CN108680004A - A kind of electric arc furnaces - Google Patents
A kind of electric arc furnaces Download PDFInfo
- Publication number
- CN108680004A CN108680004A CN201810730383.6A CN201810730383A CN108680004A CN 108680004 A CN108680004 A CN 108680004A CN 201810730383 A CN201810730383 A CN 201810730383A CN 108680004 A CN108680004 A CN 108680004A
- Authority
- CN
- China
- Prior art keywords
- electrode
- secondary enclosure
- electric arc
- arc furnaces
- furnace cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010891 electric arc Methods 0.000 title claims abstract description 30
- 238000004140 cleaning Methods 0.000 claims description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 230000008450 motivation Effects 0.000 claims description 2
- 239000000779 smoke Substances 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 9
- 239000003546 flue gas Substances 0.000 abstract description 9
- 238000003723 Smelting Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000009628 steelmaking Methods 0.000 abstract description 3
- 238000009792 diffusion process Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 241001484259 Lacuna Species 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- 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
- F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces heated electrically, with or without any other source of heat
- F27B3/085—Arc furnaces
-
- 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
-
- 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
- F27B3/28—Arrangement of controlling, monitoring, alarm or the like devices
-
- 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
Abstract
The invention discloses a kind of electric arc furnaces, including secondary enclosure (3), electrode (4), electrode small furnace cover (5), arc furnace cover (8) and burner hearth, secondary enclosure (3) is located at outside the burner hearth, electrode (4), electrode small furnace cover (5) and arc furnace cover (8) are arranged successively from inside to outside, secondary enclosure (3) is cylindrical in shape structure, one end of secondary enclosure (3) is equipped with entrance (31) and electrode installing port (32), the other end of secondary enclosure (3) is equipped with outlet (33), the entrance (31) of secondary enclosure (3) is sheathed on small furnace cover (5) outside, electrode (4) passes through the electrode installing port (32) of secondary enclosure (3).Realize prevents that air is entered from the electrode hole on furnace lid in stove outside stove and inner flue gas of the stove is from electrode hole to external diffusion in EAF Steelmaking Process, does not influence being freely lifted for electrode in smelting process while to reach closed electrode hole.
Description
Technical field
The present invention relates to smelting equipment field, a kind of particularly electric arc furnaces.
Background technology
Currently, there are gap between furnace lid electrode hole and electrode in EAF Steelmaking Process, do so main
Be for convenience high temperature electrode in complicated fusing smelting process can fast free lifting, to ensure the stabilization and height of electric arc
Effect production.But the presence of electrode interporal lacuna can cause the flue gas in stove excessive can enter in stove to the air outside stove or outside stove.Stove
Interior flue gas is excessive to cause furnace heat to lose and smelt the pollution of post environment.The outer air of stove enters in stove, is bringing 21% into
Oxygen while also brought a large amount of nitrogen and other inert gases into, oxygen enters in stove the oxidation that can increase electrode and disappears
Consumption, other gases in addition to oxygen, which enter, can then increase dust pelletizing system operating load in electric furnace, nitrogen enter in stove after
It is cracked under high-temperature electric arc, so this smelting process can cause molten steel nitrogen pick-up, reduces Molten Steel Cleanliness.
Invention content
In order to which the air solved the problems, such as outside stove can enter in stove.The present invention provides a kind of electric arc furnaces, the electric arc furnaces energy
It is enough to solve to prevent air or furnace gas from freeing in and out electrode hole while fast free during electric furnace high-temperature Electrode lifts.
Technological invention used by the present invention solves its technical problem is：A kind of electric arc furnaces, including secondary enclosure, electricity
Pole, electrode small furnace cover, arc furnace cover and burner hearth, secondary enclosure are located at outside the burner hearth, electrode, electrode small furnace cover and electric arc
Stove bell is arranged successively from inside to outside, and secondary enclosure is cylindrical in shape structure, and one end of secondary enclosure is equipped with entrance and electrode is pacified
Mouth is filled, the other end of secondary enclosure is equipped with outlet, and the entrance of secondary enclosure is sheathed on outside electrode small furnace cover, and electrode passes through two
The electrode installing port of secondary enclosure.
The electric arc furnaces also contains workshop secondary cleaning shaft, and the outlet of secondary enclosure can be with workshop secondary cleaning shaft
Entrance be correspondingly connected with.
The entrance of workshop secondary cleaning shaft is connected with driving mechanism, which can make workshop secondary cleaning shaft
Entrance can be closer or far from the outlet of secondary enclosure.
Measured oxygen concentration instrument is equipped in secondary enclosure, the measured oxygen concentration instrument is interlocked with driving mechanism.
Secondary enclosure is horizontal, and the outlet of secondary enclosure and the entrance of workshop secondary cleaning shaft are equipped with method
Orchid, driving mechanism are hydraulic cylinder.
Secondary enclosure is connected with fixed frame by movable pipeline section and is formed, and the entrance and electrode installing port of secondary enclosure are equal
Between movable pipeline section and fixed frame, the outlet of secondary enclosure is located at one end of movable pipeline section.
It can be detached between movable pipeline section and fixed frame.
Movable pipeline section and fixed frame are detachably connected with arc furnace cover.
Movable pipeline section and fixed frame are formed by water cooling Coil welding.
The electrode hole for electrode grafting is equipped in electrode small furnace cover, electrode small furnace cover seals grafting with arc furnace cover.
The beneficial effects of the invention are as follows：The electric arc furnaces can make enter stove in air be greatly decreased, to reduce into
The exhaust gas volumn for entering Eaf'S Dusting System thereby reduces the load and energy consumption of electric stove dust；It is greatly decreased into the air in stove,
The red-hot electrode of furnace high-temperature can be reduced by the dioxygen oxidation in air, to reduce consumption；Substantially subtract into the air in stove
It is few, it is possible to reduce the oxygen that the reducibility gas produced in stove is brought by air carries out secondary oxidation or burning, to improve cigarette
The content of reducing gas in gas is conducive to the further recycling and utilization of the reducibility gas generated in stove；With significant section
Can lower consumption effect.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide further understanding of the present invention, and of the invention shows
Meaning property embodiment and its explanation are not constituted improper limitations of the present invention for explaining the present invention.
Fig. 1 is the front view of electric arc furnaces of the present invention.
Fig. 2 is the enlarged diagram at electrode small furnace cover position.
Fig. 3 is the vertical view of electric arc furnaces of the present invention.
Fig. 4 is the vertical view of secondary enclosure.
Fig. 5 is in Fig. 4 along the sectional view in the directions A-A.
1, driving mechanism；2, workshop secondary cleaning shaft；3, secondary enclosure；4, electrode；5, electrode small furnace cover；6, movable
Pipeline section；7, fixed frame；8, arc furnace cover；
31, entrance；32, electrode installing port；33, it exports.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of electric arc furnaces, the electric arc furnaces include secondary enclosure 3, electrode 4, electrode small furnace cover 5, arc furnace cover 8 and stove
Thorax, secondary enclosure 3 is located at outside the burner hearth, and secondary enclosure 3 is located at the top of arc furnace cover 8, and electrode 4, electrode are small
Bell 5 and arc furnace cover 8 are arranged successively from inside to outside, and secondary enclosure 3 is cylindrical in shape structure, and one end of secondary enclosure 3 is set
There are entrance 31 and electrode installing port 32, the other end of secondary enclosure 3 to be equipped with outlet 33, the entrance 31 of secondary enclosure 3 is arranged
In outside electrode small furnace cover 5, electrode 4 passes through the electrode installing port 32 of secondary enclosure 3, as shown in Figure 1 to Figure 3.
By the way that secondary enclosure is arranged in the top of arc furnace cover 8, realization prevents stove outer space in EAF Steelmaking Process
Gas is entered from the electrode hole on furnace lid in stove and inner flue gas of the stove is from electrode hole to external diffusion, to reach closed electrode hole
Being freely lifted for electrode in smelting process is not influenced simultaneously.The present invention is mainly suitable for the electric furnace electrode hole of normal atmospheric pressure is close
Envelope.
In the present embodiment, which also contains workshop secondary cleaning shaft 2, and the outlet 33 of secondary enclosure 3 can
It is correspondingly connected with the entrance of workshop secondary cleaning shaft 2.The entrance of workshop secondary cleaning shaft 2 is connected with driving mechanism 1, the drive
Motivation structure 1 can enable the entrance of workshop secondary cleaning shaft 2 closer or far from the outlet 33 of secondary enclosure 3.
When air is entered meeting after the inner cavity of secondary enclosure 3 by the electrode installing port 32 on 3 top of secondary enclosure outside stove
Workshop secondary dust pelletizing system is evacuated to by workshop secondary cleaning shaft 2 and carries out gas cleaning and processing.When the flue gas in stove is by electrode
After the inner cavity of excessive to the secondary enclosure of the electrode hole of small furnace cover 53, equally can workshop be evacuated to by workshop secondary cleaning shaft 2
The spacing of secondary dedusting system progress gas cleaning and processing, secondary enclosure 3 and workshop secondary cleaning shaft 2 can be by driving
Mechanism 1 is adjusted；Driving mechanism 1 can be hydraulic cylinder.
In the present embodiment, in secondary enclosure 3 can be equipped with measured oxygen concentration instrument, the measured oxygen concentration instrument with
Driving mechanism 1 interlocks.It can be gone to the workshop final dusting pipeline 2 in the driving of driving mechanism 1 according to the oxygen concentration in flue gas
Entrance is moved closer or far from secondary enclosure 3, such as when detecting that the oxygen concentration in flue gas is less than setting value, workshop secondary
The entrance of cleaning shaft 2 can be moved far from secondary enclosure 3, and the on the contrary then entrance of workshop secondary cleaning shaft 2 is close to two
Secondary enclosure 3 moves, and what can be quantified in this way ensures practical sealing effect.
In the present embodiment, secondary enclosure 3 is horizontal, the outlet 33 and workshop secondary dedusting of secondary enclosure 3
The entrance of pipeline 2 is equipped with flange arrangement, in order to connect.The entrance 31 of secondary enclosure 3 is located at the right end of secondary enclosure 3
Lower part, the electrode installing port 32 of secondary enclosure 3 is located at the top of the right end of secondary enclosure 3, the outlet of secondary enclosure 3
33 are located at the left end of secondary enclosure 3, as shown in Figure 1.
In the present embodiment, the secondary enclosure 3 be the 4th hole for being different from arc furnace cover 8 an enclosure for
, secondary enclosure 3 is split structure, and secondary enclosure 3 is formed by movable pipeline section 6 and the connection of fixed frame 7, secondary smoke evacuation
The entrance 31 and electrode installing port 32 of cover 3 are respectively positioned between movable pipeline section 6 and fixed frame 7, and movable pipeline section 6 is tubular structure,
Movable pipeline section 6 is horizontal, and the outlet 33 of secondary enclosure 3 is located at one end of movable pipeline section 6, as shown in Figure 4 and Figure 5.
In the present embodiment, it can be detached between movable pipeline section 6 and fixed frame 7.Movable pipeline section 6 and fixed frame 7 are equal
It is detachably connected with arc furnace cover 8.Movable pipeline section 6 and fixed frame 7 are formed by water cooling Coil welding, for the ease of understanding
Do not have actual to draw the water cooling coil pipe in Fig. 4 and Fig. 5, it is understood that indicate water cooling for the hatching in solution Fig. 4 and Fig. 5
Coil pipe.Movable pipeline section 6, which can be removed, to be hung away by crane in order to the replacement of electrode small furnace cover 5.Arc furnace cover 8 is
Water cooled cover is connected by screw bolts between fixed frame 7 and arc furnace cover 8, easy to disassemble and maintenance.
In the present embodiment, three electrode holes that grafting is corresponded to for three electrodes 4, electrode are equipped in electrode small furnace cover 5
The size in hole as possible small on the basis of meeting rise fall of electrodes, to reduce the diffusing capacity of inner flue gas of the stove, electrode small furnace cover 5 and electricity
Arc stove bell 8 seals grafting.To water when electrode small furnace cover 5 can reduce electrode arc striking while preventing inner flue gas of the stove excessive
The damage of black furnace lid.
The above, only specific embodiments of the present invention, the range that cannot be implemented with its restriction invention, so it is equivalent
The displacement of component, or according to equivalent variations made by scope of patent protection of the present invention and modification, should all still fall within what this patent was covered
Scope.In addition, between technical characteristic and technical characteristic in the present invention, between technical characteristic and technological invention, technological invention with
Use can be freely combined between technological invention.
Claims (10)
1. a kind of electric arc furnaces, which is characterized in that the electric arc furnaces include secondary enclosure (3), electrode (4), electrode small furnace cover (5),
Arc furnace cover (8) and burner hearth, secondary enclosure (3) are located at outside the burner hearth, electrode (4), electrode small furnace cover (5) and electric arc furnaces
Bell (8) is arranged successively from inside to outside, and secondary enclosure (3) is cylindrical in shape structure, and one end of secondary enclosure (3) is equipped with entrance
(31) and electrode installing port (32), the other end of secondary enclosure (3) are equipped with outlet (33), the entrance of secondary enclosure (3)
(31) it is sheathed on electrode small furnace cover (5) outside, electrode (4) passes through the electrode installing port (32) of secondary enclosure (3).
2. electric arc furnaces according to claim 1, which is characterized in that the electric arc furnaces also contains workshop secondary cleaning shaft (2),
The outlet (33) of secondary enclosure (3) can be correspondingly connected with the entrance of workshop secondary cleaning shaft (2).
3. electric arc furnaces according to claim 2, which is characterized in that the entrance of workshop secondary cleaning shaft (2) is connected with drive
Motivation structure (1), the driving mechanism (1) can enable the entrance of workshop secondary cleaning shaft (2) closer or far from secondary smoke evacuation
Cover the outlet (33) of (3).
4. electric arc furnaces according to claim 3, which is characterized in that measured oxygen concentration instrument is equipped in secondary enclosure (3),
The measured oxygen concentration instrument is interlocked with driving mechanism (1).
5. electric arc furnaces according to claim 2, which is characterized in that secondary enclosure (3) is horizontal, secondary enclosure
(3) entrance of outlet (33) and workshop secondary cleaning shaft (2) is equipped with flange, and driving mechanism (1) is hydraulic cylinder.
6. electric arc furnaces according to claim 1, which is characterized in that secondary enclosure (3) is by movable pipeline section (6) and fixed frame
Frame (7) connection is formed, and the entrance (31) and electrode installing port (32) of secondary enclosure (3) are respectively positioned on movable pipeline section (6) and fix
Between frame (7), the outlet (33) of secondary enclosure (3) is located at one end of movable pipeline section (6).
7. electric arc furnaces according to claim 6, which is characterized in that can divide between movable pipeline section (6) and fixed frame (7)
From.
8. electric arc furnaces according to claim 6, which is characterized in that movable pipeline section (6) and fixed frame (7) are and electric arc furnaces
Bell (8) is detachably connected.
9. electric arc furnaces according to claim 6, which is characterized in that movable pipeline section (6) and fixed frame (7) are by aqueous cold plate
Pipe welds to be formed.
10. electric arc furnaces according to claim 1, which is characterized in that be equipped in electrode small furnace cover (5) and inserted for electrode (4)
The electrode hole connect, electrode small furnace cover (5) seal grafting with arc furnace cover (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810730383.6A CN108680004B (en) | 2018-07-05 | 2018-07-05 | Electric arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810730383.6A CN108680004B (en) | 2018-07-05 | 2018-07-05 | Electric arc furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108680004A true CN108680004A (en) | 2018-10-19 |
| CN108680004B CN108680004B (en) | 2023-12-08 |
Family
ID=63813334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810730383.6A Active CN108680004B (en) | 2018-07-05 | 2018-07-05 | Electric arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108680004B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3539692A (en) * | 1969-06-24 | 1970-11-10 | Fuller Co | Furnace hood |
| GB1511845A (en) * | 1974-07-18 | 1978-05-24 | Kent Ltd G | Gas measuring probes |
| US5241559A (en) * | 1992-03-30 | 1993-08-31 | Emc International, Inc. | Electric arc furnace roof |
| CN2514288Y (en) * | 2001-12-21 | 2002-10-02 | 烟台冶金水冷件厂 | Refining furnace cover for smelting steel |
| CN1846127A (en) * | 2003-09-01 | 2006-10-11 | 液体空气乔治洛德方法利用和研究的具有监督和管理委员会的有限公司 | Method for measuring gaseous species by derivation |
| CN201548055U (en) * | 2009-12-11 | 2010-08-11 | 攀枝花新钢钒股份有限公司 | Cooling furnace cover of LF furnace |
| KR101026515B1 (en) * | 2010-03-19 | 2011-04-01 | 주식회사 엠텍이엔지 | A roof apparatus for ladle furnace |
| CN201834939U (en) * | 2010-11-02 | 2011-05-18 | 河北钢铁股份有限公司承德分公司 | Improved LF (ladle furnace) dedusting electrode center cover |
| CN102401563A (en) * | 2011-12-01 | 2012-04-04 | 宝钢工程技术集团有限公司 | Water-cooling furnace cover of ladle refining furnace with high-temperature camera shooting function |
| CN202543249U (en) * | 2012-03-13 | 2012-11-21 | 河北钢铁股份有限公司承德分公司 | Improved double-layer furnace lid liner of ladle furnace (LF) ladle refining furnace |
| CN104457296A (en) * | 2014-11-25 | 2015-03-25 | 常州市苏三零工具有限公司 | Disengaging type in-core smoke extractor |
| CN205473867U (en) * | 2016-03-08 | 2016-08-17 | 中冶南方工程技术有限公司 | LF stove dust pelletizing system |
| CN106247801A (en) * | 2016-09-29 | 2016-12-21 | 宝钢工程技术集团有限公司 | A kind of water cooled cover of ladle refining furnace |
| CN207294830U (en) * | 2017-10-10 | 2018-05-01 | 舞阳钢铁有限责任公司 | A kind of bell of LF stoves and the combination unit of petticoat pipe |
| CN208475954U (en) * | 2018-07-05 | 2019-02-05 | 中冶京诚工程技术有限公司 | A kind of electric arc furnaces |
-
2018
- 2018-07-05 CN CN201810730383.6A patent/CN108680004B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3539692A (en) * | 1969-06-24 | 1970-11-10 | Fuller Co | Furnace hood |
| GB1511845A (en) * | 1974-07-18 | 1978-05-24 | Kent Ltd G | Gas measuring probes |
| US5241559A (en) * | 1992-03-30 | 1993-08-31 | Emc International, Inc. | Electric arc furnace roof |
| CN2514288Y (en) * | 2001-12-21 | 2002-10-02 | 烟台冶金水冷件厂 | Refining furnace cover for smelting steel |
| CN1846127A (en) * | 2003-09-01 | 2006-10-11 | 液体空气乔治洛德方法利用和研究的具有监督和管理委员会的有限公司 | Method for measuring gaseous species by derivation |
| CN201548055U (en) * | 2009-12-11 | 2010-08-11 | 攀枝花新钢钒股份有限公司 | Cooling furnace cover of LF furnace |
| KR101026515B1 (en) * | 2010-03-19 | 2011-04-01 | 주식회사 엠텍이엔지 | A roof apparatus for ladle furnace |
| CN201834939U (en) * | 2010-11-02 | 2011-05-18 | 河北钢铁股份有限公司承德分公司 | Improved LF (ladle furnace) dedusting electrode center cover |
| CN102401563A (en) * | 2011-12-01 | 2012-04-04 | 宝钢工程技术集团有限公司 | Water-cooling furnace cover of ladle refining furnace with high-temperature camera shooting function |
| CN202543249U (en) * | 2012-03-13 | 2012-11-21 | 河北钢铁股份有限公司承德分公司 | Improved double-layer furnace lid liner of ladle furnace (LF) ladle refining furnace |
| CN104457296A (en) * | 2014-11-25 | 2015-03-25 | 常州市苏三零工具有限公司 | Disengaging type in-core smoke extractor |
| CN205473867U (en) * | 2016-03-08 | 2016-08-17 | 中冶南方工程技术有限公司 | LF stove dust pelletizing system |
| CN106247801A (en) * | 2016-09-29 | 2016-12-21 | 宝钢工程技术集团有限公司 | A kind of water cooled cover of ladle refining furnace |
| CN207294830U (en) * | 2017-10-10 | 2018-05-01 | 舞阳钢铁有限责任公司 | A kind of bell of LF stoves and the combination unit of petticoat pipe |
| CN208475954U (en) * | 2018-07-05 | 2019-02-05 | 中冶京诚工程技术有限公司 | A kind of electric arc furnaces |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108680004B (en) | 2023-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109099716B (en) | Water-cooling furnace cover of ladle refining furnace and use method thereof | |
| CN208475954U (en) | A kind of electric arc furnaces | |
| CN108624739B (en) | Steelmaking equipment and smelting method for steelmaking by using scrap steel | |
| CN103060850B (en) | The method of metal titanium is prepared in a kind of continuous fused salt electrolysis | |
| CN108680004A (en) | A kind of electric arc furnaces | |
| CN219507954U (en) | Rotary natural gasification iron furnace | |
| CN208748138U (en) | A kind of electrode hole vacuum sealed devices | |
| CN107630120A (en) | A kind of adjusting method of two literary aditus laryngis of converter | |
| CN208475953U (en) | A kind of electric furnace | |
| CN211445801U (en) | Molten metal heating stirring and argon blowing treatment device | |
| CN208805053U (en) | A kind of closed fire door of electric arc furnaces | |
| CN205079602U (en) | Circulation that can go on retrieving to flue gas heat is to STREAMING crucible furnace | |
| CN108913843A (en) | A kind of electrode hole vacuum sealed devices | |
| JP7266938B1 (en) | Ladle refining furnace for steelmaking | |
| CN204401083U (en) | A kind of esr gas shield cover | |
| CN208475955U (en) | A kind of electric arc furnaces | |
| CN208936789U (en) | A kind of Water-cooling furnace cover of ladle refining furnace | |
| CN209655824U (en) | A kind of converter watercooled hood | |
| CN205398667U (en) | A positive displacement collecting cover that is used for secondary flue gas dust removal system of converter | |
| CN220012755U (en) | Sampling device of rotary anode furnace | |
| CN217877056U (en) | Electric arc furnace deoxidization exhaust apparatus | |
| CN212806241U (en) | Vacuum drying device of continuous casting crystallizer covering slag for steelmaking | |
| CN220379678U (en) | Heat insulation furnace body of garbage incinerator | |
| CN215050604U (en) | Simple and easy intensive argon protection equipment of electroslag furnace | |
| CN218723040U (en) | Electrode air sealing and air insulating mechanism of electric arc furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |