CN201211557Y - Vacuum casting protective water gap - Google Patents
Vacuum casting protective water gap Download PDFInfo
- Publication number
- CN201211557Y CN201211557Y CNU200820077861XU CN200820077861U CN201211557Y CN 201211557 Y CN201211557 Y CN 201211557Y CN U200820077861X U CNU200820077861X U CN U200820077861XU CN 200820077861 U CN200820077861 U CN 200820077861U CN 201211557 Y CN201211557 Y CN 201211557Y
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- China
- Prior art keywords
- protective sleeve
- molten steel
- river
- vacuum
- vacuum casting
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- Expired - Fee Related
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Abstract
The utility model discloses a vacuum casting protective nozzle. The main body of the protective nozzle is a protective sleeve (1), the upper end of the protective sleeve (1) is provided with a sealing device (2) and a ring-shaped overlapping buffering device which are connected with a molten steel intermediate container, and the sidewall of the protective sleeve (1) is provided with a vacuum pipe (3) and an observation opening (11) connected with a vacuum system, wherein the observation opening (11) is embedded with a transparent material, and the inside of the protective sleeve (1) is provided with a distributor (4). The lower part of the protective sleeve (1) is provided with a molten steel kinetic energy absorbing device (5) which is a metal vessel with an opening at the upper end and is communicated with the protective sleeve (1), and the periphery of the middle lower part of the molten steel kinetic energy absorbing device (5) is provided with a molten steel outlet (51). During steel smelting or casting, by use of the vacuum casting protective nozzle, the molten steel flow can be observed at any time, the contact of the molten steel and the air to cause oxidation is avoided, and the poisonous gas and non-metal inclusion in the molten steel can be treated at the same time.
Description
Technical field:
The utility model relates to a kind of casting protection mouth of a river, especially a kind of vacuum casting protection mouth of a river.
Background technology:
In smelting iron and steel or steel casting process, molten steel is through intermediate receptacle, or after entering into tundish by big bag, enters strand equipment or steel casting model by the protection mouth of a river.For preventing that molten steel from air contact oxidation taking place at casting cycle, all adopt the protection of casting of the protection mouth of a river at present.The protection mouth of a river is made by refractory material.There is following problem in use.(1) because refractory material does not have light transmission, people in use need to observe molten steel is mobile, thus in use all above the protection mouth of a river, leave certain distance, so that the molten steel casting cycle is observed.So can not guarantee the different air contacts of molten steel fully.(2) in casting cycle, because molten steel falls from certain altitude, produce kinetic energy, field trash in the molten steel is taken in the very dark molten steel, these field trashes have little time to float to the molten steel surface, are entrained in the strand, make a big impact to slab quality.(3) the protection mouth of a river has part to invade in the molten steel, and this part is because the erosion of molten steel, and shelling of refractory and the bottom fracture takes place easily in molten steel, drop to the accident in the molten steel.(4) in daily use because the molten steel temperature height, produce very high heat radiation, in order to make operating personnel with regard near operation, must lower the temperature, in present iron and steel enterprise, often use the axial flow blower forced cooling, working site noise and air blast make operating personnel's physical and mental health be subjected to serious harm.(5) protection mouth of a river material major part is a quartz material, because the protection mouth of a river life-span is short, has both increased production cost, again the very big mineral resources of waste.(6) the protection mouth of a river can only can not be eliminated the same air insulated of molten steel to pernicious gas and non-metallic inclusion that molten steel contains.
Summary of the invention:
The utility model purpose is for overcoming above-mentioned weak point; and provide a kind of can flowing to molten steel at any time to observe; can prevent that again molten steel from air contact oxidation taking place, simultaneously a kind of vacuum casting protection mouth of a river that can handle pernicious gas in the molten steel and non-metallic inclusion again.
The technical scheme that the utility model adopted is: the vacuum casting protection mouth of a river; its main body is a protective sleeve; this protective sleeve is the canister of upper end open; described protective sleeve upper end is provided with sealing device and the folded shape buffer unit of ring-type that is connected with the molten steel intermediate receptacle; on this protective sleeve sidewall, be provided with the vacuum tube and the observation panel that connect vacuum system; stud with transparent material on the described observation panel; establish distributor in the described protective sleeve; establish the molten steel dynamic energy absorber in described protective sleeve bottom; this device is the canister of upper end open; described molten steel dynamic energy absorber upper end is connected with protective sleeve, establishes the molten steel flow export around the described molten steel dynamic energy absorber middle and lower part.
As a kind of improvement of the present utility model: described protective sleeve and molten steel dynamic energy absorber are made as one.
As another kind of improvement the of the present utility model, protective sleeve, absorption kinetic energy apparatus and metal distributor are double container, are respectively equipped with warter connection on its protective sleeve, the absorption kinetic energy apparatus container outer wall.
As another improvement of the present utility model, establish buoyancy body in the described molten steel dynamic energy absorber, this buoyancy body is arbitrary geometry entity.
As another kind of improvement the of the present utility model, described in protective sleeve, the vacuum tube porch establishes skimming device.
As of the present utility model another improve, establish the lubricant adding set on the described protective sleeve sidewall, the device of skimming, be blown into the device of inert gas.
During use; the utility model vacuum casting protection mouth of a river is supported on the conticaster platform by support; protective sleeve is connected with molten steel intermediate receptacle slide gate nozzle by sealing device, and molten steel dynamic energy absorber bottom places in the crystallizer, and vacuum tube is connected with vacuum equipment.After connecting vacuum system and cooling water, open protective sleeve top canister slide gate nozzle, molten steel flows to from the mouth of a river in the protective sleeve on the metal distributor top, and distributor top guiding molten steel splashes, the molten steel that the descends protective sleeve inwall that leads.Under the vacuum state, the molten steel surface area amplifies suddenly in protective sleeve, forms many tiny steel balls, and contained gas is in time got rid of and made the non-metallic inclusion sex change in the molten steel, swims in the molten steel top.The molten steel pearl of splashing drops to following absorption kinetic energy apparatus bottom, upwards returned again, reduced molten steel kinetic energy, further impelled metallic inclusion to float on above the molten steel again, flow in the crystallizer or in the tundish from the side outlet of this device from absorbing the molten steel that returns the kinetic energy apparatus bottom.Without cooling water the time, absorb kinetic energy apparatus outer wrapping in the refractory material.The utility model carries out refining treatment to contained gas and non-metallic inclusion in the molten steel when avoiding the molten steel casting cycle with the air contact oxidation to take place, improved the casting billet quality.The sealing device and the buffer unit of the utility model protective sleeve upper end can make protective sleeve when mold oscillation, guarantee being tightly connected between protective sleeve and the molten steel intermediate receptacle all the time.By the watch window on the protective sleeve, can observe the disposition of molten steel stream at any time.Protective sleeve, absorption kinetic energy apparatus and the metal distributor at the utility model vacuum casting protection mouth of a river are bilayer, are provided with cooling water outlet and inlet on protective sleeve, absorption kinetic energy apparatus container outer wall, so that protective sleeve, absorption kinetic energy apparatus are cooled off.Protective sleeve is made the water-cooled form, not only environmental protection but also safety, and the use that is beneficial to the healthy of operator and saves temperature-dropping fan improves working environment.Protective sleeve, absorb the kinetic energy apparatus cooling after, help the inside cooling of molten steel, improve the conticaster pulling rate, be beneficial to the minimizing cooling pressure, help the formation of initial solidification shell in the crystallizer and solidify.The utility model protective sleeve can not use cooling water as required, when between big bag and tundish, using without cooling water.The utility model also can be established buoyancy body in the molten steel dynamic energy absorber, this buoyancy body is arbitrary geometry entity, and molten steel impacts buoyancy body, slows down the molten steel flow velocity, prevents that molten steel from forming deep-draw, further reduces non-metallic inclusion and enter molten steel.For preventing that the floating field trash of molten steel from entering in the vacuum tube, stop up vacuum tube, the utility model also can be established a skimming device at the vacuum tube inlet.
Description of drawings
Fig. 1 is the utility model vacuum casting protection gate structure schematic diagram.
The specific embodiment
As shown in Figure 1; the utility model vacuum casting protection mouth of a river; its main body is a protective sleeve 1; this protective sleeve 1 is the canister of upper end open; protective sleeve 1 upper end is provided with sealing device 2 and the folded shape buffer unit of ring-type that is connected with molten steel intermediate receptacle 7; sealing device 2 can be a machinery; water; magnetic force; seal form such as electric power; buffer unit can be a stacking spring; it also can be other annular resilient device; the utility model is established observation panel 11 on protective sleeve 1 sidewall; stud with transparent material on the observation panel 11; in protective sleeve 1, establish distributor 4; this distributor 4 is arbitrary solid; as being the under shed container; molten steel flows on protective sleeve 1 interior metal distributor 4 tops from the mouth of a river; distributor 4 tops guiding molten steel splashes; molten steel guiding protective sleeve 1 inwall that descends; distributor 4 is fixedly connected by support bar and protective sleeve 1; protective sleeve 1 sidewall is provided with the vacuum tube 3 that connects vacuum system; the utility model is established the molten steel dynamic energy absorber 5 that communicates with protective sleeve 1 in protective sleeve 1 bottom; this device 5 is the canister of upper end open; establish molten steel flow export 51 around molten steel dynamic energy absorber 5 middle and lower parts; during use; the utility model vacuum casting protection mouth of a river is supported on the conticaster platform by support; protective sleeve 1 is connected with molten steel intermediate receptacle 7 by sealing device 2 and buffer unit; molten steel dynamic energy absorber 5 bottoms place in the crystallizer 6, and vacuum tube 3 is connected with vacuum equipment.For preventing that slag is drawn in the vacuum tube 3,3 import departments establish skimming device 41 at vacuum tube, and skimming device 41 is arbitrary solid.Be easy to process, saving cost, the utility model can be made of one protective sleeve 1 and molten steel dynamic energy absorber 5.Protective sleeve 1 of the present utility model, absorption kinetic energy apparatus 5 and metal distributor 4 are double container, are respectively equipped with warter connection on its protective sleeve 1, absorption kinetic energy apparatus 5 container outer walls.The utility model protective sleeve 1 can not use cooling water as required, without cooling water, at this moment, absorbs kinetic energy apparatus 5 usefulness refractory materials and does interior outer wrapping during as use between big bag and tundish.The utility model also can be established buoyancy body in molten steel dynamic energy absorber 5, this buoyancy body is arbitrary geometry entity, the anti-deep-draw body that floats can be tapered and ball-type or other solid, molten steel directly impacts the anti-deep-draw body that floats, the anti-deep-draw body that floats forms certain resistance to molten steel, prevent that molten steel from forming deep-draw, further reduces non-metallic inclusion and go deep into molten steel.Also establish the lubricant adding set on protective sleeve 1 sidewall, the device of skimming, be blown into the device of inert gas.Lubricant adding set, the device of skimming, the device that is blown into inert gas are the device that generally uses.Can utilize the device that adds lubricant on the protective sleeve 1 in molten steel, to add lubricant by need of work at work, also can lubricate slag, reach the field trash floating thing by the device cleaning of skimming by need of work at work.By being blown into the device of inert gas, in protective sleeve 1, be blown into inert gas, prevent molten steel streamer generation secondary oxidation.
Claims (6)
1; a kind of vacuum casting protection mouth of a river; it is characterized in that: the main body at the vacuum casting protection mouth of a river is protective sleeve (1); this protective sleeve (1) is the canister of upper end open; described protective sleeve (1) upper end is provided with sealing device (2) and the folded shape buffer unit of ring-type that is connected with the molten steel intermediate receptacle; on this protective sleeve (1) sidewall, be provided with the vacuum tube (3) and the observation panel (11) that connect vacuum system; described observation panel studs with transparent material on (1); establish distributor (4) in the described protective sleeve (1); establish molten steel dynamic energy absorber (5) in described protective sleeve (1) bottom; this device (5) is the canister of upper end open; and be connected with protective sleeve (1), establish molten steel flow export (51) around described molten steel dynamic energy absorber (5) middle and lower part.
2, vacuum casting according to claim 1 is protected the mouth of a river, it is characterized in that: described protective sleeve (1) is made as one with molten steel dynamic energy absorber (5).
3, vacuum casting according to claim 1 and 2 is protected the mouth of a river; it is characterized in that: described protective sleeve (1), dynamic energy absorber (5) and metal distributor (4) are double container, are respectively equipped with warter connection on its protective sleeve (1), dynamic energy absorber (5) container outer wall.
4, vacuum casting according to claim 1 and 2 is protected the mouth of a river, and it is characterized in that: establish buoyancy body in the described molten steel dynamic energy absorber (5), this buoyancy body is arbitrary geometry entity.
5, the vacuum casting according to claim 1 and 2 protection mouth of a river is characterized in that: in described protective sleeve (1), vacuum tube 3 porch establish skimming device (41).
6, the vacuum casting according to claim 1 and 2 protection mouth of a river is characterized in that: establish the lubricant adding set on described protective sleeve (1) sidewall, the device of skimming, be blown into the device of inert gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820077861XU CN201211557Y (en) | 2008-07-11 | 2008-07-11 | Vacuum casting protective water gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820077861XU CN201211557Y (en) | 2008-07-11 | 2008-07-11 | Vacuum casting protective water gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201211557Y true CN201211557Y (en) | 2009-03-25 |
Family
ID=40495711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820077861XU Expired - Fee Related CN201211557Y (en) | 2008-07-11 | 2008-07-11 | Vacuum casting protective water gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201211557Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104411427A (en) * | 2012-04-26 | 2015-03-11 | Sms康卡斯特股份公司 | Refractory casting tube for a mould for continuously casting molten metal |
| CN112024866A (en) * | 2020-09-04 | 2020-12-04 | 攀钢集团攀枝花钢铁研究院有限公司 | Full-sealed die casting pouring protection device |
| CN112247135A (en) * | 2020-09-30 | 2021-01-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Die casting pouring protection device with height compensation and visual functions |
-
2008
- 2008-07-11 CN CNU200820077861XU patent/CN201211557Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104411427A (en) * | 2012-04-26 | 2015-03-11 | Sms康卡斯特股份公司 | Refractory casting tube for a mould for continuously casting molten metal |
| CN112024866A (en) * | 2020-09-04 | 2020-12-04 | 攀钢集团攀枝花钢铁研究院有限公司 | Full-sealed die casting pouring protection device |
| CN112247135A (en) * | 2020-09-30 | 2021-01-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Die casting pouring protection device with height compensation and visual functions |
| CN112247135B (en) * | 2020-09-30 | 2021-10-19 | 攀钢集团攀枝花钢铁研究院有限公司 | Die casting pouring protection device with height compensation and visual functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090325 Termination date: 20100711 |