CN105823045A - Converter gas nozzle for RH refining furnace and RH refining furnace - Google Patents
Converter gas nozzle for RH refining furnace and RH refining furnace Download PDFInfo
- Publication number
- CN105823045A CN105823045A CN201610340291.8A CN201610340291A CN105823045A CN 105823045 A CN105823045 A CN 105823045A CN 201610340291 A CN201610340291 A CN 201610340291A CN 105823045 A CN105823045 A CN 105823045A
- Authority
- CN
- China
- Prior art keywords
- layer
- burner
- converter
- refining furnace
- coal gas
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
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- 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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/78—Cooling burner parts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a converter gas nozzle for an RH refining furnace. The converter gas nozzle comprises an igniter layer, a converter gas layer, a combustion-supporting oxygen layer and a cooling water layer, wherein the converter gas layer, the combustion-supporting oxygen layer and the cooling water layer are sequentially arranged on the periphery of the igniter layer; a nozzle head part is formed in the front end of the nozzle, and an oxygen spray hole communicated with the combustion-supporting oxygen layer is formed in the nozzle head part; the nozzle for the RH refining furnace is subject to converter gas transformation, according to the same baking curve, it is ensured that under the corresponding pressure and flow speed, converter gas and oxygen are mixed well, complete burning is achieved, and the expected baking effect is achieved; the baking temperature of a vacuum tank is up to 1300 DEG C, production is met, more importantly, surplus converter gas of the company is utilized for greatly reducing consumption of natural gas, and economic benefits and social benefits are obvious; and meanwhile, the situation that an existing nozzle takes natural gas or coke oven gas as a medium is overcome, and the baking field of taking the converter gas as the medium can be met.
Description
Technical field
The invention belongs to the baking gun design field of RH refining furnace, be specifically related to a kind of RH refining furnace coal gas of converter burner and RH refining furnace.
Background technology
Baking gun is a kind of grilled gun used on converter, and it is the important plant equipment of one of molten steel vacuum refining (RH method), and it is functional shows that it has Baking out vacuum tank, makes cell wall temperature be increased to more than 1450 DEG C, to reduce steel bonding.The baking gun used on current domestic metallurgical equipment depends on import for a long time, relatively costly.
Baking gun gun body can enter vacuum tank by the rifle hole on hot-bending pipe, the medium such as blows air, oxygen and natural gas in vacuum tank, the heating to vacuum tank, thus resistance to material temperature in keeping its groove, or resistance to material repair after resistance to material is toasted, is heated to required temperature.
Development along with steel industry, RH vacuum drying oven refine becomes steel industry excellent special steel product transformation and the first-selected technique of enterprise's increase profit, increasing iron and steel enterprise has selected RH furnace outer refining process, wherein the baking of the resistance to material of vacuum tank and dip pipe is the important step in RH technique, and the factory cost that decide RH controls.Using outsourcing natural gas or coke-stove gas baking the baking of the existing vacuum tank of China, relatively costly, wherein the direct medium cost of natural gas baking reaches 10 yuan/T steel, and coke-stove gas also reaches 2-3 unit/T steel more.Under the background that iron and steel big industry slight diarrhea is even lost money, cost efficiency becomes the key link sought survival in iron and steel enterprise's adverse circumstance.
For the present situation of RH technique, the baking gun burner of RH vacuum tank baking system being carried out coal gas of converter transformation, has reached expection purpose, according to same baking curve, vacuum tank baking temperature is up to 1300oC, not only meets production, it is often more important that make use of company to have more than needed coal gas of converter, greatly reduces the consumption of natural gas, economic benefit and social benefit notable.
Summary of the invention
In view of this, the invention provides a kind of RH refining furnace coal gas of converter burner and RH refining furnace, by the burner of RH refining furnace is carried out coal gas of converter transformation, reached expection purpose, according to same baking curve, vacuum tank baking temperature is up to 1300oC, not only meets production, it is often more important that make use of company to have more than needed coal gas of converter, greatly reduces the consumption of natural gas, economic benefit and social benefit notable.
A kind of RH refining furnace coal gas of converter burner proposed according to the purpose of the present invention, described burner includes lighter layer, is set in turn in the peripheral coal gas of converter layer of described lighter layer, combustion oxygen layer and cooling water layer, and each interlayer is arranged for sealing；Described front end of burner is provided with burner head, and described burner head forms the oxygen spray orifice connected with described combustion oxygen layer；
Burner lights flame by lighter layer, and coal gas of converter layer mixes this burner backward supply with combustion oxygen layer, and front end of burner enters the vacuum tank of RH refining furnace and toasts, and peripheral cooling water layer carries out cooling process to burner.
Preferably, described burner internal layer and outer layer all use red copper material.
Preferably, it is provided with lighter and flame detector in described lighter layer.
Preferably, described flame detector connects controller, and coal gas of converter layer is provided with a valve, and described controller electrically connects with described valve, flame conditions detected according to flame detector, controls described valve break-make.
Preferably, described lighter layer and the coal gas of converter layer of periphery, combustion oxygen layer and cooling water layer common center line.
Preferably, described oxygen spray orifice circular array is distributed in burner head.
Preferably, the ejection end size of described oxygen spray orifice is more than its tip dimensions.
A kind of RH refining furnace, the hot-bending pipe including vacuum tank, being arranged at vacuum tank front end and baking gun, described baking gun includes that burner, described burner profile mate with the rifle hole shape of hot-bending pipe, and the gun body of baking gun enters vacuum tank by the rifle hole on hot-bending pipe.
The invention discloses a kind of RH refining furnace coal gas of converter burner, including lighter layer, being set in turn in the peripheral coal gas of converter layer of lighter layer, combustion oxygen layer and cooling water layer, front end of burner is provided with burner head, and burner head forms the oxygen spray orifice connected with combustion oxygen layer；By the burner of RH refining furnace is carried out coal gas of converter transformation, having reached expection purpose, according to same baking curve, vacuum tank baking temperature is up to 1300oC, not only meets production, it is often more important that make use of company to have more than needed coal gas of converter, greatly reduces the consumption of natural gas, economic benefit and social benefit notable.
According to baking curve requirement, nozzle is designed, to guarantee that coal gas of converter and oxygen mix are good under corresponding pressure and flow velocity, burn completely, reach intended cured effect.
Overcome existing nozzle with natural gas or coke-stove gas the present situation as medium, the baking field that coal gas of converter is medium can be met.
This nozzle arrangements is compact, existing automatic firing function flame detecting function again, point or safe and reliable.There is flame detector to detect during burning, once put out a fire and be automatically switched off coal gas of converter valve immediately, prevent gas leak.
And, combustion power of the present invention is big, and the life-span is long.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is RH refining furnace coal gas of converter burner cross-sectional end view.
Fig. 2 is RH refining furnace coal gas of converter burner end view drawing.
Numeral in figure or the title of the corresponding component representated by letter:
1, lighter layer 2, coal gas of converter layer 3, combustion oxygen layer 4, cooling water layer 5, burner head 6, oxygen spray orifice 41, cooling water intake tunnel 42, cooling water exhalant canal
Detailed description of the invention
Development along with steel industry, RH vacuum drying oven refine becomes steel industry excellent special steel product transformation and the first-selected technique of enterprise's increase profit, increasing iron and steel enterprise has selected RH furnace outer refining process, wherein the baking of the resistance to material of vacuum tank and dip pipe is the important step in RH technique, and the factory cost that decide RH controls.Using outsourcing natural gas or coke-stove gas baking the baking of the existing vacuum tank of China, relatively costly, wherein the direct medium cost of natural gas baking reaches 10 yuan/T steel, and coke-stove gas also reaches 2-3 unit/T steel more.Under the background that iron and steel big industry slight diarrhea is even lost money, cost efficiency becomes the key link sought survival in iron and steel enterprise's adverse circumstance.
The present invention is directed to the deficiencies in the prior art, provide a kind of RH refining furnace coal gas of converter burner and RH refining furnace, by the burner of RH refining furnace is carried out coal gas of converter transformation, reach expection purpose, according to same baking curve, vacuum tank baking temperature is up to 1300oC, not only meets production, it is often more important that make use of company to have more than needed coal gas of converter, greatly reduces the consumption of natural gas, economic benefit and social benefit notable.
By detailed description of the invention, technical scheme will be clearly and completely described below.Obviously, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Please also refer to Fig. 1 and Fig. 2, as shown in the figure, a kind of RH refining furnace coal gas of converter burner, this burner includes lighter layer 1, it is set in turn in the coal gas of converter layer 2 of lighter layer 1 periphery, combustion oxygen layer 3 and cooling water layer 4, the coal gas of converter layer of lighter layer and periphery thereof, combustion oxygen layer and cooling water layer common center line, each interlayer is welded seal.Owing to the calorific value ratio of coal gas of converter is relatively low, get a desired effect, each passage of this nozzle must redesign calculating, it is ensured that the throughput of coal gas of converter and oxygen meets baking requirement.
Front end of burner is provided with burner head 5, and burner head 5 forms the oxygen spray orifice 6 connected with combustion oxygen layer 3；According to baking curve requirement, nozzle is designed, to guarantee that coal gas of converter and oxygen mix are good under corresponding pressure and flow velocity, burn completely, reach intended cured effect.
Burner lights flame by lighter layer, and coal gas of converter layer mixes this burner backward supply with combustion oxygen layer, and front end of burner enters the vacuum tank of RH refining furnace and toasts, and peripheral cooling water layer carries out cooling process to burner.
Burner internal layer and outer layer all use red copper material.Add man-hour, through being rolled into blank, the most machined form.
Lighter and flame detector (not shown) it is provided with in lighter layer 1.Flame detector connects controller, and coal gas of converter layer is provided with a valve (not shown), and controller electrically connects with valve, flame conditions detected according to flame detector, controls described valve break-make.This apparatus structure is compact, existing automatic firing function flame detecting function again, point or safe and reliable.There is flame detector to detect during burning, once put out a fire and be automatically switched off coal gas of converter valve immediately, prevent gas leak.
Oxygen spray orifice circular array is distributed in burner head.The ejection end size of oxygen spray orifice is more than its tip dimensions, facilitates gas to eject.
In addition disclosed herein as well is a kind of RH refining furnace, the hot-bending pipe including vacuum tank, being arranged at vacuum tank front end and baking gun, baking gun includes that burner, burner profile mate with the rifle hole shape of hot-bending pipe, and the gun body of baking gun enters vacuum tank by the rifle hole on hot-bending pipe.
The invention discloses a kind of RH refining furnace coal gas of converter burner, including lighter layer, being set in turn in the peripheral coal gas of converter layer of lighter layer, combustion oxygen layer and cooling water layer, front end of burner is provided with burner head, and burner head forms the oxygen spray orifice connected with combustion oxygen layer；By the burner of RH refining furnace is carried out coal gas of converter transformation, having reached expection purpose, according to same baking curve, vacuum tank baking temperature is up to 1300oC, not only meets production, it is often more important that make use of company to have more than needed coal gas of converter, greatly reduces the consumption of natural gas, economic benefit and social benefit notable.
According to baking curve requirement, nozzle is designed, to guarantee that coal gas of converter and oxygen mix are good under corresponding pressure and flow velocity, burn completely, reach intended cured effect.
Overcome existing nozzle with natural gas or coke-stove gas the present situation as medium, the baking field that coal gas of converter is medium can be met.
This nozzle arrangements is compact, existing automatic firing function flame detecting function again, point or safe and reliable.There is flame detector to detect during burning, once put out a fire and be automatically switched off coal gas of converter valve immediately, prevent gas leak.
And, combustion power of the present invention is big, and the life-span is long.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.Multiple amendment to these embodiments will be apparent from for those skilled in the art, and generic principles defined herein can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (8)
1. a RH refining furnace coal gas of converter burner, it is characterised in that described burner includes lighter layer, is set in turn in the peripheral coal gas of converter layer of described lighter layer, combustion oxygen layer and cooling water layer, and each interlayer is arranged for sealing；Described front end of burner is provided with burner head, and described burner head forms the oxygen spray orifice connected with described combustion oxygen layer；
Burner lights flame by lighter layer, and coal gas of converter layer mixes this burner backward supply with combustion oxygen layer, and front end of burner enters the vacuum tank of RH refining furnace and toasts, and peripheral cooling water layer carries out cooling process to burner.
RH refining furnace coal gas of converter burner the most according to claim 1, it is characterised in that described burner internal layer and outer layer all use red copper material.
RH refining furnace coal gas of converter burner the most according to claim 1, it is characterised in that be provided with lighter and flame detector in described lighter layer.
RH refining furnace coal gas of converter burner the most according to claim 3, it is characterised in that described flame detector connects controller, a valve it is provided with on coal gas of converter layer, described controller electrically connects with described valve, flame conditions detected according to flame detector, controls described valve break-make.
RH refining furnace coal gas of converter burner the most according to claim 1, it is characterised in that described lighter layer and the coal gas of converter layer of periphery, combustion oxygen layer and cooling water layer common center line.
RH refining furnace coal gas of converter burner the most according to claim 1, it is characterised in that described oxygen spray orifice circular array is distributed in burner head.
RH refining furnace coal gas of converter burner the most according to claim 6, it is characterised in that the ejection end size of described oxygen spray orifice is more than its tip dimensions.
8. a RH refining furnace, the hot-bending pipe including vacuum tank, being arranged at vacuum tank front end and baking gun, it is characterized in that, described baking gun includes the burner described in any one of claim 1-7, described burner profile is mated with the rifle hole shape of hot-bending pipe, and the gun body of baking gun enters vacuum tank by the rifle hole on hot-bending pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610340291.8A CN105823045A (en) | 2016-05-23 | 2016-05-23 | Converter gas nozzle for RH refining furnace and RH refining furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610340291.8A CN105823045A (en) | 2016-05-23 | 2016-05-23 | Converter gas nozzle for RH refining furnace and RH refining furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105823045A true CN105823045A (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610340291.8A Pending CN105823045A (en) | 2016-05-23 | 2016-05-23 | Converter gas nozzle for RH refining furnace and RH refining furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN105823045A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099422A (en) * | 2018-09-20 | 2018-12-28 | 张家港市鑫州焊割机械有限公司 | Low combustion value furnace gas compound burner |
| CN114517247A (en) * | 2021-12-30 | 2022-05-20 | 泰州市德力西冶金机械设备有限公司 | Heat accumulating type RH vacuum chamber baking equipment |
| RU213773U1 (en) * | 2022-06-23 | 2022-09-28 | Открытое акционерное общество "Научно-исследовательский институт металлургической теплотехники" (ОАО "ВНИИМТ") | Device for burning natural gas and oxygen |
| CN115478133A (en) * | 2022-10-08 | 2022-12-16 | 首钢股份公司迁安钢铁公司 | RH baking device and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10152716A (en) * | 1996-11-25 | 1998-06-09 | Taihei Kogyo Co Ltd | Device for gas-cutting metal on furnace opening part in conveter |
| CN1274759A (en) * | 1999-05-21 | 2000-11-29 | 川崎制铁株式会社 | Composite spray gun for vacuum air-removing tank and its using method |
| CN1305536A (en) * | 1998-04-20 | 2001-07-25 | 金属技术股份有限公司 | Variably insertable combined lance with displacable burner and blower lance body |
| CN2890074Y (en) * | 2006-03-16 | 2007-04-18 | 上海宝钢工程技术有限公司 | Vacuum refining preheating gun for molten steel |
| CN2905813Y (en) * | 2006-03-09 | 2007-05-30 | 上海宝钢工程技术有限公司 | Multifunctional top-blowing gun for melt steel vacuum refining |
| CN203936371U (en) * | 2014-07-16 | 2014-11-12 | 张亚男 | Coal gas of converter heat accumulating type vacuum drying oven barbecue device |
-
2016
- 2016-05-23 CN CN201610340291.8A patent/CN105823045A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10152716A (en) * | 1996-11-25 | 1998-06-09 | Taihei Kogyo Co Ltd | Device for gas-cutting metal on furnace opening part in conveter |
| CN1305536A (en) * | 1998-04-20 | 2001-07-25 | 金属技术股份有限公司 | Variably insertable combined lance with displacable burner and blower lance body |
| CN1274759A (en) * | 1999-05-21 | 2000-11-29 | 川崎制铁株式会社 | Composite spray gun for vacuum air-removing tank and its using method |
| CN2905813Y (en) * | 2006-03-09 | 2007-05-30 | 上海宝钢工程技术有限公司 | Multifunctional top-blowing gun for melt steel vacuum refining |
| CN2890074Y (en) * | 2006-03-16 | 2007-04-18 | 上海宝钢工程技术有限公司 | Vacuum refining preheating gun for molten steel |
| CN203936371U (en) * | 2014-07-16 | 2014-11-12 | 张亚男 | Coal gas of converter heat accumulating type vacuum drying oven barbecue device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099422A (en) * | 2018-09-20 | 2018-12-28 | 张家港市鑫州焊割机械有限公司 | Low combustion value furnace gas compound burner |
| CN114517247A (en) * | 2021-12-30 | 2022-05-20 | 泰州市德力西冶金机械设备有限公司 | Heat accumulating type RH vacuum chamber baking equipment |
| RU213773U1 (en) * | 2022-06-23 | 2022-09-28 | Открытое акционерное общество "Научно-исследовательский институт металлургической теплотехники" (ОАО "ВНИИМТ") | Device for burning natural gas and oxygen |
| CN115478133A (en) * | 2022-10-08 | 2022-12-16 | 首钢股份公司迁安钢铁公司 | RH baking device and method |
| CN115478133B (en) * | 2022-10-08 | 2024-05-24 | 首钢股份公司迁安钢铁公司 | RH baking device and method |
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| PB01 | Publication | ||
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Application publication date: 20160803 |