Submersed nozzle for continuous casting

Abstract

The utility model discloses a submersed nozzle for continuous casting, which relates to the technical field of casting equipment and comprises a pipe body and a threaded connector mounted on the pipe body, a sealing cover is mounted on the threaded connector, a threaded sleeve is fixedly connected onto the sealing cover, a limit ring is arranged on the sealing cover, a handle is movably connected onto the limit ring, and a threaded rod is arranged in the sealing cover. And a bearing is fixedly mounted in the sealing cover. By installing the threaded disc, the sealing cover and the pressing plate, blockage of the submersed nozzle for continuous casting can be cleaned conveniently, the threaded rod is rotated by rotating the handle, the threaded ring is moved when the threaded rod rotates, then the connecting plate drives the connecting rod to move synchronously, the pressing plate moves downwards in the pipe body, and after the inner wall of the pipe body is cleaned, the inner wall of the pipe body is cleaned. The handle is rotated reversely, the threaded rod is rotated, then the threaded ring is reset, the pressing plate is driven to move upwards in the pipe body, and cleaning is completed sequentially and circularly.

Description

Technical Field

[0001] The utility model relates to the technical field of casting equipment, in particular to an immersion nozzle for continuous casting. Background Art

[0002] Continuous casting is the process of continuously cooling liquid steel with a certain degree of superheat into a solid ingot with a certain shape through a water-cooled crystallizer. In this process, the submerged nozzle, as one of the important parts of the continuous casting machine, plays a key role. The submerged nozzle is an important connecting device used for the molten steel from the tundish to the crystallizer during the pouring process of the continuous casting machine. Its main function is to inject liquid steel into the crystallizer on the one hand, and to prevent oxidation of the steel industry on the other hand. As a functional refractory part, the submerged nozzle must have good penetration performance and sealing performance;

[0003] Chinese patent CN212526044U discloses an immersion nozzle for continuous casting, which has uniform flow diversion effect and can ensure that the molten steel will not cause liquid level fluctuation and slag entanglement when entering the crystallizer; however, the immersion nozzle for continuous casting in the above-mentioned public document mainly considers the uniform flow diversion effect and the problem of slag entanglement, and does not consider that the immersion nozzle for continuous casting is prone to blockage after long-term use, resulting in insufficient flow diversion and easy loosening and falling off; therefore, it is necessary to develop an immersion nozzle for continuous casting, which can clean the blockage and ensure safety. Utility Model Content

[0004] The purpose of the utility model is to solve the problems raised in the above background technology, and then proposes an immersed nozzle for continuous casting.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A submerged water nozzle for continuous casting comprises a pipe body and a threaded interface installed on the pipe body, a sealing cover is installed on the threaded interface, a threaded sleeve is fixedly connected to the sealing cover, and the threaded sleeve is threadedly connected to the threaded interface; a limiting ring is provided on the sealing cover, a handle is movably connected to the limiting ring, a threaded rod is provided in the sealing cover, and the top end of the threaded rod is fixedly connected to the handle, a bearing is fixedly installed inside the sealing cover, and one end of the threaded rod is fixedly connected to the inner ring of the bearing; a threaded ring is threadedly connected to the threaded rod, two groups of connecting rods are passed through the sealing cover, a connecting plate is fixedly provided on the top end of the connecting rod, and the connecting plate is fixedly connected to the outer wall of the threaded ring, and a pressure plate is fixedly installed at the bottom of the connecting rod.

[0007] Furthermore, a sleeve is installed corresponding to the outer side of the tube body, a groove is provided in the sleeve, a support rod is installed in the groove, a roller is installed on the support rod, a slideway corresponding to the roller is provided on the tube body, and the roller is limited in the slideway, and a cleaning plate is installed in the sleeve to facilitate the removal of adsorbed substances on the outer wall of the tube body, thereby improving the cleaning efficiency, extending its service life, and preventing it from being eroded by external adsorbed substances.

[0008] Furthermore, the cleaning plate is an arc-shaped structure to improve the fit with the sleeve and improve the cleaning effect.

[0009] Furthermore, the inner diameter of the sleeve is larger than the outer diameter of the tube body, and the cleaning plate is in contact with the tube body.

[0010] Furthermore, an expansion port is installed at the bottom of the tube body to prevent the high-temperature mixture from naturally falling and splashing around.

[0011] Furthermore, the height of the expansion port is 250 mm.

[0012] Furthermore, the sealing cover is provided with a through hole corresponding to the connecting rod, and the connecting rod is inserted into the through hole to facilitate the movement of the connecting rod.

[0013] Furthermore, the outer diameter of the pressure plate is matched with the inner diameter of the pipe body to improve the efficiency of clearing blockages in the pipe body.

[0014] Furthermore, the pressing plate is made of high temperature resistant material to increase its service life.

[0015] Furthermore, the connecting rod and the pressing plate form a vertical angle to ensure the stability of the pressing plate's up and down movement.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model is convenient for cleaning the blockage of the immersion nozzle for continuous casting by installing a threaded disk, a sealing cover and a pressure plate. After the sealing cover is installed on the threaded interface by rotating the threaded sleeve, the handle is turned to rotate the threaded rod. When the threaded rod rotates, the position of the threaded ring will move, and then the connecting rod will be driven to move synchronously through the connecting plate, so that the pressure plate will move downward in the pipe body. After the inner wall of the pipe body is cleaned, the handle is turned in the opposite direction to rotate the threaded rod, and then the threaded ring is reset, which will drive the pressure plate to move upward in the pipe body, and the cleaning is completed in a cycle in sequence. Not only is the structure simple, but it can also prevent the immersion nozzle for continuous casting from being blocked in the pipe body, thereby increasing the service life of the immersion nozzle for continuous casting.

[0018] 2. The utility model is convenient for protecting the devices around the immersed water nozzle for continuous casting by installing a sleeve, a roller and a buffer plate. After the pipe body is fixed, the sleeve is adjusted according to the height of the contact between the pipe body and the external device, and the sleeve is pushed to make the roller move up and down along the slideway. When the sleeve is moved, the cleaning plate will be driven to move synchronously. When the cleaning plate moves, the adsorbed matter on the outer wall of the pipe body can be cleared, thereby achieving the purpose of facilitating the removal of the adsorbed matter on the outer wall of the pipe body, improving the cleaning efficiency, extending its service life, and avoiding erosion by external adsorbed matter. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the tube body;

[0021] Figure 3 It is a structural schematic diagram of the connecting rod and the pressure plate;

[0022] Figure 4 is a schematic diagram of the structure of the sealing cover;

[0023] Figure 5 is a schematic diagram of the structure of the sleeve;

[0024] In the figure: 1. tube body; 2. expansion port; 3. threaded interface; 4. threaded sleeve; 5. slideway; 6. handle; 7. sealing cover; 8. connecting rod; 9. pressure plate; 10. limit ring; 11. threaded ring; 12. sleeve; 13. groove; 14. support rod; 15. roller; 16. cleaning plate; 17. through hole; 18. threaded rod; 19. bearing; 20. connecting plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. The utility model is further described in combination with the drawings and embodiments:

[0026] Refer to the attached Figure 1 -Attached Figure 5As shown, an immersed water nozzle for continuous casting includes a pipe body 1 and a threaded interface 3 installed on the pipe body 1, a sealing cover 7 is installed on the threaded interface 3, a threaded sleeve 4 is fixedly connected to the sealing cover 7, and the threaded sleeve 4 is threadedly connected to the threaded interface 3, a limiting ring 10 is provided on the sealing cover 7, and the limiting ring 10 is movably connected to a handle 6, a threaded rod 18 is arranged in the sealing cover 7, and the top of the threaded rod 18 is fixedly connected to the handle 6, a bearing 19 is fixedly installed inside the sealing cover 7, and one end of the threaded rod 18 is fixedly connected to the inner ring of the bearing 19, a threaded ring 11 is threadedly connected to the threaded rod 18, two groups of connecting rods 8 are passed through the sealing cover 7, a connecting plate 20 is fixedly arranged on the top of the connecting rod 8, and the connecting plate 20 is fixedly connected to the outer wall of the threaded ring 11, and a pressure plate 9 is fixedly installed at the bottom of the connecting rod 8.

[0027] During the implementation of the above scheme, when it is necessary to clean the tube body 1, first, the sealing cover 7 is installed on the threaded interface 3 by rotating the threaded sleeve 4, and then the handle 6 is rotated to rotate the threaded rod 18. When the threaded rod 18 rotates, the position of the threaded ring 11 will move, and then the connecting plate 20 will drive the connecting rod 8 to move synchronously, so that the pressure plate 9 moves downward in the tube body 1. After the inner wall of the tube body 1 is cleaned, the handle 6 is rotated in the opposite direction to rotate the threaded rod 18, and then the threaded ring 11 is reset, which will drive the pressure plate 9 to move upward in the tube body 1. The cleaning is completed in a cycle. When cleaning is not needed, the handle 6 and the sealing cover 7 can be disassembled separately for easy storage and transportation.

[0028] Among them, a sleeve 12 is installed corresponding to the outer side of the tube body 1, a groove 13 is provided in the sleeve 12, a support rod 14 is installed in the groove 13, a roller 15 is installed on the support rod 14, a slideway 5 corresponding to the roller 15 is provided on the tube body 1, and the roller 15 is limited in the slideway 5, a cleaning plate 16 is installed in the sleeve 12, the inner diameter of the sleeve 12 is larger than the outer diameter of the tube body 1, and the cleaning plate 16 is in contact with the tube body 1.

[0029] During the implementation of the above scheme, the cleaning plate 16 is an arc-shaped structure. After the tube body 1 is fixed, the sleeve 12 is adjusted according to the height of the contact between the tube body 1 and the external device, and the sleeve 12 is pushed to make the roller 15 move up and down along the slide 5. When the sleeve 12 is moved, the cleaning plate 16 will be driven to move synchronously. When the cleaning plate 16 moves, the adsorbent on the outer wall of the tube body 1 can be removed, thereby achieving the purpose of facilitating the removal of the adsorbent on the outer wall of the tube body 1, improving the cleaning efficiency, extending its service life, and preventing it from being eroded by external adsorbents.

[0030] The bottom of the tube body 1 is provided with an expansion port 2 , the height of which is 250 mm. The sealing cover 7 is provided with a through hole 17 corresponding to the connecting rod 8 , and the connecting rod 8 is passed through the through hole 17 .

[0031] During the implementation of the above scheme, after the high-temperature mixture is injected into the tube body 1, the expansion port 2 can prevent the high-temperature mixture from naturally falling and splashing around, and the through hole 17 facilitates the movement of the connecting rod 8.

[0032] The outer diameter of the pressing plate 9 is matched with the inner diameter of the tube body 1 , the pressing plate 9 is made of high temperature resistant material, and the connecting rod 8 and the pressing plate 9 form a vertical angle.

[0033] During the implementation of the above scheme, the outer diameter of the pressing plate 9 is adapted to the inner diameter of the pipe body 1 to improve the efficiency of clearing the blockage in the pipe body 1, and the connecting rod 8 and the pressing plate 9 form a vertical angle to ensure the stability of the pressing plate 9 moving up and down.

[0034] In the specific implementation process of the utility model, after the pipe body 1 is fixed, the sleeve 12 is adjusted according to the height of the contact between the pipe body 1 and the external device, and the sleeve 12 is pushed to make the roller 15 move up and down along the slide 5. When the sleeve 12 is moved, the cleaning plate 16 will be driven to move synchronously. When the cleaning plate 16 moves, the adsorbent on the outer wall of the pipe body 1 can be removed, thereby achieving the purpose of facilitating the removal of the adsorbent on the outer wall of the pipe body 1, improving the cleaning efficiency, extending its service life, and preventing it from being eroded by external adsorbents. Then, the high-temperature mixture is injected from the threaded interface 3, and after passing through The pipe body 1 naturally falls from the expansion port 2. When the pipe body 1 needs to be cleaned after long-term use, first rotate the threaded sleeve 4 to install the sealing cover 7 on the threaded interface 3, then rotate the handle 6 to rotate the threaded rod 18. When the threaded rod 18 rotates, the position of the threaded ring 11 will move, and then the connecting plate 20 will drive the connecting rod 8 to move synchronously, so that the pressure plate 9 moves downward in the pipe body 1. After the inner wall of the pipe body 1 is cleaned, the handle 6 is rotated in the opposite direction to rotate the threaded rod 18, so that the threaded ring 11 is reset, which will drive the pressure plate 9 to move upward in the pipe body 1, and the cleaning is completed in sequence.

[0035] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A submerged nozzle for continuous casting, characterized in that: The invention comprises a tube body (1) and a threaded interface (3) installed on the tube body (1); a sealing cover (7) is installed on the threaded interface (3); a threaded sleeve (4) is fixedly connected to the sealing cover (7), and the threaded sleeve (4) is threadedly connected to the threaded interface (3); a limiting ring (10) is provided on the sealing cover (7); a handle (6) is movably connected to the limiting ring (10); a threaded rod (18) is arranged inside the sealing cover (7), and the top end of the threaded rod (18) is fixedly connected to the handle (6); a bearing (19) is fixedly installed inside the sealing cover (7), and one end of the threaded rod (18) is fixedly connected to the inner ring of the bearing (19); a threaded ring (11) is threadedly connected to the threaded rod (18); two groups of connecting rods (8) are inserted into the sealing cover (7), a connecting plate (20) is fixedly arranged on the top end of the connecting rod (8), and the connecting plate (20) is fixedly connected to the outer wall of the threaded ring (11); a pressing plate (9) is fixedly installed at the bottom of the connecting rod (8).

2. The submerged nozzle for continuous casting according to claim 1, characterized in that: A sleeve (12) is correspondingly installed on the outer side of the tube body (1), a groove (13) is provided in the sleeve (12), a support rod (14) is installed in the groove (13), a roller (15) is installed on the support rod (14), a slideway (5) corresponding to the roller (15) is provided on the tube body (1), and the roller (15) is limited in the slideway (5), and a cleaning plate (16) is installed in the sleeve (12).

3. The submerged nozzle for continuous casting according to claim 2, characterized in that: The cleaning plate (16) is an arc-shaped structure.

4. The submerged nozzle for continuous casting according to claim 2, characterized in that: The inner diameter of the sleeve (12) is greater than the outer diameter of the tube body (1), and the cleaning plate (16) is in contact with the tube body (1).

5. The submerged nozzle for continuous casting according to claim 1, characterized in that: The bottom of the tube body (1) is provided with an expansion port (2).

6. The submerged nozzle for continuous casting according to claim 5, characterized in that: The height of the expansion port (2) is 250 mm.

7. The submerged nozzle for continuous casting according to claim 1, characterized in that: The sealing cover (7) is provided with a through hole (17) corresponding to the connecting rod (8), and the connecting rod (8) is inserted into the through hole (17).

8. The submerged nozzle for continuous casting according to claim 1, characterized in that: The outer diameter of the pressing plate (9) is matched with the inner diameter of the pipe body (1).

9. The submerged nozzle for continuous casting according to claim 1, characterized in that: The pressing plate (9) is made of high temperature resistant material.

10. The submerged nozzle for continuous casting according to claim 1, characterized in that: The connecting rod (8) and the pressing plate (9) form a vertical angle.

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