CN204353468U - A kind of continuous casting production improving molten steel flow field - Google Patents
A kind of continuous casting production improving molten steel flow field Download PDFInfo
- Publication number
- CN204353468U CN204353468U CN201420834295.8U CN201420834295U CN204353468U CN 204353468 U CN204353468 U CN 204353468U CN 201420834295 U CN201420834295 U CN 201420834295U CN 204353468 U CN204353468 U CN 204353468U
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- Prior art keywords
- river
- mouth
- tundish
- flow
- barricade
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 32
- 239000010959 steel Substances 0.000 title claims abstract description 32
- 238000009749 continuous casting Methods 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000011010 flushing procedure Methods 0.000 claims 1
- 230000003749 cleanliness Effects 0.000 abstract description 5
- 238000007667 floating Methods 0.000 abstract description 5
- 238000005406 washing Methods 0.000 abstract description 3
- 238000005266 casting Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 239000010813 municipal solid waste Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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- Continuous Casting (AREA)
Abstract
Improve a continuous casting production for molten steel flow field, belong to continuous casting installation for casting technical field, for improving the molten steel flow field of continuous casting production.The utility model adds the flow straightener degree of depth and the flow straightener Sidewall Height of tundish, arranges barricade between the 1# mouth of a river and the 2# mouth of a river simultaneously, increases gear dam between the 2# mouth of a river and the 3# mouth of a river.Increasing the flow straightener degree of depth of tundish, alleviate steel stream washing away flow straightener, simultaneously by changing the path of flow field flow, overall dead band ratio being reduced; Increase flow straightener Sidewall Height, the short-circuit flow at the 1# mouth of a river can be avoided; Avoid the district that liquidates after increasing barricade and gear dam, and form three circulation in tundish, be conducive to inclusion floating, and the flow field diversity factor at four mouths of a river is reduced, flow field is more even.The utility model optimizes Tundish Flow Field by changing the flow straightener degree of depth and profile, increase barricade and keeping off dam, facilitates steel inclusion and floats, reduce steel Large Inclusions content, improve cleanliness.
Description
Technical field
The utility model relates to a kind of continuous casting production improving molten steel flow field, belongs to metallurgical continuous casting equipment technical field.
Background technology
Tundish is as connecting the memory of molten steel of ladle and crystallizer and distributor is the important ring improving output of steel and quality.No matter carrying out smoothly for continuous casting operation, or guarantee molten steel quality is suited the requirements, the effect of tundish is all very important.Basic physical phenomenon in tundish is the flowing of molten steel, in molten steel field trash removal, prevent the various metallurgical processes such as the homogenising of molten steel slag, temperature and composition be all flowing molten steel in carry out.Along with going deep into of tundish metallurgy research, how to control the emphasis that tundish flow field has become research work day by day.There are some researches show that adding barricade at tundish keeps off dam, filter, turbulence inhibitor etc., effectively can control the flow behavior of molten steel in tundish, the temperature of even molten steel and composition, improve the clearance of field trash in molten steel, and then can improve the quality of continuous casting billet.
Left and right two parts full symmetric of general continuous casting tundish, and be not communicated with, adopt two mouths of a river ladle to pour into a mould during cast simultaneously, only have a simple flow straightener in tundish, there is no other flow control devices.In order to improve continuous casting billet quality, giving full play to the metallurgical effect of tundish, improving the cleanliness factor of strand, being necessary to improve the structure of this tundish.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of continuous casting production improving molten steel flow field, and this continuous casting production can change the flow field of tundish molten steel, promotes inclusion floating, reduces inclusion content of steel, improves cleanliness.
The technical scheme solved the problems of the technologies described above is:
A kind of continuous casting production improving molten steel flow field, flow straightener and the 1# mouth of a river, the 2# mouth of a river, the 3# mouth of a river, the 4# mouth of a river is had in its tundish, its improvements are, between the 1# mouth of a river and the 2# mouth of a river, barricade is set, gear dam is increased between the 2# mouth of a river and the 3# mouth of a river, barricade is connected with the two side of tundish respectively with the two ends on gear dam, barricade is parallel with gear dam, the upper end of barricade flushes with the suitable for reading of tundish, gap is had at the bottom of the lower end of barricade and the bag of tundish, be connected at the bottom of the gear lower end on dam and the bag of tundish, the upper end on gear dam is positioned at the lower sidewall of tundish.
The above-mentioned continuous casting production improving molten steel flow field, described barricade plane is 106 degree with gear dam plane and tundish near the angle of the sidewall at four mouths of a river, and gear dam facing is inclined-plane to the sidewall at the 2# mouth of a river, and the angle of the bottom surface of inclined-plane and tundish is 60 degree.
Usefulness of the present utility model is:
The utility model adds the flow straightener degree of depth of tundish and the flow straightener Sidewall Height near the 1# mouth of a river, arranges barricade between the 1# mouth of a river and the 2# mouth of a river simultaneously, increases gear dam between the 2# mouth of a river and the 3# mouth of a river.Increasing the flow straightener degree of depth of tundish, alleviate steel stream washing away flow straightener by the drag effect of molten steel, alleviate the impact bottom to flow straightener, simultaneously by changing the path of flow field flow, overall dead band ratio being reduced; Increase flow straightener Sidewall Height, the short-circuit flow at the 1# mouth of a river can be avoided, make 1# mouth of a river stagnation time lengthening; Avoid the district that liquidates after increasing barricade and gear dam, and form three circulation in tundish, be conducive to inclusion floating, and the flow field diversity factor at four mouths of a river is reduced, flow field is more even.The utility model by change the flow straightener degree of depth and flow straightener profile, increase barricade and Tundish Flow Field is optimized on gear dam, facilitate steel inclusion and float, reduce steel Large Inclusions content, improve cleanliness.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, mark is as follows: tundish 1, flow straightener 2, flow straightener sidewall 3, barricade 4, gear dam 5, the 1# mouth of a river 6, the 2# mouth of a river 7, the 3# mouth of a river 8, the 4# mouth of a river 9.
Detailed description of the invention
Show in figure, in tundish 1, have flow straightener 2 and the 1# mouth of a river 6, the 2# mouth of a river 7, the 3# mouth of a river 8, the 4# mouth of a river 9.
Show in figure, flow straightener 1 degree of depth is increased to 260mm, the flow straightener sidewall 3 near the 1# mouth of a river 6 is highly increased 240mm simultaneously.Increasing flow straightener 2 degree of depth, alleviate steel stream washing away flow straightener 2 by the drag effect of molten steel, alleviate the impact bottom to flow straightener 2, simultaneously by changing the path of flow field flow, overall dead band ratio being reduced.Increase flow straightener sidewall 3 height, the short-circuit flow at the 1# mouth of a river 6 can be avoided, make the 1# mouth of a river 6 stagnation time lengthening.
Show in figure, arrange barricade 4 between the 1# mouth of a river 6 and the 2# mouth of a river 7, barricade 4 is connected with the two side of tundish 1 respectively with the two ends on gear dam 5, and the upper end of barricade 4 flushes with the suitable for reading of tundish 1, has gap at the bottom of the lower end of barricade 4 and the bag of tundish 1.
Show in figure, increase gear dam 5 between the 2# mouth of a river 7 and the 3# mouth of a river 8, the lower end on gear dam 5 is connected with at the bottom of the bag of tundish 1, and the upper end on gear dam 5 is positioned at the lower sidewall of tundish 1.
Show in figure, barricade 4 is parallel with gear dam 5, and barricade plane is 106 degree with gear dam plane and tundish 1 near the angle of the sidewall at four mouths of a river, and the sidewall of gear dam 5 in the face of the 2# mouth of a river 7 is inclined-plane, and the angle of the bottom surface of inclined-plane and tundish 1 is 60 degree.
Avoid the district that liquidates after increasing barricade 4 and gear dam 5, and form three circulation in tundish, be conducive to inclusion floating, and the flow field diversity factor at four mouths of a river is reduced, flow field is more even.
The utility model, by improving Tundish Flow Field, avoids the short-circuit flow at the 1# mouth of a river, eliminates and liquidates district and define three circulation, reduce the flow field diversity factor at four mouths of a river, be conducive to the floating of field trash, improve Cleanliness of Molten Steel.Make overall dead band ratio be reduced to 16.6% after optimization from 38.9% of prototype by improving Tundish Flow Field, dead band ratio reduces 57.33%; Piston region ratio is increased to 34.1% by 18.3% of prototype simultaneously, and piston flow ratio adds 86.34%; Barricade 4, gear dam 5 combine the optimum tundish structure inclusion removal energy force rate obtained and originally improve 16.18%.
The size of an embodiment of the present utility model is as follows:
Flow straightener 2 degree of depth is increased to 260mm, and the flow straightener sidewall 3 near the 1# mouth of a river 6 is highly increased 240mm; Barricade 4 is apart from bag end 300mm, and barricade 4 thickness is 83mm; Gear dam 5 height 120mm, gear dam 5 thickness is 243mm; Gear dam 5 is 360mm with the distance of barricade 4.
Claims (2)
1. one kind is improved the continuous casting production of molten steel flow field, flow straightener (2) and the 1# mouth of a river (6) are had in its tundish (1), the 2# mouth of a river (7), the 3# mouth of a river (8), the 4# mouth of a river (9), it is characterized in that: barricade (4) is set between the 1# mouth of a river (6) and the 2# mouth of a river (7), gear dam (5) is increased between the 2# mouth of a river (7) and the 3# mouth of a river (8), barricade (4) is connected with the two side of tundish (1) respectively with the two ends of gear dam (5), barricade (4) is parallel with gear dam (5), the upper end of barricade (4) and suitable for reading the flushing of tundish (1), gap is had at the bottom of the lower end of barricade (4) and the bag of tundish (1), the lower end of gear dam (5) is connected with at the bottom of the bag of tundish (1), the upper end of gear dam (5) is positioned at the lower sidewall of tundish (1).
2. the continuous casting production improving molten steel flow field according to claim 1, it is characterized in that: the angle of the sidewall at described barricade plane and gear dam plane and close four mouths of a river of tundish (1) is 106 degree, the sidewall of gear dam (5) in the face of the 2# mouth of a river (7) is inclined-plane, and the angle of the bottom surface of inclined-plane and tundish (1) is 60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420834295.8U CN204353468U (en) | 2014-12-25 | 2014-12-25 | A kind of continuous casting production improving molten steel flow field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420834295.8U CN204353468U (en) | 2014-12-25 | 2014-12-25 | A kind of continuous casting production improving molten steel flow field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204353468U true CN204353468U (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420834295.8U Expired - Fee Related CN204353468U (en) | 2014-12-25 | 2014-12-25 | A kind of continuous casting production improving molten steel flow field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204353468U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676119A (en) * | 2019-01-14 | 2019-04-26 | 包头钢铁（集团）有限责任公司 | A kind of tundish and its building method of barricade dam structure |
-
2014
- 2014-12-25 CN CN201420834295.8U patent/CN204353468U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676119A (en) * | 2019-01-14 | 2019-04-26 | 包头钢铁（集团）有限责任公司 | A kind of tundish and its building method of barricade dam structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 067102 A block 520, Luanhe town finance square, Shuangluan District, Chengde, Hebei Patentee after: CHENGDE BRANCH OF HBIS Group Address before: 067102 Luanhe town finance square, Shuangluan District, Chengde, Hebei, Hebei iron and steel Limited by Share Ltd Chengde branch Patentee before: HEBEI IRON AND STEEL Co.,Ltd. CHENGDE BRANCH |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |