CN204052869U - A kind of device for controlling flow of ladle for sheet blank continuous casting - Google Patents
A kind of device for controlling flow of ladle for sheet blank continuous casting Download PDFInfo
- Publication number
- CN204052869U CN204052869U CN201420437695.5U CN201420437695U CN204052869U CN 204052869 U CN204052869 U CN 204052869U CN 201420437695 U CN201420437695 U CN 201420437695U CN 204052869 U CN204052869 U CN 204052869U
- Authority
- CN
- China
- Prior art keywords
- blocking wall
- slag blocking
- discharge orifice
- tundish
- submersed nozzle
- 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
Links
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
Of the present utility modelly provide a kind of device for controlling flow of ladle for sheet blank continuous casting, comprise tundish, slag blocking wall and submersed nozzle is provided with in tundish, along being provided with lower slag blocking wall one and lower slag blocking wall two successively from upper slag blocking wall to the direction of submersed nozzle, tundish bottom, and gap is arranged at the bottom of upper slag blocking wall and the bottom of tundish, upper slag blocking wall is provided with multiple discharge orifice, and discharge orifice inclination angle is 5
.～10
。, and discharge orifice towards the position in aperture, submersed nozzle one end higher than the position in discharge orifice other end aperture, be provided with funnel shaped annular ring above submersed nozzle, and the less one end of annular ring diameters is towards submersed nozzle; Improve piston flow district volume fraction, reduce stagnant area volume fraction, even liquid steel temperature, be beneficial to the floating of non-metallic inclusion, be beneficial to the response time and raising slab quality that shorten steel stream, reduce production cost.
Description
Technical field
The utility model belongs to continuous casting technology field, especially relates to a kind of device for controlling flow of ladle for sheet blank continuous casting.
Background technology
Sheet blank continuous casting tundish is important metallurgical technology equipment, be not only distribution, ensure the buffer of molten steel direct casting, it still removes non-metallic inclusion, even liquid steel temperature, prevent slag from entering the key equipment of the guarantee slab qualities such as crystallizer, its metallurgical effect directly affects the quality of strand, because sheet billet quality plays conclusive effect to end product quality, therefore, play the metallurgical effect of sheet blank continuous casting tundish to greatest extent, further raising Cleanliness of Molten Steel and thin sheet continuous casting base quality, to meet the demand of variety development, strengthen the competitiveness of light sheet products at home and abroad steel market, the structural design of flow control device in tundish is larger on the flow behavior impact of molten steel, one or more flow control devices in existing sheet blank continuous casting device for controlling flow of ladle many employings turbulator, upper slag blocking wall (weir), lower slag blocking wall (dam), such as the parameters of turbulator, slag blocking wall etc. of the flow control element in continuous casting production plays vital effect to the floating of non-metallic inclusion in tundish and even liquid steel temperature, the subject matter of current existence is that stagnant area volume fraction is bigger than normal, piston region volume fraction is less than normal, the Cleanliness of Molten Steel flowing into crystallizer is not high, is unfavorable for effective control of the floating of non-metallic inclusion in tundish, evenly liquid steel temperature and high-quality steel grade quality.
Summary of the invention
The purpose of this utility model is to provide a kind of device for controlling flow of ladle for sheet blank continuous casting, to solve, stagnant area volume fraction is bigger than normal, piston region volume fraction is less than normal, flow into that the Cleanliness of Molten Steel of crystallizer is not high, in tundish non-metallic inclusion can not fully float, the problem of effective control of the uneven and high-quality steel grade quality of liquid steel temperature.
A kind of device for controlling flow of ladle for sheet blank continuous casting of the utility model, comprise tundish, slag blocking wall and submersed nozzle is provided with in tundish, along being provided with lower slag blocking wall one and lower slag blocking wall two successively from upper slag blocking wall to the direction of submersed nozzle, tundish bottom, and gap is arranged at the bottom of upper slag blocking wall and the bottom of tundish, upper slag blocking wall is provided with multiple discharge orifice, and discharge orifice inclination angle is 5
°~ 10
°, and discharge orifice towards the position in aperture, submersed nozzle one end higher than the position in discharge orifice other end aperture, be provided with funnel shaped annular ring above submersed nozzle, and the less one end of annular ring diameters is towards submersed nozzle.
The utility model is arranged with discharge orifice with angle and reduces the gap at the bottom of barricade and molten bath on upper slag blocking wall, not only ensure that the metallurgical effect of molten steel, and add the active degree of molten steel between two lower slag blocking walls and upper slag blocking wall, improve piston flow district volume fraction 15.6%, reduce stagnant area volume fraction 29.8%, even liquid steel temperature, be beneficial to the floating of non-metallic inclusion, be beneficial to the response time and raising slab quality that shorten steel stream.
The utility model installs the annular ring of taper additional above submersed nozzle, effectively prevent bulky grain to be mingled with and enter crystallizer with molten steel, and promote the floating of remaining field trash in molten steel, oxygen content is reduced to 40ppm from the 55ppm before improvement, and reduce 27.3%, the non-metallic inclusion occurrence rate being greater than more than 20um reduces 30%, improve the cleanliness factor of molten steel, thin sheet continuous casting base ratio of defects reduces 25%, improves product quality, reduces production cost.
Accompanying drawing explanation
Fig. 1 is elevational cross-sectional view of the present utility model.
Fig. 2 is top view of the present utility model.
In figure: 1, tundish; 2, large bag long nozzle; 3, upper slag blocking wall; 4, discharge orifice; 5, lower slag blocking wall one; 6, lower slag blocking wall two; 7, annular ring; 8, submersed nozzle.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in more detail.
As depicted in figs. 1 and 2, the utility model is used for the device for controlling flow of ladle of sheet blank continuous casting, comprise tundish 1, slag blocking wall 3 and submersed nozzle 8 is provided with, along being provided with lower slag blocking wall 1 and lower slag blocking wall 26 from upper slag blocking wall 3 successively bottom the direction of submersed nozzle 8, tundish 1 in tundish 1; Have the gap of 90 ~ 110mm between bottom the bottom of upper slag blocking wall 3 and tundish 1, upper slag blocking wall 3 is provided with the discharge orifice 4 of multiple inclination, the inclination angle of discharge orifice 4 is 5
°~ 10
°, discharge orifice 4 towards the position in aperture, submersed nozzle 8 one end higher than the position in discharge orifice 4 other end aperture; Discharge orifice 4 on upper slag blocking wall 3 is in matrix arrangement, and the number of the discharge orifice 4 in horizontal direction is 2 or 4, and the axis of above slag blocking wall 3 vertical direction is symmetrical arranged, and the number of the discharge orifice 4 on vertical direction is 2 or 3; Be provided with annular ring 7 above submersed nozzle 8, annular ring 7 is infundibulate, and the height of annular ring 7 is 70mm ~ 90mm, outside diameter 280mm ~ 300mm, end diameter 240mm ~ 260mm, and the less one end of annular ring 7 diameter is towards submersed nozzle 8.
During use, large bag long nozzle 2 is placed on the left of upper slag blocking wall 3, pass into molten steel, the molten steel flowed into flows into the region on the right side of slag blocking wall 3 from the gap bottom upper slag blocking wall 3 and tundish 3 and discharge orifice 4, again through lower slag blocking wall 1 and lower slag blocking wall 26, not only ensure that the metallurgical effect of molten steel, and add the active degree of molten steel between two lower slag blocking walls and upper slag blocking wall, improve piston flow district ratio, reduce stagnant area ratio, be beneficial to the floating of non-metallic inclusion, last molten steel flows into submersed nozzle 8 by annular ring 7, annular ring 7 effectively prevents bulky grain to be mingled with and enters crystallizer, and promote the floating of remaining field trash in molten steel.
Claims (3)
1. the device for controlling flow of ladle for sheet blank continuous casting, comprise tundish (1), slag blocking wall (3) is provided with successively in tundish (1), two lower slag blocking walls and submersed nozzle (8), it is characterized in that, the gap of 90 ~ 110mm is had between upper slag blocking wall (3) bottom and tundish (1) bottom, upper slag blocking wall (3) is provided with the discharge orifice (4) of multiple inclination, discharge orifice (4) towards the position in submersed nozzle (8) aperture, one end higher than the position in discharge orifice (4) other end aperture, submersed nozzle (8) is provided with funnel shaped annular ring (7), the less one end of annular ring 7 diameter is towards submersed nozzle 8.
2. the device for controlling flow of ladle for sheet blank continuous casting according to claim 1, it is characterized in that: described multiple discharge orifices (4) arrange in rectangular array, the number of the discharge orifice (4) in horizontal direction is 2 or 4, and the axis of above slag blocking wall (3) vertical direction is symmetrical arranged, the number of the discharge orifice (4) on vertical direction is 2 or 3.
3. the device for controlling flow of ladle for sheet blank continuous casting according to claim 1 and 2, is characterized in that: described discharge orifice (4) inclination angle is 5
°~ 10
°.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420437695.5U CN204052869U (en) | 2014-08-05 | 2014-08-05 | A kind of device for controlling flow of ladle for sheet blank continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420437695.5U CN204052869U (en) | 2014-08-05 | 2014-08-05 | A kind of device for controlling flow of ladle for sheet blank continuous casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204052869U true CN204052869U (en) | 2014-12-31 |
Family
ID=52194459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420437695.5U Expired - Fee Related CN204052869U (en) | 2014-08-05 | 2014-08-05 | A kind of device for controlling flow of ladle for sheet blank continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204052869U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110253006A (en) * | 2019-07-19 | 2019-09-20 | 马鞍山钢铁股份有限公司 | Continuous casting production, the device and method that remaining cutting quantity is cast for reducing continuous casting production |
-
2014
- 2014-08-05 CN CN201420437695.5U patent/CN204052869U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110253006A (en) * | 2019-07-19 | 2019-09-20 | 马鞍山钢铁股份有限公司 | Continuous casting production, the device and method that remaining cutting quantity is cast for reducing continuous casting production |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202185568U (en) | Novel double-flow slab continuous casting tundish flow control device | |
| CN101733373A (en) | Submerged nozzle for sheet billet continuous casting crystallizer | |
| CN104475695B (en) | Molten steel inclusion trap setting for continuous casting production exit | |
| CN205587639U (en) | Package in middle of modified steelmaking continuous casting | |
| CN104107905A (en) | Slab continuous casting tundish | |
| CN208099326U (en) | A kind of continuous casting production | |
| CN204052869U (en) | A kind of device for controlling flow of ladle for sheet blank continuous casting | |
| CN204159856U (en) | Current stabilization impacts vessel | |
| CN204997056U (en) | Middle current stabilizer of guaranteeing serviceability of T type continuous casting | |
| CN201565600U (en) | Immersion type water opening used for thin plate blank continuous casting crystallizer | |
| CN104999044B (en) | A kind of continuous cast mold constant-current stabilizer | |
| CN202688360U (en) | Converter steel tapping slag stopping device | |
| CN203209684U (en) | Six-hole submerged nozzle for pouring large square blank | |
| CN201776413U (en) | Water nozzle of continuous casting tundish | |
| CN204953892U (en) | A inclusion trapping apparatus for continuous casting crystallizer | |
| CN201572911U (en) | Submersed nozzle of super wide slab continuous casting mold | |
| CN204799939U (en) | Immersion nozzle structure | |
| CN210848317U (en) | Side-hole asymmetric submerged five-hole water gap for rectangular large square billet | |
| CN206185137U (en) | Middle package that splashes prevents to cast | |
| CN204108297U (en) | A kind of tundish current stabilizer | |
| CN101972840A (en) | Billet continuous casting machine and tundish thereof | |
| CN201603853U (en) | Quadripuntal submersed nozzle used for pouring conventional plate blank and preventing molten steel turbulence | |
| CN204159857U (en) | Tundish | |
| CN203197235U (en) | Continuous-casting porous adjustable argon blowing stopper rod | |
| CN204138693U (en) | A kind of slag-blocking apparatus of converter taphole |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20160805 |