CN113776325B - Air cooling device for bottom electrode connecting bolt and mounting and using method thereof - Google Patents
Air cooling device for bottom electrode connecting bolt and mounting and using method thereof Download PDFInfo
- Publication number
- CN113776325B CN113776325B CN202010521898.2A CN202010521898A CN113776325B CN 113776325 B CN113776325 B CN 113776325B CN 202010521898 A CN202010521898 A CN 202010521898A CN 113776325 B CN113776325 B CN 113776325B
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- Prior art keywords
- bottom electrode
- air
- distribution tank
- electrode connecting
- connecting bolt
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- 238000001816 cooling Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims description 12
- 239000007921 spray Substances 0.000 claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 229910000838 Al alloy Inorganic materials 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 3
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004804 winding 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
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/24—Cooling arrangements
-
- 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
- F27B3/20—Arrangements of heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/08—Heating by electric discharge, e.g. arc discharge
- F27D11/10—Disposition of electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
Abstract
The invention provides an air cooling device for a bottom electrode connecting bolt, which comprises a distribution tank, wherein an air inlet is arranged on the distribution tank; a plurality of air outlets are arranged on the side wall of the distribution tank, each air outlet is detachably connected with an air outlet pipe, each air outlet pipe is provided with a spray head, and each spray head is aligned with each bottom electrode connecting bolt one by one. According to the invention, the compressed air is divided into a plurality of branches through the distribution tank to be sprayed out, and each spray head is aligned with the bottom electrode connecting bolt one by one, so that the temperature of the bottom electrode connecting bolt can be rapidly reduced, and the situations of failure of the bolt stretcher and scalding of constructors caused by overhigh temperature of the bottom electrode connecting bolt are effectively prevented.
Description
Technical Field
The invention belongs to the field of equipment cooling, and particularly relates to an air cooling device for a bottom electrode connecting bolt and an installation and use method thereof.
Background
The diameter of the bottom electrode of the direct current arc furnace in the Bao-steel electric furnace factory reaches phi 4050mm, the maximum diameter of the bracket reaches phi 5410mm, the overall height is 1914mm, the bracket is connected with the anode ring of the lower furnace shell by a flange, the bottom electrode connecting bolt 10a is M64 x 800, the aperture of the bolt connecting hole is phi 70mm, and 24 groups are all arranged. The bottom electrode 10 needs to be replaced on line in various severe environments of a production site, particularly in summer, the bottom electrode needs to be removed after the furnace is stopped for about 4 hours, in the process of removing the bottom electrode of the electric furnace, the site temperature is actually measured in the process of removing the bottom electrode of the electric furnace due to the fact that the furnace is stopped for a short time, the environment temperature reaches 70 ℃, the highest temperature of the bottom electrode bolt reaches 117.8 ℃, the bottom electrode connecting bolt needs to be removed by using a bolt stretcher, the ultrahigh temperature of the bolt and the nut is immediately transmitted into a hydraulic system through a machine head of the bolt stretcher, the oil temperature of the hydraulic system exceeds the allowable value, and further the bolt stretcher fails due to the fact that the required oil pressure cannot be built, therefore, the hydraulic system is cooled by placing ice cubes on the hydraulic pump, the cooling effect is limited, the bolt stretcher can only be barely achieved, the hydraulic pipe and the machine head still work in the high-temperature environment, the pressure born by the oil pipe and the sealing is very large, and faults are easy to happen. In addition, constructors can construct in a high-temperature environment for a long time, which is not beneficial to the health of constructors.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide an air cooling device for a bottom electrode connection bolt and a mounting and using method thereof, which are used for cooling the bottom electrode connection bolt, preventing the problem that the bolt stretcher is easy to fail due to the over-high temperature of the bottom electrode connection bolt, and effectively improving the dismounting speed of the bottom electrode connection bolt; in addition, the air inlet pipe and the air outlet pipe are detachably connected, so that the air inlet pipe and the air outlet pipe are convenient to replace, and the pipeline is prevented from being wound during transportation; in addition, the invention further reduces the field temperature while cooling the temperature of the bottom electrode connecting bolt, ensures that constructors can dismantle the bottom electrode connecting bolt in a lower-temperature environment, improves the comfort of the working environment, and simultaneously avoids the situation that constructors are scalded due to false touch.
To achieve the above and other related objects, the present invention provides an air cooling device for a bottom electrode connection bolt, the air cooling device including a distribution tank provided with an air inlet; a plurality of air outlets are arranged on the side wall of the distribution tank, each air outlet is detachably connected with an air outlet pipe, each air outlet pipe is provided with a spray head, and each spray head is aligned with each bottom electrode connecting bolt one by one. According to the invention, the compressed air is divided into a plurality of branches through the distribution tank to be sprayed out, and each spray head is aligned with the bottom electrode connecting bolts one by one, so that the temperature of the bottom electrode connecting bolts can be rapidly reduced, and the situations of failure of the bolt stretcher and scalding of constructors caused by overhigh temperature of the bottom electrode connecting bolts are effectively prevented.
Further, the air outlets are circumferentially and uniformly distributed on the side wall of the distribution tank, so that the spray heads and the bottom electrode connecting bolts are aligned one by one, and meanwhile, the air cooling device is more attractive.
Further, the air outlet and the corresponding air outlet pipe are detachably connected, the air inlet is detachably connected with the air inlet pipe, and the air inlet pipe and the air outlet pipe are respectively provided with a ball valve, so that the air inlet pipe and the air outlet pipe are convenient to replace, and meanwhile, the circulation and the closing of the air inlet pipe and the air outlet pipe are controlled through the ball valves.
Further, the air outlet pipe is a metal hose, and the metal hose is easy to bend and good in flexibility, so that the position of the spray head can be conveniently adjusted, and the spray head and the bottom electrode connecting bolts are aligned one by one.
Further, the outlet duct includes aluminum alloy hard tube and metal collapsible tube, and the shower nozzle setting is at metal collapsible tube, because metal collapsible tube is flexible, the flexibility is good, is convenient for adjust the shower nozzle position, ensures shower nozzle and bottom electrode connecting bolt one-to-one, and aluminum alloy hard tube light in weight prevents that the pipeline is overweight.
Further, the top of the distribution tank is provided with a magnetic piece which can be adsorbed at the bottom of the bottom electrode, so that the distribution tank is conveniently arranged at the center of the bottom electrode, and the jacking platform and the ladle trolley can be used for other purposes.
Further, the bottom of the distribution tank is provided with at least three supporting pieces, so that the distribution tank is supported conveniently, and the stability of the distribution tank is ensured.
Further, the air inlet is positioned at the bottom of the distribution tank, so that the aesthetic property of the distribution tank is improved.
Further, the distribution tank is waist drum-shaped, and the distribution tank is ensured to have high volume while the transportation stability of the distribution tank is ensured.
The invention also provides a mounting and using method of the air cooling device for the bottom electrode connecting bolt, which is characterized by comprising the following steps of:
S1, hoisting a lifting platform to a ladle trolley, and placing a distribution tank on the lifting platform;
S2, moving the ladle trolley until the distribution tank is positioned right below the bottom electrode;
S3, starting the lifting platform to ascend until the upper surface of the distribution tank is abutted with the lower surface of the bottom electrode;
s4, communicating an air inlet on the distribution tank with an air compressor through a compressed air pipe, and sequentially installing an air outlet pipe and a spray head on each air outlet of the distribution tank;
s5, adjusting the positions and the orientations of the spray heads until the spraying directions of the spray heads are aligned with the bottom electrode connecting bolts one by one;
S6, starting the air compressor, starting to cool the bottom electrode connecting bolt until the temperature of the bottom electrode connecting bolt is reduced to a preset temperature, and closing the air compressor;
S7, removing the compressed air inlet pipe, the air compressor, the air outlet pipe and the spray head, descending the lifting platform, moving the ladle trolley to a designated position, and removing the distribution tank and the lifting platform in sequence.
As described above, the air cooling device for the bottom electrode connecting bolt and the installation and use method thereof have the following beneficial effects:
According to the air cooling device for the bottom electrode connecting bolt and the mounting and using method thereof, compressed air is divided into a plurality of branches through the distribution tank to be sprayed out, and each spray head is aligned with the bottom electrode connecting bolt one by one respectively, so that the temperature of the bottom electrode connecting bolt can be reduced rapidly, the problem that a bolt stretcher is easy to fail due to overhigh temperature of the bottom electrode connecting bolt is solved, and the dismounting speed of the bottom electrode connecting bolt is improved; in addition, the air inlet pipe and the air outlet pipe are detachably connected, so that the air inlet pipe and the air outlet pipe are convenient to replace, and the pipeline is prevented from being wound during transportation; in addition, the invention further reduces the field temperature while cooling the temperature of the bottom electrode connecting bolt, ensures that constructors can dismantle the bottom electrode connecting bolt in a lower-temperature environment, improves the comfort of the working environment, and simultaneously avoids the situation that constructors are scalded due to false touch.
Drawings
Fig. 1 is a bottom view of a bottom electrode.
Fig. 2 is a front view of an air cooling device according to the present invention.
Fig. 3 is a top view of an air cooling device according to the present invention.
Fig. 4 is a schematic view showing a state that a distribution tank and a lifting platform are placed on a ladle car.
Fig. 5 is a schematic view showing a state where the distribution tank is located right under the bottom electrode.
Fig. 6 is a schematic view showing a state in which the distribution tank is mounted on the lower surface of the bottom electrode.
Fig. 7 is a schematic diagram of a state that an air cooling device is connected with a compressed air pipe.
Description of the reference numerals
The steel ladle trolley comprises a distribution tank 1, an air inlet 2, an air outlet 3, an air outlet pipe 4, an aluminum alloy hard pipe 4a, a metal hose 4b, a spray head 5, an air inlet pipe 6, a ball valve 7, a magnetic piece 8, a support piece 9, a bottom electrode 10, a bottom electrode connecting bolt 10a, a steel ladle trolley 12, a lifting platform 13 and a compressed air pipe 14.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
Please refer to fig. 1 to 7. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
As shown in fig. 2 to 3, the air cooling device for the bottom electrode connecting bolt of the present invention comprises a distributing tank 1, wherein a magnetic piece 8 capable of being adsorbed on the bottom of a bottom electrode 10 is arranged on the top of the distributing tank 1, and the magnetic piece 8 is a permanent magnet; at least three supporting pieces 9 are arranged at the bottom of the distribution tank 1, in the embodiment, the supporting pieces 9 are diagonal braces, the number of the supporting pieces 9 is preferably 4, and the supporting pieces are uniformly distributed at four corners of the bottom of the distribution tank 1 so as to keep the stability of the distribution tank 1; the distribution tank 1 is provided with an air inlet 2, the air inlet 2 is detachably connected with an air inlet pipe 6, the air inlet pipe 6 is provided with a ball valve 7, and in the embodiment, the air inlet 2 is preferably arranged at the bottom of the distribution tank 1; a plurality of air outlets 3 are uniformly distributed on the side wall of the distribution tank 1 along the circumferential direction, each air outlet 3 is detachably connected with an air outlet pipe 4, each air outlet pipe 4 is provided with a ball valve 7 and a spray head 5, each spray head 5 is aligned with each bottom electrode connecting bolt 10a one by one, in the embodiment, the air outlet pipe 4 comprises an aluminum alloy hard pipe 4a and a metal hose 4b, and the spray heads 5 are arranged on the metal hose 4 b; in another embodiment, the air outlet pipe 4 is a metal hose 4b, and the nozzle 5 is disposed on the metal hose 4b, so as to adjust the position and orientation of the nozzle 5.
The shape of the dispensing can 1 may be a waist drum shape, a cylindrical shape, a rectangular parallelepiped shape, or the like, and in this embodiment, the dispensing can 1 is preferably provided in a waist drum shape, and the waist drum-shaped dispensing can 1 may be inscribed in one sphere, and as shown in fig. 2 and 3, the front view of the dispensing can 1 is olive-shaped, and its plan view is circular. The special shape of the distribution tank 1 can give consideration to both stability and high volume of the distribution tank 1 (the lower the center of mass of the distribution tank 1 is, the higher the stability is; since the distribution tank 1 is in the shape of a waist drum with the same surface area, the volume of the distribution tank 1 with the special shape is larger), and simultaneously, the material cost is reduced; moreover, the distribution tank 1 is provided with a circular shape in plan view, so as to be matched with the shape of the bottom electrode 10, and facilitate the alignment of each spray head 5 with each bottom electrode connecting bolt 10 a; since the diameter of the bottom electrode 10 is very large, if the distribution tank 1 is too small, the required piping is too long, and piping entanglement easily occurs; if the maximum diameter of the distribution tank 1 is matched with the diameter of the bottom electrode 10, the occupied area of the distribution tank 1 is too large, and the distribution tank 1 is not convenient to store and transport, so that the distribution tank 1 is arranged in a waist drum shape, the problem of pipeline winding is solved, and the distribution tank 1 is ensured to be proper in size.
The following provides a mounting and using method of an air cooling device for a bottom electrode connecting bolt, which comprises the following steps:
S1, as shown in FIG. 4, hoisting a lifting platform 13 onto a ladle trolley 12, and placing a distribution tank 1 on the lifting platform 13;
S2, as shown in FIG. 5, the ladle carriage 12 is moved until the distribution tank 1 is positioned right below the bottom electrode 10;
S3, as shown in FIG. 6, starting the lifting platform 13 to lift until the magnetic piece 8 on the distribution tank 1 is adsorbed at the central position of the lower surface of the bottom electrode 10;
S4, as shown in FIG. 7, an air inlet pipe 6, an aluminum alloy hard pipe 4a, a metal hose 4b and a spray head 5 are arranged on the distribution tank 1 in S3, and the air inlet pipe 6 is communicated with an air compressor through a compressed air pipe 14;
S5, adjusting the positions and the orientations of the spray heads 5 until the spraying directions of the spray heads 5 are aligned with the bottom electrode connecting bolts 10a one by one;
S6, starting an air compressor, opening the ball valve 7, starting to cool the bottom electrode connecting bolt 10a until the temperature of the bottom electrode connecting bolt 10a is reduced to a preset temperature, and closing the air compressor and the ball valve 7;
S7, removing the compressed air inlet pipe 14, the air compressor, the air inlet pipe 6, the aluminum alloy hard pipe 4a and the metal hose 4b, lowering the lifting platform 13, moving the ladle trolley 12 to a designated position, and sequentially removing the distribution tank 1 and the lifting platform 13.
Thus, the bottom electrode connecting bolt 10a is cooled, and the constructor can detach the cooled bottom electrode connecting bolt 10a through the bolt stretcher and then replace the bottom electrode 10.
In summary, according to the air cooling device for the bottom electrode connecting bolt and the installation and use method thereof, the compressed air is divided into the plurality of branches to be sprayed out through the distribution tank, and each spray head is aligned with the bottom electrode connecting bolt one by one, so that the temperature of the bottom electrode connecting bolt can be reduced rapidly, the problem that the bolt stretcher is easy to fail due to overhigh temperature of the bottom electrode connecting bolt is solved, and the disassembly speed of the bottom electrode connecting bolt is improved; in addition, the air inlet pipe and the air outlet pipe are detachably connected, so that the air inlet pipe and the air outlet pipe are convenient to replace, and the pipeline is prevented from being wound during transportation; in addition, the invention further reduces the field temperature while cooling the temperature of the bottom electrode connecting bolt, ensures that constructors can dismantle the bottom electrode connecting bolt in a lower-temperature environment, improves the comfort of the working environment, and simultaneously avoids the situation that constructors are scalded due to false touch.
In summary, the present invention effectively overcomes the various disadvantages of the prior art and has high industrial utility value.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (9)
1. An air cooling device for a bottom electrode connecting bolt is characterized by comprising a distribution tank (1), wherein an air inlet (2) is arranged on the distribution tank (1); a plurality of air outlets (3) are formed in the side wall of the distribution tank (1), each air outlet (3) is detachably connected with an air outlet pipe (4), each air outlet pipe (4) is provided with a spray head (5), and each spray head (5) is aligned with each bottom electrode connecting bolt (10 a) one by one; the top of the distribution tank (1) is provided with a magnetic piece (8) which can be adsorbed at the bottom of the bottom electrode (10).
2. An air cooling device for a bottom electrode connecting bolt according to claim 1, characterized in that the plurality of air outlets (3) are circumferentially and uniformly distributed on the side wall of the distribution tank (1).
3. An air cooling device for a bottom electrode connecting bolt according to claim 1, wherein the air inlet (2) is detachably connected with an air inlet pipe (6), and ball valves (7) are arranged on the air inlet pipe (6) and the air outlet pipe (4).
4. An air cooling device for a bottom electrode connection bolt according to claim 1, characterized in that the outlet duct (4) is a metal hose (4 b).
5. An air cooling device for a bottom electrode connecting bolt according to claim 1, characterized in that the air outlet pipe (4) comprises an aluminum alloy hard pipe (4 a) and a metal hose (4 b), and the spray head (5) is arranged on the metal hose (4 b).
6. An air cooling device for a bottom electrode connection bolt according to claim 1, characterized in that the distribution tank (1) bottom is provided with at least three supports (9).
7. An air cooling device for a bottom electrode connection bolt according to claim 6, characterized in that the air inlet (2) is located at the bottom of the distribution tank (1).
8. An air cooling device for a bottom electrode connection bolt according to claim 6, characterized in that the distribution tank (1) is waist drum shaped.
9. A method of installing and using an air cooling apparatus for a bottom electrode attachment bolt of claim 1, comprising the steps of:
s1, hoisting a lifting platform (13) onto a ladle trolley (12), and placing a distribution tank (1) on the lifting platform (13);
s2, moving the ladle trolley (12) until the distribution tank (1) is positioned right below the bottom electrode (10);
S3, starting the lifting platform (13) to lift until the upper surface of the distribution tank (1) is abutted against the lower surface of the bottom electrode (10);
S4, communicating an air inlet (2) on the distribution tank (1) with an air compressor through a compressed air pipe (14), and sequentially installing an air outlet pipe (4) and a spray head (5) on each air outlet (3) of the distribution tank (1);
S5, adjusting the positions and the orientations of the spray heads (5) until the spraying directions of the spray heads (5) are aligned with the bottom electrode connecting bolts (10 a) one by one;
S6, starting the air compressor, starting to cool the bottom electrode connecting bolt (10 a) until the temperature of the bottom electrode connecting bolt (10 a) is reduced to a preset temperature, and closing the air compressor;
S7, removing the compressed air pipe (14), the air compressor, the air outlet pipe (4) and the spray head (5), descending the lifting platform (13), moving the ladle trolley (12) to a designated position, and sequentially removing the distribution tank (1) and the lifting platform (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010521898.2A CN113776325B (en) | 2020-06-10 | 2020-06-10 | Air cooling device for bottom electrode connecting bolt and mounting and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010521898.2A CN113776325B (en) | 2020-06-10 | 2020-06-10 | Air cooling device for bottom electrode connecting bolt and mounting and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113776325A CN113776325A (en) | 2021-12-10 |
| CN113776325B true CN113776325B (en) | 2024-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010521898.2A Active CN113776325B (en) | 2020-06-10 | 2020-06-10 | Air cooling device for bottom electrode connecting bolt and mounting and using method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN113776325B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2227319Y (en) * | 1995-08-02 | 1996-05-15 | 成都冶金技术工程公司 | Bottom anode of dc arc steel-smelting furnace |
| CN2613123Y (en) * | 2003-04-03 | 2004-04-21 | 宝山钢铁股份有限公司 | DC arc hearth electrode |
| CN106595319A (en) * | 2017-02-10 | 2017-04-26 | 西安电炉研究所有限公司 | Cylinder type air-cooling bottom electrode |
| CN109539800A (en) * | 2018-10-12 | 2019-03-29 | 中冶宝钢技术服务有限公司 | Bottom electrode of electric furnace attaching nut attaching/detaching apparatus and assembly and disassembly methods |
| CN110482438A (en) * | 2018-05-15 | 2019-11-22 | 中冶宝钢技术服务有限公司 | DC arc furnace bottom electrode mounting and adjusting tool and hearth electrode installation method |
| CN110608617A (en) * | 2019-10-22 | 2019-12-24 | 中冶赛迪工程技术股份有限公司 | Bottom electrode of DC arc furnace |
-
2020
- 2020-06-10 CN CN202010521898.2A patent/CN113776325B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2227319Y (en) * | 1995-08-02 | 1996-05-15 | 成都冶金技术工程公司 | Bottom anode of dc arc steel-smelting furnace |
| CN2613123Y (en) * | 2003-04-03 | 2004-04-21 | 宝山钢铁股份有限公司 | DC arc hearth electrode |
| CN106595319A (en) * | 2017-02-10 | 2017-04-26 | 西安电炉研究所有限公司 | Cylinder type air-cooling bottom electrode |
| CN110482438A (en) * | 2018-05-15 | 2019-11-22 | 中冶宝钢技术服务有限公司 | DC arc furnace bottom electrode mounting and adjusting tool and hearth electrode installation method |
| CN109539800A (en) * | 2018-10-12 | 2019-03-29 | 中冶宝钢技术服务有限公司 | Bottom electrode of electric furnace attaching nut attaching/detaching apparatus and assembly and disassembly methods |
| CN110608617A (en) * | 2019-10-22 | 2019-12-24 | 中冶赛迪工程技术股份有限公司 | Bottom electrode of DC arc furnace |
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| Publication number | Publication date |
|---|---|
| CN113776325A (en) | 2021-12-10 |
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