CN204672916U - Full winding continuous casting crystallizer for plate billet electromagnetic mixing apparatus and continuous casting crystallizer for plate billet - Google Patents
Full winding continuous casting crystallizer for plate billet electromagnetic mixing apparatus and continuous casting crystallizer for plate billet Download PDFInfo
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- CN204672916U CN204672916U CN201520108244.1U CN201520108244U CN204672916U CN 204672916 U CN204672916 U CN 204672916U CN 201520108244 U CN201520108244 U CN 201520108244U CN 204672916 U CN204672916 U CN 204672916U
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- iron core
- mixing apparatus
- continuous casting
- columnar iron
- electromagnetic mixing
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Abstract
The utility model discloses a kind of full winding continuous casting crystallizer for plate billet electromagnetic mixing apparatus and continuous casting crystallizer for plate billet, electromagnetic mixing apparatus comprises columnar iron core working face not being established teeth groove; The non-working surface of columnar iron core is located in interior water collar; Multiple coil is on the working face and interior water collar of columnar iron core; Coil on interior water collar is located in outer water collar; Be equipped with circulation line in interior water collar, outer water collar, and circulation line two ends are respectively communicated with a water pipe head.The utility model can improve the space availability ratio of coil windings to greatest extent, and increase the magnetic conductive area of columnar iron core, increase magnetic field intensity, make the electromagnetic push of electromagnetic mixing apparatus increase 10 ~ 20%, the production cycle shortens 1/3, and highly versatile.
Description
Technical field
The utility model relates to electromagnetic mixing apparatus and crystallizer, particularly a kind of full winding continuous casting crystallizer for plate billet electromagnetic mixing apparatus and continuous casting crystallizer for plate billet.
Background technology
Continuous casting practice shows, the erosion of steel slab surface and internal flaw and initial solidification shell is mostly closely related with molten steel in mold flow profile.The MOLTEN STEEL FLOW that in crystallization control device, the flowing of molten steel particularly controls near meniscus has significant impact to the high-quality and high production rate that realize sheet billet continuous casting.Utilize the continuous casting crystallizer for plate billet electromagnetic agitation flow control technology of electromagnetic force because of noncontact, pollution-free, can effectively improve casting billet surface and internal soundness, even strand initial stage solidified shell thickness, the advantages such as stabilizing continuous casting operation, and be employed in the variety steels such as special steel more and more.
The basic principle of continuous casting crystallizer for plate billet electromagnetic mixing apparatus work: outer arc both sides configure inner arc side electromagnetic inductor and outer arc side electromagnetic inductor respectively in Wide-surface copper plate of crystallizer, between the discharge opening being arranged on meniscus and the intrusive mood mouth of a river.The travelling-magnetic-field that interior outer arc side electromagnetic inductor excitation direction is contrary, produces the electromagnetic force that direction is contrary, thus makes molten steel generation horizontally rotate stirring.
Existing continuous casting crystallizer for plate billet electromagnetic mixing apparatus has following deficiency: a, columnar iron core adopt tooth slot structure, it is larger that columnar iron core tooth accounts for volume, boss is there is between teeth groove and teeth groove, at equal installing space with under identical exciting current, its winding space certainly will be reduced, i.e. the number of ampere turns of electromagnetic inductor, ratio shared by winding and columnar iron core cross section is reduced, coil turn and magnetic conductive area little, so magnetic field is also less.The heating of b, columnar iron core magnetic hysteresis and winding Joule heat are comparatively large, affect device lifetime.C, existence due to teeth groove, bring larger difficulty also to the making of whole columnar iron core, thus add the production cycle of whole electromagnetic mixing apparatus.D, installation site are fixed, can not be adjustable online, easily cause molten steel liquid fluctuating, be unfavorable for the mixing position finding best metallurgical effect.E, electric control system controls mode are single, are not suitable with multi-mode commercial Application demand.At present, the research for continuous casting crystallizer for plate billet is few, and the equal electromagnetic mixing apparatus of existing plate slab crystallizer uses the columnar iron core of spline.
Summary of the invention
Technical problem to be solved in the utility model is, for above-mentioned the deficiencies in the prior art, provides a kind of full winding continuous casting crystallizer for plate billet electromagnetic mixing apparatus and continuous casting crystallizer for plate billet.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of full winding continuous casting crystallizer for plate billet electromagnetic mixing apparatus, comprises columnar iron core working face not being established teeth groove; The non-working surface of described columnar iron core is located in interior water collar; Multiple coil is around on the described columnar iron core being provided with described interior water collar; Coil on described interior water collar is located in outer water collar; Be equipped with circulation line in described interior water collar, outer water collar, and described circulation line two ends are respectively communicated with a water pipe head.
Described interior water collar, outer water collar cross section are concave shape, farthest reduce the eddy-current heating amount that non-working surface structure produces.
Described coil is made up of hollow copper pipe or flat copper band.
Described columnar iron core cross section can be rectangle, circle or all the other shapes.
The dutycycle of described coil and described columnar iron core is more than or equal to 0.7, namely 70% iron core on cover coil, can electromagnetic push be increased.
Described columnar iron core two ends are stretched in the installing space that is made up of installing plate respectively; Adjustment screw one end contacts with a non-working surface of described columnar iron core through after wherein one piece of installing plate, and this non-working surface is adjacent with described working face; Described adjustment screw promotes described columnar iron core and moves towards the direction away from the installing plate installing described adjustment screw.
Cushion block is provided with, for limiting columnar iron core displacement between the installing plate of the non-working surface that above-mentioned and working face is adjacent and this non-working surface close.
Frame body is fixed with above described columnar iron core; Described frame body one end is fixed with two cable connectors, and the described frame body other end is fixed with a cable connector, facilitates winding wiring.
The utility model additionally provides a kind of full winding continuous casting crystallizer for plate billet, comprises copper plate of crystallizer and two above-mentioned electromagnetic mixing apparatus; The columnar iron core working face of described two electromagnetic mixing apparatus is corresponding relative with inner arc side position with the outer arc side of described copper plate of crystallizer respectively; Under the adjustment of described adjustment screw, the discrepancy in elevation between the center line of described columnar iron core and described meniscus is 0 ~ 200mm; The terminals of described multiple coil are connected with variable-frequency power sources control system.
Compared with prior art, the beneficial effect that the utility model has is: electromagnetic mixing apparatus of the present utility model adopts the columnar iron core of slotless column structure, the space availability ratio of coil windings can be improved to greatest extent, increase the magnetic conductive area of columnar iron core, increase magnetic field intensity, make the electromagnetic push of electromagnetic mixing apparatus increase 10 ~ 20%, the production cycle shortens 1/3; Water collar is set, internal water cooling structure, decrease due to the heat radiation under the heating of columnar iron core magnetic hysteresis, winding Joule heat and high-temperature work environment largely, under reducing worst hot case, temperature is on the impact of whole electromagnetic mixing apparatus stability, weaken temperature and cause impact on meniscus liquid fluctuating under the improper fluctuation in magnetic field, also extend the service life of equipment simultaneously; In crystallizer of the present utility model, the installation site of electromagnetic mixing apparatus columnar iron core is provided with movable adjustable governor motion (adjustment screw), the dynamic adjustments of mixing position on continuous casting line can be realized, prevent liquid level fluctuation of molten steel, conveniently electromagnetic mixing apparatus is arranged on optimum position, simultaneously, because columnar iron core installation site is adjustable, crystallizer of the present utility model goes for the casting of more steel grade, and highly versatile is applied widely.
Accompanying drawing explanation
Fig. 1 is the utility model one embodiment electromagnetic mixing apparatus front view;
Fig. 2 is the utility model one embodiment electromagnetic mixing apparatus side view;
Fig. 3 is the utility model one embodiment columnar iron core sectional view;
Fig. 4 is the utility model one embodiment mold structure schematic diagram;
Fig. 5 (a) uses when having a teeth groove columnar iron core, columnar iron core coiling schematic diagram; Fig. 5 (b) is when using slotless columnar iron core, columnar iron core coiling schematic diagram;
Fig. 6 is the utility model electromagnetic mixing apparatus and not spline columnar iron core electromagnetic mixing apparatus experimental data comparison diagram.
Detailed description of the invention
As shown in Figure 1, the utility model one embodiment electromagnetic mixing apparatus comprises the columnar iron core 5 working face not being established teeth groove; The non-working surface of columnar iron core 5 is located in interior water collar 12; Multiple coil 13 is around on the described columnar iron core 5 being provided with described interior water collar 12; Coil 13 on described interior water collar 12 is located in outer water collar 2; Be equipped with circulation line in interior water collar 12, outer water collar 2, and circulation line two ends are respectively communicated with a water pipe head 8.Interior water collar, outer water collar side have one uncovered, its shape is determined according to columnar iron core shape, interior water collar is the same with the structure of outer water collar, two pieces of metallic plate laminatings all can be adopted to form, and the binding face same position place of two pieces of metallic plates offers groove, after two pieces of metallic plate laminatings, the matching grooves on it forms circulation line.Columnar iron core cross section can be the shapes such as rectangle, circle, polygon.Coil is made around on columnar iron core and interior water collar by hollow copper pipe or flat copper band, and the coil forming winding distributes by exciting the structural requirement in heterogeneous magnetic field.Water pipe head 8 is communicated with water pipe 10, for logical cooling water.
Columnar iron core 5 two ends are stretched in the installing space 11 that is made up of installing plate 9 respectively; Adjustment screw 6 one end is passed wherein one piece of installing plate 9 and is contacted with a non-working surface of columnar iron core afterwards, and this non-working surface is adjacent with described working face; Adjustment screw 6 can promote described columnar iron core 5 and move towards the direction away from the installing plate 9 installing adjustment screw 6, cushion block 7 is provided with between the installing plate of the non-working surface adjacent with working face and this non-working surface close, after having adjusted iron core position, cushion block 7 can limit iron core and move.
Frame body 3 is fixed with above columnar iron core 5; Frame body 3 one end is fixed with two cable connectors 4, and frame body 3 other end is fixed with a cable connector, facilitates winding wiring.
Full winding continuous casting crystallizer for plate billet of the present utility model comprises copper plate of crystallizer and above-mentioned electromagnetic mixing apparatus 14; The columnar iron core working face of two electromagnetic mixing apparatus is corresponding relative with inner arc side position with the outer arc side of copper plate of crystallizer 15 respectively; Under the adjustment of adjustment screw 6, the discrepancy in elevation between the center line of columnar iron core 5 and described meniscus is 0 ~ 200mm(and adjustable range is-100mm ~ 100mm, and with the place of 100mm below meniscus for reference plane, mobile more than reference plane is just, otherwise is negative); The terminals of multiple coil 13 are electrically connected with variable-frequency power sources control system 1.Form a magnetic pole between multiple winding, the electromagnetic inductor installed with symmetry forms a pair magnetic pole, meanwhile, keeps certain phase angle between multiple winding, just defines multipair magnetic pole like this between outer arc electromagnetic mixing apparatus.
Variable-frequency power sources control system has following functions: the power supply excitation of outer arc side electromagnetic mixing apparatus in a, separately control; Outer arc side electromagnetic mixing apparatus in b, Synchronization Control; Outer arc side electromagnetic mixing apparatus in c, asynchronous controlling.
In use, in Wide-surface copper plate of crystallizer, outer arc both sides configure inner arc side electromagnetic inductor (i.e. electromagnetic mixing apparatus) and outer arc side electromagnetic inductor respectively, between the discharge opening being arranged on meniscus and the intrusive mood mouth of a river.The distance of columnar iron core and meniscus is regulated by adjustment screw, to find the mixing position of best metallurgical effect, meanwhile, the travelling-magnetic-field that interior outer arc side electromagnetic inductor excitation direction is contrary, produce the electromagnetic force that direction is contrary, thus make molten steel generation horizontally rotate stirring.Fig. 5 (a) and Fig. 5 (b) use when having teeth groove and slotless columnar iron core, columnar iron core coiling schematic diagram.Fig. 6 is under given the same terms, utilizes the experimental measurements of the utility model electromagnetic mixing apparatus and original tape teeth groove electromagnetic mixing apparatus, and measurement point is copper plate of crystallizer all layouting along electromagnetic mixing apparatus length direction.Within the specific limits, magnetic induction intensity is larger, and mean that the electromagnetic push acted on molten steel is larger, metallurgical effect is better.In addition, magnetic field intensity is large, when molten steel obtains same thrust, magnetic field penetration power is stronger, and that copper plate of crystallizer can be done like this is thicker, this means copper plate of crystallizer longer service life, maintenance period is longer, brings very large benefit to the plant maintenance of steel mill.As shown in Figure 6, under the same conditions, electromagnetic mixing apparatus of the present utility model is used to obtain larger magnetic induction intensity.
Claims (8)
1. a full winding continuous casting crystallizer for plate billet electromagnetic mixing apparatus, is characterized in that, comprises the columnar iron core (5) working face not being established teeth groove; The non-working surface of described columnar iron core (5) is located in interior water collar (12); Multiple coil (13) is around on the described columnar iron core (5) being provided with described interior water collar (12); Coil (13) on described interior water collar (12) is located in outer water collar (2); Described interior water collar (12), outer water collar are equipped with circulation line in (2), and described circulation line two ends are respectively communicated with a water pipe head (8).
2. full winding continuous casting crystallizer for plate billet electromagnetic mixing apparatus according to claim 1, is characterized in that, described interior water collar (12), outer water collar (2) cross section are concave shape.
3. full winding continuous casting crystallizer for plate billet electromagnetic mixing apparatus according to claim 1, is characterized in that, described coil (13) is more than or equal to 0.7 with the dutycycle of described columnar iron core (5).
4. according to the full winding continuous casting crystallizer for plate billet electromagnetic mixing apparatus one of claims 1 to 3 Suo Shu, it is characterized in that, described columnar iron core (5) two ends are stretched in the installing space (11) that is made up of installing plate (9) respectively; Adjustment screw (6) one end is passed wherein one piece of installing plate (9) and is contacted with a non-working surface of described columnar iron core afterwards, and this non-working surface is adjacent with described working face; Described adjustment screw (6) promotes described columnar iron core (5) and moves towards the direction away from the installing plate (9) installing described adjustment screw (6).
5. full winding continuous casting crystallizer for plate billet electromagnetic mixing apparatus according to claim 4, is characterized in that, is provided with cushion block (7) between the installing plate of the non-working surface that above-mentioned and working face is adjacent and this non-working surface close.
6. full winding continuous casting crystallizer for plate billet electromagnetic mixing apparatus according to claim 5, it is characterized in that, described water pipe head (8) is communicated with water pipe (10).
7. full winding continuous casting crystallizer for plate billet electromagnetic mixing apparatus according to claim 6, is characterized in that, described columnar iron core (5) top is fixed with frame body (3); Described frame body (3) one end is fixed with two cable connectors (4), and described frame body (3) other end is fixed with a cable connector.
8. a full winding continuous casting crystallizer for plate billet, is characterized in that, comprises copper plate of crystallizer and two electromagnetic mixing apparatus according to claim 7 (14); The columnar iron core working face of described two electromagnetic mixing apparatus is corresponding relative with inner arc side position with the outer arc side of described copper plate of crystallizer (15) respectively; Under the adjustment of described adjustment screw (6), the discrepancy in elevation between the center line of described columnar iron core (5) and meniscus is 0 ~ 200mm; The terminals of described multiple coil (13) are electrically connected with variable-frequency power sources control system (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520108244.1U CN204672916U (en) | 2015-02-15 | 2015-02-15 | Full winding continuous casting crystallizer for plate billet electromagnetic mixing apparatus and continuous casting crystallizer for plate billet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520108244.1U CN204672916U (en) | 2015-02-15 | 2015-02-15 | Full winding continuous casting crystallizer for plate billet electromagnetic mixing apparatus and continuous casting crystallizer for plate billet |
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| Publication Number | Publication Date |
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| CN204672916U true CN204672916U (en) | 2015-09-30 |
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| CN201520108244.1U Withdrawn - After Issue CN204672916U (en) | 2015-02-15 | 2015-02-15 | Full winding continuous casting crystallizer for plate billet electromagnetic mixing apparatus and continuous casting crystallizer for plate billet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104646640A (en) * | 2015-02-15 | 2015-05-27 | 湖南中科电气股份有限公司 | Full-winding electromagnetic stirring device for plate billet continuous casting crystallizer and plate billet continuous casting crystallizer |
-
2015
- 2015-02-15 CN CN201520108244.1U patent/CN204672916U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104646640A (en) * | 2015-02-15 | 2015-05-27 | 湖南中科电气股份有限公司 | Full-winding electromagnetic stirring device for plate billet continuous casting crystallizer and plate billet continuous casting crystallizer |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150930 Effective date of abandoning: 20160629 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20150930 Effective date of abandoning: 20160629 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |