Flow stabilizer for continuous casting tundish and tundish

Abstract

The utility model relates to the technical field of a current stabilizer for a tundish, in particular to a current stabilizer for a continuous casting tundish and the tundish, the current stabilizer for the continuous casting tundish is applied to protection of a tundish body and comprises a current stabilizer body, a supporting opening, a water inlet pipe, a clamping mechanism, a water passing through hole and a current stabilizing mechanism, a flow stabilizer body is fixedly arranged in the tundish body, the flow stabilizer body penetrates through the inner top wall of the tundish body and extends out of the tundish body, the supporting opening is formed in the inner top wall of the flow stabilizer body, the water inlet pipe is arranged in the supporting opening in a penetrating mode, and the clamping mechanism is arranged on the side wall of the supporting opening and used for clamping and fixing the water inlet pipe. A plurality of water passing through holes are obliquely formed in the side wall of the current stabilizer body, the current stabilizing mechanism is arranged in the current stabilizer body and used for reducing the impact force of molten steel on the tundish body, and through the technical scheme, the problem that the service life of a current stabilizer in the related technology is affected due to the fact that the current stabilizer is impacted by the molten steel for a long time is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of flow stabilizers for tundishes, in particular to a flow stabilizer for a continuous casting tundish and the tundish. Background Art

[0002] The continuous casting tundish flow stabilizer is a functional refractory component installed at the bottom of the tundish impact zone to stabilize the flow of molten steel in the tundish water inlet area, prevent slag from being drawn into the molten steel and causing internal quality defects of the continuous casting billet, promote the floating of inclusions, and reduce the splashing of molten steel. Its effect is better than that of ordinary impact plates in improving the cleanliness of molten steel and alleviating the scouring of molten steel on the tundish wall.

[0003] For example, the utility model patent with publication number CN220837907U discloses a flow stabilizer and a tundish for a continuous casting tundish, including a flow stabilizer body, which is installed in the tundish, and the flow stabilizer body is fitted with the side of the top of the tundish where an overflow groove is provided. A hollow inner cavity with an open top is provided in the flow stabilizer body, and the hollow inner cavity has a trapezoidal structure, and the cross-section of the hollow inner cavity gradually decreases from top to bottom. A plurality of inclined through holes are provided on one side of the flow stabilizer body, and a slag discharge groove is provided on the top of the other side of the flow stabilizer body, and the slag discharge groove is connected to the overflow groove.

[0004] When in use, the above-mentioned existing technology can use the flow stabilizer and the impact plate to receive the impact of the falling molten steel, thereby preventing the impact force of the molten steel from damaging the inner wall of the ladle. However, the impact force of the falling molten steel falls directly on the inner bottom wall of the flow stabilizer, which can easily cause damage to the flow stabilizer under long-term impact, thereby affecting the service life of the flow stabilizer. Utility Model Content

[0005] The utility model provides a flow stabilizer for a continuous casting tundish and the tundish, solving the problem in the related art that the flow stabilizer is impacted by molten steel for a long time and thus has a shortened service life.

[0006] The technical solution of the utility model is as follows: a flow stabilizer for a continuous casting tundish, used for protecting the tundish body, comprising a flow stabilizer body, a support port, a water inlet pipe, a clamping mechanism, a water through hole and a flow stabilizing mechanism;

[0007] The flow stabilizer body is fixedly arranged in the tundish body, and the flow stabilizer body passes through the inner top wall of the tundish body and extends out of the tundish body;

[0008] The support opening is provided on the inner top wall of the flow stabilizer body;

[0009] The water inlet pipe is arranged through the supporting opening;

[0010] The clamping mechanism is provided on the side wall of the support opening and is used to clamp and fix the water inlet pipe;

[0011] A plurality of water-passing holes are obliquely provided on the side wall of the flow stabilizer body;

[0012] The flow stabilizing mechanism is arranged in the flow stabilizer body and is used to reduce the impact force of molten steel on the tundish body.

[0013] Preferably, the flow stabilizing mechanism includes:

[0014] A water inlet, wherein the water inlet pipe is sealed at one end close to the tundish body, and a plurality of water inlets are obliquely opened on the side wall of the water inlet pipe;

[0015] A protection groove, the protection groove is configured to be arc-shaped and is provided on the inner bottom wall of the flow stabilizer body;

[0016] The convex block is set in a semicircular shape and is fixedly set at the bottom of the protective groove.

[0017] Furthermore, a protective plate is included. The protective plate is configured as an inclined ring. The protective plate is arranged around the water inlet. A plurality of connecting rods are fixedly arranged between the protective plate and the inner bottom wall of the flow stabilizer body.

[0018] Furthermore, it also includes a plurality of arc-shaped speed reduction plates, and the plurality of speed reduction plates are staggeredly arranged in the water inlet pipe, and the speed reduction plates are fixedly connected to the inner wall of the water inlet pipe.

[0019] Furthermore, the clamping mechanism includes:

[0020] Clamping grooves, a plurality of said clamping grooves are opened on the side wall of the support opening;

[0021] a clamping block, the clamping block being disposed in the clamping groove;

[0022] A clamping plate, wherein two clamping plates are hingedly provided between each clamping block and the bottom of the clamping groove;

[0023] An angle adjustment mechanism is provided in the clamping groove and is used to adjust the angle of the clamping plate.

[0024] On the basis of the above solution, the angle adjustment mechanism includes:

[0025] An adjustment port is provided on the clamping plate;

[0026] An adjusting through hole is provided on the side wall of the adjusting port;

[0027] an adjusting block, the adjusting block being arranged in the adjusting port;

[0028] Adjustment columns, a plurality of which are fixedly provided on the side wall of the adjustment block, the adjustment columns corresponding to the adjustment through holes one by one, and extending into the adjustment through holes;

[0029] A synchronous movement mechanism is provided in the stabilizer body and is used for controlling the synchronous movement of the plurality of regulating blocks.

[0030] On the basis of the above scheme, the synchronous movement mechanism includes:

[0031] A first cavity, the first cavity is configured as an annular shape and is opened on one side of the clamping groove;

[0032] an adjusting ring, the adjusting ring being slidably disposed in the first cavity, and an inner wall of the adjusting ring being provided with an internal thread;

[0033] an adjustment port, the adjustment port being provided between the clamping groove and the first cavity;

[0034] Wherein, the adjustment block passes through the adjustment port and is fixedly connected to the adjustment ring;

[0035] A driving mechanism is provided on the stabilizer body and is used for controlling the movement of the adjusting ring.

[0036] On the basis of the above solution, the driving mechanism includes:

[0037] A driving port, the driving port being configured in an annular shape and being opened on the inner top wall of the first cavity;

[0038] an externally threaded tube, the externally threaded tube being rotatably mounted on the inner bottom wall of the first cavity, the externally threaded tube being threadably engaged with the adjusting ring, the externally threaded tube penetrating the driving port and extending out of the flow stabilizer body;

[0039] A handwheel is fixedly arranged on the outer wall of the externally threaded tube.

[0040] On the basis of the above solution, a slag discharge mechanism is further included. The slag discharge mechanism is arranged on the stabilizer body and is used to discharge the steel slag in the stabilizer body. The slag discharge mechanism includes:

[0041] a slag discharge trough, the slag discharge trough being provided on the tundish body;

[0042] A slag discharge pipe, the slag discharge pipe is connected and arranged on the side wall of the flow stabilizer body near one end of the water inlet pipe;

[0043] Wherein, the slag discharge pipe is aligned with the slag discharge trough.

[0044] It should also be noted that the tundish includes a flow stabilizer for a continuous casting tundish as described in any of the above solutions.

[0045] The working principle and beneficial effects of the utility model are as follows:

[0046] 1. In the present invention, by providing a flow stabilizing mechanism, the molten steel in the water inlet pipe can impact the protective plate through the inclined water inlet during its falling process, and then the inclined protective plate can divert the molten steel, so that the molten steel is spread flat on the protective plate during its falling process, increasing the falling area of the molten steel. The molten steel falling on the protective plate can then impact the curved protrusions, which can reduce the impact force through the curved surface, thereby effectively preventing the impact of the molten steel on the flow stabilizer body during its falling process;

[0047] 2. In the present invention, the speed reduction plate is provided to improve the flow path of the molten steel during its flow in the water inlet pipe, thereby reducing the flow velocity of the molten steel and reducing the impact force of the molten steel on the flow stabilizer body;

[0048] 3. In the present invention, the slag will float up in the flow stabilizer body through the slag discharge mechanism. As the amount of molten steel in the flow stabilizer body increases, the slag will be discharged into the slag discharge trough through the slag discharge pipe, thereby achieving the discharge of the slag.

[0049] 4. In the present invention, the clamping mechanism allows the angle adjustment mechanism to control the movement of the clamping block after the deceleration plate is damaged by the impact of molten steel. This allows the water inlet pipe to be replaced by clamping and unlocking the side wall of the water inlet pipe.

[0050] 5. In the utility model, through the arrangement of the flow stabilizer body, the support port, the water inlet pipe, the clamping mechanism, the water through hole and the flow stabilizing mechanism, it is convenient to increase the area of the molten steel falling through the operation of the flow stabilizing mechanism, and the impact force is reduced by the curved surface of the protrusion. At the same time, the flow speed of the molten steel can be reduced by the arrangement of the speed reduction plate, thereby reducing the impact force of the molten steel on the flow stabilizer body, thereby solving the problem in the related art that the flow stabilizer is affected by the impact of molten steel for a long time and affects its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0052] Figure 1 This is a schematic diagram of the structure of the utility model;

[0053] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0054] Figure 3 This is a schematic cross-sectional view of the clamping mechanism of the present invention;

[0055] Figure 4 For this utility model Figure 3 Schematic diagram of the local enlarged structure at A in the middle;

[0056] Figure 5 This is a schematic diagram of the structure of the clamping mechanism of the utility model.

[0057] In the figure: 1. Tundish body; 2. Flow stabilizer body; 3. Water inlet pipe; 4. Water through hole; 5. Water inlet; 6. Protective groove; 7. Bump; 8. Protective plate; 9. Speed reduction plate; 10. Clamping block; 11. Clamping plate; 12. Adjustment through hole; 13. Adjustment block; 14. Adjustment column; 15. Clamping groove; 16. First cavity; 17. Adjustment ring; 18. Externally threaded pipe; 19. Handwheel; 20. Slag discharge trough; 21. Slag discharge pipe. DETAILED DESCRIPTION

[0058] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0059] like Figures 1 to 5 As shown, this embodiment proposes a flow stabilizer for a continuous casting tundish, which is used for the protection of the tundish body 1, including a flow stabilizer body 2, a support port, a water inlet pipe 3, a clamping mechanism, a water through hole 4 and a flow stabilizing mechanism. The flow stabilizer body 2 is fixedly arranged in the tundish body 1, and the flow stabilizer body 2 passes through the inner top wall of the tundish body 1 and extends out of the tundish body 1. The support port is opened on the inner top wall of the flow stabilizer body 2, and the water inlet pipe 3 is penetrated and arranged in the support port. The clamping mechanism is arranged on the side wall of the support port for clamping and fixing the water inlet pipe 3. A plurality of water through holes 4 are obliquely opened on the side wall of the flow stabilizer body 2, and the flow stabilizing mechanism is arranged in the flow stabilizer body 2 for reducing the impact force of the molten steel on the tundish body 1.

[0060] Among them, the flow stabilizing mechanism includes a water inlet 5, a protective groove 6 and a protrusion 7. The water inlet pipe 3 is sealed at one end close to the ladle body 1. A plurality of water inlets 5 are obliquely opened on the side wall of the water inlet pipe 3. The protective groove 6 is arranged in an arc shape. The protective groove 6 is opened on the inner bottom wall of the stabilizer body 2. The protrusion 7 is arranged in a semicircular shape. The protrusion 7 is fixedly set at the bottom of the protective groove 6. It also includes a protective plate 8. The protective plate 8 is arranged in an inclined ring shape. The protective plate 8 is arranged around the water inlet 5. A plurality of connecting rods are fixedly set between the protective plate 8 and the inner bottom wall of the stabilizer body 2.

[0061] Specifically, the molten steel in the water inlet pipe 3 can impact the protective plate 8 through the inclined water inlet 5 during its falling process, and then the molten steel is diverted by the inclined protective plate 8, so that the molten steel is spread flat on the protective plate 8 during its falling process, thereby increasing the falling area of the molten steel, and then the molten steel falling on the protective plate 8 can impact the arc-shaped protrusion 7, so that the impact force can be reduced by the arc surface, thereby effectively avoiding the impact of the molten steel on the flow stabilizer body 2 during its falling process.

[0062] The water inlet pipe 3 further includes a plurality of arc-shaped deceleration plates 9, which are staggeredly arranged within the water inlet pipe 3 and fixedly connected to the inner wall of the water inlet pipe 3. As the molten steel flows within the water inlet pipe 3, the deceleration plates 9 can enhance the flow path of the molten steel, thereby reducing the flow velocity of the molten steel and reducing the impact force of the molten steel on the flow stabilizer body 2.

[0063] Among them, the clamping mechanism includes a clamping groove 15, a clamping block 10, a clamping plate 11 and an angle adjustment mechanism. A plurality of clamping grooves 15 are provided on the side wall of the support port. The clamping block 10 is arranged in the clamping groove 15. Two clamping plates 11 are hingedly provided between each clamping block 10 and the bottom of the clamping groove 15. The angle adjustment mechanism is provided in the clamping groove 15 for adjusting the angle of the clamping plate 11. The angle adjustment mechanism includes an adjustment port, an adjustment through hole 12, an adjustment block 13, an adjustment column 14 and a synchronous movement mechanism. An adjustment port is provided on the clamping plate 11, an adjustment through hole 12 is provided on the side wall of the adjustment port, the adjustment block 13 is provided in the adjustment port, and a plurality of adjustment columns 14 are fixedly provided on the side wall of the adjustment block 13. The adjustment columns 14 correspond one-to-one to the adjustment through holes 12, and the adjustment columns 14 extend into the adjustment through holes 12. The synchronous movement mechanism is provided in the stabilizer body 2 for controlling the synchronous movement of the plurality of adjustment blocks 13 The synchronous movement mechanism includes a first cavity 16, an adjusting ring 17, an adjusting port and a driving mechanism. The first cavity 16 is arranged in a ring shape. The first cavity 16 is opened on one side of the clamping groove 15. The adjusting ring 17 is slidably arranged in the first cavity 16. The inner wall of the adjusting ring 17 is provided with an internal thread. The adjusting port is opened between the clamping groove 15 and the first cavity 16. The adjusting block 13 passes through the adjusting port and is fixedly connected to the adjusting ring 17. The driving mechanism is arranged on the stabilizer body 2 for controlling the movement of the adjusting ring 17. The driving mechanism includes a driving port, an externally threaded tube 18 and a handwheel 19. The driving port is arranged in a ring shape. The driving port is opened on the inner top wall of the first cavity 16. The externally threaded tube 18 is rotatably arranged on the inner bottom wall of the first cavity 16. The externally threaded tube 18 is threadedly matched with the adjusting ring 17. The externally threaded tube 18 passes through the driving port and extends out of the stabilizer body 2. The handwheel 19 is fixedly arranged on the outer wall of the externally threaded tube 18.

[0064] Specifically, after the deceleration plate 9 is damaged by the impact of molten steel, the operator controls the rotation of the handwheel 19, thereby driving the adjustment ring 17, the adjustment block 13 and the adjustment column 14 to move through the threaded cooperation between the external threaded tube 18 and the adjustment ring 17. During the movement of the adjustment column 14, the angle of the clamping plate 11 is adjusted by squeezing the adjustment column 14 and the adjustment through hole 12. At the same time, the angle adjustment of the clamping plate 11 drives the clamping block 10 to move, so that the clamping block 10 contacts the water inlet pipe 3. After replacing the water inlet pipe 3, the above steps can be reversed to complete the fixation of the new water inlet pipe 3.

[0065] Among them, it also includes a slag discharge mechanism, which is arranged on the flow stabilizer body 2 and is used to discharge the steel slag in the flow stabilizer body 2. The slag discharge mechanism includes a slag discharge trough 20 and a slag discharge pipe 21. The slag discharge trough 20 is opened on the ladle body 1, and the slag discharge pipe 21 is connected and arranged on the side wall of the flow stabilizer body 2 near the water inlet pipe 3. The slag discharge pipe 21 is aligned with the slag discharge trough 20.

[0066] Specifically, the steel slag will float up in the flow stabilizer body 2 . As the amount of molten steel in the flow stabilizer body 2 increases, the steel slag will be discharged into the slag discharge trough 20 through the slag discharge pipe 21 , thereby achieving the discharge of the steel slag.

[0067] It should also be noted that the tundish includes a flow stabilizer for a continuous casting tundish according to any of the above solutions.

[0068] In this embodiment, when in use, the operator adds molten steel to the flow stabilizer body 2 through the water inlet pipe 3, and then the molten steel in the flow stabilizer body 2 enters the ladle body 1 through the water through hole 4, wherein the steel slag will float in the flow stabilizer body 2, and as the amount of molten steel in the flow stabilizer body 2 increases, the steel slag will be discharged into the slag discharge trough 20 through the slag discharge pipe 21, thereby realizing the discharge of the steel slag, and the molten steel in the water inlet pipe 3 can impact the protective plate 8 through the inclined water inlet 5 during the falling process, and then the molten steel is diverted by the inclined protective plate 8, so that the molten steel is spread flat on the protective plate 8 during the falling process of the protective plate 8, thereby increasing the falling area of the molten steel, and then the molten steel falling on the protective plate 8 can impact the arc-shaped protrusion 7, so that the impact force can be reduced by the arc surface, thereby effectively avoiding the molten steel from falling during the falling process. The impact of the flow stabilizer body 2, while the molten steel flows in the water inlet pipe 3, the flow path of the molten steel can be improved by the deceleration plate 9, thereby reducing the flow speed of the molten steel, thereby reducing the impact force of the molten steel on the flow stabilizer body 2. However, after the deceleration plate 9 is damaged by the impact of the molten steel, the operator controls the rotation of the handwheel 19, thereby driving the adjusting ring 17, the adjusting block 13 and the adjusting column 14 to move through the threaded cooperation between the external threaded tube 18 and the adjusting ring 17. In the process of movement of the adjusting column 14, the clamping plate 11 is driven to adjust the angle through the squeezing of the adjusting column 14 and the adjusting through hole 12, and the clamping block 10 is driven to move through the angle adjustment of the clamping plate 11, so that the clamping block 10 contacts the water inlet pipe 3. After replacing the water inlet pipe 3, the above steps can be reversed to complete the fixation of the new water inlet pipe 3.

[0069] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A flow stabilizer for a continuous casting tundish, used for protecting the tundish body (1), characterized in that: include: A flow stabilizer body (2), the flow stabilizer body (2) being fixedly arranged in the tundish body (1), the flow stabilizer body (2) penetrating the inner top wall of the tundish body (1) and extending out of the tundish body (1); A support opening, the support opening being provided on the inner top wall of the flow stabilizer body (2); A water inlet pipe (3), the water inlet pipe (3) being arranged to penetrate the support opening; A clamping mechanism, the clamping mechanism being arranged on the side wall of the support opening and being used to clamp and fix the water inlet pipe (3); Water through holes (4), a plurality of water through holes (4) are obliquely opened on the side wall of the flow stabilizer body (2); A flow stabilizing mechanism is provided in the flow stabilizer body (2) and is used to reduce the impact force of the molten steel on the tundish body (1).

2. A flow stabilizer for a continuous casting tundish according to claim 1, characterized in that: The flow stabilizing mechanism comprises: A water inlet (5), wherein the water inlet pipe (3) is sealed at one end close to the tundish body (1), and a plurality of water inlets (5) are obliquely opened on the side wall of the water inlet pipe (3); A protection groove (6), the protection groove (6) is configured to be arc-shaped, and the protection groove (6) is opened on the inner bottom wall of the flow stabilizer body (2); A convex block (7) is provided in a semicircular shape and is fixedly provided at the bottom of the protective groove (6).

3. A flow stabilizer for a continuous casting tundish according to claim 2, characterized in that: It also includes a protective plate (8), which is arranged in an inclined ring shape and is arranged on the peripheral side of the water inlet (5). A plurality of connecting rods are fixedly arranged between the protective plate (8) and the inner bottom wall of the flow stabilizer body (2).

4. A flow stabilizer for a continuous casting tundish according to claim 3, characterized in that: It also includes a plurality of arc-shaped speed reduction plates (9), wherein the plurality of speed reduction plates (9) are staggeredly arranged in the water inlet pipe (3), and the speed reduction plates (9) are fixedly connected to the inner wall of the water inlet pipe (3).

5. The flow stabilizer for continuous casting tundish according to claim 4, characterized in that: The clamping mechanism comprises: Clamping grooves (15), a plurality of the clamping grooves (15) are provided on the side wall of the support opening; A clamping block (10), the clamping block (10) being arranged in the clamping groove (15); A clamping plate (11), wherein two clamping plates (11) are hingedly provided between each clamping block (10) and the bottom of the clamping groove (15); An angle adjustment mechanism is provided in the clamping groove (15) and is used to adjust the angle of the clamping plate (11).

6. A flow stabilizer for a continuous casting tundish according to claim 5, characterized in that: The angle adjustment mechanism comprises: An adjustment port, the clamping plate (11) is provided with the adjustment port; An adjusting through hole (12), wherein the adjusting through hole (12) is provided on the side wall of the adjusting port; an adjusting block (13), the adjusting block (13) being arranged in the adjusting port; Adjustment columns (14), a plurality of the adjustment columns (14) are fixedly provided on the side wall of the adjustment block (13), the adjustment columns (14) correspond one-to-one to the adjustment through holes (12), and the adjustment columns (14) extend into the adjustment through holes (12); A synchronous movement mechanism is provided in the stabilizer body (2) and is used for controlling the synchronous movement of the plurality of regulating blocks (13).

7. A flow stabilizer for a continuous casting tundish according to claim 6, characterized in that: The synchronous movement mechanism comprises: A first cavity (16), the first cavity (16) is configured in an annular shape, and the first cavity (16) is opened on one side of the clamping groove (15); an adjusting ring (17), the adjusting ring (17) being slidably disposed in the first cavity (16), and an inner wall of the adjusting ring (17) being provided with an internal thread; an adjustment port, the adjustment port being provided between the clamping groove (15) and the first cavity (16); Wherein, the adjustment block (13) passes through the adjustment port and is fixedly connected to the adjustment ring (17); A driving mechanism is provided on the flow stabilizer body (2) and is used to control the movement of the adjustment ring (17).

8. The flow stabilizer for continuous casting tundish according to claim 7, characterized in that: The driving mechanism comprises: A driving port, the driving port being arranged in an annular shape and being opened on the inner top wall of the first cavity (16); An externally threaded tube (18), the externally threaded tube (18) being rotatably disposed on the inner bottom wall of the first cavity (16), the externally threaded tube (18) being threadably engaged with the adjusting ring (17), and the externally threaded tube (18) penetrating the driving port and extending out of the stabilizer body (2); A hand wheel (19), wherein the hand wheel (19) is fixedly arranged on the outer wall of the externally threaded tube (18).

9. The flow stabilizer for continuous casting tundish according to claim 8, characterized in that: It also includes a slag discharge mechanism, which is arranged on the flow stabilizer body (2) and is used to discharge the steel slag in the flow stabilizer body (2). The slag discharge mechanism includes: a slag discharge trough (20), the slag discharge trough (20) being provided on the tundish body (1); a slag discharge pipe (21), the slag discharge pipe (21) being arranged in communication with one end of the side wall of the flow stabilizer body (2) close to the water inlet pipe (3); Wherein, the slag discharge pipe (21) is aligned with the slag discharge trough (20).

10. A tundish, characterized in that: The tundish includes a flow stabilizer for a continuous casting tundish according to any one of claims 1 to 9.

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