CN2504014Y - Electromagnetic brake of continuous cast molten pool liquid wave - Google Patents
Electromagnetic brake of continuous cast molten pool liquid wave Download PDFInfo
- Publication number
- CN2504014Y CN2504014Y CN 01254464 CN01254464U CN2504014Y CN 2504014 Y CN2504014 Y CN 2504014Y CN 01254464 CN01254464 CN 01254464 CN 01254464 U CN01254464 U CN 01254464U CN 2504014 Y CN2504014 Y CN 2504014Y
- Authority
- CN
- China
- Prior art keywords
- casting
- yoke
- coil windings
- molten steel
- continuous casting
- Prior art date
- 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 - Lifetime
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 238000004804 winding Methods 0.000 claims abstract description 21
- 238000005266 casting Methods 0.000 claims abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000009749 continuous casting Methods 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000002893 slag Substances 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005499 meniscus Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229940019097 EMLA Drugs 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- NNJVILVZKWQKPM-UHFFFAOYSA-N Lidocaine Chemical compound CCN(CC)CC(=O)NC1=C(C)C=CC=C1C NNJVILVZKWQKPM-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000368 destabilizing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Landscapes
- Continuous Casting (AREA)
Abstract
An electromagnetic brake device for continuous casting pools with fluctuated liquid surface belongs to the continuous casting equipment technology. In order to solve the problem that the fluctuations of liquid surface of the continuous casting pools can stop the cyclical deformation of the flow path of protective slag, thus the surface quality of casting flans can be deteriorated, an internal set-DC current electromagnetic coil is arranged above the liquid level of a molten steel casting pool around the lower part of an immerged water gap; the electromagnetic coil has a static magnetic field and can work together with induced current to generate electromagnetic force. The flow speed of molten steel which leaves the nozzle of the water gap can be slowed down by the electromagnetic force, thereby reducing the moving attack of the casting pool from molten steel; meanwhile, the fluctuation of the casting pool caused by the unstable factors outside can also be inhibited by the electromagnetic force; therefore the stability of the casting pool can be achieved and the surface quality of casting flans can be improved; apart from left and right coil windings, special left and right yoke iron structures are also added to ensure the effect of blocking force from the two magnetic field more effective; the utility model has wide application value in round flans and square flans which are all casted by the immerged water gap in slab continuous casting, more particularly in twin-roll thin strip continuous casting.
Description
Technical field
The utility model relates to a kind of electro-magnetic braking device of stabilizing continuous casting pool level fluctuation, belongs to the continuous casting installation for casting technical field.
Background technology
In casting process; the covering slag stream is usually because pool level fluctuation and periodic distortion is obstructed; thereby cc billet surface quality is worsened; especially in strip steel double-roller rolling process; because molten steel impact and roll rotation from submersed nozzle make liquid fluctuating bigger, thereby cause the dynamic lateral pressure in molten bath bigger more than 10 times than static lateral pressure.
In order to solve and to suppress pool level fluctuation, adopt electromagnetic brake technology mostly.The nineties, the river fine jade was made iron on the basis of first generation electromagnetic brake technology, had successfully developed the FC-MOLD technology, and two groups of static magnetic fields are installed by this system on the whole width of crystallizer, and one group is positioned near the meniscus, and another group is positioned at the crystallizer bottom.The fluctuation of the favourable stable meniscus molten steel in the magnetic field on top prevents to form turbulent flow and solidified shell is involved in covering slag; The penetration depth of molten steel then can be reduced in magnetic field, bottom, helps upwards discharging of field trash and bubble.But the deterioration of slab quality often appears in the low speed production, as opens and water, water eventually, change tundish, abnormal accident processing etc., and this moment, braking effect descended greatly.For this reason, NKK has developed the EMLS/EMLA steel flow control system that has braking simultaneously and quicken function again.But; existing these electromagnetic brake technology electromagnetic field generators are installed in outside the crystallizer, and the covering slag on the liquid level is existing necessarily to be involved in, and MOLTEN STEEL FLOW speed is existing to be reduced to a certain extent; and magnetic field must be passed the crystallizer copper shell and just can work, thereby braking effect is subjected to certain limitation.
Summary of the invention
The purpose of this utility model is to provide a kind of electromagnetic force retardance intrusive mood mouth of a river orifice flow that spues that utilizes to go out MOLTEN STEEL FLOW and slow down the electro-magnetic braking device of molten steel to the molten bath percussion, this device produces electromagnetic force and slows down the mouth of a river hole MOLTEN STEEL FLOW speed that spues, minimizing is to the dynamic impulsion in molten bath, suppress simultaneously because the fluctuation of molten steel in the molten bath that other factors cause, stabilised bath, improve slab quality.
In order to achieve the above object, the technical solution of the utility model is: the solenoid that inner perfectly straight stream electric current is set above the molten steel bath surface around in the submersed nozzle bottom, produce the electromagnetostatic field, this electromagnetostatic field generating means divides a left side and right coil windings, and brake left and right two mouths of a river molten steel plume that the hole spues that spues respectively in the magnetic field of generation.For the retardation that makes the magnetic field of working between the yoke head is more effective, ungulate yoke is designed to special construction.
The principle of such scheme is: the magnetostatic field induced field current intensity that solenoid produces: J=E/r=Blv/r.Wherein E is an induced electromotive force, and r is the resistance value of loop, and l is the length that is in motion cutting magnetostatic field B in the loop.Electromagnetic force: F=BJl=lB
2V/r=KB
2V, K=l/r in the formula.As can be seen, v (MOLTEN STEEL FLOW speed) is big more from the electromagnetic force equation, and the electric current J that responds in the molten steel plume is just big more, and the electromagnetic force F that the molten steel plume is subjected to is just big more.Like this, electromagnetic force is slowed down the submersed nozzle hole molten steel plume speed that spues, and reduces the dynamic impulsion of casting molten steel plume to the molten bath, suppresses because destabilizing factors such as casting roller rotation cause molten steel fluctuation in the molten bath, thereby stabilised bath, improves slab quality.
By the enforcement of such scheme, for the value that are widely used such as various round billet continuous castings, billet continuous casting, sheet billet continuous casting, particularly twin-roll thin strip steel continuous casting that have by the submersed nozzle casting.Compared with prior art, the utlity model has simplicity of design, good braking effect, advantage such as widely applicable.
Description of drawings
Fig. 1 is stabilised bath fluctuation brake device structure and scheme of installation.
Fig. 2 is the outline drawing of ungulate yoke in the stabilised bath fluctuation brake apparatus.
Fig. 3 is the Distribution of Magnetic Field schematic diagram between ungulate yoke two magnetic heads.
In Fig. 1,1 is submersed nozzle, and 2,3 are the left and right hole that spues, and 4,5 is left and right coil windings, and 6,7 is left and right ungulate yoke, and 8,9 is left and right refractory slab, and 10,11 is left and right stainless steel stent.
The specific embodiment
With reference to Fig. 1, brake apparatus of the present utility model comprises: the left coil winding 4 of hole one side that spues on the left side of submersed nozzle 1, left ungulate yoke 6, left refractory slab 8 and left socle 10; The right coil windings 5 of hole 3 one sides that spue on the right side of submersed nozzle 1, right ungulate yoke 7, right refractory slab 9 and right support 11.About the magnetic field that produces of two groups of coils respectively to about two mouths of a river molten steel plume that the hole spues that spues brake.Direct current flowing through coil winding 4,5 o'clock can produce stronger magnetostatic field, and 6,7 of ungulate yokes are guided magnetic field near 2,3 positions, hole that spue into.Fire-resistant material heat insulation plate 8,9 prevents the influence of the hyperthermia radiation at the molten bath and the mouth of a river to coil simultaneously, and support 10,11 plays bracing or strutting arrangement respectively.Keep left support 10 of left coil winding 4 supports, and left refractory slab 8 is stuck on the left coil winding 4; Keep right support 11 of same right coil windings 5 supports, and right refractory slab 9 is stuck on the right coil windings 5.
With reference to Fig. 2, Fig. 3, for the retardation that makes magnetic field between the yoke head is more effective, ungulate yoke 6,7 is designed to special construction, and two yoke head-clamp angles of homonymy iron core are 0 °～60 °, it is corresponding that this angle and the molten steel plume that leaves the hole that spues are dispersed direction, but not quite identical; Yoke head lower surface is apart from bath surface distance 5～50mm, and concrete size is determined according to technical process.If the yoke head too near bath surface, also will be taked the local cooling provision to the yoke head, be lower than yoke material Curie temperature T to guarantee yoke head temperature
cCoil windings 4,5 is wrapped in two magnetic pole head positions respectively simultaneously, to strengthen the magnetic field intensity of two magnetic pole heads.
Technique scheme is a preferred embodiment of the present utility model.
The effect of this scheme is: magnetic field is concentrated to the submersed nozzle molten steel hole site that spues, the magnetic line of force direction of hole site of spuing is vertical with the MOLTEN STEEL FLOW direction that goes out from the orifice flow that spues, produce bigger electromagnetism drag to form the MOLTEN STEEL FLOW cutting magnetic line, reduce of the impact of molten steel plume the molten bath.Simultaneously, because the molten steel pool level fluctuation that factors such as mold oscillation, the rotation of casting roller cause, as long as near this device, the electromagnetic field that this device produces can produce certain braking action to this part fluctuation equally.
Claims (2)
1. left and right coil windings (4,5) is located in the electro-magnetic braking device of a casting pool liquid fluctuating left and right hole that spues (2,3) that is included in submersed nozzle (1), it is characterized in that: left and right coil windings (4,5) places bath surface top, submersed nozzle both sides, and be provided with left and right ungulate yoke (6,7), left and right refractory slab (8,9), left and right stainless steel stent (10,11); Hole (2) one sides that spue on the left side of submersed nozzle (1) are provided with left coil winding (4), left ungulate yoke (6), left refractory slab (8) and left stainless steel stent (10); Hole (3) one sides that spue on submersed nozzle (1) right side are provided with right coil windings (5), right ungulate yoke (7), refractory slab (9) and right stainless steel stent (11), two groups of coil windings (4,5) producing magnetic field brakes the molten steel plume respectively, relative position between them: submersed nozzle (1) is positioned at the center, its underpart is a left side, the hole (2 that spues, the right side, 3), an electromagnetism left side is set above bath surface, right coil windings (4,5), left coil winding (4) stainless steel stent (10) that keeps left supports, left side refractory slab (8) is stuck on the left coil winding (4), same right coil windings (5) stainless steel stent (11) of keeping right supports, and right refractory slab (9) is stuck on the right coil windings (5).
2. the electro-magnetic braking device of casting pool liquid fluctuating according to claim 1 is characterized in that two yoke head-clamp angles of the homonymy iron core of ungulate yoke (6,7) are 0 °～60 °, and end distance bath surface distance is 5～50mm under the yoke head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01254464 CN2504014Y (en) | 2001-10-31 | 2001-10-31 | Electromagnetic brake of continuous cast molten pool liquid wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01254464 CN2504014Y (en) | 2001-10-31 | 2001-10-31 | Electromagnetic brake of continuous cast molten pool liquid wave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2504014Y true CN2504014Y (en) | 2002-08-07 |
Family
ID=33663770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01254464 Expired - Lifetime CN2504014Y (en) | 2001-10-31 | 2001-10-31 | Electromagnetic brake of continuous cast molten pool liquid wave |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2504014Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100519818C (en) * | 2006-05-30 | 2009-07-29 | 宝山钢铁股份有限公司 | Electromagnetic assistant dip coating method and device |
| CN101868311A (en) * | 2007-11-16 | 2010-10-20 | 住友金属工业株式会社 | Electromagnetic coil device for use of in-mold molten steel capable of serving both as electromagnetic stir and electromagnetic brake |
| CN101868312B (en) * | 2007-11-16 | 2012-07-18 | 住友金属工业株式会社 | Electromagnetic coil device for use of in-mold molten steel capable of serving both as electromagnetic stir and electromagnetic brake |
| CN114734005A (en) * | 2022-03-22 | 2022-07-12 | 安徽工业大学 | Electromagnetic braking device and method for controlling molten steel flow in tundish |
| CN114833332A (en) * | 2022-04-14 | 2022-08-02 | 一重集团大连工程技术有限公司 | Ladle nozzle flow adjusting device |
-
2001
- 2001-10-31 CN CN 01254464 patent/CN2504014Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100519818C (en) * | 2006-05-30 | 2009-07-29 | 宝山钢铁股份有限公司 | Electromagnetic assistant dip coating method and device |
| CN101868311A (en) * | 2007-11-16 | 2010-10-20 | 住友金属工业株式会社 | Electromagnetic coil device for use of in-mold molten steel capable of serving both as electromagnetic stir and electromagnetic brake |
| CN101868312B (en) * | 2007-11-16 | 2012-07-18 | 住友金属工业株式会社 | Electromagnetic coil device for use of in-mold molten steel capable of serving both as electromagnetic stir and electromagnetic brake |
| CN101868311B (en) * | 2007-11-16 | 2012-11-28 | 住友金属工业株式会社 | Electromagnetic coil device for use of in-mold molten steel capable of serving both as electromagnetic stir and electromagnetic brake |
| CN114734005A (en) * | 2022-03-22 | 2022-07-12 | 安徽工业大学 | Electromagnetic braking device and method for controlling molten steel flow in tundish |
| CN114734005B (en) * | 2022-03-22 | 2024-01-26 | 安徽工业大学 | Electromagnetic braking device and method for controlling molten steel flow in tundish |
| CN114833332A (en) * | 2022-04-14 | 2022-08-02 | 一重集团大连工程技术有限公司 | Ladle nozzle flow adjusting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4016926A (en) | Electro-magnetic strirrer for continuous casting machine | |
| CA2015573C (en) | Apparatus and method for continuous casting | |
| GB1454052A (en) | Continuous casting method and apparatus therefor | |
| JP3904226B2 (en) | Metal vertical continuous casting method using electromagnetic field and casting equipment for its implementation | |
| EP3441158B1 (en) | Vertical electromagnetic braking device for controlling flow of molten steel in continuous casting crystallizer | |
| CN2504014Y (en) | Electromagnetic brake of continuous cast molten pool liquid wave | |
| CN206662224U (en) | Electromagnetic mixing apparatus for continuous casting crystallizer for plate billet | |
| JP4591156B2 (en) | Steel continuous casting method | |
| JPH0555220B2 (en) | ||
| KR20130075785A (en) | Electromagnetic braking device on continuous casting molds | |
| CN201211558Y (en) | Electromagnetic braking device for controlling molten metal flow in continuous casting crystallizer | |
| CN201217067Y (en) | Electromagnetic control apparatus for flow field of continuous casting crystallizer | |
| CN203621423U (en) | Electromagnetism braking device for centralizing magnetic area in continuous casting crystallizer | |
| JPS61186150A (en) | Casting method by suspension in electromagnetic field | |
| JP3417871B2 (en) | Continuous casting method of steel using static magnetic field | |
| JPS59101261A (en) | Continuous casting method with which flow of molten steel is braked by static magnetic field | |
| US3746074A (en) | Apparatus for regulating the solidification of the liquid core in a continuous casting | |
| CN201313158Y (en) | Electromagnetic brake sheet billet choanoid crystallizer continuous-cast device | |
| JP3253012B2 (en) | Electromagnetic brake device for continuous casting mold and continuous casting method using the same | |
| JPS61199557A (en) | Device for controlling flow rate of molten steel in mold for continuous casting | |
| CN2420085Y (en) | Built-in soft contact flowing control crystallizer | |
| JP3966054B2 (en) | Continuous casting method of steel | |
| JP3088917B2 (en) | Continuous casting method of molten metal | |
| JPS60137558A (en) | Electromagnetic stirrer for continuous casting machine | |
| JP2003275849A (en) | Method for producing continuously cast slab |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20111031 Granted publication date: 20020807 |