CN2362087Y - Composite sray gun for electric stove - Google Patents
Composite sray gun for electric stove Download PDFInfo
- Publication number
- CN2362087Y CN2362087Y CN 98250074 CN98250074U CN2362087Y CN 2362087 Y CN2362087 Y CN 2362087Y CN 98250074 CN98250074 CN 98250074 CN 98250074 U CN98250074 U CN 98250074U CN 2362087 Y CN2362087 Y CN 2362087Y
- Authority
- CN
- China
- Prior art keywords
- hole
- spray
- carbon powder
- axis
- orifice
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model discloses a composite spray gun for electric stoves, and relates to an auxiliary steel-smelting device for various alternative current and direct current arc stoves for the steel industry. The utility model is composed of a spray head and a gun pipe. The utility model is characterized in that the spray head is provided with a main oxygen spray hole, auxiliary oxygen spray holes, a carbon powder hole and a combustion supporting hole, wherein, the number of the main oxygen spray hole is one, the main oxygen spray hole is positioned under the spray head, the number of the auxiliary oxygen spray hole is two, the auxiliary oxygen spray holes are positioned on both sides above the spray head, the number of the carbon powder hole is one, the carbon powder hole is positioned on the vicinity of the center of the spray head, and the combustion supporting hole is composed of a circular hole which is sheathed on the outer circle of the carbon powder hole or 4-12 small circular holes which are surrounded on the periphery of the carbon powder hole. The utility model solves the problem that the stove doors of the middle and small electric stoves are narrow. The utility model uses one spray gun to complete oxygen spray, combustion support, and carbon spray operations.
Description
The utility model is the auxiliary smelting equipment of various AC and DC electric arc furnaces in the steel industry.It can in time be sent into oxygen, carbon dust and the heat energy of fluxing in the stove according to the smelting process requirement, in order to strengthen electric furnace smelting.
The most of rifle head that uses both at home and abroad is single spray orifice or increases a tap hole again on single spray orifice at present, and state-of-the-art also is to be combined by two spray orifices or three spray orifices.For example the carbon oxygen lance shower nozzle of German Danieli Off Mecc of the German FUCHS company of Zhangjiagang Sha Gang group introduction and the introduction of Nanjing steel mill is made up of single spray orifice, so its spray gun is a combination spray gun, promptly is made up of many spray guns.It only is applicable to that large-scale electric furnace uses, and then is difficult to be suitable for based on the steel mill of middle-size and small-size electric furnace (below the 30T) in China.Because the fire door of large-scale electric furnace is more roomy, it can hold two or three spray gun simultaneously, and middle electric rangette is then not all right.The electric furnace of the U.S. also is made up of two spray orifices with carbon oxygen lance, but its function is also just sprayed oxygen and combustion-supporting, its spray carbon dust also needs an other spray gun to bear, the carbon oxygen lance of domestic University of Science ﹠ Technology, Beijing development equally also is made up of two spray orifices, its function also is a spray oxygen and combustion-supporting, and the spray carbon dust also needs an other spray gun to finish.At least need two spray guns before every electric furnace of all these spray gun structures both at home and abroad at present in sum, correspondingly send rifle equipment huge.For this reason, need a kind of not only processing performance of exploitation to be better than other type, and can simplify the spray gun that send rifle equipment greatly.
The purpose of this utility model is to provide a kind of electric furnace compound spray gun, use it, the narrow and small problem of electric rangette fire door in can not only solving well, and then simplify casthouse equipment greatly, and can realize using a spray gun oxygen, carbon dust, help right heat energy to be transported to as required in the stove, to shorten the heat.
Based on the foregoing invention purpose, the compound spray gun of the utility model, form by shower nozzle, gun barrel, characteristics are that design has main oxygen jet orifice, assistant oxygen jet orifice, carbon powder orifice and combustion-supporting hole on the described shower nozzle: wherein main oxygen jet orifice is the below that duct, a garden is positioned at shower nozzle, the end of main oxygen jet orifice is the Lavalle aditus laryngis, the diameter of Lavalle aditus laryngis is φ 16-25mm, the axis of Lavalle aditus laryngis and shower nozzle axis θ in an acute angle, θ=30 °-75 ° °, assistant oxygen jet orifice is the duct, garden of two φ=10-20mm, its axis and nozzle axis line parallel lay respectively at both sides, shower nozzle top; Carbon powder orifice is the duct, garden of a φ=20-50mm, its axis and nozzle axis line parallel and be positioned near the axis of shower nozzle; Combustion-supporting hole is 4-12 the small garden hole road of φ=8-20mm, and these small garden holes evenly distribute its axis and nozzle axis line parallel around carbon powder orifice; Combustion-supporting hole can also be the annulus that is enclosed within the carbon powder orifice outer ring, its Kong Kuanwei 8-12mm.
Compared with prior art, advantage is:
The compound spray gun of the utility model combines domestic actual conditions well, solved the narrow and small problem of middle electric rangette fire door, when strengthening smelting, only use a spray gun, can be transported to oxygen, carbon dust, combustion-supporting heat energy in the stove as required, to shorten the heat, simultaneously simplified the spray gun feed arrangement greatly, reduced by a combustion-supporting equipment and easily realized the control automation.
During work, the carbon powder orifice axis is parallel with the molten steel face, carbon dust can be layered on the molten steel surface equably by this hole, form stable foamed slag, improve the thermal efficiency, the main oxygen jet orifice axis is positioned at molten steel face below, and the Lavalle aditus laryngis becomes 30 °-75 ° acute angle with the molten steel face, when having oxygen with certain pressure and pass through Lavalle aditus laryngis in the main oxygen jet orifice, expansion rapidly, make oxygen outlet speed meet or exceed supersonic speed, enter molten steel, use oxygen to satisfy to smelt along the main oxygen jet orifice axis, assistant oxygen jet orifice is positioned at the top of molten steel face, the reducibility gas mixed combustion that produces during with smelting molten steel increases heat energy, reduces power consumption.The combustion-supporting flame of combustion-supporting hole ejection.In earlier stage substituting the fire door rifle of fluxing in melting, carry out the steel scrap cutting, clears the path for the rifle body enters in the stove in cleaning fire door district.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the utility model shower nozzle front sectional structure schematic diagram.
Fig. 2 is the right view of shower nozzle.
Fig. 3 be among Fig. 2 A-A to cutaway view.
Among Fig. 1, Fig. 2, Fig. 3,1 is shower nozzle, and 2 is main oxygen jet orifice, and 3 is the Lavalle aditus laryngis, and 4 is carbon powder orifice, and 5 is assistant oxygen jet orifice, and 6 is combustion-supporting hole, and θ is the angle of Lavalle aditus laryngis and shower nozzle axis.
Claims (1)
1, the compound spray gun of a kind of electric furnace, form by shower nozzle, gun barrel, it is characterized in that: design has main oxygen jet orifice, assistant oxygen jet orifice, carbon powder orifice and combustion-supporting hole on the described shower nozzle: wherein main oxygen jet orifice is duct, a garden, be positioned at the below of shower nozzle, the end of main oxygen jet orifice is the Lavalle aditus laryngis, the diameter of Lavalle aditus laryngis is φ 16-25mm, the axis of Lavalle aditus laryngis and shower nozzle axis θ in an acute angle, θ=30 °-75 °; Assistant oxygen jet orifice is the duct, garden of two φ=10-20mm, and its axis and nozzle axis line parallel lay respectively at both sides, shower nozzle top; Carbon powder orifice is the duct, garden of a φ=20-50mm, its axis and nozzle axis line parallel and be positioned near the axis of shower nozzle; Combustion-supporting hole is 4-12 the small garden hole road of φ=8-20mm, and these small garden holes evenly distribute its axis and nozzle axis line parallel around carbon powder orifice; Combustion-supporting hole can also be the annulus that is enclosed within the carbon powder orifice outer ring, its Kong Kuanwei 8-12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98250074 CN2362087Y (en) | 1998-12-17 | 1998-12-17 | Composite sray gun for electric stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98250074 CN2362087Y (en) | 1998-12-17 | 1998-12-17 | Composite sray gun for electric stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2362087Y true CN2362087Y (en) | 2000-02-02 |
Family
ID=33994657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98250074 Expired - Fee Related CN2362087Y (en) | 1998-12-17 | 1998-12-17 | Composite sray gun for electric stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2362087Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412488C (en) * | 2002-03-11 | 2008-08-20 | 中国科学院过程工程研究所 | Oxygen carbon gun composite spray jet head for electric arc steel-smelting furnace |
| CN102191352A (en) * | 2010-03-12 | 2011-09-21 | 苏州宝联重工股份有限公司 | Coherent jet lance |
-
1998
- 1998-12-17 CN CN 98250074 patent/CN2362087Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412488C (en) * | 2002-03-11 | 2008-08-20 | 中国科学院过程工程研究所 | Oxygen carbon gun composite spray jet head for electric arc steel-smelting furnace |
| CN102191352A (en) * | 2010-03-12 | 2011-09-21 | 苏州宝联重工股份有限公司 | Coherent jet lance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4077614A (en) | Steelmaking apparatus | |
| CN109628689A (en) | High hot metal ratio electric furnace method for supplying oxygen | |
| CN2362087Y (en) | Composite sray gun for electric stove | |
| CN105950824A (en) | Electric arc furnace steelmaking process with oxygen, fuel and powder common injection | |
| CN201293319Y (en) | Flame adjustable single thermal storage burner | |
| CN102191352A (en) | Coherent jet lance | |
| CN111748673A (en) | Multifunctional oxyhydrogen burner for electric arc furnace steelmaking and energy supply control method | |
| CN212476807U (en) | Smoldering furnace spray gun for smelting reduction furnace | |
| CN202166054U (en) | Oxygen-rich combustor | |
| CN201476584U (en) | Carbon-oxygen spray gun for electric furnace steel making | |
| US4168968A (en) | Steelmaking process | |
| CN2245064Y (en) | Oxygen-gas spray gun for producing iron and steel | |
| CN105486091A (en) | Oxygen lance for smelting of molten pool | |
| CN201463594U (en) | Combined spray gun used for iron making by smelting reduction | |
| CN1038430C (en) | Blast furnace coal powder jet quick-burning method and equipment | |
| CN216786172U (en) | Composite fuel spray gun for iron making | |
| CN2191864Y (en) | Spray gun for jetting coal powder in blast furnace | |
| CN212481272U (en) | Burner with a burner head | |
| CN1200118C (en) | Oxygen blasting powder spraying melting asistance technology for electric furnace steelmaking and making foam slag technology thereof | |
| CN210856200U (en) | Composite coherent oxygen lance | |
| CN201459166U (en) | Air intake belly pipe for blast furnace | |
| CN2409419Y (en) | Double-runner composite spray gun for electric furnace | |
| CN107326144B (en) | Two-section type single-channel melting bath smelting oxygen lance | |
| CN203007309U (en) | Multifunctional furnace wall cluster oxygen lance | |
| CN201634712U (en) | Beam concentration jet-flow gun |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |