CN102859307A - Fuel-fired furnace and method for controlling combustion in a fuel-fired furnace - Google Patents

Fuel-fired furnace and method for controlling combustion in a fuel-fired furnace Download PDF

Info

Publication number
CN102859307A
CN102859307A CN2011800201077A CN201180020107A CN102859307A CN 102859307 A CN102859307 A CN 102859307A CN 2011800201077 A CN2011800201077 A CN 2011800201077A CN 201180020107 A CN201180020107 A CN 201180020107A CN 102859307 A CN102859307 A CN 102859307A
Authority
CN
China
Prior art keywords
combustion chamber
flow rate
injected
injection flow
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
Application number
CN2011800201077A
Other languages
Chinese (zh)
Other versions
CN102859307B (en
Inventor
P·博杜安
B·卢瓦瑟莱
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=43242840&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CN102859307(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Publication of CN102859307A publication Critical patent/CN102859307A/en
Application granted granted Critical
Publication of CN102859307B publication Critical patent/CN102859307B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • 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
    • 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
    • F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning 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—Arrangements of monitoring devices; Arrangements 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

Abstract

Fuel-fired furnace and a method for operating it, in which method: a main oxidizing agent is injected at a controlled flow rate into the combustion chamber (2) of the furnace; the combustible material is burnt in the combustion chamber (2) with the main oxidizing agent, producing thermal energy and flue gases (6) at a temperature higher than 600oC; the flue gases (6) are removed via an exhaust duct (13), said removed flue gases (6) possibly containing residual materials that could be oxidized, the exhaust duct (13) being equipped with an inlet (14) for a diluting oxidizing agent downstream of the combustion chamber (2); the residual materials that could be oxidized are burnt with the diluting oxidizing agent by means of a flame (12) at the inlet (14) for the diluting oxidizing agent; the flame intensity inside the exhaust duct (12) is detected; and the flow rate at which the main oxidizing agent is injected into the combustion chamber (2) is controlled according to the detected flame intensity.

Description

Fuel Furnace and be used for the method for the burning of control Fuel Furnace
Technical field
The present invention relates to the adjusting to the burning in the Fuel Furnace.
Background technology
Fuel Furnace is used in usually for generation of heat energy with for the industry with the high-temperature process material.
Term " Fuel Furnace " represents a kind of stove, such as smelting furnace or incinerator, wherein produces at least part of heat energy by fuel and the burning that is present in the oxidant in the oxidant material in the combustion chamber of described stove.Therefore, also to contain at least part of heat energy wherein be the stove that is produced by the burning that does not have naked light (so-called " flameless combustion ") to term " Fuel Furnace ".
Generally comprise CO by what burning produced 2, CO and H 2The flue gas of O is discharged by discharge line from the combustion chamber of Fuel Furnace with the temperature that is higher than 600 ℃.
In theory, when burning is carried out according to stoicheiometry, that is, when being injected in combustion zone with the amount corresponding with the amount that is used for making the needed oxidant of complete combustion of fuel that is present in the combustion zone oxidant, produce the heat energy of maximum.In this case, the carbon that is present in the fuel is oxidized to CO fully 2, the hydrogen that usually is present in the fuel is oxidized to H fully 2O, etc.But, find that in industrial practice in order to obtain the completing combustion of fuel, oxidant a little surplus is necessary.
Not enough oxidant injection meeting owing to fuel do not burn or partial combustion causes the decline of stove performance.Oxidant is superfluous also cause too much the stove performance decline (for example, by the more heat energy of discharging flue gas loss, and in the situation of oxygen burning, discharge together in company with flue gas participate in the partial oxidation of burning and this oxygen has the cost of can not ignore).
In other excessive shortcoming of oxidizer-flow rate, can mention especially the oxidation to the more large level of tote---tote can be oxidized situation under, as being used under the stove and the situation at some reheater of metal such as aluminium that melting can be oxidized.Be well known that especially with greater than stoicheiometry or less than the configuration operation Fuel Furnace of stoicheiometry, so that prevent or limit reduction or the oxidation harmful to tote that is caused by the atmosphere in the combustion zone.Therefore, use for some, best combustion is different from the burning of carrying out according to stoicheiometry.
In the Fuel Furnace that the composition of fuel and the oxidant that adds and these materials is well controlled, usually can realize the optimum operation to Fuel Furnace.
But in a large amount of commercial Application of Fuel Furnace, the amount of the combustible material that can obtain in the combustion zone and/or composition control get bad or only are controlled slightly.
For example be like this in following situation:
-tote comprises in the Fuel Furnace of incendiary material of variable and/or quality therein, waste incinerator and be used for the secondary smelting stove of metal recovery for example;
-therein tote comprise the intrinsic and/or incendiary material that adds and wherein tote in uncontrolled mode these incendiary materials are discharged into the fuel smelting furnace of the combustion zone that substantially is arranged in the tote top, such as the secondary smelting stove that is used for metal recovery;
-in the Fuel Furnace that is used for the flue gas that for example obtains from above-described stove is carried out second-time burning, for example at the secondary combustion chamber of the electric arc furnaces of the secondary smelting that is used for steel.
Know to the incinerator fitting surface to the camera of inside, combustion chamber and be adjusted in the second-time burning of the inside, combustion chamber of main burning top according to the image of the burning of the inside, combustion chamber that obtains from JP-A-1314809 and JP-A-2001004116.
Know from WO-A-2005/024398 and to measure being included in the amount of processing the chemical substance/element the gas that stove (such as electric arc furnaces or converter) obtains from metal---by collecting part gas to be analyzed, it being cooled to be lower than CO and/or the CO that exists in 300 ℃ and the coherent light signal measurement gas by the laser diode emission 2Amount---described process allows to be less than 10 seconds response time and described amount is measured in the real-time control of stove.
WO-A-03/056044 has described a kind of method of smelting aluminum, wherein solid aluminium is incorporated in the stove, smelting aluminum is bathed in order to form aluminium, the variation of the temperature of the flue gas that detects the concentration of carbon monoxide (CO) and discharge from stove, therefrom infer aluminium bathe lip-deep aluminium oxide formation and regulate fusion process according to the formation of the oxide of aluminium.
But, because character and the quantity of pollutant (such as flue dust) in the described flue gas, so that be difficult to measure the concentration of the chemical substance of some kind in the flue gas of Fuel Furnace.
WO-A-2004/083469 has described a kind of method of smelting aluminum, wherein regulate by burner according to the temperature of the flue gas in the smoke discharge tube road and be injected into fuel in the Fuel Furnace and the ratio of oxidant, described smoke discharge tube road is provided with the entrance be used to the air that is known as " diluent air ".
In this kind method, can change according to different parameters (flow rate of the state of the size of opening, the draw speed of combustion gas, flue, other smoke gas flow of collecting by identical shedder) flow rate of diluent air.This variable flow rate can exert an influence to the temperature of the flue gas in the discharge line, thereby and the adjusting of stove is had impact.The normally diurnal variation of the temperature of the diluent air of surrounding air (daytime and night) and seasonal variations (summer and winter) also can be influential to the temperature of the flue gas in the discharge line.
Summary of the invention
The purpose of this invention is to provide the adjusting to the burning in the Fuel Furnace, it does not have the shortcoming of above-described known method.
Therefore the present invention relates to a kind of method of operating of improved Fuel Furnace.According to the method, the oxidant that will be called main " oxidant " is injected in the combustion chamber of Fuel Furnace with the flow rate after regulating.Incendiary material burns with the primary oxidant that injects thus in the combustion chamber, thereby produces heat energy and temperature is higher than 600 ℃ flue gas in the combustion chamber.By discharge line consequent flue gas is discharged from the combustion chamber.This discharge line is provided with the entrance be used to the oxidant that is called " dilution oxidant " (it generally is but may not is surrounding air) in the downstream of combustion chamber, so that the dilution oxidant contacts with flue gas under 600 ℃ or the higher temperature.Therefore, when flue gas still contain can be oxidized material the time, that is, when the incomplete combustion of the incendiary material in the combustion chamber, the height in discharge line inside at the entrance that is used for the dilution oxidant obtains flame.In fact, in the flue gas under dilution oxidant and the high temperature can be oxidized material between contact can cause be present in the discharge flue gas can be oxidized described material (such as CO and/or H 2) automatic combustion.According to the present invention, exist discharge line inside and therefore be positioned at the detection of the flame intensity in downstream, combustion chamber, and regulate the flow rate that is injected into the primary oxidant in the combustion chamber according to the flame intensity that detects.
Especially, can in a controlled manner incendiary material be incorporated in the combustion chamber, for example by spray gun or burner fuel jet be injected in the combustion chamber.Incendiary material can be present in the tote, and therefore can be introduced in the combustion chamber with tote.Can also incendiary material be incorporated in the combustion chamber by the controlled introducing in the combustion chamber and combination together with the introducing of tote.
Advantageously, when the flame intensity that detects thus is lower than predetermined lower bound, reduce to be injected into the injection flow rate of the primary oxidant in the combustion chamber, and the flame intensity that ought detect thus is higher than the predetermined upper flow rate that is injected into the primary oxidant in the combustion chamber that increases in limited time.
Thus by flame detector detect can be oxidized in the flue gas material (such as CO) and the intensity of the burning of dilution oxidant detect the existence of described material that can be oxidized, described flame detector returns the signal of the combustion intensity/flame intensity of expression discharge line inside: (a) high strength represents to discharge the material that obviously existence can be oxidized in the flue gas, and (b) low-intensity represents to discharge the material that existence on a small quantity can be oxidized in the flue gas.
Therefore the invention enables the level that to determine to exist in the flue gas material that can be oxidized, and apply in real time the correction to the adjusting of the burning in the combustion zone.
As described before, predetermined lower bound and the predetermined upper limit are to determine according to the character of the combustion process in the combustion chamber.When combustion process was intended to realize the completing combustion of incendiary material in the combustion chamber, predetermined lower bound was very low, but is higher than zero.The injection flow rate that can guarantee thus primary oxidant is neither excessive also not too low for the combustion process of combustion chamber.
The present invention is by adjusting in real time the adjusting of the flow rate of primary oxidant and the alternatively adjusting that also has the flow rate that is injected into the fuel in the combustion chamber as described below, so that can compensate especially content, the amount of incendiary material and/or the faulty understanding of its release in the combustion chamber to incendiary material in the stove tote (ordinary circumstance is to recovery furnace).
Another advantage of the present invention is that it can be implemented by cheap and easy-to-use flame intensity detector.
In some combustion process, the content of discharging material that can be oxidized in the flue gas may change continually, but usually has the short duration.According to an embodiment, during predetermined lasting time Δ t1 and Δ t2, detect the flame intensity of discharge line inside.When the flame intensity that detects keeps below the lower injection flow rate that reduces to be injected into the primary oxidant in the combustion chamber in limited time during predetermined lasting time Δ t1.Similarly, when being kept above, the flame intensity that detects increases the injection flow rate that is injected into the primary oxidant in the combustion chamber in limited time during predetermined lasting time Δ t2.Therefore, avoided the excessive fluctuation in the combustion process.May to be (a) be lower than the lower injection flow rate that reduces to be injected into the primary oxidant in the combustion chamber in limited time when the mean value of the flame intensity that detects to another kind during predetermined lasting time Δ t1, and (b) increase the injection flow rate that is injected into the primary oxidant in the combustion chamber in limited time when the mean value of the flame intensity that detects is higher than during predetermined lasting time Δ t2.In fact, predetermined lasting time Δ t1 generally is identical with Δ t2.
According to an embodiment, with the flow rate after regulating primary oxidant and incendiary material are injected the combustion chamber, incendiary material burns with primary oxidant in the combustion chamber, thereby generation heat energy and temperature are higher than 600 ℃ flue gas in the combustion chamber, by discharge line consequent flue gas are discharged from the combustion chamber.As described before, the flue gas of discharge can comprise can be oxidized residual materials.Discharge line is provided with the entrance for the dilution oxidant in the downstream of combustion chamber.From flue gas can be oxidized residual materials burn with the dilution oxidant, thereby obtain flame in discharge line inside at the At The Height of the entrance that is used for the dilution oxidant.According to the present invention, the flame intensity of discharge line inside is detected and regulates the injection flow rate that is injected into the primary oxidant in the combustion chamber according to detecting flame intensity.
Can also be injected into the injection flow rate of the primary oxidant in the combustion chamber and the injection flow rate of incendiary material according to detecting the flame intensity adjusting.
Preferably, when the flame intensity of the discharge line inside that detects is lower than predetermined lower bound, reduce to be injected into the ratio between the injection flow rate of the injection flow rate of the primary oxidant in the combustion chamber and incendiary material, and be higher than ratio between the predetermined upper injection flow rate that increases the injection flow rate that is injected into the primary oxidant in the combustion chamber and incendiary material in limited time when the flame intensity that detects.
Especially, can (a) be lower than ratio between the injection flow rate of the lower injection flow rate that reduces to be injected into the primary oxidant in the combustion chamber in limited time and incendiary material when the flame intensity that during predetermined lasting time Δ t1, detects, and (b) be higher than ratio between the injection flow rate that increase in limited time is injected into the injection flow rate of the primary oxidant in the combustion chamber and incendiary material when the flame intensity of the discharge line inside that during predetermined lasting time Δ t2, detects.Also can (a) be lower than ratio between the injection flow rate of the lower injection flow rate that reduces to be injected into the primary oxidant in the combustion chamber in limited time and incendiary material when the mean value of the flame intensity of the discharge line inside that during predetermined lasting time Δ t1, detects, and (b) be higher than ratio between the injection flow rate that increase in limited time is injected into the injection flow rate of the primary oxidant in the combustion chamber and incendiary material when the mean value of the flame intensity that during predetermined lasting time Δ t2, detects.
Can change by the predetermined injection flow rate with respect to incendiary material primary oxidant the injection flow rate or by the injection flow rate of change (a) primary oxidant and (b) the injection flow rate of incendiary material revise ratio between the injection flow rate of the injection flow rate of the primary oxidant that is injected into the combustion chamber and incendiary material.But should be noted that, usually regulate the injection flow rate of the incendiary material that injects the combustion chamber according to the heat energy demand in the combustion chamber.
According to an embodiment, the combustion chamber is equipped with at least one spray gun with the injection for the primary oxidant after the flow rate adjustment.The combustion chamber also can be equipped with at least one burner to be used for primary oxidant after the flow rate adjustment and the injection of the incendiary material after the flow rate adjustment.The combustion chamber also can comprise at least one this spray gun and at least one this burner.
The method can be discontinuous method, semi-batch process or continuous supply method.
Described combustion chamber can be the combustion chamber of electric arc furnaces, converter, fixed smelting furnace, reheater, boiler or the secondary combustion chamber that is used for the gaseous state effluent etc.
The method can be for melting or vitrified method, especially for the method for the secondary smelting of old metal, be used for solid, liquid or gaseous waste combustion method, be used for the secondary burning method of gaseous state effluent or be used for the method etc. of again heating (such as the again heating of metallurgic product).
The entrance that is used for the dilution oxidant generally is be used to making surrounding air enter into entrance (air gap) in the discharge line, but also can be the injector for oxidant, such as the injector that is used for being rich in the air of oxygen or is used for oxygen.
Flame detector is fluorescence detector preferably, the fluorescence detector of particularly selecting from UV-detector, infrared light detector and visible light detector.Described detector is infrared light or UV-detector preferably.
For fear of the intervention of the burning that is called main burning that occurs in inside, combustion chamber, preferably avoiding flame detection on the main position of burning in discharge line inside.
In order better the surveyed area of discharge line inside to be separated with master's (burning) chamber, discharge line can be provided with bend.Thereby preferably carry out the detection of flame in this bend downstream.The entrance that is used for the dilution oxidant preferably is located in the tight downstream of tight upstream, bend or the bend of bend, so that material that can be oxidized in the flue gas at least mainly occurs in the downstream of bend with the burn flame that produces of dilution oxidant.
When described stove and accessory has the geometry that prevents the intervention between main burning and the flame detector, if perhaps stove is included in the element that consists of shielding between main burning and the flame detector, then do not need this bend.
The invention still further relates to a kind of Fuel Furnace that is designed for implementing said method.
Therefore, the present invention relates more particularly to a kind of Fuel Furnace, and it comprises the combustion chamber, is used for primary oxidant is injected into the device of this combustion chamber and the pipeline that is used for discharging from the combustion chamber flue gas with the flow rate after regulating.This discharge line is included in the entrance that is used for the dilution oxidant in downstream, combustion chamber.Comprise also that according to Fuel Furnace of the present invention detector is to detect the flame intensity at the At The Height of the entrance that is used for the dilution oxidant in the discharge line.This detector location also is orientated to the flame intensity that prevents that main burning infringement from detecting.
Especially, discharge line can comprise foregoing bend.Referring to the method according to this invention, thereby flame detector preferably is positioned at the downstream of this bend.Preferably, the entrance that is used for the dilution oxidant is positioned at the tight downstream of the bend of the bend of tight upstream, discharge line of the bend of discharge line or discharge line.
Described stove preferably includes control module, and this control module is connected to detector and is used for injecting the device of primary oxidant.This control module is programmed to:
The flame intensity of-discharge line the inside that will detect by detector and predetermined lower bound and the predetermined upper limit compare;
-when the flame intensity that detects is lower than predetermined lower bound, reduce to be injected into by the device that is used for the injection primary oxidant injection flow rate of the primary oxidant of combustion chamber; With
-when the flame intensity that detects is higher than predetermined upper prescribing a time limit, increase by be injected into the injection flow rate of the primary oxidant of combustion chamber for the device that injects primary oxidant.
More particularly, control module can be programmed to:
-under being lower than, the flame intensity that detects for predetermined lasting time Δ t1 prescribes a time limit, and/or under the mean value of the flame intensity that detects during predetermined lasting time Δ t1 for predetermined lasting time Δ t1 is lower than, prescribe a time limit, reduce to be injected into the injection flow rate of the primary oxidant in the combustion chamber; With
-when being higher than, the flame intensity that detects for predetermined lasting time Δ t2 prescribes a time limit, and/or be higher than in limited time when the mean value of the flame intensity that during predetermined lasting time Δ t2, detects for predetermined lasting time Δ t2, increase the injection flow rate that is injected into the primary oxidant in the combustion chamber.
Stove according to the present invention can also comprise for the device that incendiary material is injected into the combustion chamber with the flow rate after regulating.
In this case, Fuel Furnace preferably includes control module, and this control module is connected to the device that (a) detector, (b) are used for that primary oxidant is injected into the device of combustion chamber and (c) are used for incendiary material is injected into the combustion chamber.This control module is programmed to the flame intensity of the discharge line inside that (i) will detect by detector and predetermined lower bound and the predetermined upper limit and compares, (ii) when being lower than predetermined lower bound, the flame intensity that detects reduces to be injected into the ratio between the injection flow rate of the injection flow rate of the primary oxidant in the combustion chamber and incendiary material, the flame intensity that (iii) ought detect is higher than the ratio between the predetermined upper injection flow rate that increases the injection flow rate that is injected into the primary oxidant in the combustion chamber and incendiary material in limited time.
According to preferred embodiment, control module more particularly is programmed to:
-under being lower than, the flame intensity of the discharge line inside that detects during predetermined lasting time Δ t1 prescribes a time limit, and/or be lower than in limited time down when the mean value of the flame intensity that during predetermined lasting time Δ t1, detect, reduce to be injected into the ratio between the injection flow rate of the injection flow rate of the primary oxidant in the combustion chamber and incendiary material;
-when being higher than, the flame intensity that detects during predetermined lasting time Δ t2 prescribes a time limit, and/or be higher than in limited time when the mean value of the flame intensity that during predetermined lasting time Δ t2, detect, increase the ratio between the injection flow rate of the injection flow rate that is injected into the primary oxidant in the combustion chamber and incendiary material.
For the ratio between the injection flow rate of the injection flow rate that changes the primary oxidant that is injected in the combustion chamber and incendiary material, control module will preferably change the injection flow rate of primary oxidant according to the injection flow rate of incendiary material.But the injection flow rate that control module also can be by regulating primary oxidant and the injection flow rate of incendiary material change the ratio between the injection flow rate of the injection flow rate of primary oxidant and incendiary material.In this case, control module can be for example be lower than in the situation of predetermined lower bound ratio between the injection flow rate of injection flow rate by with respect to the injection flow rate of the primary oxidant that remains unchanged the injection flow rate of incendiary material being increased to reduce primary oxidant and incendiary material in flame intensity.
Be used for to comprise that to the device of described stove injection primary oxidant one or more spray guns are to be used for that primary oxidant is injected into the combustion chamber.
Be used for to comprise that to the device of described stove injection incendiary material one or more spray guns are to be used for that incendiary material is injected into the combustion chamber.
Described stove can comprise that also one or more burners are to be used for that incendiary material and primary oxidant are injected into the combustion chamber.Such burner at first is configured for injecting the part of the device of primary oxidant, and next is configured for incendiary material is injected into the part of the device in the stove.
Stove according to the present invention can be for discontinuous method, be used for semi-batch process or be used for the stove of continuation method.
Especially, described stove can be electric arc furnaces, converter, fixed smelting furnace, reheater (such as the reheater that is used for metallurgic product), boiler or the secondary combustion chamber that is used for the gaseous state effluent etc.
Described stove can be for melting or vitrified stove, especially for the secondary smelting stove of old metal or be used for the incinerator etc. of solid, liquid or gaseous waste.
The entrance that is used for the dilution oxidant generally is be used to making surrounding air enter the entrance (air gap) of discharge line, still also can be the injector for oxidant, such as injector or the plurality of oxygen injectors for the air that is rich in oxygen.
Flame detector is fluorescence detector preferably, the fluorescence detector of particularly selecting from UV-detector, infrared light detector and visible light detector.
The incendiary material that is injected in the combustion chamber can be the combination of gaseous state, liquid state or solid fuel (for example natural gas, liquid fuel, propane, bio-fuel, fine coal) or pluralities of fuel.This incendiary material can be injected into outside the incendiary material that is introduced in tote in the combustion chamber and can mix with tote before tote is introduced in the combustion chamber and/or it can consist of the intrinsic part of tote.
Primary oxidant can be air, be rich in the mixture of the air of oxygen, purity oxygen (being defined as the oxygen volume content is 88%-100%) or oxygen and circulating flue gas.In the situation of back, (be rich in the mixture of the air of oxygen, particularly purity oxygen or oxygen and circulating flue gas), have the benefit that reduces flue gas volume and fuel consumption.
The present invention is useful especially for the Fuel Furnace of the secondary smelting that is used for metal.Secondary smelting represents salvage material or the material (cast iron that for example obtains from blast furnace) that obtains from primary smelting are carried out melting.
The metal of considering for example is cast iron, lead, aluminium, copper or any other metal that can melting in Fuel Furnace.
Can also with the metal tote with situation that the incendiary material that contains a high proportion of carbon (plastics, coke etc.) mixes under be loaded in the described stove.These incendiary materials may reside in the metal tote (for example in the situation that aluminium reclaims) and/or add wittingly the demand (for example being used for the plumbous deoxygenation that reclaims) that is used for satisfying fusion process in the described tote to.
Description of drawings
The present invention and advantage thereof will become clearer from the following illustrated examples with reference to Fig. 1, Fig. 1 schematically shows according to fuel smelting furnace of the present invention.
The specific embodiment
Described stove more particularly is used for the converter of plumbous secondary smelting, and it has the combustion chamber 2 that capacity is 15t.
Described stove is equipped with the natural gas/oxygen burner 24 that produces flame 11 in combustion chamber 2.Process according to heating cycle is controlled (control device 20 that is connected to flow rate of oxygen adjuster 15 and the natural gas flow rate adjuster 17) power of burner 24 and ratio of oxygen and natural gas automatically by described stove, as following described.
Tote 30 is made of the plumbous refuse that the automotive battery from crushing obtains.The significant part of this lead is lead oxides (PbO, PbO 2Deng) and plumbous sulfate (PbSO 4Deng) the form of " cream ".Be added with for the necessary material of reduced oxide for this metal tote, they partly be consisted of by coke (comprising high-load carbon) and be also referred to as " reactant ".
Plumbous removal process comprises heating tote 30, then tote is kept with the reactant thermo-contact in order to obtain liquid lead 4 and slag, and this slag is fixed impurity and the sulphur that is present in the plumbous sulfate.
Described stove works discontinuously.When beginning, loads combustion chamber 2 in each cycle.Then with burner 24 igniting, by control device 20 its power of modulation, so that the temperature of tote is followed the heating cycle of determining by experience.
During heating steps, be present in the gas that the main hot flue gas that is produced by burner 24 of most of carbon in the solids laden thing 30 and rotary type combustion chamber 2 consists of and react.
This reaction produces CO and H 2, it comes from the following reaction between the part carbon of partial fume and tote, and its mechanism can schematically show as follows:
CO 2+C→2CO
H 2O+C→H 2+CO。
For the formation of the CO in the gas of confinement cells 2, the oxygen that burner 24 can be adjusted in advance with surplus is injected in the chamber 2.But the reaction level that is present in the gas of carbon in the solids laden thing 30 and described stove changes according to the different parameters of this process, and such as the composition of tote particularly, this composition changes according to the source of the charging that will be recovered.
For the tote of 15t, according to the process of heating cycle with the power of burner 24 for example be adjusted to 1 and 1.5MW between.In the centre in cycle, the power that for example burner is adjusted to 1.3MW has following flow rate:
-natural gas 130Nm3/h
-purity oxygen 270Nm3/h.
The following composition that the analysis showed that to the flue gas 6 of discharging from described chamber:
-CO 2: 56%/CO:25%/H 2: 4%, all the other are N 2
The CO of flue gas and H 2Diluent air in the flame 12 of flue 13 inside burns, and described flue 13 comprises a bend in 2 downstreams, described chamber with near described chamber 2.Described diluent air is to enter surrounding air in the described flue 13 via the opening 14 that is arranged on for this purpose described bend downstream.This diluent air allows CO is burnt into CO 2And the filtration (not shown) that allows to carry out before flue gas is discharged is cooled off flue gas before.The CO of excessive level has a plurality of shortcomings in the flue gas 6:
The imperfect combustion of CO in the-flue 13, and therefore give off CO remaining in the flue 13;
The increase of the highly significant of flue-gas temperature in the-flue 13, thereby do not allow flue gas to enter the filter (not shown) in downstream, cause thus burner 24 power be forced to descend, perhaps or even burner 24 stopping under safe temperature, in order to allow to filter and meet environmental standard;
The too much consumption of-fuel, thereby and cause the decline of energy characteristics in the stove because reaction CO 2+ C → 2CO and H 2O+C → H 2+ CO absorbs heat.
The D-LX100 that sells by UV detector 10(Durag company according to the present invention) to mixture C O+H 2The intensity of the flame 12 that produces with the burning of the diluent air at outlet of still 5 tight rears detects, and makes it possible to proofread and correct by the ratio that acts on oxygen and natural gas the adjusting of burner 24.For this reason, detector 10 transmits the signal corresponding with detecting flame intensity to control device 20.
The bend of flue 13 and UV detector 10 have guaranteed that with respect to the location of described bend UV detector 10 only detects the intensity of the flame 12 of flue 13 inside, and not with the UV radiation interference of the burning of 2 inside, combustion chamber.
Particularly the intensity of the burning in flue 13 exceeds rule of thumb predetermined upper prescribing a time limit, and for example the invention enables can:
-by flow rate of oxygen adjuster 15 flow rate of oxygen is increased to 340Nm3/h, and it is constant that the flow rate of natural gas is remained on 130Nm3/h;
-by fuel flow rate adjuster 17 flow rate of fuel is reduced to 95Nm3/h, and it is constant that the flow rate of oxygen is remained on 270Nm3/h; With
-by adjuster 15 flow rate of oxygen is increased to 300Nm3/h and by adjuster 17 flow rate of natural gas is reduced to 110Nm3/h and modulate this two flow rates.
In these three kinds of situations, burner 24 sprays the oxygen of 70Nm3/h, and this is excessive with respect to initial adjustment.This excessive of oxygen then can be by the burning utilization of the incendiary material that is discharged by tote of stove 2 inside.
In a single day the flow rate of the incendiary material that is discharged by tote reduces, and further arrives the developing stage in cycle, then CO and the H in the flue 13 2The intensity of burning just reduce, and therefore the intensity of the flame 12 that is detected by detector 10 also reduce.
Then can be progressively the oxygen of burner 24 and the flow rate of natural gas be reduced to initial or predetermined basic flow rate, thereby and reduce the ratio of oxygen and natural gas.
That intensity (intensity of the flame 12 that detects) according to the second-time burning of the flue gas in the flue 13 is dynamically carried out to this adjusting of the ratio of oxygen and natural gas.
Improved significantly thus the energy characteristics of described stove 2, and guaranteed to flue gas effective processing, particularly to the filtration of flue gas.

Claims (15)

1. method of operating that comprises the Fuel Furnace of combustion chamber (2), in the method:
-with the flow rate after regulating primary oxidant is injected in the described combustion chamber (2);
-incendiary material is burnt with primary oxidant in combustion chamber (2), thus heat energy in the combustion chamber, produced and temperature is higher than 600 ℃ flue gas (6);
-pass through discharge line (13) with consequent flue gas (6) (2) discharge from the combustion chamber, the flue gas that is discharged from (6) can contain can be oxidized residual materials, the downstream of (2) is provided with entrance (14) for the dilution oxidant to this discharge line (13) in the combustion chamber;
-by the inner flame (12) of discharge line (13) make can be oxidized residual materials with the At The Height burning of dilution oxidant at the entrance (14) that is used for the dilution oxidant;
The method is characterized in that:
The flame intensity of the flame that-detection discharge line (13) is inner; With
The flame intensity that-basis detects is regulated the injection flow rate that is injected into the primary oxidant in the combustion chamber (2).
2. method according to claim 1, wherein:
-when being lower than predetermined lower bound, the flame intensity that detects reduces to be injected into the injection flow rate of the primary oxidant in the combustion chamber (2); With
-when being higher than predetermined upper prescribing a time limit, the flame intensity that detects increases the injection flow rate that is injected into the primary oxidant in the combustion chamber (2).
3. method according to claim 1, wherein;
-when be lower than the lower injection flow rate of prescribing a time limit or under the mean value of the flame intensity that detects is lower than, reducing to be injected into the primary oxidant in the combustion chamber (2) in limited time during predetermined lasting time Δ t1 in the flame intensity that detects during the predetermined lasting time Δ t1; With
-when being higher than, the mean value that is higher than in limited time or works as the flame intensity that detects in the flame intensity that detects during the predetermined lasting time Δ t2 during predetermined lasting time Δ t2 increases the injection flow rate that is injected into the primary oxidant in the combustion chamber (2) in limited time.
4. method of operating that comprises the Fuel Furnace of combustion chamber (2), in the method:
-with the flow rate after regulating primary oxidant and incendiary material are injected in the combustion chamber (2);
-incendiary material is burnt with primary oxidant in combustion chamber (2), thus heat energy in combustion chamber (2), produced and temperature is higher than 600 ℃ flue gas (6);
-pass through discharge line (13) with consequent flue gas (6) (2) discharge from the combustion chamber, the flue gas that is discharged from (6) can contain can be oxidized residual materials, the downstream of (2) is provided with entrance (14) for the dilution oxidant to this discharge line (13) in the combustion chamber;
-by the inner flame (12) of discharge line (13) make can be oxidized residual materials with the At The Height burning of dilution oxidant at the entrance (14) that is used for the dilution oxidant;
The method is characterized in that:
The flame intensity that-detection discharge line (13) is inner; With
-be injected into the injection flow rate of the primary oxidant in the combustion chamber (2) according to the flame intensity adjusting that detects, and the injection flow rate of regulating alternatively incendiary material.
5. method according to claim 4, wherein:
-ratio between the injection flow rate that detects the injection flow rate that reduces to be injected into the primary oxidant in the combustion chamber (2) when flame intensity is lower than predetermined lower bound and incendiary material; With
-be higher than ratio between the predetermined upper injection flow rate that increases the injection flow rate that is injected into the primary oxidant in the combustion chamber (2) and incendiary material in limited time when the flame intensity that detects.
6. method according to claim 5, wherein:
-when be lower than in the flame intensity that detects during the predetermined lasting time Δ t1 lower in limited time or be lower than ratio between the injection flow rate of the lower injection flow rate that reduces to be injected into the primary oxidant in the combustion chamber (2) in limited time and incendiary material when the mean value of the flame intensity that during predetermined lasting time Δ t1, detect; With
-when the ratio that is higher than in the flame intensity that detects during the predetermined lasting time Δ t2 in limited time or is higher than when the mean value of the flame intensity that during predetermined lasting time Δ t2, detect between the injection flow rate that increases the injection flow rate that is injected into the primary oxidant in the combustion chamber (2) and incendiary material in limited time.
7. according to claim 5 or 6 described methods, wherein, change the injection flow rate that is injected into the incendiary material in the combustion chamber (2) according to the heat energy demand in combustion chamber (2).
8. according to each described method in the aforementioned claim, wherein, by fluorescence detector, preferably determine flame intensity by the fluorescence detector of from UV-detector, infrared light detector and visible light detector, selecting.
9. Fuel Furnace comprises:
-combustion chamber (2);
-for the injection device (15,24) that primary oxidant is injected into combustion chamber (2) with the flow rate after regulating;
-being used for the pipeline (13) of (2) the discharge flue gases (6) from the combustion chamber, this pipeline (13) is included in the entrance (14) that is used for the dilution oxidant in downstream, combustion chamber (2),
This Fuel Furnace is characterised in that, also comprises:
-detector (10) is to detect discharge line (13) inside in the flame intensity of the At The Height of the entrance (14) that is used for the dilution oxidant.
10. Fuel Furnace according to claim 9 also comprises control module (20), and this control module is connected to (a) detector (10) and (b) is used for injecting the injection device (15,24) of primary oxidant, and this control module (20) is programmed to:
-the flame intensity that will detect by detector (10) and predetermined lower bound and the predetermined upper limit compare;
-when the flame intensity that detects is lower than predetermined lower bound, reduce to be injected into by the injection device (15,24) that is used for the injection primary oxidant injection flow rate of the primary oxidant in the combustion chamber (2); With
-when being higher than, the flame intensity that detects is scheduled to upper prescribing a time limit, increase by be injected into the injection flow rate of the primary oxidant in the combustion chamber (2) for the injection device (15,24) that injects primary oxidant.
11. Fuel Furnace according to claim 10, wherein, described control module (20) is programmed to:
-under being lower than, the flame intensity that detects for predetermined lasting time Δ t1 prescribes a time limit, or under the mean value of the flame intensity that detects during predetermined lasting time Δ t1 is lower than, prescribe a time limit, reduce to be injected into the injection flow rate of the primary oxidant in the combustion chamber (2); With
-be higher than in limited time when the flame intensity that detects for predetermined lasting time Δ t2, or be higher than in limited time when the mean value of the flame intensity that during predetermined lasting time Δ t2, detect, the injection flow rate that is injected into the primary oxidant in the combustion chamber (2) increased.
12. Fuel Furnace according to claim 9 also comprises for the injection device (17,24) that incendiary material is injected into combustion chamber (2) with the flow rate after regulating.
13. Fuel Furnace according to claim 12, also comprise control module (20), this control module is connected to (a) detector (10), (b) for the injection device (15 that injects primary oxidant, 24) and (c) be used for injecting the injection device (17 of incendiary material, 24), this control module (20) is programmed to:
-the flame intensity that will detect by detector (10) and predetermined lower bound and the predetermined upper limit compare;
-when the flame intensity that detects is lower than predetermined lower bound, reduce to be injected into the ratio between the injection flow rate of the injection flow rate of the primary oxidant in the combustion chamber (2) and incendiary material; With
-when the flame intensity that detects be higher than predetermined upper in limited time, increase the ratio between the injection flow rate of the injection flow rate that is injected into the primary oxidant in the combustion chamber (2) and incendiary material.
14. Fuel Furnace according to claim 13, wherein, described control module (20) is programmed to:
-under being lower than, the flame intensity that detects during predetermined lasting time Δ t1 prescribes a time limit, perhaps be lower than in limited time down when the mean value of the flame intensity that during predetermined lasting time Δ t1, detect, reduce to be injected into the ratio between the injection flow rate of the injection flow rate of the primary oxidant in the combustion chamber (2) and incendiary material; With
-when being higher than, the flame intensity that detects during predetermined lasting time Δ t2 prescribes a time limit, perhaps the mean value when the flame intensity that detect during predetermined lasting time Δ t2 is higher than in limited time, increases the ratio between the injection flow rate of the injection flow rate that is injected into the primary oxidant in the combustion chamber (2) and incendiary material.
15. each described Fuel Furnace according to claim 9-14, wherein, described flame detector (10) is selected from fluorescence detector, preferably selects from UV-detector, infrared light detector and visible light detector.
CN201180020107.7A 2010-04-23 2011-03-30 Fuel Furnace and the method for controlling the burning in Fuel Furnace Active CN102859307B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1053147 2010-04-23
FR1053147A FR2959298B1 (en) 2010-04-23 2010-04-23 FLAME OVEN AND METHOD FOR CONTROLLING COMBUSTION IN A FLAME OVEN
PCT/FR2011/050703 WO2011131880A1 (en) 2010-04-23 2011-03-30 Fuel-fired furnace and method for controlling combustion in a fuel-fired furnace

Publications (2)

Publication Number Publication Date
CN102859307A true CN102859307A (en) 2013-01-02
CN102859307B CN102859307B (en) 2015-08-19

Family

ID=43242840

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201180020107.7A Active CN102859307B (en) 2010-04-23 2011-03-30 Fuel Furnace and the method for controlling the burning in Fuel Furnace

Country Status (12)

Country Link
US (1) US20130115560A1 (en)
EP (1) EP2561295B1 (en)
JP (1) JP2013530366A (en)
CN (1) CN102859307B (en)
BR (1) BR112012027190B1 (en)
CA (1) CA2797168C (en)
ES (1) ES2675910T3 (en)
FR (1) FR2959298B1 (en)
PL (1) PL2561295T3 (en)
RU (1) RU2012149939A (en)
TR (1) TR201809425T4 (en)
WO (1) WO2011131880A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111121872A (en) * 2019-12-27 2020-05-08 液化空气(中国)投资有限公司 Device and method capable of monitoring and adjusting combustion condition in furnace in real time
CN111801527A (en) * 2018-03-02 2020-10-20 普莱克斯技术有限公司 Flame image analysis for furnace combustion control

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL2664884T3 (en) * 2012-05-18 2020-02-28 Air Products And Chemicals, Inc. Method and apparatus for heating metals
CN103363540B (en) * 2013-06-21 2016-04-27 广东电网公司电力科学研究院 Intensification afterburning system under a kind of Power Station Boiler in Low Loads runs
DE102014013474A1 (en) * 2014-09-11 2016-03-17 Linde Aktiengesellschaft Process for combustion of exhaust gas with oxygen supply
JP6547690B2 (en) * 2016-06-13 2019-07-24 トヨタ自動車株式会社 Melting method of die casting return material
DE102017007799A1 (en) * 2017-08-17 2019-02-21 Linde Aktiengesellschaft Furnace plant and method for operating a furnace
CN112066407B (en) * 2020-09-11 2023-03-28 富士特锅炉(天津)有限公司 Tangential diffusion coupling flue gas extrinsic cycle multi-element adjustable low-nitrogen combustion equipment
EP4033149A1 (en) * 2021-01-22 2022-07-27 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Monitoring combustible matter in a gaseous stream
CN114046501A (en) * 2021-11-16 2022-02-15 上海德律风置业有限公司 Boiler low-ammonia combustion device with improved function
EP4202297A1 (en) 2021-12-21 2023-06-28 L'Air Liquide, société anonyme pour l'Étude et l'Exploitation des procédés Georges Claude Combustion process

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85201091U (en) * 1985-04-01 1986-03-26 张承辉 Combustion monitoring and control device
CN85101184A (en) * 1985-04-01 1987-01-10 株式会社日立制作所 Combustion system
JPH01314809A (en) * 1988-06-14 1989-12-20 Ishikawajima Harima Heavy Ind Co Ltd Method and apparatus for controlling combustion of fluidized-bed type incinerator
CN2243602Y (en) * 1995-02-09 1996-12-25 重庆华夏新技术发展有限公司 Flame analyzer for combustion of boiler
CN1177076A (en) * 1996-04-17 1998-03-25 Bfi自动化公司 Process and device for controlling incineration process in boiler
JP2001004116A (en) * 1999-06-18 2001-01-12 Mitsubishi Heavy Ind Ltd Method and apparatus for controlling combustion in incinerator
CN1724928A (en) * 2005-07-08 2006-01-25 姜政华 Industrial boiler of multi-fuel burning using ultrafine coal dust as main fuel
CN101484753A (en) * 2006-09-04 2009-07-15 三菱重工业株式会社 Stoker-type incinerator and method for controlling combustion in the incinerator
CN101655245A (en) * 2009-09-04 2010-02-24 江苏焱鑫科技股份有限公司 Multiparameter automatic control method of industrial furnace burner

Family Cites Families (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1079945A (en) * 1964-07-24 1967-08-16 Satchwell Controls Ltd Improvements in flame supervision devices for burners
US3304989A (en) * 1964-11-19 1967-02-21 American Radiator & Standard Fuel feed control system responsive to flame color
US3476945A (en) * 1968-02-23 1969-11-04 Bailey Meter Co Flame detector for a multiple fuel-fired furnace
US3665440A (en) * 1969-08-19 1972-05-23 Teeg Research Inc Fire detector utilizing ultraviolet and infrared sensors
CH537066A (en) * 1971-04-08 1973-05-15 Cerberus Ag Flame detector
US4043742A (en) * 1976-05-17 1977-08-23 Environmental Data Corporation Automatic burner monitor and control for furnaces
US4498861A (en) * 1979-04-09 1985-02-12 Kobe Steel, Limited Method for controlling combustion in industrial furnaces
US4280184A (en) * 1979-06-26 1981-07-21 Electronic Corporation Of America Burner flame detection
DE3279061D1 (en) * 1981-04-16 1988-10-27 Emi Ltd Flame detector
US4493635A (en) * 1982-02-27 1985-01-15 Osaka Gas Company Limited Oxygen-enriched air ratio control device for combustion apparatus
US4477245A (en) * 1982-09-03 1984-10-16 The Babcock & Wilcox Company Flame monitoring safety, energy and fuel conservation system
US4484947A (en) * 1983-04-22 1984-11-27 North American Manufacturing Company Method for melting a charge of bulk solid metal
JPS60159515A (en) * 1984-01-27 1985-08-21 Hitachi Ltd Furnace system
US4620491A (en) * 1984-04-27 1986-11-04 Hitachi, Ltd. Method and apparatus for supervising combustion state
GB2184584B (en) * 1985-12-20 1989-10-25 Graviner Ltd Fire and explosion detection and suppression
JPH01244214A (en) * 1988-03-25 1989-09-28 Agency Of Ind Science & Technol Method and device for monitoring and controlling air ratio of burner in operation
US4882573A (en) * 1988-03-25 1989-11-21 Pullman Canada Ltd. Apparatus and method for detecting the presence of a burner flame
US5113770A (en) * 1991-06-10 1992-05-19 Godbe Murray C Apparatus for incinerating waste materials
US5222887A (en) * 1992-01-17 1993-06-29 Gas Research Institute Method and apparatus for fuel/air control of surface combustion burners
DE4202827A1 (en) 1992-01-31 1993-08-05 Linde Ag REGULATED OPERATION OF INDUSTRIAL OVENS
US5480298A (en) * 1992-05-05 1996-01-02 General Electric Company Combustion control for producing low NOx emissions through use of flame spectroscopy
US5332386A (en) * 1992-07-01 1994-07-26 Toyota Jidosha Kabushiki Kaisha Combustion control method
JPH0763311A (en) * 1993-08-27 1995-03-07 Sanyo Electric Co Ltd Incinerating device
US5424554A (en) * 1994-03-22 1995-06-13 Energy Kenitics, Inc. Oil-burner, flame-intensity, monitoring system and method of operation with an out of range signal discriminator
DE4428159C2 (en) * 1994-08-09 1998-04-09 Martin Umwelt & Energietech Process for controlling the combustion in incineration plants, in particular waste incineration plants
JPH0989226A (en) * 1995-09-25 1997-04-04 Hitachi Zosen Corp Electric ash melting furnace and waste gas combustion method by the melting furnace
JPH09178152A (en) * 1995-12-28 1997-07-11 Hitachi Zosen Corp Structure of exhaust gas combustion section of electrical ash melting furnace
US6045353A (en) * 1996-05-29 2000-04-04 American Air Liquide, Inc. Method and apparatus for optical flame control of combustion burners
US5829962A (en) * 1996-05-29 1998-11-03 L'air Liquide, Societe Anonyme Pour L'etude Et, L'exploitation Des Procedes Georges Method and apparatus for optical flame control of combustion burners
JPH10110911A (en) * 1996-10-08 1998-04-28 Nobuhiro Suzuki Combustor
JP3607058B2 (en) * 1997-09-05 2005-01-05 三菱電機株式会社 Incinerator and operation control method for incinerator
JP3790979B2 (en) * 1997-09-08 2006-06-28 前島 文夫 Toxic substance removal incinerator
JPH11257637A (en) * 1998-03-11 1999-09-21 Sanyo Electric Co Ltd Method of controlling burner fan for combustion burner of incinerator
JP3625639B2 (en) * 1998-03-19 2005-03-02 日立造船株式会社 Fluidized bed incinerator equipment and combustion control method for fluidized bed incinerator equipment
FR2777075B1 (en) * 1998-04-02 2000-05-19 Air Liquide METHOD FOR OPERATING AN OVEN AND DEVICE FOR IMPLEMENTING THE METHOD
JP3668010B2 (en) * 1998-09-29 2005-07-06 株式会社日立製作所 Waste incineration equipment and its control method
JP3859926B2 (en) * 2000-01-24 2006-12-20 株式会社神鋼環境ソリューション Method and apparatus for controlling combustion air in pyrolysis gasification melting system
JP3806306B2 (en) * 2001-01-16 2006-08-09 三菱重工業株式会社 Secondary combustion apparatus for ash melting furnace and method of operating secondary combustion apparatus
US6404342B1 (en) * 2001-09-14 2002-06-11 Honeywell International Inc. Flame detector using filtering of ultraviolet radiation flicker
ES2201885B1 (en) 2001-11-16 2005-06-01 Al Air Liquide España, S.A. PROCEDURE FOR THE FUSION OF AN ALUMINUM LOAD.
FR2832732B1 (en) 2001-11-29 2004-02-13 Air Liquide USE OF FUME ANALYSIS IN ALUMINUM OVENS
JP2003302022A (en) * 2002-04-10 2003-10-24 Ebara Corp Melting furnace, operation method for melting furnace and gasification melting system
JP2004012047A (en) * 2002-06-07 2004-01-15 Jfe Engineering Kk Incinerator and operation method for it
AU2003209925A1 (en) 2003-03-21 2004-10-11 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Process for melting an aluminum charge containing organic material
WO2005024398A1 (en) 2003-09-01 2005-03-17 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for measuring gaseous species by derivation
FR2866656B1 (en) * 2004-02-25 2006-05-26 Air Liquide PROCESS FOR TREATING ALUMINUM IN A ROTARY OR REVERB FURNACE
JP2006046867A (en) * 2004-08-09 2006-02-16 Miura Co Ltd Ignition method for combustion system
AU2005229668B2 (en) * 2004-11-04 2008-03-06 Babcock-Hitachi K.K. Overfiring air port, method for manufacturing air port, boiler, boiler facility, method for operating boiler facility and method for improving boiler facility
ES2326568B1 (en) 2005-05-04 2010-07-15 Al Air Liquide España, S.A. PROCEDURE FOR THE FUSION OF A FERROUS LOAD AND CONTROL SYSTEM OF THE CONCENTRATION OF UNQUEMED IN A FUSION OVEN.
JP3963925B2 (en) * 2005-11-08 2007-08-22 株式会社神鋼環境ソリューション Secondary combustion method and apparatus in incineration system
DE102006060869A1 (en) * 2006-12-22 2008-06-26 Khd Humboldt Wedag Gmbh Method for controlling the operation of a rotary kiln burner
JP5228511B2 (en) * 2008-02-07 2013-07-03 株式会社Ｉｈｉ Pyrolysis equipment
JP5243840B2 (en) * 2008-05-01 2013-07-24 株式会社タクマ Combustion method of stoker type incinerator
EP2159525A1 (en) 2008-08-29 2010-03-03 Air Liquide Deutschland GmbH Method for operating an oven and device for carrying out the method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85201091U (en) * 1985-04-01 1986-03-26 张承辉 Combustion monitoring and control device
CN85101184A (en) * 1985-04-01 1987-01-10 株式会社日立制作所 Combustion system
JPH01314809A (en) * 1988-06-14 1989-12-20 Ishikawajima Harima Heavy Ind Co Ltd Method and apparatus for controlling combustion of fluidized-bed type incinerator
CN2243602Y (en) * 1995-02-09 1996-12-25 重庆华夏新技术发展有限公司 Flame analyzer for combustion of boiler
CN1177076A (en) * 1996-04-17 1998-03-25 Bfi自动化公司 Process and device for controlling incineration process in boiler
JP2001004116A (en) * 1999-06-18 2001-01-12 Mitsubishi Heavy Ind Ltd Method and apparatus for controlling combustion in incinerator
CN1724928A (en) * 2005-07-08 2006-01-25 姜政华 Industrial boiler of multi-fuel burning using ultrafine coal dust as main fuel
CN101484753A (en) * 2006-09-04 2009-07-15 三菱重工业株式会社 Stoker-type incinerator and method for controlling combustion in the incinerator
CN101655245A (en) * 2009-09-04 2010-02-24 江苏焱鑫科技股份有限公司 Multiparameter automatic control method of industrial furnace burner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111801527A (en) * 2018-03-02 2020-10-20 普莱克斯技术有限公司 Flame image analysis for furnace combustion control
CN111121872A (en) * 2019-12-27 2020-05-08 液化空气(中国)投资有限公司 Device and method capable of monitoring and adjusting combustion condition in furnace in real time
CN111121872B (en) * 2019-12-27 2022-07-15 液化空气(中国)投资有限公司 Device and method capable of monitoring and adjusting combustion condition in furnace in real time

Also Published As

Publication number Publication date
US20130115560A1 (en) 2013-05-09
RU2012149939A (en) 2014-05-27
EP2561295A1 (en) 2013-02-27
BR112012027190A2 (en) 2016-07-19
CA2797168C (en) 2018-07-03
TR201809425T4 (en) 2018-07-23
PL2561295T3 (en) 2018-11-30
EP2561295B1 (en) 2018-05-16
CA2797168A1 (en) 2011-10-27
WO2011131880A1 (en) 2011-10-27
ES2675910T3 (en) 2018-07-13
CN102859307B (en) 2015-08-19
JP2013530366A (en) 2013-07-25
FR2959298A1 (en) 2011-10-28
FR2959298B1 (en) 2012-09-21
BR112012027190B1 (en) 2020-11-03

Similar Documents

Publication Publication Date Title
CN102859307B (en) Fuel Furnace and the method for controlling the burning in Fuel Furnace
US6296479B1 (en) Direct reduction method and rotary hearth furnace
HU215884B (en) Method of reducing the nox and co content in the waste gases leaving a furnace producing plate-glass and improved plate-glass producing furnaces
MX2007010342A (en) Combustion method and system.
CN105115309A (en) Device for achieving ultralow nitrogen oxide emission of heating furnace and process thereof
CN101233377B (en) Method for calcination of a material with low NOx emissions
CN101839473A (en) Flue gas recirculation high temperature air energy-saving and environmental protection combustion technology
NL1015519C2 (en) Flue gas recirculation at a waste incineration plant.
EP0432293B1 (en) Method for recovering waste gases from coal combustor
CN103380216B (en) Apparatus and method for heating a blast furnace stove
CN111250510B (en) Flying ash melting treatment device and flying ash melting treatment method operating in sections
RU2336465C2 (en) Method of plasma-coal kindling of boiler
TWI429872B (en) Melting furnace
CN208871646U (en) A kind of sulfur recovery facility tail gas burning furnace
KR20150068918A (en) Method for heating a metal material in an industrial furnace
CN209196868U (en) The low nitrogen of carbon black tail gas surely fires system
CN204923923U (en) Realize device of ultralow nitrogen oxide of heating furnace emission
CN202993174U (en) Fire coal gas combination type high-efficiency low discharge grate firing device
KR20140012101A (en) Method for heating a blast furnace stove
CN109340789A (en) The steady combustion process of the low nitrogen of carbon black tail gas and the low nitrogen of carbon black tail gas surely fire system
JP2585798B2 (en) Low NOx combustion device
CN111121064A (en) Waste liquid oxygen-enriched incineration device
CN215675229U (en) Burn burning furnace to combustible waste gas environment-friendly
JP3217470B2 (en) Boiler equipment
JP2665486B2 (en) gas turbine

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant