CN2344112Y - Crystallizer electromagnetic brake - Google Patents
Crystallizer electromagnetic brake Download PDFInfo
- Publication number
- CN2344112Y CN2344112Y CN 98239344 CN98239344U CN2344112Y CN 2344112 Y CN2344112 Y CN 2344112Y CN 98239344 CN98239344 CN 98239344 CN 98239344 U CN98239344 U CN 98239344U CN 2344112 Y CN2344112 Y CN 2344112Y
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- China
- Prior art keywords
- crystallizer
- magnetic
- magnetic pole
- electromagnetic brake
- field
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a crystallizer electromagnetic brake used for controlling the flowing of melting steel in a crystallizer in the casting process of metallurgy, which is composed of an upper magnetic pole and a lower magnetic pole. The upper magnetic pole and the lower magnetic pole are arranged in the same direction. The crystallizer electromagnetic brake has simple form and no magnetic leakage and can individually adjust the magnetic induction strength of the upper magnetic field and the lower magnetic field. Thus the flow field form of the crystallizer can be effectively controlled and improved.
Description
The utility model belongs to a kind of control device, particularly a kind of mobile control device of the interior molten steel of metallurgical casting process crystallization control device that is used for.
There are three kinds of basic structure forms in the electro-magnetic braking device of existing crystallizer at present by a pair of and even many steady magnetic pole of perseverance is formed: i.e. domain type electro-magnetic braking device, single bar-type electro-magnetic braking device and flow control apparatus.The domain type electro-magnetic braking device is to follow the opposite direction of magnetic pole by two pairs of independently block magnetic poles, and what be arranged in the mouth of a river goes out the stream zone.It is to the effect that stream has braking that goes out at the mouth of a river, but this kind device volume is little, action effect only limits to zone, the mouth of a river, can not effectively control the flow regime of whole crystallizer; Single bar-type magnetic pole electro-magnetic braking device is improved on the basis of domain type electro-magnetic braking device, it changes two pairs of stripe shape magnetic poles that block magnetic pole is a pair of topped crystallizer width, be arranged in the bottom at the mouth of a river, studies show that the single bar-type electro-magnetic braking device can suppress the mouth of a river effectively and go out to flow penetration depth, compression recirculating zone, bottom, but it but causes the fluctuation aggravation of crystallizer meniscus place liquid level in compression recirculating zone, bottom, also be difficult to whole crystallizer is effectively controlled.Flow control mold is made up of two single bar-type magnetic poles, and a magnetic pole is arranged in bottom, the mouth of a river, and another is arranged in meniscus surface area.Be characterized in existing in the crystallizer upper and lower two horizontal magnetic fields, and its magnetic direction is rightabout and arranges, this crystallizer can effectively and reasonably be controlled the flow regime of molten steel, but also there are two problems, the one, there is leakage field (magnet short-cut path) phenomenon, the 2nd, the field form complexity influences each other in the crystallizer, the control and regulation difficulty.
The purpose of this utility model provides a kind of leakage field phenomenon of avoiding, and guarantees the crystallizer flow control apparatus of magnetic field, top and the bottom independence.
Content of the present utility model, its structure remain two pairs of magnetic poles, and its installation position is identical with flow control apparatus, article one, magnetic pole is installed in the below of mold gap, another magnetic pole is installed in meniscus surface area, but different with flow control apparatus, and two magnetic poles are arranged in the same way about it.Its principle is to utilize that like pole repels mutually in magnetic field, and the magnetic line of force can not cross one another principle, because magnetic direction is identical, does not exist opposite pole to attract each other, and just can not produce magnet short-cut path, does not have the leakage field phenomenon.
Further narrate content of the present utility model with drawings and Examples below.
Fig. 1 is a magnetic field structure schematic diagram of the present utility model;
The structural representation that Fig. 2 uses on split type vibrating crystallizer for the utility model.
1 upper magnetic pole among the figure, 2 bottom magnetic poles, 3 split type vibrating crystallizers, 4 submersed nozzles, 5 tundish.The direction of arrow is magnetic line of force direction, i.e. magnetic direction among the figure.
Embodiment, as shown in Figure 2, upper magnetic pole 1 and bottom magnetic pole 2 utilize water cooled coil to make, and energising back produces magnetic field, when in the coil during by permanent steady electric current, in the middle of the magnetic pole of top and the bottom, will produce corresponding electromagnetic field, when the molten steel that flows out from the mouth of a river flows in crystallizer, will inevitably cutting magnetic line, thereby in molten steel, produce induced current, thereby make it be subjected to the effect of Lorentz force, and change motion state.
The utility model not only form is simple, there is not leakage field, and because the change of field structure can adopt power supply in parallel to be two magnetic pole power supplies up and down, so just can be by the method for the electric current of supply varying strength in the induction coil of top and the bottom magnetic pole, change the magnetic induction intensity in magnetic field, top and the bottom separately, thereby can more effectively control and improve the form in crystallizer flow field.
Claims (2)
1, a kind of crystallizer electromagnetic brake that includes upper and lower two magnetic poles is characterized in that upper and lower two magnetic poles arrange in the same way.
2, crystallizer electromagnetic brake as claimed in claim 1 is characterized in that upper and lower two magnetic poles of this crystallizer electromagnetic brake can be for the electric current of varying strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98239344 CN2344112Y (en) | 1998-11-13 | 1998-11-13 | Crystallizer electromagnetic brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98239344 CN2344112Y (en) | 1998-11-13 | 1998-11-13 | Crystallizer electromagnetic brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2344112Y true CN2344112Y (en) | 1999-10-20 |
Family
ID=33986730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98239344 Expired - Fee Related CN2344112Y (en) | 1998-11-13 | 1998-11-13 | Crystallizer electromagnetic brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2344112Y (en) |
-
1998
- 1998-11-13 CN CN 98239344 patent/CN2344112Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |