CN114559024B - Electromagnetic induction heating tundish transformation design method - Google Patents
Electromagnetic induction heating tundish transformation design method Download PDFInfo
- Publication number
- CN114559024B CN114559024B CN202210060018.5A CN202210060018A CN114559024B CN 114559024 B CN114559024 B CN 114559024B CN 202210060018 A CN202210060018 A CN 202210060018A CN 114559024 B CN114559024 B CN 114559024B
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- CN
- China
- Prior art keywords
- tundish
- trunnion
- induction heating
- electromagnetic induction
- distance
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 24
- 230000005674 electromagnetic induction Effects 0.000 title claims abstract description 19
- 230000009466 transformation Effects 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 230000005484 gravity Effects 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 230000006698 induction Effects 0.000 abstract description 16
- 238000009749 continuous casting Methods 0.000 abstract description 6
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/005—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like with heating or cooling means
- B22D41/01—Heating means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention relates to the field of ferrous metallurgical equipment, and discloses a method for reconstructing and designing an electromagnetic induction heating tundish, wherein three trunnions are designed on a new induction tundish, and two guide grooves are designed on a tundish car, so that two trunnions of an original tundish can be positioned on one guide groove and a supporting seat respectively, two trunnions of the new induction tundish, which are positioned on the outer side, can be positioned on the other guide groove and the supporting seat respectively, and the distance from the trunnion of the new induction tundish, which is positioned in the middle, to one trunnion positioned on the outer side is equal to the distance between the two trunnions of the original tundish. The invention successfully solves the compatibility problem of the new induction tundish after transformation and the old tundish on the tundish car and the tundish tipping device, effectively utilizes the old equipment, saves the equipment transformation cost, has strong practicability and has wide popularization value in the related transformation engineering of the tundish in the continuous casting workshop of the domestic steel mill.
Description
Technical Field
The invention relates to the field of ferrous metallurgical equipment, in particular to a method for modifying and designing an electromagnetic induction heating tundish.
Background
In the continuous casting process of producing high-quality steel, the superheat degree of molten steel needs to be strictly controlled, and stable low-superheat degree casting is realized. The tundish induction heating device can keep the temperature fluctuation of molten steel in the tundish in a very narrow range, realize constant-temperature casting of continuous casting, and achieve the purposes of improving the quality of continuous casting blanks and reducing the cost of the production process.
The electromagnetic induction heating upgrading transformation of the existing tundish becomes an important means for improving the production capacity of high-quality steel in various large steel plants. From the standpoint of production costs, steel mills still cast with old tundish (fig. 1) when producing common grades, which requires that the trunnion positions of the old and new tundish should be adapted to the tundish car at the same time.
Disclosure of Invention
Aiming at the problem of compatibility of a tundish car and a tundish tipping device with new and old tundish in the engineering of electromagnetic heating upgrading and reconstruction of the old tundish, the invention aims to provide an electromagnetic induction heating tundish reconstruction design method.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The electromagnetic induction heating tundish reconstruction design method includes the steps that three trunnions are designed on a new induction tundish, two guide grooves are designed on a tundish car, two trunnions of an original tundish can be located on one guide groove and a support seat respectively, two trunnions of the new induction tundish located on the outer side can be located on the other guide groove and the support seat respectively, and the distance from the trunnion of the new induction tundish located on the middle to the trunnion located on the outer side is equal to the distance between the two trunnions of the original tundish.
Further, the new inductive tundish impact area adds an electromagnetic heating core.
Further, the capacity of the new induction tundish is expanded to be the same as that of the original tundish, and the gravity center of molten steel in the new tundish after expansion moves towards the impact area.
In one embodiment of the invention, the center of gravity of the new induction tundish is moved a distance of 600-800 mm in the direction of the impact zone.
In one embodiment of the invention, the distance between two trunnions of the old tundish is 950mm, a guide groove A and a guide groove B with the distance of 340mm are designed on the tundish car, a support seat C is arranged on the right side of the guide groove B, the distance between the support seat C and the guide groove B is 950mm, the new induction tundish is designed with a trunnion p, a trunnion q and a trunnion r, the distance between the trunnion r and the trunnion p is 950mm, when the tundish car is in place, the trunnion p is arranged on the guide groove A, the trunnion q is arranged on the support seat C, and the trunnion r has no support surface.
According to the electromagnetic induction heating tundish designed by the method, when a new tundish is turned over on the tundish tipping device, two trunnions with the same distance as the two trunnions of the original tundish are clamped.
Compared with the prior art, the invention successfully solves the compatibility problem of the new induction tundish after transformation and the old tundish on the tundish car and the tundish tipping device, effectively utilizes the old equipment, saves the equipment transformation cost, has strong practicability and has wide popularization value in the related transformation engineering of the tundish in the continuous casting workshop of the domestic steel mill.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of an old tundish structure;
FIG. 2 is a schematic diagram of a new induction tundish structure;
FIG. 3 is a diagram of an old tundish coordination;
Fig. 4 is a diagram of a new inductive tundish coordination.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
Taking transformation of a certain steel tundish as an example, in the transformation design, as the electromagnetic heating iron core is added in the new induction tundish impact area 1, the position of the newly added induction iron core occupies the inner cavity space of the original tundish, and in order to ensure that the capacity of the tundish is unchanged, the tundish must be subjected to expansion design. As shown in figure 2, the gravity center 2 of the molten steel in the new tundish after expansion moves towards the impact zone 1, and the gravity center of the modified tundish moves towards the impact zone by a distance of 600-800 mm in addition to the weight of the electromagnetic iron core of approximately 10 tons.
As can be seen from FIG. 2, if the original trunnion position dimension L1950mm is kept unchanged, the center of gravity of the new tundish is beyond the position between the two trunnions, and the tundish is easy to tip over during the process of casting steel and maintaining, so that safety accidents are caused. When the tundish is turned over by clamping two trunnions on the original tipping equipment, the tipping moment arm is increased, the tipping capability of the original driving system is insufficient, and meanwhile, the tipping profile is increased, so that the tipping profile possibly interferes with surrounding equipment and civil engineering, and therefore, the tipping moment arm is required to be updated.
In order to solve the compatibility problem of new and old tundish on a tundish car and a tipping table, the invention relates to an electromagnetic induction heating tundish reconstruction design method. As shown in fig. 3 and 4, the broken line is the shape of the transformation design scheme of the tundish car, A, B is a guide groove, and C is a fixed supporting seat.
The distance L1 between two trunnions of the old tundish is 950mm, a guide groove A and a guide groove B with the interval L2 of 340mm are designed on the tundish car, a supporting seat C is arranged on the right side of the guide groove B, the interval between the supporting seat C and the guide groove B is also L1 of 950mm, a new induction tundish is designed with a trunnion p, a trunnion q and a trunnion r, the distance between the trunnion r and the trunnion p is L1 of 950mm, when the tundish car is in place, the trunnion p is arranged in the guide groove A, the trunnion q is arranged on the supporting seat C, and the trunnion r has no supporting surface.
As shown in fig. 3, the two trunnions of the old tundish are respectively positioned in the B guide groove and the C support seat of the tundish car, and the distance L1 between B and C is 950mm; as shown in fig. 4, the new tundish is designed with three trunnions p, q and r, when the tundish car is in place, the trunnion p is installed in the guide groove a, the trunnion q is installed in the support seat C, and the trunnion r has no support surface. The center of gravity of the new tundish is positioned between the supporting trunnions p and q, so that the hidden danger of tipping is eliminated, and the requirement of safe production is met. The distance from the trunnion r to the trunnion p is equal to the distance between the two trunnions of the original tundish, and when the tundish is overturned by the tipping platform, the trunnions p and r are clamped, so that the tipping moment can be effectively reduced besides adapting to the assembly size of the original tipping platform, and the original power system does not need to be updated.
The invention successfully solves the compatibility problem of the transformed tundish and the old tundish on the tundish car and the tundish tipping device, effectively utilizes the old equipment, saves the equipment transformation cost, has strong practicability and has wide popularization value in the related transformation engineering of the tundish in the continuous casting workshop of the domestic steel mill.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the claims without affecting the spirit of the invention.
Claims (5)
1. The ladle car and the electromagnetic induction heating tundish are improved and designed, the capacity of the electromagnetic induction heating tundish is the same as that of the original tundish, and the gravity center of molten steel in the electromagnetic induction heating tundish after capacity expansion moves towards an impact area.
2. The tundish car and electromagnetic induction heating tundish reconstruction design method according to claim 1, wherein an electromagnetic heating iron core is added in the electromagnetic induction heating tundish impact area.
3. The tundish car and the electromagnetic induction heating tundish reconstruction design method according to claim 1, wherein the gravity center of the electromagnetic induction heating tundish moves by a distance of 600-800 mm towards the impact area.
4. The tundish car and the electromagnetic induction heating tundish reconstruction design method according to claim 1, wherein the distance between two trunnions of the original tundish is 950mm, the distance between a guide groove A and a guide groove B is 340mm, the distance between a supporting seat and the guide groove B is 950mm, the distance between a trunnion r and a trunnion p is 950mm, when the tundish car is in place, the trunnion p is arranged in the guide groove A, the trunnion q is arranged on the supporting seat, and the trunnion r has no supporting surface.
5. The tundish car and the electromagnetic induction heating tundish transformation design method according to claim 4, wherein the trunnion p and the trunnion r are clamped when the electromagnetic induction heating tundish is turned over on the tundish tipping device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210060018.5A CN114559024B (en) | 2022-01-19 | 2022-01-19 | Electromagnetic induction heating tundish transformation design method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210060018.5A CN114559024B (en) | 2022-01-19 | 2022-01-19 | Electromagnetic induction heating tundish transformation design method |
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| Publication Number | Publication Date |
|---|---|
| CN114559024A CN114559024A (en) | 2022-05-31 |
| CN114559024B true CN114559024B (en) | 2024-04-30 |
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| CN202210060018.5A Active CN114559024B (en) | 2022-01-19 | 2022-01-19 | Electromagnetic induction heating tundish transformation design method |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57171568A (en) * | 1981-04-14 | 1982-10-22 | Kawasaki Steel Corp | Outflowing method for molten metal in ladle |
| JPS60244452A (en) * | 1984-05-18 | 1985-12-04 | Kawasaki Steel Corp | Supporting device for maintaining induction heater of vessel for holding molten metal |
| CN2103390U (en) * | 1991-07-09 | 1992-05-06 | 孙安保 | Dc electric foundry ladle |
| JPH1034291A (en) * | 1996-07-24 | 1998-02-10 | Sumitomo Heavy Ind Ltd | Tundish maintenance device of continuous casting equipment |
| JP2000202598A (en) * | 1999-01-08 | 2000-07-25 | Nippon Steel Corp | Tundish car |
| CN200967085Y (en) * | 2006-11-09 | 2007-10-31 | 湖南华菱湘潭钢铁有限公司 | Tilting device covered by the caster and used in the middle of the caster |
| JP2012091201A (en) * | 2010-10-27 | 2012-05-17 | Sumitomo Heavy Industries Techno-Fort Co Ltd | Tundish car |
| CN203484657U (en) * | 2013-08-29 | 2014-03-19 | 武汉大西洋钢铁技术研发有限责任公司 | Dual-purpose tundish tip-over device |
| CN205838298U (en) * | 2016-04-18 | 2016-12-28 | 新疆八一钢铁股份有限公司 | The continuous casting production lifting structure improved |
| CN109202053A (en) * | 2017-06-29 | 2019-01-15 | 泰州市科美伦机电有限公司 | A kind of ladle tilting facility |
| CN209161323U (en) * | 2018-09-13 | 2019-07-26 | 郑州大学 | A kind of steel ladle trunnion lifting contraposition identification device |
| CN212042642U (en) * | 2020-04-03 | 2020-12-01 | 中天钢铁集团有限公司 | Continuous casting ladle car with ladle positioning device in molten steel |
-
2022
- 2022-01-19 CN CN202210060018.5A patent/CN114559024B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57171568A (en) * | 1981-04-14 | 1982-10-22 | Kawasaki Steel Corp | Outflowing method for molten metal in ladle |
| JPS60244452A (en) * | 1984-05-18 | 1985-12-04 | Kawasaki Steel Corp | Supporting device for maintaining induction heater of vessel for holding molten metal |
| CN2103390U (en) * | 1991-07-09 | 1992-05-06 | 孙安保 | Dc electric foundry ladle |
| JPH1034291A (en) * | 1996-07-24 | 1998-02-10 | Sumitomo Heavy Ind Ltd | Tundish maintenance device of continuous casting equipment |
| JP2000202598A (en) * | 1999-01-08 | 2000-07-25 | Nippon Steel Corp | Tundish car |
| CN200967085Y (en) * | 2006-11-09 | 2007-10-31 | 湖南华菱湘潭钢铁有限公司 | Tilting device covered by the caster and used in the middle of the caster |
| JP2012091201A (en) * | 2010-10-27 | 2012-05-17 | Sumitomo Heavy Industries Techno-Fort Co Ltd | Tundish car |
| CN203484657U (en) * | 2013-08-29 | 2014-03-19 | 武汉大西洋钢铁技术研发有限责任公司 | Dual-purpose tundish tip-over device |
| CN205838298U (en) * | 2016-04-18 | 2016-12-28 | 新疆八一钢铁股份有限公司 | The continuous casting production lifting structure improved |
| CN109202053A (en) * | 2017-06-29 | 2019-01-15 | 泰州市科美伦机电有限公司 | A kind of ladle tilting facility |
| CN209161323U (en) * | 2018-09-13 | 2019-07-26 | 郑州大学 | A kind of steel ladle trunnion lifting contraposition identification device |
| CN212042642U (en) * | 2020-04-03 | 2020-12-01 | 中天钢铁集团有限公司 | Continuous casting ladle car with ladle positioning device in molten steel |
Non-Patent Citations (1)
| Title |
|---|
| 安钢2号连铸机中间包车的改造;邓红, 张志忠, 朱绪征, 柴学旺, 常志刚, 万红军;河南冶金(第05期);38-39 * |
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| Publication number | Publication date |
|---|---|
| CN114559024A (en) | 2022-05-31 |
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