CN217121734U - Spiral-flow type immersion nozzle - Google Patents
Spiral-flow type immersion nozzle Download PDFInfo
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- CN217121734U CN217121734U CN202220627841.5U CN202220627841U CN217121734U CN 217121734 U CN217121734 U CN 217121734U CN 202220627841 U CN202220627841 U CN 202220627841U CN 217121734 U CN217121734 U CN 217121734U
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- spiral
- conservancy diversion
- water conservancy
- spiral channel
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Abstract
The utility model belongs to the technical field of refractory material for the continuous casting, concretely relates to spiral-flow type immersion nozzle, including mouth of a river body, mouth of a river body include from last to down cross-section such as the last connecting portion that connects gradually with footpath portion, first diameter of becoming portion and second diameter of becoming footpath portion, second diameter of becoming in the portion set up the water conservancy diversion spacer block, with the limited entry hole of footpath portion inner wall, the entry extend to the bottom and the water conservancy diversion spacer block of first diameter of becoming footpath and be connected, the water conservancy diversion spacer block in be provided with from last spiral passage to down, spiral passage include multilayer annular channel, the annular channel end to end of adjacent layer. The utility model discloses balanced the volume of gushing water of water conservancy diversion separation block both sides export, consequently further can prevent because of the undulant phenomenon of liquid level appears in the volume of gushing water greatly, spiral channel has reduced the impact force degree of molten steel, is difficult to arouse the liquid level when reaching the export undulant.
Description
Technical Field
The utility model belongs to the technical field of refractory material for the continuous casting, concretely relates to spiral-flow type immersion nozzle.
Background
The main function of the submerged nozzle is to prevent secondary oxidation of the pouring flow of the tundish and molten steel splashing; the covering slag of the crystallizer is prevented from being involved into the molten steel; improve the flow state and heat flow distribution of the injection flow in the crystallizer. Thereby promoting the uniform growth of the blank shell in the crystallizer and being beneficial to the removal of gas and inclusions in steel. The submerged nozzle has remarkable effects on improving the quality of casting blanks, improving the labor conditions, stabilizing the continuous casting operation, preventing the surface defects of the casting blanks and the like, so the submerged nozzle is adopted for casting in slab continuous casting and bloom continuous casting of all countries in the world. It can be said that the appearance of the submerged entry nozzle, like the invention of the oscillating device of the crystallizer, brings an epoch-making progress to the development of the continuous casting technology.
Disclosure of Invention
An object of the utility model is to provide a spiral-flow type immersion nozzle to the problem that exists among the prior art.
The technical scheme of the utility model is that:
the utility model provides a spiral-flow type immersion nozzle, includes the mouth of a river body, the mouth of a river body include from last to down connected gradually last connecting portion, equal cross-section of cylinder type with footpath portion, first variable diameter portion and second variable diameter portion, second variable diameter portion in set up the water conservancy diversion spacer block, with the limited entry hole of footpath portion inner wall, the entry hole extend to the bottom and the water conservancy diversion spacer block of first variable diameter portion and be connected, the water conservancy diversion spacer block in be provided with from last spiral passage down, spiral passage include multilayer annular channel, the annular channel end to end of adjacent layer.
Specifically, the inlet at the upper end of the flow guide separation block is arc-shaped, and the radius of the arc is 15 mm.
Specifically, the diameter of the widest part of the diversion separation block is 76 mm.
Specifically, the spiral channel comprises a spiral channel inlet and a spiral channel outlet, the spiral channel inlet is positioned in the middle of the upper end of the flow guide separation block and corresponds to the inlet hole, and the spiral channel outlet is positioned in the middle of the lower end of the flow guide separation block.
Specifically, the inlet hole is bowl-shaped, and the radius of the bottom arc is 40 mm.
The utility model has the advantages that: the utility model discloses on current mouth of a river basis with the bottom of inlet hole directly be connected with the water conservancy diversion separation block, remove the interval between inlet hole and the water conservancy diversion separation block, reducible from the impact of the molten steel that the inlet hole got into to the water conservancy diversion separation block, and set up helical channel on the water conservancy diversion separation block, helical channel include helical channel entry and helical channel export, the helical channel entry be located water conservancy diversion separation block upper end middle part and correspond the inlet hole, the helical channel export be located water conservancy diversion separation block lower extreme middle part, the molten steel is shunted into three strands simultaneously under the inlet hole, two strands of molten steel disperse from water conservancy diversion separation block both sides, another strand is then shunted from the helical channel inside the separation block, has balanced the water inflow of water conservancy diversion separation block both sides export, consequently further can prevent because of the phenomenon that the liquid level fluctuates greatly appears in the amount of water inflow, helical channel has reduced the impact dynamics of molten steel, the liquid level fluctuation is not easily caused when the liquid reaches the outlet. This use novel improvement that provides can even the mouth of a river effluence, reduce the crystallizer liquid level fluctuation, prevent being drawn into of covering slag, effect that can full play continuous casting.
Drawings
Fig. 1 is a schematic sectional structure of the present invention;
fig. 2 is a cross-sectional structure diagram of the flow guide separation block.
The device comprises a 1 same-diameter part, a 2 first variable-diameter part, a 3 inlet hole, a 4 second variable-diameter part, a 5 diversion separation block, a 6 spiral channel, a 7 spiral channel outlet and an 8 spiral channel inlet.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings and the detailed description.
The utility model provides a spiral-flow type immersion nozzle, includes the mouth of a river body, the mouth of a river body include from last to down the equal cross-section of last connecting portion, cylinder type that connect gradually with footpath portion 1, first reducing portion 2 and second reducing portion 4, second reducing portion 4 in set up water conservancy diversion separation block 5, with 1 inner wall of footpath portion inject inlet hole 3, inlet hole 3 be the bowl type, its bottom curved radius is 40 mm. The inlet hole 3 extend to the bottom of first variable diameter portion 2 and be connected with water conservancy diversion separation block 5, water conservancy diversion separation block 5 in be provided with from last spiral channel 6 to down, spiral channel 6 include multilayer annular channel, the annular channel end to end of adjacent layer.
The inlet at the upper end of the diversion separation block 5 is arc-shaped, and the radius of the arc is 15 mm. The diameter of the widest part of the diversion separation block 5 is 76 mm. The spiral channel 6 comprises a spiral channel inlet 8 and a spiral channel outlet 7, the spiral channel inlet 8 is positioned in the middle of the upper end of the flow guide separation block 5 and corresponds to the inlet hole (3), and the spiral channel outlet 7 is positioned in the middle of the lower end of the flow guide separation block 5.
The utility model discloses gathering the molten steel in the in-service use process and getting off by the inlet hole and be shunted simultaneously for three strands, two strands of molten steel disperse from water conservancy diversion separating block both sides, another strand then flows from the inside helical channel of separating block, has equalized the water inflow of water conservancy diversion separating block both sides export, consequently further can prevent because of the big undulant phenomenon of liquid level that appears of water inflow, helical channel has reduced the impact force degree of molten steel, is difficult to arouse the liquid level when reaching the export undulant.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (5)
1. The utility model provides a spiral-flow type immersion nozzle, includes the mouth of a river body, the mouth of a river body include from last to down connected gradually last connecting portion, the equal cross-section of cylinder type with footpath portion (1), first variable diameter portion (2) and second variable diameter portion (4), second variable diameter portion (4) in set up water conservancy diversion spacer block (5), with footpath portion (1) inner wall inject inlet hole (3), its characterized in that, inlet hole (3) extend to the bottom and the water conservancy diversion spacer block (5) of first variable diameter portion (2) and be connected, water conservancy diversion spacer block (5) in be provided with from last spiral channel (6) to down, spiral channel (6) include multilayer annular channel, the annular channel end to end of adjacent layer.
2. A swirl-type submerged entry nozzle according to claim 1, wherein the inlet at the upper end of the flow-guiding separation block (5) is arc-shaped, and the radius of the arc is 15 mm.
3. A swirl-type submerged entry nozzle according to claim 1, characterised in that the widest point of the flow guiding and separating piece (5) has a diameter of 76 mm.
4. A swirl dip nozzle according to claim 1, wherein the spiral channel (6) comprises a spiral channel inlet (8) and a spiral channel outlet (7), the spiral channel inlet (8) is located at the middle of the upper end of the flow guide separation block (5) corresponding to the inlet hole (3), and the spiral channel outlet (7) is located at the middle of the lower end of the flow guide separation block (5).
5. A swirl dip nozzle according to claim 1, characterised in that the inlet opening (3) is bowl-shaped with a radius of the bottom arc of 40 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220627841.5U CN217121734U (en) | 2022-03-21 | 2022-03-21 | Spiral-flow type immersion nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220627841.5U CN217121734U (en) | 2022-03-21 | 2022-03-21 | Spiral-flow type immersion nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217121734U true CN217121734U (en) | 2022-08-05 |
Family
ID=82644974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220627841.5U Active CN217121734U (en) | 2022-03-21 | 2022-03-21 | Spiral-flow type immersion nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217121734U (en) |
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2022
- 2022-03-21 CN CN202220627841.5U patent/CN217121734U/en active Active
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