CN221109829U - Electromagnetic mixing device - Google Patents
Electromagnetic mixing device Download PDFInfo
- Publication number
- CN221109829U CN221109829U CN202321594823.2U CN202321594823U CN221109829U CN 221109829 U CN221109829 U CN 221109829U CN 202321594823 U CN202321594823 U CN 202321594823U CN 221109829 U CN221109829 U CN 221109829U
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- China
- Prior art keywords
- magnetic field
- iron core
- rotating magnetic
- coil
- salient poles
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 59
- 238000004804 winding Methods 0.000 claims abstract description 5
- 239000004020 conductor Substances 0.000 claims description 8
- 238000003475 lamination Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000005266 casting Methods 0.000 abstract description 4
- 238000002425 crystallisation Methods 0.000 abstract 1
- 230000008025 crystallization Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009749 continuous casting Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000026058 directional locomotion Effects 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Abstract
The utility model provides an electromagnetic mixing device which comprises an iron core and a rotating magnetic field coil, wherein the iron core is of a cylindrical structure, a plurality of salient poles are arranged on the inner wall of the iron core in a staggered mode, the salient poles are staggered and opposite to each other in pairs, the rotating magnetic field coil is wound on the salient poles, the rotating magnetic field coil arranged on the salient poles of the iron core is of a plurality of turns, and the winding direction of the rotating magnetic field coil is parallel to the axis direction of the iron core. The utility model can generate a magnetic field, the direction of the magnetic field comprises electromagnetic components in the horizontal direction and the vertical direction, a certain vertical mixing component is overlapped in the horizontal mixing direction, the transverse and longitudinal intervals of liquid mixing are enlarged, the defects in the casting blank crystallization process are further reduced, and the casting blank quality is improved.
Description
Technical Field
The utility model relates to the technical field of steel continuous casting equipment, in particular to an electromagnetic mixing device.
Background
In the nonferrous metal smelting process, the electromagnetic mixing equipment is used as a device capable of generating a rotating magnetic field and a traveling wave magnetic field, so that nonferrous metal in the crystallizer can perform directional movement. In the steelmaking process of the continuous casting machine, the electromagnetic mixing technology is applied to ensure that the components in the molten steel are more uniform, the nonferrous metals are fully mixed, and the segregation in the nonferrous metal casting process can be reduced to a great extent, so that the quality of a casting blank is ensured.
Most of the electromagnetic mixing technologies at present adopt a single rotating magnetic field mixing technology or a traveling wave magnetic field mixing technology, the mixing effect of the single magnetic field mixing on nonferrous metal liquid is not ideal due to skin effect, and in recent years, several electromagnetic mixing devices combining the two mixing technologies of the rotating magnetic field and the traveling wave magnetic field are presented, the mixing effect is improved, but the rotating magnetic field and the traveling wave magnetic field are respectively generated by adopting two types of coils, and the structures of an iron core and the coils of the mixing device are complex and large.
Disclosure of utility model
In order to solve the problems in the background art, the utility model provides an electromagnetic mixing device which comprises an iron core and a rotating magnetic field coil, wherein the iron core is of a cylindrical structure, a plurality of salient poles are arranged on the inner wall of the iron core in a staggered mode, the salient poles are staggered and opposite to each other in the circumferential direction of the inner wall of the iron core, the rotating magnetic field coil is wound on the salient poles, the rotating magnetic field coil arranged on the salient poles of the iron core is of a plurality of turns, and the winding direction of the rotating magnetic field coil is parallel to the axial direction of the iron core.
Preferably, the iron core is laminated by a magnetic conductive material.
Preferably, the thickness of the magnetic conductive material is 0.5-1.5mm.
Preferably, the number of the rotating field coils and salient poles is an integer multiple of 6.
Preferably, the rotating magnetic field coil is powered by a low frequency ac power supply.
Preferably, the frequency of the low-frequency alternating current power supply is 0.5-3.5Hz.
The utility model has the beneficial effects that:
1) The rotating magnetic field coils are wound on the salient poles, and the opposite salient poles have certain staggering angles, so that the rotating magnetic field direction is divided into electromagnetic components in the horizontal direction and the vertical direction, the crystallizer forms a rotating vortex type magnetic field, and certain vertical mixing components are superimposed while mixing in the horizontal direction, thereby increasing the reaction speed of metallurgy, improving the heat and mass transfer process, increasing the production efficiency, improving the casting blank quality and reducing the cost.
2) The utility model has simple structure and small volume, the rotating magnetic field coils staggered in relative positions can realize the combined action of magnetic field forces in the horizontal direction and the vertical direction of the rotating magnetic field, the mixing effect is improved on the basis of not increasing the longitudinal coil structure, and the manufacturing and the use are more convenient.
Drawings
FIG. 1 is a front view of an expanded cross-section of an iron core of the present utility model;
FIG. 2 is a schematic diagram of the iron core structure of the present utility model;
Figure 3 is a top view of the present utility model.
Reference numerals in the drawings: 1-rotating field iron core first salient pole, 2-rotating field iron core second salient pole, 3-rotating field iron core third salient pole, 4-rotating field iron core fourth salient pole, 5-rotating field iron core fifth salient pole, 6-rotating field iron core sixth salient pole, 7-rotating field first coil, 8-rotating field second coil, 9-rotating field third coil, 10-rotating field fourth coil, 11-rotating field fifth coil, 12-rotating field sixth coil.
Detailed Description
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
As shown in fig. 1 and 2, an electromagnetic mixing device comprises an iron core and a rotating magnetic field coil, wherein the iron core is of a cylindrical structure with six salient poles arranged on the inner wall, the six salient poles are respectively a rotating magnetic field iron core first salient pole 1, a rotating magnetic field iron core second salient pole 2, a rotating magnetic field iron core third salient pole 3, a rotating magnetic field iron core fourth salient pole 4, a rotating magnetic field iron core fifth salient pole 5 and a rotating magnetic field iron core fourth salient pole 6, and the six salient poles are uniformly arranged in the iron core of the magnetic field generating device, the positions of the rotating magnetic field iron core first salient pole 1 and the rotating magnetic field iron core fourth salient pole 4 are staggered and opposite, the positions of the rotating magnetic field iron core second salient pole 2 and the rotating magnetic field iron core fifth salient pole 5 are staggered and opposite, and the positions of the rotating magnetic field iron core third salient pole 3 and the rotating magnetic field iron core sixth salient pole 6 are staggered and opposite; the positional relationship of the two salient poles which are staggered and opposite is specifically exemplified by a first salient pole 1 of the rotating magnetic field iron core and a fourth salient pole 4 of the rotating magnetic field iron core: the first salient pole 1 of the rotating magnetic field iron core and the fourth salient pole 4 of the rotating magnetic field iron core are positioned on the same radial direction of the iron core, and the positions of the first salient pole 1 of the rotating magnetic field iron core and the fourth salient pole 4 of the rotating magnetic field iron core are staggered up and down;
The rotating magnetic field coils comprise a rotating magnetic field first coil 7, a rotating magnetic field second coil 8, a rotating magnetic field third coil 9, a rotating magnetic field fourth coil 10, a rotating magnetic field fifth coil 11 and a rotating magnetic field sixth coil 12, wherein the rotating magnetic field first coil 7, the rotating magnetic field second coil 8, the rotating magnetic field third coil 9, the rotating magnetic field fourth coil 10, the rotating magnetic field fifth coil 11 and the rotating magnetic field sixth coil 12 are respectively wound on a rotating magnetic field iron core first salient pole 1, a rotating magnetic field iron core second salient pole 2, a rotating magnetic field iron core third salient pole 3, a rotating magnetic field iron core fourth salient pole 4, a rotating magnetic field iron core fifth salient pole 5 and a rotating magnetic field iron core fourth salient pole 6, and the winding direction of the rotating magnetic field coils is parallel to the axis direction of the iron core and is provided with a plurality of turns.
Specifically, the iron core is made by laminating magnetic conductive materials, the magnetic conductive materials can be silicon steel sheets, the magnetic conductive materials have a certain thickness, and the thickness of the magnetic conductive materials is 0.5-1.5mm.
As shown in fig. 3, a low-frequency alternating current is supplied to the first rotating magnetic field coil 7, the second rotating magnetic field coil 8, the third rotating magnetic field coil 9, the fourth rotating magnetic field coil 10, the fifth rotating magnetic field coil 11, and the sixth rotating magnetic field coil 12 to generate a magnetic field, and the six rotating magnetic field coils are arranged in a staggered manner, so that the magnetic field generates a mixed electromagnetic force component in both the horizontal direction and the vertical direction.
Specifically, the rotating magnetic field coil is powered by a low-frequency alternating current power supply, the frequency of the low-frequency alternating current power supply is 0.5-3.5Hz, and the magnitude of magnetic field force acting in the crystallizer can be changed by adjusting the magnitude of the frequency of alternating current fed into the rotating magnetic field coil.
The working method of the electromagnetic mixing device comprises the following steps:
The method comprises the steps of winding a rotating magnetic field coil on a rotating magnetic field iron core salient pole, introducing low-frequency alternating current into the rotating magnetic field coil, generating a continuously-changing magnetic field inside the rotating magnetic field iron core salient pole and crystallizer liquid, inducing induced electromotive force when the alternating magnetic field passes through nonferrous metal liquid, generating induced current, and enabling electromagnetic force finally generated in the nonferrous metal liquid to be decomposed into normal electromagnetic force and tangential electromagnetic force by the combined action of the induced current and the magnetic field, wherein electromagnetic mixing is realized on the nonferrous metal liquid under the action of low frequency, the tangential force is mainly expressed, and the force can promote the nonferrous metal liquid to move along the circumferential direction.
In order to meet the requirements of different product processing technologies, the magnitude of magnetic field force acting in the crystallizer can be changed by adjusting the magnitude and the direction of the frequency of alternating current passing through the rotating magnetic field coil.
The foregoing detailed description of the embodiments of the utility model has been presented in conjunction with the drawings, but the utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.
Claims (6)
1. An electromagnetic mixing device, characterized in that: the magnetic field rotating device comprises an iron core and a magnetic field rotating coil, wherein the iron core is of a cylindrical structure, a plurality of salient poles are arranged on the inner wall of the iron core in a circumferential staggered mode, the salient poles are staggered and opposite to each other, the magnetic field rotating coil is wound on the salient poles, the magnetic field rotating coil arranged on the salient poles of the iron core is of a plurality of turns, and the winding direction of the magnetic field rotating coil is parallel to the axis direction of the iron core.
2. An electromagnetic mixing device according to claim 1, wherein: the iron core is made of magnetic conductive materials through lamination.
3. An electromagnetic mixing device according to claim 2, wherein: the thickness of the magnetic conductive material is 0.5-1.5mm.
4. An electromagnetic mixing device according to claim 1, wherein: the number of the rotating field coils and salient poles is an integer multiple of 6.
5. An electromagnetic mixing device according to claim 1, wherein: the rotating magnetic field coil is powered by a low-frequency alternating current power supply.
6. An electromagnetic mixing device according to claim 5, wherein: the frequency of the low-frequency alternating current power supply is 0.5-3.5Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321594823.2U CN221109829U (en) | 2023-06-21 | 2023-06-21 | Electromagnetic mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321594823.2U CN221109829U (en) | 2023-06-21 | 2023-06-21 | Electromagnetic mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221109829U true CN221109829U (en) | 2024-06-11 |
Family
ID=91372938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321594823.2U Active CN221109829U (en) | 2023-06-21 | 2023-06-21 | Electromagnetic mixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221109829U (en) |
-
2023
- 2023-06-21 CN CN202321594823.2U patent/CN221109829U/en active Active
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