CN204672917U - A kind of multi-mode sheet billet continuous casting electromagnetism flow control device and magnetic stirrer - Google Patents
A kind of multi-mode sheet billet continuous casting electromagnetism flow control device and magnetic stirrer Download PDFInfo
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- CN204672917U CN204672917U CN201520380264.4U CN201520380264U CN204672917U CN 204672917 U CN204672917 U CN 204672917U CN 201520380264 U CN201520380264 U CN 201520380264U CN 204672917 U CN204672917 U CN 204672917U
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Abstract
The utility model discloses a kind of multi-mode sheet billet continuous casting electromagnetism flow control device and magnetic stirrer, electromagnetism flow control device comprises iron core; The non-working surface of described iron core is arranged in U-shaped plate; At least two groups can produce relatively or the coil winding of magnetic circuit of move toward one another on the working face and described U-shaped plate of described iron core; Valve jacket is provided with outside described coil; Described iron core is connected along the adjusting device of the direction movement parallel with the working face of described iron core in described valve jacket with driving described iron core.The U-shaped plate structure that the utility model adopts, compared with the slab electromagnetic agitation of existing import, substantially increases magnetic line of force dense degree and the heat dispersion of the zone of action; Reduce the installation difficulty of slab electromagnetic agitation in crystallizer region, well solve device and the high cost problem transformed continuous casting line is installed.
Description
Technical field
The utility model relates to a kind of multi-mode sheet billet continuous casting electromagnetism flow control device and magnetic stirrer.
Background technology
So-called type multimode electromagnetic flow control technology (i.e. MM-EMS) is on same conticaster, by the electromagnetic agitating technology that three of electromagnetism flow control kinds of functions (namely slow down, accelerate, rotate) combine.It is too fast and cause being involved in of covering slag that electromagnetic deceleration pattern can reduce invar flow velocity; Aero mode can improve meniscus molten steel flow velocity and temperature; And Rotative Stirring mode can reduce the formation of wide of slab, leptoprosopy subcutaneous blowhole.Continuous casting practice shows: adopt multi-mode EMS flow control technology, can effectively make casting billet surface and subsurface inclusion thing content greatly reduce.
At present, be used in the MM-EMS being representative with Japanese NKK and French Rotelec that domestic multi-mode EMS device mainly adopts import, although it is to improving casting billet surface and internal soundness also exists certain superiority, but weak point is: 1, this multi-mode EMS device at non-working surface without any magnetic shielding device, the magnetic field produced is dispersed to surrounding, the magnetic field intensity acting on strand inside is relatively little, is unfavorable for the mixing effect to molten steel under high speed throwing operating mode.2, the molten steel flow that the Rotative Stirring mode of this multi-mode EMS device causes can not be deep into strand center, image space round mold electromagnetic agitation can not produce the rotary motion going deep into molten steel center like that, thus initiatively can not make to enter the field trash of molten steel inside and bubble coalescence and float, do not eliminate the function of superheat of liquid steel simultaneously, improve limited to Inner Quality of Billet yet.In addition, patent of invention (application number: a kind of multi-mode continuous casting crystallizer for plate billet electromagnetic agitation 200910302486.3) proposed and flow-controlled device technology, this technology just does a preliminary elaboration to Movement in Magnetic Field pattern various in multi-mode, do not relate to the specific design of multi-mode EMS suitability for industrialized production, be only confined to notional design.Meanwhile, at home, there is not been reported, so develop a kind of production domesticization MM-EMS with autonomous property right to have more necessity for the production domesticization multi-mode EMS device with independent development applying in industrial actual production.
Summary of the invention
Technical problem to be solved in the utility model is, not enough for prior art, provides a kind of multi-mode sheet billet continuous casting electromagnetism flow control device and magnetic stirrer.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of multi-mode sheet billet continuous casting electromagnetism flow control device, comprises iron core; The non-working surface of described iron core is arranged in U-shaped plate; At least two groups can produce relatively or the coil winding of magnetic circuit of move toward one another on the working face and described U-shaped plate of described iron core; Valve jacket is provided with outside described coil; Described iron core is connected along the adjusting device of direction (the i.e. throwing direction) movement parallel with the working face of described iron core in described valve jacket with driving described iron core.
Described adjusting device comprises screw mandrel; Described screw mandrel one end contacts with the inner surface of described valve jacket side; The described screw mandrel other end is connected with the regulating wheel outside described valve jacket; Can the slide block of movement on described screw mandrel be arranged in the middle part of described screw mandrel; Described slide block is located in described U-shaped plate, and described slide block is fixedly connected with described iron core.
Described valve jacket is fixed with at least two group binding posts.
The inner surface of described coil outer surface and described valve jacket respective side is at a distance of 50mm-150mm.
Described valve jacket is fixed with the water inlet pipe be communicated with described valve jacket inside.
The utility model additionally provides a kind of magnetic stirrer, comprises copper plate of crystallizer, and described copper plate of crystallizer both sides are separately installed with at least one above-mentioned multi-mode sheet billet continuous casting electromagnetism flow control device; Each described multi-mode sheet billet continuous casting electromagnetism flow control device is electrically connected with an electric-control system.
Compared with prior art, the beneficial effect that the utility model has is: the U-shaped plate structure that the utility model adopts, and compared with the slab electromagnetic agitation of existing import, substantially increases magnetic line of force dense degree and the heat dispersion of the zone of action; Reduce the installation difficulty of slab electromagnetic agitation in crystallizer region, well solve device and the high cost problem transformed continuous casting line is installed.In addition, the independent electric-control system that magnetic stirrer of the present utility model adopts well has widened range of application and the operational mode type of import multi-mode slab electromagnetic agitation, namely on the basis of deceleration, acceleration, single rotary mode, even more important multi partition Stirring and even creeping motion type stir mode can be increased, enhance slab electromagnetic agitation field trash and bubble coalescence and the function floating and suppress column crystal to generate.
Accompanying drawing explanation
Fig. 1 is multi-mode sheet billet continuous casting electromagnetism flow control device structure chart;
Fig. 2 is multi-mode sheet billet continuous casting electromagnetism flow control device sectional view;
Fig. 3 is the right sectional view of multi-mode sheet billet continuous casting electromagnetism flow control device;
Fig. 4 is multi-mode sheet billet continuous casting electromagnetism flow control device scheme of installation;
Fig. 5 is aero mode coil groups wiring diagram;
Fig. 6 is aero mode Movement in Magnetic Field schematic diagram.
Detailed description of the invention
As shown in Figure 1-Figure 3, the utility model one embodiment comprises iron core 8; The non-working surface of described iron core 8 is arranged in U-shaped plate 10; On the working face that at least two groups can produce relatively or the coil 7 of magnetic circuit of move toward one another is wrapped in described iron core 8 and described U-shaped plate 10; Valve jacket 3 is provided with outside described coil 7; Described iron core 8 is connected along the adjusting device of the direction movement parallel with the working face of described iron core 8 in described valve jacket 3 with driving described iron core 8.
Described adjusting device comprises screw mandrel 9; Described screw mandrel 9 one end contacts with the inner surface of described valve jacket 3 side; Described screw mandrel 9 other end is connected with the regulating wheel 6 outside described valve jacket 3; Can the slide block 13 of movement on described screw mandrel 9 be arranged in the middle part of described screw mandrel 9; Described slide block 13 is located in described U-shaped plate 10, and described slide block 13 is fixedly connected with described iron core 8.
Described valve jacket 3 is fixed with at least two group binding posts 2.
The inner surface of described coil 7 outer surface and described valve jacket 3 respective side is at a distance of 50mm-150mm.
Described valve jacket 3 is fixed with the water inlet pipe 1 be communicated with described valve jacket 3 inside.
As shown in Figure 4, magnetic stirrer of the present utility model comprises copper plate of crystallizer 4; Described copper plate of crystallizer 4 both sides are separately installed with at least one above-mentioned multi-mode sheet billet continuous casting electromagnetism flow control device; Each described multi-mode sheet billet continuous casting electromagnetism flow control device is electrically connected with an electric-control system.
Iron core 8 is of a size of:
Length meets: 750mm<L<2500mm
Width meets: 100mm<K<450mm
Highly satisfied: 60mm<G<210mm.
Iron core adopts slotless structure, and its coil, around on U-shaped plate, U-shaped plate has groove to arrange cooling copper tube simultaneously; In addition, agitator valve jacket and one end, iron core coupling part adopt feed screw nut's adjust structure, and the other end adopts the polished rod through valve jacket to position installation with the slide block being arranged on iron core.
Each inductor exciting current can by two-phase or three phase supply according to actual service condition, if two-phase is powered, coil groups is 4-20 group, and often organizing the number of turn is 60-150 circle, three phase supply, and coil groups is 6-36 group, and often organizing the number of turn is 60-240 circle; In an inductor, at least comprise two parts coil groups, this two parts coil groups can produce relatively or the row ripple of move toward one another; The mode of connection that Fig. 5 gives this pattern lower coil winding for aero mode meets following relation:
Coil groups can one or adjacent multiple be one group, for three phase excitation, have 6 groups of coils, 12 binding posts 2 in one at least to connect a, b, c three-phase of three-phase alternating current; In Fig. 5 example, the agitator mode of connection of two relative same positions is identical, and adjacent side a, b, c connect as-c ,-b ,-a, and the travelling-magnetic-field direction of motion of generation as shown in Figure 6; The realization of other patterns is combined into the plurality of operating modes such as acceleration, deceleration, rotation, multi partition rotation by changing adjacent phase order and the positive and negative mode of connection in electromagnetic mixing apparatus.
The U-shaped plate 10 of high conductivity: processed by the copper or aluminum with high conductivity, be the occupation rate of simplified cooling system to device space simultaneously, adopt and offer cooling tube seat on U-shaped plate, on the one hand, improve the cooling effect of whole device, in addition, the layout structure of each part of whole multi-mode EMS device is also optimized.
Adjusting device: form primarily of regulating wheel 6, screw mandrel 9, threaded slide block 13, guide post 11 and guide runner 12; Wherein, valve jacket 3 inner surface and coil groups 7 outer surface both sides are at a distance of 50mm-150mm, so in use iron core can be regulated in the movement in throwing direction by regulating wheel 6, movement between multiple stage then can form the creeping motion type magnetic field with certain spiral angle, is reflected on molten steel and is the stirring of compacted formula.
Adopt slotless core structure in the present invention, surface is provided with the U-shaped plate of high conductivity simultaneously, has effectively concentrated the magnetic line of force of working region to distribute, has strengthened effective electromagnetic agitation scope; In addition, the U-shaped plate being furnished with cooling tube directly contacts with coil windings with iron core, improves the radiating effect of whole device greatly; In addition, in slab, outer arc side is mounted with one or more MM-EMS respectively, and each MM-EMS adopts independently electric control system controls, therefore, except the acceleration of external MM-EMS, deceleration, single rotary mode, more importantly yet forms both the rotary mode of two subregion or more subregion, so largely improve the quality of slab, coiled sheet; In addition, the most important is exactly that each MM-EMS is provided with iron core position adjustment structure, combined by adjustment one correct position in throwing direction like this, so just can form compacted type to stir or other forms of stirring, be more conducive to field trash and bubble coalescence and float and suppress the function of column crystals growth.
Production during the utility model multi-mode EMS device is not only applicable to during low pulling rate (pulling rate is less than 2.0m/s) continuous casting, and the magnetic line of force of the U-shaped plate of high conductivity to working face adopted has the effect of gathering to improve the value of electromagnetic force under equal conditions greatly, improve it to result of use during (pulling rate is greater than 2m/s) continuous casting at a high speed.In use agitator is installed on position between crystallizer meniscus and water-gap outlets, in addition, every platform agitating device is all controlled by independently electric-control system, can select size and the stir mode of mixing power so in process of production according to technological requirement.
Claims (6)
1. a multi-mode sheet billet continuous casting electromagnetism flow control device, is characterized in that, comprises iron core (8); The non-working surface of described iron core (8) is arranged in U-shaped plate (10); On the working face that at least two groups can produce relatively or the coil (7) of magnetic circuit of move toward one another is wrapped in described iron core (8) and described U-shaped plate (10); Valve jacket (3) is provided with outside described coil (7); Described iron core (8) is connected with the adjusting device that described iron core (8) can be driven along the movement of throwing direction in described valve jacket (3).
2. multi-mode sheet billet continuous casting electromagnetism flow control device according to claim 1, it is characterized in that, described adjusting device comprises screw mandrel (9); Described screw mandrel (9) one end contacts with the inner surface of described valve jacket (3) side; Described screw mandrel (9) other end is connected with the regulating wheel (6) in described valve jacket (3) outside; Described screw mandrel (9) middle part can be arranged at the slide block (13) of the upper movement of described screw mandrel (9); Described slide block (13) is located in described U-shaped plate (10), and described slide block (13) is fixedly connected with described iron core (8).
3. multi-mode sheet billet continuous casting electromagnetism flow control device according to claim 2, is characterized in that, described valve jacket (3) is fixed with at least two group binding posts (2).
4. multi-mode sheet billet continuous casting electromagnetism flow control device according to claim 3, is characterized in that, the inner surface of described coil (7) outer surface and described valve jacket (3) respective side is at a distance of 50mm-150mm.
5. multi-mode sheet billet continuous casting electromagnetism flow control device according to claim 4, is characterized in that, described valve jacket (3) is fixed with the water inlet pipe (1) be communicated with described valve jacket (3) inside.
6. a magnetic stirrer, comprises copper plate of crystallizer (4); It is characterized in that, described copper plate of crystallizer (4) both sides are separately installed with the described multi-mode sheet billet continuous casting electromagnetism flow control device of one of at least one the claims 1 ~ 5; Each described multi-mode sheet billet continuous casting electromagnetism flow control device is electrically connected with an electric-control system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520380264.4U CN204672917U (en) | 2015-06-05 | 2015-06-05 | A kind of multi-mode sheet billet continuous casting electromagnetism flow control device and magnetic stirrer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520380264.4U CN204672917U (en) | 2015-06-05 | 2015-06-05 | A kind of multi-mode sheet billet continuous casting electromagnetism flow control device and magnetic stirrer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105935751A (en) * | 2016-07-05 | 2016-09-14 | 湖南中科电气股份有限公司 | Multifunctional multi-mode electromagnetic flow control device of slab continuous casting crystallizer |
| CN109967710A (en) * | 2019-05-20 | 2019-07-05 | 吉林工程技术师范学院 | A kind of metallurgy class continuous casting extension electromagnetic agitating device |
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2015
- 2015-06-05 CN CN201520380264.4U patent/CN204672917U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105935751A (en) * | 2016-07-05 | 2016-09-14 | 湖南中科电气股份有限公司 | Multifunctional multi-mode electromagnetic flow control device of slab continuous casting crystallizer |
| CN109967710A (en) * | 2019-05-20 | 2019-07-05 | 吉林工程技术师范学院 | A kind of metallurgy class continuous casting extension electromagnetic agitating device |
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