CN205834140U - The dummy bar head at the sheet billet continuous casting insertable mouth of a river - Google Patents
The dummy bar head at the sheet billet continuous casting insertable mouth of a river Download PDFInfo
- Publication number
- CN205834140U CN205834140U CN201620621433.3U CN201620621433U CN205834140U CN 205834140 U CN205834140 U CN 205834140U CN 201620621433 U CN201620621433 U CN 201620621433U CN 205834140 U CN205834140 U CN 205834140U
- Authority
- CN
- China
- Prior art keywords
- dummy bar
- bar head
- continuous casting
- groove
- circular groove
- 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 - Fee Related
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Abstract
This utility model belongs to the improvement of steel plant continuous casting dummy bar head construction, a kind of dummy bar head at the sheet billet continuous casting insertable mouth of a river, the upper end being included in dummy bar head arranges dovetail groove, the groove bottom that upright dummy bar head dovetail groove is upright arranges circular groove, circular groove on dummy bar head dovetail groove bottom surface matches with the face of cylinder of submersed nozzle outer wall lower end, the width of circular groove is 150mm, and the degree of depth of circular groove is 200mm.This utility model is rational in infrastructure; submersed nozzle bottom can be enable to enter crystalliser feet; can improve and open molten steel splash phenomena when watering; do not have a dummy bar head and phenomenon that molten steel adhesion causes dummy bar head and continuous casting billet to separate; ensure that conticaster is properly functioning, reduce and shut down the number of times changing dummy bar head, the operating rate of conticaster can be improved; labor intensity can be reduced, it is ensured that the safety of worker.
Description
Technical field
This utility model belongs to the improvement of steel plant continuous casting dummy bar head construction, and particularly a kind of sheet billet continuous casting can be inserted into
The dummy bar head at the formula mouth of a river.
Background technology
Dummy bar of continuous casting machine is made up of dummy bar head, transition piece and shaft.Before cast, dummy bar head and section transitions part enter knot
Brilliant device, forms crystallizer mobilizable " inner bottom ", and after cast starts, the dovetail groove in molten steel solidification, with dummy bar head condenses in one
Rise, withdrawal straightening machine draw dummy bar, strand is pulled out from crystallizer continuously, until dummy bar head is by withdrawal straightening machine rear and casting
Base separates, and enters dummy bar storing device.
Conticaster leaves needs installation submersed nozzle to carry out opening watering when watering, but owing to crystalliser feet has dummy bar head, makes leaching
Enter the formula mouth of a river to cause opening molten steel when watering and expulsion events occurs completely into crystallizer, often occur what dummy bar head was sprayed
The situation of molten steel adhesion, dummy bar head and continuous casting billet cannot separate, and make the failure of de-ingot, to conticaster properly functioning cause bad
Impact.
Steel-making continuous casting process is certain service life owing to bakie working lining has, it is therefore desirable to periodically restarts cast,
Start needs to send into dummy bar crystallizer every time, and during start, dummy ingot head dovetail groove is connected with molten steel, then by dummy bar
By strand traction pull-out crystallizer.
The subject matter that original dummy bar head exists is as follows:
1, the stop watering process submersed nozzle owing to there being dummy bar head is being opened, it is impossible to completely into crystallizer inside, cause
Molten steel splash phenomena occurs, if in the case of dummy bar head occurs that sealing is bad, it may appear that dummy bar head and the situation of molten steel adhesion,
Dummy bar head and continuous casting billet cannot separate, and make de-ingot failure, have undesirable effect conticaster is properly functioning.
2, for occurring that the dummy bar head dovetail groove of adhesion situation cannot be carried out cleaning, the dummy bar head that can only more renew, make to draw
Head of ingot consumption is big, and spare part is costly.
3, changing dummy bar head needs conticaster to shut down, and affects the operating rate of conticaster.
4, changing dummy bar head needs operator to install in secondary cooling zone, and labor intensity is higher, circumstance complication in secondary cooling zone,
Worker operates at this and there is potential safety hazard.
Utility model content
The purpose of this utility model is to provide the dummy bar head at a kind of sheet billet continuous casting insertable mouth of a river, and it is rational in infrastructure,
Submersed nozzle bottom can be enable to enter crystalliser feet, improve and open molten steel splash phenomena when watering, do not have dummy bar head
Cause, with molten steel adhesion, the phenomenon that dummy bar head and continuous casting billet cannot separate, it is ensured that conticaster is properly functioning, reduce and shut down more
Change the number of times of dummy bar head, the operating rate of conticaster can be improved, labor intensity can be reduced, it is ensured that the safety of worker.
The purpose of this utility model is achieved in that the dummy bar head at a kind of sheet billet continuous casting insertable mouth of a river, is included in
The upper end of dummy bar head arranges dovetail groove, arranges circular groove in the groove bottom that upright dummy bar head dovetail groove is upright,
Circular groove on dummy bar head dovetail groove bottom surface matches with the face of cylinder of submersed nozzle outer wall lower end, circular groove
Width is 150mm, and the degree of depth of circular groove is 200mm.
Main improvement content of the present utility model is as follows:
The position installing submersed nozzle at former dummy bar head mills out a circular groove, circular groove and immersion water
The cylindrical wall of mouth matches, and enables submersed nozzle bottom to enter crystalliser feet.
Main improvement effect:
1, can be substantially improved and open molten steel when watering completely into crystallizer inside and fly opening the process submersed nozzle of watering
Spatter phenomenon, do not have a dummy bar head and phenomenon that molten steel adhesion causes dummy bar head and continuous casting billet to separate, it is ensured that continuous casting
Machine is properly functioning.
2, opening and water process dummy bar head and molten steel adhesion situation greatly reduces, the quantity more renewing dummy bar head reduces, and makes dummy ingot
Head consumption reduces, and reduces spare part expense.
3, reduce shutdown and change the number of times of dummy bar head, the operating rate of conticaster can be improved.
4, dummy bar head cleaning, return and pretend industry and can carry out with off-line, improve the working environment of worker, work can be reduced strong
Degree, it is ensured that the safety of worker.
This utility model is rational in infrastructure, enables submersed nozzle bottom to enter crystalliser feet, improves and open steel when watering
Water splash phenomena, does not haves a dummy bar head and phenomenon that molten steel adhesion causes dummy bar head and continuous casting billet to separate, it is ensured that
Conticaster is properly functioning, decreases and shuts down the number of times changing dummy bar head, improves the operating rate of conticaster, reduces work strong
Degree, it is ensured that the safety of worker.
Accompanying drawing explanation
Being further described this utility model below in conjunction with accompanying drawing, Fig. 1 is the signal of this utility model stereochemical structure
Figure.
Detailed description of the invention
The dummy bar head at a kind of sheet billet continuous casting insertable mouth of a river, as it is shown in figure 1, the upper end being included in dummy bar head 1 is arranged
Dovetail groove 2, arranges circular groove 3, dummy bar head dovetail groove bottom surface in the groove bottom that upright dummy bar head dovetail groove 2 is upright
On circular groove 3 match with the face of cylinder of submersed nozzle outer wall lower end, the width of circular groove 3 is 150mm, circle
The degree of depth of arc groove 3 is 200mm.Circular groove 3 is arranged on the centrage of dummy bar head dovetail groove 2 groove bottom.Circular arc
The transverse section of groove 3 is circular arc.
Claims (3)
1. the dummy bar head at the sheet billet continuous casting insertable mouth of a river, the upper end being included in dummy bar head (1) arranges dovetail groove (2),
It is characterized in that: arranging circular groove (3) in the groove bottom that upright dummy bar head dovetail groove (2) is upright, dummy bar head is trapezoidal
Circular groove (3) in groove bottom matches with the face of cylinder of submersed nozzle outer wall lower end, the width of circular groove (3)
For 150mm, the degree of depth of circular groove (3) is 200mm.
The dummy bar head at the sheet billet continuous casting insertable mouth of a river the most according to claim 1, is characterized in that: circular groove (3)
It is arranged on the centrage of dummy bar head dovetail groove (2) groove bottom.
The dummy bar head at the sheet billet continuous casting insertable mouth of a river the most according to claim 1, is characterized in that: circular groove (3)
Transverse section be circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620621433.3U CN205834140U (en) | 2016-06-22 | 2016-06-22 | The dummy bar head at the sheet billet continuous casting insertable mouth of a river |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620621433.3U CN205834140U (en) | 2016-06-22 | 2016-06-22 | The dummy bar head at the sheet billet continuous casting insertable mouth of a river |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205834140U true CN205834140U (en) | 2016-12-28 |
Family
ID=58153928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620621433.3U Expired - Fee Related CN205834140U (en) | 2016-06-22 | 2016-06-22 | The dummy bar head at the sheet billet continuous casting insertable mouth of a river |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205834140U (en) |
-
2016
- 2016-06-22 CN CN201620621433.3U patent/CN205834140U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 Termination date: 20170622 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |