An immersion nozzle insertion depth measuring device

Abstract

The present invention belongs to the technical field of measuring devices, specifically a device for measuring the insertion depth of an immersion nozzle, comprising a continuous casting pouring platform and a measuring component, the measuring component comprising a long plate simulating an immersion nozzle and a retractable steel ruler, the measuring component measuring the insertion depth of the immersion nozzle by simulating the long plate simulating the immersion nozzle and the retractable steel ruler, the measuring component also comprising a supporting frame, the supporting frame being located above the continuous casting pouring platform, a hydraulic column being fixedly mounted on the bottom of the supporting frame, a tundish being provided on the inner wall of the supporting frame, and a water outlet being provided on the inner wall of the bottom of the tundish. The present application has a simple structure and is easy to operate, and can effectively and quickly measure the insertion depth of the immersion nozzle, ensuring that the insertion depth of the immersion nozzle is within a reasonable range, avoiding the insertion depth being too shallow or too deep, so that the protective slag is drawn into the molten steel during the pouring process, causing excessive foreign matter, and ensuring the production quality of continuous casting.

Description

Technical Field

[0001] The present invention relates to the technical field of measuring devices, in particular to an immersion-type nozzle insertion depth measuring device. Background Art

[0002] Continuous casting, abbreviated as continuous casting, is an efficient and fast metal forming technology that is widely used in modern industrial production, especially in steel production, non-ferrous metal casting, petrochemical industry, aerospace and automobile manufacturing. This technology uses a continuous casting process to continuously pour molten metal into the forming device (crystallizer) to form a casting billet with continuous length and stable quality.

[0003] For example, a device for measuring the insertion depth of an immersion nozzle of a tundish disclosed in announcement number CN213614004U is not only simple in structure, but also capable of automatically measuring the actual insertion depth of the immersion nozzle online, thereby avoiding the influence of the insertion depth or shallowness of the immersion nozzle on the molten steel and ensuring the production quality of continuous casting billets.

[0004] During the continuous casting process, the "three major parts" have a great impact on production safety and product quality. Among them, the normal and standardized use of the submerged nozzle directly affects the product quality. During the continuous casting process, the depth and centering of the submerged nozzle directly affect the quality of the continuous casting billet. However, during daily casting, the insertion depth of the submerged nozzle into the molten steel cannot be observed, resulting in the insertion depth being too shallow or too deep, causing the protective slag to be drawn into the molten steel during the casting process, resulting in excessive foreign matter. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the depth of the submerged nozzle inserted into the molten steel is difficult to measure.

[0006] In order to solve the above technical problems, the present invention provides a device for measuring the insertion depth of an immersion nozzle, including a continuous casting pouring platform and a measuring component, the measuring component including a long plate simulating the immersion nozzle and a retractable steel ruler, the measuring component measures the insertion depth of the immersion nozzle by simulating the long plate and the retractable steel ruler, the measuring component also includes a supporting frame, the supporting frame is located above the continuous casting pouring platform, a hydraulic column is fixedly installed on the bottom of the supporting frame, the inner wall of the supporting frame is provided with a tundish, and the inner wall of the bottom of the tundish is provided with a water outlet.

[0007] In one embodiment of the present invention, the long plate simulating the immersion water outlet is located on one side of the downspout, a clamping seat is fixedly installed on the bottom of the tundish, the retractable steel ruler is located on the inner side of the clamping seat, and a clamping block is symmetrically fixedly installed on the outer wall of the retractable steel ruler, and the outer wall of the clamping block is clamped with the inner wall of the clamping seat.

[0008] In one embodiment of the present invention, the outer wall of the drain outlet is provided with a mounting assembly, and the mounting assembly includes a mounting seat, and a fixed block is symmetrically and slidably installed on the inner wall of the mounting seat, and a plurality of telescopic columns and elastic parts A are fixedly installed between the outer wall of the fixed block and the inner wall of the mounting seat, and the plurality of elastic parts A are respectively sleeved on the outside of the telescopic columns, and the long plate simulating the immersion water outlet is clamped to the inner wall of the mounting seat through the fixed block.

[0009] In one embodiment of the present invention, positioning columns are symmetrically fixedly installed on the inner wall of the mounting seat, and positioning grooves are symmetrically opened on the outer wall of the long plate simulating the immersion water outlet, and the inner wall of the positioning groove is slidably connected to the outer wall of the positioning column.

[0010] In one embodiment of the present invention, a handle is fixedly installed on the outer wall of the long plate simulating the immersion water outlet, a movable plate is slidably installed on the inner wall of the handle, an elastic part B is fixedly installed between the outer wall of the movable plate and the inner wall of the handle, a sliding column is fixedly installed on the inner wall of the handle, the outer wall of the sliding column is slidably connected to the inner wall of the movable plate, and a push plate is symmetrically rotated and installed on the inner wall of the movable plate.

[0011] In one embodiment of the present invention, a roller is rotatably installed on the inner wall of one end of the push plate away from the movable plate, and elastic bands are fixedly installed between the two push plates and the outer wall of the handle. A connecting shaft is slidably installed on the inner wall of the handle, one end of the connecting shaft is fixedly connected to the outer wall of the movable plate, and a button is fixedly installed on the other end of the connecting shaft.

[0012] In one embodiment of the present invention, a crystallizer panel is fixedly installed on the inner wall of the continuous casting pouring platform, a crystallizer copper tube is fixedly installed on the inner wall of the crystallizer panel, one end of the long plate simulating the immersion water nozzle extends to the inner side of the crystallizer copper tube, and one end of the retractable steel ruler is in contact with the top of the crystallizer panel.

[0013] In one embodiment of the present invention, a movable frame is provided above the continuous casting pouring platform, the top of the movable frame is fixedly connected to the bottom of the hydraulic column, a drive box is symmetrically fixedly installed on the bottom of the movable frame, a sliding wheel is installed on the inner wall of the drive box, a guide rail is fixedly installed on the top of the continuous casting pouring platform, and the sliding wheel and the guide rail are rotatably connected.

[0014] In one embodiment of the present invention, a control box is fixedly installed on the top of the mobile frame, a wire is fixedly installed on the inner wall of the control box, a controller is fixedly installed on the control box through the wire, a column is fixedly installed on the top of the mobile frame, a placement plate is fixedly installed on the top of the column, and the controller is clamped on the inner side of the placement plate.

[0015] In one embodiment of the present invention, limiting columns are symmetrically fixedly installed on the top of the carrier, limiting members are symmetrically fixedly installed on the outer wall of the tundish, and the inner wall of the limiting member is slidably connected to the outer wall of the limiting column.

[0016] The above technical solution of the present invention has the following advantages over the prior art:

[0017] The present invention discloses an immersion nozzle insertion depth measuring device, which records the length of the long plate simulating the immersion nozzle as m0 through a measuring component, records the scale value of the retractable steel ruler in contact with the crystallizer panel after adjustment as m1, calculates the height from the full liquid level to the mouth of the crystallizer panel as m2, and calculates the insertion depth d1 = m0-m1-m2 of the long plate simulating the immersion nozzle. The technical solution in the present application has a simple structure and is easy to operate. It can effectively and quickly measure the insertion depth of the immersion nozzle, ensure that the insertion depth of the immersion nozzle is within a reasonable range, avoid the insertion depth being too shallow or too deep, so that the protective slag is drawn into the molten steel during the casting process, causing excessive foreign matter, and ensuring the production quality of continuous casting.

[0018] The device for measuring the insertion depth of an immersion water outlet described in the present invention has an installation component that is set up. When installing the long plate of the simulated immersion water outlet, it is only necessary to press the long plate of the simulated immersion water outlet into the inner side of the mounting seat to complete the fixation of the long plate of the simulated immersion water outlet. At the same time, when disassembling the long plate of the simulated immersion water outlet, it is only necessary to hold the handle and press the button to release the fixation of the long plate of the simulated immersion water outlet, and then pull the handle outward to remove the long plate of the simulated immersion water outlet. When installing and disassembling the long plate of the simulated immersion water outlet, the operation can be completed with one hand, which makes the installation and disassembly work very simple and convenient, and reduces the workload of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the mobile frame of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the tundish of the present invention;

[0023] Figure 4 This is a structural schematic diagram of the retractable steel ruler of the present invention;

[0024] Figure 5It is a structural schematic diagram of the crystallizer panel of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the drain outlet of the present invention;

[0026] Figure 7 is a cross-sectional view of the mounting seat structure of the present invention;

[0027] Figure 8 This is a schematic structural diagram of the long plate portion of the simulated immersion nozzle of the present invention;

[0028] Figure 9 is a cross-sectional view of the handle structure of the present invention;

[0029] Figure 10 It is a structural diagram of the control box of the present invention;

[0030] Explanation of the reference numerals in the accompanying drawings in the specification: 1. continuous casting pouring platform; 2. long plate simulating an immersed nozzle; 3. retractable steel ruler; 4. supporting frame; 5. hydraulic column; 6. tundish; 7. water outlet; 8. snap-fit ​​seat; 9. clamping block; 10. mounting seat; 11. fixing block; 12. telescopic column; 13. elastic part A; 14. positioning column; 15. positioning groove; 16. handle; 17. movable plate; 18. elastic part B; 19. sliding column; 20. push plate; 21. roller; 22. elastic band; 23. connecting shaft; 24. button; 25. crystallizer panel; 26. crystallizer copper tube; 27. movable frame; 28. drive box; 29. ​​sliding wheel; 30. guide rail; 31. control box; 32. wire; 33. controller; 34. column; 35. placement plate; 36. limit column; 37. limit part. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0032] like Figures 1 to 5 As shown, an immersion nozzle insertion depth measuring device of an embodiment of the present invention includes a continuous casting pouring platform 1 and a measuring component, the measuring component includes a long plate 2 simulating the immersion nozzle and a retractable steel ruler 3, the measuring component measures the insertion depth of the immersion nozzle by means of the long plate 2 simulating the immersion nozzle and the retractable steel ruler 3, the measuring component also includes a supporting frame 4, the supporting frame 4 is located above the continuous casting pouring platform 1, a hydraulic column 5 is fixedly installed at the bottom of the supporting frame 4, a tundish 6 is provided on the inner wall of the supporting frame 4, and a water outlet 7 is provided on the inner wall of the bottom of the tundish 6.

[0033] The long plate 2 of the simulated submerged nozzle is used as the basis for calculating the insertion depth of the submerged nozzle, and the length of the long plate 2 of the simulated submerged nozzle is recorded as m0. Then, the height of the tundish 6 is adjusted to the pouring height, and the length of the retractable steel ruler 3 is adjusted to make it contact with the crystallizer panel 25. The scale value of the retractable steel ruler 3 at this time is recorded as m1. According to the position of the full liquid level of the molten steel, the height from the full liquid level to the mouth of the crystallizer panel 25 is calculated to be m2. The insertion depth d1 of the long plate 2 of the simulated submerged nozzle can be calculated as m0-m1-m2. The structure of the present invention is simple and easy to operate. The technical solution of the present invention can effectively measure the insertion depth of the submerged nozzle, avoiding the insertion depth being too shallow during continuous casting and pouring. Or it is too deep, so that the protective slag is drawn into the molten steel during the pouring process, causing excessive foreign matter. The tundish 6 is installed through the supporting frame 4. The tundish 6 serves as a temporary storage container for molten steel. When multiple furnaces are continuously cast, it can store a certain amount of molten steel. The molten steel is effectively diverted through the tundish 6 to ensure that the molten steel can be evenly and stably distributed to each crystallizer, thereby improving the efficiency and stability of continuous casting production. The height of the supporting frame 4 can be adjusted by the extension and contraction of the hydraulic column 5, thereby realizing the adjustment of the height of the tundish 6. The depth of the immersion nozzle insertion is changed by adjusting the height of the tundish 6. The downspout 7 is used to install the immersion nozzle. The long plate 2 simulating the immersion nozzle is made of high-temperature resistant material and can withstand high-temperature environment.

[0034] like Figures 1 to 4 As shown, the long plate 2 simulating the immersion water outlet is located on one side of the downspout 7, a clamping seat 8 is fixedly installed on the bottom of the tundish 6, the retractable steel ruler 3 is located on the inner side of the clamping seat 8, and the outer wall of the retractable steel ruler 3 is symmetrically fixed with a clamping block 9, and the outer wall of the clamping block 9 is clamped with the inner wall of the clamping seat 8; the long plate 2 simulating the immersion water outlet is installed on one side of the downspout 7, when the tundish 6 descends, the long plate 2 simulating the immersion water outlet can extend into the inner side of the crystallizer copper tube 26, thereby providing conditions for measuring the insertion depth of the immersion water outlet, and the retractable steel ruler 3 is installed on the inner side of the clamping seat 8 through the clamping block 9, so that the retractable steel ruler 3 is detachable, which increases the convenience of using the device.

[0035] like Figures 3 to 7As shown, the outer wall of the drain 7 is provided with a mounting assembly, which includes a mounting seat 10, and a fixing block 11 is symmetrically slidably mounted on the inner wall of the mounting seat 10. Several telescopic columns 12 and elastic members A13 are fixedly mounted between the outer wall of the fixing block 11 and the inner wall of the mounting seat 10. Several elastic members A13 are respectively sleeved on the outer side of the telescopic columns 12, and the long plate 2 simulating the immersion water outlet is clamped to the inner wall of the mounting seat 10 through the fixing block 11; the long plate 2 simulating the immersion water outlet is detachable. When the long plate 2 of the simulating immersion water outlet is installed, the long plate 2 simulating the immersion water outlet is detachable. The long board 2 is pressed to the inner side of the mounting seat 10. When the long board 2 of the simulated immersion water outlet is pressed, the long board 2 of the simulated immersion water outlet will squeeze the fixing block 11 to make it enter the interior of the mounting seat 10. When the long board 2 of the simulated immersion water outlet enters the innermost side of the mounting seat 10, the fixing block 11 will be reset and extended from the inner side of the mounting seat 10 under the action of the reverse elastic force of the elastic part A13. After the fixing block 11 is reset, the long board 2 of the simulated immersion water outlet will be limited to complete the fixation. The installation of the long board 2 of the simulated immersion water outlet is very convenient, and the staff can complete the installation with one hand.

[0036] like Figures 6 to 8 As shown, the inner wall of the mounting seat 10 is symmetrically fixed with positioning columns 14, and the outer wall of the long board 2 simulating the immersion water outlet is symmetrically provided with positioning grooves 15, and the inner wall of the positioning grooves 15 is slidingly connected to the outer wall of the positioning columns 14; when the long board 2 simulating the immersion water outlet is installed, the positioning grooves 15 are aligned with the positioning columns 14, and when the long board 2 simulating the immersion water outlet moves toward the inside of the mounting seat 10, the long board 2 simulating the immersion water outlet moves along the positioning columns 14 through the positioning grooves 15 to achieve a quick positioning effect, and at the same time, the long board 2 of the simulated immersion water outlet can be limited by the cooperation of the positioning grooves 15 and the positioning columns 14, thereby increasing the stability of the long board 2 of the simulated immersion water outlet.

[0037] like Figures 6 to 9As shown, a handle 16 is fixedly mounted on the outer wall of the long board 2 simulating an immersed water outlet, a movable plate 17 is slidably mounted on the inner wall of the handle 16, an elastic member B18 is fixedly mounted between the outer wall of the movable plate 17 and the inner wall of the handle 16, a sliding column 19 is fixedly mounted on the inner wall of the handle 16, the outer wall of the sliding column 19 is slidably connected to the inner wall of the movable plate 17, a push plate 20 is symmetrically mounted on the inner wall of the movable plate 17, a roller 21 is rotatably mounted on the inner wall of the push plate 20 away from the end of the push plate 20 that is rotatably mounted, an elastic band 22 is fixedly mounted between the two push plates 20 and the outer wall of the handle 16, a connecting shaft 23 is slidably mounted on the inner wall of the handle 16, one end of the connecting shaft 23 is fixedly connected to the outer wall of the movable plate 17, and a button 24 is fixedly mounted on the other end of the connecting shaft 23; When it is necessary to disassemble the long board 2 of the simulated immersion water outlet, hold the handle 16 with your hand and press the button 24 with your thumb. The button 24 drives the movable plate 17 to move by squeezing the connecting shaft 23. The movable plate 17 drives the push plate 20 to move along the sliding column 19. When the push plate 20 moves, the angle will change and it will extend to both sides. When the push plate 20 extends to both sides, it will squeeze the fixed block 11 through the roller 21. After being squeezed, the fixed block 11 will enter the inner side of the mounting seat 10 and will no longer limit the long board 2 of the simulated immersion water outlet. At this time, the long board 2 of the simulated immersion water outlet can be removed by pulling the handle 16 outward. In this process, the staff can complete the disassembly work with one hand. The operation is very simple, and the effect of easy disassembly is achieved.

[0038] like Figures 1 to 5 As shown, a crystallizer panel 25 is fixedly installed on the inner wall of the continuous casting pouring platform 1, and a crystallizer copper tube 26 is fixedly installed on the inner wall of the crystallizer panel 25. One end of the long plate 2 simulating the immersion nozzle extends to the inner side of the crystallizer copper tube 26, and one end of the retractable steel ruler 3 is in contact with the top of the crystallizer panel 25; the crystallizer panel 25 and the crystallizer copper tube 26 are used together to form a space for molten steel to solidify and form. The crystallizer panel 25 is in direct contact with the molten steel, and the molten steel is gradually solidified into a billet shell through the cooling effect, and maintains a certain shape and size. The molten steel is directly cast in the crystallizer copper tube 26, and is continuously cooled and formed inside the billet to pull out the billet. The long plate 2 simulating the immersion nozzle is extended into the inner side of the crystallizer copper tube 26, and the retractable steel ruler 3 is adjusted to fit the top of the crystallizer panel 25, providing conditions for measurement.

[0039] like Figures 1 to 2As shown, a mobile frame 27 is provided above the continuous casting pouring platform 1, and the top of the mobile frame 27 is fixedly connected to the bottom of the hydraulic column 5, and a driving box 28 is symmetrically fixedly installed on the bottom of the mobile frame 27. The inner wall of the driving box 28 is installed with a sliding wheel 29, and a guide rail 30 is fixedly installed on the top of the continuous casting pouring platform 1, and the sliding wheel 29 is rotatably connected to the guide rail 30; the hydraulic column 5 is connected to the mobile frame 27, and the mobile frame 27 provides a fulcrum for the hydraulic column 5 so that the hydraulic column 5 can adjust the height of the tundish 6, and a driving box 28 and a sliding wheel 29 are installed at the bottom of the mobile frame 27. The driving box 28 can provide power to the sliding wheel 29, so that the sliding wheel 29 rotates to drive the mobile frame 27 to move, thereby realizing the transportation of the tundish 6, and a stable running path is provided for the sliding wheel 29 through the guide rail 30. Through mutual constraint, it is ensured that the sliding wheel 29 can move according to the predetermined trajectory, preventing the sliding wheel 29 from offsetting or losing control during the movement.

[0040] like Figure 10 As shown, a control box 31 is fixedly installed on the top of the mobile frame 27, a wire 32 is fixedly installed on the inner wall of the control box 31, a controller 33 is fixedly installed on the control box 31 through the wire 32, a column 34 is fixedly installed on the top of the mobile frame 27, a placement plate 35 is fixedly installed on the top of the column 34, and the controller 33 is snapped onto the inner side of the placement plate 35; a work instruction can be issued to the control box 31 through the controller 33, the controller 33 transmits the signal to the control box 31, so that the control box 31 performs corresponding work, and the control box 31 controls the mobile frame 27 to perform corresponding movement, and the placement plate 35 is used to place the controller 33, thereby increasing convenience during use.

[0041] like Figures 1 to 3 As shown, limiting columns 36 are symmetrically fixedly installed on the top of the supporting frame 4, and limiting members 37 are symmetrically fixedly installed on the outer wall of the tundish 6, and the inner wall of the limiting member 37 is slidably connected to the outer wall of the limiting column 36; through the cooperation of the limiting column 36 and the limiting member 37, the tundish 6 is limited, so that the tundish 6 can remain stable when it is hoisted to the inner side of the supporting frame 4, preventing shaking when the tundish 6 is moved.

[0042] Working principle: When performing the measurement work, before the continuous casting simulation starts, the tundish 6 is hoisted onto the supporting frame 4, the movable frame 27 is opened to the top of the crystallizer panel 25 through the sliding wheel 29, and the retractable steel ruler 3 is installed to the bottom of the tundish 6. At the same time, the long plate 2 simulating the immersion water nozzle (the length is recorded as m0) is installed on the water outlet 7 directly above the center of the crystallizer copper tube 26 (there is a water outlet 7 directly above each crystallizer copper tube 26 for installing the immersion water nozzle). After the above installation is completed, the height of the tundish 6 is adjusted to the pouring height. At this time, the retractable steel ruler 3 is adjusted to contact with the crystallizer panel 25, and the scale value of the retractable steel ruler 3 is recorded as m1. According to the position of the full liquid level of the molten steel, the height from the full liquid level to the mouth of the crystallizer panel 25 is calculated to be m2. The insertion depth d1=m0-m1-m2 of the long plate 2 simulating the immersion water nozzle can be calculated.

[0043] If the calculated d1 value is between 9-11 cm, it means that the insertion depth of the submerged nozzle meets the requirements.

[0044] If the calculated d1 value is less than 9 cm, it means that the insertion depth of the submerged nozzle is insufficient, and the height of the tundish 6 needs to be further lowered, and the value of m1 needs to be reduced so that the d1 value reaches 9-11 cm.

[0045] If the calculated d1 value is greater than 11 cm, it means that the submerged nozzle is inserted too deep, and the height of the tundish 6 needs to be further increased, and the value of m1 needs to be increased so that the d1 value reaches 9-11 cm.

[0046] After the above operations are completed, record the value of m1 when the d1 value is between 9 and 11 cm, which will be used as the height setting value of the tundish 6 during the actual continuous casting process.

[0047] Since the height m2 from the full liquid level to the mouth of the crystallizer panel 25 is affected by the crystallizer full liquid level setting value, if the crystallizer full liquid position changes, the operation process is similar to the above operation to adjust m2 to ensure that the immersion nozzle insertion depth is 9-11 cm.

[0048] When installing the long board 2 of the simulated immersion water outlet, hold the handle 16 with your hand to pick up the long board 2 of the simulated immersion water outlet, move the long board 2 of the simulated immersion water outlet close to the mounting seat 10 to align the positioning groove 15 and the positioning column 14, and then press the long board 2 of the simulated immersion water outlet to the inner side of the mounting seat 10. When the long board 2 of the simulated immersion water outlet moves toward the inner side of the mounting seat 10, it will squeeze the fixing block 11 to make it enter the inner side of the mounting seat 10. When the long board 2 of the simulated immersion water outlet completely enters the mounting seat 10, the fixing block 11 is reset under the action of the elastic part A13 to clamp the long board 2 of the simulated immersion water outlet, thereby fixing the long board 2 of the simulated immersion water outlet.

[0049] When it is necessary to disassemble the long board 2 of the simulated immersion water outlet, hold the handle 16 with your hand and press the button 24 with your thumb. The button 24 drives the movable plate 17 to move through the connecting shaft 23. When the movable plate 17 moves, it squeezes the push plate 20 to change its angle so that it extends to both sides. When the push plate 20 extends to both sides, it squeezes the fixed block 11 through the roller 21. After being squeezed, the fixed block 11 enters the inner side of the mounting seat 10, thereby releasing the limit on the long board 2 of the simulated immersion water outlet. Finally, pull the handle 16 outward to remove the long board 2 of the simulated immersion water outlet.

[0050] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An immersion nozzle insertion depth measuring device, characterized by: The invention comprises a continuous casting pouring platform (1) and a measuring assembly, wherein the measuring assembly comprises a long plate (2) simulating an immersion nozzle and a retractable steel ruler (3), wherein the measuring assembly measures the insertion depth of the immersion nozzle by means of the long plate (2) simulating the immersion nozzle and the retractable steel ruler (3), and wherein the measuring assembly further comprises a carrier (4), wherein the carrier (4) is located above the continuous casting pouring platform (1), a hydraulic column (5) is fixedly mounted on the bottom of the carrier (4), a tundish (6) is provided on the inner wall of the carrier (4), and a water outlet (7) is provided on the inner wall of the bottom of the tundish (6); The outer wall of the water outlet (7) is provided with a mounting assembly, the mounting assembly comprising a mounting seat (10), a fixed block (11) being symmetrically slidably mounted on the inner wall of the mounting seat (10), a plurality of telescopic columns (12) and elastic members A (13) being fixedly mounted between the outer wall of the fixed block (11) and the inner wall of the mounting seat (10), the plurality of elastic members A (13) being respectively sleeved on the outer sides of the telescopic columns (12), and the long plate (2) simulating the immersion water outlet being clamped to the inner wall of the mounting seat (10) via the fixed block (11); A handle (16) is fixedly mounted on the outer wall of the long plate (2) simulating the immersed water outlet, a movable plate (17) is slidably mounted on the inner wall of the handle (16), an elastic member B (18) is fixedly mounted between the outer wall of the movable plate (17) and the inner wall of the handle (16), a sliding column (19) is fixedly mounted on the inner wall of the handle (16), the outer wall of the sliding column (19) is slidably connected to the inner wall of the movable plate (17), and a push plate (20) is symmetrically rotated mounted on the inner wall of the movable plate (17); A roller (21) is rotatably mounted on the inner wall of one end of the push plate (20) away from the movable plate (17), an elastic band (22) is fixedly mounted between the two push plates (20) and the outer wall of the handle (16), a connecting shaft (23) is slidably mounted on the inner wall of the handle (16), one end of the connecting shaft (23) is fixedly connected to the outer wall of the movable plate (17), and a button (24) is fixedly mounted on the other end of the connecting shaft (23); A crystallizer panel (25) is fixedly mounted on the inner wall of the continuous casting pouring platform (1), a crystallizer copper tube (26) is fixedly mounted on the inner wall of the crystallizer panel (25), one end of the long plate (2) simulating the immersion nozzle extends to the inner side of the crystallizer copper tube (26), and one end of the retractable steel ruler (3) is in contact with the top of the crystallizer panel (25).

2. The device for measuring the insertion depth of an immersion nozzle according to claim 1, characterized in that: The long plate (2) of the simulated immersion nozzle is located on one side of the lower nozzle (7); a clamping seat (8) is fixedly installed on the bottom of the tundish (6); the retractable steel ruler (3) is located on the inner side of the clamping seat (8); a clamping block (9) is symmetrically fixedly installed on the outer wall of the retractable steel ruler (3); and the outer wall of the clamping block (9) is clamped with the inner wall of the clamping seat (8).

3. The device for measuring the insertion depth of an immersion nozzle according to claim 2, characterized in that: Positioning columns (14) are symmetrically fixedly mounted on the inner wall of the mounting seat (10), and positioning grooves (15) are symmetrically opened on the outer wall of the long plate (2) simulating the immersion nozzle, wherein the inner wall of the positioning groove (15) is slidably connected to the outer wall of the positioning column (14).

4. The device for measuring the insertion depth of an immersion nozzle according to claim 3, characterized in that: A movable frame (27) is provided above the continuous casting pouring platform (1), the top of the movable frame (27) is fixedly connected to the bottom of the hydraulic column (5), a driving box (28) is symmetrically fixedly installed on the bottom of the movable frame (27), a sliding wheel (29) is installed on the inner wall of the driving box (28), and a guide rail (30) is fixedly installed on the top of the continuous casting pouring platform (1), and the sliding wheel (29) and the guide rail (30) are rotatably connected.

5. The device for measuring the insertion depth of an immersion nozzle according to claim 4, characterized in that: A control box (31) is fixedly mounted on the top of the movable frame (27), a wire (32) is fixedly mounted on the inner wall of the control box (31), a controller (33) is fixedly mounted on the control box (31) via the wire (32), a column (34) is fixedly mounted on the top of the movable frame (27), a placement plate (35) is fixedly mounted on the top of the column (34), and the controller (33) is snap-connected to the inner side of the placement plate (35).

6. The device for measuring the insertion depth of an immersion nozzle according to claim 5, characterized in that: A limiting column (36) is symmetrically fixedly installed on the top of the carrier (4), and a limiting member (37) is symmetrically fixedly installed on the outer wall of the tundish (6), and the inner wall of the limiting member (37) is slidably connected to the outer wall of the limiting column (36).

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