Combined continuous casting long nozzle

Abstract

The utility model discloses a combined continuous casting long nozzle, which relates to the technical field of continuous casting long nozzles, and comprises a first pipe body and a second pipe body, one side of the first pipe body is connected with the second pipe body in a clamping manner, one side of the first pipe body is provided with a clamping groove, the other side of the second pipe body is fixedly connected with a clamping block matched with the clamping groove, and the clamping block is fixedly connected with the first pipe body. And the clamping blocks are clamped in the clamping grooves. By the adoption of the structure, when the first pipe body is disassembled, the base is screwed off, then the rotating disc is screwed, the toothed belt can drive the second rotating shaft and the screw rod to rotate through the first gear and the second gear respectively, the first rotating shaft can enable the tail end of the screw rod to rotate in situ, and the first limiting plate can push or pull the first pipe body to move along with the first rotating shaft; the first pipe body and the second pipe body can be conveniently and secondarily limited and fixed, meanwhile, the first pipe body and the second pipe body can be conveniently disassembled in the later period, and meanwhile a user can conveniently clean residues or impurities on the inner walls of the first pipe body and the second pipe body in the later period.

Description

Technical Field

[0001] The utility model belongs to the technical field of continuous casting long shrouds, in particular to a combined continuous casting long shroud. Background Art

[0002] Also known as the protective sleeve, it is a key component connecting the ladle and the tundish. It is mainly used to isolate the air during the pouring of molten steel to avoid secondary oxidation of the molten steel and the inhalation of nitrogen, while preventing molten steel from splashing and slag rolling. The long nozzle is connected to the bottom of the ladle and is connected to the lower nozzle of the sliding nozzle device, and the lower end extends into the tundish.

[0003] A Chinese patent with publication number "CN214814777U" discloses a highly-used corrosion-resistant continuous casting long shroud, which relates to the technical field of continuous casting long shrouds. In order to solve the problem that the outer wall of the existing continuous casting long shroud lacks protection and is easily in contact with the ground for a long time, resulting in easy corrosion, a pipe body is provided at the lower end of the connecting head, and the pipe body and the connecting head are an integral structure, a first inner edge guard is provided on the outside of the pipe body, a first outer edge guard is provided on the outside of the first inner edge guard, a second inner edge guard is provided below the first inner edge guard, a second outer edge guard is provided on the outside of the second inner edge guard, a composite coating is provided on the inside of the pipe body, and an anti-corrosion coating is provided on the outer wall of the pipe body.

[0004] However, this continuous casting long nozzle still has some shortcomings. After long-term use, some residues or impurities will inevitably remain on the inner wall of the continuous casting long nozzle. Because the pipe body is a whole and does not have the function of disassembly, it is extremely difficult to deal with the residues or impurities on its inner wall. These residues and impurities will inevitably affect the normal use of the pipe body in the later stage. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a combined long nozzle for continuous casting to solve the problems mentioned in the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A combined continuous casting long water nozzle comprises a first tube body and a second tube body, wherein the second tube body is clamped on one side of the first tube body, a clamping groove is provided on one side of the first tube body, a clamping block matching the clamping groove is fixedly connected on the other side of the second tube body, the clamping block is clamped inside the clamping groove, and the second tube body is clamped on one side of the first tube body through the clamping groove and the clamping block, a first limiting plate is fixedly connected on the outer wall of the first tube body, a second limiting plate is fixedly connected on the outer wall of the second tube body, a first rotating shaft is rotatably connected on one side of the first limiting plate, a screw is fixedly connected on one side of the first rotating shaft, a screw hole matching the screw is provided on one side of the second limiting plate, the screw is threadedly connected to the inside of the screw hole, a first gear is fixedly connected on one side of the screw, a second limiting plate is rotatably connected on one side of the second rotating shaft, and a second gear is fixedly connected on one side of the second rotating shaft. A toothed belt is meshed and linked on the outer wall of the first gear and the second gear, and a turntable is fixedly connected to one side of the second gear. The bottom end of the first tube body is threadedly connected to the base, and a through hole is opened on the top of the base, which is fixed by the clamping connection of the first tube body and the second tube body, so that the two can form a whole, so as to facilitate the normal use of the first tube body and the second tube body. When the turntable is turned, the toothed belt will drive the second rotating shaft and the screw to rotate respectively through the first gear and the second gear. The first rotating shaft can make the end of the screw rotate in place, and the first limiting plate will push or pull the first tube body to move accordingly, which is convenient for the secondary limiting and fixing of the first tube body and the second tube body, and is also more conducive to the later disassembly of the first tube body and the second tube body, and is also convenient for the user to clean up the residue or impurities on the inner wall of the first tube body and the second tube body at a later time.

[0008] As a preferred technical solution, a limiting groove is provided on one side of the first tube body, and a sealing ring matching the limiting groove is fixedly connected to the other side of the second tube body. The sealing ring covers the inner side of the limiting groove, and the clamping block is located on the inner side of the sealing ring. By fixing the sealing ring, after the sealing ring is clamped into the limiting groove, the connection point between the first tube body and the second tube body will be completely sealed, thereby effectively improving the sealing of the connection between the two.

[0009] As a preferred technical solution, one side of the first limit plate is fixedly connected to a telescopic rod, one side of the telescopic rod is fixedly connected to the other side of the second limit plate, and the screw is located on the inner side close to the telescopic rod. Through the fixation of the telescopic rod, the telescopic rod can perform secondary limiting and reinforcement on the connection between the first limit plate and the second limit plate without hindering the normal driving of the screw, thereby effectively improving the stability of the position adjustment of the first limit plate and the second limit plate.

[0010] As a preferred technical solution, the inside of the first tube body and the second tube body are coated with a heat-resistant coating with a thickness of one centimeter, and the inner walls of the first tube body and the second tube body are coated with an anti-corrosion coating with a thickness of one centimeter. By applying the heat-resistant coating, the heat resistance of the first tube body and the second tube body can be effectively improved, and the first tube body and the second tube body can be prevented from being damaged by high temperature. By applying the anti-corrosion coating, the corrosion resistance of the first tube body and the second tube body can be effectively improved, thereby effectively increasing the service life of the first tube body and the second tube body.

[0011] As a preferred technical solution, the bottom ends of the first tube body and the second tube body are fixedly connected with a thread block, the top of the base is provided with a thread groove matching the thread block, the thread block is threadedly connected to the inner side of the thread groove, and the base is threadedly connected to the bottom end of the first tube body through the thread groove and the thread block. By fixing the base, the base can effectively improve the stability of the connection between the first tube body and the second tube body, and can avoid the first tube body and the second tube body from breaking. When the first tube body needs to be disassembled, the base can be unscrewed through the thread principle.

[0012] As an optimal technical solution, a shock-absorbing pad is fixedly connected to the bottom end of the threaded block, which covers the bottom end of the threaded block. The bottom end of the shock-absorbing pad is in contact with the inner bottom end of the threaded groove. By fixing the shock-absorbing pad, the seismic resistance of the bottom ends of the first tube body and the second tube body can be effectively improved.

[0013] As a preferred technical solution, a rubber pad is fixedly connected to the top of the base, and the rubber pad covers the top of the base. The position of the top of the rubber pad is in contact with the bottom ends of the first tube body and the second tube body. Through the fixation of the rubber pad, the rubber pad has good anti-slip ability and rubber shock absorption ability, thereby effectively improving the stability of the base position fixation.

[0014] In summary, the utility model mainly has the following beneficial effects:

[0015] First, when in use, the first tube body and the second tube body are clamped and fixed together, so that the two can form a whole, and the base can perform secondary limit fixing on the bottom ends of the two, so as to facilitate the normal use of the first tube body and the second tube body. When disassembling the first tube body, the base is unscrewed, and then the turntable is twisted, and the toothed belt will drive the second rotating shaft and the screw to rotate respectively through the first gear and the second gear, and the first rotating shaft can make the end of the screw rotate in place, and the first limit plate will push or pull the first tube body to move accordingly, which is convenient for the secondary limit fixing of the first tube body and the second tube body, and is also more conducive to the later disassembly of the first tube body and the second tube body, and is also convenient for the user to clean the residues or impurities on the inner wall of the first tube body and the second tube body at a later time;

[0016] Secondly, due to the presence of the sealing ring, after the sealing ring is inserted into the limiting groove, the connection point between the first tube body and the second tube body will be completely sealed, thereby effectively improving the sealing of the connection between the two. Due to the presence of the shock-absorbing pad, the shock-absorbing pad can effectively improve the seismic resistance of the bottom end of the threaded block, thereby effectively improving the shock-absorbing capacity of the bottom ends of the first tube body and the second tube body. The rubber pad has good anti-slip ability and rubber shock-absorbing ability. While improving the stability of the base position fixation, it also secondary improves the shock-absorbing capacity of the bottom ends of the first tube body and the second tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the top structure of the second tube body of the utility model;

[0019] Figure 3 This utility model Figure 2 A schematic diagram of the enlarged structure of part A;

[0020] Figure 4 This is a schematic diagram of the bottom structure of the first tube body of the utility model;

[0021] Figure 5 This utility model Figure 4 A schematic diagram of the enlarged structure of part B;

[0022] Figure 6 It is a schematic diagram of the top structure of the base of the utility model.

[0023] Figure numerals: 1. first tube body, 2. second tube body, 3. heat-resistant coating, 4. anti-corrosion coating, 5. slot, 6. block, 7. limit groove, 8. sealing ring, 9. first limit plate, 10. second limit plate, 11. telescopic rod, 12. first rotating shaft, 13. screw, 14. screw hole, 15. first gear, 16. second rotating shaft, 17. second gear, 18. toothed belt, 19. turntable, 20. base, 21. threaded block, 22. shock-absorbing pad, 23. threaded groove, 24. rubber pad, 25. through hole. DETAILED DESCRIPTION

[0024] refer to Figures 1 to 6A combined continuous casting long nozzle of this embodiment includes a first tube body 1 and a second tube body 2. The second tube body 2 is clamped on one side of the first tube body 1. A clamping groove 5 is provided on one side of the first tube body 1. A clamping block 6 matching the clamping groove 5 is fixedly connected on the other side of the second tube body 2. The clamping block 6 is clamped inside the clamping groove 5. The second tube body 2 is clamped on one side of the first tube body 1 through the clamping groove 5 and the clamping block 6. A first limiting plate 9 is fixedly connected to the outer wall of the first tube body 1, and a second limiting plate 10 is fixedly connected to the outer wall of the second tube body 2. One side of the first limiting plate 9 is rotatably connected to a first rotating shaft 12, one side of the first rotating shaft 12 is fixedly connected to a screw rod 13, one side of the second limiting plate 10 is provided with a screw hole 14 matching the screw rod 13, the screw rod 13 is threadedly connected to the inside of the screw hole 14, one side of the screw rod 13 is fixedly connected to a first gear 15, one side of the second limiting plate 10 is rotatably connected to a second rotating shaft 16, one side of the second rotating shaft 16 is fixedly connected to a second gear 17, and a toothed belt 18 is meshed and linked on the outer walls of the first gear 15 and the second gear 17 A turntable 19 is fixedly connected to one side of the second gear 17, and a base 20 is threadedly connected to the bottom end of the first tube body 1. A through hole 25 is provided at the top of the base 20. When in use, the first tube body 1 and the second tube body 2 are clamped and fixed together, so that the two tube bodies can form a whole. The base 20 can perform secondary limit fixation on the bottom ends of the two, and the through hole 25 can allow the normal circulation of the entire tube body, so as to facilitate the normal use of the first tube body 1 and the second tube body 2. When disassembling the first tube body 1, unscrew the base 20 and then screw the turntable. 19, the toothed belt 18 will drive the second rotating shaft 16 and the screw 13 to rotate through the first gear 15 and the second gear 17 respectively, the first rotating shaft 12 can make the end of the screw 13 rotate in place, and the first limiting plate 9 will push or pull the first tube body 1 to move accordingly, while facilitating the secondary limiting fixation of the first tube body 1 and the second tube body 2, it is also more conducive to the later disassembly of the first tube body 1 and the second tube body 2, and it is also convenient for the user to clean the residues or impurities on the inner walls of the first tube body 1 and the second tube body 2 at a later time.

[0025] refer to Figures 1 to 3 A limiting groove 7 is provided on one side of the first tube body 1, and a sealing ring 8 matching the limiting groove 7 is fixedly connected to the other side of the second tube body 2. The sealing ring 8 covers the inner side of the limiting groove 7, and the clamping block 6 is located on the inner side of the sealing ring 8. Due to the presence of the sealing ring 8, the sealing ring 8 has good sealing performance, so that the connection point between the first tube body 1 and the second tube body 2 can be effectively sealed to prevent the molten iron from flowing out.

[0026] refer to Figure 1A telescopic rod 11 is fixedly connected to one side of the first limiting plate 9, and one side of the telescopic rod 11 is fixedly connected to the other side of the second limiting plate 10. The screw 13 is located on the inner side close to the telescopic rod 11, and the telescopic rod 11 includes a movable rod and a sleeve rod. The movable rod is sleeved on the inner side of the sleeve rod, and the other side of the sleeve rod is fixedly connected to one side of the first limiting plate 9, and one side of the movable rod is fixedly connected to the other side of the second tube. Due to the existence of the telescopic rod 11, the telescopic rod 11 can provide secondary support and limit the connection point between the first limiting plate 9 and the second limiting plate 10 without hindering the normal driving of the screw 13, thereby effectively improving the stability of the splitting of the first tube body 1 and the second tube body 2.

[0027] refer to Figure 1 The interior of the first tube body 1 and the second tube body 2 are coated with a heat-resistant coating 3, and the thickness of the heat-resistant coating 3 is one centimeter. The inner walls of the first tube body 1 and the second tube body 2 are coated with an anti-corrosion coating 4, and the thickness of the anti-corrosion coating 4 is one centimeter. Due to the presence of the heat-resistant coating 3, the heat-resistant coating 3 is a material with excellent high-temperature resistance, which can resist high-temperature oxidation and effectively prevent harmful substances from corroding the substrate, thereby protecting the substrate. This coating can not only be applied to surfaces such as ceramics, metals, and glass, but is also widely used in metallurgy, petroleum, aerospace and other fields, and can withstand temperatures up to 1200 degrees or even higher. Due to the presence of the anti-corrosion coating 4, the anti-corrosion coating 4 is a covering layer applied to the metal surface, which is intended to isolate the metal from the surrounding medium, thereby controlling the corrosion of the pipeline. This coating should not only have good electrical insulation and water-proof properties, but also have strong adhesion to the pipeline surface, be resistant to chemical damage, and have a certain mechanical strength, thereby effectively improving the service life of the first tube body 1 and the second tube body 2.

[0028] refer to Figures 4 to 6 The bottom ends of the first tube body 1 and the second tube body 2 are fixedly connected with a thread block 21, and the top of the base 20 is provided with a thread groove 23 matching the thread block 21. The thread block 21 is threadedly connected to the inner side of the thread groove 23. The base 20 is threadedly connected to the bottom end of the first tube body 1 through the thread groove 23 and the thread block 21. Due to the opening of the thread groove 23, it is convenient for the user to disassemble and assemble the base 20 individually, so that the user can normally disassemble the first tube body 1 and the second tube body 2 later.

[0029] refer to Figure 4 and Figure 6The bottom end of the threaded block 21 is fixedly connected with a shock-absorbing pad 22, which covers the bottom end of the threaded block 21, and the bottom end of the shock-absorbing pad 22 is in contact with the inner bottom end of the threaded groove 23. The top of the base 20 is fixedly connected with a rubber pad 24, which covers the top of the base 20. The top of the rubber pad 24 is in contact with the bottom ends of the first tube body 1 and the second tube body 2. Due to the existence of the shock-absorbing pad 22, the shock-absorbing pad 22 can effectively improve the seismic resistance of the bottom end of the threaded block 21, thereby effectively improving the shock-absorbing ability of the bottom ends of the first tube body 1 and the second tube body 2. The rubber pad 24 has good anti-slip ability and rubber shock-absorbing ability. While improving the stability of the fixed position of the base 20, it also secondary improves the shock-absorbing ability of the bottom ends of the first tube body 1 and the second tube body 2.

[0030] Principle and advantages of use: When in use, the first tube body 1 and the second tube body 2 are clamped and fixed together, so that the two tube bodies can form a whole, and the base 20 can perform secondary limit fixation on the bottom ends of the two tubes, and the through hole 25 can allow normal circulation of the entire tube body, so as to facilitate the normal use of the first tube body 1 and the second tube body 2. When the first tube body 1 is disassembled, the base 20 is unscrewed, and then the turntable 19 is turned, and the toothed belt 18 will drive the second rotating shaft 16 and the screw rod 13 to rotate through the first gear 15 and the second gear 17 respectively, and the first rotating shaft 12 can make the end of the screw rod 13 rotate in place, and the first limit plate 9 will push or pull the first tube body 1 to move. The first tube body 1 and the second tube body 2 are movable, and it is convenient to perform secondary limit fixing on the first tube body 1 and the second tube body 2, and it is also more conducive to the later disassembly of the first tube body 1 and the second tube body 2, and it is convenient for the user to clean the residues or impurities on the inner walls of the first tube body 1 and the second tube body 2 at a later time. Due to the existence of the sealing ring 8, the sealing ring 8 has good sealing performance, so that the connection point between the first tube body 1 and the second tube body 2 can be effectively sealed, and the molten iron can be prevented from flowing out. Due to the existence of the telescopic rod 11, the telescopic rod 11 can not hinder the normal driving of the screw rod 13, and can connect the first limit plate 9 and the second limit plate 10. The joints are provided with secondary support and limitation, so as to effectively improve the stability of the separation of the first tube body 1 and the second tube body 2. Due to the presence of the heat-resistant coating 3, the heat-resistant coating 3 is a material with excellent high-temperature resistance, which can resist high-temperature oxidation and effectively prevent harmful substances from corroding the substrate, thereby protecting the substrate. Due to the presence of the anti-corrosion coating 4, the anti-corrosion coating 4 is a covering layer applied on the metal surface, which is intended to isolate the metal from the surrounding medium, thereby controlling the corrosion of the pipeline. This coating should not only have good electrical insulation and water-proof properties, but also have strong adhesion to the pipeline surface, be resistant to chemical damage, and have a certain mechanical strength. Therefore, the service life of the first tube body 1 and the second tube body 2 is effectively improved. Due to the opening of the thread groove 23, it is convenient for the user to disassemble and assemble the base 20 individually, so that the user can normally disassemble the first tube body 1 and the second tube body 2 later. Due to the existence of the shock-absorbing pad 22, the shock-absorbing pad 22 can effectively improve the shock resistance of the bottom end of the thread block 21, thereby effectively improving the shock-absorbing ability of the bottom end of the first tube body 1 and the second tube body 2. The rubber pad 24 has good anti-slip ability and rubber shock-absorbing ability. While improving the stability of the fixed position of the base 20, it also secondary improves the shock-absorbing ability of the bottom end of the first tube body 1 and the second tube body 2.

Claims

1. A combined continuous casting shroud, comprising a first tube body (1) and a second tube body (2), characterized in that: The first tube body (1) is clamped with the second tube body (2) on one side, a clamping groove (5) is provided on one side of the first tube body (1), a clamping block (6) matching the clamping groove (5) is fixedly connected to the other side of the second tube body (2), the clamping block (6) is clamped inside the clamping groove (5), the second tube body (2) is clamped to one side of the first tube body (1) through the clamping groove (5) and the clamping block (6), a first limiting plate (9) is fixedly connected to the outer wall of the first tube body (1), a second limiting plate (10) is fixedly connected to the outer wall of the second tube body (2), one side of the first limiting plate (9) is rotatably connected to a first rotating shaft (12), one side of the first rotating shaft (12) is fixedly connected to a screw rod (13), A screw hole (14) matching with the screw rod (13) is provided on one side of the second limiting plate (10); the screw rod (13) is threadedly connected to the inside of the screw hole (14); a first gear (15) is fixedly connected to one side of the screw rod (13); a second rotating shaft (16) is rotatably connected to one side of the second limiting plate (10); a second gear (17) is fixedly connected to one side of the second rotating shaft (16); a toothed belt (18) is meshed and linked on the outer walls of the first gear (15) and the second gear (17); a rotating disk (19) is fixedly connected to one side of the second gear (17); a base (20) is threadedly connected to the bottom end of the first tube body (1); a through hole (25) is provided at the top end of the base (20).

2. The combined continuous casting shroud according to claim 1, characterized in that: A limiting groove (7) is provided on one side of the first tube body (1), and a sealing ring (8) matching the limiting groove (7) is fixedly connected to the other side of the second tube body (2), the sealing ring (8) covers the inner side of the limiting groove (7), and the clamping block (6) is located on the inner side of the sealing ring (8).

3. The combined continuous casting shroud according to claim 1, characterized in that: One side of the first limiting plate (9) is fixedly connected to a telescopic rod (11), one side of the telescopic rod (11) is fixedly connected to the other side of the second limiting plate (10), and the screw rod (13) is located close to the inner side of the telescopic rod (11).

4. The combined continuous casting shroud according to claim 1, characterized in that: The interior of the first tube body (1) and the second tube body (2) are coated with a heat-resistant coating (3), the thickness of the heat-resistant coating (3) is one centimeter, and the inner walls of the first tube body (1) and the second tube body (2) are coated with an anti-corrosion coating (4), the thickness of the anti-corrosion coating (4) is one centimeter.

5. The combined continuous casting shroud according to claim 1, characterized in that: The bottom ends of the first tube body (1) and the second tube body (2) are both fixedly connected with a thread block (21); the top end of the base (20) is provided with a thread groove (23) matching the thread block (21); the thread block (21) is threadedly connected to the inner side of the thread groove (23); and the base (20) is threadedly connected to the bottom end of the first tube body (1) via the thread groove (23) and the thread block (21).

6. The combined continuous casting shroud according to claim 5, characterized in that: The bottom end of the threaded block (21) is fixedly connected with a shock absorbing pad (22), the shock absorbing pad (22) covers the bottom end of the threaded block (21), and the bottom end of the shock absorbing pad (22) is in contact with the inner bottom end of the threaded groove (23).

7. The combined continuous casting shroud according to claim 1, characterized in that: The top of the base (20) is fixedly connected to a rubber pad (24), the rubber pad (24) covers the top of the base (20), and the top of the rubber pad (24) is located adjacent to the bottom of the first tube body (1) and the bottom of the second tube body (2).

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