CN201082466Y - Rotating ladle long water gap - Google Patents
Rotating ladle long water gap Download PDFInfo
- Publication number
- CN201082466Y CN201082466Y CNU2007200386587U CN200720038658U CN201082466Y CN 201082466 Y CN201082466 Y CN 201082466Y CN U2007200386587 U CNU2007200386587 U CN U2007200386587U CN 200720038658 U CN200720038658 U CN 200720038658U CN 201082466 Y CN201082466 Y CN 201082466Y
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- long nozzle
- guiding device
- molten steel
- steel
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Abstract
The utility model discloses a rotating type steel ladle long water slot, a step is arranged at the position of the upper part of the cavity, the both ends of a steel liquid guiding device are positioned on the step, and the lower end of a limiting inner pipe is covered at the both ends of the steel liquid guiding device, Because the guiding device of the utility model ensures the steel liquid to generate rotation, and is uniformly threw on the circumferential inner wall of the long water slot, the downward impact force of the steel liquid is effectively reduced, the kinetic energy and the flowing velocity of the steel liquid at the outlet of the long water slot are reduced, the mixed impact of the steel slag in the pouring basket impact zone is reduced, the slag reeling problem of the steel liquid is eliminated, the agitation on the liquid level of the steel liquid in the pouring basket impact zone is reduced, to ensure that the foreign impurity and the air bubble in the steel liquid are easy to float, simultaneously, and the occurrence of the scaffolding phenomenon on the inner wall of the long water slot can be reduced. The structure of the utility model is simple, the manufacturing expense is low, the utility model is convenient for being prompted and applied, and the economic efficiency is high.
Description
Technical field:
The utility model relates to steel-making continuous casting equipment, is specifically related to ladle long nozzle.
Background technology:
At present, in steel-making continuous casting is produced, ladle to the long nozzle of tundish because it is straight-through hollow structure, therefore, when ladle when tundish is put molten steel, molten steel flow speed is fast, and the molten steel in the tundish is formed bigger impulsive force, field trash, slag, bubble etc. are mixed in the molten steel, influence slab quality.In recent years, the scheme that the insider seeks to address this problem in research, as in China's calendar year 2001 iron and steel annual meeting, Korea S Pohang Iron and Steel Corporation said that they are are researching and developing this project in the report, but does not announce concrete measure; People such as shinichiroYOKOYA have reported their result of study in laboratory applications mathematical simulation and physical analogy the 1208th～1214 page of " international iron and steel magazine " the 10th phase of calendar year 2001, proved and reduced the advantageous effects that molten steel is brought the tundish impulsive force, but do not seen correlation technique measure report so far yet.
Summary of the invention:
The technical problems to be solved in the utility model provides a kind of long nozzle simple in structure, easy to make, and it can effectively reduce the impulsive force of molten steel to tundish, improves molten steel flow field and distributes, and minimizing slag field trash mixes and dashes, and improves slab quality.
The utility model is achieved through the following technical solutions:
A kind of rotary ladle long nozzle, its inner chamber upper position is provided with step, and the two ends of molten steel guiding device are positioned on the step, and spacing interior pipe lower end covers in the two ends of molten steel guiding device; The two ends of described molten steel guiding device and step, spacing interior pipe are matched in clearance.
Described guiding device is a rugby shape, and spherome surface is provided with the spirality flow deflector, and the angle of spirality flow deflector and rugby long axis of body is 0-10 °.
A kind of rotary ladle long nozzle, its inner chamber upper position is provided with step, and the two ends of molten steel guiding device are positioned on the step, and spacing interior pipe lower end is pressed on the two ends of molten steel guiding device.
Described molten steel guiding device 3 is a rectangular slab, and the limit, two ends is 90 ° and twists the formation helical form up and down.
The step of long nozzle is isometrical with the intracavity diameter of lower part; Or step is progressive less than delivery port place diameter with the intracavity diameter of lower part.
Beneficial effect:
One, the utility model is provided with the guiding device that has helical blade at the long nozzle inner chamber, when molten steel impacts the guiding device surface from top to bottom, helical blade is under impact force action, begin rotation, make a part of potential energy of steel stream change into the rotation energy, the design of long nozzle exit flare in addition, thereby effectively reduced the impulsive force under steel flows to, the kinetic energy and the flow velocity of long nozzle exit molten steel have been reduced, reduced mixed the dashing of middle bag impact zone slag, eliminated molten steel volume slag problem, reduced the stirring of middle bag impact zone liquid steel level simultaneously, made field trash in the molten steel, the easier come-up of bubble.
Another design of the present utility model, be the limit, two ends up and down of guiding device progressively to be twisted 90 ° form helical form, this guiding device is fixed in the inner chamber, when molten steel impacts limit, guiding device upper end from top to bottom, molten steel flows downward twist along the two sides of guiding device, this technical scheme can reach the effect of above-mentioned choked flow molten steel equally, and simultaneously, this technical scheme also has the strong advantage of anti-scouring capability.
Two, because guiding device makes molten steel produce rotation, field trash and bubble collide mutually in the molten steel thereby make, and are assembled and grow up, and are able to very fast come-up when injecting after wrapping.
Three, because guiding device makes molten steel produce rotation, and evenly got rid of all inwalls, therefore, can be reduced the degree of superheat of molten steel, reduced the speed of long nozzle exit molten steel, simultaneously, can be reduced the generation of long nozzle inwall dross phenomenon to long nozzle.
Four, the utility model is simple in structure, manufacturing cost is low, is convenient to promote the use of the economic benefit height.
Description of drawings:
Fig. 1 is for being provided with the vertical partial schematic sectional view of guiding device of rugby shape in the long nozzle;
Fig. 2 is the vertical cross-sectional schematic of Fig. 1 half-twist (not comprising guiding device).
The specific embodiment:
As shown in Figure 1, 2, the utility model is provided with step 2 at long nozzle 1 inner chamber upper position, the two ends of molten steel guiding device 3 are positioned on the step 2, step 2 upper surfaces are provided with the groove 6 that is complementary with guiding device 3 two ends, pipe 4 lower end surfaces also are provided with the groove 6 that is complementary with guiding device 3 two ends in spacing, and this groove 6 covers in the two ends of molten steel guiding device 3; The groove 6 of the two ends of described molten steel guiding device 3 and step 2, spacing interior pipe 4 is a matched in clearance.
As shown in Figure 1, described guiding device 3 is a rugby shape, and spherome surface is provided with spirality flow deflector 5, and spirality flow deflector 5 is 5 ° with the angle of rugby long axis of body.
Still as shown in Figure 1, 2, spacing in pipe 4 upper port tube wall be set to domaticly, be complementary with the falred entrance of long nozzle 1 upper port.The inner wall surface of spacing interior pipe 4 is coaxial, five equilibrium is provided with guiding gutter 7.
Still as shown in Figure 1, 2, long nozzle step 2 is progressive less than delivery port place diameter with the intracavity diameter of lower part.
The utility model is provided with step 2 at long nozzle 1 inner chamber upper position, and the two ends of molten steel guiding device 3 are positioned on the step 2, and spacing interior pipe 4 lower ends are pressed on the two ends of molten steel guiding device 3, and guiding device 3 is fixed in the inner chamber.Molten steel guiding device 3 is a rectangular slab, and the limit, two ends is progressively twisted 90 ° and formed spiral helicine guiding device up and down.Present embodiment does not provide diagram.
All the other are implemented as embodiment 1.
Claims (10)
1. rotary ladle long nozzle, it is characterized in that: long nozzle (1) inner chamber upper position is provided with step (2), the two ends of molten steel guiding device (3) are positioned on the step (2), spacing in pipe (4) lower end cover in the two ends of molten steel guiding device (3); The two ends of described molten steel guiding device (3) and step (2), spacing interior pipe (4) are matched in clearance.
2. a kind of rotary ladle long nozzle as claimed in claim 1 is characterized in that: described guiding device (3) is a rugby shape, and spherome surface is provided with spirality flow deflector (5), and spirality flow deflector (5) is 0-10 ° with the angle of rugby long axis of body.
3. a kind of rotary ladle long nozzle as claimed in claim 1 is characterized in that: described step (2) upper surface, spacing interior pipe (4) lower end surface are provided with the groove (6) that is complementary with guiding device (3) two ends.
4. a kind of rotary ladle long nozzle as claimed in claim 1 is characterized in that: the upper port tube wall of pipe (4) is set to domaticly in spacing, is complementary with the falred entrance of long nozzle (1) upper port.
5. a kind of rotary ladle long nozzle as claimed in claim 1 is characterized in that: the inner wall surface of spacing interior pipe (4) is coaxial, five equilibrium is provided with guiding gutter (7).
6. a kind of rotary ladle long nozzle as claimed in claim 1 is characterized in that: the step of long nozzle (2) is isometrical with the intracavity diameter of lower part; Or step (2) is progressive less than delivery port place diameter with the intracavity diameter of lower part.
7. rotary ladle long nozzle, it is characterized in that: long nozzle (1) inner chamber upper position is provided with step (2), the two ends of molten steel guiding device (3) are positioned on the step (2), spacing in pipe (4) lower end be pressed on the two ends of molten steel guiding device (3); Described molten steel guiding device (3) is a rectangular slab, and the limit, two ends is 90 ° and twists the formation helical form up and down.
8. a kind of rotary ladle long nozzle as claimed in claim 7 is characterized in that: the upper port tube wall of pipe (4) is set to domaticly in spacing, is complementary with the falred entrance of long nozzle (1) upper port.
9. a kind of rotary ladle long nozzle as claimed in claim 7 is characterized in that: the inner wall surface of spacing interior pipe (4) is coaxial, five equilibrium is provided with guiding gutter (7).
10. a kind of rotary ladle long nozzle as claimed in claim 7 is characterized in that: the step of long nozzle (2) is isometrical with the intracavity diameter of lower part; Or step (2) is progressive less than delivery port place diameter with the intracavity diameter of lower part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200386587U CN201082466Y (en) | 2007-07-13 | 2007-07-13 | Rotating ladle long water gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200386587U CN201082466Y (en) | 2007-07-13 | 2007-07-13 | Rotating ladle long water gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201082466Y true CN201082466Y (en) | 2008-07-09 |
Family
ID=39624929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200386587U Expired - Fee Related CN201082466Y (en) | 2007-07-13 | 2007-07-13 | Rotating ladle long water gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201082466Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102328036A (en) * | 2011-08-18 | 2012-01-25 | 内蒙古包钢钢联股份有限公司 | Method for restraining molten steel from washing off steel ingot mould in top casting |
| CN117399610A (en) * | 2023-12-15 | 2024-01-16 | 江阴市盛龙冶金机械制造有限公司 | Ladle slewer for steelmaking |
-
2007
- 2007-07-13 CN CNU2007200386587U patent/CN201082466Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102328036A (en) * | 2011-08-18 | 2012-01-25 | 内蒙古包钢钢联股份有限公司 | Method for restraining molten steel from washing off steel ingot mould in top casting |
| CN117399610A (en) * | 2023-12-15 | 2024-01-16 | 江阴市盛龙冶金机械制造有限公司 | Ladle slewer for steelmaking |
| CN117399610B (en) * | 2023-12-15 | 2024-02-20 | 江阴市盛龙冶金机械制造有限公司 | Ladle slewer for steelmaking |
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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: 20080709 Termination date: 20100713 |