Continuous casting fan-shaped section roll gap adjusting system and control method

Abstract

The invention relates to the technical field of continuous casting, in particular to a continuous casting fan-shaped section roller gap adjusting system and a control method.The continuous casting fan-shaped section roller gap adjusting system comprises a three-section type densely-arranged roller structure, and each section of roller is connected with a main body frame through a roller gap adjusting unit; a pipe conveying structure is further arranged and used for conveying lubricating oil gas, cooling gas, cooling liquid and cooling aerial fog, and various detection devices and processors are arranged. The roller gap control method comprises the steps of collecting the roller temperature, the pulling speed and the abrasion loss in real time, establishing a roller gap compensation amount calculation formula, conducting closed-loop adjustment, detecting surface defects after casting blanks are offline, and updating the calculation formula. The technical effects that the continuous casting fan-shaped section roll gap is accurately adjusted, system operation parameters are monitored in real time, the compensation formula is dynamically updated according to the casting blank condition, and the casting blank quality is improved are achieved.

Description

Technical Field

[0001] This application relates to the technical field of continuous casting, and in particular to a continuous casting sector roll gap adjustment system and control method. Background Technology

[0002] Continuous casting technology occupies a crucial position in the steel production industry. Through continuous casting, molten steel can be rapidly solidified and formed, reducing numerous production steps and significantly improving production efficiency. At the same time, the quality of the continuously cast billet directly affects the quality of subsequent rolled products, playing a key role in improving the quality and performance of steel products and holding an irreplaceable and vital position in the entire steel industry chain.

[0003] The existing methods for adjusting the roll gap in the sector section of slab continuous casting machines have several shortcomings. For example, fixed roll gap or shim adjustment has low precision and cannot compensate for roll wear and thermal expansion in real time, leading to defects such as bulging and cracks in the cast slab. In addition, although some related technologies use hydraulic cylinders and displacement detection devices to control the roll gap, these methods are subject to interference from factors such as hydraulic cylinder hinge clearance and deformation, which limits the accuracy of roll gap control. Summary of the Invention

[0004] To achieve real-time and precise control of the roll gap, this application provides a roll gap adjustment system and control method for the continuous casting sector section.

[0005] In a first aspect, this application provides a continuous casting sector roll gap adjustment system, which adopts the following technical solution: A continuous casting fan-shaped section roll gap adjustment system includes a three-section closely packed roll structure. The three-section closely packed roll structure includes a main frame, a fan-shaped section I, a fan-shaped section II, and a fan-shaped section III. The fan-shaped section I includes a section of double-sided closely packed rolls arranged along a first arc direction. The fan-shaped section II includes a section of double-sided closely packed rolls arranged along the first arc direction. The fan-shaped section III includes a section of lower closely packed rolls arranged along the first arc direction. The fan-shaped sections I, II, and III are continuously arranged along the first arc direction to form an integral fan-shaped structure. Each roll of the double-sided closely packed rolls I, II, and III is connected to the main frame through a roll gap adjustment unit.

[0006] By adopting the above technical solution, the three-section closely spaced roller structure is continuously arranged along the first arc direction to form an overall fan-shaped structure, and each roller is connected to the main frame through the roller gap adjustment unit, which can realize the effective adjustment of the roller gap of the continuous casting fan-shaped section.

[0007] Optionally, the first section of double-sided densely packed rollers includes 14 pairs of Φ170mm rollers, the second section of double-sided densely packed rollers includes 16 pairs of Φ190mm rollers, and the third section of densely packed lower rollers includes 8 Φ240mm lower rollers.

[0008] By adopting the above technical solutions, the combination of rollers of different specifications and sizes can better adapt to the process requirements of different stages in the continuous casting process, and improve the working efficiency of the roller gap adjustment system in the continuous casting sector and the quality of the cast billet.

[0009] Optionally, the roll gap adjustment unit includes a pusher, a mounting base, and a bearing housing. The bearing housing is used to mount the roll, and the mounting base is used to mount the bearing housing. The mounting base is connected to the main frame via the pusher.

[0010] By adopting the above technical solution, the roller can be installed on the bearing seat, the bearing seat can be installed on the mounting base, and the mounting base and the main frame can be connected by the pusher to realize the adjustment of the roller position, thereby adjusting the roller gap.

[0011] Optionally, the mounting base is provided with an Ω-shaped guide groove, and the bearing seat is provided with a guide protrusion that mates with the Ω-shaped guide groove.

[0012] By adopting the above technical solution, the Ω-shaped guide groove at the mounting base and the guide protrusion at the bearing seat cooperate to make the roller detachable, which can promptly disassemble the roller with large wear and replace it with a new roller, thus avoiding affecting the quality of the finished product.

[0013] Optionally, the pushing member is a piezoelectric stack, the extension and retraction direction of the piezoelectric stack is set along the radial direction of the first arc, the stroke of the piezoelectric stack is ±0.20mm, and the maximum thrust of the piezoelectric stack is 800N.

[0014] Optionally, it also includes a piping structure, which includes a lubrication line, a pressurization line, a vapor-phase cooling line, a liquid-phase cooling line, a two-phase cooling line, and a quick-connect female connector. The lubrication line is used to transport lubricating oil, and the pressurization line is used to transport booster gas. The input ends of both the lubrication line and the pressurization line are connected to the quick-connect female connector. The lubrication line has multiple output ends, each equipped with an oil-gas distributor. The pressurization line has multiple oil-side output ends, the number of which is the same as the number of oil-gas distributors. The oil-side output ends of the pressurization line are connected to the vapor inlet of the oil-gas distributor. The lubrication line and the pressurization line are used to transport lubricating oil-gas to the roll gap adjustment unit through the oil-gas distributor. The vapor-phase cooling line is used to transport cooling gas. The input end of the vapor-phase cooling line is connected to the quick-connect female connector. The vapor-phase cooling line has multiple output ends. Each pipeline has an air nozzle at its output end. The gas-phase cooling pipeline is used to supply cooling gas to the three-section densely packed roller structure through the air nozzle. Both the dual-phase cooling pipeline and the liquid-phase cooling pipeline are used to supply cooling water. The input ends of both the dual-phase cooling pipeline and the liquid-phase cooling pipeline are connected to the quick-connect female connector. The liquid-phase cooling pipeline has multiple output ends, each equipped with a nozzle. The liquid-phase cooling pipeline is used to supply coolant to the three-section densely packed roller structure through the nozzle. The dual-phase cooling pipeline has multiple output ends, each equipped with an atomizer. The pressurizing pipeline has multiple liquid-side output ends, the number of which is the same as the number of atomizers. The liquid-side output ends of the pressurizing pipeline are connected to the gas-phase inlet of the atomizer. The dual-phase cooling pipeline and the pressurizing pipeline are used to supply cooling mist to the three-section densely packed roller structure through the atomizer.

[0016] By adopting the above technical solution, pressurized gas delivered by the pressurization pipeline and lubricating oil delivered by the lubrication pipeline are mixed through an oil-gas distributor to form an oil mist, which can effectively lubricate the roll gap adjustment unit, reduce friction between components, reduce equipment energy consumption, and improve equipment operating efficiency and service life. At the same time, three cooling methods are carried out simultaneously: cooling gas delivered by the gas phase cooling pipeline, cooling liquid delivered by the liquid phase cooling pipeline, and cooling mist delivered by the two-phase cooling pipeline in combination with the pressurization pipeline. This can effectively reduce the temperature of the billet at the three-section closely packed roll structure, promote rapid and uniform solidification of the billet, improve the internal structure of the billet, and improve the quality of the billet.

[0017] Optionally, it also includes a displacement detection device, a temperature detection device, a pulling speed detection device, a wear detection device, a sealing detection device, and a processor; the displacement detection device includes multiple displacement sensors for real-time monitoring of the displacement of the pusher; the temperature detection device includes multiple temperature sensors for real-time monitoring of the temperature of each roller in the I-section double-sided densely packed roller, the II-section double-sided densely packed roller, and the III-section lower roller densely packed roller; the pulling speed detection device includes a pulling speed sensor for real-time detection of pulling speed; the wear detection device includes a laser triangulation displacement sensor for detecting wear; the sealing detection device includes a pressure-flow dual sensor located in the lubrication pipeline for real-time detection of sealing status; and the processor is simultaneously connected to the displacement detection device, the temperature detection device, the pulling speed detection device, the wear detection device, the sealing detection device, and the roll gap adjustment unit.

[0018] By adopting the above technical solutions, the displacement detection device can monitor the displacement of the pushing component in real time, the temperature detection device can monitor the temperature of each section of the roller in real time, the tension speed detection device can detect the tension speed in real time, the wear detection device can detect the wear amount, the sealing detection device can detect the sealing status of the lubrication pipeline in real time, and the processor is connected to each detection device and the roll gap adjustment unit. The roll gap adjustment unit can be precisely controlled and adjusted based on the data fed back from each detection device, thereby improving the automation, control accuracy and reliability of the roll gap adjustment system for the continuous casting sector, reducing manual intervention and improving production efficiency and billet quality.

[0019] Secondly, this application provides a method for controlling the roll gap in a continuous casting sector, employing the following technical solution: A method for controlling the roll gap in a continuous casting sector includes the following steps: S1. Real-time acquisition of T, v, and ΔW, where T is the roller temperature, v is the pulling speed, and ΔW is the wear amount; S2. Establish the calculation formula for roll gap compensation ΔG, and calculate the roll gap compensation ΔG; S3. Perform closed-loop adjustment until the roll gap deviation is ≤ ±0.05mm; S4. After the billet is removed from the production line, surface defects are detected, and the calculation formula for the roll gap compensation amount ΔG is updated periodically based on the surface defect detection results.

[0020] By adopting the above technical solution, data such as roller temperature, drawing speed and wear can be obtained in real time, the roller gap compensation amount can be accurately calculated and closed-loop adjustment can be performed to control the roller gap deviation within ±0.05mm. Furthermore, the roller gap compensation calculation formula can be periodically updated based on the surface defect detection results after the billet is removed from the production line, so that the roller gap control method can adapt to different working conditions and effectively improve the quality of the billet.

[0021] Optionally, the formula for calculating the roll gap compensation amount ΔG in S2 is as follows: ΔG=K1·ΔT+K2·Δv+K3·ΔW, ΔT=T0-T, Δv=v-v0, K1+K2+K3=1, Where T0 is the preset temperature and v0 is the preset pulling speed.

[0022] By adopting the above technical solution, the roll gap compensation amount can be accurately calculated based on the preset temperature, preset casting speed, and real-time collected roll temperature, casting speed, and wear amount. This provides a precise basis for adjusting the roll gap in the continuous casting sector, achieving more precise roll gap control and reducing surface defects of the cast billet.

[0023] Optionally, the method for updating the calculation formula of the roll gap compensation amount ΔG in S4 is to adjust K1, K2, and K3 through a weight coefficient change model. The weight coefficient change model is a pre-trained deep learning model, which is pre-trained in the following way: obtaining a surface defect sample set for model training; inputting the training sample set into the preset weight coefficient change model for model training; introducing an excitation when the surface defects decrease; and obtaining the weight coefficient change model.

[0024] By adopting the above technical solution and utilizing a pre-trained deep learning model, namely the weight coefficient change model, the weight coefficients K1, K2 and K3 are periodically changed, which can dynamically and accurately update the calculation formula of the roll gap compensation amount ΔG, improve the accuracy of roll gap control in the continuous casting sector, and thus improve the quality of the cast billet.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The rollers of the three-section closely packed roller structure are all connected to the main frame through the roller gap adjustment unit, which can compensate for roller wear and thermal expansion online in real time, and avoid defects such as bulging and cracks in the cast billet; 3. The pipe conveying structure can deliver lubricating oil and gas to the roll gap adjustment unit, and cooling gas, coolant and cooling mist to the three-section closely packed roll structure, reducing equipment failure and ensuring normal equipment operation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the roller provided in this application embodiment, which is connected to the main frame through the roller gap adjustment unit.

[0027] Figure 2 This is a logic block diagram of the roll gap control method for the continuous casting sector provided in the embodiments of this application.

[0028] Explanation of reference numerals in the attached drawings: 1-Main frame; 2-Pushing component; 3-Mounting base; 301-Ω-type guide groove; 4-Bearing seat; 401-Guide protrusion; 5-Limiting baffle; 6-Guide column; 7-Roller. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0030] This application discloses a system comprising a three-section closely spaced roller structure, a roller gap adjustment unit, a pipe conveying structure, a displacement detection device, a temperature detection device, a casting speed detection device, a wear detection device, a sealing detection device, and a processor. The three-section closely spaced roller structure consists of three fan-shaped sections (Section I, Section II, and Section III) continuously arranged along a first arc direction to form an integral fan-shaped structure. Each section's rollers are connected to the main frame via the roller gap adjustment unit. The pipe conveying structure provides lubrication and cooling to the system. Each detection device monitors the system status in real time and transmits the data to the processor. The processor controls the roller gap adjustment unit based on the data, achieving precise roller gap adjustment, reducing casting defects, and improving equipment stability and service life.

[0031] Specifically, the three-section closely packed roll structure includes a main frame, sector I, sector II, and sector III. The main frame provides support and fixation, and its structural design must withstand the weight of the rolls and the cast billet, as well as various forces during operation. Sector I includes a section of double-sided closely packed rolls arranged along the first arc direction, comprising 14 pairs of Φ170mm rolls. The surfaces of the rolls are finely machined to ensure good contact with the cast billet. Sector II includes a section of double-sided closely packed rolls arranged along the first arc direction, comprising 16 pairs of Φ190mm rolls. Its processing requirements are similar to those of the double-sided closely packed rolls in section I, only the dimensions differ to accommodate the cast billet at different solidification stages. Sector III includes a section of lower rolls arranged along the first arc direction, comprising 8 Φ240mm lower rolls. The larger size of the lower rolls provides better support for the cast billet.

[0032] like Figure 2 As shown, the roll gap adjustment unit includes a pusher, a mounting base, and a bearing housing. The bearing housing is used to mount the roll and contains a high-precision bearing to ensure smooth roll rotation. The mounting base is used to mount the bearing housing and has an Ω-shaped guide groove. The bearing housing has a guide protrusion that mates with the Ω-shaped guide groove. The guide protrusion can slide within the Ω-shaped guide groove and is limited by limit baffles installed on both sides of the mounting base. This fit allows the bearing housing to be detachably mounted on the mounting base, enabling timely removal and replacement of heavily worn rolls with new ones, thus avoiding impact on finished product quality.

[0033] The pusher component employs a piezoelectric stack. The extension / retraction direction of the piezoelectric stack is set radially along the first arc, with a stroke of ±0.20 mm and a maximum thrust of 800 N. The piezoelectric stack features fast response and high precision, enabling precise adjustment of the roll gap according to processor instructions. When the pusher component extends or retracts, it drives the rollers to move via the mounting base and bearing housing, thereby adjusting the roll gap. To guide the mounting base, a guide hole can be provided at the mounting base, and a guide post that mates with the guide hole can be provided at the main frame.

[0034] Specifically, the piping structure includes lubrication lines, pressurization lines, vapor-phase cooling lines, liquid-phase cooling lines, dual-phase cooling lines, and quick-connect female connectors. The lubrication lines transport lubricating oil, and the pressurization lines transport booster gas. Both the lubrication and pressurization lines have their input ends connected to quick-connect female connectors. These connectors facilitate quick connection to external oil, water, and gas sources. The lubrication lines have multiple output ends, each equipped with an oil-gas distributor. The pressurization lines have multiple oil-side output ends, the number of which matches the number of oil-gas distributors. The oil-side output ends of the pressurization lines are connected to the vapor inlet of the oil-gas distributors. In this way, lubricating oil and booster gas mix in the oil-gas distributors to form lubricating oil-gas, which is then transported to the roll gap adjustment unit for lubrication and wear reduction. The vapor-phase cooling lines transport cooling gas; their input ends are connected to the quick-connect female connectors, and their output ends are equipped with air nozzles. Air nozzles inject cooling air into the three-section closely packed roller structure, reducing the temperature of the rollers and the cast billet. Both liquid-phase cooling lines and two-phase cooling lines transport cooling water, and their inlets are connected to quick-connect female connectors. The output ends of the liquid-phase cooling lines are equipped with nozzles to supply coolant to the three-section closely packed roller structure. The output ends of the two-phase cooling lines are equipped with atomizers, and the pressurized lines have multiple liquid-side outputs connected to the vapor inlets of the atomizers. The two-phase cooling lines and pressurized lines supply cooling mist to the three-section closely packed roller structure through the atomizers.

[0035] Specifically, the displacement detection device includes multiple displacement sensors for real-time monitoring of the displacement of the pusher component. These sensors can employ high-precision laser interferometers, installed near the pusher component, to accurately measure its extension and retraction distance. The temperature detection device includes multiple temperature sensors for real-time monitoring of the temperature of each roller in the three sections: Section I (double-sided densely packed rollers), Section II (double-sided densely packed rollers), and Section III (lower roller densely packed rollers). These temperature sensors are typically non-contact infrared temperature sensors, installed at appropriate locations near the rollers to provide timely feedback on temperature changes. The tension speed detection device includes a tension speed sensor for real-time detection of tension speed. The wear detection device includes a laser triangulation displacement sensor for detecting wear. This sensor calculates the wear condition of the roller surface by emitting a laser and measuring the angle of the reflected light. The sealing detection device includes a pressure-flow dual sensor, located in the lubrication line for real-time monitoring of the sealing status. This dual sensor simultaneously monitors the pressure and flow rate within the lubrication line; changes in pressure and flow rate when sealing problems occur allow for timely detection. The processor is simultaneously connected to the displacement detection device, temperature detection device, tension speed detection device, wear detection device, sealing detection device, and roll gap adjustment unit. The processor receives data from each detection device, analyzes and processes it, and then sends commands to the roll gap adjustment unit to achieve precise control of the roll gap.

[0036] The displacement sensor, temperature sensor, pull speed sensor, laser triangulation displacement sensor, and pressure-flow dual sensor in the embodiments of this application only need to measure the corresponding values. This application does not impose any restrictions on their positions and connections.

[0037] The roll gap control method for the continuous casting sector segment provided in this application includes the following steps: S1. Real-time acquisition of T, v, and ΔW, where T is the roller temperature, v is the pulling speed, and ΔW is the wear amount. In this step, a temperature sensor measures the roller temperature T in real time, a pulling speed sensor detects the pulling speed v in real time, and a laser triangulation displacement sensor detects the roller wear amount ΔW. These sensors transmit the acquired data to the processor.

[0038] S2. Establish the calculation formula for the roll gap compensation amount ΔG, and calculate the roll gap compensation amount ΔG. The calculation formula for the roll gap compensation amount ΔG is ΔG=K1·ΔT+K2·Δv+K3·ΔW, ΔT=T0-T, Δv=v-v0, K1+K2+K3=1, where T0 is the preset temperature and v0 is the preset tension speed. The processor calculates the roll gap compensation amount ΔG according to the formula based on the collected T, v, and ΔW, combined with the preset T0 and v0.

[0039] S3. Perform closed-loop adjustment until the roll gap deviation is ≤ ±0.05mm. The processor sends a command to the roll gap adjustment unit to adjust the roll gap based on the calculated roll gap compensation amount ΔG. Simultaneously, the displacement detection device monitors the actual roll gap value in real time and feeds the data back to the processor. The processor compares the actual value with the target value; if a deviation exists, it continues to adjust the roll gap until the roll gap deviation is within ±0.05mm.

[0040] S4. After the billet leaves the production line, surface defects are detected. Based on the surface defect detection results, the calculation formula for the roll gap compensation amount ΔG is periodically updated. The update method for the calculation formula of the roll gap compensation amount ΔG is through adjustment using a weight coefficient change model, which is a pre-trained deep learning model. The implementation principle of this application embodiment is as follows: the three-section closely spaced roller structure provides reasonable support and guidance for the movement of the billet, and the roller gap adjustment unit can accurately adjust the roller gap through piezoelectric stacking to adapt to different states of the billet.

[0041] The lubrication and cooling functions of the pipe-feeding structure ensure the normal operation of the system and reduce equipment wear and malfunctions. Each detection device monitors various system parameters in real time, and the processor adjusts the roll gap accordingly, improving the stability of the continuous casting process and the quality of the cast billet. The roll gap control method for the continuous casting sector further improves the accuracy and adaptability of roll gap control by real-time data acquisition, calculation of roll gap compensation, closed-loop adjustment, and updating the calculation formula based on surface defect detection results.

[0042] Compared with existing technologies, this system and method overcome the problems of low precision and slow response of traditional adjustment methods, thereby improving product quality.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A continuous casting fan-shaped section roll gap adjustment system, characterized in that, include: The three-section densely packed roller structure includes a main frame, a sector-shaped section I, a sector-shaped section II, and a sector-shaped section III. The sector-shaped section I includes a section of double-sided densely packed rollers arranged along a first arc direction. The sector-shaped section II includes a section of double-sided densely packed rollers arranged along the first arc direction. The sector-shaped section III includes a section of lower rollers arranged along the first arc direction. The sector-shaped sections I, II, and III are continuously arranged along the first arc direction to form an integral sector-shaped structure. Each roller of the double-sided densely packed rollers I, II, and III is connected to the main frame through a roller gap adjustment unit.

2. The continuous casting sector roll gap adjustment system according to claim 1, characterized in that, The first section of double-sided densely arranged rollers includes 14 pairs of Φ170mm rollers, the second section of double-sided densely arranged rollers includes 16 pairs of Φ190mm rollers, and the third section of densely arranged lower rollers includes 8 Φ240mm lower rollers.

3. The continuous casting sector roll gap adjustment system according to claim 1, characterized in that, The roll gap adjustment unit includes a pusher, a mounting base, and a bearing housing. The bearing housing is used to mount the roll, and the mounting base is used to mount the bearing housing. The mounting base is connected to the main frame via the pusher.

4. The continuous casting fan-shaped section roll gap adjustment system according to claim 3, characterized in that, The mounting base is provided with an Ω-shaped guide groove, and the bearing seat is provided with a guide protrusion that cooperates with the Ω-shaped guide groove.

5. The continuous casting fan-shaped section roll gap adjustment system according to claim 3, characterized in that, The pushing element is a piezoelectric stack, the extension and retraction direction of the piezoelectric stack is set along the radial direction of the first arc, the stroke of the piezoelectric stack is ±0.20mm, and the maximum thrust of the piezoelectric stack is 800N.

6. The continuous casting sector roll gap adjustment system according to claim 1, characterized in that, It also includes a piping structure, which comprises lubrication lines, pressurization lines, vapor-phase cooling lines, liquid-phase cooling lines, dual-phase cooling lines, and quick-connect female connectors. The lubrication line is used to transport lubricating oil, and the pressurization line is used to transport pressurized air. The input ends of both the lubrication line and the pressurization line are connected to the quick-connect female connector. The lubrication line has multiple output ends, each equipped with an oil-air distributor. The pressurization line has multiple oil-side output ends, the number of which is the same as the number of oil-air distributors. The oil-side output ends of the pressurization line are connected to the gas phase inlet of the oil-air distributor. The lubrication line and the pressurization line are used to supply lubricating oil and gas to the roll gap adjustment unit through the oil-air distributor. The vapor phase cooling pipeline is used to transport cooling gas. The inlet of the vapor phase cooling pipeline is connected to the quick-connect female connector. The vapor phase cooling pipeline has multiple outlets, each equipped with an air nozzle. The vapor phase cooling pipeline is used to supply cooling gas to the three-section closely spaced roller structure through the air nozzles. Both the dual-phase cooling pipeline and the liquid-phase cooling pipeline are used to transport cooling water. The inlet ends of both pipelines are connected to the quick-connect female connector. The liquid-phase cooling pipeline has multiple outlet ends, each equipped with a nozzle. The liquid-phase cooling pipeline is used to supply coolant to the three-section closely spaced roller structure through the nozzles. The dual-phase cooling pipeline has multiple output ends, each of which is equipped with an atomizer. The pressurizing pipeline has multiple liquid-side output ends, the number of which is the same as the number of atomizers. The liquid-side output ends of the pressurizing pipeline are connected to the gas phase inlet of the atomizer. The dual-phase cooling pipeline and the pressurizing pipeline are used to deliver cooling mist to the three-section densely packed roller structure through the atomizers.

7. The continuous casting sector roll gap adjustment system according to claim 6, characterized in that, It also includes a displacement detection device, a temperature detection device, a tension speed detection device, a wear detection device, a sealing detection device, and a processor; The displacement detection device includes multiple displacement sensors for real-time monitoring of the displacement of the pushing component. The temperature detection device includes multiple temperature sensors for real-time monitoring of the temperature of each roller in the I-section double-sided densely packed roller, the II-section double-sided densely packed roller, and the III-section lower roller densely packed roller. The tension speed detection device includes a tension speed sensor for real-time detection of tension speed. The wear detection device includes a laser triangulation displacement sensor, which is used to detect the amount of wear. The sealing detection device includes a pressure-flow dual sensor, which is installed in the lubrication pipeline for real-time detection of the sealing status. The processor is simultaneously connected to the displacement detection device, the temperature detection device, the tension detection device, the wear detection device, the sealing detection device, and the roll gap adjustment unit.

8. A method for controlling the roll gap of a continuous casting sector segment, used in the continuous casting sector segment roll gap adjustment system as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. Real-time acquisition of T, v, and ΔW, where T is the roller temperature, v is the pulling speed, and ΔW is the wear amount; S2. Establish the calculation formula for roll gap compensation ΔG, and calculate the roll gap compensation ΔG; S3. Perform closed-loop adjustment until the roll gap deviation is ≤ ±0.05mm; S4. After the billet is removed from the production line, surface defects are detected, and the calculation formula for the roll gap compensation amount ΔG is updated periodically based on the surface defect detection results.

9. The roll gap control method for the continuous casting sector segment according to claim 8, characterized in that, The formula for calculating the roll gap compensation ΔG in S2 is as follows: ΔG=K1·ΔT+K2·Δv+K3·ΔW, ΔT=T0-T, Δv=v-v0, K1+K2+K3=1, Where T0 is the preset temperature and v0 is the preset pulling speed.

10. The roll gap control method for the continuous casting sector segment according to claim 9, characterized in that, The calculation formula update method for the roll gap compensation amount ΔG in S4 is to adjust K1, K2, and K3 through a weight coefficient change model. The weight coefficient change model is a pre-trained deep learning model, which is pre-trained by obtaining a surface defect sample set for model training. The training sample set is input into a preset weight coefficient change model for model training, and an stimulus is introduced when the surface defects are reduced. The weight coefficient change model is obtained.

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