CN202479490U - Swirl long nozzle for continuous casting - Google Patents
Swirl long nozzle for continuous casting Download PDFInfo
- Publication number
- CN202479490U CN202479490U CN2012200732701U CN201220073270U CN202479490U CN 202479490 U CN202479490 U CN 202479490U CN 2012200732701 U CN2012200732701 U CN 2012200732701U CN 201220073270 U CN201220073270 U CN 201220073270U CN 202479490 U CN202479490 U CN 202479490U
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- CN
- China
- Prior art keywords
- eddy flow
- long nozzle
- continuous casting
- guide groove
- flow guide
- 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
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- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The utility model discloses a swirl long nozzle for continuous casting, comprising a long nozzle, wherein the inner wall of the long nozzle (1) is provided with a plurality of swirl guide slots (2) which are spirally distributed on the inner wall of the long nozzle. The swirl long nozzle for the continuous casting, provided by the utility model, has advantages that the manufacturing process is simple and the production cost is reduced.
Description
Technical field
The utility model relates to the continuous casting technology field, and particularly a kind of continuous casting is used the eddy flow long nozzle.
Background technology
In continuous casting process, the molten steel in the ladle injects tundish through long nozzle, flows in the crystallizer via submersed nozzle through flow control device (as: slide plate, stopper), finally flows out crystallizer, is frozen into steel billet.Tundish has homogenizing liquid steel temperature and composition, and removes the function of field trash in the molten steel.And make molten steel produce eddy flow, help these field trashes and assemble removal.
Chinese patent ZL200510046994.1 has announced a kind of ladle side opening eddy flow long nozzle that is used for the continuous casting tundish, the down outlet sealing and at least one side opening is set on the sidewall of the mouth of a river of this eddy flow long nozzle, and the special tectonic through side opening makes molten steel produce eddy flow.Chinese patent ZL200510047290.6 has announced a kind of electromagnetic eddy flow downspout; Apply at least one rotary electromagnetic field in the outside of ladle long nozzle; At least one electromagnetic eddy flow device is installed around promptly at the mouth of a river; Simultaneously inside and outside the electromagnetic eddy flow device water collar is housed, and overall fixed is at one movably on the mechanical device, thereby receives powerful electromagnetic field effect to produce eddy current during through the mouth of a river when steel flow.
Above-mentioned eddy flow long nozzle, perhaps owing to the structure of big about-face long nozzle, mouth of a river bottom seal has increased long nozzle and has received ladle molten steel to impact the danger that generation breaks off the base; Perhaps need install the electromagnetic eddy flow device additional, under the condition of space anxiety, both increase application cost at the scene, increase the mounting, commissioning and maintenance difficulty again; Therefore, be unfavorable for extensive use in continuous casting is produced.
The utility model content
The utility model technical problem to be solved provides a kind of continuous casting and uses the eddy flow long nozzle, solves the problem that eddy flow long nozzle complex manufacturing technology, cost that prior art provides are high, be difficult to extensive use.
For solving the problems of the technologies described above, the utility model provides a kind of continuous casting to use the eddy flow long nozzle, comprises long nozzle, has the eddy flow guide groove on the said long nozzle inwall, and said eddy flow guide groove shape in the shape of a spiral is distributed on the said long nozzle inwall.
Further, the number of said eddy flow guide groove comprises 2.
Further, the adjacent spacing of said eddy flow guide groove equates.
Further, an end of said eddy flow guide groove is positioned at the import of said long nozzle; The other end of said eddy flow guide groove is positioned at the outlet of said long nozzle.
Further, the lead angle of said eddy flow guide groove is between 40 ° to 85 °.
Further, the groove cross sectional shape of said eddy flow guide groove comprises semicircle, half elliptic, rectangle and trapezoidal.
Further, said cross sectional shape is semicircular groove, its radius at 5mm between the 15mm.
Further, said cross sectional shape is half elliptic groove, and between the 15mm, between the 30mm, the major and minor axis length ratio is greater than 1 at 10mm for the major axis of opening at 5mm for the degree of depth of its minor axis radius.
Further, the groove that said cross sectional shape is rectangular or trapezoidal, it is 5mm to 15mm deeply, and the base is wide to be 8mm to 40mm, and base and side angle are 90 ° to 150 °.
The continuous casting that the utility model provides is used the eddy flow long nozzle, and manufacture craft is simple, production cost is low.
Description of drawings
The continuous casting that Fig. 1 provides for the utility model embodiment is with the profile of the front view of eddy flow long nozzle part-structure.
Fig. 2 is that continuous casting is with the local expanded view of endoporus in the eddy flow long nozzle among Fig. 1, and its eddy flow guide groove lead angle (angle of helix tangent line and level) is β.
Fig. 3 is the a-a direction part sectioned view of eddy flow guide groove among Fig. 2.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the principle of the utility model is described.
The continuous casting that the utility model that on slab caster, uses provides is used the eddy flow long nozzle, and structure such as Fig. 1 are to shown in Figure 3.The total height of long nozzle 1 is that 1100mm, internal diameter are 110mm.Have the eddy flow guide groove 2 that some adjacent spacings equate from the inlet on the long nozzle 13 on the inwall of the upper edge 4 to outlet simultaneously, for example can be 2, the groove cross sectional shape of eddy flow guide groove 2 can be semicircle, half elliptic, rectangle or trapezoidal simultaneously.When guide groove 2 is 2, when the groove cross sectional shape was trapezoidal, this guide groove 2 is dark, and lead angle β was 60 ° for 7mm, base are 20mm, and base and dual-side angle are 120 °, and shape is distributed on the inwall of long nozzle 1 in the shape of a spiral.
It should be noted last that; The above specific embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to instance the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the spirit and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (9)
1. a continuous casting is used the eddy flow long nozzle, comprises long nozzle, it is characterized in that, has the eddy flow guide groove on the said long nozzle inwall; Said eddy flow guide groove shape in the shape of a spiral is distributed on the inwall of said long nozzle.
2. continuous casting as claimed in claim 1 is used the eddy flow long nozzle, it is characterized in that, the number of said eddy flow guide groove comprises 2.
3. continuous casting as claimed in claim 2 is used the eddy flow long nozzle, it is characterized in that, the adjacent spacing of said eddy flow guide groove equates.
4. use the eddy flow long nozzle like the arbitrary described continuous casting of claim 1 to 3, it is characterized in that an end of said eddy flow guide groove is positioned at the import of said long nozzle; The other end of said eddy flow guide groove is positioned at the outlet of said long nozzle.
5. use the eddy flow long nozzle like the described continuous casting of claim 1 to 3, it is characterized in that, the lead angle of said eddy flow guide groove is between 40 ° to 85 °.
6. use the eddy flow long nozzle like the described continuous casting of claim 1 to 3, it is characterized in that, the groove cross sectional shape of said eddy flow guide groove comprises semicircle, half elliptic, rectangle and trapezoidal.
7. continuous casting as claimed in claim 6 is used the eddy flow long nozzle, it is characterized in that, said cross sectional shape is semicircular groove, its radius at 5mm between the 15mm.
8. continuous casting as claimed in claim 6 is used the eddy flow long nozzle, it is characterized in that, said cross sectional shape is half elliptic groove, and between the 15mm, between the 30mm, the major and minor axis length ratio is greater than 1 at 10mm for the major axis of opening at 5mm for the degree of depth of its minor axis radius.
9. continuous casting as claimed in claim 6 is used the eddy flow long nozzle, it is characterized in that, and the groove that said cross sectional shape is rectangular or trapezoidal, it is 5 mm to 15mm deeply, and the base is wide to be 8 mm to 40mm, and base and side angle are 90 ° to 150 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200732701U CN202479490U (en) | 2012-03-01 | 2012-03-01 | Swirl long nozzle for continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200732701U CN202479490U (en) | 2012-03-01 | 2012-03-01 | Swirl long nozzle for continuous casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202479490U true CN202479490U (en) | 2012-10-10 |
Family
ID=46953951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200732701U Expired - Lifetime CN202479490U (en) | 2012-03-01 | 2012-03-01 | Swirl long nozzle for continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202479490U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110918918A (en) * | 2019-12-05 | 2020-03-27 | 天津钢铁集团有限公司 | Process method for controlling center carbon segregation of bearing steel casting blank |
| CN110961616A (en) * | 2020-02-12 | 2020-04-07 | 重庆大学 | Steel ladle rotational flow generating device |
-
2012
- 2012-03-01 CN CN2012200732701U patent/CN202479490U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110918918A (en) * | 2019-12-05 | 2020-03-27 | 天津钢铁集团有限公司 | Process method for controlling center carbon segregation of bearing steel casting blank |
| CN110961616A (en) * | 2020-02-12 | 2020-04-07 | 重庆大学 | Steel ladle rotational flow generating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee before: Capital Iron & Steel General Company |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |