CN204182907U - There is the brick cup of electromagnetic induction coil - Google Patents

There is the brick cup of electromagnetic induction coil Download PDF

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Publication number
CN204182907U
CN204182907U CN201420645570.1U CN201420645570U CN204182907U CN 204182907 U CN204182907 U CN 204182907U CN 201420645570 U CN201420645570 U CN 201420645570U CN 204182907 U CN204182907 U CN 204182907U
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CN
China
Prior art keywords
brick cup
electromagnetic induction
induction coil
molten steel
cup body
Prior art date
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Expired - Fee Related
Application number
CN201420645570.1U
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Chinese (zh)
Inventor
王学斌
史纯阳
刘兴安
王强
刘铁
赫冀成
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Shandong Iron and Steel Group Co Ltd SISG
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Shandong Iron and Steel Group Co Ltd SISG
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Priority to CN201420645570.1U priority Critical patent/CN204182907U/en
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Abstract

There is a brick cup for electromagnetic induction coil, belong to metallurgical technology field.The utility model provides a kind of brick cup with electromagnetic induction coil.It utilizes electromagnetic inductive heating principle, eddy-current heating is carried out to the iron-carbon alloy in brick cup until part or all of fusing opens the process of watering, thus instead of tradition and open in the process of watering the traditional approach using stuffing sand, significantly improve casting rate, avoid molten steel component to be polluted, improve the cleanliness factor of molten steel, there is stronger use promotional value.The utility model comprises the brick cup body with molten steel passage, is characterized in being provided with electromagnetic induction coil in the brick cup body outside molten steel passage, between electromagnetic induction coil and brick cup body, be provided with thermal insulation layer.

Description

There is the brick cup of electromagnetic induction coil
Technical field
The utility model belongs to metallurgical technology field, is specifically related to a kind of brick cup with electromagnetic induction coil.
Background technology
Along with the application and development of steel-smelting technology, particularly current user is to more and more higher requirement and the international market combination property to steel of steel product quality and the keen competition of price, and the quality of continuous casting billet more and more comes into one's own; The cleanliness factor of strict control molten steel, reduces casting blank defect and has become the important process paid close attention to the most in STEELMAKING PRODUCTION.
Continuous casting produce in ladle casting rate and as assist open the bottleneck that the refractory material stuffing sand watered becomes production high added value metallurgic product, for breaking this bottleneck, Chinese and overseas scholars has made a large amount of research work to how to improve ladle casting rate and reduce the pollution of stuffing sand to molten steel.
The passage when brick cup that traditional brick cup preparation technology produces is only liquid metal circulation.At present, still adopt traditional approach in the world, in metal smelt process, the method for adding stuffing sand in brick cup is watered to carry out industrial opening.The pollution of stuffing sand on molten steel can be caused like this to cause molten steel cleanness to reduce the end product affecting slab quality and then affect follow-up roll forming.
Utility model content
For prior art Problems existing, the utility model provides a kind of brick cup with electromagnetic induction coil.It utilizes electromagnetic inductive heating principle, eddy-current heating is carried out to the iron-carbon alloy in brick cup until part or all of fusing opens the process of watering, thus instead of tradition and open in the process of watering the traditional approach using stuffing sand, significantly improve casting rate, avoid molten steel component to be polluted, improve the cleanliness factor of molten steel, there is stronger use promotional value.
To achieve these goals, the utility model adopts following technical scheme: a kind of brick cup with electromagnetic induction coil, comprise the brick cup body with molten steel passage, be characterized in being provided with electromagnetic induction coil in the brick cup body outside molten steel passage, between electromagnetic induction coil and brick cup body, be provided with thermal insulation layer.
The distance of the bottom of described electromagnetic induction coil and the bottom surface of brick cup body is 1 ~ 150mm.
The distance of the bottom of described electromagnetic induction coil and the bottom surface of brick cup body is 10mm.
Described molten steel passage is made up of conical section, cylindrical section and lower mouth of a river installing hole, and wherein, the opening degree of conical section is 180 ~ 240mm.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model adopts electromagnetic induction heating, utilize the iron-carbon alloy identical with molten steel component to replace stuffing sand simultaneously, effectively prevent the generation of polluting molten steel situation, improve the cleanliness factor of molten steel, be applicable to the technical requirement of industrialized mass clean steel, also improve the casting rate of ladle simultaneously;
2, the iron-carbon alloy amount come into operation calculates in brick cup according to corresponding steel grade model the iron-carbon alloy amount needing to add; Efficiently avoid the fluctuation of solid liquid interface height in brick cup, so just can control the fusing time of iron-carbon alloy more accurately, thus provide corresponding theoretical foundation for the production cycle of iron and steel enterprise's reasonable arrangement continuous casting;
3, the electromagnetic induction coil in brick cup adopts energising copper pipe and compressed inert integral manner to carry out (the logical compressed inert in copper pipe inside), so more reasonably simplify the internal structure of brick cup, the stability of brick cup obtains further reinforcement;
4, between electromagnetic induction coil and brick cup body, be provided with thermal insulation layer, the heat radiation of surrounding environment, heat transfer can be reduced.
Accompanying drawing explanation
Fig. 1 is the structural representation with an embodiment of the brick cup of electromagnetic induction coil of the present utility model;
Fig. 2 is the structural representation with another embodiment of the brick cup of electromagnetic induction coil of the present utility model;
Fig. 3 is the schematic diagram with the manufacturing process of the brick cup of electromagnetic induction coil of the present utility model;
Wherein: 1-ladle drain pan, 2-coil lead, 3-brick cup body, 4-conical section, 5-cylindrical section, 6-molten steel passage, 7-thermal insulation layer, 8-electromagnetic induction coil, mouth of a river installing hole under 9-, 10-arc-shaped convex, 11-brick cup mould, the electromagnetic induction coil after 12-encapsulation.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment one:
As shown in Figure 1, a kind of brick cup with electromagnetic induction coil, comprise the brick cup body 3 with molten steel passage 6, electromagnetic induction coil 8 is provided with in brick cup body 3 outside molten steel passage 6, thermal insulation layer 7 is provided with between electromagnetic induction coil 8 and brick cup body 3, prevent brick cup from using electromagnetic induction coil 8 temperature too high for a long time, have burning phenomenon to produce, also can reduce the heat radiation of surrounding environment, heat transfer; 1100 types that Germany produces that what described thermal insulation layer 7 adopted is are nanometer level microporous can hot felt.The distance of the bottom of described electromagnetic induction coil 8 and the bottom surface of brick cup body 3 is 10mm.The width that described molten steel passage 6 is made up of conical section 4, cylindrical section 5 and lower mouth of a river installing hole 9 not etc., the hollow lumen of surrounding symmetry, the distance of the right side of its center line-spacing brick cup body 3 is 175mm, the top of molten steel passage 6 is conical section 4, the top end opening of conical section 4, flow into end as molten steel, the height of conical section 4 is 50mm, and opening degree is 180mm, the present embodiment does not change brick cup open top degree compared with traditional handicraft, consistent with traditional handicraft opening degree; Flow into end at molten steel and be provided with chamfering, be convenient to the inflow of molten steel, reduce molten steel to the corrosion of brick cup.The below of conical section 4 is provided with cylindrical section 5, and the height of cylindrical section 5 is 158mm, and its diameter is 110mm; Lower mouth of a river installing hole 9 is provided with in the below of cylindrical section 5.Also be provided with an arc-shaped convex 10 at the lowermost end of brick cup body 3, it is highly 68mm, and external diameter is 298mm, and chamfering is R10, and the diameter of the lower mouth of a river installing hole in arc-shaped convex 10 is 186mm.Electromagnetic induction coil 8 adopts energising copper pipe and compressed inert integral manner to carry out, the logical compressed inert in copper pipe inside.
Electromagnetic induction coil 8 is connected with external power source by coil lead 2, and two coil leads 2 need through brick cup body 3.When using at the scene, need on ladle drain pan 1, make a call to two square holes, the size of square hole is determined by the diameter of coil lead 2.Two square hole distances keep within the specific limits (30 ~ 150mm), and after reducing energising, magnetic field influences each other.When installing brick cup of the present utility model, by the square hole of coil lead 2 through ladle drain pan 1, on ladle drain pan 1 the square hole beaten need with refractory material gap to be added to block, and guarantee that coil lead 2 does not contact with steel ladle, the generation of the phenomenon such as electric leakage when preventing from heating ladle, increases leakage field phenomenon.
In the present embodiment, the size of described brick cup body 3 is: long 570mm, wide 350mm, high 420mm.The diameter of electromagnetic induction coil 8 is 155mm, and height is 130mm, and the number of turn is 13 circles, the spacing of adjacent two circles is 3mm, two turn-to-turn high temperature coil mud keep apart generation short circuit when preventing energising, scaling loss coil, and the distance of distance brick cup body 3 upper surface, top of electromagnetic induction coil 8 is 150mm.
Embodiment two:
As shown in Figure 2, a kind of brick cup with electromagnetic induction coil, comprise the brick cup body 3 with molten steel passage 6, electromagnetic induction coil 8 is provided with in brick cup body 3 outside molten steel passage 6, thermal insulation layer 7 is provided with between electromagnetic induction coil 8 and brick cup body 3, prevent brick cup from using electromagnetic induction coil 8 temperature too high for a long time, have burning phenomenon to produce, also can reduce the heat radiation of surrounding environment, heat transfer; 1100 types that Germany produces that what described thermal insulation layer 7 adopted is are nanometer level microporous can hot felt.The distance of the bottom of described electromagnetic induction coil 8 and the bottom surface of brick cup body 3 is 10mm.The width that described molten steel passage 6 is made up of conical section 4, cylindrical section 5 and lower mouth of a river installing hole 9 not etc., the hollow lumen of surrounding symmetry, the distance of the right side of its center line-spacing brick cup body 3 is 175mm, the top of molten steel passage 6 is conical section 4, the top end opening of conical section 4, end is flowed into as molten steel, the height of conical section 4 is 70mm, opening degree is 190mm, the present embodiment increases brick cup open top degree compared with traditional handicraft, its size is determined according to field condition, and selection range is 180 ~ 240mm; Flow into end at molten steel and be provided with chamfering, be convenient to the inflow of molten steel, reduce molten steel to the corrosion of brick cup.The below of conical section 4 is provided with cylindrical section 5, and the height of cylindrical section 5 is 138mm, and its diameter is 110mm; Lower mouth of a river installing hole 9 is provided with in the below of cylindrical section 5.Also be provided with an arc-shaped convex 10 at the lowermost end of brick cup body 3, it is highly 68mm, and external diameter is 298mm, and chamfering is R10, and the diameter of the lower mouth of a river installing hole in arc-shaped convex 10 is 186mm.Electromagnetic induction coil 8 adopts energising copper pipe and compressed inert integral manner to carry out, the logical compressed inert in copper pipe inside.
Electromagnetic induction coil 8 is connected with external power source by coil lead 2, and two coil leads 2 need through brick cup body 3.When using at the scene, need on ladle drain pan 1, make a call to two square holes, the size of square hole is determined by the diameter of coil lead 2.Two square hole distances keep within the specific limits (30 ~ 150mm), and after reducing energising, magnetic field influences each other.When installing brick cup of the present utility model, by the square hole of coil lead 2 through ladle drain pan 1, on ladle drain pan 1 the square hole beaten need with refractory material gap to be added to block, and guarantee that coil lead 2 does not contact with steel ladle, the generation of the phenomenon such as electric leakage when preventing from heating ladle, increases leakage field phenomenon.
In the present embodiment, the size of described brick cup body 3 is: long 570mm, wide 350mm, high 420mm.The diameter of electromagnetic induction coil 8 is 155mm, and height is 130mm, and the number of turn is 13 circles, the spacing of adjacent two circles is 3mm, two turn-to-turn high temperature coil mud keep apart generation short circuit when preventing energising, scaling loss coil, and the distance of distance brick cup body 3 upper surface, top of electromagnetic induction coil 8 is 150mm.
The diameter of described electromagnetic induction coil 8 and the opening degree size of conical section 4 need to support the use with the steel mill's upper and lower mouth of a river used diameter and other related device, and the distance (melting the optimum position of iron-carbon alloy in brick cup) of the bottom of electromagnetic induction coil 8 and the bottom surface of brick cup body 3 needs to draw the best by simulation trial; The size of brick cup mould 11 is according to the large little makings of concrete steel mill brick cup body 3 used, and the opening degree size of conical section 4 obtains optimum value by simulated experiment and field experiment.
The iron-carbon alloy amount come into operation calculates in brick cup according to corresponding steel grade model the iron-carbon alloy amount needing to add; Efficiently avoid the fluctuation of solid liquid interface height in brick cup, so just can control the fusing time of iron-carbon alloy more accurately, thus provide corresponding theoretical foundation for the production cycle of iron and steel enterprise's reasonable arrangement continuous casting.
The described manufacturing process with the brick cup of electromagnetic induction coil, comprises the steps:
Step one: electromagnetic induction coil 8 is packaged in thermal insulation layer 7; The concrete grammar that electromagnetic induction coil 8 is packaged in thermal insulation layer 7 is: pour into after a certain amount of bath of glass stirs evenly in high temperature coil mud and be applied to electromagnetic induction coil 8 surrounding, heat-barrier material is pasted on electromagnetic induction coil 8 and form thermal insulation layer 7, guarantee that electromagnetic induction coil 8 overall package is in heat-barrier material;
Step 2: the electromagnetic induction coil 12 after encapsulation is sling with driving and is suspended in brick cup mould 11, as shown in Figure 3, its lower surface four fine rules be fixed on bottom brick cup mould 11 fix, electromagnetic induction coil 8 will be in balance tension, when preventing from pouring into a mould, electromagnetic induction coil 8 produces because density is little upwards to drift about and causes distance brick cup body 3 bottom surface apart from inaccurate, or electromagnetic induction coil 8 departs from the phenomenon generation of molten steel passage 6; Before cast, the demoulding is convenient in inner for brick cup mould 11 oiling;
Step 3: open shock platforms and pour into a mould, by cast, the electromagnetic induction coil 12 after encapsulation is embedded in the brick cup body 3 outside molten steel passage 6;
Step 4: enter after cast kilning bake the demoulding make encapsulation after electromagnetic induction coil 12 be integrated with brick cup body 3 one-tenth.
The using method with the brick cup of electromagnetic induction coil of the present utility model is:
The utility model uses through " safeguarding by steel-external refining or the calmness-casting operation-bag deslagging-ladle spot check that inclines and (comprise cleaning pocket block blowhole with ladle, Inspection and maintenance slide gate nozzle is changed if desired)-baking ladle-by steel " overall process, when ladle is placed into rotation platform, electromagnetic induction coil 8 of the present utility model is energized, by compressed inert, electromagnetic induction coil 8 is cooled, stream pressure slowly increases to about 0.3 ~ 10.0MPA from 0MPA, make electromagnetic induction coil 8 slowly temperature drop, ensure the service life of electromagnetic induction coil 8, can suitably regulate compressed inert pressure, ensure that electromagnetic induction coil 8 temperature controls below 300 DEG C.When ladle rotate to open water position time, utilize electromagnetic inductive heating principle to heat electromagnetic induction coil 8 in brick cup body 3, the iron-carbon alloy identical with molten steel component in fusing brick cup, completes and opens the process of watering.

Claims (4)

1. there is a brick cup for electromagnetic induction coil, comprise the brick cup body with molten steel passage, it is characterized in that being provided with electromagnetic induction coil in the brick cup body outside molten steel passage, between electromagnetic induction coil and brick cup body, be provided with thermal insulation layer.
2. the brick cup with electromagnetic induction coil according to claim 1, is characterized in that the distance of the bottom of described electromagnetic induction coil and the bottom surface of brick cup body is 1 ~ 150mm.
3. the brick cup with electromagnetic induction coil according to claim 2, is characterized in that the distance of the bottom of described electromagnetic induction coil and the bottom surface of brick cup body is 10mm.
4. the brick cup with electromagnetic induction coil according to claim 1, is characterized in that described molten steel passage is made up of conical section, cylindrical section and lower mouth of a river installing hole, and wherein, the open bottom of conical section is 180 ~ 240mm.
CN201420645570.1U 2014-10-31 2014-10-31 There is the brick cup of electromagnetic induction coil Expired - Fee Related CN204182907U (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104325127A (en) * 2014-10-31 2015-02-04 东北大学 Brick cup with electromagnetic induction coil and manufacturing process of brick cup
CN108356258A (en) * 2018-04-02 2018-08-03 东北大学 A kind of combined type pocket block based on electromagnetic induction heating slag-blocked tapping
CN113523261A (en) * 2020-04-21 2021-10-22 宝山钢铁股份有限公司 Ladle self-opening drainage sand and ladle self-opening method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104325127A (en) * 2014-10-31 2015-02-04 东北大学 Brick cup with electromagnetic induction coil and manufacturing process of brick cup
CN108356258A (en) * 2018-04-02 2018-08-03 东北大学 A kind of combined type pocket block based on electromagnetic induction heating slag-blocked tapping
CN113523261A (en) * 2020-04-21 2021-10-22 宝山钢铁股份有限公司 Ladle self-opening drainage sand and ladle self-opening method thereof

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150304

CF01 Termination of patent right due to non-payment of annual fee