CN218487206U - Transition ladle current stabilizer for twin-roll thin strip continuous casting - Google Patents
Transition ladle current stabilizer for twin-roll thin strip continuous casting Download PDFInfo
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- CN218487206U CN218487206U CN202222236667.4U CN202222236667U CN218487206U CN 218487206 U CN218487206 U CN 218487206U CN 202222236667 U CN202222236667 U CN 202222236667U CN 218487206 U CN218487206 U CN 218487206U
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Abstract
The utility model provides a double-roller thin strip continuous casting is with transition package current stabilizer, including setting up the current stabilizer body of bottom surface one end in the transition package, current stabilizer body upper portion sets up the steady flow chamber of connecting the plug hole, current stabilizer body lateral wall sets up the intercommunication the water conservancy diversion hole in steady flow chamber, current stabilizer body one side top sets up the splashproof portion. The utility model provides a pair of double-roll thin strip continuous casting is with transition package current stabilizer can stabilize the molten bath liquid level, reduce the molten steel splash, avoid transition package mouth of a river to block up and improve and cast the area quality.
Description
Technical Field
The utility model relates to the technical field of steelmaking equipment, in particular to a transition ladle current stabilizer for twin-roll thin strip continuous casting.
Background
The twin-roll thin-strip continuous casting technology is a novel strip steel production technology and represents the highest level of hot rolling production lines in the current society. Molten steel enters a crystallizer consisting of two internal water-cooled casting rolls and side sealing plates with opposite rotation directions from a steel ladle through a tundish and a transition ladle to be solidified into a thin strip with the thickness of 1-5 mm, the cast strip is conveyed to a roller way through a swinging guide plate and a pinch roll, and then the thin strip is rolled by a rolling mill, cooled by spraying, sheared by flying shears and coiled. Compared with the traditional production line, the production process for the strip steel can save equipment such as a continuous casting machine, a heating furnace, a rough rolling unit, a finishing rolling unit and the like, shortens the production cost by 83 percent, can effectively reduce the exhaust emission, reduces the energy consumption and the environmental pollution, improves the production efficiency and the economic benefit, and accords with the economic development trend of current low carbon and environmental protection.
The transition ladle in the twin-roll thin strip continuous casting is equivalent to a microminiature tundish, is connected with a molten pool and is vital to stabilizing the liquid level of the molten pool and further stabilizing the pulling speed. In order to ensure that the casting machine can quickly enter a stable state after casting, and simultaneously ensure that the fluctuation quantity of parameters such as the liquid level of a molten pool, the pulling speed and the like after the casting is stable is within a process allowable range, not only the flow of molten steel flowing into the molten pool of the casting roller from a transition ladle needs to be accurately controlled, but also the stability of a molten steel flow field in the transition ladle needs to be ensured, and the blockage of a water gap caused by the fact that molten steel splashes to a water gap of the transition ladle in the casting stage is avoided or blocked, so that the flowing of the transition ladle is uneven, the liquid level stability of the molten pool is influenced, the pulling speed fluctuation is large, the quality of a cast strip is influenced, and the strip breakage is caused in serious cases.
The conventional transition ladle flow stabilizer has the functions of dispersing molten steel when the molten steel rebounds again after entering a tundish so as to reduce the impact on a surrounding covering agent, reduce the exposed area of the molten steel in a pouring impact area as much as possible and improve the metallurgical effect of the tundish. Because the molten steel liquid level in the twin-roll thin strip continuous casting transition ladle is low and no covering agent is used, the flow stabilizer of the twin-roll thin strip continuous casting transition ladle mainly has the functions of preventing molten steel from splashing, reducing secondary oxidation and avoiding the water gap of the transition ladle from being blocked.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a transition package current stabilizer for double-roll thin strip continuous casting is provided, which can stabilize the liquid level of a molten pool, reduce molten steel splashing, avoid the blockage of a transition package nozzle and improve the strip casting quality.
In order to solve the technical problem, the utility model provides a double-roller thin strip is transition package current stabilizer for continuous casting, including setting up the current stabilizer body of bottom surface one end in the transition package, current stabilizer body upper portion sets up the steady flow chamber of connecting the plug hole, current stabilizer body lateral wall sets up the intercommunication the water conservancy diversion hole in steady flow chamber, current stabilizer body one side top sets up the splashproof portion.
Furthermore, the diversion holes are arranged on the same side of the water gap of the transition ladle, and the height of the diversion holes is lower than the height of the liquid level in the transition ladle.
Furthermore, the opening direction of the flow guide holes is the horizontal direction, the upward inclined direction or the downward inclined direction, and the size of the flow guide holes gradually increases from inside to outside and expands outwards in a fan shape.
Further, the splashproof portion sets up the homonymy in the mouth of a river of transition package.
Furthermore, the width of the splash-proof part is half of the length of the periphery of the current stabilizer body, and the height of the splash-proof part is one third to one half of the height of the current stabilizer body.
Furthermore, the bottom of the current stabilizer body is fixed on the inner bottom surface of the transition ladle through a base.
Further, the area of the base is larger than that of the bottom surface of the current stabilizer body.
Furthermore, the bottom surface of the current stabilizer body is circular or square, and the base is circular or square matched with the bottom surface of the current stabilizer body.
The utility model provides a pair of thin continuous casting of taking of two rollers is with transition package current stabilizer, bottom surface one end sets up the current stabilizer in the transition package, set up the water conservancy diversion hole that communicates current stabilizer body steady flow chamber at current stabilizer body lateral wall, set up splashproof portion at current stabilizer body one side top, can slow down the interior molten steel velocity of flow of transition package, slow down the impact force, improve the interior molten steel flow field of transition package, stabilize the molten bath liquid level, reduce the molten steel splash, avoid the mouth of a river of transition package to can stabilize the thin continuous casting pulling speed of two rollers, improve and open and water the success rate, improve and water the stove number even, improve the cast strip quality.
And, the utility model provides a pair of double-roller thin strip continuous casting is with transition package current stabilizer, simple structure is reasonable, convenient to use is high-efficient, and the cost of manufacture is lower, can increase economic benefits.
Drawings
Fig. 1 is a schematic side view and a splash-proof diagram of a transition ladle where a transition ladle current stabilizer for twin roll thin strip casting provided by an embodiment of the present invention is located;
fig. 2 is a front view of a transition ladle in which a transition ladle flow stabilizer for twin roll thin strip continuous casting according to an embodiment of the present invention is located;
fig. 3 is a schematic structural view of a transition ladle flow stabilizer for twin roll thin strip continuous casting according to an embodiment of the present invention.
Detailed Description
Referring to fig. 1, 2 and 3, an embodiment of the present invention provides a transition ladle current stabilizer for twin roll thin strip continuous casting, including a current stabilizer body 1 disposed at one end of the inner bottom surface of a transition ladle 4, wherein, a current stabilization cavity 12 is disposed on the upper portion of the current stabilizer body 1, the current stabilizer body 1 is connected to a pouring hole 2 through the current stabilization cavity 12, and molten steel can be introduced into the current stabilization cavity 12 of the current stabilizer body 1 from the pouring hole 2.
Wherein, the side wall of the current stabilizer body 1 is provided with a flow guide hole 14 communicated with the current stabilizing cavity 12, and the top of one side of the current stabilizer body 1 is provided with a splash-proof part 13. After casting, molten steel flows into the flow stabilizing cavity 12 of the flow stabilizer body 1 from the pouring hole 2, the molten steel flows out from the flow guide hole 14, the flow velocity of the molten steel can be reduced, and the splash-proof part 13 arranged at the top of the flow stabilizer body 1 can also slow down the outflow of the molten steel entering the flow stabilizing cavity 12 from the top of the flow stabilizer body 1.
As a specific embodiment of the utility model, water conservancy diversion hole 14 sets up the homonymy at the mouth of a river 3 of transition package 4 to, the position of water conservancy diversion hole 14 on current regulator body 1 is less than the molten steel liquid level height h in the transition package 4.
As a specific embodiment of the present invention, the opening direction of the diversion hole 14 is a horizontal direction, an upward-inclined direction, or a downward-inclined direction. The size of the diversion hole 14 gradually increases from inside to outside and expands outward in a fan shape. Therefore, after the molten steel flows out of the flow guide holes 14, the area of the whole water gap 3 can be covered, and the flow field of the molten steel is more uniform.
As a specific embodiment of the present invention, the splash guard 13 is also disposed at the same side of the nozzle 3 of the transition ladle 4.
The width of the splash guard 13 is half of the length of the periphery of the current regulator body 1, and the height of the splash guard 13 is one third to one half of the height of the current regulator body 1. Wherein, the distance between the flow stabilizer body 1 and the water gap 3 is L, the distance between the retaining wall 5 in the transition ladle 4 and the flow stabilizer body 1 is 0.7L, and the maximum sputtering area of the molten steel is 0.65L after the splash-proof part 13 is arranged.
As a specific embodiment of the present invention, the bottom of the current stabilizer body 1 is fixed on the bottom surface inside the transition bag 4 through the base 11.
And the area of the base 11 is larger than that of the bottom surface of the current stabilizer body 1.
Wherein, the bottom surface of the current stabilizer body 1 is round or square, and the base 11 is round or square matched with the bottom surface of the current stabilizer body 1.
As a specific embodiment of the present invention, the bottom surface of the current stabilizer body 1 is circular, and the whole current stabilizer body 1 is in the shape of a circular truncated cone with a large bottom surface and a slightly smaller upper surface. A cylindrical flow stabilizing cavity 12 is arranged on the flow stabilizer body 1.
The utility model provides a pair of transition package current stabilizer is used in thin continuous casting of strip of two rollers through setting up splashproof portion 13 and water conservancy diversion hole 14 at current stabilizer body 1, can reduce the molten steel velocity of flow to slow down the impact force of molten steel, improve the interior molten steel flow field of transition package, stabilize the molten bath liquid level, reduce the molten steel splash, avoid transition package mouth of a river to block up, and can stabilize the thin continuous casting pulling speed of strip of two rollers, improve and open the success rate of watering, improve the continuous casting furnace number, improve the casting strip quality.
The transition ladle flow stabilizer for twin roll thin strip continuous casting provided by the present invention is specifically described below by way of example. Wherein, the current stabilizer body 1 and the base 11 thereof in this example are both circular.
The diameter position of base 11 is 400mm, highly is 30mm, and 1 bottom diameter of current regulator body is 360mm, and the diameter of 1 upper portion open-ended of current regulator body is 340mm, highly is 240mm, promptly, the diameter of the steady flow chamber 12 on 1 upper portion of current regulator body is 340mm, highly is 240mm. Wherein, the height of the diversion hole 14 is 120mm from the base 11, the length of the inner side opening of the diversion hole 14 is 200mm, the length of the outer side opening is 250mm, the width of the opening is 30mm, and the height of the splash-proof part 13 is 100mm in a semicircular shape. The flow stabilizer body 1 is embedded into a working layer by 60mm, the height h =130mm of the liquid level in the transition ladle 4 after casting, a water gap 3 of the transition ladle 4 after casting is not plugged, the liquid level in a molten pool fluctuates by +/-1 mm in the casting process, the fluctuation range is within the process requirement, the pulling speed fluctuates by +/-0.5 m/min, the fluctuation range is within the process requirement range, the casting process is stable, and the effect of stabilizing the flow and preventing splashing is achieved.
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, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (8)
1. A transition ladle flow stabilizer for twin-roll thin-strip continuous casting is characterized in that: including setting up current regulator body (1) of bottom surface one end in transition package (4), current regulator body (1) upper portion sets up stationary flow chamber (12) of connecting plug hole (2), current regulator body (1) lateral wall sets up the intercommunication water conservancy diversion hole (14) of stationary flow chamber (12), current regulator body (1) one side top sets up splashproof portion (13).
2. The transition ladle flow stabilizer for twin roll strip casting according to claim 1, characterized in that: the diversion holes (14) are arranged on the same side of the water gap (3) of the transition ladle (4), and the height of the diversion holes (14) is lower than the liquid level height in the transition ladle (4).
3. The transition ladle flow stabilizer for twin roll strip casting according to claim 2, characterized in that: the opening direction of the flow guide holes (14) is the horizontal direction, the upward inclined direction or the downward inclined direction, and the size of the flow guide holes (14) is gradually increased from inside to outside and expands outwards in a fan shape.
4. The transition ladle flow stabilizer for twin roll strip casting according to claim 1, characterized in that: the splash-proof part (13) is arranged on the same side of the water gap (3) of the transition ladle (4).
5. The transition ladle flow stabilizer for twin roll strip casting according to claim 4, characterized in that: the width of the splash-proof part (13) is half of the length around the current stabilizer body (1), and the height of the splash-proof part (13) is one third to one half of the height of the current stabilizer body (1).
6. The transition ladle flow stabilizer for twin roll strip casting according to claim 1, characterized in that: the bottom of the current stabilizer body (1) is fixed on the inner bottom surface of the transition bag (4) through a base (11).
7. The transition ladle flow stabilizer for twin roll strip casting according to claim 6, characterized in that: the area of the base (11) is larger than that of the bottom surface of the current stabilizer body (1).
8. The transition ladle flow stabilizer for twin roll strip casting according to claim 7, characterized in that: the bottom surface of the current stabilizer body (1) is circular or square, and the base (11) is circular or square matched with the bottom surface of the current stabilizer body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222236667.4U CN218487206U (en) | 2022-08-24 | 2022-08-24 | Transition ladle current stabilizer for twin-roll thin strip continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222236667.4U CN218487206U (en) | 2022-08-24 | 2022-08-24 | Transition ladle current stabilizer for twin-roll thin strip continuous casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218487206U true CN218487206U (en) | 2023-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222236667.4U Active CN218487206U (en) | 2022-08-24 | 2022-08-24 | Transition ladle current stabilizer for twin-roll thin strip continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218487206U (en) |
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2022
- 2022-08-24 CN CN202222236667.4U patent/CN218487206U/en active Active
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