CN103567425A - High-efficiency electromagnetic induction heating device for molten steel in tundish - Google Patents
High-efficiency electromagnetic induction heating device for molten steel in tundish Download PDFInfo
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- CN103567425A CN103567425A CN201310573499.0A CN201310573499A CN103567425A CN 103567425 A CN103567425 A CN 103567425A CN 201310573499 A CN201310573499 A CN 201310573499A CN 103567425 A CN103567425 A CN 103567425A
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Abstract
The invention relates to a high-efficiency electromagnetic induction heating device for molten steel in a tundish. The high-efficiency electromagnetic induction heating device comprises the tundish, a fireproof wall body, electromagnetic induction channels, an electromagnetic induction coil A, an electromagnetic induction coil B, a steel bearing cavity of the tundish and a power supply device. A steel body of a casting cavity and a steel body of the steel bearing cavity of the tundish are overall integrated; the inside of the steel bearing cavity and the inside of the casting cavity of the tundish are isolated through the fireproof wall body; the two electromagnetic induction coils are arranged in the fireproof wall body, and the electromagnetic induction channels are arranged on the two sides of the electromagnetic induction coils so that the steel bearing cavity and the casting cavity of the tundish can be communicated; the two electromagnetic induction coils are in series connection with the power supply device. According to the high-efficiency electromagnetic induction heating device for the molten steel in the tundish, a closed-loop iron core is arranged in the tundish, the two electromagnetic induction coils are in series connection with the iron core, as a result, the problem that an outer shell of the tundish emits heat due to flux leakage when an electromagnetic induction heating device is additionally arranged in the tundish is solved, and the problems of flow fields and insufficient space also can be solved.
Description
Technical field
The present invention relates to a kind of electromagnetic induction heater of efficient Metal in Tundish.
Background technology
Electromagnetic induction heater is set in tundish, realization is a kind of ideal molten steel temperature in tundish compensation and refining means to the temperature-compensating of molten steel and inclusion removal, especially this induction heating apparatus, in compensation liquid steel temperature, can effectively be removed the small-sized non-metallic inclusion below 50 μ.Because tundish shell is conduction and magnetic conductor, common induction heating apparatus need to be divided into tundish two bodies, and two bodies adopt flange form to connect, and flange connections adopts insulating materials isolation, the induced-current forming to be isolated in tundish shell, thus make can not generate heat in tundish use procedure.Do like this and certainly will cause tundish strength decreased, increase tundish maintenance cost and resistance to material use cost.And along with the continuous use of tundish under hot environment, the insulation meeting accelerated ageing of adpting flange, produces and causes potential danger eddy-current heating.Simultaneously for tundish narrow space, heating power and the efficiency of heating surface need higher, electromagnetic induction requires again less factory to the equipment impact of periphery simultaneously, installing and using tundish induction heating apparatus is a technical barrier, seeks that a kind of in small space, with induction heating apparatus, to carry out high-efficiency heating molten steel be the object of this patent for this reason.
Summary of the invention
The object of the present invention is to provide a kind of electromagnetic induction heater of efficient Metal in Tundish, this device by arranging 2 induction coils in a tundish, 2 induction coils are installed on same iron core simultaneously, but 2 induction coils around to opposite direction, the magnetic direction producing on iron core superposes in the same way.
The electromagnetic induction heater of a kind of efficient Metal in Tundish that the present invention proposes, by electric supply installation 1, tundish 2, electromagnetic induction coil A3, refractory material body of wall 4, electromagnetic induction coil B5, tundish holds steel chamber 6 and induction channels 7 forms, the mold cavity of tundish 2 is positioned at tundish and holds 6 belows, steel chamber, the mold cavity of tundish 2 and tundish hold between steel chamber 6 and directly connect by steel body, need not connect by flange, the benefit of bringing is like this intensity that has kept to greatest extent tundish, the increase that has reduced the distortion under tundish hot environment and produced refractory material use cost, eliminate the aging of insulation, these problems that induction heating apparatus brings have thoroughly been solved.The mold cavity of tundish 2 and tundish hold the inner refractory material body of wall 4 that passes through of steel body of 6 junctions, steel chamber and separate, the inside of refractory material body of wall 4 is provided with electromagnetic induction coil A3 and electromagnetic induction coil B5, the both sides of electromagnetic induction coil A3 and electromagnetic induction coil B5 are respectively provided with induction channels 7, and electromagnetic induction coil A3 and electromagnetic induction coil B5 are connected in series electric supply installation 1; Electromagnetic induction coil A3 and electromagnetic induction coil B5 are contained on same iron core and install, but electromagnetic induction coil A3 and electromagnetic induction coil B5 around to opposite direction, the magnetic direction producing on iron core superposes in the same way.
In the present invention, described induction channels 7 is 4 or 3, and when induction channels 7 is 3, the induction channels between electromagnetic induction coil A3 and electromagnetic induction coil B5 7 is 1.
In the present invention, described tundish 2 mold cavity, tundish hold inner resistance to material, electromagnetic induction coil A3 and the electromagnetic induction coil B5 of covering in steel chamber 6 and are arranged in the installing hole of refractory material body of wall, in installing hole, by sending into cold wind, to coil, carry out cooling.
Operation principle of the present invention is: molten steel is under coil action of alternating magnetic field, in the molten steel of 2 coils, induce respectively electric current, current direction superposes in center-aisle, and both sides channel current equidirectional, and cancel out each other on the contrary mutually because of the electromotive force producing around the metallic object of whole iron core, so tundish shell can generation current.
The present invention is by transforming tundish 2, increase tundish and hold steel chamber 6, electromagnetic induction coil A3 and electromagnetic induction coil B5, molten steel is when entering tundish from large packet flow and hold steel chamber 6, first by holding the buffering in steel chamber 6, make non-metallic inclusion floating, then molten steel flows into trough casting chamber 6 by the induction channels 7 of electromagnetic induction coil A3 and electromagnetic induction coil B5 both sides.Induction channels makes molten steel form two closed loops around electromagnetic induction coil A and electromagnetic induction coil B, under the effect of alternating electromagnetic field, there is electric current induction in closed loop molten steel, molten steel produces induced-current, the belt current molten steel of the induction channels of flowing through 7 produces electromagnetic force under magnetic fields, remove the non-metallic inclusion in molten steel, make molten steel before entering crystallizer, be purified refining treatment.Meanwhile, because electric energy conversion in electromagnetic induction process is heat energy, also make molten steel obtain heat energy and supplement, can realize the compensation of temperature.
The invention has the beneficial effects as follows: by arrange two around be arranged on a method on iron core to contrary electromagnetic induction heating coil in a completely whole tundish, completed and in tundish, set up induction heating apparatus, do not change again the rigidity intensity of tundish body, realize safely temperature-compensating and the fine non-metallic inclusion of molten steel and remove simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Number in the figure: 1 is that electric supply installation, 2 is that tundish, 3 is that electromagnetic induction coil A, 4 is that refractory material body of wall, 5 is that electromagnetic induction coil B, 6 is induction channels for tundish holds steel chamber, 7.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment 1:
As shown in Figure 1, this device is by electric supply installation 1, tundish 2, electromagnetic induction coil A3, refractory material body of wall 4, electromagnetic induction coil B5, tundish holds steel chamber 6, induction channels 7 forms, wherein the mold cavity of tundish 2 and tundish hold steel chamber 6 for integral type steel body, need not connect by flange, thereby also need not insulating materials, the mold cavity of tundish 2 and tundish hold between 6 inside, steel chamber and separate with refractory material body of wall 4, electromagnetic induction coil A3 and electromagnetic induction coil B5 are established in the inside of refractory material body of wall 4, the both sides of two electromagnetic induction coils respectively arrange induction channels 7(according to tundish real space and molten steel flow process situation, induction channels between two coils can two, also can share one), electromagnetic induction coil A3 and electromagnetic induction coil B5 series connection are powered by electric supply installation 1.
The course of work of the present invention is as follows: molten steel flows into tundish from ladle by the mouth of a river and holds steel chamber 6, molten steel holds steel chamber 6 at tundish and obtains buffering inclusion floating, molten steel flows out from the induction channels 7 of electromagnetic induction coil A3 and electromagnetic induction coil B5 both sides simultaneously, respectively at electromagnetic induction coil A3 and electromagnetic induction coil B5 molten steel formation around electric current, electric energy conversion is molten steel heat energy, the eddy-current heating of realization to molten steel, simultaneously, flow through the belt current molten steel of induction channels 7, under the effect in magnetic field, produce pinch effect, fine non-metallic inclusion in molten steel is separated fast with metallic solution, then composition is pure, the molten steel of temperature stabilization flows into the tundish 2 casting mouths of a river, realize the production of high-quality molten steel.
Claims (2)
1. the electromagnetic induction heater of a Metal in Tundish, it is characterized in that by electric supply installation (1), tundish (2), electromagnetic induction coil A (3), refractory material body of wall (4), electromagnetic induction coil B (5), tundish holds steel chamber (6) and induction channels (7) forms, the mold cavity of tundish (2) is positioned at tundish and holds below, steel chamber (6), the mold cavity of tundish (2) and tundish hold between steel chamber (6) and directly connect by steel body, the mold cavity of tundish (2) and tundish hold the inner refractory material body of wall (4) that passes through of steel body of junction, steel chamber (6) and separate, the inside of refractory material body of wall (4) is provided with electromagnetic induction coil A (3) and electromagnetic induction coil B (5), the both sides of electromagnetic induction coil A (3) and electromagnetic induction coil B (5) are respectively provided with induction channels (7), electromagnetic induction coil A (3) and electromagnetic induction coil B (5) are connected in series electric supply installation (1), electromagnetic induction coil A (3) and electromagnetic induction coil B (5) are contained on same iron core and install, but electromagnetic induction coil A (3) and electromagnetic induction coil B (5) around to opposite direction, the magnetic direction producing on iron core superposes in the same way.
2. the electromagnetic induction heater of a kind of Metal in Tundish according to claim 1, it is characterized in that described induction channels (7) is 4 or 3, when induction channels (7) is 3, the induction channels (7) being positioned between electromagnetic induction coil A (3) and electromagnetic induction coil B (5) is 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310573499.0A CN103567425A (en) | 2013-11-18 | 2013-11-18 | High-efficiency electromagnetic induction heating device for molten steel in tundish |
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| CN201310573499.0A CN103567425A (en) | 2013-11-18 | 2013-11-18 | High-efficiency electromagnetic induction heating device for molten steel in tundish |
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| CN201310573499.0A Pending CN103567425A (en) | 2013-11-18 | 2013-11-18 | High-efficiency electromagnetic induction heating device for molten steel in tundish |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104185325A (en) * | 2013-05-20 | 2014-12-03 | 松下电器产业株式会社 | Induction heating device |
| CN104588629A (en) * | 2015-01-22 | 2015-05-06 | 无锡巨力重工股份有限公司 | Dual-purpose external heating channel type intermediate tank structure |
| CN105149560A (en) * | 2015-10-23 | 2015-12-16 | 东北大学 | Tundish induction heating device having function of removing occluded foreign substances |
| CN106735157A (en) * | 2016-12-21 | 2017-05-31 | 东北大学 | A kind of multithread curved channel sensing heating tundish and heating means |
| CN108856687A (en) * | 2018-08-29 | 2018-11-23 | 上海东震冶金工程技术有限公司 | A kind of multithread square billet induction heating tundish |
| CN110607418A (en) * | 2019-09-26 | 2019-12-24 | 江苏省沙钢钢铁研究院有限公司 | Wire rod for deep drawing and molten steel smelting method thereof |
| CN111025204A (en) * | 2018-10-09 | 2020-04-17 | 宝钢特钢有限公司 | Magnetic field measuring device and method for electromagnetic tundish |
| CN114713807A (en) * | 2021-09-30 | 2022-07-08 | 上海东震冶金工程技术有限公司 | Slab continuous casting induction heating tundish |
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| CN2841198Y (en) * | 2005-11-29 | 2006-11-29 | 宝山钢铁股份有限公司 | Continuous casting tundish with centrifugal rotation |
| CN201768886U (en) * | 2010-07-26 | 2011-03-23 | 上海东震冶金工程技术有限公司 | Tundish molten steel magnetomotive refining device |
| CN102009143A (en) * | 2010-12-29 | 2011-04-13 | 北京科技大学 | Channel induction heating device of compact cross-shaped tundish |
| CN201922007U (en) * | 2011-01-05 | 2011-08-10 | 上海东震冶金工程技术有限公司 | Tundish electromagnetic induction device arranged at side edges of induction coil and passageways |
| CN201976278U (en) * | 2011-01-05 | 2011-09-14 | 上海东震冶金工程技术有限公司 | Tundish electromagnetic induction device with horizontally placed induction passages |
| CN202052920U (en) * | 2011-04-08 | 2011-11-30 | 上海东震冶金工程技术有限公司 | Electromagnetic induction heating apparatus for large capacity tundish molten steel |
| CN202070757U (en) * | 2010-12-31 | 2011-12-14 | 无锡巨力重工股份有限公司 | Improved middle tank electromagnetic induction smelting device |
| CN202894306U (en) * | 2012-11-29 | 2013-04-24 | 涂国坚 | Horizontal continuous casting electromagnetic sensing heat insulation tundish |
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2013
- 2013-11-18 CN CN201310573499.0A patent/CN103567425A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2841198Y (en) * | 2005-11-29 | 2006-11-29 | 宝山钢铁股份有限公司 | Continuous casting tundish with centrifugal rotation |
| CN201768886U (en) * | 2010-07-26 | 2011-03-23 | 上海东震冶金工程技术有限公司 | Tundish molten steel magnetomotive refining device |
| CN102009143A (en) * | 2010-12-29 | 2011-04-13 | 北京科技大学 | Channel induction heating device of compact cross-shaped tundish |
| CN202070757U (en) * | 2010-12-31 | 2011-12-14 | 无锡巨力重工股份有限公司 | Improved middle tank electromagnetic induction smelting device |
| CN201922007U (en) * | 2011-01-05 | 2011-08-10 | 上海东震冶金工程技术有限公司 | Tundish electromagnetic induction device arranged at side edges of induction coil and passageways |
| CN201976278U (en) * | 2011-01-05 | 2011-09-14 | 上海东震冶金工程技术有限公司 | Tundish electromagnetic induction device with horizontally placed induction passages |
| CN202052920U (en) * | 2011-04-08 | 2011-11-30 | 上海东震冶金工程技术有限公司 | Electromagnetic induction heating apparatus for large capacity tundish molten steel |
| CN202894306U (en) * | 2012-11-29 | 2013-04-24 | 涂国坚 | Horizontal continuous casting electromagnetic sensing heat insulation tundish |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104185325A (en) * | 2013-05-20 | 2014-12-03 | 松下电器产业株式会社 | Induction heating device |
| CN104185325B (en) * | 2013-05-20 | 2016-04-20 | 松下知识产权经营株式会社 | Induction heating equipment |
| CN104588629A (en) * | 2015-01-22 | 2015-05-06 | 无锡巨力重工股份有限公司 | Dual-purpose external heating channel type intermediate tank structure |
| CN105149560A (en) * | 2015-10-23 | 2015-12-16 | 东北大学 | Tundish induction heating device having function of removing occluded foreign substances |
| CN106735157A (en) * | 2016-12-21 | 2017-05-31 | 东北大学 | A kind of multithread curved channel sensing heating tundish and heating means |
| CN108856687A (en) * | 2018-08-29 | 2018-11-23 | 上海东震冶金工程技术有限公司 | A kind of multithread square billet induction heating tundish |
| CN111025204A (en) * | 2018-10-09 | 2020-04-17 | 宝钢特钢有限公司 | Magnetic field measuring device and method for electromagnetic tundish |
| CN111025204B (en) * | 2018-10-09 | 2021-11-12 | 宝武特种冶金有限公司 | Magnetic field measuring device and method for electromagnetic tundish |
| CN110607418A (en) * | 2019-09-26 | 2019-12-24 | 江苏省沙钢钢铁研究院有限公司 | Wire rod for deep drawing and molten steel smelting method thereof |
| CN110607418B (en) * | 2019-09-26 | 2021-10-22 | 江苏省沙钢钢铁研究院有限公司 | Wire rod for deep drawing and molten steel smelting method thereof |
| CN114713807A (en) * | 2021-09-30 | 2022-07-08 | 上海东震冶金工程技术有限公司 | Slab continuous casting induction heating tundish |
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Application publication date: 20140212 |