CN102269515A - Melting furnace - Google Patents
Melting furnace Download PDFInfo
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- CN102269515A CN102269515A CN2011101614990A CN201110161499A CN102269515A CN 102269515 A CN102269515 A CN 102269515A CN 2011101614990 A CN2011101614990 A CN 2011101614990A CN 201110161499 A CN201110161499 A CN 201110161499A CN 102269515 A CN102269515 A CN 102269515A
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- air
- auxiliary
- combustion air
- melting furnace
- burner
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/20—Arrangements of heating devices
- F27B3/205—Burners
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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
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/0014—Devices for monitoring temperature
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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
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0001—Heating elements or systems
- F27D99/0033—Heating elements or systems using burners
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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
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0031—Regulation through control of the flow of the exhaust gases
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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
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Air Supply (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention provides a melting furnace, which has the advantages of energy saving, low NOx and simple structure. The melting furnace (1) comprises a furnace body (2). Melting material (As) is accommodated inside the furnace body (2). A burner (3) is provided for providing a concentrated flame to the melting material. An auxiliary air nozzle (4) is provided for providing auxiliary flame air to the furnace body (2). The auxiliary flame air is used for the self combustion of the residual fuel in the flame gas burned by the burner (3). A control unit (10) is provided for reducing the flow of the main flame air and increasing the flow of the auxiliary combustion air.
Description
Technical field
The present invention relates to melting furnace.
Background technology
From point of view of environment protection, also require the low NOxization of waste gas for the melting furnace of the waste material (being melted material) of melting aluminum or copper etc.For example put down in writing a kind of melting furnace in the patent documentation 1, this melting furnace is provided with supplies with fuel from the position of separating and air makes the burner of its smoulder (diffusion combustion) in stove, thereby has reduced NOx.Also put down in writing the technical scheme of in melting furnace, using heat-storage type burner (Regenerative Burner) in the patent documentation 1, the described heat-storage type burner running of burning as described below: make a pair of burner alternate-running with heat storage, discharge burnt gas and utilize heat storage to carry out recuperation of heat via unburned burner, utilize the heat storage preheated burning air that has carried out recuperation of heat from burnt gas.
But for example record in the non-patent literature 1 in melting furnace, is transmitted heat efficiently by making flame impingement be melted material, can improve burn-off rate.Therefore,, think, preferably by supplying with and make its concentrated combustion to form the high concentrated flame burning device of directive property that is melted material with the kinetic energy impact fuel and air mixing for melting furnace from energy-conservation angle.
In addition, as record in the patent documentation 2, in melting furnace, use under the situation of burner of diffusion combustion mode, also there are the following problems: low temperature be melted material is deposited in burner at start of run the place ahead, therefore the material that is melted of unburned fuel and low temperature contacts and imperfect combustion, generation cigarette ash takes place.Therefore, proposed a kind of melting furnace in the patent documentation 2, this melting furnace is provided with the main burner that carries out diffusion combustion and forms the auxiliary burner that impacts the concentrated flame that is melted material.If a plurality of burners are set like this, then structure becomes complicated, and the price of melting furnace raises.
Patent documentation 1: Japanese patent laid-open 8-94253 communique
Patent documentation 2: Japanese patent laid-open 11-325734 communique
Non-patent literature 1: go up that the wife learns and, " using the present situation of energy-conservationization of the aluminium melting furnace of heat-storage type burner ", AL, light metal communication AL society of Co., Ltd., in July, 2009 number, 17-20 page or leaf
Summary of the invention
In view of the above problems, problem of the present invention provides the melting furnace simple in structure of a kind of energy-conservation and low NOx.
For addressing the above problem, melting furnace of the present invention comprises: body of heater, this body of heater are taken in and are melted material; Burner, this burner can impact the described concentrated flame that is melted material by fuel and main combustion air mixed combustion be formed, and can reduce the flow of described main combustion air and only make the part burning of described fuel; Auxiliary air nozzle, this auxiliary air nozzle are supplied with the auxiliary combustion air in described body of heater, this auxiliary combustion air is used for making the remaining fuel spontaneous combustion of burning gases after burning by described burner; Control module, this control module reduces the flow of the described main combustion air of described burner in the described material fusing back that is melted, and increases the flow of the described auxiliary combustion air of described auxiliary air nozzle.
Utilize this structure, can make the concentrated flame of burner directly contact and transmit efficiently heat, thereby promotion is melted the fusing of material, till being melted the material fusing with being melted material.In addition, after being melted the material fusing, by reducing main combustion air, make and only concentrate in the flame that some fuel can burn, make fuel residual in the fuel gas under the effect of the air of supplying with by the auxiliary air nozzle in stove diffusion combustion dispersedly everywhere, thereby can carry out radiation heating to the whole surface that is melted the liquation that material fusing forms, promote the rising of melt temperature.In addition, by making the fuel diffusion combustion, also can suppress the generation of NOx.
In addition, in the melting furnace of the present invention, if make the described flow that is melted the described main combustion air after the material fusing in coefficient of excess air below 0.2, then can suppress the generation of NOx fully.
In addition, in the melting furnace of the present invention, if the total flow of described main combustion air and described auxiliary combustion air is brought down below the described degree that is melted before material melts with respect to the coefficient of excess air of the theoretical air requirement of the fuel flow rate of described burner described being melted after material melts, then can prevent the imperfect combustion of the concentrated flame of start of run, reduce the NOx be used for making the diffusion combustion that liquation heats up.
In addition, in the melting furnace of the present invention, the unfused material that is melted can block concentrated flame, so flame radiation heat can't arrive its part behind, temperature reduction.Therefore, the described molten state that is melted material can detect according to the Temperature Distribution in the stove.
In addition, in the melting furnace of the present invention that the formation position of the state of flame and flame can change, if temperature sensor is set in stove, the error that then can cause because of the influence of flame radiation heat detecting temperature increases.Therefore, can detect the temperature of waste gas in the flue that is not subjected to Fire Radiation, thereby as the index of temperature in the stove.And, because temperature raises along with the carrying out of the fusing that is melted material in the stove, so can infer the molten state that is melted material according to the EGT in the flue.
As mentioned above, utilize the present invention,, just both can make and concentrate flame impingement to be melted material to come efficiently can to utilize diffusion flame to come efficiently all melt high-efficiency ground to be carried out radiation heating again its fusing by 1 burner.By this, but melting furnace fuel saving of the present invention consumption realizes energy-conservationization, and can maintain the NOx concentration in the waste gas low-level.
Description of drawings
Fig. 1 is the structure chart of the melting furnace of embodiments of the present invention 1.
Fig. 2 is the figure of the respective air flow in the melting furnace of presentation graphs 1.
Fig. 3 is the figure of the overall air mass flow in the melting furnace of presentation graphs 1.
Fig. 4 is the structure chart of the melting furnace of embodiments of the present invention 2.
Fig. 5 is the figure of the air mass flow in the melting furnace of presentation graphs 4.
Fig. 6 is the structure chart of the melting furnace of embodiments of the present invention 3.
The explanation of symbol
1,1a, 1b ... melting furnace
2 ... body of heater
3 ... burner
4 ... the auxiliary air nozzle
5 ... flue
7 ... air supply fan
8 ... homophony is put in order valve
9 ... the auxiliary valve of adjusting
10 ... control device
11 ... temperature sensor
12 ... heat storage
18 ... temperature sensor
The specific embodiment
Below, with reference to accompanying drawing embodiments of the present invention are described.At first, Figure 1 shows that the structure of the melting furnace 1 of embodiments of the present invention 1.Melting furnace 1 comprises: body of heater 2, the mode that this body of heater 2 can be piled up with the mountain shape shown in double dot dash line is taken in and is melted material (aluminium waste) A
s, and can shown in solid line, store by being melted the liquation A that the material fusing forms
m Burner 3, this burner 3 will burn (for example LNG) and air (main combustion air) mixes and to body of heater 2 internal spray, make its burning and form concentrated flame; Auxiliary air nozzle 4, this auxiliary air nozzle 4 can be from importing the auxiliary combustion air to body of heater 2 inside near the burner 3.
Burning gases in the body of heater 2 are discharged via recuperator (recuperator) 6 from flue 5.Recuperator 6 is at this waste gas and be supplied between the auxiliary combustion air of auxiliary air nozzle 4 and carry out heat exchange, thereby carries out recuperation of heat.Main combustion air and auxiliary combustion air are supplied with by air supply fan 7.The flow of main combustion air is regulated by the whole valve 8 of homophony, and the flow of auxiliary combustion air is regulated by the auxiliary valve 9 of adjusting.Whole valve 8 of homophony and the auxiliary aperture of adjusting valve 9 are regulated according to the EGT that is detected by the temperature sensor 11 of being located at flue 5 by the control device (control module) 10 that is made of computer.
Among Fig. 2 with respect to the ratio of the theoretical air requirement of the fuel that is supplied to burner 3, be that coefficient of excess air shows the main combustion air in the melting furnace 1 and the flow of auxiliary combustion air.In the melting furnace 1, the fuel of the maximum combustion amount of supplied burner 3 till EGT for example reaches 1200 ℃, maintains 1200 ℃ by regulate fuel flow with EGT then.Then, melting furnace 1 is proceeded the burning running in that EGT is maintained under 1200 ℃ the situation, till the temperature of liquation reaches set point of temperature.
As shown in the figure, in the melting furnace 1, not supplying with the auxiliary combustion air, is 1.2 main combustion air to burner 3 air supply coefficient of excess, makes burner 3 completing combustions, reaches till 500 ℃ until EGT.At this moment, the fuel of supply is all in the internal-combustion of concentrating flame.The rectilinear propagation of burner 3 formed concentrated flames, be that directive property is good, impact the materials A that is melted that the mountain shape piles up
s, utilize its kinetic energy that heat is passed to efficiently and be melted materials A
s
The fusion temperature of aluminium is 660 ℃, therefore can think if EGT reaches 500 ℃, then directly is exposed to the materials A that is melted of concentrating flame
sReach higher temperature, at least a portion fusing becomes liquation A
mTherefore, in the melting furnace 1, if EGT reaches more than 500 ℃, then can reduce the flow of the main combustion air of burner 3, and the auxiliary combustion air is supplied to body of heater 2 inside from auxiliary air nozzle 4.
By reducing the flow of main combustion air, in the concentrated flame of burner 3, a part of fuel unburned is and residual, and the burning gases that comprise unburned fuel diffuse in the body of heater 2.These burning gases have the above temperature of ignition point of fuel, thus in unburned fuel and the auxiliary combustion air by 4 supplies of auxiliary air nozzle contained oxygen meet will spontaneous combustion.That is, a part that is supplied to the fuel of burner 3 breaks away from from concentrating flame, diffuses to body of heater 2 inner and burnings simultaneously, forms diffusion flame throughout.
This diffusion flame also is formed on the part of concentrating flame to arrive, by radiant heat to the solid-state materials A that is melted
sWith liquation A
mHeating.If be melted materials A
sFusing carry out liquation A
mIncrease, then concentrate flame to carry out local heat with utilization and compare, the method for utilizing diffusion flame to carry out the radiation heating of globality can be transmitted heat more efficiently.Therefore, as shown in Figure 2,, reduce the flow of main combustion air gradually in the melting furnace 1, increase the flow of auxiliary combustion air simultaneously gradually along with the rising of EGT.
In the melting furnace 1,, then can think to be melted materials A if EGT reaches 800 ℃
sRoughly all be fused into liquation A
mTherefore, in the melting furnace 1, when EGT reaches 800 ℃, the coefficient of excess air of main combustion air is set at 0.1, the coefficient of excess air of auxiliary combustion air is set at 1.0.Here, as shown in Figure 3, the overall coefficient of excess air of main combustion air and auxiliary combustion air is labeled as 1.1.This is because in melting furnace 1, owing to make fuel diffusion and smoulder when high temperature, the formation during therefore with low temperature concentrates the situation of flame to compare, even also can make the burning of fuel noresidue ground with lower coefficient of excess air.
In the melting furnace 1,, can suppress the generation of NOx by reducing coefficient of excess air as mentioned above.Reducing for obtaining the effect of NOx, better is that the coefficient of excess air with main combustion air is made as below 0.2.Though can further reduce the coefficient of excess air of main combustion air, owing to will keep the just concentrated flame of needs reservation of flame, therefore the coefficient of excess air of main combustion air need be guaranteed about 0.01 at least.
In addition, though the temperature of the burning gases of the temperature of the waste gas in the flue 5 and body of heater 2 inside is roughly the same, if but temperature sensor 11 were located at body of heater 2 inside, then temperature sensor 11 self would directly be heated by flame radiation heat, thereby can detect the temperature higher than the temperature of burning gases.In the melting furnace 1,,, be difficult to rule of thumb proofread and correct and detect temperature so the detection error that is caused by the flame radiation thermal conductance is non-constant because the formation position of the state of flame and flame can change.Therefore, in the melting furnace 1, temperature sensor 11 is located at the flue 5 of the influence that does not have flame radiation.
Then, Figure 4 shows that the structure of the melting furnace 1a of embodiments of the present invention 2.Below in the explanation, the inscape identical with the embodiment of above explanation is marked with identical symbol, omits repeat specification.Melting furnace 1a comprises 2 paired burners 3 and comprises 2 paired auxiliary air nozzles 4.Auxiliary air nozzle 4 has heat storage 12 respectively, can supply with the auxiliary combustion air via heat storage 12.
The main combustion air of regulating flow by the whole valve 8 of homophony only is supplied to the burner 3 of a side of being selected by main supply valve 13, has only the running of burning of a burner 3.In addition, regulate the auxiliary combustion air of flow and be supplied to body of heater 2 inside by auxiliary air nozzle 4 by the auxiliary valve 9 of adjusting, this auxiliary air nozzle 4 is auxiliary air nozzles that select by auxiliary supply valve 14 and burner 3 homonymies that burning.
In addition, auxiliary air nozzle 4 is adjusted the exhaust flow path of valve 16 and exhaust fan 17 and is connected with comprising exhaust via air bleeding valve 15, also the burning gases in the body of heater 2 can be discharged via heat storage 12.
Promptly, among the melting furnace 1a, when carrying out diffusion combustion, supply with the auxiliary combustion air by one in the auxiliary air nozzle 4, via the burning gases in another auxiliary air nozzle 4 discharging bodies of heater 2, by making their alternate-runnings, can obtain to utilize heat storage 12 to carry out the effect that recuperation of heat comes the so-called heat-storage type burner of preheating auxiliary combustion air from waste gas.
In addition, among the melting furnace 1a, balance for the heating and cooling that keep heat storage 12, regulate exhaust and adjust the aperture of valve 16, make the total amount that is equivalent to the main combustion air supplied with to body of heater 2 via burner 3 and the burning gases of about 20% amount of the auxiliary combustion air supplied with to body of heater 2 via auxiliary air nozzle 4 are discharged via flue 5.
Figure 5 shows that the main combustion air among the melting furnace 1a of present embodiment and the flow of auxiliary combustion air.In the present embodiment, when the EGT in flue 5 is low, the coefficient of excess air of the main combustion air of burner 3 is controlled at 0.5, importing coefficient of excess air by auxiliary air nozzle 4 is 0.7 auxiliary combustion air.In addition, in the present embodiment, be not that the flow of main combustion air and auxiliary combustion air is gradually changed, but reach 800 ℃ at EGT, think when being melted material all melts that the coefficient of excess air with main combustion air becomes 0.1, the coefficient of excess air of auxiliary combustion air is become 1.0, change the ratio of concentrated combustion and diffusion combustion in discontinuous mode.
In addition, among the melting furnace 1a of present embodiment, suppose at the liquation A that will arrive set point of temperature
mSupply with immediately after the discharge and be melted materials A
s, reach at body of heater 2 under the state of high temperature of certain degree and begin the running of next time burning.But EGT is lower than under 300 ℃ the situation when phase that shuts down finishes back entry into service just etc., also the coefficient of excess air of main combustion air can be made as 1.2, does not import the auxiliary combustion air, only comes entry into service by concentrated combustion.
Certainly, as shown in Figure 2, in the melting furnace 1a that the device of the present embodiment with heat storage 12 constitutes, also can reduce main combustion air accordingly with the rising of EGT and increase the auxiliary combustion air, concentrate the ratio of flame and diffusion flame to change continuously thereby make.
In addition, Figure 6 shows that the melting furnace 1b of embodiments of the present invention 3.In the present embodiment, form direction at the top of body of heater 2 along the flame of burner 3 and dispose a plurality of temperature sensors 18.As mentioned above, each temperature sensor 18 that is exposed to body of heater 2 inside not only detects the temperature of the burning gases of body of heater 2 inside, also detects burner 3 formed flame radiation heat.
As shown in the figure, there is the solid-state materials A that is melted
sSituation under, burner 3 formed concentrated flames are because of being melted materials A
sAnd be blocked halfway.Therefore, only be located at temperature sensor 18 near the position of the burner 3 in the burning running and can detect and concentrate flame radiation heat, detect than away from the higher temperature of the temperature sensor 18 of a side of the burner 3 in the burning running.That is, can think detect the higher temperature sensor of temperature 18 under be melted materials A
sMelt.
If be melted materials A
sAll be fused into liquation A
m, then concentrate flame to run through body of heater 2 inside, all temperature sensors detect all roughly the samely concentrates flame radiation heat.Therefore, among the melting furnace 1b, the difference that detects temperature of temperature sensor 18 reaches certain set point of temperature when following, is judged as and is melted materials A
sBe fused into liquation A
mThereby, reduce the flow of main combustion air, increase the flow of auxiliary combustion air, reduce to concentrate flame, make the residual fuel diffusion combustion.
Among the present invention, except that the method for above-mentioned embodiment, for example also can be provided for taking the video camera of body of heater 2 inside, handle by image and judge and be melted materials A
sThe fusing degree.
Should be understood that in addition terms such as main combustion air among the present invention, auxiliary combustion air are meant the gas of supplying with the required oxygen of burning, all be comprised in the above-mentioned term as any gas in oxygen supply source.
Claims (5)
1. a melting furnace is characterized in that, comprising:
Body of heater, this body of heater are taken in and are melted material;
Burner, this burner can impact the described concentrated flame that is melted material by fuel and main combustion air mixed combustion be formed, and can reduce the flow of described main combustion air and only make the part burning of described fuel;
Auxiliary air nozzle, this auxiliary air nozzle are supplied with the auxiliary combustion air in described body of heater, this auxiliary combustion air is used for making the remaining fuel spontaneous combustion of burning gases after burning by described burner;
Control module, this control module reduces the flow of the described main combustion air of described burner in the described material fusing back that is melted, and increases the flow of the described auxiliary combustion air of described auxiliary air nozzle.
2. melting furnace as claimed in claim 1 is characterized in that, the described flow that is melted the described main combustion air after the material fusing in coefficient of excess air below 0.2.
3. melting furnace as claimed in claim 1 or 2, it is characterized in that the total flow of described main combustion air and described auxiliary combustion air is brought down below the described degree that is melted before material melts with respect to the coefficient of excess air of the theoretical air requirement of the fuel flow rate of described burner described being melted after material melts.
4. as each described melting furnace in the claim 1～3, it is characterized in that described control module detects the described molten state that is melted material according to the Temperature Distribution in the stove.
5. as each described melting furnace in the claim 1～4, it is characterized in that described control module is inferred the described molten state that is melted material according to the EGT in the flue.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-129025 | 2010-06-04 | ||
| JP2010129025A JP5203421B2 (en) | 2010-06-04 | 2010-06-04 | melting furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102269515A true CN102269515A (en) | 2011-12-07 |
| CN102269515B CN102269515B (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110161499.0A Active CN102269515B (en) | 2010-06-04 | 2011-06-02 | Melting furnace |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5203421B2 (en) |
| KR (1) | KR101269794B1 (en) |
| CN (1) | CN102269515B (en) |
| TW (1) | TWI429872B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453780B (en) * | 2013-09-03 | 2015-03-04 | 南通曼特威金属材料有限公司 | Automatic energy-saving heat-accumulating burner for use in smelting |
| CN104534863A (en) * | 2014-12-12 | 2015-04-22 | 魏伯卿 | Oxygen-enriched energy-saving and emission-reducing system of aluminum melting furnace |
| KR101714347B1 (en) * | 2016-09-22 | 2017-03-09 | 윤서구 | High efficiency furnace using waste heat |
| JP6726914B1 (en) * | 2019-09-10 | 2020-07-22 | サンコーアルミ株式会社 | Aluminum recovery method and recovery device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60172761U (en) * | 1984-04-20 | 1985-11-15 | 新日本製鐵株式会社 | aluminum melting furnace |
| JPH024191A (en) * | 1988-06-21 | 1990-01-09 | Kobe Steel Ltd | Temperature control of smelting furnace |
| CN101688662A (en) * | 2007-06-29 | 2010-03-31 | 普莱克斯技术有限公司 | Low velocity staged combustion for furnace atmosphere control |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52156427A (en) * | 1976-06-22 | 1977-12-26 | Sumitomo Metal Ind Ltd | Combustion method and its device for upper stoking system soaking pit |
| JPS59157218A (en) * | 1983-02-24 | 1984-09-06 | Daido Steel Co Ltd | Heating furnace |
| JPH0726730B2 (en) * | 1987-12-23 | 1995-03-29 | 東京瓦斯株式会社 | Combustion method in furnace |
| JP3462394B2 (en) * | 1998-07-24 | 2003-11-05 | Ｊｆｅスチール株式会社 | Combustion control method of regenerative burner device and burner device |
| JP3394500B2 (en) * | 1999-06-25 | 2003-04-07 | 三建産業株式会社 | Non-ferrous metal melting furnace |
| JP4693968B2 (en) * | 2000-09-11 | 2011-06-01 | 大陽日酸株式会社 | Furnace operation method |
-
2010
- 2010-06-04 JP JP2010129025A patent/JP5203421B2/en active Active
-
2011
- 2011-02-16 TW TW100105066A patent/TWI429872B/en active
- 2011-04-06 KR KR1020110031600A patent/KR101269794B1/en active IP Right Grant
- 2011-06-02 CN CN201110161499.0A patent/CN102269515B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60172761U (en) * | 1984-04-20 | 1985-11-15 | 新日本製鐵株式会社 | aluminum melting furnace |
| JPH024191A (en) * | 1988-06-21 | 1990-01-09 | Kobe Steel Ltd | Temperature control of smelting furnace |
| CN101688662A (en) * | 2007-06-29 | 2010-03-31 | 普莱克斯技术有限公司 | Low velocity staged combustion for furnace atmosphere control |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011257014A (en) | 2011-12-22 |
| KR101269794B1 (en) | 2013-05-30 |
| JP5203421B2 (en) | 2013-06-05 |
| CN102269515B (en) | 2014-01-08 |
| KR20110133414A (en) | 2011-12-12 |
| TWI429872B (en) | 2014-03-11 |
| TW201207345A (en) | 2012-02-16 |
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