A sand mill screen cleaning system

Abstract

The application belongs to the technical field of sand mill equipment, and provides a sand mill filter screen cleaning system, which comprises a sand mill body, a detection module, a cleaning module and a control module; the sand mill body comprises a feeding port, a discharging pipeline, a stirring main shaft, a sleeve, a rotatable frame and a metal filter cartridge; the detection module comprises an X-ray emitter, an X-ray receiver and an image transmission assembly, is used for performing 360° full-coverage scanning detection on the surface of the metal filter cartridge, generating and transmitting a detection image to the control module; the cleaning module comprises a laser emitter and a sliding groove type moving device; the control module comprises a PLC controller and a central control processor, is used for receiving the detection image, determining a cleaning requirement, controlling the cleaning module to clean the surface of the metal filter cartridge, and starting secondary detection after the cleaning is completed. The application realizes the automation and intelligentization of sand mill filter screen cleaning.

Description

Technical Field

[0001] This invention relates to the field of sand mill equipment technology, and in particular to a sand mill filter cleaning system. Background Technology

[0002] Currently, in the production of lithium-ion battery cathode materials, especially in the production of lithium iron phosphate and lithium manganese iron phosphate, sand mills are commonly used as the main production equipment to adjust the primary particle size and uniformity of the product. The main working principle of a sand mill is that the main shaft of the sand mill drives the stirring shaft to rotate, and the rotation of the shaft drives the material in the barrel to be ground. During the grinding process, the material particles are continuously reduced in size to achieve the set effect. However, because the particle size of the material is continuously reduced during the grinding process, the specific surface area of ​​the particles is continuously increased. This can easily lead to material blockage when the material passes through the filter screen under long-term operation, which seriously affects the production efficiency and the quality of the material after the blockage is cleared.

[0003] The sand mill is a closed device, and the inside is not easy to clean. The components can only be cleaned by manually disassembling the filter cartridge chamber. The whole process requires the assistance of many people, which not only wastes human resources, but also has a negative impact on production efficiency and material cleanliness.

[0004] Therefore, it is necessary to provide a sand mill filter cleaning system. Summary of the Invention

[0005] This invention provides a sand mill filter cleaning system that automates and intelligently cleans the sand mill filter. An X-ray emitter and receiver perform omnidirectional scanning of the metal filter cartridge, ensuring thorough inspection and improving accuracy. A laser emitter, combined with a sliding chute-type moving device, precisely cleans the surface of the metal filter cartridge, effectively removing impurities and particles, ensuring unobstructed flow and filtration efficiency. The application of a PLC controller and central control processor automates the entire cleaning process, improving efficiency and reducing the difficulty and cost of manual operation. Furthermore, a secondary inspection after cleaning further ensures the cleaning effect, providing a strong guarantee for the stable operation of the sand mill.

[0006] This invention provides a sand mill filter cleaning system, comprising:

[0007] The sand mill body, detection module, cleaning module, and control module;

[0008] The main body of the sand mill includes a feed inlet, a discharge pipe, a stirring shaft, a sleeve, a rotatable frame, and a metal filter cartridge;

[0009] The detection module includes an X-ray emitter, an X-ray receiver, and an image transmission component, which is used to perform 360° full-coverage scanning detection on the surface of the metal filter cartridge, generate and transmit the detection images to the control module;

[0010] The cleaning module includes a laser emitter and a chute-type moving device;

[0011] The control module includes a PLC controller and a central control processor, which are used to receive detection images, determine cleaning requirements, control the cleaning module to clean the surface of the metal filter cartridge, and start secondary detection after cleaning is completed.

[0012] Furthermore, the metal filter cartridge has a cylindrical mesh structure, is made of 304 or 316 stainless steel, and has a wear-resistant coating on its surface.

[0013] Furthermore, the X-ray emitter is arranged around the metal filter cartridge and mounted on a rotatable frame, which is linked to the stirring shaft; the X-ray receiver is retractable and located inside the stirring shaft, allowing it to extend and retract; the X-ray emitter emits X-rays, which are received by the X-ray receiver to achieve full-coverage scanning and detection of the surface of the metal filter cartridge.

[0014] Furthermore, the image transmission component is used to send the detected images to the central control processor in the control module. The central control processor uses image analysis algorithms to identify damage and friction on the surface of the metal filter cartridge and to locate the damaged zirconium beads and material blockage at the blockage point on the surface of the metal filter cartridge. The image transmission component includes a multispectral imaging sub-component, which is used to identify the composition of the blockage material on the surface of the metal filter cartridge and generate a cleaning priority list.

[0015] Furthermore, the chute-type moving device is configured on a rotatable frame and connected to a PLC controller, making the entire device movable. The chute-type moving device has a built-in position sensor for real-time feedback of the laser emitter's position coordinates to the PLC controller. The moving speed of the chute-type moving device is adjusted by the PLC controller according to the adjustment of the input frequency.

[0016] Furthermore, the laser emitter is configured inside the rotatable frame and electrically connected to the PLC controller; upon receiving the cleaning control command from the PLC controller, the laser emitter performs targeted laser cleaning on the clogged areas on the surface of the metal filter cartridge; the laser intensity of the laser emitter is adjusted based on the PLC controller and according to the current output intensity.

[0017] The cleaning control command is obtained based on the judgment result output by the central control processor; the cleaning control command includes the start position, action time and intensity parameters of the laser emitter; the judgment result is generated based on the comparison result between the detected image and the set reference image, and on the set generation conditions.

[0018] Furthermore, the central control processor integrates an artificial intelligence module to learn from historical cleaning data and optimize subsequent cleaning parameters.

[0019] Furthermore, the secondary inspection involves scanning the surface of the cleaned metal filter cartridge with X-rays and comparing the results with the initial inspection data. If the results do not meet the standards, a secondary cleaning process is triggered.

[0020] Furthermore, it also includes a metal filter cartridge damage assessment module; the metal filter cartridge damage assessment module includes a metal filter cartridge damage assessment unit and a metal filter cartridge health assessment unit;

[0021] The metal filter cartridge damage determination unit is used to determine the degree of damage to the metal filter cartridge based on the processing results of the detection image by the convolutional neural network and the fusion of acquired multi-sensor data.

[0022] The metal filter cartridge health assessment unit is used to predict the remaining life of the metal filter cartridge and generate a metal filter cartridge health score based on the acquired historical damage data of the metal filter cartridge, the cleaning frequency of the cleaning module and the grinding intensity of the material, and a metal filter cartridge life prediction model constructed based on a long short-term memory network. The metal filter cartridge health score and replacement recommendations are displayed on the display interface of the PLC controller.

[0023] Furthermore, based on the processing results of the detection images using a convolutional neural network, and combined with the fusion of acquired multi-sensor data, the degree of damage to the metal filter cartridge is determined, including:

[0024] The edge features, crack distribution, and pore size change rate of the detected image are extracted based on a convolutional neural network, and the damage level of the metal filter cartridge is determined according to a set dynamic threshold. The dynamic threshold is adjusted in real time based on a set dynamic threshold model.

[0025] The damage index of the metal filter cartridge is calculated by weighting the abnormal vibration spectrum data collected by the vibration sensor configured on the metal filter cartridge, the local pressure drop data detected by the pressure sensor, and the damage degree data.

[0026] If the damage index is greater than or equal to the set first damage index threshold, the metal filter cartridge is determined to be severely damaged, and the sand mill is shut down; if the damage index is equal to the set second damage index threshold, the metal filter cartridge is determined to be moderately damaged, and the sand mill is operated at reduced speed and local reinforcement and cleaning are initiated; if the damage index is equal to the set third damage index threshold, the metal filter cartridge is determined to be slightly damaged, an early warning log is generated, and the life decay parameters of the metal filter cartridge are marked.

[0027] Compared with existing technologies, this invention has the following advantages and beneficial effects: it realizes the automation and intelligence of sand mill filter cleaning; by using an X-ray emitter and X-ray receiver to perform a full-range scan of the metal filter cartridge surface, it ensures no omissions in the inspection and improves the accuracy of the inspection; the laser emitter, combined with the sliding chute moving device, can accurately clean the surface of the metal filter cartridge, effectively removing impurities and particles attached to the surface of the metal filter cartridge, ensuring the unobstructed flow and filtration efficiency of the metal filter cartridge surface; the application of PLC controller and central control processor enables the entire cleaning process to be automated, which not only improves work efficiency but also reduces the difficulty and cost of manual operation; in addition, the secondary inspection after cleaning further ensures the cleaning effect and provides a strong guarantee for the stable operation of the sand mill.

[0028] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0029] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0030] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0031] Figure 1 This is a schematic diagram of a sand mill filter cleaning system.

[0032] Figure 2 This is a schematic diagram of the components of a sand mill filter cleaning system;

[0033] Figure 3 A schematic diagram of the sand mill filter cleaning process;

[0034] Figure 4 This is a schematic diagram illustrating the working principle of an X-ray receiver. Detailed Implementation

[0035] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0036] This invention provides a sand mill filter cleaning system, such as... Figure 1 As shown, it includes:

[0037] The sand mill body, detection module, cleaning module, and control module;

[0038] The main body of the sand mill includes a feed inlet, a discharge pipe, a stirring shaft, a sleeve, a rotatable frame, and a metal filter cartridge;

[0039] The detection module includes an X-ray emitter, an X-ray receiver, and an image transmission component, which is used to perform 360° full-coverage scanning detection on the surface of the metal filter cartridge, generate and transmit the detection images to the control module;

[0040] The cleaning module includes a laser emitter and a chute-type moving device;

[0041] The control module includes a PLC controller and a central control processor, which are used to receive detection images, determine cleaning requirements, control the cleaning module to clean the surface of the metal filter cartridge, and start secondary detection after cleaning is completed.

[0042] The working principle of the above technical solution is as follows: In order to realize a sand mill filter cleaning system, the material is first ground by the sand mill body. During the grinding process, the metal filter cartridge is responsible for filtering impurities to ensure the quality of the ground material. When too many impurities are attached to the surface of the metal filter cartridge, it will affect the grinding efficiency and material quality. At this time, the X-ray emitter in the detection module emits X-rays, the X-ray receiver receives the X-rays passing through the surface of the metal filter cartridge, and transmits the detection image to the control module through the image transmission component. The PLC controller in the control module receives these detection images and analyzes them using the central control processor to determine whether the metal filter cartridge needs to be cleaned. If the determination result is that cleaning is required, the control module controls the cleaning module to perform the cleaning operation. The laser emitter in the cleaning module emits a laser beam and performs precise laser cleaning on the surface of the metal filter cartridge through the sliding chute moving device. After the cleaning is completed, the control module restarts the detection module for a second detection to ensure that the cleanliness of the surface of the metal filter cartridge meets the requirements.

[0043] The specific workflow is as follows: Figure 2 As shown, when the grinding material enters the sand mill through the feed inlet, the material that meets the requirements is sorted by the continuous rotation of the stirring shaft and the action of the sleeve and metal filter cylinder shown; for example... Figure 3As shown, when an input command is received and the detection process is started, the X-ray emitter on the rotatable frame emits X-rays to begin scanning the surface of the metal filter cartridge. The X-ray emitter is located on a movable chute. The metal filter cartridge is cylindrical. Through 360° rotation, the X-rays completely scan the cartridge and transmit the data to the PLC control system in the control cabinet on the rotatable frame via an image transmission component. The PLC control system processes the information to determine the blockage status, foreign object presence, and related damage on the surface of the metal filter cartridge. After information processing, a laser emitter cleans the surface of the metal filter cartridge screen with laser, removing the blockage and foreign objects from the screen surface and cleaning them out through the discharge pipe, achieving the desired effect. The laser emitter can adjust the laser intensity by adjusting the current output intensity, thereby adapting to the blockage status of the metal filter cartridge surface under different conditions.

[0044] The beneficial effects of the above technical solution are as follows: by adopting the solution provided in this embodiment, the cleaning system achieves automation and intelligence, which improves the grinding efficiency of the sand mill and the quality of materials.

[0045] In one embodiment, the metal filter cartridge is a cylindrical mesh structure made of 304 or 316 stainless steel, and has a wear-resistant coating on its surface.

[0046] The working principle of the above technical solution is as follows: the wear-resistant coating can effectively resist the wear of the metal filter cartridge surface during the grinding process and extend its service life; the cylindrical mesh structure design not only ensures a good filtration effect, but also facilitates the penetration of the laser beam in the cleaning module and its uniform action on the filter cartridge surface, thereby achieving efficient cleaning operation; during operation, the material is filtered through the inside of the metal filter cartridge, impurities are intercepted by the filter cartridge, and the clean material continues to flow to the next process.

[0047] The beneficial effects of the above technical solution are as follows: The design of the wear-resistant coating and cylindrical mesh structure provided in this embodiment not only enhances the durability and filtration effect of the metal filter cartridge, but also ensures the efficiency and precision of the cleaning operation, making the entire sand mill filter cleaning system more stable and reliable, and suitable for grinding production needs of various scales.

[0048] In one embodiment, such as Figure 4 As shown, the X-ray emitter is arranged around the metal filter cartridge and mounted on a rotatable frame, which is linked to the stirring shaft; the X-ray receiver is retractable and located inside the stirring shaft, and can be extended and retracted; the X-ray emitter emits X-rays, which are received by the X-ray receiver to achieve full coverage scanning and detection of the surface of the metal filter cartridge.

[0049] The working principle of the above technical solution is as follows: When the X-ray emitter is activated, it emits X-rays around the metal filter cartridge. These rays penetrate the surface of the metal filter cartridge and are received by the X-ray receiver located inside the stirring shaft. Since the X-ray emitter is mounted on a rotatable frame that is linked to the stirring shaft, the X-ray emitter can rotate with the rotation of the stirring shaft, thereby achieving full-coverage scanning and detection of the surface of the metal filter cartridge. During the scanning process, the X-ray receiver analyzes the wear degree, defects, or impurity distribution on the surface of the metal filter cartridge based on information such as the intensity and penetration depth of the received rays, thus providing accurate data support for subsequent cleaning operations.

[0050] The beneficial effects of the above technical solution are as follows: by adopting the solution provided in this embodiment, not only is the detection efficiency and accuracy improved, but the cleaning strategy is also optimized to ensure that the metal filter cartridge always maintains a good working condition.

[0051] In one embodiment, the image transmission component is used to send the detected image to the central control processor in the control module. The central control processor uses image analysis algorithms to identify damage and friction on the surface of the metal filter cartridge and to locate the damaged zirconium beads and material blockage at the blockage point on the surface of the metal filter cartridge. The image transmission component includes a multispectral imaging sub-component, which is used to identify the composition of the blockage material on the surface of the metal filter cartridge and generate a cleaning priority list.

[0052] The working principle of the above technical solution is as follows: The image transmission component first transmits the detection image captured by the X-ray receiver to the central control processing of the control module in real time. The central control processor has an advanced image analysis algorithm built in. The algorithm will perform in-depth analysis on the processed image, identify the damage and friction marks on the surface of the metal filter cartridge, and can also accurately locate the blockage on the surface of the metal filter cartridge, including the damaged zirconium beads and the specific location of the material blockage. The multispectral imaging sub-component can capture the reflection characteristics of the blockage material on the surface of the metal filter cartridge under different spectra. By comparing and analyzing these characteristics, the composition of the blockage material can be accurately identified. Based on the identification results, the multispectral imaging sub-component will generate a cleaning priority list, which is sorted according to the severity of the material blockage and the difficulty of cleaning, providing a scientific guidance for subsequent cleaning operations.

[0053] The beneficial effects of the above technical solution are as follows: the solution provided in this embodiment not only greatly improves the efficiency and targeting of cleaning operations.

[0054] In one embodiment, the chute-type moving device is configured on a rotatable frame and connected to a PLC controller, making the entire device movable. The chute-type moving device has a built-in position sensor for real-time feedback of the laser emitter's position coordinates to the PLC controller. The moving speed of the chute-type moving device is adjusted by the PLC controller according to the adjustment of the input frequency.

[0055] The working principle of the above technical solution is as follows: Under the command of the PLC controller, the chute-type moving device can move precisely along a predetermined track on the rotatable frame. The position sensor continuously monitors the current position of the laser emitter and transmits this precise position coordinate data to the PLC controller in real time. Based on the received position data and combined with the preset cleaning path and strategy, the PLC controller dynamically adjusts the moving speed and direction of the chute-type moving device. This flexible movement control mechanism ensures that the laser emitter can accurately locate every area to be cleaned on the surface of the metal filter cartridge, and whether it is a damaged area, friction mark, or material blockage point, it can be treated in a timely and effective manner. At the same time, by adjusting the input frequency, the operator can easily control the movement speed of the chute-type moving device to adapt to the needs of different cleaning tasks, further improving the flexibility and efficiency of the cleaning operation.

[0056] The beneficial effects of the above technical solution are as follows: the solution provided in this embodiment can significantly improve the cleaning quality and efficiency of the sand mill filter screen; through the precise control of the PLC controller, the chute-type moving device can perform comprehensive and meticulous cleaning of the filter screen according to the preset cleaning path and strategy, effectively avoiding cleaning dead corners and omissions, and ensuring the cleanliness and service life of the filter screen; in addition, the operator can flexibly adjust the input frequency according to the actual cleaning needs, thereby controlling the movement speed of the chute-type moving device, improving the flexibility of the cleaning operation, further improving the cleaning efficiency, and reducing production costs.

[0057] In one embodiment, the laser emitter is configured inside the rotatable frame and electrically connected to the PLC controller; upon receiving a cleaning control command from the PLC controller, the laser emitter performs targeted laser cleaning on the clogged areas on the surface of the metal filter cartridge; the laser intensity of the laser emitter is adjusted based on the PLC controller according to the current output intensity.

[0058] The cleaning control command is obtained based on the judgment result output by the central control processor; the cleaning control command includes the start position, action time and intensity parameters of the laser emitter; the judgment result is generated based on the comparison result between the detected image and the set reference image, and on the set generation conditions.

[0059] The working principle of the above technical solution is as follows: When there is material blockage or other conditions requiring cleaning on the surface of the metal filter cartridge, the central control processor first acquires a detection image of the metal filter cartridge surface. Then, the central control processor compares and analyzes the detection image with a preset reference image, which represents the ideal cleanliness of the metal filter cartridge surface. Through comparative analysis, the central control processor can identify areas in the detection image that differ from the reference image; these differing areas are the blockage areas to be cleaned. Based on the results of the comparative analysis, the central control processor generates a corresponding judgment result and, according to preset generation conditions such as the area, shape, or severity of the blockage area, determines whether a cleaning control command needs to be output and the specific parameters of the cleaning control command. Once the judgment result meets the conditions for outputting a cleaning control command, the central control processor will send a cleaning control command to the PLC controller. After receiving the cleaning control command, the PLC controller will send corresponding cleaning control signals to the laser emitter according to the start position, action time, intensity parameters, etc. in the command. After receiving these signals, the laser emitter will perform targeted laser cleaning on the blocked area on the surface of the metal filter cartridge according to the preset cleaning strategy. At the same time, the PLC controller will also adjust the laser intensity of the laser emitter according to the current output intensity to ensure that the cleaning effect is optimal. Throughout the cleaning process, the PLC controller and the central control processor maintain real-time communication to ensure the accuracy and efficiency of the cleaning operation.

[0060] The beneficial effects of the above technical solution are as follows: By adopting the solution provided in this embodiment, accurate identification and efficient cleaning of the clogged area of ​​the sand mill filter screen can be achieved; by comparing and analyzing the detection image of the metal filter cartridge surface with the reference image through the central control processor, the clogged area to be cleaned can be accurately identified, avoiding the problems of incomplete or over-cleaning that may exist in traditional cleaning methods; at the same time, the PLC controller precisely controls the laser emitter according to the specific parameters in the cleaning control command, ensuring the accuracy and efficiency of the cleaning operation.

[0061] In one embodiment, the central control processor integrates an artificial intelligence module to learn historical cleaning data and optimize subsequent cleaning parameters.

[0062] The working principle of the above technical solution is as follows: The artificial intelligence module integrated in the central control processor can identify the optimal cleaning strategy under different clogging conditions through deep learning of historical cleaning data. During the learning process, the artificial intelligence module analyzes the data of each cleaning operation, including the location, size, and shape of the clogging area, as well as the parameter settings of the laser emitter during the cleaning process (such as start-up position, action time, intensity, etc.) and cleaning effect. By continuously accumulating and optimizing this data, the artificial intelligence module can gradually establish a precise cleaning parameter model. When the central control processor receives a new cleaning task, the artificial intelligence module will quickly match the optimal combination of cleaning parameters according to the current clogging area and send these parameters to the PLC controller. The PLC controller then uses these parameters to precisely control the laser emitter, thereby achieving efficient cleaning of the clogging area.

[0063] The beneficial effects of the above technical solution are as follows: by adopting the solution provided in this embodiment, based on the artificial intelligence module, not only is the accuracy and efficiency of cleaning operations improved, but the cost and time of manual intervention are also greatly reduced.

[0064] In one embodiment, the secondary inspection is performed by scanning the surface of the cleaned metal filter cartridge with X-rays and comparing the results of the secondary inspection with the initial inspection data. If the results do not meet the standards, a secondary cleaning process is triggered.

[0065] The working principle of the above technical solution is as follows: Secondary detection refers to the activation of an X-ray scanning device to comprehensively scan the surface of the metal filter cartridge after receiving a cleaning completion signal from the PLC controller. X-ray scanning can penetrate the tiny pores on the surface of the metal filter cartridge, capturing the state of the cleaned filter. After scanning, the system meticulously compares the data obtained from the secondary scan with the data recorded during the initial detection, including key indicators such as the residual condition of the clogged area and the flatness of the filter surface. If the comparison results show that the cleaning effect does not meet the preset standard, it is determined to be substandard, and the system will automatically trigger the secondary cleaning process. The secondary cleaning process will adjust the cleaning parameters based on the feedback from the initial cleaning, such as increasing the action time or intensity of the laser emitter, to ensure the best cleaning effect.

[0066] The beneficial effects of the above technical solution are as follows: by adding a secondary detection step and combining it with the high-precision scanning capability of X-rays, the quality control level of filter cleaning is significantly improved.

[0067] In one embodiment, a metal filter cartridge damage assessment module is further included; the metal filter cartridge damage assessment module includes a metal filter cartridge damage assessment unit and a metal filter cartridge health assessment unit;

[0068] The metal filter cartridge damage determination unit is used to determine the degree of damage to the metal filter cartridge based on the processing results of the detection image by the convolutional neural network and the fusion of acquired multi-sensor data.

[0069] The metal filter cartridge health assessment unit is used to predict the remaining life of the metal filter cartridge and generate a metal filter cartridge health score based on the acquired historical damage data of the metal filter cartridge, the cleaning frequency of the cleaning module and the grinding intensity of the material, and a metal filter cartridge life prediction model constructed based on a long short-term memory network. The metal filter cartridge health score and replacement recommendations are displayed on the display interface of the PLC controller.

[0070] The working principle of the above technical solution is as follows: During the operation of the sand mill filter screen cleaning system, the metal filter cartridge damage judgment and evaluation module, through the metal filter cartridge damage judgment unit, can efficiently process the detection images and, combined with data fusion technology from multiple sensors, accurately judge the degree of damage to the metal filter cartridge. This judgment process relies on advanced convolutional neural networks to ensure the accuracy and reliability of damage detection. At the same time, the metal filter cartridge health assessment unit, based on a metal filter cartridge life prediction model constructed using a long short-term memory network, predicts the remaining life of the metal filter cartridge and generates a corresponding health score. This model comprehensively considers multiple factors such as the historical damage data of the metal filter cartridge, the cleaning frequency of the cleaning module, and the grinding intensity of the material, thereby comprehensively assessing the health status of the metal filter cartridge. On the display interface of the PLC controller, users can clearly see the health score of the metal filter cartridge and replacement suggestions, which provides great convenience to users. By monitoring and evaluating the status of the metal filter cartridge in real time, users can take necessary maintenance measures in a timely manner to avoid production interruptions or equipment damage caused by metal filter cartridge damage, thereby effectively improving the operating efficiency and stability of the sand mill filter screen cleaning system.

[0071] The beneficial effects of the above technical solution are as follows: by adopting the solution provided in this embodiment, it is possible to accurately determine the degree of damage to the metal filter cartridge and predict its lifespan, which significantly improves the intelligence level of the sand mill filter screen cleaning system.

[0072] In one embodiment, based on the processing results of the detection image using a convolutional neural network and combined with the fusion of acquired multi-sensor data, the degree of damage to the metal filter cartridge is determined, including:

[0073] The edge features, crack distribution, and pore size change rate of the detected image are extracted based on a convolutional neural network, and the damage level of the metal filter cartridge is determined according to a set dynamic threshold. The dynamic threshold is adjusted in real time based on a set dynamic threshold model.

[0074] The damage index of the metal filter cartridge is calculated by weighting the abnormal vibration spectrum data collected by the vibration sensor configured on the metal filter cartridge, the local pressure drop data detected by the pressure sensor, and the damage degree data.

[0075] If the damage index is greater than or equal to the set first damage index threshold, the metal filter cartridge is determined to be severely damaged, and the sand mill is shut down; if the damage index is equal to the set second damage index threshold, the metal filter cartridge is determined to be moderately damaged, and the sand mill is operated at reduced speed and local reinforcement and cleaning are initiated; if the damage index is equal to the set third damage index threshold, the metal filter cartridge is determined to be slightly damaged, an early warning log is generated, and the life decay parameters of the metal filter cartridge are marked.

[0076] The working principle of the above technical solution is as follows: First, a convolutional neural network is used to perform in-depth analysis of the detected image to extract key feature information, such as edge features, crack distribution, and the rate of change of pore size. This information is an important basis for judging the degree of damage to the metal filter cartridge. The system will adjust the dynamic threshold in real time according to the preset dynamic threshold model to ensure the accuracy of the judgment. The introduction of the dynamic threshold enables the system to adapt to changes under different working conditions, improving the flexibility and accuracy of the judgment. At the same time, the system also integrates data from vibration sensors and pressure sensors configured on the metal filter cartridge. The vibration sensors can capture the abnormal vibration spectrum generated by the metal filter cartridge during operation, while the pressure sensors can detect sudden drops in local pressure. These data, along with the damage degree obtained through image processing, are then combined. The data is combined and weighted to calculate the damage index of the metal filter cartridge. Based on the different damage indices, the system will take corresponding measures. If the damage index exceeds the set first damage index threshold, it indicates that the metal filter cartridge is severely damaged. In this case, the system will immediately shut down the sand mill to prevent further damage and safety accidents. If the damage index equals the set second damage index threshold, it is judged as moderate damage. The system will reduce the operating speed of the sand mill and initiate a local reinforcement and cleaning program to slow down the further development of damage. If the damage index equals the set third damage index threshold, it is judged as minor damage. In this case, the system will generate an early warning log and mark the life decay parameters of the metal filter cartridge so that operators can pay attention in time and take necessary maintenance measures.

[0077] The beneficial effects of the above technical solution are as follows: The solution provided in this embodiment enables accurate judgment and timely handling of the degree of damage to metal filter cartridges, effectively avoiding the risk of decreased production efficiency and equipment failure caused by filter damage; through convolutional neural network image processing technology, the system can accurately capture minute signs of damage to the metal filter cartridge, and combined with real-time adjustment of dynamic thresholds, ensures the accuracy and flexibility of the judgment results; simultaneously, the fusion application of multi-sensor data further enhances the system's comprehensive judgment capability on the degree of damage to the metal filter cartridge; based on different damage indices, the system can automatically take corresponding handling measures, ensuring production safety and extending the service life of the equipment.

[0078] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A sand mill filter cleaning system, characterized in that, include: The sand mill body, detection module, cleaning module, and control module; The main body of the sand mill includes a feed inlet, a discharge pipe, a stirring shaft, a sleeve, a rotatable frame, and a metal filter cartridge; The detection module includes an X-ray emitter, an X-ray receiver, and an image transmission component, which is used to perform 360° full-coverage scanning detection on the surface of the metal filter cartridge, generate and transmit the detection images to the control module; The cleaning module includes a laser emitter and a chute-type moving device; The control module includes a PLC controller and a central control processor, which are used to receive detection images, determine cleaning requirements, control the cleaning module to clean the surface of the metal filter cartridge, and start secondary detection after cleaning is completed. It also includes a metal filter cartridge damage assessment module; the metal filter cartridge damage assessment module includes a metal filter cartridge damage assessment unit and a metal filter cartridge health assessment unit; The metal filter cartridge damage determination unit is used to determine the degree of damage to the metal filter cartridge based on the processing results of the detection image by the convolutional neural network and the fusion of acquired multi-sensor data. The metal filter cartridge health assessment unit is used to predict the remaining life of the metal filter cartridge and generate a metal filter cartridge health score based on the acquired historical damage data of the metal filter cartridge, the cleaning frequency of the cleaning module and the grinding intensity of the material, and a metal filter cartridge life prediction model constructed based on a long short-term memory network. The metal filter cartridge health score and replacement recommendations are displayed on the display interface of the PLC controller.

2. The sand mill filter cleaning system according to claim 1, characterized in that, The metal filter cartridge has a cylindrical mesh structure and is made of 304 or 316 stainless steel with a wear-resistant coating on the surface.

3. The sand mill filter cleaning system according to claim 2, characterized in that, The X-ray emitter is arranged around the metal filter cartridge and mounted on a rotatable frame, which is linked to the stirring shaft; the X-ray receiver is retractable and located inside the stirring shaft, allowing it to extend and retract during operation. The X-ray emitter emits X-rays, which are received by the X-ray receiver to achieve full-coverage scanning and detection of the surface of the metal filter cartridge.

4. The sand mill filter cleaning system according to claim 1, characterized in that, The image transmission component is used to send the detected images to the central control processor in the control module. The central control processor uses image analysis algorithms to identify damage and friction on the surface of the metal filter cartridge and to locate the damaged zirconium beads and material blockage at the blockage point on the surface of the metal filter cartridge. The image transmission component includes a multispectral imaging sub-component, which is used to identify the composition of the blockage material on the surface of the metal filter cartridge and generate a cleaning priority list.

5. A sand mill filter cleaning system according to claim 1, characterized in that, The sliding moving device is mounted on a rotatable frame and connected to a PLC controller, making the whole device movable. The sliding moving device has a built-in position sensor for real-time feedback of the laser emitter's position coordinates to the PLC controller. The moving speed of the chute-type moving device is adjusted by the PLC controller according to the input frequency.

6. A sand mill filter cleaning system according to claim 1, characterized in that, The laser emitter is located inside the rotatable frame and is electrically connected to the PLC controller. Upon receiving the cleaning control command from the PLC controller, the laser emitter performs targeted laser cleaning on the clogged areas on the surface of the metal filter cartridge. The laser intensity of the laser emitter is adjusted based on the PLC controller and the current output intensity. The cleaning control command is obtained based on the judgment result output by the central control processor; the cleaning control command includes the start position, action time and intensity parameters of the laser emitter; the judgment result is generated based on the comparison result between the detected image and the set reference image, and on the set generation conditions.

7. A sand mill filter cleaning system according to claim 1, characterized in that, The central control processor integrates an artificial intelligence module to learn from historical cleaning data and optimize subsequent cleaning parameters.

8. A sand mill filter cleaning system according to claim 1, characterized in that, The secondary inspection involves scanning the surface of the cleaned metal filter cartridge with X-rays and comparing the results with the initial inspection data. If the results do not meet the standards, a secondary cleaning process is triggered.

9. A sand mill filter cleaning system according to claim 1, characterized in that, Based on the processing results of the detection image using a convolutional neural network, and combined with the fusion of acquired multi-sensor data, the degree of damage to the metal filter cartridge is determined, including: The edge features, crack distribution, and pore size change rate of the detected image are extracted based on a convolutional neural network, and the damage level of the metal filter cartridge is determined according to a set dynamic threshold. The dynamic threshold is adjusted in real time based on a set dynamic threshold model. The damage index of the metal filter cartridge is calculated by weighting the abnormal vibration spectrum data collected by the vibration sensor configured on the metal filter cartridge, the local pressure drop data detected by the pressure sensor, and the damage degree data. If the damage index is greater than or equal to the set first damage index threshold, the metal filter cartridge is determined to be severely damaged, and the sand mill is shut down; if the damage index is equal to the set second damage index threshold, the metal filter cartridge is determined to be moderately damaged, and the sand mill is operated at reduced speed and local reinforcement and cleaning are initiated; if the damage index is equal to the set third damage index threshold, the metal filter cartridge is determined to be slightly damaged, an early warning log is generated, and the life decay parameters of the metal filter cartridge are marked.

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