CN220837908U - Tundish structure for preventing molten steel from impacting - Google Patents
Tundish structure for preventing molten steel from impacting Download PDFInfo
- Publication number
- CN220837908U CN220837908U CN202322471945.9U CN202322471945U CN220837908U CN 220837908 U CN220837908 U CN 220837908U CN 202322471945 U CN202322471945 U CN 202322471945U CN 220837908 U CN220837908 U CN 220837908U
- Authority
- CN
- China
- Prior art keywords
- molten steel
- tundish
- curved surface
- pair
- impact
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 60
- 239000010959 steel Substances 0.000 title claims abstract description 60
- 230000003116 impacting effect Effects 0.000 title abstract description 7
- 239000002893 slag Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 11
- 238000007654 immersion Methods 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005253 cladding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Continuous Casting (AREA)
Abstract
The utility model discloses a tundish structure capable of preventing molten steel from impacting, which relates to the technical field of tundish and comprises a tundish shell, a pair of slag blocking walls and a pair of branch ports, wherein the center position of the upper top surface of the tundish shell is inserted into and provided with a submerged nozzle; according to the utility model, the impact of the molten steel is received through the receiving block, the falling molten steel is gradually and upwards flushed from the backflow curved surface of the groove to the falling molten steel along the center bulge of the receiving block and the inner wall of the groove, and the falling molten steel impact each other to reduce the speed and slow flow, so that the impact of the molten steel to the inside of the tundish is reduced, the molten steel can be ensured to be uniformly discharged from each tributary, and the production quality of subsequent products is improved.
Description
Technical Field
The utility model relates to the technical field of tundish, in particular to a tundish structure for preventing molten steel from impacting.
Background
The tundish is a buffer vessel between the ladle and the mold for uniformly distributing the molten steel into the mold. The tundish is used as a continuous reaction vessel, the internal quality of the tundish plays a decisive role on the quality of molten steel, otherwise the tundish pollutes the molten steel, thereby influencing the heat transfer condition in a crystallizer, leading to uneven surface of a continuous casting billet and possibly causing cracks on the surface.
The reason for whether the inner layer of the tundish is easy to damage is that besides the selection of the material, the inner layer is impacted by the falling molten steel of the ladle, the inner layer of the tundish is easy to damage due to the impact of the molten steel, the flow of the molten steel in the tundish is unstable, the molten steel can not be ensured to flow out stably from all branches uniformly, and the production quality of subsequent products is affected.
Disclosure of utility model
According to the structure of the tundish preventing molten steel from impacting, the impact of the molten steel is received through the receiving block, the falling molten steel is impacted with each other by the falling molten steel which is obliquely upwards rushed to the falling molten steel along the center bulge of the receiving block and the inner wall of the groove and finally flows back from the curved surface of the groove, so that the impact of the molten steel to the inside of the tundish is reduced, the molten steel can be discharged from all branches uniformly, and the production quality of subsequent products is improved.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a prevent ladle structure in middle of molten steel impact, includes the tundish casing, a pair of slag wall and a pair of branch mouth, the top surface central point puts and inserts to set up the immersion nozzle on the tundish casing, and a pair of slag wall sets up in the middle the inside top surface immersion nozzle both sides of tundish casing, and a pair of branch mouth sets up in the middle of the cladding body bottom surface is close to the edge both sides, the internal bottom central point of middle cladding puts and is provided with the carrier block, the carrier block upper surface is seted up flutedly, recess bottom central point puts and is equipped with the arch, protruding cone shape, be the curved surface in the recess, the curved surface of protruding one side is down following the curved surface, the recess edge sets up the backward flow curved surface of slope, the tangential direction of backward flow curved surface all is towards the direction of the molten steel whereabouts of immersion nozzle.
Preferably, the positions of the side walls of the bearing plate corresponding to the grooves are uniformly provided with a plurality of liquid outlet holes.
Preferably, the edges of the bearing plate and the edges of the grooves are provided with fillets.
The utility model provides a tundish structure for preventing molten steel from impacting, which has the following beneficial effects:
1. According to the utility model, the impact of molten steel is received through the receiving block arranged at the bottom of the tundish below the submerged nozzle, the receiving block is provided with the groove, the center of the bottom of the groove is provided with the conical bulge, the tangential direction of the curved surface of the edge of the groove faces the liquid outlet of the submerged nozzle, the falling molten steel is impacted with each other along the bulge and the inner wall of the groove and finally flows upwards obliquely from the backflow curved surface of the groove, so that the flow speed of the molten steel is controlled at the initial position, the impact of the molten steel on the inside of the tundish is reduced, the molten steel can be discharged from all branches uniformly after the slow flow is stable, and the production quality of subsequent products is improved;
2. The grooves of the bearing blocks are uniformly provided with the liquid outlet holes, and a part of molten steel entering the grooves uniformly flows out from the liquid outlet holes, so that the molten steel in the grooves is reduced, the fluidity of the molten steel in the grooves is increased, and the offset effect of the inclined upward curved surface molten steel on the falling molten steel is increased. From the outside, all be equipped with the fillet at the upper surface edge of accepting piece and recess edge, reduce the damage of molten steel flow to the bearing piece, also reduce the pollution in the tundish simultaneously.
Drawings
FIG. 1 is a schematic view of a tundish structure steel liquid impact bearing block for preventing steel liquid impact according to the present utility model.
FIG. 2 is a front cross-sectional view of a tundish structure for preventing molten steel from being impacted in accordance with the present utility model.
FIG. 3 is a top view of a bearing block in an anti-molten steel impact tundish structure according to the present utility model.
In the figure: 1. a bearing block; 2. a groove; 3. a protrusion; 4. a lower straight curved surface; 5. a reflux curved surface; 6. a liquid outlet hole; 7. round corners; 8. a submerged entry nozzle; 9. a tundish shell; 10. slag blocking wall; 11. and a branching port.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-2, the tundish structure capable of preventing molten steel from impacting comprises a tundish shell 9, a pair of slag blocking walls 10 and a pair of branch ports 11, wherein the immersed water ports 8 are inserted into the center position of the upper top surface of the tundish shell 9, the pair of slag blocking walls 10 are arranged on two sides of the immersed water ports 8 on the upper top surface inside the tundish shell 9, the pair of branch ports 11 are arranged on two sides of the bottom surface of the tundish shell 9 near the edges, a bearing block 1 is arranged at the center position in the bottom of the tundish shell 9, a groove 2 is formed in the upper surface of the bearing block 1, a protrusion 3 is arranged at the center position of the bottom of the groove 2, the protrusion 3 is in a cone shape, a curved surface is arranged in the groove 2, the curved surface on one side of the protrusion 3 is a downward curved surface 4, the edge of the groove 2 is provided with inclined backflow curved surfaces 5, and tangential directions of the backflow curved surfaces 5 face the direction of molten steel falling of the immersed water ports 8; a plurality of liquid outlet holes 6 are uniformly formed in the side wall of the bearing plate at positions corresponding to the grooves 2; the edges of the bearing plate and the edges of the grooves 2 are respectively provided with a round angle 7.
The detailed connection means are known in the art, and the following mainly introduces the working principle and process, specifically as follows:
According to the description, as shown in fig. 1-2, when the utility model works, the submerged nozzle 8 at the center of the tundish shell 9 sends molten steel of a ladle to the tundish, the molten steel directly impacts the bearing block 1 arranged at the center of the tundish shell 9 and falls onto the protrusion 3 at the center of the groove 2 of the bearing block 1, the surface impact damage possibility can be reduced because the inside of the groove 2 is a curved surface, meanwhile, the protrusion 3 is a downward curved surface 4, the edge of the groove 2 is a backflow curved surface 5, and the tangential direction of the backflow curved surface 5 faces the molten steel falling down to the submerged nozzle 8, therefore, the falling molten steel flows along the downward curved surface 4 to the backflow curved surface 5, the molten steel of the backflow curved surface 5 is obliquely upwards flushed to the molten steel falling down to the submerged nozzle 8, and the flow directions of the submerged nozzle 8 are b, and a and b form a pair of impact, and a and b form a pair, so as to relatively offset a part, thereby reduce the speed, reduce the slag impact on the inside of the tundish, ensure that the molten steel can flow evenly and flow through the product from the side walls 11 after the product is discharged from the respective side walls 11, and the quality of the product is guaranteed by referring to fig. 1 analysis.
Wherein, a plurality of liquid outlet holes 6 are evenly arranged on the side wall of the bearing plate corresponding to the position of the groove 2, a part of molten steel entering the groove 2 evenly flows out from the liquid outlet holes 6, and the molten steel in the groove 2 is reduced, so that the fluidity of the molten steel in the groove 2 is increased, and the offset effect of the curved surface oblique upward molten steel on the falling molten steel is increased.
In addition, the edges of the carrier plate and the edges of the grooves 2 are provided with fillets 7, so that the damage of molten steel flow to the carrier block 1 is reduced, and the generation of slag pollution in the tundish is also reduced.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a prevent ladle structure in middle of molten steel impact, includes tundish casing (9), a pair of slag wall (10) and a pair of branch mouth (11), top surface central point puts and inserts and set up immersion nozzle (8) on tundish casing (9), a pair of slag wall (10) set up in the middle of the inside top surface immersion nozzle (8) both sides of tundish casing (9), a pair of branch mouth (11) set up in tundish casing (9) bottom surface be close to the edge both sides, a serial communication port, the bottom central point put in tundish casing (9) is provided with carrier block (1), recess (2) have been seted up to carrier block (1) upper surface, recess (2) bottom central point put and are equipped with arch (3), protruding (3) become the cone shape, be the curved surface in recess (2), the curved surface of arch (3) one side is down in order curved surface (4), recess (2) edge sets up into the backward flow curved surface (5) of slope, the tangential direction of backward flow curved surface (5) all is towards the direction of falling of immersion nozzle (8).
2. The tundish structure for preventing molten steel from being impacted according to claim 1, wherein a plurality of liquid outlet holes (6) are uniformly formed in the side wall of the bearing plate at positions corresponding to the grooves (2).
3. The tundish structure for preventing molten steel from being impacted according to claim 1, wherein the edges of the bearing plate and the edges of the grooves (2) are provided with round corners (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322471945.9U CN220837908U (en) | 2023-09-12 | 2023-09-12 | Tundish structure for preventing molten steel from impacting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322471945.9U CN220837908U (en) | 2023-09-12 | 2023-09-12 | Tundish structure for preventing molten steel from impacting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220837908U true CN220837908U (en) | 2024-04-26 |
Family
ID=90741936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322471945.9U Active CN220837908U (en) | 2023-09-12 | 2023-09-12 | Tundish structure for preventing molten steel from impacting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220837908U (en) |
-
2023
- 2023-09-12 CN CN202322471945.9U patent/CN220837908U/en active Active
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