CN111774543A - Continuous casting metallurgy stirrer - Google Patents
Continuous casting metallurgy stirrer Download PDFInfo
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- CN111774543A CN111774543A CN202010283384.8A CN202010283384A CN111774543A CN 111774543 A CN111774543 A CN 111774543A CN 202010283384 A CN202010283384 A CN 202010283384A CN 111774543 A CN111774543 A CN 111774543A
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- magnetic
- stirrer
- continuous casting
- yoke
- pole
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/114—Treating the molten metal by using agitating or vibrating means
- B22D11/115—Treating the molten metal by using agitating or vibrating means by using magnetic fields
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses a continuous casting metallurgy stirrer which comprises a rotary driving device, wherein one side of the rotary driving device is connected with an iron core, the iron core is provided with a magnetic yoke, a plurality of magnetic systems are arranged in the magnetic yoke, and the magnetic systems are connected with the magnetic yoke; the magnetic system comprises a soft magnet, a coil is wound on the outer side of the soft magnet, one side of the soft magnet is connected with a magnetic pole, and two ends of the magnetic pole are connected with a plurality of hard magnets. Through this mixer, it is good and can change magnetic field direction to have magnetic field intensity, has improved life, and energy-conserving magnetic field utilization ratio is high, has improved the security, and is energy-conserving, has improved the metallurgical effect of casting blank, has improved the casting blank quality.
Description
Technical Field
The invention relates to the technical field of metallurgical stirrers, in particular to a continuous casting metallurgical stirrer.
Background
With the development of the steel industry, the requirement on the quality of a casting blank is higher and higher. The electromagnetic stirring casting blank has a certain metallurgical effect and is one of effective means for improving the casting blank. However, the service life of electromagnetic stirrers is more and more demanding.
At present, the main electromagnetic stirrers have a cooling water external direct cooling type and a copper pipe internal cooling type. But the service life is not high, when the cooling water external direct cooling type stirrer runs, the electromagnetic wire coil is always electrified, the electromagnetic wire can be electrolyzed, the insulation is reduced very quickly, and the stirrer is generally used for about 1 year. When the stirrer with the copper pipe internally cooled runs, the copper pipe coil is also always electrified, the manufacturing process is complex, the problems of aging, water seepage and water leakage are easy to occur on the water path joint of the coil, the insulation is reduced, and the service life is short.
The principle of the electromagnetic stirrer is similar to that of an asynchronous motor, the number of turns of a coil of the stirrer is related to the current passing through the magnetic field formed in the inner cylinder of the stirrer, and during movement, large current acts all the time, so that the stirrer generates large heat, and a cooling system is generally required to be equipped. The power consumption and the energy consumption of the electromagnetic stirrer are very large.
Disclosure of Invention
In view of the above technical problems in the related art, the present invention provides a continuous casting metallurgical mixer, which can overcome the above disadvantages in the prior art.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
a continuous casting metallurgy stirrer comprises a rotary driving device, wherein an iron core is connected to one side of the rotary driving device, a magnetic yoke is arranged on the iron core, a plurality of magnetic systems are arranged in the magnetic yoke, and the magnetic systems are connected with the magnetic yoke; the magnetic system comprises a soft magnet, a coil is wound on the outer side of the soft magnet, a magnetic pole is connected to one side of the soft magnet, and a plurality of hard magnets are connected to two ends of the magnetic pole.
Furthermore, in each magnetic system, the number of the hard magnets is two, and the two hard magnets are respectively distributed at two ends of the magnetic pole.
Furthermore, the magnetic systems are symmetrical pairwise and have the same structure.
Furthermore, the soft magnetic, the hard magnetic and the magnetic poles are connected through pins or in interference fit.
Further, the magnetic yoke is circular.
Further, the polarity of the soft magnetic N-pole and S-pole may be changed.
Further, the magnetic poles may induce magnetism.
The invention has the beneficial effects that: through this mixer, it is good and can change magnetic field direction to have magnetic field intensity, has improved life, and energy-conserving magnetic field utilization ratio is high, has improved the security, and is energy-conserving, has improved the metallurgical effect of casting blank, has improved the casting blank quality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a top view of a continuous casting metallurgical mixer according to an embodiment of the present invention;
FIG. 2 is a magnetic diagram of a magnetic system of a continuous casting metallurgical mixer in use according to an embodiment of the present invention;
FIG. 3 is a magnetic diagram of a magnetic system of a continuous casting metallurgical mixer according to an embodiment of the present invention when not in use;
FIG. 4 is a magnetic force diagram of a continuous casting metallurgical mixer in use according to an embodiment of the present invention;
FIG. 5 is a magnetic field diagram of a continuous casting metallurgical mixer according to an embodiment of the present invention when not in use;
FIG. 6 is a front view of a continuous casting metallurgical mixer according to an embodiment of the present invention;
FIG. 7 is a 3D view of a continuous casting metallurgical mixer according to an embodiment of the present invention;
FIG. 8 is an exploded view of a continuous casting metallurgical mixer according to an embodiment of the present invention;
in the figure: 1. magnetic system, 2, magnetic yoke, 3, rotation driving device, 4, casting blank, 5, soft magnet, 6, coil, 7, hard magnet, 8 and magnetic pole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
As shown in fig. 1 to 8, a continuous casting metallurgical mixer according to an embodiment of the present invention includes: the magnetic driving device comprises a rotation driving device 3, wherein one side of the rotation driving device 3 is connected with an iron core, a magnetic yoke 2 is arranged on the iron core, a plurality of magnetic systems 1 are arranged in the magnetic yoke 2, and the magnetic systems 1 are connected with the magnetic yoke 2; the magnetic system 1 comprises a soft magnet 5, a coil 6 is wound on the outer side of the soft magnet 5, a magnetic pole 8 is connected to one side of the soft magnet 5, and a plurality of hard magnets 7 are connected to two ends of the magnetic pole 8.
In an embodiment of the present invention, in each of the magnetic systems 1, two hard magnets 7 are distributed at two ends of the magnetic pole 8.
In one embodiment of the present invention, the magnetic systems 1 are symmetric two by two and have the same structure.
In a specific embodiment of the invention, the soft magnet 5, the hard magnet 7 and the magnetic pole 8 are connected through pins or in an interference fit.
In a particular embodiment of the invention, the yoke 2 is circular.
In a particular embodiment of the invention the polarity of the N-pole and S-pole of the soft magnetic 5 may be changed.
In one embodiment of the invention, the magnetic pole 8 can induce magnetism.
In a specific embodiment of the present invention, the coil 6 is disposed outside the soft magnet 5, and the NS polarity of the soft magnet 5 is changed by the energizing direction of the pulse current through the coil 6.
In one embodiment of the invention, the magnetic system 1 polarity NS passes through the center of the stirrer.
In a particular embodiment of the invention, the passing of a pulse current of the coil 6 in the opposite direction changes the NS polarity of the soft magnetic 5, using the magnetic system 1 with a polarity NS passing through the centre of the stirrer without a magnetic field inside the stirrer.
In order to facilitate understanding of the above-described aspects of the present invention, the above-described aspects of the present invention will be described in detail below.
As shown in fig. 1 to 8, a stirrer for continuous casting metallurgy according to an embodiment of the present invention includes a plurality of magnetic systems 1, a yoke 2 and a rotation driving device 3, wherein the magnetic systems 1 are installed oppositely. The arrangement of the NS pole of the hard magnet 7 is as per fig. 2, fig. 3. The NS pole of the soft magnet 5 is arranged as shown in fig. 2 and fig. 3 (the polarity of the soft magnet can be changed to the NS pole by the current of the coil 6, the NS pole is supplied by a positive current, and the SN pole is supplied by a reverse current). The hard magnet 7, the soft magnet 5 and the magnetic pole 8 can be connected through pins or directly in interference fit. The magnetic system 1 comprises a soft magnet 5, a coil 6, a hard magnet 7 and a magnetic pole 8.
When in use, the magnetic direction of the soft magnet 5 is changed by the instant action of the coil 6, the pair of magnetic systems 1 are opposite to each other in magnetic path, and a magnetic field is formed in the middle of the stirrer. And then the stirrer is rotated by the rotation driving mechanism, so that the stirrer has a rotating magnetic field, the casting blank 4 can be stirred, and the quality of the casting blank 4 is improved.
But when not in use, the magnetic direction of the soft magnetic 5 is changed again by the momentary action of the coil 6. Thus, no magnetic field passes through the middle of the stirrer in the pair of magnetic systems 1, so that when the stirrer is idle, the middle has no field intensity, and the safety performance is high.
In conclusion, by means of the technical scheme, the stirrer has the advantages that the magnetic field intensity is good, the direction of the magnetic field can be changed, the service life is prolonged, the energy-saving magnetic field utilization rate is high, the safety is improved, the energy is saved, the metallurgical effect of the casting blank 4 is improved, and the quality of the casting blank 4 is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A continuous casting metallurgical mixer, comprising: the rotary driving device (3) is characterized in that one side of the rotary driving device (3) is connected with an iron core, a magnetic yoke (2) is arranged on the iron core, a plurality of magnetic systems (1) are arranged in the magnetic yoke (2), and the magnetic systems (1) are connected with the magnetic yoke (2); magnetism is (1) including soft magnetism (5), coil (6) have been twined in soft magnetism (5) outside, soft magnetism (5) one side is connected with magnetic pole (8), magnetic pole (8) both ends are connected with a plurality of hard magnetism (7).
2. A continuous casting metallurgical stirrer according to claim 1, characterized in that in each of said magnetic systems (1), there are two of said hard magnets (7), respectively distributed at the ends of said magnetic poles (8).
3. A stirrer according to claim 1, wherein the magnetic systems (1) are symmetrical in pairs and identical in structure.
4. A continuous casting metallurgical stirrer according to claim 1, characterized in that the soft (5), hard (7) and magnetic poles (8) are pinned or interference fit.
5. A continuous casting metallurgical stirrer according to claim 1, characterized in that the yoke (2) is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010283384.8A CN111774543A (en) | 2020-04-13 | 2020-04-13 | Continuous casting metallurgy stirrer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010283384.8A CN111774543A (en) | 2020-04-13 | 2020-04-13 | Continuous casting metallurgy stirrer |
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| Publication Number | Publication Date |
|---|---|
| CN111774543A true CN111774543A (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010283384.8A Pending CN111774543A (en) | 2020-04-13 | 2020-04-13 | Continuous casting metallurgy stirrer |
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| CN (1) | CN111774543A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2834305A1 (en) * | 1978-08-03 | 1980-02-14 | Aeg Elotherm Gmbh | Electromagnetic stirrer for molten metal in continuous casting plant - where magnet cores and coils can be adjusted radially to suit shape and size of cast billet |
| JPH05318064A (en) * | 1992-05-13 | 1993-12-03 | Nippon Steel Corp | Apparatus and method for continuously casting molten metal |
| JPH08155610A (en) * | 1994-12-09 | 1996-06-18 | Nippon Steel Corp | Method for continuously casting molten metal |
| JPH10146650A (en) * | 1996-11-14 | 1998-06-02 | Kenzo Takahashi | Aluminum melting furnace with stirring device, molten aluminum stirring device and method for stirring molten aluminum |
| JPH10230349A (en) * | 1997-02-20 | 1998-09-02 | Yaskawa Electric Corp | Electromagnetic stirring device |
| CN203479041U (en) * | 2013-09-12 | 2014-03-12 | 山东在天金属科技股份有限公司 | Electromagnetic stirrer |
| CN108526424A (en) * | 2018-04-09 | 2018-09-14 | 上海大学 | A kind of magnetic field generator of double frequency electromagnetic agitation |
| CN110102220A (en) * | 2019-05-06 | 2019-08-09 | 上海交通大学 | Permanent magnet mixing plant and melt preparation method suitable for melt preparation |
| CN110252975A (en) * | 2019-08-01 | 2019-09-20 | 上海大学 | Electromagnetic agitation generating means, method and the application of compound time-varying magnetic field |
-
2020
- 2020-04-13 CN CN202010283384.8A patent/CN111774543A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2834305A1 (en) * | 1978-08-03 | 1980-02-14 | Aeg Elotherm Gmbh | Electromagnetic stirrer for molten metal in continuous casting plant - where magnet cores and coils can be adjusted radially to suit shape and size of cast billet |
| JPH05318064A (en) * | 1992-05-13 | 1993-12-03 | Nippon Steel Corp | Apparatus and method for continuously casting molten metal |
| JPH08155610A (en) * | 1994-12-09 | 1996-06-18 | Nippon Steel Corp | Method for continuously casting molten metal |
| JPH10146650A (en) * | 1996-11-14 | 1998-06-02 | Kenzo Takahashi | Aluminum melting furnace with stirring device, molten aluminum stirring device and method for stirring molten aluminum |
| JPH10230349A (en) * | 1997-02-20 | 1998-09-02 | Yaskawa Electric Corp | Electromagnetic stirring device |
| CN203479041U (en) * | 2013-09-12 | 2014-03-12 | 山东在天金属科技股份有限公司 | Electromagnetic stirrer |
| CN108526424A (en) * | 2018-04-09 | 2018-09-14 | 上海大学 | A kind of magnetic field generator of double frequency electromagnetic agitation |
| CN110102220A (en) * | 2019-05-06 | 2019-08-09 | 上海交通大学 | Permanent magnet mixing plant and melt preparation method suitable for melt preparation |
| CN110252975A (en) * | 2019-08-01 | 2019-09-20 | 上海大学 | Electromagnetic agitation generating means, method and the application of compound time-varying magnetic field |
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Application publication date: 20201016 |
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