Intermediate tank water gap centering measuring device

Abstract

The invention relates to the technical field of continuous casting production, in particular to an intermediate tank water gap centering measuring device which comprises an installation base detachably installed above a crystallizer cover plate. The measuring frame is arranged above the mounting base; and the measuring assembly is provided with standard scale marks and corresponding readings, and is arranged above the measuring frame in a sliding manner. The measuring assembly is pushed to slide above the measuring frame, so that the movable measuring rod can drive the measuring head at the end part of the measuring rod to gradually approach the outer surface of the tundish nozzle until the measuring head is in contact with the outer surface of the tundish nozzle, and the distance from the tundish nozzle to the edge of a copper pipe is represented; whether the tundish nozzle deviates or not can be measured in the pouring process, the deformation condition of the tundish nozzle can be found in time, the tundish can be replaced in time or steel billet quality is tracked and monitored, and safety accidents or quality defects are avoided.

Description

Technical Field

[0001] The present application relates to the technical field of continuous casting production, and in particular to a tundish nozzle centering measurement device. Background Art

[0002] Continuous casting in the steel smelting industry is a process in which molten steel flows from the ladle through a long nozzle into the tundish, and from the tundish into the crystallizer through an immersion casting nozzle and finally solidifies. The tundish or tundish is one of the key equipment of the continuous casting machine. In order to meet the current needs of increasing production and reducing costs, the number of long pours is increasing. However, during the pouring process, since the tundish needs to work in a harsh environment of continuous high temperature and is affected by the static pressure and thermal stress of the molten steel, the bottom of the tundish is prone to deformation and sinking after pouring. As the pouring time of the tundish gradually increases, the deformation of its body becomes more and more serious, which will cause the position of the tundish pouring nozzle to shift and no longer be centered. The molten steel casting stream is misaligned when pouring into the crystallizer, which can easily cause uneven formation of the billet shell in the crystallizer, cracks on the billet surface, steel leakage, etc., which in turn affects the production quality of the billet and even causes production accidents. Therefore, it is necessary to monitor and measure the centering of the tundish nozzle before and after casting in a timely manner on a daily basis to measure whether the tundish has serious deformation, thereby preventing defects in billet quality or steel leakage accidents. At present, the commonly used traditional measurement method for measuring the centering of the tundish nozzle is to use a tape measure or other measuring tool to measure the distance from the nozzle to the edge of the copper tube. There are many measuring tools under cold conditions, but during the continuous casting process, the nozzle is under high temperature for a long time. The commonly used measuring tools are not convenient to use, the measurement data is inaccurate, and it is difficult to effectively detect the centering of the nozzle. Summary of the Invention

[0003] The present application provides a device for measuring the centering of a tundish nozzle, which is used to solve the problem in the prior art that it is difficult to ensure measurement accuracy and cannot effectively detect the centering of the nozzle using traditional measuring tools.

[0004] The present application provides a tundish nozzle centering measurement device, comprising: The mounting base is detachably mounted above the crystallizer cover plate; A measuring frame is provided above the mounting base to support and limit the measuring components used for measurement; The measuring component is provided with standard scale lines and corresponding readings and is slidably arranged above the measuring frame.

[0005] Preferably, the mounting base is in an inverted L-shape as a whole, and comprises: A front positioning plate is located at one end of the mounting base close to the water inlet of the intermediate tank, and the front positioning plate is detachably plugged into the interior of the copper tube of the crystallizer; A transverse support plate is vertically arranged on a side of the front positioning plate away from the water inlet of the intermediate tank, the measuring frame is fixedly arranged on the upper surface of the transverse support plate, and the lower surface of the transverse support plate is also fixedly connected to a bottom support plate for providing support therefor; The limiting fence is located at the tail of the transverse support plate, and the bottom thereof is fixedly connected to the upper surface of the transverse support plate.

[0006] Preferably, the measuring frame includes a bottom fixing block and a limit reading head, wherein the bottom of the bottom fixing block is fixedly connected to the upper surface of the transverse support plate, and the limit reading head is fixedly arranged above the bottom fixing block; A sliding groove is further provided inside the limit reading head, one end of the measuring component is inserted into the sliding groove, and a reading groove is further provided on the upper surface of the limit reading head, and the reading groove extends to the inner surface of the sliding groove.

[0007] Preferably, the measuring component comprises: A sliding measuring rod, the sliding measuring rod being slidably disposed inside the limit reading head through the sliding groove, the standard scale lines and corresponding readings being both disposed on the upper surface of the sliding measuring rod; a measuring head, used to contact the water outlet of the intermediate tank, and fixedly connected to one end of the sliding measuring rod by a bolt; There are two counterweight blocks, which are located at one end of the sliding measuring rod away from the measuring head. The two counterweight blocks are symmetrically arranged on the upper and lower sides of the sliding measuring rod, and a push-pull plate is also provided on the upper surface of one of the counterweight blocks.

[0008] Preferably, the measuring component is a manual measuring component or an automatic measuring component, wherein the manual measuring component is manually driven to measure by a rocker, and the automatic measuring component can be automatically driven and measured by a corresponding driving device and a corresponding sensor.

[0009] Preferably, the manual measurement assembly includes: A worm is rotatably disposed inside the limiting fence, one end of the worm penetrates the outer surface of the limiting fence and is fixedly connected to one end of the rocking wheel; A threaded rod, fixedly disposed below the sliding measuring rod, and fixedly connected to the lower surface of the sliding measuring rod via a corresponding connecting block; A threaded sleeve is rotatably arranged above the worm, and its inner surface is threadedly connected to the outer surface of the threaded rod. The outer surface of the threaded sleeve near one end of the worm is also fixedly connected to a worm wheel, and the outer surface of the worm wheel is meshed with the outer surface of the worm.

[0010] Preferably, the automatic measurement component includes: A drive assembly, wherein the drive assembly is an autonomous telescopic device that can automatically extend and retract, and an output end of the drive assembly is fixedly connected to one end of the push-pull plate; The measuring component is connected to the driving component and can determine whether the water inlet of the intermediate tank is normally aligned according to the change of the force at the driving component and a preset judgment threshold.

[0011] Preferably, the measuring component comprises: A force sensing module is provided between the driving assembly and the push-pull plate, and is used to detect stress changes between the driving assembly and the push-pull plate in real time; A detection and determination module is provided with the preset determination threshold and the corresponding acquisition element. The detection and determination module can determine the stress change sensed at the force sensing module based on the preset determination threshold and the data collected by the corresponding acquisition element, so as to determine the centering condition of the water inlet of the intermediate tank.

[0012] Preferably, the preset determination threshold is a preset displacement determination value, and the acquisition element is a displacement sensor capable of acquiring the displacement distance of the sliding measuring rod.

[0013] Preferably, the preset determination threshold is a preset time determination value, and the acquisition element is a timer capable of acquiring the displacement time of the sliding measuring rod.

[0014] The beneficial effects of this application are as follows: The intermediate tank water outlet centering measuring device of the present application pushes the slidable measuring component to slide above the measuring frame, so that the movable measuring rod slidingly arranged inside the limit reading head can drive the measuring head arranged at its end to gradually approach the outer surface of the intermediate tank water outlet until it contacts the outer surface of the intermediate tank water outlet, thereby characterizing the distance from the intermediate tank water outlet to the edge of the copper tube, and then the intermediate tank water outlet can be measured again during the casting process to see if there is any deviation, and its deformation can be discovered in time, and then the intermediate tank can be replaced in time or the quality of the steel billet can be tracked and monitored to avoid safety accidents or quality defects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 A schematic diagram of the installation position of the tundish nozzle centering measurement device provided in an embodiment of the present application; Figure 2 A schematic diagram of the overall structure of the tundish nozzle centering measurement device provided in an embodiment of the present application; Figure 3 A top view of the tundish nozzle centering measurement device provided in an embodiment of the present application; Figure 4 Schematic diagram of the overall structure of the measurement component in the embodiment of the present application.

[0017] Reference numerals: 1. Mounting base; 11. Front positioning plate; 12. Horizontal support plate; 13. Bottom support plate; 14. Limit bar; 2. Measuring frame; 21. Bottom fixing block; 22. Limit reading head; 23. Reading slot; 3. Measuring assembly; 31. Sliding measuring rod; 32. Measuring head; 33. Counterweight; 34. Push-pull plate; 35. Arc contact plate; 36. Clamping block; 4. Crystallizer cover plate; 5. Tundish water inlet; 6. Crystallizer copper tube. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions of this application in conjunction with the embodiments. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0019] The following combination Figure 1-Figure 4 , describes the intermediate tank water inlet centering measurement device provided in an embodiment of the present application.

[0020] Reference Figure 1 As shown, the tundish nozzle centering measuring device provided in the embodiment of the present application includes a mounting base 1, which is detachably mounted above the crystallizer cover plate 4; The measuring frame 2 is arranged above the mounting base 1 to support and limit the measuring component 3 used for measurement; The measuring component 3 is provided with standard scale lines and corresponding readings and is slidably arranged above the measuring frame 2 .

[0021] By pushing the slidable measuring assembly 3 to slide above the measuring frame 2, the movable measuring rod slidably arranged inside the limit reading head 22 can drive the measuring head 32 arranged at its end to gradually approach the outer surface of the intermediate tank nozzle 5 until it contacts the outer surface of the intermediate tank nozzle 5, thereby characterizing the distance between the intermediate tank nozzle 5 and the edge of the copper pipe, and then the intermediate tank nozzle 5 can be measured again during the casting process to see if there is any deviation, so as to timely discover its deformation, and then timely replace the intermediate tank or track and monitor the quality of the steel billet to avoid safety accidents or quality defects; At the same time, the detachable mounting base 1 allows the tundish to be tested in different directions flexibly without making additional modifications to the original continuous casting facility, and also facilitates the process of disassembly and maintenance thereof in the later stage.

[0022] Please continue reading Figure 2 and Figure 3 ,like Figure 2 and Figure 3 As shown, Figure 2 This is a schematic diagram of the overall structure of the centering measurement device for the tundish nozzle 5 provided in an embodiment of the present application. Figure 3 A top view of the centering measurement device for the tundish nozzle 5 provided in an embodiment of the present application; In some specific embodiments, the mounting base 1 is in an inverted L-shape as a whole, and includes: The front positioning plate 11 is located at one end of the mounting base 1 near the water inlet 5 of the intermediate tank. The front positioning plate 11 is detachably plugged into the interior of the crystallizer copper tube 6 and is closely attached to the inner wall of the copper tube. Corresponding clamping plates can also be provided at the positions where the front positioning plate 11 contacts the inner wall of the copper tube on the other two sides to increase its plug-in firmness. A transverse support plate 12 is vertically arranged on the side of the front positioning plate 11 away from the water inlet 5 of the intermediate tank. The measuring frame 2 is fixedly arranged on the upper surface of the transverse support plate 12. The lower surface of the transverse support plate 12 is also fixedly connected to a bottom support plate 13 for providing support therefor. There are multiple bottom support plates 13, and at least two, to ensure the stability of the transverse support plate 12 so that it can remain horizontal. Multiple bottom support plates 13 are arranged in a linear array on the lower surface of the transverse support plate 12, with their tops fixedly connected to the upper surface of the transverse support plate 12 and their bottoms abutting against the upper surface of the crystallizer cover plate 4 to provide support for the components arranged above the transverse support plate 12; The limit bar 14 is located at the tail of the transverse support plate 12, and its bottom is fixedly connected to the upper surface of the transverse support plate 12. It is used to limit the tail of the measuring component 3 to prevent the tail from tilting, causing errors in the measurement results and affecting the measurement results. The end of the transverse support plate 12 away from the water inlet 5 of the intermediate tank is its tail end.

[0023] In some specific embodiments, the measuring frame 2 includes a bottom fixing block 21 and a limit reading head 22, wherein the bottom of the bottom fixing block 21 is fixedly connected to the upper surface of the transverse support plate 12, and the limit reading head 22 is fixedly arranged above the bottom fixing block 21; A sliding groove is further provided inside the limit reading head 22, and one end of the measuring component 3 is inserted into the sliding groove. A reading groove 23 is further provided on the upper surface of the limit reading head 22, and the reading groove 23 extends to the inner surface of the sliding groove.

[0024] By opening a reading groove 23 on the upper surface of the limit reading head 22 that is connected to the inside of the sliding groove, while ensuring the limiting effect of the limit reading head 22 on the measuring component 3, the operator can observe the scale on the measuring component 3 inserted into the inside of the limit reading head 22 through the reading groove 23, so as to read and measure it at any time.

[0025] Please continue reading Figure 4 ,like Figure 4 As shown, it is a schematic diagram of the overall structure of the measurement component 3 in the embodiment of the present application; In some specific embodiments, the measuring component 3 includes: The sliding measuring rod 31 is slidably disposed inside the limit reading head 22 through a sliding groove, and the standard scale lines and corresponding readings are both provided on the upper surface of the sliding measuring rod 31; The measuring head 32 is used to contact the water inlet 5 of the intermediate tank and is fixedly connected to one end of the sliding measuring rod 31 by a bolt; The measuring head 32 includes an arc-shaped contact plate 35 and a clamping and fixing block 36. The opening curvature of the arc-shaped contact plate 35 matches the actual diameter of the intermediate tank water outlet 5 to be measured. There are two clamping and fixing blocks 36. Corresponding through holes for inserting bolts are opened on the top of the two clamping and fixing blocks 36. The two clamping and fixing blocks 36 are symmetrically arranged on the outer surface of the side where the arc-shaped contact plate 35 is connected to the sliding measuring rod 31. One end of the sliding measuring rod 31 is inserted between the two clamping and fixing blocks 36 and is tightly connected to the two clamping and fixing blocks 36 by corresponding bolts. By adopting a detachable bolt group to connect them, the arc-shaped contact plate 35 used for measurement can be replaced at any time according to actual measurement needs, which is convenient for replacement and maintenance, and enables corresponding measurements to be performed on intermediate tank water outlets 5 of different diameters.

[0026] There are two counterweight blocks 33, which are located at the end of the sliding measuring rod 31 away from the measuring head 32. The two counterweight blocks 33 are symmetrically arranged on the upper and lower sides of the sliding measuring rod 31. A push-pull plate 34 is also provided on the upper surface of one of the counterweight blocks 33. By setting the corresponding counterweight blocks 33 to increase the weight of the tail of the sliding measuring rod 31, the overall force on it is balanced to avoid the head tilting and affecting the final measurement accuracy.

[0027] In some specific embodiments, the measuring component 3 is a manual measuring component 3 or an automatic measuring component 3, wherein the manual measuring component 3 is manually driven to measure by a wheel, and the automatic measuring component 3 can be automatically driven and measured by a corresponding driving device and a corresponding sensor.

[0028] In some specific embodiments, the manual measurement component 3 includes: A worm is rotatably disposed inside the limiting fence 14, with one end of the worm penetrating the outer surface of the limiting fence 14 and then fixedly connected to one end of the rocker; The threaded rod is fixedly disposed below the sliding measuring rod 31 and is fixedly connected to the lower surface of the sliding measuring rod 31 through a corresponding connecting block; The threaded sleeve is rotatably arranged above the worm, and its inner surface is threadedly connected to the outer surface of the threaded rod. The outer surface of the threaded sleeve near one end of the worm is also fixedly connected to a worm wheel, and the outer surface of the worm wheel is meshed with the outer surface of the worm.

[0029] Specifically, the worm is arranged parallel to the limit fence 14 between the two legs connected to the transverse support plate 12, and the axis of the worm wheel extends perpendicular to the moving direction of the sliding measuring rod 31. The worm can rotate under the drive of the rocker wheel; The threaded rod is arranged perpendicular to the worm, and the axis extension direction of the threaded rod is parallel to the moving direction of the sliding measuring rod 31. The inner surface of the threaded sleeve is provided with an internal thread matching the threaded rod. A fixing plate for mounting the threaded sleeve is also provided inside the limit fence 14. The threaded sleeve is rotatably arranged inside the fixing plate. The inner surface of the threaded sleeve is threadedly connected to the outer surface of the threaded rod, so that the threaded rod can be horizontally displaced along its axis under the rotation of the threaded sleeve. A worm gear meshing with the worm is provided on the outer surface of the threaded sleeve near one end of the worm, so that the measuring assembly 3 can be displaced in the horizontal direction under the drive of the rocker. In this mode, its working process is as follows: The worm is driven to rotate by the rocking wheel, thereby driving the worm wheel meshing with it to rotate, and then driving the threaded sleeve whose axial direction is perpendicular to the axial direction of the worm to rotate inside the fixed plate. Under the drive of the thread and the limitation of the threaded sleeve, the threaded rod connected to it is horizontally displaced along its axial direction, thereby driving the sliding measuring rod 31 fixedly connected to the threaded rod to start displacing, and slide inside the limit reading head 22, thereby driving the measuring head 32 set at its end to gradually approach the intermediate tank water outlet 5, until the arc-shaped contact plate 35 contacts the outer surface of the intermediate tank water outlet 5, and then measures it, and by comparing the reading with the reading that should be under normal circumstances, it is possible to determine whether the intermediate tank water outlet 5 has deviation and what kind of deviation has occurred.

[0030] On the other hand, one end of the worm can be directly connected to the output end of the corresponding motor to drive it, or it can be moved by manually pushing the push-pull plate 34. However, in this mode, manual readings are required, so it is generally classified as a manual measurement component 3.

[0031] In some specific embodiments, the automatic measurement component 3 includes: The drive assembly is an autonomous telescopic device that can automatically extend and retract. The output end of the drive assembly is fixedly connected to one end of the push-pull plate 34. Such as an electric push rod, a hydraulic push rod, and a pneumatic push rod, etc., which can drive the sliding measuring rod 31 to move autonomously. The measuring component 3 is connected to the driving component and can determine whether the tundish nozzle 5 is properly aligned based on the change of the force at the driving component and the preset judgment threshold.

[0032] In some specific embodiments, the measuring component 3 includes: The force sensing module is provided between the driving assembly and the push-pull plate 34 and is used to detect the stress changes between the driving assembly and the push-pull plate 34 in real time. The force sensing module is a force sensor that can promptly respond to the stress changes between the driving assembly and the push-pull plate 34; The detection and judgment module is provided with a preset judgment threshold and corresponding acquisition elements. The detection and judgment module can judge the stress change sensed by the force sensing module based on the preset judgment threshold and the data collected by the corresponding acquisition elements to determine the centering condition of the intermediate tank water inlet 5.

[0033] In some specific embodiments, the preset determination threshold is a preset displacement determination value, and the acquisition element is a displacement sensor that can acquire the displacement distance of the sliding measuring rod 31 .

[0034] In some specific embodiments, the preset determination threshold is a preset time determination value, and the acquisition element is a timer capable of acquiring the displacement time of the sliding measuring rod 31; The preset determination threshold is the displacement distance or displacement time that the sliding measuring rod 31 should have when in contact with the outer surface of the tundish nozzle 5 under normal circumstances.

[0035] Specifically, the detection and determination module determines the centering of the tundish nozzle 5 according to the preset determination threshold value based on the following principle: When the force sensing module detects a change in the stress between the drive assembly and the push-pull plate 34, it means that the measuring head 32 has contacted the outer surface of the tundish nozzle 5. At this time, the detection and judgment module will judge the displacement distance or displacement time of the sliding measuring rod 31 detected by the displacement sensor or timer. If the displacement distance or displacement time is less than the corresponding preset judgment threshold, it can be determined that the bottom of the tundish has deformed, which has caused the tundish nozzle 5 to deviate, and the deviation is toward the side of the measuring device. If the displacement distance or displacement time is greater than the corresponding preset judgment threshold, it can be known that the displacement is in a direction away from the measuring device; If the displacement distance or displacement time is consistent with the corresponding preset judgment threshold, it can be known that the bottom of the tundish has not been deformed and the tundish nozzle 5 is in a normal alignment state; At this time, the detachable device can be moved to a direction perpendicular to the current measuring direction to detect whether there is any deviation or deformation in the other two directions of the tundish nozzle 5, or the measuring device set in the other direction can be directly started to detect whether there is any deviation or deformation in the corresponding two directions (when multiple such measuring devices are set); Similarly, another method can be used to determine whether there is a deviation. That is, when the displacement sensor or timer detects that the displacement distance or displacement time of the sliding measuring rod 31 reaches a corresponding preset determination threshold, the detection and determination module will determine the stress change at the force sensing module. If there is still no change, it can be determined that the bottom of the tundish has deformed, which has caused the tundish nozzle 5 to be out of normal alignment and deviate in a direction away from the measuring device. When the displacement sensor or timer detects that the displacement distance or displacement time of the sliding measuring rod 31 has not reached the corresponding preset judgment threshold, and the force sensing module has detected stress changes, it can be known that the bottom of the intermediate tank has been deformed, which in turn causes the intermediate tank water outlet 5 to fail to be properly centered and deviate, and it deviates toward the side close to the measuring device.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0038] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0039] In this application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0040] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A device for measuring the centering of a tundish nozzle, characterized in that: include: The mounting base is detachably mounted above the crystallizer cover plate; A measuring frame is provided above the mounting base to support and limit the measuring components used for measurement; The measuring component is provided with standard scale lines and corresponding readings and is slidably arranged above the measuring frame.

2. The device for measuring the centering of the tundish nozzle according to claim 1, characterized in that: The mounting base is in an inverted L-shape as a whole and comprises: A front positioning plate is located at one end of the mounting base close to the water inlet of the intermediate tank, and the front positioning plate is detachably plugged into the interior of the copper tube of the crystallizer; A transverse support plate is vertically arranged on a side of the front positioning plate away from the water inlet of the intermediate tank, the measuring frame is fixedly arranged on the upper surface of the transverse support plate, and the lower surface of the transverse support plate is also fixedly connected to a bottom support plate providing support therefor; The limiting fence is located at the tail of the transverse support plate, and the bottom thereof is fixedly connected to the upper surface of the transverse support plate.

3. The device for measuring the centering of the tundish nozzle according to claim 2, characterized in that: The measuring frame includes a bottom fixing block and a limit reading head, wherein the bottom of the bottom fixing block is fixedly connected to the upper surface of the transverse support plate, and the limit reading head is fixedly arranged above the bottom fixing block; A sliding groove is also provided inside the limit reading head, and one end of the measuring component is inserted into the sliding groove. A reading groove is also provided on the upper surface of the limit reading head, and the reading groove extends to the inner surface of the sliding groove.

4. The device for measuring the centering of the tundish nozzle according to claim 3, characterized in that: The measurement component includes: A sliding measuring rod, the sliding measuring rod being slidably disposed inside the limit reading head through the sliding groove, the standard scale lines and corresponding readings being both disposed on the upper surface of the sliding measuring rod; a measuring head, used to contact the water outlet of the intermediate tank, and fixedly connected to one end of the sliding measuring rod by a bolt; There are two counterweight blocks, which are located at one end of the sliding measuring rod away from the measuring head. The two counterweight blocks are symmetrically arranged on the upper and lower sides of the sliding measuring rod, and a push-pull plate is also provided on the upper surface of one of the counterweight blocks.

5. The device for measuring the centering of the tundish nozzle according to claim 4, characterized in that: The measuring component is a manual measuring component or an automatic measuring component, wherein the manual measuring component is manually driven to measure by a rocker, and the automatic measuring component can be automatically driven and measured by a corresponding driving device and a corresponding sensor.

6. The device for measuring the centering of the tundish nozzle according to claim 5, characterized in that: The manual measurement assembly includes: A worm is rotatably disposed inside the limiting fence, one end of the worm penetrates the outer surface of the limiting fence and is fixedly connected to one end of the rocking wheel; A threaded rod, fixedly disposed below the sliding measuring rod, and fixedly connected to the lower surface of the sliding measuring rod via a corresponding connecting block; A threaded sleeve is rotatably arranged above the worm, and its inner surface is threadedly connected to the outer surface of the threaded rod. The outer surface of the threaded sleeve near one end of the worm is also fixedly connected to a worm wheel, and the outer surface of the worm wheel is meshed with the outer surface of the worm.

7. The device for measuring the centering of the tundish nozzle according to claim 5, characterized in that: The automatic measurement component includes: A drive assembly, wherein the drive assembly is an autonomous telescopic device that can automatically extend and retract, and an output end of the drive assembly is fixedly connected to one end of the push-pull plate; The measuring component is connected to the driving component and can determine whether the water inlet of the intermediate tank is normally aligned according to the change of the force at the driving component and a preset judgment threshold.

8. The device for measuring the centering of the tundish nozzle according to claim 7, characterized in that: The measurement component includes: A force sensing module is provided between the driving assembly and the push-pull plate, and is used to detect stress changes between the driving assembly and the push-pull plate in real time; A detection and determination module is provided with the preset determination threshold and the corresponding acquisition element. The detection and determination module can determine the stress change sensed at the force sensing module based on the preset determination threshold and the data collected by the corresponding acquisition element, so as to determine the centering condition of the intermediate tank water inlet.

9. The device for measuring the centering of the tundish nozzle according to claim 8, characterized in that: The preset determination threshold is a preset displacement determination value, and the acquisition element is a displacement sensor that can acquire the displacement distance of the sliding measuring rod.

10. The device for measuring the centering of the tundish nozzle according to claim 8, characterized in that: The preset determination threshold is a preset time determination value, and the acquisition element is a timer that can acquire the displacement time of the sliding measuring rod.

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