.
- control unit is more particularly programmed:
- control unit will advantageously vary the main oxidant injection rate as a function of the injection rate of the combustible material.
- control unit may, for example, in the case of a flame intensity lower than the predetermined lower limit, reduce the ratio between the main oxidant injection flow rate and the injection rate of the combustible material by increasing the injection rate of combustible material at an unchanged main oxidant injection rate.
- the main oxidant injection means of the furnace may include one or more lances for the main oxidant injection into the combustion chamber.
- the furnace fuel injection means may comprise one or more lances for the injection of combustible material into the combustion chamber.
- the oven may also include one or more burners for injecting combustible materials and main oxidant into the combustion chamber.
- a burner is therefore on the one hand, part of the means for the injection of the main oxidant and on the other hand, the means for injecting combustible material from the furnace.
- the oven according to the invention may be an oven for a batch process, for a semi-batch process or for a continuous process.
- the oven may especially be an arc furnace, a rotary kiln, a fixed melting furnace, a reheating furnace, such as a reheating furnace for metallurgical products, a boiler, a post-combustion chamber for gaseous effluents, etc.
- the furnace may be a melting or vitrification furnace, and in particular a secondary melting furnace for recovered metals, an incinerator for solid, liquid or gaseous waste, etc.
- the dilution oxidant inlet is typically an ambient air inlet in the exhaust duct (in English: "air gap"), but may also be an oxidant injector, such as an air injector enriched with oxygen or an oxygen injector.
- the flame detector is preferably an optical detector and in particular an optical detector selected from ultraviolet detectors, infrared detectors and visible radiation detectors.
- the combustible material injected into the combustion chamber may be a gaseous, liquid or solid fuel (for example: natural gas, liquid fuel, propane, bio-fuel, pulverized coal) or a combination of several fuels.
- This combustible material may be injected in addition to combustible material introduced into the combustion chamber with the charge, which may be mixed with the charge before its introduction into the combustion chamber and / or may be an intrinsic part of the charge.
- the main oxidant may be air, oxygen-enriched air, pure oxygen (having by definition an oxygen content of 88% to 100% vol) or a mixture of oxygen with recycled fumes . In the latter cases (air enriched with oxygen and in particular pure oxygen or oxygen mixture with recycled fumes), one benefits from a volume of fumes and a reduced fuel consumption.
- Second fusion refers to the melting of recycled or primary metallurgical materials (for example: cast iron from a blast furnace).
- the metals considered are for example: cast iron, lead, aluminum, copper, or any other metal that can be melted in a flame oven.
- the metal charge can also be loaded into the oven in mixture with combustible materials composed of a high proportion of carbon (plastic, coke, ). These combustible materials may be present in the metallic filler (for example in the case of aluminum recycling) and / or intentionally added to the filler for the purpose of the melting process (for example in the case of the deoxidation reaction for recycling of lead).
- combustible materials composed of a high proportion of carbon (plastic, coke, ).
- These combustible materials may be present in the metallic filler (for example in the case of aluminum recycling) and / or intentionally added to the filler for the purpose of the melting process (for example in the case of the deoxidation reaction for recycling of lead).
- the oven is more particularly a rotary kiln for the secondary melting of lead with a combustion chamber 2 with a capacity of 15t.
- the oven is equipped with a natural gas / oxygen burner 24 which generates the flame 11 in the combustion chamber 2.
- the burner power 24 and the oxygen / natural gas ratio are controlled by the automatic control of the furnace (control device 20). connected to the oxygen flow regulator 15 and the natural gas flow controller 17) as a function of the progress of the heating cycle, as described below.
- the load 30 consists of lead waste from automobile battery crushing. A large part of this lead is in the form of a "paste" of oxide (PbO, Pb0 2 ”). and lead sulphate (PbS0 4 ). To this metallic charge are added materials necessary for the reduction of oxides partly made of coke (having a high carbon content), also called “reagents”.
- the lead recycling process consists in heating the charge 30, and then keeping the hot charge in contact with the reagents to obtain liquid lead 4 and a slag which fixes the impurities and the sulfur present in the lead sulfate.
- the oven is discontinuous.
- the combustion chamber 2 is charged at the beginning of each cycle.
- the burner 24 is then ignited and its power modulated by the control device 20 so that the temperature of the load follows a heating cycle which has been determined empirically.
- This reaction produces CO and PH 2 by the following reaction between part of the smoke and part of the carbon of the feed, the mechanisms of which can be schematically presented as follows:
- the power of the burner 24 will for example be set between 1 and 1.5 MW depending on the progress of the heating cycle. In the middle of the cycle, the burner is for example tuned for a power of 1.3 MW with the following flow rates:
- the CO and the H 2 of the fumes burn with dilution air in the flame 12 inside the chimney 13 which has a bend downstream and close to the chamber 2.
- the dilution air is ambient air entering the chimney 13 through the opening 14 provided for this purpose downstream of the elbow. This dilution air allows the combustion of CO 2 in C0 2 and the cooling of the fumes before filtration (not shown) which precedes the evacuation of fumes.
- a level of CO too important in the fumes 6 has several disadvantages:
- the detection according to the invention by means of the UV detector 10 of the D-LX100 range marketed by the Durag company of the intensity of the combustion flame 12 of the CO + H 2 mixture with the dilution air just after the exit 5 of the oven makes it possible to correct the setting of the burner 24 by acting on the "Oxygen / Natural Gas" ratio.
- the detector 10 transmits to the control device 20 a signal corresponding to the detected flame intensity.
- the elbow of the chimney 13 and the positioning of the detector UV10 with respect to said elbow ensures that the detector UV10 detects only the intensity of the flame 12 inside the chimney 13 without interfering with the UV radiation of the combustion inside. of the combustion chamber 2.
- the invention allows, for example, the control device 20, especially when the intensity of this combustion in the chimney 13 exceeds an experimentally predetermined upper limit:
- the burner 24 injects an excess of 70 Nm 3 / h of oxygen, relative to the initial setting. This excess of oxygen is then available for the combustion inside the furnace 2 of the combustible materials released by the charge.
- This adjustment of the oxygen / natural gas ratio is dynamic according to the intensity of the post combustion of the smoke in the chimney 13 (intensity of the flame 12 detected).
- the energy efficiency of the furnace 2 is significantly improved and effective treatment of fumes, including their filtering, is ensured.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Incineration Of Waste (AREA)
- Control Of Combustion (AREA)
- Regulation And Control Of Combustion (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL11719312T PL2561295T3 (pl) | 2010-04-23 | 2011-03-30 | Piec płomieniowy i sposób regulowania spalania w piecu płomieniowym |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1053147A FR2959298B1 (fr) | 2010-04-23 | 2010-04-23 | Four a flamme et procede de regulation de la combustion dans un four a flamme |
| PCT/FR2011/050703 WO2011131880A1 (fr) | 2010-04-23 | 2011-03-30 | Four à flamme et procédé de régulation de la combustion dans un four à flamme |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP2561295A1 true EP2561295A1 (fr) | 2013-02-27 |
| EP2561295B1 EP2561295B1 (fr) | 2018-05-16 |
| EP2561295B2 EP2561295B2 (fr) | 2025-04-02 |
Family
ID=43242840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11719312.8A Active EP2561295B2 (fr) | 2010-04-23 | 2011-03-30 | Four à flamme et procédé de régulation de la combustion dans un four à flamme |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US20130115560A1 (fr) |
| EP (1) | EP2561295B2 (fr) |
| JP (1) | JP2013530366A (fr) |
| CN (1) | CN102859307B (fr) |
| BR (1) | BR112012027190B1 (fr) |
| CA (1) | CA2797168C (fr) |
| ES (1) | ES2675910T5 (fr) |
| FR (1) | FR2959298B1 (fr) |
| PL (1) | PL2561295T3 (fr) |
| RU (1) | RU2012149939A (fr) |
| TR (1) | TR201809425T4 (fr) |
| WO (1) | WO2011131880A1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019034283A1 (fr) * | 2017-08-17 | 2019-02-21 | Linde Aktiengesellschaft | Installation de four et procédé pour le fonctionnement d'un four |
| CN112066407A (zh) * | 2020-09-11 | 2020-12-11 | 富士特锅炉(天津)有限公司 | 一种切向扩散耦合烟气外循环多元可调低氮燃烧设备 |
| EP4202297A1 (fr) | 2021-12-21 | 2023-06-28 | L'Air Liquide, société anonyme pour l'Étude et l'Exploitation des procédés Georges Claude | Procédé de combustion |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL2664884T3 (pl) | 2012-05-18 | 2020-02-28 | Air Products And Chemicals, Inc. | Sposób i urządzenie do podgrzewania metali |
| CN103363540B (zh) * | 2013-06-21 | 2016-04-27 | 广东电网公司电力科学研究院 | 一种电站锅炉低负荷运行下的升温补燃系统 |
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2010
- 2010-04-23 FR FR1053147A patent/FR2959298B1/fr active Active
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2011
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- 2011-03-30 WO PCT/FR2011/050703 patent/WO2011131880A1/fr not_active Ceased
- 2011-03-30 TR TR2018/09425T patent/TR201809425T4/tr unknown
- 2011-03-30 CN CN201180020107.7A patent/CN102859307B/zh active Active
- 2011-03-30 BR BR112012027190-3A patent/BR112012027190B1/pt active IP Right Grant
- 2011-03-30 EP EP11719312.8A patent/EP2561295B2/fr active Active
- 2011-03-30 ES ES11719312T patent/ES2675910T5/es active Active
- 2011-03-30 CA CA2797168A patent/CA2797168C/fr active Active
- 2011-03-30 RU RU2012149939/02A patent/RU2012149939A/ru not_active Application Discontinuation
- 2011-03-30 US US13/642,683 patent/US20130115560A1/en not_active Abandoned
- 2011-03-30 PL PL11719312T patent/PL2561295T3/pl unknown
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019034283A1 (fr) * | 2017-08-17 | 2019-02-21 | Linde Aktiengesellschaft | Installation de four et procédé pour le fonctionnement d'un four |
| CN112066407A (zh) * | 2020-09-11 | 2020-12-11 | 富士特锅炉(天津)有限公司 | 一种切向扩散耦合烟气外循环多元可调低氮燃烧设备 |
| EP4202297A1 (fr) | 2021-12-21 | 2023-06-28 | L'Air Liquide, société anonyme pour l'Étude et l'Exploitation des procédés Georges Claude | Procédé de combustion |
Also Published As
| Publication number | Publication date |
|---|---|
| BR112012027190B1 (pt) | 2020-11-03 |
| CN102859307B (zh) | 2015-08-19 |
| TR201809425T4 (tr) | 2018-07-23 |
| CA2797168C (fr) | 2018-07-03 |
| EP2561295B1 (fr) | 2018-05-16 |
| FR2959298A1 (fr) | 2011-10-28 |
| US20130115560A1 (en) | 2013-05-09 |
| ES2675910T5 (en) | 2025-05-30 |
| EP2561295B2 (fr) | 2025-04-02 |
| CA2797168A1 (fr) | 2011-10-27 |
| CN102859307A (zh) | 2013-01-02 |
| WO2011131880A1 (fr) | 2011-10-27 |
| BR112012027190A2 (pt) | 2016-07-19 |
| RU2012149939A (ru) | 2014-05-27 |
| JP2013530366A (ja) | 2013-07-25 |
| ES2675910T3 (es) | 2018-07-13 |
| PL2561295T3 (pl) | 2018-11-30 |
| FR2959298B1 (fr) | 2012-09-21 |
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