CN205668064U - A kind of reduce molten steel device of nitrogen pick-up during continuous casting - Google Patents
A kind of reduce molten steel device of nitrogen pick-up during continuous casting Download PDFInfo
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- CN205668064U CN205668064U CN201620537914.6U CN201620537914U CN205668064U CN 205668064 U CN205668064 U CN 205668064U CN 201620537914 U CN201620537914 U CN 201620537914U CN 205668064 U CN205668064 U CN 205668064U
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Abstract
A kind of reduce molten steel device of nitrogen pick-up during continuous casting, belong to continuous casting equipment technical field, be used for reducing molten steel nitrogen pick-up during continuous casting.Its technical scheme is: argon winding-up pipeline is arranged on inside tundish close at bag mouth, the inlet end of argon winding-up pipeline is connected with the argon pipeline on continuous casting platform, multiple argon nozzle installed by argon winding-up pipeline, argon nozzle outlet is towards pouring basket liquid level, and the entrance point of argon winding-up pipeline is provided with argon switch valve and argon flow amount regulation valve.Argon nozzle of the present utility model is jetted argon at Metal in Tundish liquid level; one layer of argon shield can be formed at Metal in Tundish ullage; isolation air contacts with the liquid steel level in tundish, the nitrogen increased amount of molten steel in tundish in effective control casting process.Using after this utility model, during continuous casting, the average nitrogen increased amount of molten steel is reduced to 5ppm from 12ppm, significantly reduces the nitrogen increased amount of molten steel during continuous casting.
Description
Technical field
This utility model relates to a kind of reducing molten steel device of nitrogen pick-up during continuous casting, belongs to continuous casting equipment
Technical field.
Background technology
For most of steel grades, nitrogen is harmful element, nitrogen plasticity, impact flexibility, magnetic and electric conductivity etc. to steel
Performance all has an impact, and nitrogen also can cause the ageing of steel simultaneously, and can cause the cold short of steel as phosphorus, nitrogen also can with in steel
The element such as titanium, aluminum forms nitride inclusion, affects the quality of steel.Therefore IF steel, electrical sheet, high-grade pipe line steel etc. are desirable that steel
In nitrogen content the lowest more good.Along with the development of iron and steel enterprise, people are more and more higher to the requirement of quality, and nitrogen in steel content is also got over
More receiving publicity, the control of nitrogen in steel content also becomes the limiting element in R&D process, how to be controlled by nitrogen in steel content
In the striving direction that lower scope has become in casting process.
Utility model content
Technical problem to be solved in the utility model is to provide and a kind of reduces molten steel device of nitrogen pick-up in casting process,
This device can make during continuous casting Metal in Tundish ullage formed one layer of argon shield, isolation air with
Metal in Tundish liquid level contacts, it is to avoid in casting process, liquid steel level passes through pouring basket liquid level nitrogen pick-up.
The technical scheme solving above-mentioned technical problem is:
A kind of reducing molten steel device of nitrogen pick-up during continuous casting, it includes that argon is jetted pipeline, argon nozzle, argon
Exhaust switch valve, argon winding-up pipeline is arranged on close at bag mouth inside tundish, and the inlet end of argon winding-up pipeline is put down with continuous casting
Argon pipeline on platform is connected, and the other end of argon winding-up pipeline uses encapsulation process, installs many on argon winding-up pipeline
Individual argon nozzle, multiple argon nozzle are evenly distributed on argon winding-up pipeline, and argon nozzle exports towards pouring basket liquid level, argon
The entrance point in gas blowout blowpipe road is provided with argon switch valve.
Above-mentioned reduction molten steel device of nitrogen pick-up during continuous casting, described argon winding-up pipeline is arranged on tundish bag
In lining, argon winding-up pipeline is around the inclusion of tundish, a diameter of 20-30mm of argon winding-up pipeline.
Above-mentioned reduction molten steel device of nitrogen pick-up during continuous casting, described argon nozzle is 8-14, argon nozzle
Direction is with the horizontal 0-45 DEG C.
Above-mentioned reduction molten steel device of nitrogen pick-up during continuous casting, the entrance point of described argon winding-up pipeline is also installed
Having argon flow amount to regulate valve, argon switch valve is in series with argon flow amount regulation valve.Argon switch valve controls the break-make of argon, argon
The size of air-flow adjustable valve scalable argon flow amount, argon flow amount controls at 10-50L/min.
The beneficial effects of the utility model are:
This utility model installs argon winding-up pipeline and argon nozzle inside continuous casting production at bag mouth, and argon sprays
Mouth is jetted argon at Metal in Tundish liquid level, can form one layer of argon shield, isolation at Metal in Tundish ullage
Air contacts with the liquid steel level in tundish, effectively controls the nitrogen pick-up of molten steel in tundish in casting process, reduces in molten steel
Nitrogen content.Before this utility model is implemented, during continuous casting, the average nitrogen increased amount of molten steel is 12ppm, uses this utility model
After, it is possible to during controlling continuous casting, molten steel nitrogen increased amount is at 3-8ppm, and average nitrogen increased amount is 5ppm, significantly reduces continuous casting
During the nitrogen increased amount of molten steel.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, labelling is as follows: tundish 1, tundish cylinder-packing 2, argon winding-up pipeline 3, argon nozzle 4, argon switch valve 5,
Argon flow amount regulation valve 6.
Detailed description of the invention
This utility model is made up of argon winding-up pipeline 3, argon nozzle 4, argon switch valve 5, argon flow amount regulation valve 6.
Showing in figure, it is internal at bag mouth that argon winding-up pipeline 3 is arranged on tundish 1, during argon winding-up pipeline 3 is positioned at
Between in bag cylinder-packing 2, argon winding-up pipeline 3 is around the inclusion of tundish 1.On the inlet end of argon winding-up pipeline 3 and continuous casting platform
Argon pipeline be connected, argon winding-up pipeline 3 the other end use encapsulation process.A diameter of 20-of argon winding-up pipeline
30mm。
Showing in figure, installing multiple argon nozzle 4 on argon winding-up pipeline 3, multiple argon nozzle 4 are evenly distributed on argon
On gas blowout blowpipe road 3, argon nozzle 4 is 8-14.Argon nozzle 4 exports towards tundish 1 liquid level, argon nozzle direction and water
Plane becomes 0-45 DEG C.
Showing in figure, the entrance point of argon winding-up pipeline 3 is provided with argon switch valve 5 and argon flow amount regulation valve 6, argon
Switch valve 5 is in series with argon flow amount regulation valve 6.Argon switch valve 5 can control the break-make of argon, argon flow amount regulation valve 6
The size of scalable argon flow amount, argon flow amount controls at 10-50L/min.
Work process of the present utility model is as follows:
Continuous casting the first stove is opened before watering, and tundish 1 carries out emptying operation, after emptying operation, opens the argon of argon winding-up pipeline 3
Exhaust switch valve 5, is utilized argon regulation valve 6 to control argon flow amount, is jetted argon by argon nozzle 4, in centre in tundish 1
Bag mouth is formed about one layer of argon shield.After continuous casting is opened and watered, argon nozzle 4 continues winding-up argon in tundish 1, it is ensured that
All the time there is argon shield near tundish mouth, stop air to contact with liquid steel level in tundish, in preventing molten steel from passing through
Between bag liquid steel level contact with nitrogen and cause nitrogen pick-up, thus reduce nitrogen content in molten steel.
Claims (4)
1. one kind is reduced molten steel device of nitrogen pick-up during continuous casting, it is characterised in that: it includes argon winding-up pipeline
(3), argon nozzle (4), argon switch valve (5), it is internal at bag mouth that argon winding-up pipeline (3) is arranged on tundish (1), argon
The inlet end in gas blowout blowpipe road (3) is connected with the argon pipeline on continuous casting platform, and the other end of argon winding-up pipeline (3) uses
Encapsulation process, at argon winding-up pipeline (3) the multiple argon nozzle of upper installation (4), multiple argon nozzle (4) are evenly distributed on argon
In winding-up pipeline (3), argon nozzle (4) outlet is provided with argon towards pouring basket liquid level, the entrance point of argon winding-up pipeline (3)
Switch valve (5).
Reduction molten steel the most according to claim 1 device of nitrogen pick-up during continuous casting, it is characterised in that: described argon
Gas blowout blowpipe road (3) is arranged in tundish cylinder-packing (2), and argon winding-up pipeline (3) sprays around the inclusion of tundish (1), argon
A diameter of 20-30mm in blowpipe road (3).
Reduction molten steel the most according to claim 2 device of nitrogen pick-up during continuous casting, it is characterised in that: described argon
Gas jets (4) is 8-14, and argon nozzle (4) direction is with the horizontal 0-45 DEG C.
Reduction molten steel the most according to claim 3 device of nitrogen pick-up during continuous casting, it is characterised in that: described argon
The entrance point in gas blowout blowpipe road (3) is also equipped with argon flow amount regulation valve (6), and argon switch valve (5) regulates valve with argon flow amount
(6) it is in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620537914.6U CN205668064U (en) | 2016-06-06 | 2016-06-06 | A kind of reduce molten steel device of nitrogen pick-up during continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620537914.6U CN205668064U (en) | 2016-06-06 | 2016-06-06 | A kind of reduce molten steel device of nitrogen pick-up during continuous casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205668064U true CN205668064U (en) | 2016-11-02 |
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ID=57194479
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620537914.6U Active CN205668064U (en) | 2016-06-06 | 2016-06-06 | A kind of reduce molten steel device of nitrogen pick-up during continuous casting |
Country Status (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496238A (en) * | 2020-05-21 | 2020-08-07 | 宝武集团马钢轨交材料科技有限公司 | Continuous casting tundish micro-positive pressure argon sealing casting device and control system and method |
| CN111992680A (en) * | 2020-08-28 | 2020-11-27 | 武汉钢铁有限公司 | Device for protecting pouring by blowing argon in tundish and control method |
| CN114905014A (en) * | 2022-05-30 | 2022-08-16 | 达力普石油专用管有限公司 | Method for reducing nitrogen increase of molten steel in continuous casting process |
-
2016
- 2016-06-06 CN CN201620537914.6U patent/CN205668064U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496238A (en) * | 2020-05-21 | 2020-08-07 | 宝武集团马钢轨交材料科技有限公司 | Continuous casting tundish micro-positive pressure argon sealing casting device and control system and method |
| CN111992680A (en) * | 2020-08-28 | 2020-11-27 | 武汉钢铁有限公司 | Device for protecting pouring by blowing argon in tundish and control method |
| CN111992680B (en) * | 2020-08-28 | 2022-03-01 | 武汉钢铁有限公司 | Device for protecting pouring by blowing argon in tundish and control method |
| CN114905014A (en) * | 2022-05-30 | 2022-08-16 | 达力普石油专用管有限公司 | Method for reducing nitrogen increase of molten steel in continuous casting process |
| CN114905014B (en) * | 2022-05-30 | 2024-02-20 | 达力普石油专用管有限公司 | Method for reducing nitrogen increment of molten steel in continuous casting process |
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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 Chengde city of Hebei province shuangluanou Luanhe Town Financial Plaza A block 520 Patentee after: River steel Limited by Share Ltd Chengde branch Address before: 067000 Chengde city of Hebei province shuangluanou Luanhe Town Financial Plaza A block 520 Patentee before: Chengde Branch Co., Ltd. of Hebei Iron & Steel Group |
|
| CP03 | Change of name, title or address | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 067102 A block 520, Luanhe town finance square, Shuangluan District, Chengde, Hebei Patentee after: River steel Limited by Share Ltd Chengde branch Address before: 067102 A block 520, Luanhe town finance square, Shuangluan District, Chengde, Hebei Patentee before: Chengde Branch Co., Ltd. of Hebei Iron & Steel Group |
|
| CP01 | Change in the name or title of a patent holder |