CN208475953U - Electric stove - Google Patents
Electric stove Download PDFInfo
- Publication number
- CN208475953U CN208475953U CN201821059695.0U CN201821059695U CN208475953U CN 208475953 U CN208475953 U CN 208475953U CN 201821059695 U CN201821059695 U CN 201821059695U CN 208475953 U CN208475953 U CN 208475953U
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- CN
- China
- Prior art keywords
- bell
- electric furnace
- rows
- furnace
- cooling coil
- 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.)
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Links
- 238000001816 cooling Methods 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 238000003466 welding Methods 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 13
- 239000007789 gas Substances 0.000 abstract description 9
- 238000007789 sealing Methods 0.000 abstract description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000003546 flue gas Substances 0.000 abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model discloses an electric furnace, including bell (1) and stove outer covering (2), the entry of stove outer covering (2) is up, and bell (1) is located the top of stove outer covering (2), is equipped with high temperature resistant sealing washer (3) between bell (1) and stove outer covering (2), and the inboard of high temperature resistant sealing washer (3) is equipped with water-cooling pipe (6) that can cool down for high temperature resistant sealing washer (3), and water-cooling pipe (6) are along the circumference setting of bell (1). The electric furnace realizes the sealing requirement in the furnace under certain conditions, thereby reducing the amount of flue gas generated by the electric furnace and further reducing the load and energy consumption of dust removal of the electric furnace; thereby improving the content of the reducing gas in the flue gas and being beneficial to further recycling and utilizing the reducing gas generated in the furnace; the nitrogen gas entering the furnace is reduced, the nitrogen content in the molten steel is reduced, and the purity of the molten steel is obviously improved.
Description
Technical field
The utility model relates to smelting equipment field, a kind of particularly electric furnace.
Background technique
Currently, there are gap, the water coolings of bell and upper furnace shell between furnace lid in EAF Steelmaking Process and upper furnace shell
It is also that there are gaps between coil pipe, will lead to the excessive air to outside furnace or outside furnace of flue gas in furnace in this way can enter in furnace.
The excessive pollution that will lead to furnace heat loss and smelt post environment of inner flue gas of the stove.The outer air of furnace enters in furnace, is bringing into
A large amount of nitrogen and other inert gases are also brought while 21% oxygen into, oxygen enters in furnace the oxidation that will increase electrode
And consumption, other gases in addition to oxygen, which enter, then will increase dust pelletizing system operating load in electric furnace, nitrogen enters in furnace
It is cracked under high-temperature electric arc afterwards, so this smelting process will cause molten steel nitrogen pick-up, reduces Molten Steel Cleanliness.
Utility model content
In order to solve the problems, such as that air is easily accessible electric furnace.The utility model provides a kind of electric furnace, to solve to smelt
Air or furnace gas is prevented to pass in and out furnace by the gap between bell and upper furnace shell or the backlash freedom between water cooling coil pipe in journey
The problem of body, can realize the closed state in furnace under certain condition.
The utility model solves that technical application used by its technical problem is novel to be: a kind of electric furnace, including bell and furnace
Shell, upward, bell is located at the top of furnace shell to the entrance of furnace shell, and high-temperature resistant seal ring is equipped between bell and furnace shell, and high temperature resistant is close
The inside of seal is equipped with the water cooling tube that can cool down to high-temperature resistant seal ring, and water cooling tube is arranged along the circumferential direction of bell.
When bell covers on furnace shell, bell and furnace shell can squeeze high-temperature resistant seal ring jointly, and water cooling tube can be with furnace
Lid and furnace shell contact simultaneously.
It is arranged in furnace shell and is lauched cold plate, along the vertical direction, lower water-cooled plate contains more and is lauched cooling coil, and adjacent two
It is lauched between cooling coil and is tightly connected by lower baffle plate.
Adjacent two are lauched between cooling coil there are spacing, lower baffle plate structure in a ring, the outer surface of lower baffle plate and furnace
The inner surface of shell matches connection.
The upper and lower ends of lower baffle plate are lauched cooling coil welding with adjacent two respectively.
The every medial surface for being lauched cooling coil is equipped with dross under two rows and follows closely, and the lower dross nail of two rows is set along the circumferential direction of furnace shell
It sets, the lower dross of two rows follows closely with respect to the horizontal plane mirror image each other.
Angle between the lower dross nail of two rows is 60 °~90 °.
Water-cooled plate is arranged in bell, along the vertical direction, upper water-cooled plate contains more upper water cooling coil pipes, upper water-cooled plate with
Overhead gage is equipped between bell, the lateral surface of every upper water cooling coil pipe is tightly connected with overhead gage.
The medial surface of every upper water cooling coil pipe is equipped with dross in two rows and follows closely, and dross nail is set along the circumferential direction of bell in two rows
It sets, dross follows closely mirror image each other in two rows.
Angle in two rows between dross nail is 60 °~90 °.
The beneficial effects of the utility model are: the setting of high-temperature resistant seal ring prevents the sealing because of caused by device variations
Not tight problem realizes the tight requirements in furnace under certain condition, to reduce the exhaust gas volumn of electric furnace generation, and then reduces
The load and energy consumption of electric stove dust；Air-tight state can reduce the red-hot electrode of furnace high-temperature by the dioxygen oxidation in air, thus
Reduce consumption；It is greatly decreased into the air in furnace, it is possible to reduce the oxygen of the reducibility gas produced in furnace brought by air
Gas carries out secondary oxidation or burning, to improve the content of reducing gas in flue gas, is conducive to the reducibility gas generated in furnace
It is further recycling and utilization；It reduces nitrogen to enter in furnace, reduces the content of nitrogen in molten steel, be obviously improved Molten Steel Cleanliness.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
Fig. 1 is the general structure schematic diagram of electric furnace described in the utility model.
Fig. 2 is the enlarged diagram at the position A in Fig. 1.
1, bell；2, furnace shell；3, high-temperature resistant seal ring；4, lower baffle plate；5, lower water-cooled plate；6, water cooling tube；7, lower dross nail；
8, upper water-cooled plate；9, overhead gage；10, upper dross nail；11, electrode；
51, it is lauched cooling coil；
81, upper water cooling coil pipe.
Specific embodiment
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 utility model will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of electric furnace, including bell 1 and furnace shell 2 setting up and down, upward, bell 1 is located at furnace shell 2 to the entrance of furnace shell 2
Top, bell 1 are equipped with electrode 11, and high-temperature resistant seal ring 3, the inside of high-temperature resistant seal ring 3 are equipped between bell 1 and furnace shell 2
Equipped with the water cooling tube 6 that high-temperature resistant seal ring 3 can be given to cool down, water cooling tube 6 is arranged along the circumferential direction of bell 1, as depicted in figs. 1 and 2.
By the way that high-temperature resistant seal ring 3 is arranged between bell 1 and furnace shell 2, the weight by bell 1 is compacted high-temperature resistant seal ring
The sealing between bell 1 and furnace shell 2 is realized after 3；High-temperature resistant seal ring 3 between bell 1 and upper furnace shell 2 is using such as ceramics packet
The heat-resisting materials such as the silicon rubber wrapped up in are made.When bell 1 covers on furnace shell 2, bell 1 and furnace shell 2 can squeeze resistance to height jointly
Warm sealing ring 3, water cooling tube 6 can contact simultaneously with bell 1 and furnace shell 2.It is provided in high-temperature resistant seal ring by the side of high temperature
Water cooling tube 6 extends the service life of high-temperature resistant seal ring 3 to reduce inner flue gas of the stove to the hyperthermia radiation of high-temperature resistant seal ring 3.
In the present embodiment, it is arranged in furnace shell 2 and is lauched cold plate 5, the cylindrical structure of lower water-cooled plate 5, along the vertical direction,
Lower water-cooled plate 5 is lauched cooling coil 51 containing multiple, and adjacent two are lauched between cooling coil 51 and are tightly connected by lower baffle plate 4,
As shown in Fig. 2, lower baffle plate 4 is for sealing two adjacent gaps being lauched between cooling coil 51.
In the present embodiment, multiple lower baffle plates 4 are equipped in furnace shell 2, between adjacent two are lauched and exist between cooling coil 51
Away from lower baffle plate 4 is in cirque structure, and the outer surface of lower baffle plate 4 matches connection with the inner surface of furnace shell 2.Up and down the two of lower baffle plate 4
End is lauched the welding of cooling coil 51 with adjacent two respectively, as shown in Figure 2.
In the present embodiment, the every medial surface for being lauched cooling coil 51 is welded with dross nail 7 under two rows, the lower dross of two rows
Nail 7 is along the circumferential direction setting of furnace shell 2, the lower dross nail 7 of two rows with respect to the horizontal plane mirror image each other.Between the lower dross nail 7 of two rows
Angle R1 is 60 °~90 °.
In the present embodiment, water-cooled plate 8 is arranged in bell 1, the top of upper water-cooled plate 8 is in cone tube shape structure, on
The cylindrical structure in the lower part of water-cooled plate 8, as shown in Figure 2.Along the vertical direction, upper water-cooled plate 8 contains multiple upper water cooling coil pipes 81,
Overhead gage 9 is equipped between upper water-cooled plate 8 and bell 1, the lateral surface of every upper water cooling coil pipe 81 is tightly connected with overhead gage 9,
As shown in Fig. 2, overhead gage 9 is used to seal the gap between the upper water cooling coil pipe 81 of adjacent two.
In the present embodiment, the medial surface of every upper water cooling coil pipe 81 is welded with dross nail 10 in two rows, hangs in two rows
Slag nail 10 is along the circumferential direction setting of bell 1, and dross follows closely 10 mirror images each other in two rows.In two rows dross nail 10 between angle R2 be
60 °~90 °.It is to reduce furnace high-temperature to the hot spoke of lower baffle plate 4 and overhead gage 9 that lower dross nail 7 and upper dross nail 10, which is arranged,
It penetrates, realizes dross in the inside of lower water-cooled plate 5 and upper water-cooled plate 8 welding dross nail 7, reduce lower baffle plate 4 while realizing sealing
With the heated and deformation of overhead gage 9.
The above, only specific embodiment of the utility model cannot limit the range that utility model is implemented, institute with it
With the displacement of its equivalent assemblies, or according to equivalent variations made by the utility model patent protection scope and modification, should all still fall within
The scope that this patent is covered.In addition, between technical characteristic and technical characteristic in the utility model, technical characteristic and technical application
Between novel, technical application it is novel it is novel with technical application between use can be freely combined.
Claims (10)
1. a kind of electric furnace, which is characterized in that the electric furnace includes bell (1) and furnace shell (2), the entrance of furnace shell (2) upward, bell
(1) it is located at the top of furnace shell (2), is equipped with high-temperature resistant seal ring (3) between bell (1) and furnace shell (2), high-temperature resistant seal ring (3)
Inside be equipped with can to high-temperature resistant seal ring (3) cool down water cooling tube (6), water cooling tube (6) along bell (1) circumferential direction setting.
2. electric furnace according to claim 1, which is characterized in that when bell (1) covers on furnace shell (2), bell (1) and furnace
Shell (2) can squeeze high-temperature resistant seal ring (3) jointly, and water cooling tube (6) can contact simultaneously with bell (1) and furnace shell (2).
3. electric furnace according to claim 1, which is characterized in that be arranged in furnace shell (2) and be lauched cold plate (5), along vertical side
It is lauched cooling coil (51) to, lower water-cooled plate (5) containing more, adjacent two are lauched between cooling coil (51) and pass through lower baffle plate
(4) it is tightly connected.
4. electric furnace according to claim 3, which is characterized in that adjacent two are lauched exist between cooling coil (51) between
Away from structure, the outer surface of lower baffle plate (4) match connection with the inner surface of furnace shell (2) to lower baffle plate (4) in a ring.
5. electric furnace according to claim 4, which is characterized in that the upper and lower ends of lower baffle plate (4) respectively with adjacent two
It is lauched cooling coil (51) welding.
6. electric furnace according to claim 3, which is characterized in that the every medial surface for being lauched cooling coil (51) is equipped with two rows
Lower dross follows closely (7), and the lower dross nail (7) of two rows is along the circumferential direction setting of furnace shell (2), and the lower dross nail (7) of two rows is with respect to the horizontal plane
Mirror image each other.
7. electric furnace according to claim 6, which is characterized in that the angle between the lower dross nail (7) of two rows is 60 °~90 °.
8. electric furnace according to claim 1, which is characterized in that water-cooled plate (8) are arranged in bell (1), along vertical side
To upper water-cooled plate (8) is equipped with overhead gage (9) between upper water-cooled plate (8) and bell (1), often containing more upper water cooling coil pipe (81)
The lateral surface of water cooling coil pipe (81) is tightly connected with overhead gage (9) on root.
9. electric furnace according to claim 8, which is characterized in that the medial surface of every upper water cooling coil pipe (81) is equipped with two rows
Upper dross follows closely (10), and dross follows closely (10) mirror image each other to dross nail (10) in the circumferential direction setting of bell (1), two rows in two rows.
10. electric furnace according to claim 9, which is characterized in that the angle in two rows between dross nail (10) is 60 °~
90°。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821059695.0U CN208475953U (en) | 2018-07-05 | 2018-07-05 | Electric stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821059695.0U CN208475953U (en) | 2018-07-05 | 2018-07-05 | Electric stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208475953U true CN208475953U (en) | 2019-02-05 |
Family
ID=65213158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821059695.0U Active CN208475953U (en) | 2018-07-05 | 2018-07-05 | Electric stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208475953U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680005A (en) * | 2018-07-05 | 2018-10-19 | 中冶京诚工程技术有限公司 | Electric stove |
-
2018
- 2018-07-05 CN CN201821059695.0U patent/CN208475953U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680005A (en) * | 2018-07-05 | 2018-10-19 | 中冶京诚工程技术有限公司 | Electric stove |
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| GR01 | Patent grant |