CN110608617A - Bottom electrode of DC arc furnace - Google Patents
Bottom electrode of DC arc furnace Download PDFInfo
- Publication number
- CN110608617A CN110608617A CN201911008334.2A CN201911008334A CN110608617A CN 110608617 A CN110608617 A CN 110608617A CN 201911008334 A CN201911008334 A CN 201911008334A CN 110608617 A CN110608617 A CN 110608617A
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- furnace
- conductive
- bottom plate
- conductive contact
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- 238000010891 electric arc Methods 0.000 claims abstract description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 17
- 229910052802 copper Inorganic materials 0.000 claims description 17
- 239000010949 copper Substances 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 230000017525 heat dissipation Effects 0.000 claims description 11
- 238000009434 installation Methods 0.000 abstract description 4
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 21
- 230000009286 beneficial effect Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 238000003723 Smelting Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention relates to a bottom electrode of a direct current electric arc furnace, which belongs to the technical field of metallurgy, is positioned below a top cathode and comprises a plurality of in-furnace conductive contact pins arranged in a furnace body side by side and a plurality of out-furnace conductive contact pins arranged outside the furnace body side by side, wherein the out-furnace conductive contact pins and the in-furnace conductive contact pins are respectively connected with two sides of an in-furnace conductive bottom plate; the other end of the conductive contact pin outside the furnace is connected with a conductive bottom plate outside the furnace, an air inlet hole is formed in the conductive bottom plate outside the furnace, and the conductive bottom plate outside the furnace is connected with a power supply; the intersection of the projections of the external conductive contact pin and the top cathode on the conductive bottom plate in the furnace is larger than zero; the intersection of the projections of the conductive contact pin in the furnace and the air inlet hole on the conductive bottom plate in the furnace is larger than zero. The invention solves the problem of large volume of the bottom electrode caused by the limited installation position of the conductive contact pins in the prior art by arranging two rows of conductive contact pins.
Description
Technical Field
The invention belongs to the technical field of metallurgy, and relates to a bottom electrode of a direct current electric arc furnace.
Background
In the field of electric furnace steelmaking, the direct current arc furnace has the advantages of low electrode consumption, small voltage fluctuation and flicker, small impact on a preceding stage power grid, low power consumption, high actual input power, full stirring of a molten pool and the like, and is widely used. The existing direct current electric arc furnace is mostly in a single-cathode form, along with the increase of the capacity of a furnace body and the shortening of a smelting period, the capacity of a transformer is larger and larger, and the original single cathode can not meet the requirements of modern steel making gradually, so that the double-cathode direct current electric arc furnace appears.
Since the problem of arcing under the cathode leads to rapid wear of the conductive contact pins, it is inconvenient to arrange them in this area in order to increase the life of the bottom electrode. A traditional single-electrode electric arc furnace bottom electrode cannot arrange a conductive contact pin in a corresponding furnace conductive bottom plate area above a conductive copper pipe outside a furnace, and the area of the conductive contact pin which cannot be arranged is increased due to the appearance of double cathodes. The traditional bottom electrode conductive contact pin penetrates through the inner and outer conductive bottom plates of the furnace from top to bottom, so that the outer air-cooled guide plates in the forced air-cooled area are more difficult to arrange, the cooling effect is poor, the size of the bottom electrode is increased, and the design, the manufacture and the service life of a furnace body are not facilitated.
The traditional newly-manufactured bottom electrode is installed on a furnace body, and the contact nonuniformity of the scrap steel and the conductive contact pins after the scrap steel is added into the furnace can cause that some contact pins do not pass current after being electrified, and some contact pins pass the current too much and have serious loss, thereby shortening the service life of the bottom electrode.
Disclosure of Invention
In view of this, the present application provides a bottom electrode of a dc arc furnace, which solves the problem of large volume of the bottom electrode caused by the limited installation position of the conductive contact pins in the prior art by providing two rows of conductive contact pins.
In order to achieve the purpose, the invention provides the following technical scheme:
a bottom electrode of a direct current electric arc furnace is positioned below a top cathode and comprises a plurality of in-furnace conductive contact pins arranged in a furnace body side by side and a plurality of out-furnace conductive contact pins arranged outside the furnace body side by side, wherein the out-furnace conductive contact pins and the in-furnace conductive contact pins are respectively connected to two sides of an in-furnace conductive bottom plate; the other end of the conductive contact pin outside the furnace is connected with a conductive bottom plate outside the furnace, and the conductive bottom plate outside the furnace is connected with a power supply. The beneficial effect of this basic scheme does: the conductive contact pins are divided into a furnace interior and a furnace exterior, so that the conductive contact pins can be independently arranged according to actual requirements, the conductive contact pins in the furnace can avoid a top cathode, the conductive contact pins in the furnace can be still arranged above a conductive bottom plate in the furnace corresponding to the conductive copper pipe outside the furnace, the conductive contact pins outside the air cooling furnace can not be influenced by the arrangement of the conductive contact pins in the furnace, the volume of a bottom electrode is favorably reduced, and the design of a furnace body is facilitated.
Optionally, an air inlet hole is formed in the conductive bottom plate outside the furnace, the wall of the air inlet hole is a conductive copper pipe, and the conductive bottom plate outside the furnace is connected with a power supply through the conductive copper pipe. The beneficial effect of this scheme does: the conductive copper pipe outside the furnace not only has the function of conducting electricity, but also has the function of an air cooling pipe, and the resistance heat phenomenon caused by overcurrent is effectively reduced.
Optionally, a plurality of spiral air-cooled flow deflectors are arranged on one side of the conductive bottom plate in the furnace, which is far away from the conductive contact pins in the furnace, flow guide grooves are formed between adjacent air-cooled flow deflectors, and the conductive contact pins outside the furnace are uniformly divided into the corresponding air-cooled flow guide grooves by the air-cooled flow deflectors. The beneficial effect of this scheme does: the air-cooled guide plate is fixed on the conductive bottom plate in the furnace, so that the arrangement is convenient and the cooling effect is good.
Optionally, the intersection of projections of the conductive contact pin inside the furnace and the air inlet hole on the conductive bottom plate inside the furnace is greater than zero, and the intersection of projections of the conductive contact pin outside the furnace and the top cathode on the conductive bottom plate inside the furnace is greater than zero. The beneficial effect of this scheme does: the arrangement area of the conductive contact pins is increased.
Optionally, one end of the in-furnace conductive contact pin, which is far away from the in-furnace conductive bottom plate, is connected with a flow equalizing plate. The beneficial effect of this scheme does: by welding the flow equalizing plate on the top of the contact pins outside the furnace, the current can be uniformly conducted to the conductive contact pins in each furnace through the flow equalizing plate after the smelting arcing, so that the contact pin consumption is kept uniform.
Optionally, the furnace conductive contact pin is fixedly connected with the conductive bottom plate in the furnace through the conductive square steel in the furnace. The beneficial effect of this scheme does: the length of the conductive square steel effectively ensures the contact area of the current passing position.
Optionally, a first mounting hole is formed in the conductive bottom plate inside the furnace, a second mounting hole is formed in the conductive bottom plate outside the furnace, and two ends of the conductive contact pin outside the furnace are respectively inserted into the first mounting hole and the second mounting hole.
Optionally, a heat dissipation flow guide rod is arranged in the air inlet hole, and one end of the heat dissipation flow guide rod is fixedly connected with the conductive bottom plate in the furnace. The beneficial effect of this scheme does: the length of the heat dissipation flow guide rod can be lengthened according to the field requirement, and cold air can uniformly enter the lengthened heat dissipation flow guide rod, so that the heat dissipation effect is improved.
Optionally, the air inlet hole is located in the center of the conductive bottom plate outside the furnace.
Optionally, one end of the heat dissipation flow guide rod is welded to the center of the lower surface of the conductive bottom plate in the furnace.
Optionally, the furnace further comprises an external wind shield fixedly connected to two ends of the conductive bottom plate in the furnace. The beneficial effect of this scheme does: the external wind shield can effectively control the direction of cold air flowing out.
The invention has the beneficial effects that:
1. the conductive contact pins are divided into the furnace and the furnace, so that the conductive contact pins can be independently arranged according to actual requirements; the conductive contact pin in the furnace can avoid the top cathode; conductive contact pins in the furnace can still be arranged above the conductive bottom plate in the furnace corresponding to the conductive copper tube outside the furnace; not only the flexibility and the arrangement area of the conductive contact pins are increased, but also the volume of the device is favorably reduced.
2. According to the invention, the flow equalizing plate is arranged at the top of the conductive contact pins in the furnace, so that the current after arc striking during smelting can be uniformly conducted to the conductive contact pins in each furnace through the flow equalizing plate, the consumption of the contact pins is kept uniform, the service life of the conductive contact pins is prolonged, and the problem of shortened service life of a bottom electrode caused by uneven consumption of the conductive contact pins in the prior art is solved.
3. The air cooling plate is arranged without considering the area of the top cathode, so that the air cooling guide plate outside the furnace is reasonably arranged, and the cooling effect of the contact pin and the conductive bottom plates inside and outside the furnace is good.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a front view of a double-cathode DC arc furnace bottom electrode;
FIG. 2 is a cross-sectional view C-C of FIG. 1;
FIG. 3 is a cross-sectional view A-A of FIG. 1;
FIG. 4 is a view taken in the direction B of FIG. 1;
FIG. 5 is a first schematic view of a dual-cathode DC arc furnace bottom electrode applied to an electric arc furnace;
FIG. 6 is a second schematic diagram of a dual-cathode DC arc furnace bottom electrode applied to an electric arc furnace.
Reference numerals: the device comprises a double-top cathode 1, a flow equalizing plate 2, in-furnace conductive square steel 3, a conductive busbar 4, a heat dissipation flow guide rod 5, an out-furnace conductive copper pipe 6, an out-furnace conductive contact pin 7, an out-furnace conductive bottom plate 8, an out-furnace wind shield 9, an in-furnace conductive bottom plate 10, an in-furnace conductive contact pin 11 and an air cooling flow guide plate 12.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 6, a bottom electrode of a dc arc furnace is located below a double-top cathode 1, and comprises a flow equalizing plate 2, a conductive contact pin 11 in the furnace, conductive square steel 3 in the furnace, a conductive bottom plate 10 in the furnace, a conductive contact pin 7 outside an air cooling furnace, a conductive bottom plate 8 outside the furnace, a wind shield 9 outside the furnace, an air cooling guide plate 12 outside the furnace, a heat dissipation guide rod 5 and a conductive copper tube 6 outside the furnace.
The flow equalizing plate 2 is provided with a through hole matched with the conductive contact pin 11 in the furnace, the conductive contact pin 11 in the furnace is welded with the flow equalizing plate 2, and the position of the flow equalizing plate 2 is shown in figure 1. The lower end face of the conductive contact pin 11 in the furnace is welded with the conductive square steel 3 in the furnace after being processed, and no conductive contact pin is arranged below the double cathodes on the top. The bottom surface of the conductive square steel 3 in the furnace is provided with a groove after being processed, and is tightly attached to the upper surface of the conductive bottom plate 10 in the furnace and then welded, so that the contact area is fully ensured. Through holes are formed in the conductive bottom plate 10 inside the furnace and the conductive bottom plate 8 outside the furnace, and two ends of the conductive contact pin 7 outside the air cooling furnace are respectively inserted and then welded with the conductive contact pin. The conductive contact pins 7 outside the air cooling furnace are arranged between the air cooling guide plates 12 outside the furnace, and the conductive contact pins 7 outside the air cooling furnace are uniformly divided into corresponding air cooling guide grooves. The conductive bottom plate 8 outside the furnace is connected with the conductive copper tube 6 outside the furnace through bolts and tensioned through disc springs, so that good contact of the conductive surface is ensured. The conductive contact pins 7 outside the air cooling furnace are not arranged in the areas of the conductive copper plates inside and outside the furnace corresponding to the conductive copper pipes 6 outside the furnace. The heat dissipation flow guide rod 5 is welded on the conductive bottom plate 10 in the furnace. The current passes through a conductive bus bar 4, a conductive copper tube 6 outside the furnace, a conductive bottom plate 8 outside the furnace, a conductive contact pin 7 outside the air cooling furnace, a conductive bottom plate 10 inside the furnace, conductive square steel 3 inside the furnace, a conductive contact pin 11 inside the furnace, a current equalizing plate 2, and the waste steel and the cathode to melt the waste steel after arcing.
The projection intersection of the external conductive contact pin 7 and the air inlet hole on the conductive bottom plate in the furnace is zero; the projection intersection of the conductive contact pin 11 in the furnace and the double-top cathode 1 on the conductive bottom plate 10 in the furnace is zero; the intersection of projections of the conductive contact pin 11 in the furnace and the air inlet on the conductive bottom plate 10 in the furnace is larger than zero, and the intersection of projections of the conductive contact pin 7 outside the furnace and the double-top cathode 1 on the conductive bottom plate 10 in the furnace is larger than zero, so that the arrangement area of the conductive contact pins is increased, and the volume of equipment is favorably reduced.
Because the shape and the size of the social scrap steel are different when the existing bottom electrode is smelted for the first time, the contact of the scrap steel and each conductive contact pin 11 in the furnace is difficult to ensure after the scrap steel is fed into the furnace. Therefore, the current passes only through the conductive contact pin 11 in the furnace which is in contact with the scrap after the energization, and the current passing through the contact pin is too large, so that the loss of the conductive contact pin is accelerated after the conductive contact pin is overheated, and the consumption of the bottom electrode is uneven, and the service life is shortened. Therefore, the current equalizing plate 2 is added, the scrap steel is lapped with the current equalizing plate 2, and the current is uniformly conducted to the conductive contact pins 11 in each furnace through the current equalizing plate 2, so that the contact pin loss is basically the same, and the service life of the bottom electrode is effectively prolonged.
The bottom electrode, the contact pin, of the prior art is typically welded to the conductive floor 8 outside the furnace from within the furnace through the conductive floor 10 inside the furnace. The contact pins are cooled by cold air through an opening at the joint of the conductive bottom plate 8 outside the furnace and the conductive copper pipe 6 outside the furnace, so that the contact pins cannot be arranged in the area. The contact pins in this area are typically consumed faster due to arcing beneath the top cathode. Therefore, to ensure the useful life of the device, this area is usually not populated with contact pins. If the traditional bottom electrode form is adopted, two areas below the top cathode and one area of the vent hole of the conductive copper tube 6 outside the furnace can not be provided with contact pins, but in order to ensure the effective number of the contact pins, the volume of the bottom electrode needs to be increased to solve the problem, so that the arrangement of the bottom cathode in the furnace body is difficult, and the manufacturing cost is high. The contact pins of the bottom electrode are respectively arranged in the furnace and the outer furnace, the conductive contact pins 11 in the furnace are arranged without considering the air cooling opening area of the conductive copper pipes, and the conductive contact pins 7 outside the furnace are arranged without considering two top cathode areas, so that the air cooling guide plate 12 outside the furnace is reasonable in arrangement, and the cooling effects of the contact pins and the conductive bottom plates inside and outside the furnace are good. Therefore, the service life of the bottom electrode is effectively prolonged, the size is reduced, the manufacturing cost is saved, and the arrangement and the installation in the furnace body are convenient.
The double-cathode direct-current arc furnace bottom electrode is convenient for arranging and installing the guide plate and is beneficial to cooling the contact pin; on the other hand, the arrangement and installation of the contact pins are convenient, and the volume of the equipment is reduced.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (10)
1. A bottom electrode of a direct current electric arc furnace is positioned below a top cathode, and is characterized in that: the furnace comprises a plurality of furnace internal conductive contact pins arranged in a furnace body side by side and a plurality of furnace external conductive contact pins arranged outside the furnace body side by side, wherein the furnace external conductive contact pins and the furnace internal conductive contact pins are respectively connected to two sides of a furnace internal conductive bottom plate;
the other end of the conductive contact pin outside the furnace is connected with a conductive bottom plate outside the furnace, and the conductive bottom plate outside the furnace is connected with a power supply.
2. The bottom electrode for a direct current electric arc furnace of claim 1, wherein: an air inlet hole is formed in the conductive bottom plate outside the furnace, the wall of the air inlet hole is a conductive copper pipe, and the conductive bottom plate outside the furnace is connected with a power supply through the conductive copper pipe.
3. A bottom electrode for a direct current electric arc furnace as defined in claim 2, wherein: the air inlet is positioned in the center of the conductive bottom plate outside the furnace.
4. A bottom electrode for a direct current electric arc furnace as defined in claim 2, wherein: and a heat dissipation flow guide rod is arranged in the air inlet hole, and one end of the heat dissipation flow guide rod is fixedly connected with the conductive bottom plate in the furnace.
5. A bottom electrode for a direct current electric arc furnace as defined in claim 2, wherein: and a plurality of spiral air-cooled guide plates are arranged on one side of the conductive bottom plate in the furnace, which is far away from the conductive contact pin in the furnace, a guide groove is formed between every two adjacent air-cooled guide plates, and the conductive contact pin outside the furnace is uniformly divided into the corresponding air-cooled guide grooves by the air-cooled guide plates.
6. A bottom electrode for a direct current electric arc furnace as defined in claim 2, wherein: and the intersection of the projections of the conductive contact pin in the furnace and the air inlet hole on the conductive bottom plate in the furnace is larger than zero.
7. The bottom electrode for a direct current electric arc furnace of claim 1, wherein: the intersection of the projections of the conductive contact pin outside the furnace and the top cathode on the conductive bottom plate in the furnace is larger than zero.
8. The bottom electrode for a direct current electric arc furnace of claim 1, wherein: and one end of the conductive contact pin in the furnace, which is far away from the conductive bottom plate in the furnace, is connected with a flow equalizing plate.
9. The bottom electrode for a direct current electric arc furnace of claim 1, wherein: the furnace conductive contact pin is fixedly connected with the conductive bottom plate in the furnace through the conductive square steel in the furnace.
10. The bottom electrode for a direct current electric arc furnace as set forth in any one of claims 2 to 6, wherein: and the furnace air baffle is fixedly connected with two ends of the conductive bottom plate in the furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911008334.2A CN110608617B (en) | 2019-10-22 | Bottom electrode of direct current arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911008334.2A CN110608617B (en) | 2019-10-22 | Bottom electrode of direct current arc furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110608617A true CN110608617A (en) | 2019-12-24 |
| CN110608617B CN110608617B (en) | 2024-05-14 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112902674A (en) * | 2021-01-26 | 2021-06-04 | 中冶赛迪工程技术股份有限公司 | Air-cooled contact pin type bottom electrode |
| CN113776325A (en) * | 2020-06-10 | 2021-12-10 | 中冶宝钢技术服务有限公司 | Air cooling device for bottom electrode connecting bolt and installation and use method thereof |
| CN115127353A (en) * | 2022-06-15 | 2022-09-30 | 中冶赛迪工程技术股份有限公司 | Long-life transverse air-cooled direct-current arc furnace bottom electrode |
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| US5371759A (en) * | 1991-09-12 | 1994-12-06 | Kortec Ag | D.C. furnace with a hearth electrode, hearth electrode and electrode block, as well as process for operating said furnace |
| US5381441A (en) * | 1992-12-04 | 1995-01-10 | Deutsche Voest-Alpine Industrieanlagenbau Gmbh | Direct current arc furnace and method for its operation |
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| CN207365686U (en) * | 2017-09-17 | 2018-05-15 | 贵州明峰工业废渣综合回收再利用有限公司 | A kind of single electrode direct current zinc metallurgy electric arc furnaces |
| CN210773481U (en) * | 2019-10-22 | 2020-06-16 | 中冶赛迪工程技术股份有限公司 | Bottom electrode of DC arc furnace |
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| US5052018A (en) * | 1989-10-12 | 1991-09-24 | Deutsche Voest-Alpine Industrieanlagen Gmbh | Anode for a direct current arc furnace |
| US5371759A (en) * | 1991-09-12 | 1994-12-06 | Kortec Ag | D.C. furnace with a hearth electrode, hearth electrode and electrode block, as well as process for operating said furnace |
| US5255284A (en) * | 1991-11-04 | 1993-10-19 | Deutsch Voest-Alpine Industrieanlagenbau Gmbh | Anode for an electic arc furnace utilizing electrode segments |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776325A (en) * | 2020-06-10 | 2021-12-10 | 中冶宝钢技术服务有限公司 | Air cooling device for bottom electrode connecting bolt and installation and use method thereof |
| CN113776325B (en) * | 2020-06-10 | 2024-04-26 | 中冶宝钢技术服务有限公司 | Air cooling device for bottom electrode connecting bolt and mounting and using method thereof |
| CN112902674A (en) * | 2021-01-26 | 2021-06-04 | 中冶赛迪工程技术股份有限公司 | Air-cooled contact pin type bottom electrode |
| CN112902674B (en) * | 2021-01-26 | 2024-04-30 | 中冶赛迪工程技术股份有限公司 | Air-cooled contact pin type bottom electrode |
| CN115127353A (en) * | 2022-06-15 | 2022-09-30 | 中冶赛迪工程技术股份有限公司 | Long-life transverse air-cooled direct-current arc furnace bottom electrode |
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