CN109777912A - A kind of cluster fluidic oxygen gun and EBT electric arc furnaces - Google Patents
A kind of cluster fluidic oxygen gun and EBT electric arc furnaces Download PDFInfo
- Publication number
- CN109777912A CN109777912A CN201910155310.3A CN201910155310A CN109777912A CN 109777912 A CN109777912 A CN 109777912A CN 201910155310 A CN201910155310 A CN 201910155310A CN 109777912 A CN109777912 A CN 109777912A
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- CN
- China
- Prior art keywords
- oxygen
- ebt
- electric arc
- oxygen rifle
- arc furnaces
- 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
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 141
- 239000001301 oxygen Substances 0.000 title claims abstract description 141
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 141
- 238000010891 electric arc Methods 0.000 title claims abstract description 38
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000004593 Epoxy Substances 0.000 claims abstract description 30
- 239000003345 natural gas Substances 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 abstract description 5
- 238000003723 Smelting Methods 0.000 abstract description 4
- 239000002893 slag Substances 0.000 abstract description 4
- 238000005262 decarbonization Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000035515 penetration Effects 0.000 abstract description 3
- 238000003756 stirring Methods 0.000 abstract description 3
- 238000005496 tempering Methods 0.000 abstract description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract description 2
- 235000011941 Tilia x europaea Nutrition 0.000 abstract description 2
- 239000004615 ingredient Substances 0.000 abstract description 2
- 239000004571 lime Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000000155 melt Substances 0.000 abstract description 2
- 238000010079 rubber tapping Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003447 ipsilateral effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- 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]
-
- 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
- Y02P10/20—Recycling
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention discloses a kind of cluster fluidic oxygen gun and EBT electric arc furnaces, the oxygen rifle surrounds main oxygen hole by setting epoxy stomata, and natural gas stomata is effectively promoted boundling effect around outside the ring of encirclement of epoxy stomata, so that oxygen jet is easier to penetrate the top of the slag and enter molten steel, promotes decarbonization rate.The EBT electric arc furnaces takes into account furnace bottom and the region EBT by three above-mentioned oxygen rifles of setting, jet direction, on the one hand improves oxygen jet to the penetration depth and stirring intensity in molten bath, liquid steel temperature, ingredient in uniform furnace；On the other hand the region EBT is covered, melts smelting cold steel and fast melt feeding lime, made high alkalinity foamed slag in advance, stablized electric arc and create dephosphorization condition simultaneously.Three oxygen rifles are respectively mounted in water-cooled plate, and the high jet intensity in position is larger, are effectively reduced the accidents such as oxygen reflection tempering, are realized efficient stable yields.According to situation is smelted, various complicated burden structures are adapted to by adjusting separately flow, oxygen, gas consumption is effectively reduced.
Description
Technical field
The invention belongs to field of metallurgical equipment, and in particular to a kind of cluster fluidic oxygen gun and the EBT electricity with the oxygen rifle
Arc furnace.
Background technique
EBT electric arc furnaces full name is eccentric bottom tapping electric arc furnaces, and structure is that the lander of traditional electric furnace is changed to steel box,
Tapping hole steel box bottom vertically downward.Tapping hole lower part is equipped with tapping hole switching mechanism, is opened and closed tapping hole, steel box top
Center is equipped with operation port, so as to the filler operation and maintenance of tapping hole.In general, the tapping hole region of EBT electric arc furnaces is referred to as EBT
Region.
Cluster fluidic (CoherentJet) oxygen rifle technology is a kind of novel blowing oxygen technology to come out at the end of the 20th century,
Cluster fluidic is compared with conventional fluidic, and jet stream is more concentrated, speed and impact force are bigger, is able to solve the injection of traditional supersonic oxygen rifle
Apart from the disadvantage that short, impact force is small, oxygen utilization rate is low.Its big envelope for mainly utilizing agent burns to be formed protection main oxygen
Stream.The exit Mach number of cluster fluidic oxygen gun can achieve 2.0 or so, and the jet stream of boundling state can not be sent out in longer distance
It dissipates, keeps cohesion shape, distance can reach 1.2~2.1m, can be directly mounted at furnace wall, realize the functions such as fluxing decarburization.
However, coherent oxygen lance is slow in the presence of heating decarbonization rate at present, acts on unobvious, gun platform leakage accident to the region EBT
Frequently, the disadvantages such as utilization rate is low.
Summary of the invention
Goal of the invention: in order to overcome the drawbacks of the prior art, the present invention provides a kind of cluster fluidic oxygen gun, which can
Flow is adjusted according to situation is smelted, improves utilization efficiency.
It is a further object of the present invention to provide a kind of EBT electric arc furnaces with above-mentioned cluster fluidic oxygen gun.
Technical solution: a kind of cluster fluidic oxygen gun of the present invention, including pipette tips, the pipette tips have main oxygen hole,
The natural gas stomata of multiple epoxy stomatas and quantity identical as epoxy stomata；The main oxygen hole is located among pipette tips, multiple
Epoxy stomata uniformly arrange formation one circle and around the periphery in main oxygen hole, the natural gas stomata uniformly arrange formation one enclose
And it arranges outside the circle to be formed around epoxy stomata；The circle of two epoxy stomatas adjacent thereto is arranged in each natural gas stomata
On the perpendicular bisector of heart connecting line.
Wherein, the epoxy stomata and the natural gas stomata have 12.
The aperture in the main oxygen hole is 36.2-37.5mm, and the aperture of the epoxy stomata is 7.5-8.5mm, the day
The aperture of right gas stomata is 6.0-7.0mm.
And technical solution used by a kind of EBT electric arc furnaces with above-mentioned cluster fluidic oxygen gun of the present invention is:
The EBT electric arc furnaces includes furnace body, and the furnace body has furnace bottom, furnace wall, fire door and the EBT region opposite with fire door；The furnace
Wall has the first water-cooled plate positioned at EBT overlying regions, and the two sides of first water-cooled plate are provided with successively arranges from the near to the remote
The second water-cooled plate, third water-cooled plate and the 4th water-cooled plate of cloth, two the second water-cooled plates, two third water-cooled plates, two
Four water-cooled plates are symmetrical respectively about the plane of symmetry extended from the region EBT to fire door；There are three the cluster fluidic oxygen guns, respectively
First oxygen rifle, the second oxygen rifle and third oxygen rifle, first oxygen rifle are arranged in third water-cooled plate, the second oxygen rifle setting
In fourth water-cooled plate ipsilateral with the first oxygen rifle, the third oxygen rifle is arranged in the third water-cooled plate of the other side；First oxygen
The jet direction of rifle is directed toward obliquely between hearth center and the region EBT, and the jet direction of the second oxygen rifle and third oxygen rifle is oblique
Vertical lines where downwardly directed hearth center.
Wherein, the jet direction of first oxygen rifle, the second oxygen rifle and third oxygen rifle forms 47-48 ° with horizontal plane
Angle.
Vertical lines where the jet direction from hearth center of first oxygen rifle deviate 14-15 ° to the region EBT.
The molten steel face 800-900mm of the pipette tips centre distance of first oxygen rifle electric arc furnaces, second oxygen rifle and
The pipette tips center of three oxygen rifles 700-800mm away from the molten steel face of electric arc furnaces.
The main oxygen maximum stream flow of first oxygen rifle is 3200Nm3/ h, the main oxygen maximum stream flow of the second oxygen rifle are 3100Nm3/
H, the main oxygen maximum stream flow of third oxygen rifle are 3000Nm3/h。
The epoxy maximum stream flow of three cluster fluidic oxygen guns is 400Nm3/ h, natural gas maximum stream flow are
200Nm3/h。
The utility model has the advantages that the cluster fluidic oxygen gun surrounds main oxygen hole by setting epoxy stomata, and natural gas stomata is enclosed
It is around in outside the ring of encirclement of epoxy stomata, effectively promotes boundling effect, so that oxygen jet is easier to penetrate the top of the slag and is entered molten steel, significantly
Promote decarbonization rate.The EBT electric arc furnaces is by being arranged three cluster fluidic oxygen guns, and the jet stream side of three cluster fluidic oxygen guns
To hearth center and the region EBT is taken into account, oxygen jet is on the one hand improved to the penetration depth and stirring intensity in furnace bottom molten bath,
Liquid steel temperature, ingredient in even furnace；On the other hand the region EBT is covered, melts smelting cold steel, and fast melt feeding lime, mentions
Before made high alkalinity foamed slag, stablize electric arc and create dephosphorization condition simultaneously.Three oxygen rifles are installed in the water-cooled plate of furnace wall, peace
Holding position is high, and jet intensity is larger, effectively reduces the water coolings part leakage accidents such as oxygen reflection tempering, realizes efficient stable yields.According to
Situation is smelted, by adjusting separately flow, various complicated burden structures is can adapt to, oxygen, gas consumption is effectively reduced, saves
About cost.
Detailed description of the invention
Fig. 1 is the pipette tips structural schematic diagram of cluster fluidic oxygen gun of the present invention；
Fig. 2 is the overlooking structure diagram of EBT electric arc furnaces of the present invention；
Fig. 3 is the schematic cross-sectional view of EBT electric arc furnaces of the present invention.
Specific embodiment
In the following, being described in further details in conjunction with attached drawing to the present invention.
As shown in Figure 1, the oxygen rifle is applied to disclosed in the present embodiment present embodiment discloses a kind of cluster fluidic oxygen gun 1
A kind of 100tEBT electric arc furnaces.
Specifically, the cluster fluidic oxygen gun includes pipette tips 10, in order to strengthen the boundling effect of oxygen rifle, which has master
The natural gas stomata 13 of oxygen outlet 11, multiple epoxy stomatas 12 and quantity identical as epoxy stomata 12.Epoxy stomata 12 and day
The quantity of right gas stomata 13 needs to be arranged according to electric arc furnaces tonnage, in the present embodiment, the number of epoxy stomata 12 and natural stomata 13
Amount preferably 12.Main oxygen hole 11 is located among pipette tips 10,12 epoxy stomatas 12 uniformly arrangement formed a circle and around
The periphery in main oxygen hole 11.The circle that uniformly arrangement forms a circle and formed around the arrangement of epoxy stomata 12 of natural gas stomata 13
Outside, and on the perpendicular bisector of each natural gas stomata 13 center of circle connecting line that two epoxy stomatas 12 adjacent thereto are set, shape
At dislocation.
Tonnage according to application EBT electric arc furnaces is different, and the aperture in main oxygen hole 11 selects in 36.2-37.5mm, epoxy
The aperture of stomata 12 selects in 7.5-8.5mm, and the aperture of natural gas stomata 13 selects in 6.0-7.0mm.And correspond to this
The 100tEBT electric arc furnaces of embodiment, the aperture in main oxygen hole 11 are preferably 36.8mm, and the aperture of epoxy stomata is preferably 8.0mm,
The aperture of natural gas stomata is preferably 6.5mm.
As shown in Figure 2 and Figure 3,100tEBT electric arc furnaces described in the present embodiment, furnace body have furnace bottom 2, furnace wall 3, fire door 4
And the EBT region 5 opposite with fire door 4.The furnace wall 3 has 31, two the second water-cooled plates of the first water-cooled plate, 32, two third water
Cold plate 33 and two the 4th water-cooled plates 34.First water-cooled plate 31 is located at the top in the region EBT 5, two the second water-cooled plate 32 difference
Positioned at the two sides of the first water-cooled plate 31, then, two the second water-cooled plates are sequentially connected one piece of third water-cooled plate 33 and one piece respectively
4th water-cooled plate 34, that is to say, that the two sides of the first water-cooled plate 31 are provided with the second water-cooled plate successively arranged from the near to the remote
32, third water-cooled plate 33 and the 4th water-cooled plate 34.Also, two the second water-cooled plates, 32, two third water-cooled plates 33, two
Four water-cooled plates 34 are symmetrical respectively about the plane of symmetry extended from the region EBT 5 to fire door 4.
EBT electric arc furnaces routine is provided with main oxygen rifle, and referring to Fig. 2, the jet-core region line of main oxygen rifle is furnace
It is directed toward the phantom line segments at 2 center of furnace bottom in 4 sides of door.Meanwhile there are three cluster fluidic oxygen guns 1 for installation in the EBT electric arc furnaces, respectively
First oxygen rifle 1a, the second oxygen rifle 1b and third oxygen rifle 1c.First oxygen rifle 1a is arranged in the third water-cooled plate 33 of side,
Second oxygen rifle 1b is arranged in the 4th water-cooled plate 34 ipsilateral with the first oxygen rifle 1a, and the of the other side is arranged in third oxygen rifle 1c
In three water-cooled plates 33.
Oxygen jet is improved to the penetration depth and stirring intensity in furnace bottom molten bath in hearth center and the region EBT in order to balance
While the region EBT is covered.The jet direction of first oxygen rifle 1a be directed toward obliquely 2 center of furnace bottom and the region EBT 5 it
Between, the jet direction of the second oxygen rifle 1b and third oxygen rifle 1c are directed toward the vertical lines where 2 center of furnace bottom obliquely.
Preferably, the jet direction of the first oxygen rifle 1a, the second oxygen rifle 1b and third oxygen rifle 1c are formed with horizontal plane
47-48 ° of the angle that has a down dip.And the jet direction of the first oxygen rifle 1a is also from the vertical lines where 2 center of furnace bottom to the region EBT 5
14-15 ° of offset.Further, in the present embodiment, the first oxygen rifle 1a optimized migration angle is 15 °.
Referring to such as Fig. 3, indicate the first oxygen rifle 1a and the second oxygen rifle 1b in another side with dashed circle in figure
Projection.Wherein, the height H in the molten steel face of the pipette tips centre distance of the first oxygen rifle 1a electric arc furnaces is 800-900mm.Second oxygen rifle
The height h in the molten steel face of the pipette tips centre distance electric arc furnaces of 1b and third oxygen rifle 1c is 700-800mm.Ensure three cluster fluidics
The installation site with higher of oxygen rifle 1 can effectively reduce the water such as oxygen reflection tempering in conjunction with the feature that its jet intensity is larger
Cold part leakage accident, realizes efficient stable yields.
The 100tEBT electric arc furnaces mainly uses steel scrap+hot metal charge process route to be smelted, the flow of three oxygen rifles
It needs to be adjusted separately according to smelting situation.Specifically, the main oxygen maximum stream flow of the first oxygen rifle 1a is 3200Nm3/ h, second
The main oxygen maximum stream flow of oxygen rifle 1b is 3100Nm3The main oxygen maximum stream flow of/h, third oxygen rifle 1c are 3000Nm3/h.Also, three
The epoxy maximum stream flow of cluster fluidic oxygen gun (1) is 400Nm3/ h, natural gas maximum stream flow are 200Nm3/h.It was smelting
Cheng Zhong is adjusted flow operation according to situation is smelted in the adjustable extent of each oxygen rifle, can adapt to various complicated furnace charge knots
Structure, while reducing oxygen, gas consumption, save the cost.
Claims (10)
1. a kind of cluster fluidic oxygen gun, which is characterized in that including pipette tips (10), the pipette tips (10) have main oxygen hole (11),
The natural gas stomata (13) of multiple epoxy stomatas (12) and quantity identical as epoxy stomata (12)；Main oxygen hole (11) position
Intermediate in pipette tips (10), uniformly arrangement forms a circle and around the periphery of main oxygen hole (11), institute multiple epoxy stomatas (12)
Stating natural gas stomata (13), uniformly arrangement forms a circle and arranges outside the circle formed around epoxy stomata (12)；Each natural gas
Stomata (13) is arranged on the perpendicular bisector of the center of circle connecting line of two epoxy stomatas (12) adjacent thereto.
2. cluster fluidic oxygen gun according to claim 1, which is characterized in that the epoxy stomata (12) and the natural gas
Stomata (13) has 12.
3. cluster fluidic oxygen gun according to claim 2, which is characterized in that the aperture of the main oxygen hole (11) is
36.2-37.5mm, the aperture of the epoxy stomata (12) are 7.5-8.5mm, and the aperture of the natural gas stomata (13) is 6.0-
7.0mm。
4. a kind of EBT electric arc furnaces with any one of 1-3 cluster fluidic oxygen gun, which is characterized in that including furnace body, the furnace
Body has furnace bottom (2), furnace wall (3), fire door (4) and the EBT region (5) opposite with fire door (4)；The furnace wall (3) has position
The two sides of the first water-cooled plate (31) above the region EBT (5), first water-cooled plate (31) are provided with from the near to the remote successively
The second water-cooled plate (32), third water-cooled plate (33) and the 4th water-cooled plate (34) of arrangement, two the second water-cooled plates (32), two
Third water-cooled plate (33), two the 4th water-cooled plates (34) are respectively about the plane of symmetry pair extended from the region EBT (5) to fire door (4)
Claim；There are three the cluster fluidic oxygen guns (1), respectively the first oxygen rifle (1a), the second oxygen rifle (1b) and third oxygen rifle (1c),
First oxygen rifle (1a) is arranged on third water-cooled plate (33), and the second oxygen rifle (1b) setting is same with the first oxygen rifle (1a)
In 4th water-cooled plate (34) of side, the third oxygen rifle (1c) is arranged in the third water-cooled plate (33) of the other side；First oxygen rifle
The jet direction of (1a) is directed toward obliquely between furnace bottom (2) center and the region EBT (5), the second oxygen rifle (1b) and third oxygen rifle
The jet direction of (1c) is directed toward the vertical lines where furnace bottom (2) center obliquely.
5. EBT electric arc furnaces according to claim 4, which is characterized in that first oxygen rifle (1a), the second oxygen rifle (1b) with
And the jet direction of third oxygen rifle (1c) forms 47-48 ° of angle with horizontal plane.
6. EBT electric arc furnaces according to claim 5, which is characterized in that the jet direction of first oxygen rifle (1a) is from furnace
Vertical lines where bottom (2) center deviate 14-15 ° to the region EBT (5).
7. EBT electric arc furnaces according to claim 4, which is characterized in that the pipette tips centre distance of first oxygen rifle (1a)
The molten steel face 800-900mm of the electric arc furnaces, the pipette tips centre distance electric arc furnaces of second oxygen rifle (1b) and third oxygen rifle (1c)
Molten steel face 700-800mm.
8. EBT electric arc furnaces according to claim 4, which is characterized in that the main oxygen maximum stream flow of first oxygen rifle (1a)
For 3200Nm3/ h, the main oxygen maximum stream flow of the second oxygen rifle (1b) are 3100Nm3The main oxygen maximum stream flow of/h, third oxygen rifle (1c) is
3000Nm3/h。
9. EBT electric arc furnaces according to claim 8, which is characterized in that the epoxy of three cluster fluidic oxygen guns (1) is most
Big flow is 400Nm3/ h, natural gas maximum stream flow are 200Nm3/h。
10. according to the described in any item EBT electric arc furnaces of claim 4-9, which is characterized in that the EBT electric arc furnaces is 100tEBT
Electric arc furnaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910155310.3A CN109777912A (en) | 2019-02-28 | 2019-02-28 | A kind of cluster fluidic oxygen gun and EBT electric arc furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910155310.3A CN109777912A (en) | 2019-02-28 | 2019-02-28 | A kind of cluster fluidic oxygen gun and EBT electric arc furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109777912A true CN109777912A (en) | 2019-05-21 |
Family
ID=66486874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910155310.3A Pending CN109777912A (en) | 2019-02-28 | 2019-02-28 | A kind of cluster fluidic oxygen gun and EBT electric arc furnaces |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2518869Y (en) * | 2002-02-01 | 2002-10-30 | 北京科技大学 | Beam jet oxygen gun for steelmaking |
| CN101709352A (en) * | 2009-12-10 | 2010-05-19 | 南京钢铁股份有限公司 | Method for preventing water leakage of base of coherent oxygen lance of electric furnace and water cooling plate under base |
| CN102634635A (en) * | 2012-05-16 | 2012-08-15 | 中天钢铁集团有限公司 | Energy-saving electric furnace |
| CN202380031U (en) * | 2011-12-27 | 2012-08-15 | 无锡东雄重型电炉有限公司 | Coherent oxygen lance structure for electric arc furnaces |
| CN209741216U (en) * | 2019-02-28 | 2019-12-06 | 南京钢铁股份有限公司 | Coherent jet oxygen lance and EBT electric arc furnace |
-
2019
- 2019-02-28 CN CN201910155310.3A patent/CN109777912A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2518869Y (en) * | 2002-02-01 | 2002-10-30 | 北京科技大学 | Beam jet oxygen gun for steelmaking |
| CN101709352A (en) * | 2009-12-10 | 2010-05-19 | 南京钢铁股份有限公司 | Method for preventing water leakage of base of coherent oxygen lance of electric furnace and water cooling plate under base |
| CN202380031U (en) * | 2011-12-27 | 2012-08-15 | 无锡东雄重型电炉有限公司 | Coherent oxygen lance structure for electric arc furnaces |
| CN102634635A (en) * | 2012-05-16 | 2012-08-15 | 中天钢铁集团有限公司 | Energy-saving electric furnace |
| CN209741216U (en) * | 2019-02-28 | 2019-12-06 | 南京钢铁股份有限公司 | Coherent jet oxygen lance and EBT electric arc furnace |
Non-Patent Citations (1)
| Title |
|---|
| 本书编辑委员会编著: ""钢铁工业节能减排新技术5000问"", 30 April 2018, 北京：中国科学技术出版社, pages: 192 - 85 * |
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