CN106825462A - One kind cast steel ingot protection device and application method - Google Patents
One kind cast steel ingot protection device and application method Download PDFInfo
- Publication number
- CN106825462A CN106825462A CN201710028117.4A CN201710028117A CN106825462A CN 106825462 A CN106825462 A CN 106825462A CN 201710028117 A CN201710028117 A CN 201710028117A CN 106825462 A CN106825462 A CN 106825462A
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- CN
- China
- Prior art keywords
- air blowing
- guard box
- ring
- blowing ring
- steel ingot
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/12—Appurtenances, e.g. for sintering, for preventing splashing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/003—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using inert gases
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Continuous Casting (AREA)
Abstract
The present invention relates to one kind cast steel ingot protection device, the casting process of steel ingot is cast for metallurgy industry.It includes air blowing ring, guard box, guard box liner and sealing ring, and air blowing ring is fixed on edge on feed trumpet, and guard box is fixed on edge on air blowing ring, is sealed using sealing ring between air blowing ring and feed trumpet, guard box and air blowing ring.Air blowing ring inner chamber is circle or oval ring, and its outside is connected with argon gas ingress pipe, and inner side is uniformly distributed cylindric venthole, and argon gas can be made to be uniformly entered in the space that guard box is surrounded with feed trumpet by air blowing ring.Guard box middle and lower part is in circular cone tubular, and top is in straight-tube shape, and argon gas in chamber can be made to spray guard box upper port upwards at a high speed, so as to effectively prevent air from entering feed trumpet, it is to avoid the secondary oxidation of molten steel, improves ingot quality.
Description
Technical field
The present invention relates to metallurgical technology field, more particularly to a kind of cast steel ingot argon protective device and application method.
Background technology
In the casting process of steel ingot production, the high speed molten steel ambient air pressure from collector nozzle of ladle outflow is smaller, near it
Air feed trumpet will be entered by volume inspiration, and then be involved in molten steel inside and as stream stock enters ingot mould, cause molten steel to be sent out
The serious secondary oxidation of life.
At present, the primary structure of the molding casting device employed in steel ingot production is the collector nozzle week in ladle base
Installation argon gas ring blowing apparatus are enclosed, argon gas forms air curtain protective layer around steel stream in casting process, but thus formed
Argon gas curtain is easily influenceed by natural wind, and protecting effect is very unstable.
The content of the invention
The technical problems to be solved by the invention are, for the secondary oxidation problem that cast steel ingot process is present at present, to carry
Go out a kind of molding casting device, make molten steel that secondary oxidation will not occur in casting process because of air-breathing, improve ingot quality.
One kind cast steel ingot protection device, it is characterized in that, including air blowing ring, guard box, guard box liner and sealing ring,
Described air blowing ring is fixed on edge on feed trumpet, and guard box is fixed on edge on air blowing ring, and is sealed using sealing ring.
Guard box middle and lower part is in circular cone tubular, and top is in straight-tube shape；Air blowing ring inner chamber for circle or oval ring, its outside with
Argon gas ingress pipe is connected, and inner side is evenly distributed with 20-40 cylindric venthole.
The guard box middle and lower part is circular cone tubular, and its diameter coordinates with air blowing ring；Top is straight-tube shape, and its internal diameter is steel
2-4 times of bag collector nozzle internal diameter, is highly 70-100mm.
During ingot steel casting, argon gas enters air blowing ring by argon gas ingress pipe, then through the venthole outflow of air blowing ring,
Two stocks are then divided into not flow up and down.In the presence of guard box circular cone tubular inner chamber, the argon gas stream for flowing up
Speed is increasing, is finally flowed out straight up in the presence of the straight-tube shape inner chamber of guard box top, so as to effectively prevent air
Flow into feed trumpet.
Compared with prior art, the present invention has the advantages that：
1) present invention cast steel ingot protection device does not depend on Ladle Bottom seat, can in advance be installed in feed trumpet
On, make the compacter of ingot casting production procedure, improve production efficiency, while temperature drop caused by pouring practice can also be reduced,
Energy saving.
2) inner chamber of the present invention is the air blowing ring of circle or oval ring, it is ensured that argon gas can be evenly distributed in note
Around stream molten steel, the stability of molding casting is improved.
3) bottom of the present invention is in the guard box of straight-tube shape in circular cone cylindrical upper part, it is possible to achieve argon gas in guard box
Acceleration is flowed up, and makes the argon gas stream for having high speed upward at guard box upper opening, can prevent air quilt with significantly more efficient
Volume inspiration enters feed trumpet, it is to avoid the secondary oxidation of molten steel, improves ingot quality.
Brief description of the drawings：
Fig. 1 is schematic structural view of the invention.
Fig. 2 is the top view of air blowing ring as shown in Figure 1.
In figure：1- argon gas ingress pipes；2- air blowing rings；3 sealing rings one, 3-1 sealing rings two；4- guard boxs；In 5- guard boxs
Lining；6- feed trumpets；7- gate bricks；8- ventholes.
Specific embodiment
Embodiment
One kind cast steel ingot protection device, as shown in Figure 1 and Figure 2, including air blowing ring 2, guard box 4, guard box liner 5
With sealing ring 1, the 3-1 of sealing ring two.Air blowing ring 2 is fixed on feed trumpet 6, and guard box 4 and guard box liner 5 are fixed on air blowing
On ring 2, sealing ring 1 and sealing ring two are used between air blowing ring 2 and feed trumpet 6 respectively and guard box 4 and air blowing ring 2 between
3-1 is sealed.
Guard box 4 is made up of ferrous material, can Reusability, guard box liner 5 is made of light thermal-shield refractory material.
The middle and lower part of guard box 4 is circular cone tubular structure, and top is 70-100mm straight-tube shape structures long, its purpose is to be formed vertically
Upward argon gas stream.
The intracavity section of air blowing ring 2 is circular or oval, and the argon pressure of the inner chamber of air blowing ring 2 can so be distributed
It is even.N number of venthole 8 is evenly distributed with the inner ring wall of air blowing ring 2, the span of N is 20-40.
The application method of the cast steel ingot protection device is comprised the following steps：
1) after pendulum mould, along fixed seal ring 1 on feed trumpet 6, air blowing ring 2 is fixed on sealing ring 1, Ran Hou
Along the 3-1 of fixed seal ring two on air blowing ring 2, finally guard box 4 and guard box liner 5 are assembled and the 3-1 of sealing ring two is fixed on
On；
2) open and pour first five minute, argon gas gas blow pipe is connected on argon gas ingress pipe 1, using the pressure of 0.12-0.15MPa
Argon, drives away the air in feed trumpet 6 and ingot mould；
3) in ingot body casting process, using the pressure Argon of 0.15-3MPa, argon gas is blown by the entrance of argon gas ingress pipe 1
The inner chamber of compression ring 2, through in the space that venthole 8 is surrounded into guard box 4 and feed trumpet 6, rear portion argon gas flowed into steel
Enter feed trumpet inner chamber bottom, another part argon gas accelerates to upper flow, and in the presence of the top straight-tube shape inner chamber of guard box 4
Flow out straight up, cause molten steel to aoxidize so as to effectively prevent air from being inhaled into feed trumpet；
4) during riser gating, Argon pressure to 0.15-0.2MPa is reduced, cast stops Argon after terminating, and takes
The lower molding casting device.
Through FLUENT business software numerical simulation calculations, present invention cast steel ingot protection device can make in casting process
Feed trumpet at molten steel face air content be reduced to 10-6The order of magnitude, can effectively avoid molten steel that secondary oxidation occurs, and improve
Ingot quality.
Claims (4)
1. it is a kind of to pour into a mould steel ingot protection device, it is characterized in that, including air blowing ring, guard box, guard box liner and sealing ring, institute
The air blowing ring stated is fixed on edge on feed trumpet, and guard box is fixed on edge on air blowing ring, and is sealed using sealing ring.
2. one kind according to claim 1 pours into a mould steel ingot protection device, it is characterized in that：Guard box middle and lower part is in taper cone barrel
Shape, top is in straight-tube shape.
3. one kind according to claim 1 pours into a mould steel ingot protection device, it is characterized in that：Air blowing ring inner chamber is circle or oval
Annular, its outside is connected with argon gas ingress pipe, and inner side is uniformly distributed cylindric venthole.
4. one kind according to claim 1 and 2 pours into a mould steel ingot protection device, it is characterized in that：Guard box middle and lower part is circle
Cone cylinder shape, its diameter coordinates with air blowing ring；Top is straight-tube shape, and its internal diameter is 2-4 times of collector nozzle of ladle internal diameter, is highly
70-100mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710028117.4A CN106825462B (en) | 2017-01-13 | 2017-01-13 | A kind of casting steel ingot protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710028117.4A CN106825462B (en) | 2017-01-13 | 2017-01-13 | A kind of casting steel ingot protective device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106825462A true CN106825462A (en) | 2017-06-13 |
| CN106825462B CN106825462B (en) | 2018-11-27 |
Family
ID=59124727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710028117.4A Expired - Fee Related CN106825462B (en) | 2017-01-13 | 2017-01-13 | A kind of casting steel ingot protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106825462B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482825A (en) * | 2018-12-29 | 2019-03-19 | 东北大学 | A kind of lower casting device |
| CN111610305A (en) * | 2020-04-28 | 2020-09-01 | 北京科技大学 | Method for quantitatively evaluating crushing resistance and wear resistance of iron alloy for steelmaking by using rotary drum |
| CN115161433A (en) * | 2022-07-22 | 2022-10-11 | 北京科技大学 | Steel ladle wire feeding device protected by double-layer air curtain |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61259857A (en) * | 1985-05-14 | 1986-11-18 | Daido Steel Co Ltd | Non-polluting ingot forming method |
| CN200955059Y (en) * | 2006-07-28 | 2007-10-03 | 江阴兴澄特种钢铁有限公司 | Continuous casting steel-ladle pouring-area argon-gas sealing protection tower box |
| CN201470880U (en) * | 2009-08-28 | 2010-05-19 | 宝山钢铁股份有限公司 | Argon shielding device for casting of die casting |
| CN202239524U (en) * | 2011-09-23 | 2012-05-30 | 鞍钢重型机械有限责任公司 | Argon protection device for casting steel ingots |
| CN203599517U (en) * | 2013-12-13 | 2014-05-21 | 攀钢集团江油长城特殊钢有限公司 | Molten metal die casting device |
| CN204075107U (en) * | 2014-10-08 | 2015-01-07 | 舞阳钢铁有限责任公司 | A kind of ingot steel casting argon protective device |
| CN205763829U (en) * | 2016-05-30 | 2016-12-07 | 中原特钢股份有限公司 | A kind of device of continuous casting tundish submerged nozzle argon for protecting pouring |
-
2017
- 2017-01-13 CN CN201710028117.4A patent/CN106825462B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61259857A (en) * | 1985-05-14 | 1986-11-18 | Daido Steel Co Ltd | Non-polluting ingot forming method |
| CN200955059Y (en) * | 2006-07-28 | 2007-10-03 | 江阴兴澄特种钢铁有限公司 | Continuous casting steel-ladle pouring-area argon-gas sealing protection tower box |
| CN201470880U (en) * | 2009-08-28 | 2010-05-19 | 宝山钢铁股份有限公司 | Argon shielding device for casting of die casting |
| CN202239524U (en) * | 2011-09-23 | 2012-05-30 | 鞍钢重型机械有限责任公司 | Argon protection device for casting steel ingots |
| CN203599517U (en) * | 2013-12-13 | 2014-05-21 | 攀钢集团江油长城特殊钢有限公司 | Molten metal die casting device |
| CN204075107U (en) * | 2014-10-08 | 2015-01-07 | 舞阳钢铁有限责任公司 | A kind of ingot steel casting argon protective device |
| CN205763829U (en) * | 2016-05-30 | 2016-12-07 | 中原特钢股份有限公司 | A kind of device of continuous casting tundish submerged nozzle argon for protecting pouring |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482825A (en) * | 2018-12-29 | 2019-03-19 | 东北大学 | A kind of lower casting device |
| CN111610305A (en) * | 2020-04-28 | 2020-09-01 | 北京科技大学 | Method for quantitatively evaluating crushing resistance and wear resistance of iron alloy for steelmaking by using rotary drum |
| CN111610305B (en) * | 2020-04-28 | 2021-11-09 | 北京科技大学 | Method for quantitatively evaluating crushing resistance and wear resistance of iron alloy for steelmaking by using rotary drum |
| CN115161433A (en) * | 2022-07-22 | 2022-10-11 | 北京科技大学 | Steel ladle wire feeding device protected by double-layer air curtain |
| CN115161433B (en) * | 2022-07-22 | 2023-12-15 | 北京科技大学 | Ladle wire feeding device with double-layer air curtain protection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106825462B (en) | 2018-11-27 |
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Granted publication date: 20181127 Termination date: 20220113 |