CN102974791A - Steel strip feeding system of continuous casting crystallizer - Google Patents
Steel strip feeding system of continuous casting crystallizer Download PDFInfo
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- CN102974791A CN102974791A CN2012105659603A CN201210565960A CN102974791A CN 102974791 A CN102974791 A CN 102974791A CN 2012105659603 A CN2012105659603 A CN 2012105659603A CN 201210565960 A CN201210565960 A CN 201210565960A CN 102974791 A CN102974791 A CN 102974791A
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- steel band
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Abstract
The invention belongs to the field of metallurgy, and particularly relates to a steel strip feeding system of a continuous casting crystallizer. The system comprises a guiding pipe (2), an electromagnetic vibrator (3), an intermediate tank (4) and a crystallizer (7), wherein a steel strip (1) enters the electromagnetic vibrator (3) from the guiding pipe (2), and then enters the crystallizer (7); when the steel strip (1) is fed into the crystallizer (7), the electromagnetic vibrator (3) gives forced resonance to the steel strip (1) by dint of an electromagnetic effect; the guiding pipe (2) adopts an i type; an opening sealing clamp (8) is fixed in a longitudinal opening of the guiding pipe (2); and one end of the clamp (8) can rotate by surrounding a rotating shaft, and the other end of the clamp (8) is connected with a locking piece (11) via a locking notch (10). The steel strip feeding system can quickly exchange steel strips, so that continuous and smooth feeding of the steel strips in a continuous casting process is guaranteed, the vibration energy is prevented from being transferred to an opposite direction to fused masses, the traction is stable, cast metals are cooled evenly, and the feeding quantity of the steel strips is proper.
Description
Technical field
The invention belongs to metallurgical category, relate in particular to a kind of continuous cast mold and feed the steel band system, both can be used for continuous casting billet, also can be used for liquid metal alloy and smelt and degenerative treatments.
Background technology
Crystallizer is fed steel band system with certain thickness flexible strip feeding crystallizer, utilize the melting heat absorption of steel band in melt, change the temperature field of melt in the crystallizer, reduce the degree of superheat and the temperature field thermograde of melt in the crystallizer, utilize simultaneously the mechanical movement of steel band to come broken melt arborescent structure, increase the forming core particle of grain growth, to improve the strand equiaxial crystal ratio, realize a kind of possible technique of nearly equiax crystal strand, loose to the strand segregation that occurs easily in the continuous casting process, defects i.e.cracks also can play fine improvement effect.
The continuous cast method of patent WO2004012882A1 and device for carrying out said comprise the continuous casting of metals crystallization apparatus, feed the parts of molten metal to crystallizer.Feed the mechanism assembly that can consume cold material to molten metal, and make the cold material of consuming of contactless electromagnetic vibrator pattern and force humorous vibration source.In above-mentioned method, use contactless electromagnetic vibrator to guarantee to consume enough large amplitudes of cold material, thereby guaranteed rapid melting, the reduction molten metal temperature of cold material, the corresponding continuous casting ingot structure of having improved.But use said method also to find some shortcomings: (1) is difficult to quick-replaceable and can consumes cold material volume and be difficult to guarantee can consume uninterruptedly feeding of cold material in the casting process; (2) said method changes along with the change in location on the relative crystallizer molten metal of electromagnetic vibrator surface for the impact effect of continuous casting ingot structure; (3) it is not very steady can consuming that cold material moves in guide pipe; (4) the steel band feed quantity is not suitable for often can causing strand core rarefaction defect.
Summary of the invention
The present invention is intended to overcome the deficiencies in the prior art part and a kind of fast changeable steel band is provided, guarantee that steel band is uninterruptedly steadily fed in the casting process, stop vibrational energy to the opposite direction transmission of melt, tractive is stable, the casting metals cooling is even, and the suitable continuous cast mold of steel band feed quantity is fed the steel band system.
For solving the problems of the technologies described above, the present invention realizes like this.
Continuous cast mold is fed the steel band system, and it comprises guide pipe, electromagnetic vibrator, pans and crystallizer; Steel band enters electromagnetic vibrator from guide pipe and enters crystallizer again, sends into steel band to crystallizer; Molten metal is constantly sent into crystallizer from pans through the immersed nozzle that fixedly connects bottom pans, can constantly be pulled out from crystallizer for the semifinished product of next step processing; When sending into steel band to crystallizer, give described steel band with mandatory resonance by the iron acting electromagnetic vibrator of electromagnetism; Described guide pipe adopts "] " type; Longitudinal opening place at described guide pipe is fixed with the sealing jig; One end of described jig can rotate around the axis, and its other end joins through locking notch and locking member.
As a kind of preferred version, the present invention from described electromagnetic vibrator lower roll wheel axle center along the discharging direction to crystallizer λ/2 of distance L=(n-1) on molten metal surface; Wherein: n is any integer; λ is steel band resonance wave wavelength.
As another kind of preferred version, the ratio of the sectional area of feeding steel band of the present invention and strand sectional area is 0.8～1.5%.
The present invention is by adopting ì type guide pipe and be fixed with the combining structure such as sealing jig at the longitudinal opening place of guide pipe, steel band can be fast from wherein taking out, and can guarantee to metal bath to the stationarity of sending steel band.The present invention from described electromagnetic vibrator lower roll wheel axle center along the discharging direction to crystallizer λ/2 of distance L=(n-1) on molten metal surface can guarantee that casting process is normally stable, can not cause fluctuation in the crystallizer metal surface, metal in the condensation when having avoided to consume cold material yet and sending into molten metal.The ratio of the sectional area of feeding steel band of the present invention and strand sectional area is 0.8～1.5%, continuous casting billet structure is affected than the steel band feeding by studying different feedings, suitable feeding ratio to feeding steel band in the molten steel crystallizer is 0.8～1.5%, and excessive feeding ratio can cause strand core rarefaction defect.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is guide pipe structural representation of the present invention.
Among the figure: 1, steel band; 2, guide pipe; 3, electromagnetic vibrator; 4, pans; 5, molten metal; 6, immersed nozzle; 7, crystallizer; 8, jig; 10, locking notch; 11, locking member; 12, screw rod; 13, nut.
The specific embodiment
As shown in the figure, continuous cast mold is fed the steel band system, and it comprises guide pipe 2, electromagnetic vibrator 3, pans 4 and crystallizer 7; Steel band 1 enters electromagnetic vibrator 3 from guide pipe 2 and enters crystallizer 7 again, sends into steel band 1 to crystallizer 7; Molten metal 5 is constantly sent into crystallizer 7 from pans 4 warps with the immersed nozzle 6 that pans 4 bottoms fixedly connect, and can constantly be pulled out from crystallizer 7 for the semifinished product of next step processing; When sending into steel band 1 to crystallizer 7, give described steel band 1 with mandatory resonance by the iron acting electromagnetic vibrator 3 of electromagnetism; It is characterized in that described guide pipe 2 adopts the ì type; Be fixed with sealing jig 8 at the longitudinal opening place of described guide pipe 2; One end of described jig 8 can rotate around the axis, and its other end joins with locking member 11 through locking notch 10.When concrete operations, after steel band is inserted guide pipe 2, jig 8 is rotated around the rotating shaft of guide pipe 2 lower ends, locking notch 10 stretches into the screw rod 12 on the locking member 11, the locking that realizes jig 8 by the nut 13 that screws on the screw rod 12.
The present invention is λ/2 of the distance L on molten metal surface 7=(n-1) from described electromagnetic vibrator 3 lower roll wheel axle center along the discharging direction to crystallizer; Wherein: n is any integer; λ is steel band resonance wave wavelength.
The ratio of the sectional area of feeding steel band 1 of the present invention and strand sectional area is 0.8～1.5%, and when practical operation, the sectional area of feeding steel band 1 and the ratio of strand sectional area can adopt 1%.
The above is the preferred embodiment of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. continuous cast mold is fed the steel band system, and it comprises guide pipe (2), electromagnetic vibrator (3), pans (4) and crystallizer (7); Steel band (1) enters electromagnetic vibrator (3) from guide pipe (2) and enters crystallizer (7) again, sends into steel band (1) to crystallizer (7); Molten metal (5) is constantly sent into crystallizer (7) from pans (4) through the immersed nozzle (6) that fixedly connects bottom pans (4), can constantly be pulled out from crystallizer (7) for the semifinished product of next step processing; When sending into steel band (1) to crystallizer (7), give described steel band (1) with mandatory resonance by the iron acting electromagnetic vibrator of electromagnetism (3); It is characterized in that described guide pipe (2) adopts the ì type; Be fixed with sealing jig (8) at the longitudinal opening place of described guide pipe (2); One end of described jig (8) can rotate around the axis, and its other end joins through locking notch (10) and locking member (11).
2. continuous cast mold according to claim 1 is fed the steel band system, it is characterized in that: λ/2 of the distance L on molten metal surface (7) from described electromagnetic vibrator (3) lower roll wheel axle center along the discharging direction to crystallizer=(n-1); Wherein: n is any integer; λ is steel band resonance wave wavelength.
3. continuous cast mold according to claim 2 is fed the steel band system, and it is characterized in that: the sectional area of described feeding steel band (1) and the ratio of strand sectional area are 0.8～1.5%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210565960.3A CN102974791B (en) | 2012-12-24 | 2012-12-24 | Continuous cast mold feeds steel band system |
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|---|---|---|---|
| CN201210565960.3A CN102974791B (en) | 2012-12-24 | 2012-12-24 | Continuous cast mold feeds steel band system |
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| CN102974791A true CN102974791A (en) | 2013-03-20 |
| CN102974791B CN102974791B (en) | 2018-04-20 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325100A (en) * | 2014-11-18 | 2015-02-04 | 上海东震冶金工程技术有限公司 | Novel method for feeding material to center of crystallizer for continuous casting |
| CN104525884A (en) * | 2014-12-22 | 2015-04-22 | 营口东邦冶金设备耐材有限公司 | Continuous casting method capable of increasing yield of easily oxidized alloy and equiaxial crystal rate of casting blank |
| CN105033216A (en) * | 2015-08-26 | 2015-11-11 | 东北大学 | Method for determining steel belt feeding process parameter of crystallizer in thick slab continuous casting process |
| CN105149536A (en) * | 2015-09-08 | 2015-12-16 | 东北大学 | Device and method for deslagging in steel strip feeding of gas shield continuous casting crystallizer |
| CN105983670A (en) * | 2015-01-28 | 2016-10-05 | 宝山钢铁股份有限公司 | Method for improving internal quality of casting blank by composite intervention |
| CN107900298A (en) * | 2017-11-10 | 2018-04-13 | 首钢集团有限公司 | A kind of crystallizer for producing high-quality continuous casting steel billet feeds band device |
| CN108393450A (en) * | 2017-02-05 | 2018-08-14 | 鞍钢股份有限公司 | Device and method for feeding steel strip to tundish |
| CN112122567A (en) * | 2020-09-07 | 2020-12-25 | 东北大学 | Method for improving solidification quality of casting blank by feeding stainless steel ladle core wire into crystallizer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104325100A (en) * | 2014-11-18 | 2015-02-04 | 上海东震冶金工程技术有限公司 | Novel method for feeding material to center of crystallizer for continuous casting |
| CN104325100B (en) * | 2014-11-18 | 2016-05-11 | 上海东震冶金工程技术有限公司 | A kind of Novel continuous casting crystallizer center feeding method |
| CN104525884A (en) * | 2014-12-22 | 2015-04-22 | 营口东邦冶金设备耐材有限公司 | Continuous casting method capable of increasing yield of easily oxidized alloy and equiaxial crystal rate of casting blank |
| CN105983670A (en) * | 2015-01-28 | 2016-10-05 | 宝山钢铁股份有限公司 | Method for improving internal quality of casting blank by composite intervention |
| CN105033216A (en) * | 2015-08-26 | 2015-11-11 | 东北大学 | Method for determining steel belt feeding process parameter of crystallizer in thick slab continuous casting process |
| CN105149536A (en) * | 2015-09-08 | 2015-12-16 | 东北大学 | Device and method for deslagging in steel strip feeding of gas shield continuous casting crystallizer |
| CN108393450A (en) * | 2017-02-05 | 2018-08-14 | 鞍钢股份有限公司 | Device and method for feeding steel strip to tundish |
| CN107900298A (en) * | 2017-11-10 | 2018-04-13 | 首钢集团有限公司 | A kind of crystallizer for producing high-quality continuous casting steel billet feeds band device |
| CN112122567A (en) * | 2020-09-07 | 2020-12-25 | 东北大学 | Method for improving solidification quality of casting blank by feeding stainless steel ladle core wire into crystallizer |
| CN112122567B (en) * | 2020-09-07 | 2021-07-09 | 东北大学 | A method for feeding stainless steel cored wire to a mold to improve the solidification quality of a cast slab |
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| CN102974791B (en) | 2018-04-20 |
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Effective date of registration: 20230208 Address after: 8-1-6, No.34 Xiangyangli, Dashiqiao, Yingkou, Liaoning 115100 Patentee after: Liu Xinyu Address before: 115100 Xinfeng Street Xinlianli, Gangdu Administrative District, Dashiqiao City, Yingkou City, Liaoning Province Patentee before: YINGKOU DSMK TECHNOLOGY DEVELOPMENT Co.,Ltd. |