CN113776325A - Air cooling device for bottom electrode connecting bolt and installation and use method thereof - Google Patents
Air cooling device for bottom electrode connecting bolt and installation and use method thereof Download PDFInfo
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- CN113776325A CN113776325A CN202010521898.2A CN202010521898A CN113776325A CN 113776325 A CN113776325 A CN 113776325A CN 202010521898 A CN202010521898 A CN 202010521898A CN 113776325 A CN113776325 A CN 113776325A
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- bottom electrode
- electrode connecting
- air
- distribution tank
- 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
- 238000009434 installation Methods 0.000 title description 8
- 238000009826 distribution Methods 0.000 claims abstract description 69
- 239000007921 spray Substances 0.000 claims abstract description 36
- 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
- 238000010276 construction Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
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- 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 formed in the distribution tank; the lateral wall of the distribution tank is provided with a plurality of air outlets, 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. The compressed air is divided into a plurality of branches by the distribution tank to be sprayed out, and the spray heads are aligned with the bottom electrode connecting bolts one by one, so that the temperature of the bottom electrode connecting bolts can be quickly reduced, and the situations that the bolt stretcher fails and constructors are scalded due to overhigh temperature of the bottom electrode connecting bolts 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 direct current arc furnace bottom electrode of the Bao steel electric furnace factory reaches phi 4050mm, the maximum diameter of the support reaches phi 5410mm, the overall height is 1914mm, the direct current arc furnace bottom electrode is connected with the anode ring of the lower furnace shell through a flange, the bottom electrode connecting bolt 10a is M64 × 800, the aperture of the bolt connecting hole is phi 70mm, and the total number of the groups is 24. The online replacement of the bottom electrode 10 needs to bear various severe environments of a production field, particularly in summer, the bottom electrode needs to be dismantled about 4 hours after the furnace is shut down, the construction field is still in an abnormal high-temperature state soon after the furnace is shut down, the field temperature is actually measured in the process of dismantling the bottom electrode of the electric furnace, wherein the ambient temperature reaches 70 ℃, the maximum temperature of a bolt of the bottom electrode reaches 117.8 ℃, the maximum temperature of the bolt of the bottom electrode is 117.8 ℃, the bolt stretcher is used for dismantling because the bolt is connected with the bottom electrode, the ultra-high temperature on the bolt and the nut is immediately transmitted to 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 because the required oil pressure cannot be established, therefore, the hydraulic system is cooled by placing ice blocks on a hydraulic pump, but the cooling effect is limited, and only the bolt stretcher can achieve the using effect reluctantly, however, the hydraulic pipe and the machine head still work in a high-temperature environment, so that the pressure born by the oil pipe and the seal is very large, and the fault is very easy to occur. In addition, the constructors can construct the concrete in a high-temperature environment for a long time, and the health of the constructors is not facilitated.
Disclosure of Invention
In view of the above drawbacks of the prior art, an object of the present invention is to provide an air cooling device for a bottom electrode connecting bolt and an installation and use method thereof, which are used for cooling the bottom electrode connecting bolt, preventing the problem that a bolt tensioner is easy to lose efficacy due to the overhigh temperature of the bottom electrode connecting bolt, and effectively increasing the detaching speed of the bottom electrode connecting bolt; furthermore, 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 pipelines are prevented from being wound when the device is transported; in addition, the temperature of the bottom electrode connecting bolt is cooled, the field temperature is further reduced, the bottom electrode connecting bolt can be detached by construction personnel in a lower-temperature environment, the comfort of a working environment is improved, and meanwhile, the situation that the construction personnel are scalded due to mistaken touch is avoided.
In order to achieve the above and other related objects, the present invention provides an air cooling device for a bottom electrode connecting bolt, the air cooling device including a distribution tank having an air inlet; the lateral wall of the distribution tank is provided with a plurality of air outlets, 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. The compressed air is divided into a plurality of branches by the distribution tank to be sprayed out, and the spray heads are respectively aligned with the bottom electrode connecting bolts one by one, so that the temperature of the bottom electrode connecting bolts can be quickly reduced, and the situations that the bolt tensioner fails and constructors are scalded due to overhigh temperature of the bottom electrode connecting bolts are effectively prevented.
Furthermore, the plurality of air outlets are uniformly distributed on the side wall of the distribution tank in the circumferential direction, so that the spray heads are aligned with the bottom electrode connecting bolts one by one, and meanwhile, the air cooling device is more attractive.
Furthermore, the gas outlet is detachably connected with the corresponding gas outlet pipe, the gas inlet pipe is detachably connected to the gas inlet, ball valves are arranged on the gas inlet pipe and the gas outlet pipe, the gas inlet pipe and the gas outlet pipe are convenient to replace, and meanwhile the gas inlet pipe and the gas outlet pipe are controlled to circulate and close through the ball valves.
Furthermore, 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 is ensured to be aligned with the bottom electrode connecting bolts one by one.
Furthermore, the air outlet pipe comprises an aluminum alloy hard pipe and a metal hose, the spray head is arranged on the metal hose, the metal hose is easy to bend and good in flexibility, the position of the spray head is convenient to adjust, the spray head is ensured to be aligned with the bottom electrode connecting bolts one by one, and the aluminum alloy hard pipe is light in weight, so that the pipeline is prevented from being too heavy.
Furthermore, the top of the distribution tank is provided with a magnetic part which can be adsorbed at the bottom of the bottom electrode, so that the distribution tank can be conveniently installed at the central position of the bottom electrode, and the jacking platform and the ladle trolley can be used for other purposes.
Furthermore, at least three supporting pieces are arranged at the bottom of the distribution tank, so that the distribution tank is convenient to support, and the stability of the distribution tank is ensured.
Further, the air inlet is positioned at the bottom of the distribution tank, and 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 an installation and use method of the air cooling device for the bottom electrode connecting bolt, which is characterized by comprising the following steps:
s1, hoisting the lifting platform to the ladle trolley, and placing the distribution tank on the lifting platform;
s2, moving the ladle trolley until the distribution tank is positioned under the bottom electrode;
s3, starting the lifting platform to ascend until the upper surface of the distribution tank is abutted against 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 mounting an air outlet pipe and a spray head on each air outlet of the distribution tank;
s5, adjusting the position and the orientation of the spray heads until the spray direction of each spray head is 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 specified position, and sequentially removing the distribution tank and the lifting platform.
As described above, the air cooling device for the bottom electrode connecting bolt and the installation and use method thereof of the present invention 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 the plurality of branches by the distribution tank to be sprayed out, and the spray heads are respectively aligned with the bottom electrode connecting bolt one by one, so that the temperature of the bottom electrode connecting bolt can be rapidly reduced, the problem that a bolt stretcher is easy to lose efficacy due to overhigh temperature of the bottom electrode connecting bolt is effectively solved, and the dismounting speed of the bottom electrode connecting bolt is improved; furthermore, 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 pipelines are prevented from being wound when the device is transported; in addition, the temperature of the bottom electrode connecting bolt is cooled, the field temperature is further reduced, the bottom electrode connecting bolt can be detached by construction personnel in a lower-temperature environment, the comfort of a working environment is improved, and meanwhile, the situation that the construction personnel are scalded due to mistaken touch is avoided.
Drawings
Fig. 1 is a bottom view of the bottom electrode.
FIG. 2 is a front view of the air cooling device of the present invention.
FIG. 3 is a plan view of the air cooling device of the present invention.
Fig. 4 is a schematic view of a state that the distribution tank and the lifting platform are arranged on the ladle trolley.
FIG. 5 is a schematic view showing a state in which the distribution tank is positioned just below the bottom electrode.
FIG. 6 is a schematic view showing a state where the distribution tank is mounted on the lower surface of the bottom electrode.
FIG. 7 is a schematic view showing the state of the air cooling device of the present invention connected to the compressed air pipe.
Description of the reference numerals
The device 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 part 8, a supporting part 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
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 7. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 2 to 3, the air cooling device for a bottom electrode connecting bolt of the present invention comprises a distribution tank 1, wherein a magnetic member 8 capable of being adsorbed at the bottom of a bottom electrode 10 is disposed at the top of the distribution tank 1, and the magnetic member 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 inclined struts, and 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 of the distribution tank, 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, and each spray head 5 is respectively aligned with each bottom electrode connecting bolt 10a one by one, in the embodiment, each 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 spray head 5 is arranged on the metal hose 4b, so that the position and the orientation of the spray head 5 can be conveniently adjusted.
The dispensing can 1 may have a shape of a drum, a cylinder, a rectangular parallelepiped, etc., and in this embodiment, the dispensing can 1 is preferably shaped like a drum, and the drum-shaped dispensing can 1 may be inscribed in a sphere, as shown in fig. 2 and 3, the dispensing can 1 has a olive-shaped front view and a circular top view. The special shape of the distribution tank 1 can give consideration to both the stability and the high volume of the distribution tank 1 (the lower the center of mass of the distribution tank 1 is, the higher the stability is; because the distribution tank 1 is in the shape of a waist drum with a special shape, the larger the volume of the distribution tank 1 with the special shape is under the same surface area), and simultaneously, the material cost is also reduced; moreover, the top view of the distribution tank 1 is circular, so as to match the shape of the bottom electrode 10, and each spray head 5 is aligned with each bottom electrode connecting bolt 10a one by one; because the diameter of the bottom electrode 10 is very large, if the distribution tank 1 is too small, the required pipeline is too long, and the pipeline is easy to wind; 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 is not beneficial to storage and transportation, 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 an installation and use method of an air cooling device for a bottom electrode connecting bolt, which comprises the following steps:
s1, as shown in fig. 4, hoisting the lifting platform 13 to the ladle trolley 12, and placing the distribution tank 1 on the lifting platform 13;
s2, as shown in fig. 5, moving the ladle carriage 12 until the distribution tank 1 is positioned right under the bottom electrode 10;
s3, as shown in FIG. 6, starting the lifting platform 13 to ascend until the magnetic member 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, mounting the air inlet pipe 6, the aluminum alloy hard pipe 4a, the metal hose 4b and the spray head 5 on the distribution tank 1 in S3, and communicating the air inlet pipe 6 with the air compressor through the compressed air pipe 14;
s5, adjusting the position and the orientation of the spray heads 5 until the spray direction of each spray head 5 is aligned with the bottom electrode connecting bolts 10a one by one;
s6, starting the 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, descending the lifting platform 13, moving the ladle trolley 12 to a specified position, and sequentially removing the distribution tank 1 and the lifting platform 13.
So far, the cooling of the bottom electrode connecting bolt 10a is completed, and the constructor can disassemble 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, compressed air is divided into the plurality of branches by the distribution tank to be sprayed out, and the spray heads are respectively aligned with the bottom electrode connecting bolt one by one, so that the temperature of the bottom electrode connecting bolt can be rapidly reduced, the problem that a bolt stretcher is easy to lose efficacy due to overhigh temperature of the bottom electrode connecting bolt is effectively solved, and the disassembly speed of the bottom electrode connecting bolt is improved; furthermore, 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 pipelines are prevented from being wound when the device is transported; in addition, the temperature of the bottom electrode connecting bolt is cooled, the field temperature is further reduced, the bottom electrode connecting bolt can be detached by construction personnel in a lower-temperature environment, the comfort of a working environment is improved, and meanwhile, the situation that the construction personnel are scalded due to mistaken touch is avoided.
In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The air cooling device for the bottom electrode connecting bolt is characterized by comprising a distribution tank (1), wherein an air inlet (2) is formed in the distribution tank (1); be provided with a plurality of gas outlet (3) on the lateral wall of tank of distributor (1), all detachably is connected with outlet duct (4) on every gas outlet (3), and every outlet duct (4) all is provided with shower nozzle (5), each shower nozzle (5) aligns with each bottom electrode connecting bolt (10a) one by one respectively.
2. The air cooling device for the 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. The air cooling device for the bottom electrode connecting bolt is characterized in that an air inlet pipe (6) is detachably connected to the air inlet (2), and ball valves (7) are arranged on the air inlet pipe (6) and the air outlet pipe (4).
4. The air cooling device for the bottom electrode connecting bolt according to claim 1, wherein the air outlet pipe (4) is a metal hose (4 b).
5. The air cooling device for the bottom electrode connecting bolt according to claim 1, wherein the air outlet pipe (4) comprises an aluminum alloy hard pipe (4a) and a metal hose (4b), and the spray head (5) is arranged on the metal hose (4 b).
6. The air cooling device for the bottom electrode connecting bolt according to claim 1, characterized in that the top of the distribution tank (1) is provided with a magnetic member (8) which can be attached to the bottom of the bottom electrode (10).
7. Air cooling device for a bottom electrode connecting bolt according to claim 1, characterized in that the bottom of the distribution tank (1) is provided with at least three supports (9).
8. Air cooling device for a bottom electrode connecting bolt according to claim 7, characterized in that the air inlet (2) is located at the bottom of the distribution tank (1).
9. Air cooling device for a bottom electrode connection bolt according to claim 7, characterized in that the distribution tank (1) is waist-drum shaped.
10. A method of installing and using the air cooling device for the bottom electrode connecting bolt according to claim 1, wherein the method comprises the following steps:
s1, hoisting the lifting platform (13) to the ladle trolley (12), and placing the 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 ascend 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 a 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 position and the orientation of the spray heads (5) until the spray direction of each spray head (5) is aligned with the bottom electrode connecting bolts (10a) one by one;
s6, starting the air compressor, cooling 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;
s7, removing the compressed air inlet 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 specified 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 true CN113776325A (en) | 2021-12-10 |
| CN113776325B CN113776325B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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 |
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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 electrode for D.C. 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 electrode for D.C. 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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| CN113776325B (en) | 2024-04-26 |
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