Quick-hardening slice furnace water-cooling copper roller system with online monitoring and self-maintenance functions

Abstract

The invention discloses a water-cooling copper roller system with on-line monitoring and self-maintenance functions for a rapid-hardening slice furnace, and belongs to the technical field of maintenance of water-cooling copper rollers for rapid-hardening slice furnaces. Comprising a copper roller and a cooling module, the cooling module comprises a cooling water main circulation pipeline and a plurality of cooling water path units. The data acquisition module is used for acquiring real-time temperature data of the copper roller and cooling water data of the cooling module; the monitoring module is used for calculating a risk index according to the temperature data and the cooling water data and judging the risk condition of the water-cooling copper roller machine of the rapid-hardening sheet furnace according to the risk index; wherein the risk indexes comprise a health degree index, a structure risk index and a corrosion risk index; and the self-maintenance module is used for maintaining the cooling water path unit according to the temperature data and the cooling water data.

Description

Technical Field

[0001] This invention belongs to the field of maintenance technology for water-cooled copper rollers in rapid-setting sheet furnaces, specifically relating to a water-cooled copper roller system for rapid-setting sheet furnaces with online monitoring and self-maintenance functions. Background Technology

[0002] Rapid solidification thin-film technology is a key process for preparing high-performance NdFeB permanent magnets. Its principle involves spraying molten alloy onto the surface of a high-speed rotating water-cooled copper roller, achieving ultra-high-speed cooling at the level of millions of degrees Celsius per second, thereby obtaining ideal alloy thin films with fine grains and no harmful phases.

[0003] The water-cooled copper roller is the "heart" of this process. Its internal structure incorporates complex circulating cooling channels that use forced water cooling to instantly remove the enormous heat released during solidification, ensuring a continuous and stable rapid cooling effect. The uniformity and stability of the temperature field on the copper roller surface are prerequisites for ensuring consistent thickness, uniform microstructure, and the absence of microscopic defects in the rapidly solidified flakes.

[0004] However, the existing mechanical structure of water-cooled copper rollers suffers from a fundamental flaw that has long plagued the industry: the gradual, invisible attenuation and uneven cooling efficiency of the internal cooling water channels due to corrosion and scaling. Specifically, this manifests as: Hidden failure: Corrosion products (such as copper oxide) and scale gradually accumulate on the walls of the completely sealed internal water channels of the rotating copper roller, making them undetectable through conventional external observation or testing methods. Disruption of uniformity: Due to slight differences in water channel processing and fluid dynamics, scaling does not occur uniformly. This leads to unpredictable variations in cooling efficiency across different axial and circumferential regions of the copper roller, creating "hot spots" and "cold zones," directly causing fluctuations in sheet quality. Passive and destructive maintenance: Diagnosis can only be performed after batch quality problems occur, requiring destructive methods such as shutdown, disassembly, and dissection for inspection. Maintenance relies on offline chemical pickling, which is not only time-consuming and disruptive to production but may also damage the precision body and dynamic balance of the copper roller.

[0005] Therefore, there is an urgent need for a water-cooled copper roller system for rapid solidification sheet furnaces with online monitoring and self-maintenance functions to solve the problems existing in the current technology. Summary of the Invention

[0006] In view of this, the present invention provides a water-cooled copper roller system for a rapid solidification sheet furnace with online monitoring and self-maintenance functions, which solves the problem that the existing technology cannot monitor the health status of the internal water circuit in real time and perform online self-maintenance.

[0007] To achieve the above objectives, the present invention provides a water-cooled copper roller system for a rapid solidification sheet furnace with online monitoring and self-maintenance functions, comprising: The water-cooled copper roller mill for rapid solidification sheet furnace includes: copper rollers and a cooling module; wherein, the cooling module includes: a main cooling water circulation pipeline and multiple cooling water circuit units; The data acquisition module is used to acquire real-time temperature data of the copper roller and cooling water data of the cooling module; the cooling water data includes water quality data and water pressure data. The monitoring module is used to calculate the risk index based on temperature and cooling water data, and to determine the risk status of the water-cooled copper roller mill for the rapid solidification sheet furnace based on the risk index. The risk index includes: health index, structural risk index and corrosion risk index. The self-maintenance module is used to maintain the cooling water circuit unit based on temperature and cooling water data.

[0008] As an embodiment of the present invention, multiple cooling water circuit units are connected to the main cooling water circulation pipeline, and the multiple cooling water circuit units are evenly arranged in parallel inside the copper roller for cooling the copper roller when it is working.

[0009] As an embodiment of the present invention, the data acquisition module includes: A distributed temperature sensor network, located inside the copper roller, is used to collect real-time temperature data of the copper roller. The water quality monitoring unit is located on the main cooling water circulation pipeline and is used to acquire water quality data; The differential pressure monitoring unit, located within the cooling module, is used to acquire water pressure data for the main cooling water circulation pipeline and multiple cooling water circuit units.

[0010] As an embodiment of the present invention, the monitoring module performs the following operations: The health index is calculated based on cooling water and temperature data, as shown below: In the formula, Indicates the health index, Indicates the first Each cooling water circuit unit Health index at any given time. , and All represent preset weighting coefficients. Indicates the first Each cooling water circuit unit Constant temperature health factors Indicates the first Each cooling water circuit unit Constant flow health factors Indicates the first Each cooling water circuit unit Constant stress and health factors Indicates the first Each cooling water circuit unit The highest temperature of the copper roller at that moment. Indicates the ideal temperature of the copper roller. This indicates the maximum permissible temperature deviation of the copper roller. This indicates the ideal inlet and outlet pressure difference of the cooling water circuit unit. No. Each cooling water circuit unit Constant pressure difference between inlet and outlet, This represents the first empirical coefficient. Indicates the first Each cooling water circuit unit Constant water pressure This indicates the minimum inlet water pressure of the cooling water circuit unit. This indicates the maximum inlet water pressure of the cooling water circuit unit. Indicates the number of cooling water circuit units; Calculate the structural risk index As shown below: In the formula, and All represent preset structural weight coefficients. Indicates that the copper roller is in The thermal stress risk factor at any time Indicates the cooling module is in Constant pressure and risk factors This indicates the critical temperature gradient threshold that the copper roller material can withstand. Indicates that the copper roller is in The maximum temperature gradient at time t, This represents the second empirical coefficient. This indicates that the main cooling water circulation pipeline is in The pressure impact factor at any moment, Indicates the first Each cooling water circuit unit The pressure impact factor at any moment, This indicates that the main cooling water circulation pipeline is in Rate of change of pressure at any given time Indicates the first Each cooling water circuit unit Rate of change of pressure at any given time This indicates the threshold for the rate of pressure change in the main cooling water circulation pipeline. This indicates the threshold for the rate of pressure change of the cooling water circuit unit; The corrosion risk index is calculated as follows: In the formula, Indicates the corrosion risk index. and All represent preset corrosion weight coefficients. Indicates the concentration of corrosive ions. Indicates the concentration of suspended particles; The comprehensive risk index is calculated based on the health index, structural risk index, and corrosion risk index, and the risk status of the water-cooled copper roller mill for the rapid solidification sheet furnace is determined based on the comprehensive risk index; the risk status includes: normal, observation, early warning, and maintenance.

[0011] As an embodiment of the present invention, the self-maintenance module performs the following operations: Determine whether any cooling water circuit units require maintenance based on cooling water and temperature data; if so, perform maintenance on the required cooling water circuit units according to the preset maintenance strategy; if not, re-determine after a preset time. Acquire real-time water quality data of the main cooling water circulation pipeline, generate a chemical dosing strategy based on the real-time water quality data, and adjust the water quality of the main cooling water circulation pipeline according to the chemical dosing strategy.

[0012] As one embodiment of the present invention, determining whether a cooling water circuit unit needs maintenance based on cooling water data and temperature data includes: like At that time, the judgment of the first If one cooling water circuit unit requires maintenance, then maintenance is not required; among them, Indicates the first Each cooling water circuit unit The water pressure at the outlet at any given time. This indicates the preset pressure change threshold. Indicates the first Each cooling water circuit unit The average temperature of the copper roller region at the corresponding time. Indicates the first Each cooling water circuit unit The average temperature of the copper roller region at the corresponding time. .

[0013] As an embodiment of the present invention, the drug addition interval time is determined; The water quality deviation is calculated based on real-time water quality data, as shown below: In the formula, This indicates the deviation of the corrosion ion concentration at the inlet of the main cooling water circulation pipeline. This indicates the deviation of the suspended particulate concentration at the inlet of the main cooling water circulation pipeline. This indicates the concentration of corrosion ions at the inlet of the main cooling water circulation pipeline. This indicates that the inlet of the main cooling water circulation pipe is at... The concentration of suspended particles at any given time. and These represent the preset standard values ​​for the corrosion ion concentration and suspended particle concentration at the inlet of the main cooling water circulation pipeline, respectively. The single dosage of corrosion inhibitor and scale inhibitor is calculated based on the dosing interval and water quality deviation, as shown below: In the formula, and These represent the single addition amount of corrosion inhibitor and scale inhibitor, respectively. This indicates the water flow velocity in the main cooling water circulation pipe. This indicates the cross-sectional area of ​​the main cooling water circulation pipe. This represents the mass ratio coefficient that reacts with corrosive ions. This represents the mass ratio coefficient that reacts with suspended particles. The reagent addition strategy is derived based on the reagent addition interval and the single addition amount of corrosion inhibitor and scale inhibitor.

[0014] The beneficial effects of this invention are as follows: by providing a monitoring module to monitor the system online based on the collected data; at the same time, by using a self-maintenance module to determine in real time whether the corresponding cooling water circuit unit needs maintenance, and to perform automatic maintenance when maintenance is required, the invention solves the problem that the prior art cannot monitor the health status of the internal water circuit in real time and perform online self-maintenance.

[0015] Other advantages, objectives, and features of the invention will be set forth in the following description and will be apparent to those skilled in the art in some respects, or may be learned by practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0016] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration: Figure 1 This is a schematic diagram of the modules of the present invention. Detailed Implementation

[0017] like Figure 1 As shown, the present invention provides a water-cooled copper roller system for a rapid solidification sheet furnace with online monitoring and self-maintenance functions, comprising: The water-cooled copper roller mill for rapid solidification sheet furnace includes: copper rollers and a cooling module; wherein, the cooling module includes: a main cooling water circulation pipeline and multiple cooling water circuit units; The data acquisition module is used to acquire real-time temperature data of the copper roller and cooling water data of the cooling module; the cooling water data includes water quality data and water pressure data. The monitoring module is used to calculate the risk index based on temperature and cooling water data, and to determine the risk status of the water-cooled copper roller mill for the rapid solidification sheet furnace based on the risk index. The risk index includes: health index, structural risk index and corrosion risk index. The self-maintenance module is used to maintain the cooling water circuit unit based on temperature and cooling water data.

[0018] Multiple cooling water circuit units are connected to the main cooling water circulation pipeline. These multiple cooling water circuit units are evenly arranged in parallel inside the copper roller to cool the copper roller during operation.

[0019] The working principle of the above technical solution is as follows: In actual use, the copper roller of the water-cooled copper roller mill in the rapid-setting sheet furnace rotates at high speed under the drive of the main shaft, thereby completing the preparation of rapid-setting sheets; during the preparation process, cooling water is input to multiple cooling water circuit units through the main cooling water circulation pipeline to cool the copper roller; this technical solution uses data acquisition modules located on the copper roller, the main cooling water circulation pipeline, and multiple cooling water circuit units to collect real-time temperature data of the copper roller and cooling water data of the cooling modules; among which, the cooling water data includes: water quality data and water pressure data; then, through the digital twin module, based on the structural data of the water-cooled copper roller mill in the rapid-setting sheet furnace... A digital twin model is generated, and a structurally coupled digital model is constructed and updated based on real-time collected temperature and cooling water data before being presented to the administrator. Simultaneously, a monitoring module calculates the system's real-time health index, structural risk index, and corrosion risk index based on temperature and cooling water data. The risk index is used to assess the risk status of the water-cooled copper roller mill in the rapid-condensing sheet furnace, and an alarm is issued to the administrator based on the risk status. Finally, during system operation, a self-maintenance module determines whether the cooling water circuit unit requires maintenance. If maintenance is needed, the system shuts down and performs maintenance on the cooling water circuit unit according to a pre-set maintenance strategy. The beneficial effects of the above technical solution are as follows: By using a monitoring module to monitor the system online based on the collected data, and by using a self-maintenance module to determine in real time whether the corresponding cooling water circuit unit needs maintenance, and automatically maintaining it when necessary, the solution solves the problem that existing technologies cannot monitor the health status of the internal water circuit in real time and perform online self-maintenance.

[0020] In one embodiment, the data acquisition module includes: A distributed temperature sensor network, located inside the copper roller, is used to collect temperature data of the copper roller; The water quality monitoring unit is located on the main cooling water circulation pipeline and is used to acquire water quality data; The differential pressure monitoring unit, located within the cooling module, is used to acquire water pressure data for the main cooling water circulation pipeline and multiple cooling water circuit units.

[0021] The working principle and beneficial effects of the above technical solution are as follows: A distributed temperature sensor network installed inside the copper roller collects temperature data in real time. Multiple stainless steel capillaries are pre-embedded axially parallel to the surface layer of the copper roller, with distributed optical fibers (i.e., a distributed temperature sensor network) laid inside, thereby collecting temperature data at various locations on the surface of the copper roller. A water quality monitoring unit is installed at the outlet of the main cooling water circulation pipeline to acquire water quality data. This water quality monitoring unit is a high-frequency ultrasonic online water quality monitoring unit, containing a pair of oppositely arranged high-frequency ultrasonic transducers. The system measures the ultrasonic waves flowing through the copper roller in real time. The propagation speed of sound and the signal attenuation coefficient in the cooling water are used to indirectly assess water quality. Specifically, changes in sound speed are mainly correlated with the total dissolved solids (TDS, reflecting the concentration of corrosive ions), and changes in the attenuation coefficient are mainly correlated with the concentration of suspended particulate matter (reflecting flaking scale). Finally, the water pressure of the cooling module is monitored in real time by setting up multiple micro-differential pressure monitoring units. Specifically, water pressure monitoring units are set at the inlet and outlet of the main cooling water circulation pipeline to obtain the water pressure data of the main cooling water circulation pipeline, and water pressure monitoring units are set at the inlet and outlet of multiple cooling water circuit units to obtain the water pressure data of the cooling water circuit units.

[0022] In one embodiment, the digital twin module performs the following operations: Acquire temperature data, cooling water data, and structural data of the water-cooled copper roller mill for the rapid solidification sheet furnace; An initial structural coupling digital model was constructed based on the structural data of the water-cooled copper roller mill for the rapid solidification sheet furnace. The initial structural coupling digital model is updated based on cooling water and temperature data to obtain the structural coupling digital model.

[0023] The working principle and beneficial effects of the above technical solution are as follows: The digital twin module is based on multi-source data acquisition. It first synchronously acquires real-time temperature data, cooling water operation data, and equipment structure data of the water-cooled copper roller mill of the rapid solidification sheet furnace. Based on the structural data, an initial structural coupling digital model that fits the physical form of the equipment is built. Then, the real-time measured data of cooling water and temperature are used as correction parameters to iteratively calibrate and optimize the structural coupling relationship and thermal and cooling correlation parameters of the initial model, eliminating the idealization error of the initial modeling. Finally, a structural coupling digital model that highly matches the actual structure and real-time operating status of the physical equipment is constructed. This solution achieves accurate real-time mapping between the physical equipment and the digital model through the fusion modeling and dynamic updating of structural basic data and real-time operating data. It can truly reflect the coupled operating status of the water-cooled copper roller mill structure and the thermal and cooling systems, allowing administrators to intuitively judge whether there are any problems with the system.

[0024] In one embodiment, the monitoring module performs the following operations: The health index is calculated based on cooling water and temperature data, as shown below: In the formula, Indicates the health index, Indicates the first Each cooling water circuit unit Health index at any given time. , and All represent preset weighting coefficients. Indicates the first Each cooling water circuit unit Constant temperature health factors Indicates the first Each cooling water circuit unit Constant flow health factors Indicates the first Each cooling water circuit unit Constant stress and health factors Indicates the first Each cooling water circuit unit The highest temperature of the copper roller at that moment. Indicates the ideal temperature of the copper roller. This indicates the maximum permissible temperature deviation of the copper roller. This indicates the ideal inlet and outlet pressure difference of the cooling water circuit unit. No. Each cooling water circuit unit Constant pressure difference between inlet and outlet, This represents the first empirical coefficient. Indicates the first Each cooling water circuit unit Constant water pressure This indicates the minimum inlet water pressure of the cooling water circuit unit. This indicates the maximum inlet water pressure of the cooling water circuit unit. Indicates the number of cooling water circuit units; Calculate the structural risk index As shown below: In the formula, and All represent preset structural weight coefficients. Indicates that the copper roller is in The thermal stress risk factor at any time Indicates the cooling module is in Constant pressure and risk factors This indicates the critical temperature gradient threshold that the copper roller material can withstand. Indicates that the copper roller is in The maximum temperature gradient at time t, This represents the second empirical coefficient. This indicates that the main cooling water circulation pipeline is in The pressure impact factor at any moment, Indicates the first Each cooling water circuit unit The pressure impact factor at any moment, This indicates that the main cooling water circulation pipeline is in Rate of change of pressure at any given time Indicates the first Each cooling water circuit unit Rate of change of pressure at any given time This indicates the threshold for the rate of pressure change in the main cooling water circulation pipeline. This indicates the threshold for the rate of pressure change of the cooling water circuit unit; The corrosion risk index is calculated as follows: In the formula, Indicates the corrosion risk index. and All represent preset corrosion weight coefficients. Indicates the concentration of corrosive ions. Indicates the concentration of suspended particles; The comprehensive risk index is calculated based on the health index, structural risk index, and corrosion risk index, and the risk status of the water-cooled copper roller mill for the rapid solidification sheet furnace is determined based on the comprehensive risk index; the risk status includes: normal, observation, early warning, and maintenance.

[0025] The working principle and beneficial effects of the above technical solution are as follows: This technical solution uses multi-source operating data of the water-cooled copper roller of the rapid-condensing sheet furnace as the core input, and realizes dynamic early warning of equipment risks through multi-dimensional quantitative assessment: First, based on the collected temperature and cooling water data, a health index system including temperature health, flow health, pressure health, and comprehensive health is constructed. Through threshold comparison, temperature difference calculation, and pressure range verification, the real-time health status of each cooling water circuit unit is quantified; and a structural risk index is used to reflect the cumulative damage of the equipment structure under the coupling effect of thermo-mechanical and mechanical forces; then, the corrosion risk is quantified by the concentration of ions and suspended particles; when calculating the corrosion risk index, the corrosion ion concentration is obtained by subtracting the initial concentration from the concentration detected by the water quality detector at the outlet, and the suspended particle concentration used for calculation is obtained in the same way; finally, the health index, structural risk index, and corrosion risk index are weighted and fused according to preset weight coefficients to obtain a comprehensive risk index and map it to four levels of risk: normal, attention, early warning, and protection, completing the dynamic assessment of the entire process from data collection to risk early warning; This solution effectively avoids operational errors caused by misjudgment of a single indicator through deep integration of multi-source data and multi-dimensional risk quantification, significantly improving the safety and reliability of equipment operation. It provides a scientific basis for preventive maintenance and operating condition optimization of water-cooled copper rollers in rapid solidification sheet furnaces, and significantly reduces the probability of sudden equipment failures and operation and maintenance costs.

[0026] In one embodiment, the self-maintenance module performs the following operations: Determine whether any cooling water circuit units require maintenance based on cooling water and temperature data; if so, perform maintenance on the required cooling water circuit units according to the preset maintenance strategy; if not, re-determine after a preset time. Acquire real-time water quality data of the main cooling water circulation pipeline, generate a chemical dosing strategy based on the real-time water quality data, and adjust the water quality of the main cooling water circulation pipeline according to the chemical dosing strategy; Determine whether any cooling water circuit units require maintenance based on cooling water and temperature data, including: like At that time, the judgment of the first If one cooling water circuit unit requires maintenance, then maintenance is not required; among them, Indicates the first Each cooling water circuit unit The water pressure at the outlet at any given time. This indicates the preset pressure change threshold. Indicates the first Each cooling water circuit unit The average temperature of the copper roller region at the corresponding time. Indicates the first Each cooling water circuit unit The average temperature of the copper roller region at the corresponding time. ; The working principle and beneficial effects of the above technical solution are as follows: During equipment operation, the cooling water data of any cooling water circuit unit and the temperature data of the corresponding copper roller area are used to determine whether the current cooling water circuit unit needs maintenance. If maintenance is required, the cooling water circuit unit that needs maintenance is maintained according to the preset maintenance strategy. The maintenance strategy is to close the inlet valve and outlet valve of the cooling water circuit unit, open the corresponding pre-set solenoid valve, inject 0.5L of special cleaning fluid through the pipeline connected to the solenoid valve, and then inject 0.5L of 0.2MPa nitrogen gas. This cycle is repeated 5 times to complete the maintenance of the cooling water circuit unit. In addition, water quality monitoring instruments installed in the main cooling water circulation pipeline are used to monitor real-time water quality data entering the pipeline. This data is then compared with the water quality settings set by the administrator. Based on the comparison results, a chemical dosing strategy is generated, and the water quality in the main cooling water circulation pipeline is adjusted accordingly. For example, if the concentration of corrosion ions in the real-time water quality data is too high, a corrosion inhibitor will be introduced into the pipeline connected to the main circulation pipeline inlet to react with the corrosion ions, bringing the water quality up to the administrator's requirements. This controls the initial water quality entering the cooling water circuit unit, reducing corrosion and scaling. It also provides stable initial data for subsequent monitoring of the corrosion risk index.

[0027] In one embodiment, the drug addition interval is determined; The water quality deviation is calculated based on real-time water quality data, as shown below: In the formula, This indicates the deviation of the corrosion ion concentration at the inlet of the main cooling water circulation pipeline. This indicates the deviation of the suspended particulate concentration at the inlet of the main cooling water circulation pipeline. This indicates the concentration of corrosion ions at the inlet of the main cooling water circulation pipeline. This indicates that the inlet of the main cooling water circulation pipe is at... The concentration of suspended particles at any given time. and These represent the preset standard values ​​for the corrosion ion concentration and suspended particle concentration at the inlet of the main cooling water circulation pipeline, respectively. The single dosage of corrosion inhibitor and scale inhibitor is calculated based on the dosing interval and water quality deviation, as shown below: In the formula, and These represent the single addition amount of corrosion inhibitor and scale inhibitor, respectively. This indicates the water flow velocity in the main cooling water circulation pipe. This indicates the cross-sectional area of ​​the main cooling water circulation pipe. This represents the mass ratio coefficient that reacts with corrosive ions. This represents the mass ratio coefficient that reacts with suspended particles. The reagent addition strategy is derived based on the reagent addition interval and the single addition amount of corrosion inhibitor and scale inhibitor; The working principle and beneficial effects of the above technical solution are as follows: First, the real-time concentrations of corrosion ions and suspended particles at the inlet of the main cooling water circulation pipeline are collected and the difference between these concentrations and the preset standard values ​​is used to obtain the water quality deviation, directly quantifying the water quality at the inlet. Then, combined with the cooling water flow velocity, pipeline cross-sectional area, agent addition interval, and the reaction mass ratio coefficient between the agent and the corresponding reactant, the single addition amount of corrosion inhibitor and scale inhibitor suitable for the current water circulation volume and concentration is calculated. Finally, the addition interval and single addition amount are integrated to form an agent addition strategy that fits the real-time water quality and system operating conditions. Among them, the agent addition interval is determined by experts based on experience according to the water flow velocity and the diffusion rate of the agent. This solution calculates the dosage by adjusting the deviation and coupling system operating conditions, thus achieving a precise correspondence between the dosage and water quality. This avoids problems of insufficient or excessive dosage and can adapt to fluctuations in system operating conditions such as water flow rate, ensuring that the dosage closely matches the actual circulation volume of cooling water.

[0028] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A water-cooled copper roller system for a rapid solidification sheet furnace with online monitoring and self-maintenance functions, characterized in that, include: The water-cooled copper roller mill for rapid solidification sheet furnace includes: copper rollers and a cooling module; wherein, the cooling module includes: a main cooling water circulation pipeline and multiple cooling water circuit units; The data acquisition module is used to acquire real-time temperature data of the copper roller and cooling water data of the cooling module; the cooling water data includes water quality data and water pressure data. The monitoring module is used to calculate the risk index based on temperature and cooling water data, and to determine the risk status of the water-cooled copper roller mill for the rapid solidification sheet furnace based on the risk index. The risk index includes: health index, structural risk index and corrosion risk index. The self-maintenance module is used to maintain the cooling water circuit unit based on temperature and cooling water data.

2. The water-cooled copper roller system for a rapid solidification sheet furnace with online monitoring and self-maintenance functions according to claim 1, characterized in that, Multiple cooling water circuit units are connected to the main cooling water circulation pipeline. These multiple cooling water circuit units are evenly arranged in parallel inside the copper roller to cool the copper roller during operation.

3. The water-cooled copper roller system for a rapid-setting sheet furnace with online monitoring and self-maintenance functions according to claim 1, characterized in that, The data acquisition module includes: A distributed temperature sensor network, located inside the copper roller, is used to collect temperature data of the copper roller; The water quality monitoring unit is located on the main cooling water circulation pipeline and is used to acquire water quality data; The differential pressure monitoring unit, located within the cooling module, is used to acquire water pressure data for the main cooling water circulation pipeline and multiple cooling water circuit units.

4. The water-cooled copper roller system for a rapid-setting sheet furnace with online monitoring and self-maintenance functions according to claim 1, characterized in that, The monitoring module performs the following operations: The health index is calculated based on cooling water and temperature data, as shown below: In the formula, Indicates the health index, Indicates the first Each cooling water circuit unit Health index at any time , and All represent preset weighting coefficients. Indicates the first Each cooling water circuit unit Constant temperature health factors Indicates the first Each cooling water circuit unit Constant flow health factors Indicates the first Each cooling water circuit unit Constant stress and health factors Indicates the first Each cooling water circuit unit The highest temperature of the copper roller at that moment. Indicates the ideal temperature of the copper roller. This indicates the maximum permissible temperature deviation of the copper roller. This indicates the ideal inlet and outlet pressure difference of the cooling water circuit unit. No. Each cooling water circuit unit Constant pressure difference between inlet and outlet This represents the first empirical coefficient. Indicates the first Each cooling water circuit unit Constant water pressure This indicates the minimum inlet water pressure of the cooling water circuit unit. This indicates the maximum inlet water pressure of the cooling water circuit unit. Indicates the number of cooling water circuit units; Calculate the structural risk index As shown below: In the formula, and All represent preset structural weight coefficients. Indicates that the copper roller is in The thermal stress risk factor at any time Indicates the cooling module is in Constant pressure and risk factors This indicates the critical temperature gradient threshold that the copper roller material can withstand. Indicates that the copper roller is in The maximum temperature gradient at time t, This represents the second empirical coefficient. This indicates that the main cooling water circulation pipeline is in The pressure impact factor at any moment, Indicates the first Each cooling water circuit unit The pressure impact factor at any moment, This indicates that the main cooling water circulation pipeline is in Rate of change of pressure at any given time Indicates the first Each cooling water circuit unit Rate of change of pressure at any given time This indicates the threshold for the rate of pressure change in the main cooling water circulation pipeline. This indicates the threshold for the rate of pressure change of the cooling water circuit unit; The corrosion risk index is calculated as follows: In the formula, Indicates the corrosion risk index. and All represent preset corrosion weight coefficients. Indicates the concentration of corrosive ions. Indicates the concentration of suspended particles; The comprehensive risk index is calculated based on the health index, structural risk index, and corrosion risk index, and the risk status of the water-cooled copper roller mill for the rapid solidification sheet furnace is determined based on the comprehensive risk index; the risk status includes: normal, observation, early warning, and maintenance.

5. The water-cooled copper roller system for a rapid-setting sheet furnace with online monitoring and self-maintenance functions according to claim 1, characterized in that, The self-maintenance module performs the following operations: Determine whether any cooling water circuit units require maintenance based on cooling water and temperature data; if so, perform maintenance on the required cooling water circuit units according to the preset maintenance strategy; if not, re-determine after a preset time. Acquire real-time water quality data of the main cooling water circulation pipeline, generate a chemical dosing strategy based on the real-time water quality data, and adjust the water quality of the main cooling water circulation pipeline according to the chemical dosing strategy.

6. The water-cooled copper roller system for a rapid-setting sheet furnace with online monitoring and self-maintenance functions according to claim 5, characterized in that, Determine whether any cooling water circuit units require maintenance based on cooling water and temperature data, including: like At that time, the judgment of the first If one cooling water circuit unit requires maintenance, then maintenance is not required; among them, Indicates the first Each cooling water circuit unit The water pressure at the outlet at any given time. This indicates the preset pressure change threshold. Indicates the first Each cooling water circuit unit The average temperature of the copper roller region at the corresponding time. Indicates the first Each cooling water circuit unit The average temperature of the copper roller region at the corresponding time. .

7. A water-cooled copper roller system for a rapid-setting sheet furnace with online monitoring and self-maintenance functions as described in claim 5, characterized in that, A reagent dosing strategy is generated based on real-time water quality data, including: Determine the interval between drug additions; The water quality deviation is calculated based on real-time water quality data, as shown below: In the formula, This indicates the deviation of the corrosion ion concentration at the inlet of the main cooling water circulation pipeline. This indicates the deviation of the suspended particulate concentration at the inlet of the main cooling water circulation pipeline. This indicates the concentration of corrosion ions at the inlet of the main cooling water circulation pipeline. This indicates that the inlet of the main cooling water circulation pipe is at... The concentration of suspended particles at any given time. and These represent the preset standard values ​​for the corrosion ion concentration and suspended particle concentration at the inlet of the main cooling water circulation pipeline, respectively. The single dosage of corrosion inhibitor and scale inhibitor is calculated based on the dosing interval and water quality deviation, as shown below: In the formula, and These represent the single addition amount of corrosion inhibitor and scale inhibitor, respectively. This indicates the water flow velocity in the main cooling water circulation pipe. This indicates the cross-sectional area of ​​the main cooling water circulation pipe. This represents the mass ratio coefficient that reacts with corrosive ions. This represents the mass ratio coefficient that reacts with suspended particles. The reagent addition strategy is derived based on the reagent addition interval and the single addition amount of corrosion inhibitor and scale inhibitor.

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