CN202639305U - Air-cooled tundish cover capable of blowing tundish - Google Patents
Air-cooled tundish cover capable of blowing tundish Download PDFInfo
- Publication number
- CN202639305U CN202639305U CN2012202598961U CN201220259896U CN202639305U CN 202639305 U CN202639305 U CN 202639305U CN 2012202598961 U CN2012202598961 U CN 2012202598961U CN 201220259896 U CN201220259896 U CN 201220259896U CN 202639305 U CN202639305 U CN 202639305U
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- housing
- tundish
- air
- air inlet
- exhaust outlet
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Abstract
The utility model relates to an air-cooled tundish cover capable of blowing a tundish. A hollow housing is internally provided with a plurality of wind partitions; the partitions are arranged in a vertically staggered and alternated manner; an air inlet is formed on one side of an end wall of the housing; an exhaust outlet is formed on the other side of the end wall of the housing; the air inlet is communicated with the exhaust outlet by a channel formed by the partitions; a plurality of connecting pipes vertically penetrating through the housing are arranged on the housing; the upper ends of the connecting pipes outside the housing are communicated by a pipeline and connected with an argon connector valve and a nitrogen connector valve; nozzles are mounted at the lower ends of the connecting pipes outside the housing respectively; and two stopper inserting holes consisting of inner frames and vertically penetrating through the housing are arranged on the housing. With the adoption of the technology, the service life of the tundish cover can be prolonged, molten steel pollution is avoided, the quality of a head billet is improved, and the cost of spare parts of the tundish can be lowered.
Description
Technical field
The air-cooled tundish cover of the purged tundish that the utility model relates to is the tundish parts of steel-making in the conticaster production equipment.
Background technology
Tundish is the visual plant that conticaster is produced.Platform above conticaster crystallizer is equipped with railcar, and we are referred to as the tundish track transport vehicle.Tundish is the open containers between steel ladle and crystallizer.Be used for accepting the molten steel from the steel ladle bag.Tundish is placed on the tundish track transport vehicle, is convenient to the replacing of tundish.The technological process of conticaster production is like this: the steel ladle that fills with molten steel by handling to bale panoramic tables, the bale panoramic tables last time can be placed two steel ladle that fill with molten steel, alternately to tundish supply molten steel, behind the steel ladle turned letter, bale panoramic tables rotates 180 degree, and the steel ladle that is filled with molten steel by another is supplied molten steel to tundish.Empty steel ladle is then hung away, is substituted by other one steel ladle that fills with molten steel.Molten steel enters tundish through the slidingtype mouth of a river of steel ladle and the long nozzle of tundish, and the Stopper opening and closing mechanism via tundish flows into crystallizer again.Molten steel forms the strand shell in the crystallizer condensation, remains at core under the state of liquid state, and the secondary cooling via bending section, horizontal segment under the traction of dummy bar is condensed into solid-state steel billet gradually.And then the cast steel base is cut into the steel billet of certain-length specification with flame cutting machine.Produce continuously so again and again, molten steel is watered into the cast steel base continuously on conticaster, until this waters time end.After conticaster was changed tundish, the first stove steel billet of cast was called a base.
Existing tundish cover is the metal cover board that covers on tundish.Tundish cover adopts welded-steel plate construction, in the inboard of cover plate, is welded with the metal anchoring claw, is used for fixing refractory lining.The domestic steel mill that has welds water tank in the cover plate of tundish top, pass into the water cooling tundish.The shortcoming of prior art is: ⑴ is under the thermal-radiating effect of molten steel, and weld cracking can occur pouring basket lid, steel plate framework distortion, cause the refractory lining be full of cracks,
Come offThe refractory material that splits away off is easy to stop up tundish slide gate nozzle under the effect of entrainmenting of molten steel, make conticaster can't continue cast, causes the disconnected accident of watering.Therefore, the life-span of existing tundish cover use is lower.⑵ tundish will be heated to uniform temperature with liner with roaster before the use of reaching the standard grade, prevent that molten steel from touching the moisture of tundish and producing blast.Have the material that much affects steel quality in the tundish behind overbaking, because the tundish temperature after the baking is very high, can't adopt manually effectively to purge, these materials are blended into the quality of a meeting impact base in the molten steel.⑶ the subject matter that adopt the water-cooled tundish to bring is that in a single day tundish cover leaks and will bring harm to the production of conticaster.
Summary of the invention
The purpose of this utility model provides a kind of air-cooled tundish cover that purges tundish, and present technique can prevent pouring basket lid distortion, improves clad service life, can be by the purging to tundish, prevent that molten steel from polluting, improve the quality of a base steel billet, reduce tundish spare part expense.
The technical solution of the utility model is: the air-cooled tundish cover that can purge tundish, has housing, it is characterized in that, be provided with the some dividing plates that keep out the wind in the housing of hollow, each dividing plate misplaces up and down alternately, a side is provided with air inlet on the housing end wall, opposite side is provided with exhaust outlet, air inlet is connected by the passage that each dividing plate consists of with exhaust outlet, housing is provided with a plurality of perpendicular connecting legs of wearing housing, each connecting leg upper end is communicated with by pipeline housing outside and is connected with the nitrogen interface valve with argon gas interface valve, and nozzle is equipped with respectively in each connecting leg lower end outside housing, and housing is provided with two and is made of and erects the stopper jack of wearing housing inside casing.
The tundish cover that adopts present technique to make, realized the purging to tundish, prevent the pouring basket lid distortion, prevent that tundish lining from chapping in early days, coming off, stop up slide gate nozzle, cause that conticaster is disconnected to be watered, thereby improved clad service life, can prevent that molten steel from polluting, and improves the quality of a base steel billet.Reduce tundish spare part expense, economic benefits.
Description of drawings
Fig. 1 is the structural representation that can purge the air-cooled tundish cover of tundish.
Fig. 2 is the A-A profile of Fig. 1.
Fig. 3 is the B-B profile of Fig. 1.
1 air inlet, 2 housings, 3 pipelines, 4 argon gas valve interfaces, 5 inside casings, 6 stopper jacks, 7 exhaust outlets, 8 nitrogen valve door interfaces, 9 connecting legs, 10 nozzles, 11 dividing plates among the figure.
The specific embodiment
The air-cooled tundish cover that can purge tundish has housing 2, housing 2 is hollow, adopt the whole steel sheet Welding Structure, be provided with the some dividing plates that keep out the wind 11 in the housing, each dividing plate misplaces up and down alternately, structure S shape passage, a side is provided with air inlet 1 on the housing end wall, opposite side is provided with exhaust outlet 7, and air inlet is connected by the passage that each dividing plate consists of with exhaust outlet, and air-flow enters the S-shaped then discharge of flowing in the housing, can fully contact heat-delivery surface, improve radiating effect, the utility model uses nitrogen as cooling medium, and air inlet adopts metal hose to be connected with the high pressure nitrogen pipeline.Exhaust outlet links to each other with the nitrogen storage gas tank by metal hose, and high pressure nitrogen enters from air inlet 1, discharges from exhaust outlet 7.Realization is to the cooling of tundish cover.Be furnished with four perpendicular connecting legs 9 of wearing housing around the housing 2, each connecting leg 9 upper end is communicated with by pipeline 3 outside housing and is connected with the nitrogen valve door interface with argon gas valve interface 4 and is connected, stainless steel nozzle 10 is equipped with respectively in each connecting leg 9 lower end outside housing, when tundish is purged, high pressure nitrogen is from 8 accesses of nitrogen valve door interface, get rid of through connecting leg 9, nozzle 10, tundish is purged, waste gas directly is discharged in the atmosphere.Then with the nitrogen valve closing, open the argon gas valve, argon gas enters from argon gas valve interface 4, flows out through connecting leg 9 nozzles 10, and tundish is once purged again.Housing is provided with two and is made of inside casing 5 and the perpendicular stopper jack 6 of wearing housing.The tundish cover that adopts this method to make, long service life, safety, reliable can be protected effectively to molten steel, prevents that molten steel from polluting, and improves the quality of a base steel billet.Reduce tundish spare part expense, economic benefits.
Claims (1)
1. can purge the air-cooled tundish cover of tundish, has housing, it is characterized in that, be provided with the some dividing plates that keep out the wind in the housing of hollow, each dividing plate misplaces up and down alternately, a side is provided with air inlet on the housing end wall, opposite side is provided with exhaust outlet, air inlet is connected by the passage that each dividing plate consists of with exhaust outlet, housing is provided with a plurality of perpendicular connecting legs of wearing housing, each connecting leg upper end is communicated with by pipeline housing outside and is connected with the nitrogen interface valve with argon gas interface valve, and nozzle is equipped with respectively in each connecting leg lower end outside housing, and housing is provided with two and is made of and erects the stopper jack of wearing housing inside casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202598961U CN202639305U (en) | 2012-06-04 | 2012-06-04 | Air-cooled tundish cover capable of blowing tundish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202598961U CN202639305U (en) | 2012-06-04 | 2012-06-04 | Air-cooled tundish cover capable of blowing tundish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202639305U true CN202639305U (en) | 2013-01-02 |
Family
ID=47408483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202598961U Expired - Fee Related CN202639305U (en) | 2012-06-04 | 2012-06-04 | Air-cooled tundish cover capable of blowing tundish |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202639305U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111854293A (en) * | 2020-06-16 | 2020-10-30 | 江苏兴达钢帘线股份有限公司 | Online cooling system and method for tire bead steel wire |
-
2012
- 2012-06-04 CN CN2012202598961U patent/CN202639305U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111854293A (en) * | 2020-06-16 | 2020-10-30 | 江苏兴达钢帘线股份有限公司 | Online cooling system and method for tire bead steel wire |
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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: 20130102 Termination date: 20150604 |
|
| EXPY | Termination of patent right or utility model |