Sand mill filter screen cleaning system

Abstract

The invention 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 hole, 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 and is used for performing 360-degree full-coverage scanning detection on the surface of the metal filter cartridge and generating and transmitting a detection image to the control module; the cleaning module comprises a laser transmitter and a sliding groove type moving device. The control module comprises a PLC and a central control processor and is used for receiving the detection image, judging the cleaning requirement, controlling the cleaning module to clean the surface of the metal filter cartridge and starting secondary detection after cleaning is completed. According to the sand mill filter screen cleaning device, automation and intelligence of sand mill filter screen cleaning are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of sand mill equipment, in particular to a sand mill filter cleaning system. Background Art

[0002] Nowadays, in the field of lithium-ion battery positive electrode material production, especially in the field of lithium iron phosphate and lithium iron manganese phosphate production, in order to adjust the primary particle size and uniformity of the product primary particles, sand mills are often used as the main production equipment. The main working principle of the sand mill is to drive the stirring shaft to rotate through the main shaft of the sand mill, and drive the material in the barrel through the rotation of the shaft to grind the material. During the grinding, the material particles are continuously reduced to achieve the set effect; in the grinding process, because the material particle size is continuously reduced during the grinding, the specific surface area of the particles is continuously increased. In this way, when the equipment works for a long time, it is easy for the material to be blocked when passing through the filter, which seriously affects the production efficiency and has a greater impact on the quality of the material removed after the blockage.

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

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

[0005] The present invention provides a sand mill filter cleaning system, which realizes the automation and intelligence of sand mill filter cleaning; the metal filter cartridge is scanned in all directions by an X-ray transmitter and an X-ray receiver, ensuring that no detection is missed and improving the accuracy of detection; the laser transmitter is combined with a slide-type moving device to accurately clean the surface of the metal filter cartridge, effectively removing impurities and particulate matter attached to the surface of the metal filter cartridge, and ensuring the patency and filtration efficiency of the metal filter cartridge surface; the application of a PLC controller and a central control processor enables the entire cleaning process to be automatically controlled, which not only improves work efficiency, but also reduces the difficulty and cost of manual operation; in addition, secondary detection after cleaning is completed further ensures the cleaning effect, providing a strong guarantee for the stable operation of the sand mill.

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

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

[0008] The sand mill body includes a feed port, a discharge pipe, a stirring spindle, a sleeve, a rotatable frame and a metal filter cartridge;

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

[0010] The cleaning module includes a laser transmitter and a slide-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 is a cylindrical mesh structure, made of 304 or 316 stainless steel, and has a wear-resistant coating on the surface.

[0013] Furthermore, the X-ray emitter is arranged around the top of the metal filter cartridge and is installed on a rotatable frame, which is linked to the stirring spindle; the X-ray receiver is retractable, located inside the stirring spindle, and can work retractably; 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 detection image to the central control processor in the control module. The central control processor uses the image analysis algorithm to identify the damage and friction on the surface of the metal filter cartridge and locate the broken zirconium beads and material blockages at the surface of the metal filter cartridge; the image transmission component includes a multi-spectral imaging sub-component, which is used to identify the composition of the blocking material on the surface of the metal filter cartridge and generate a cleaning priority list.

[0015] Furthermore, the slide-type moving device is configured on a rotatable frame, and the slide-type moving device is connected to a PLC controller and is movable as a whole; the slide-type moving device has a built-in position sensor for real-time feedback of the position coordinates of the laser emitter to the PLC controller; the moving speed of the slide-type moving device is adjusted based on the PLC controller and the input frequency.

[0016] Furthermore, a laser emitter is disposed inside the rotatable frame and is electrically connected to the PLC controller. Upon receiving a cleaning control command from the PLC controller, the laser emitter performs a fixed-point laser cleaning on the clogged area on the surface of the metal filter cartridge. The laser intensity of the laser emitter is adjusted based on the current output intensity of the PLC controller.

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

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

[0019] Furthermore, the secondary inspection is to scan the surface of the cleaned metal filter cartridge a second time through X-rays, and compare the secondary scanning results with the set initial inspection data. If the results do not meet the standards, the secondary cleaning process is triggered.

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

[0021] The metal filter cartridge damage determination unit is used to determine the damage degree of the metal filter cartridge based on the processing results of the detection image by the convolutional neural network and the fusion of the 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 metal filter cartridge life prediction model constructed based on the long short-term memory network according to the historical damage data of the metal filter cartridge, the cleaning frequency of the cleaning module and the material grinding intensity. 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 image by the convolutional neural network and the fusion of the acquired multi-sensor data, the damage degree of the metal filter cartridge is determined, including:

[0024] The convolutional neural network is used to extract the edge features, crack distribution, and pore size change rate of the inspection image, and the damage degree of the metal filter cartridge is determined based on the set dynamic threshold. The dynamic threshold is adjusted in real time based on the set dynamic threshold model.

[0025] The damage index of the metal filter cartridge is obtained by weighted calculation based on 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 judged 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 judged to be moderately damaged, the sand mill is slowed down and local reinforcement cleaning is started; if the damage index is equal to the set third damage index threshold, the metal filter cartridge is judged to be slightly damaged, an early warning log is generated and the life attenuation parameter of the metal filter cartridge is marked.

[0027] Compared with the prior art, the present invention has the following advantages and beneficial effects: it realizes the automation and intelligence of the sand mill filter cleaning; the metal filter cartridge surface is scanned in all directions by the X-ray emitter and the X-ray receiver, ensuring that no detection is missed and improving the accuracy of detection; the laser emitter cooperates with the slide-type moving device to accurately clean the metal filter cartridge surface, effectively removing impurities and particulate matter attached to the metal filter cartridge surface, and ensuring the patency and filtration efficiency of the metal filter cartridge surface; the application of the PLC controller and the 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 the cleaning is completed further ensures the cleaning effect, providing a strong guarantee for the stable operation of the sand mill.

[0028] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0029] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 This is a structural diagram of a sand mill filter cleaning system;

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

[0033] Figure 3 This is a schematic diagram of the sand mill filter cleaning process;

[0034] Figure 4 Schematic diagram of the working principle of the X-ray receiver. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0036] The present invention provides a sand mill filter cleaning system, such as Figure 1 As shown, including:

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

[0038] The sand mill body includes a feed port, a discharge pipe, a stirring spindle, a sleeve, a rotatable frame and a metal filter cartridge;

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

[0040] The cleaning module includes a laser transmitter and a slide-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 there are too many impurities attached to the surface of the metal filter cartridge, it will affect the grinding efficiency and material quality. At this time, the X-ray transmitter in the detection module emits X-rays, and 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 uses the central control processor to analyze and determine whether the metal filter cartridge needs to be cleaned. If the judgment result is that cleaning is required, the control module controls the cleaning module to perform the cleaning operation. The laser transmitter in the cleaning module emits a laser beam, and the surface of the metal filter cartridge is accurately laser cleaned through a slide-type moving device. After cleaning is completed, the control module starts the detection module again for secondary detection to ensure that the cleanliness of the metal filter cartridge surface meets the requirements.

[0043] The specific work flow is: Figure 2 As shown in the figure, when the grinding material enters the sand mill from the feed port, the materials that meet the conditions are sorted through the continuous rotation of the stirring main shaft and the action of the sleeve and metal filter cartridge shown in the figure; Figure 3As shown, when the input instruction is received and the detection process button is started, the X-ray emitter on the rotatable frame emits X-rays and starts to scan the surface of the metal filter cartridge. The X-ray emitter is located on the movable slide. The metal filter cartridge is cylindrical and rotates 360°. The rays completely scan it and transmit it to the PLC control system in the control cabinet on the rotatable frame through the image transmission component. The PLC control system completes information processing to determine the blockage condition of the metal filter cartridge surface and the area where foreign matter exists, as well as related damage conditions; after completing the information processing, the laser emitter is used to clean the surface of the metal filter cartridge screen, separate the blocked foreign matter from the screen surface, and clean it out from the discharge pipe to achieve the desired effect; the laser emitter can adjust the laser intensity by adjusting the current output intensity, thereby adapting to the blockage condition 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 is automated and intelligent, thereby improving the grinding efficiency and material quality of the sand mill.

[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 the surface.

[0046] The working principle of the above technical solution is as follows: the wear-resistant coating can effectively resist the wear of the material on the surface of the metal filter cartridge during the grinding process, thereby extending its service life; the cylindrical mesh structure design not only ensures a good filtration effect, but also facilitates the laser beam in the cleaning module to penetrate and evenly act on the surface of the filter cartridge, achieving efficient cleaning operations; 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: adopting the solution provided in this embodiment, the design of the wear-resistant coating and the cylindrical mesh structure not only enhances the durability and filtering effect of the metal filter cartridge, but also ensures the efficiency and accuracy 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, Figure 4 As shown, the X-ray emitter is arranged around the top of the metal filter cartridge and installed on a rotatable frame, which is linked to the stirring spindle; the X-ray receiver is retractable, located inside the stirring spindle, and can work retractably; 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 started, it will emit X-ray 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 spindle. Since the X-ray emitter is installed on a rotatable frame, and the frame is linked to the stirring spindle, the X-ray emitter can rotate with the rotation of the stirring spindle, thereby achieving full coverage scanning and detection of the surface of the metal filter cartridge; during the scanning process, the X-ray receiver will analyze the degree of wear, defects or impurity distribution on the surface of the metal filter cartridge based on the received ray intensity, penetration depth and other information, thereby providing accurate data support for subsequent cleaning operations.

[0050] The beneficial effects of the above technical solution are as follows: adopting the solution provided in this embodiment not only improves the detection efficiency and accuracy, but also helps to optimize the cleaning strategy and 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 detection image to the central control processor in the control module. The central control processor uses an image analysis algorithm to identify the damage and friction on the surface of the metal filter cartridge and locate the damaged zirconium beads and material blockages at the surface of the metal filter cartridge. The image transmission component includes a multi-spectral imaging sub-component for identifying the composition of the blocking material on the surface of the metal filter cartridge and generating 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 a built-in advanced image analysis algorithm. The algorithm will conduct an in-depth analysis of the processed image to 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 broken zirconium beads and the specific location of the material blockage; the multispectral imaging subcomponent can capture the reflection characteristics of the blocking material on the surface of the metal filter cartridge under different spectra, and accurately identify the composition of the blocking material by comparing and analyzing these characteristics. Based on the identification results, the multispectral imaging subcomponent will generate a cleaning priority list, sorting it according to the severity of the material blockage and the difficulty of cleaning, providing scientific guidance for subsequent cleaning operations.

[0053] The beneficial effect of the above technical solution is that the solution provided by this embodiment not only greatly improves the efficiency and pertinence of the cleaning operation.

[0054] In one embodiment, the slide-type moving device is configured on a rotatable frame, and the slide-type moving device is connected to a PLC controller and is movable as a whole; the slide-type moving device has a built-in position sensor for real-time feedback of the position coordinates of the laser emitter to the PLC controller; the moving speed of the slide-type moving device is adjusted based on the PLC controller and the input frequency.

[0055] The working principle of the above technical solution is as follows: under the instruction of the PLC controller, the chute-type moving device can move precisely along the predetermined track on the rotatable frame. The position sensor continuously monitors the current position of the laser emitter and transmits these precise position coordinate data to the PLC controller in real time. The PLC controller dynamically adjusts the movement speed and direction of the chute-type moving device based on the received position data and the preset cleaning path and strategy. 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, whether it is damaged, friction marks or material blockage points, they can be dealt with 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: the solution provided in this embodiment can significantly improve the cleaning quality and efficiency of the sand mill filter; through the precise control of the PLC controller, the chute-type moving device can perform comprehensive and detailed cleaning of the filter 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; in addition, the operator can flexibly adjust the input frequency according to actual cleaning needs, thereby controlling the movement speed of the chute-type moving device, improving the flexibility of the cleaning operation, and further improving the cleaning efficiency and reducing production costs.

[0057] In one embodiment, a laser emitter is disposed inside a rotatable frame and electrically connected to a PLC controller. Upon receiving a cleaning control command from the PLC controller, the laser emitter performs a fixed-point laser cleaning on the clogged area on the surface of the metal filter cartridge. The laser intensity of the laser emitter is adjusted based on the current output intensity of the PLC controller.

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

[0059] The working principle of the above technical solution is: when there is material blockage or other conditions that require cleaning on the surface of the metal filter cartridge, the central control processor will first obtain a detection image of the metal filter cartridge surface, and then the central control processor will compare and analyze the detection image with a preset reference image. The reference image represents the ideal clean state of the metal filter cartridge surface; through comparative analysis, the central control processor can identify areas in the detection image that are different from the reference image, and these difference areas are the clogged areas to be cleaned; based on the results of the comparative analysis, the central control processor will generate a corresponding judgment result, and determine whether it is necessary to output a cleaning control command and the specific parameters of the cleaning control command based on preset generation conditions, such as the area, shape or severity of the clogged area. ; Once the judgment result meets the conditions for outputting the 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 a corresponding cleaning control signal to the laser emitter based on the starting position, action time and intensity parameters in the command; after receiving these signals, the laser emitter will perform fixed-point 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 the best cleaning effect; during the entire cleaning process, the PLC controller maintains real-time communication with the central control processor to ensure the accuracy and efficiency of the cleaning operation.

[0060] The beneficial effects of the above technical solution are: by adopting the solution provided in this embodiment, accurate identification and efficient cleaning of the clogged area of the sand mill filter 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 cleaning or excessive cleaning that may exist in traditional cleaning methods; at the same time, the PLC controller accurately 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 for learning historical cleaning data and optimizing 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 blockage conditions through deep learning of historical cleaning data; during the learning process, the artificial intelligence module will analyze the data of each cleaning operation, including the position, size, shape of the blocked area, and the parameter settings of the laser emitter during the cleaning process (such as starting position, action time, intensity, etc.) and cleaning effect, etc. By continuously accumulating and optimizing these data, the artificial intelligence module can gradually establish a set of accurate cleaning parameter models; when the central control processor receives a new cleaning task, the artificial intelligence module will quickly match the optimal cleaning parameter combination according to the current situation of the blocked area, and send these parameters to the PLC controller; the PLC controller will then accurately control the laser emitter based on these parameters, thereby achieving efficient cleaning of the blocked area.

[0063] The beneficial effects of the above technical solution are: adopting the solution provided by this embodiment, based on the artificial intelligence module, not only improves the accuracy and efficiency of the cleaning operation, but also greatly reduces the cost and time of manual intervention.

[0064] In one embodiment, the secondary inspection is to perform a secondary scan on the surface of the cleaned metal filter cartridge by X-rays, and compare the secondary scan result with the set initial inspection data. If the result does not meet the standard, the secondary cleaning process is triggered.

[0065] The working principle of the above technical solution is as follows: Secondary inspection refers to the activation of X-ray scanning equipment to conduct a comprehensive scan of the metal filter cartridge surface after receiving the cleaning completion signal from the PLC controller. X-ray scanning can penetrate the tiny pores on the surface of the metal filter cartridge and capture the state of the filter after cleaning. After the scan is completed, the system will carefully compare the data obtained from the secondary scan with the data recorded during the initial inspection, including key indicators such as the residue in the clogged area and the flatness of the filter surface. If the comparison results show that the cleaning effect does not meet the preset standards, it is judged as not meeting the standards. At this time, 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 effect of the above technical solution is: by adopting the solution provided by this embodiment, by adding a secondary detection link 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, the invention further comprises a metal filter cartridge damage determination and assessment module; the metal filter cartridge damage determination and assessment module comprises a metal filter cartridge damage determination unit and a metal filter cartridge health assessment unit;

[0068] The metal filter cartridge damage determination unit is used to determine the damage degree of the metal filter cartridge based on the processing results of the detection image by the convolutional neural network and the fusion of the 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 metal filter cartridge life prediction model constructed based on the long short-term memory network according to the historical damage data of the metal filter cartridge, the cleaning frequency of the cleaning module and the material grinding intensity. 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 cleaning system, the metal filter cartridge damage assessment module, through the metal filter cartridge damage determination unit, can efficiently process detection images and, combined with data fusion technology from multiple sensors, accurately determine the degree of damage to the metal filter cartridge. This determination 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 uses a metal filter cartridge life prediction model constructed based on a long-short-term memory network to predict the remaining life of the metal filter cartridge and generate a corresponding health score. This model comprehensively considers multiple factors such as historical damage data of the metal filter cartridge, cleaning frequency of the cleaning module, and material grinding intensity, thereby comprehensively assessing the health of the metal filter cartridge. On the display interface of the PLC controller, users can clearly see the metal filter cartridge health score and replacement recommendations, which provides great convenience for 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 cleaning system.

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

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

[0073] The convolutional neural network is used to extract the edge features, crack distribution, and pore size change rate of the inspection image, and the damage degree of the metal filter cartridge is determined based on the set dynamic threshold. The dynamic threshold is adjusted in real time based on the set dynamic threshold model.

[0074] The damage index of the metal filter cartridge is obtained by weighted calculation based on 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 judged 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 judged to be moderately damaged, the sand mill is slowed down and local reinforcement cleaning is started; if the damage index is equal to the set third damage index threshold, the metal filter cartridge is judged to be slightly damaged, an early warning log is generated and the life attenuation parameter of the metal filter cartridge is marked.

[0076] The working principle of the above technical solution is as follows: first, a convolutional neural network is used to conduct an in-depth analysis of the detection image to extract key feature information, such as edge features, crack distribution, and pore size change rate. This information is an important basis for judging the degree of damage of 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 and improves the flexibility and accuracy of the judgment. At the same time, the system also integrates the data of the vibration sensor and pressure sensor configured on the metal filter cartridge. The vibration sensor can capture the abnormal vibration spectrum generated by the metal filter cartridge during operation, while the pressure sensor can detect the sudden drop in local pressure. These data are combined with the degree of damage obtained through image processing. The system combines the data and calculates the damage index of the metal filter cartridge through weighted calculation. According to the different damage indexes, the system will take corresponding treatment measures. If the damage index exceeds the set first damage index threshold, it means that the metal filter cartridge is seriously damaged. At this time, the system will immediately shut down the sand mill to prevent further damage and safety accidents. If the damage index is equal to the set second damage index threshold, it is judged as moderate damage. The system will reduce the operating speed of the sand mill and start a local reinforcement cleaning program to delay further development of the damage. If the damage index is equal to the set third damage index threshold, it is judged as slight damage. At this time, the system will generate an early warning log and mark the life attenuation parameters of the metal filter cartridge so that the operator can pay attention in time and take necessary maintenance measures.

[0077] The beneficial effects of the above technical solution are: by adopting the solution provided in this embodiment, the degree of damage of the metal filter cartridge can be accurately determined and dealt with in a timely manner, effectively avoiding the risk of decreased production efficiency and equipment failure due to filter damage; through the image processing technology of convolutional neural networks, the system can accurately capture the slight signs of damage to the metal filter cartridge, and combined with the real-time adjustment of the dynamic threshold, ensure the accuracy and flexibility of the judgment results; at the same time, the fusion application of multi-sensor data further enhances the system's comprehensive judgment ability on the degree of damage to the metal filter cartridge; according to different damage indexes, the system can automatically take corresponding treatment measures, which not only ensures production safety but also extends the service life of the equipment.

[0078] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A sand mill filter cleaning system, characterized in that: include: Sand mill body, detection module, cleaning module and control module; The sand mill body includes a feed port, a discharge pipe, a stirring spindle, a sleeve, a rotatable frame and a metal filter cartridge; The detection module includes an X-ray transmitter, an X-ray receiver, and an image transmission component, which is used to perform a 360° full coverage scanning inspection on the surface of the metal filter cartridge, generate and transmit the inspection image to the control module; The cleaning module includes a laser transmitter and a slide-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.

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

3. A 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 that is linked to the stirring spindle. The X-ray receiver is retractable and located inside the stirring spindle. The X-ray transmitter 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. A sand mill filter cleaning system according to claim 1, characterized in that: The image transmission component is used to send the detection image to the central control processor in the control module. The central control processor uses the image analysis algorithm to identify the damage and friction on the surface of the metal filter cartridge and locate the broken zirconium beads and material blockages at 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 blocking 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 chute-type moving device is configured on a rotatable frame and is connected to a PLC controller, and the entire device is movable. The chute-type moving device has a built-in position sensor for real-time feedback of the position coordinates of the laser transmitter to the PLC controller. The moving speed of the chute type moving device is adjusted based on 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 a targeted laser cleaning on the clogged area on the surface of the metal filter cartridge. The laser intensity of the laser emitter is adjusted based on the current output intensity of the PLC controller. The cleaning control command is obtained according to the judgment result output of the central control processor; the cleaning control command includes the starting position, action time and intensity parameters of the laser emitter; the judgment result is generated based on the set generation conditions according to the comparison result between the detection image and the set reference image.

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 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 is to scan the surface of the cleaned metal filter cartridge a second time through X-rays, and compare the secondary scanning results with the set initial inspection data. If the results do not meet the standards, the secondary cleaning process is triggered.

9. The sand mill filter cleaning system according to claim 1, characterized in that: It also includes a metal filter cartridge damage determination and assessment module; the metal filter cartridge damage determination and assessment module includes a metal filter cartridge damage determination unit and a metal filter cartridge health assessment unit; The metal filter cartridge damage determination unit is used to determine the damage degree of the metal filter cartridge based on the processing results of the detection image by the convolutional neural network and the fusion of the 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 metal filter cartridge life prediction model constructed based on the long short-term memory network according to the historical damage data of the metal filter cartridge, the cleaning frequency of the cleaning module and the material grinding intensity. The metal filter cartridge health score and replacement recommendations are displayed on the display interface of the PLC controller.

10. A sand mill filter cleaning system according to claim 9, characterized in that: Based on the processing results of the detection image by the convolutional neural network and the fusion of the acquired multi-sensor data, the damage degree of the metal filter cartridge is determined, including: The convolutional neural network is used to extract the edge features, crack distribution, and pore size change rate of the inspection image, and the damage degree of the metal filter cartridge is determined based on the set dynamic threshold. The dynamic threshold is adjusted in real time based on the set dynamic threshold model. The damage index of the metal filter cartridge is obtained by weighted calculation based on 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 judged 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 judged to be moderately damaged, the sand mill is slowed down and local reinforcement cleaning is started; if the damage index is equal to the set third damage index threshold, the metal filter cartridge is judged to be slightly damaged, an early warning log is generated and the life attenuation parameter of the metal filter cartridge is marked.

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