A system and method for large pellet cleaning within a disc pelletizer

Abstract

The present application relates to disc pelletizer technical field, disclose a kind of for the system and method of large pellet cleaning in disc pelletizer, its system includes: the cleaning device and control system connected with each other;Cleaning device includes filter screen, vibrator and extruder, filter screen is set in disc, vibrator is connected with disc, extruder is set in the top of disc;Control system includes: image acquisition module, acquires the pellet image when disc pelletizer operates;Image processing module determines the pellet quantity in pellet image;Screening determination module, compare the pellet quantity with preset pellet quantity, according to the comparison result, the large pellet with diameter greater than standard quality pellet is screened out;Cleaning control module, when large pellet is screened out, control vibrator and extruder clean large pellet.The present application not only improves the production efficiency of disc pelletizer, ensures the consistency of pellet quality, also improves working environment, reduces labor intensity.

Description

Technical Field

[0001] This invention relates to the field of disc pelletizing machine technology, and in particular to a system and method for cleaning large pellets inside a disc pelletizing machine. Background Technology

[0002] Disc pelletizers are widely used in the metallurgical industry. Their main function is to form fine iron ore powder or other metal powders into pellets of a certain strength and size through a pelletizing process, facilitating subsequent smelting processes. A disc pelletizer typically consists of an inclined disc; the material gradually gathers and forms pellets as the disc rotates. Due to the complexity of the pelletizing process, large pellets that do not meet quality standards may be generated during operation. If these large pellets are not cleaned up in a timely manner, they will affect the efficiency of the entire pelletizing process and the quality of the final product.

[0003] In traditional disc pelletizing machine operation, the cleaning of large pellets usually requires manual intervention, which not only increases the complexity of the operation but also results in low efficiency and a high risk of production interruption. Furthermore, manual cleaning makes it difficult to ensure consistent pellet quality, affecting the quality of the final product. Therefore, there is an urgent need for a system and method for cleaning large pellets within disc pelletizing machines to achieve effective cleaning. Summary of the Invention

[0004] The purpose of this invention is to provide a system and method for cleaning large pellets inside a disc pelletizer, in order to solve the above-mentioned problems.

[0005] This invention provides a system for cleaning large pellets inside a disc pelletizer, comprising:

[0006] A cleaning device and a control system, wherein the cleaning device is connected to the control system;

[0007] The cleaning device includes a filter screen, a vibrator, and a squeezer. The filter screen is disposed inside the disc, the vibrator is connected to the disc and is used to vibrate the disc, and the squeezer is disposed on the top of the disc and is used to clean large pellets inside the disc.

[0008] The control system includes:

[0009] The image acquisition module is used to acquire images of the pellets during the operation of the disc pelletizer;

[0010] An image processing module is used to analyze the ball image and determine the number of balls in the ball image;

[0011] The screening and determination module is used to compare the number of pellets with the preset number of pellets, and screen the pellets in the disc pelletizer according to the comparison result, and screen out the large pellets with a diameter greater than the standard mass pellets;

[0012] The cleaning control module is used to control the vibrator and extruder to clean the large pellets when they are screened out.

[0013] Preferably, a hydraulic cylinder is provided at the bottom of the filter screen. The hydraulic cylinder is installed at the bottom of the disc, and the output rod of the hydraulic cylinder passes through the disc and is connected to the filter screen. The hydraulic cylinder is used to control the position of the filter screen.

[0014] Preferably, the aperture of the filter screen is the diameter of a standard mass of pellets.

[0015] Preferably, the vibrator is connected to the base of the disc and to the cleaning control module. The vibrator is used to vibrate the disc according to the control of the cleaning control module to initially break up the large pellets.

[0016] Preferably, the extruder is disposed on the top of the disc, and the shape of the extrusion plate of the extruder matches the disc; the extruder is connected to the cleaning control module, and the extruder is used to perform secondary crushing of large pellets in the disc according to the control of the cleaning control module, so as to achieve cleaning of large pellets.

[0017] Preferably, the image processing module is used to analyze the ball image to determine the number of balls within the ball image, including:

[0018] The ball image is preprocessed, including grayscale conversion, noise reduction, and segmentation.

[0019] The preprocessed ball image is labeled using a connected component labeling algorithm to determine the number of balls in the ball image.

[0020] Preferably, the screening and determining module is used to compare the number of pellets with a preset number of pellets, and screen the pellets in the disc pelletizer according to the comparison result, screening out large pellets with a diameter greater than that of standard mass pellets, including:

[0021] The screening determination module is connected to the hydraulic cylinder;

[0022] The number of pellets is compared with the preset number of pellets. If the number of pellets is greater than or equal to the preset number of pellets, it is determined that the pellets in the disc pelletizer need to be screened.

[0023] The hydraulic cylinder is controlled to move the filter screen upwards, separating out large pellets with a diameter greater than the standard mass pellets.

[0024] Preferably, the cleaning control module is used to control the vibrator and extruder to clean the large pellets when they are screened out, including:

[0025] When large pellets are screened out, the vibration frequency and vibration amplitude of the vibrator are set.

[0026] The vibration of the disk is controlled according to the vibration frequency and vibration amplitude to initially break up the large pellets;

[0027] After a set time, the extruder is controlled to clean the large pellets.

[0028] Preferably, the cleaning control module controls the extruder to clean the large pellets, including:

[0029] The position of the filter screen and the position of the extruder are detected to determine the distance between the filter screen and the extruder;

[0030] The pressing distance of the extruder is set according to the distance described above;

[0031] The extruder is pressed down according to the pressing distance to crush the large pellets.

[0032] After a preset time, the extruder is controlled to move upward and the vibrator is controlled to vibrate, so as to finally crush the large pellets.

[0033] This invention also discloses a method for cleaning large pellets inside a disc pelletizer, applied to the aforementioned system for cleaning large pellets inside a disc pelletizer, comprising:

[0034] Acquire images of pellets during the operation of the disc pelletizer;

[0035] The number of balls in the ball image is determined by analyzing the ball image.

[0036] The number of pellets is compared with the preset number of pellets. Based on the comparison result, the pellets in the disc pelletizer are screened. If the number of pellets is greater than or equal to the preset number of pellets, the large pellets with a diameter greater than that of the standard mass pellets are screened out.

[0037] When large pellets are screened out, the vibrator and extruder are controlled to clean the large pellets.

[0038] Compared with the prior art, the beneficial effects of the present invention are that the cleaning method of the present invention not only improves the production efficiency of the disc pelletizing machine and ensures the consistency of pellet quality, but also improves the working environment, reduces labor intensity, and has the advantages of energy saving, environmental protection, and easy maintenance and management.

[0039] The automated cleaning system of this invention can quickly and effectively remove large pellets from the disc pelletizer, avoiding the time-consuming and labor-intensive manual cleaning and thus improving production efficiency. This system can accurately screen out large pellets with a diameter greater than the standard mass and clean them through vibration and extrusion, helping to maintain product quality consistency and reduce the production of defective products. Traditional cleaning methods may require workers to be directly exposed to high temperatures or harmful environments, while the automated cleaning system reduces direct contact, lowers labor intensity, and improves the working environment. Through image acquisition and image processing modules, the system can intelligently identify and analyze the quantity and size of the pellets, achieving precise control and improving the level of operational intelligence. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the cleaning device in a system for cleaning large pellets inside a disc pelletizer according to the present invention.

[0042] Figure 2 This is a functional block diagram of the control system in a system for cleaning large pellets inside a disc pelletizer according to the present invention;

[0043] Figure 3 This is a schematic flowchart of a method for cleaning large pellets inside a disc pelletizer according to the present invention.

[0044] The components include: 1. disc; 2. filter screen; 3. vibrator; 4. extruder; and 5. hydraulic cylinder. Detailed Implementation

[0045] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0046] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0047] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0048] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] like Figures 1-2 As shown, the present invention provides a system for cleaning large pellets inside a disc pelletizer, comprising:

[0050] The cleaning device and control system are connected together.

[0051] The cleaning device includes a filter screen 2, a vibrator 3, and an extruder 4. The filter screen 2 is set inside the disc 1, the vibrator 3 is connected to the disc 1 and is used to vibrate the disc 1, and the extruder 4 is set on the top of the disc 1 and is used to clean the large pellets inside the disc 1.

[0052] The control system includes: an image acquisition module for acquiring images of pellets during the operation of the disc pelletizer; an image processing module for analyzing the pellet images and determining the number of pellets within the images; a screening determination module for comparing the number of pellets with a preset number of pellets and screening the pellets in the disc pelletizer based on the comparison results, separating out large pellets with a diameter greater than the standard mass; and a cleaning control module for controlling the vibrator 3 and the extruder 4 to clean the large pellets when they are screened out.

[0053] In some embodiments of this application, a hydraulic cylinder 5 is provided at the bottom of the filter screen 2. The hydraulic cylinder 5 is installed at the bottom of the disc 1, and the output rod of the hydraulic cylinder 5 passes through the disc 1 and is connected to the filter screen 2. The hydraulic cylinder 5 is used to control the position of the filter screen 2.

[0054] A hydraulic cylinder 5 is installed at the bottom of the filter screen 2. The hydraulic cylinder 5 is mounted on the bottom of the disc 1, and its output rod passes through the disc 1 and connects to the filter screen 2. The function of the hydraulic cylinder 5 is to control the position of the filter screen 2. By extending and retracting the hydraulic cylinder 5, the filter screen 2 can be raised and lowered, facilitating screen replacement or cleaning. This design makes the adjustment of the filter screen 2 flexible and efficient, ensuring the continuity and stability of the filtration process. Figure 1 This is a schematic diagram illustrating how a hydraulic press raises a filter screen to screen large pellets.

[0055] In some embodiments of this application, the aperture of the filter screen 2 is the diameter of a standard mass pellet.

[0056] The aperture of filter screen 2 is designed to match the diameter of standard quality pellets, ensuring that only pellets meeting specific size requirements can pass through the screen, effectively separating out substandard materials. This design allows filter screen 2 to efficiently screen out pellets that meet production standards while intercepting excessively large pellets, ensuring consistent and reliable product quality. In this way, only appropriately sized pellets are ensured to enter subsequent production processes, thereby improving the efficiency and output quality of the entire production process.

[0057] In some embodiments of this application, the vibrator 3 is connected to the base of the disc 1 and to the cleaning control module. The vibrator 3 is used to vibrate the disc 1 according to the control of the cleaning control module to initially break up the large pellets.

[0058] Vibrator 3 is tightly connected to the base of disc 1, ensuring efficient vibration transmission. Vibrator 3 itself is electrically connected to the cleaning control module, allowing for precise control of the entire crushing process. When the cleaning control module issues a command, vibrator 3 starts working, generating vibrational energy. This vibrational energy is transmitted to disc 1 through the base, causing disc 1 to vibrate. The vibration of disc 1 acts on the large pellets placed on it; through the impact force generated by the high-frequency vibration and the effect of gravity, cracks begin to appear on the surface of the large pellets, causing them to gradually break. This vibration crushing method can effectively perform preliminary crushing of large pellets, laying the foundation for further processing and treatment.

[0059] In some embodiments of this application, the extruder 4 is disposed on the top of the disc 1, and the shape of the extrusion plate of the extruder 4 matches that of the disc 1; the extruder 4 is connected to the cleaning control module, and the extruder 4 is used to perform secondary crushing of the large pellets in the disc 1 according to the control of the cleaning control module, so as to achieve the cleaning of the large pellets.

[0060] The extruder 4 is positioned at the top of the disc 1, its extrusion plate shape perfectly matching the internal contours of the disc 1. This design ensures that the extruder 4 can efficiently contact the material within the disc 1. Connected to the cleaning control module, the extruder 4 responds to commands issued by the module. When large pellets within the disc 1 need to be cleaned, the extruder 4 activates, applying pressure to these larger pellets for effective secondary crushing. This process not only helps reduce the size of large pellets, ensuring their smooth passage through subsequent processing steps, but also improves the overall cleaning efficiency of the system, ensuring smooth production. Through this intelligent control and coordinated mechanical operation, precise material handling can be achieved, thereby improving the quality and efficiency of the entire production process.

[0061] In some embodiments of this application, the image processing module is used to analyze the ball image to determine the number of balls in the ball image, including: preprocessing the ball image, the preprocessing including grayscale processing, noise reduction processing and segmentation processing; and applying a connected component labeling algorithm to label the preprocessed ball image to determine the number of balls in the ball image.

[0062] The image processing module analyzes the ball images to accurately determine the specific number of balls in the image. This process first involves a series of preprocessing steps to optimize the image data for subsequent analysis. Preprocessing steps include grayscale conversion, which transforms the color image into a grayscale image, simplifying the data and reducing computational complexity. Next is denoising, which aims to remove random noise from the image that may affect ball identification and counting. Finally, segmentation divides the image into multiple regions, each representing a potential ball, laying the foundation for subsequent ball identification and counting.

[0063] After preprocessing, the image processing module applies the connected component labeling algorithm to further analyze the preprocessed ball image. Connected component labeling is a technique for image segmentation that identifies interconnected pixel regions in an image and labels them as individual entities. In the context of the ball image, this means the algorithm identifies all connected pixel regions that represent individual balls. In this way, the algorithm can distinguish and label each ball in the image.

[0064] Ultimately, the image processed by the connected component labeling algorithm clearly displays all identified pellets, each assigned a unique identifier. The image processing module then counts the number of these identifiers to determine the total number of pellets in the image. This process not only improves the accuracy of pellet counting but also significantly reduces the time and labor intensity required for manual counting, providing strong support for the automation and optimization of the pellet production process.

[0065] In some embodiments of this application, the screening determination module is used to compare the number of pellets with a preset number of pellets, and screen the pellets in the disc 1 pelletizer according to the comparison result, screening out large pellets with a diameter greater than the standard mass pellets. The process includes: the screening determination module is connected to the hydraulic cylinder 5; comparing the number of pellets with the preset number of pellets, and if the number of pellets is greater than or equal to the preset number of pellets, determining that the pellets in the disc 1 pelletizer need to be screened; controlling the hydraulic cylinder 5 to move the filter screen 2 upward, and screening out the large pellets with a diameter greater than the standard mass pellets.

[0066] The screening and determination module is a crucial component of the system. Its main function is to monitor and analyze the number of pellets produced by the disc pelletizer in real time. By accurately comparing the number with a preset number of pellets, this module can intelligently determine whether the output of pellets meets the predetermined standards. When the number of pellets reaches or exceeds the preset value, the screening and determination module will immediately start the screening program to ensure that the quality of the pellets produced by the disc pelletizer meets the requirements.

[0067] To achieve this function, the screening determination module is closely connected to the hydraulic cylinder 5. Once screening is determined to be necessary, the module sends a command to the hydraulic cylinder 5, which then responds and begins operation. The movement of the hydraulic cylinder 5 causes the filter screen 2 to move upward, thereby effectively screening the pellets within the disc pelletizer 1. During this process, all large pellets exceeding the standard mass are screened out, ensuring that only pellets meeting the quality requirements can continue into the production process.

[0068] This automated screening process not only improves production efficiency but also ensures the consistency and reliability of product quality. Through precise control and real-time monitoring, the coordinated operation of the screening determination module and hydraulic cylinder 5 provides strong technical support for the efficient operation of the disc 1 pelletizer.

[0069] In some embodiments of this application, the cleaning control module is used to control the vibrator 3 and the extruder 4 to clean the large pellets when they are screened out, including: setting the vibration frequency and vibration amplitude of the vibrator 3 when the large pellets are screened out; controlling the vibration of the disc 1 according to the vibration frequency and vibration amplitude to initially crush the large pellets; and controlling the extruder 4 to clean the large pellets after a set time.

[0070] The cleaning control module is used to handle oversized pellets during the screening process. When a large pellet is detected, the module automatically activates and adjusts the operating parameters of vibrator 3, including vibration frequency and amplitude, to meet the specific crushing requirements of the large pellet. Vibrator 3 then applies vibration to disc 1 according to these parameters, thereby performing preliminary crushing of the large pellet.

[0071] After the set vibration treatment time, the cleaning control module activates the extruder 4 to further clean the initially crushed large pellets. The intervention of the extruder 4 ensures that the large pellets are thoroughly crushed or cleaned, preventing them from clogging subsequent screening equipment or affecting screening efficiency. The entire cleaning process is precisely controlled by the cleaning control module, ensuring the continuity and efficiency of the screening operation.

[0072] In some embodiments of this application, the cleaning control module controls the extruder 4 to clean the large pellets, including: detecting the position of the filter screen 2 and the position of the extruder 4, and determining the distance between the filter screen 2 and the extruder 4; setting the pressing distance of the extruder 4 according to the distance; controlling the extruder 4 to press down according to the pressing distance to crush the large pellets; after a preset time, controlling the extruder 4 to move upward and controlling the vibrator 3 to vibrate to finally crush the crushed large pellets.

[0073] like Figure 3 As shown, the present invention also discloses a method for cleaning large pellets inside a disc pelletizer, applied to the aforementioned system for cleaning large pellets inside a disc pelletizer, comprising:

[0074] Images of pellets are captured during the operation of the disc pelletizer.

[0075] The number of balls in the ball image is determined by analyzing the image.

[0076] The number of pellets is compared with the preset number of pellets. Based on the comparison result, the pellets in the disc pelletizer are screened. If the number of pellets is greater than or equal to the preset number of pellets, the large pellets with a diameter greater than the standard mass pellets are screened out.

[0077] When large pellets are screened out, the vibrator and extruder are controlled to clean the large pellets.

[0078] This invention relates to a method for cleaning large pellets inside a disc pelletizer, as detailed below:

[0079] Acquiring images of pellets during operation of the disc pelletizer: First, image acquisition devices installed on the disc pelletizer capture real-time images of the pellets inside the pelletizer. These image acquisition devices can be high-resolution cameras, positioned to fully cover the interior area of ​​the pelletizer.

[0080] The number of balls in the ball image is determined by analyzing the image image: image processing techniques, such as edge detection, morphological processing and image segmentation, are used to analyze and process the acquired image to identify the balls in the image and calculate the total number of balls.

[0081] The number of pellets is compared with the preset number of pellets, and the pellets in the disc pelletizer are screened based on the comparison result: the analyzed number of pellets is compared with the preset target number of pellets. If the number of pellets is greater than or equal to the preset number of pellets, it indicates that there are too many pellets in the pelletizer, and screening is required. At this time, the screening device is started to screen out the large pellets with a diameter greater than the standard mass pellets.

[0082] When large pellets are screened out, the vibrator and extruder are controlled to clean them: once a large pellet is detected as being screened out, the system automatically activates the vibrator and extruder. The vibrator breaks the large pellets under the combined forces of gravity and vibration through vibration; the extruder applies pressure to these large pellets, breaking them down or compressing them into smaller sizes so that they can be reintroduced into the pelletizing machine for the pelletizing process.

[0083] Through the above steps, the method of the present invention can effectively clean large pellets inside the disc pelletizer, ensuring the normal operation of the pelletizer and the stability of pellet quality.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

[0085] The system provided in the above embodiments is only illustrated by the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the modules or steps in the embodiments of the present invention can be further decomposed or combined. For example, the modules in the above embodiments can be merged into one module, or further divided into multiple sub-modules to complete all or part of the functions described above. The names of the modules and steps involved in the embodiments of the present invention are only for distinguishing the various modules or steps and are not considered as an improper limitation of the present invention.

[0086] Those skilled in the art will recognize that the modules and method steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. The programs corresponding to the software modules and method steps can be placed in random access memory (RAM), main memory, read-only memory (ROM), electrically erasable programmable ROM, registers, hard disks, removable disks, CD-ROMs, or any other form of storage medium known in the art. To clearly illustrate the interchangeability of electronic hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in electronic hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the invention.

Claims

1. A system for cleaning large pellets inside a disc pelletizer, characterized in that, include: A cleaning device and a control system, wherein the cleaning device is connected to the control system; The cleaning device includes a filter screen, a vibrator, and an extruder. The filter screen is disposed inside a disc, and the vibrator is connected to the disc and is used to vibrate the disc. The extruder is disposed at the top of the disc and is used to clean large clumps inside the disc. A hydraulic cylinder is disposed at the bottom of the filter screen and is installed at the bottom of the disc. The output rod of the hydraulic cylinder passes through the disc and is connected to the filter screen. The hydraulic cylinder is used to control the position of the filter screen. The control system includes: The image acquisition module is used to acquire images of the pellets during the operation of the disc pelletizer; The image processing module is used to analyze the ball image and determine the number of balls in the ball image, including: preprocessing the ball image, the preprocessing including grayscale processing, noise reduction processing and segmentation processing; and applying a connected component labeling algorithm to label the preprocessed ball image to determine the number of balls in the ball image. A screening determination module is used to compare the number of pellets with a preset number of pellets, and screen the pellets in the disc pelletizer according to the comparison result, screening out large pellets with a diameter greater than the standard mass pellets. The module includes: connecting the screening determination module to the hydraulic cylinder; comparing the number of pellets with the preset number of pellets; if the number of pellets is greater than or equal to the preset number of pellets, determining that screening of the pellets in the disc pelletizer is necessary; controlling the hydraulic cylinder to move the filter screen upwards, screening out the large pellets with a diameter greater than the standard mass pellets. The cleaning control module is used to control the vibrator and extruder to clean the large pellets when they are screened out. The module includes: setting the vibration frequency and amplitude of the vibrator when large pellets are screened out; controlling the vibration of the disc according to the vibration frequency and amplitude to initially crush the large pellets; and controlling the extruder to clean the large pellets after a set time.

2. The system for cleaning large pellets inside a disc pelletizer according to claim 1, characterized in that, The aperture of the filter screen is the same as the diameter of a standard mass of pellets.

3. The system for cleaning large pellets inside a disc pelletizer according to claim 2, characterized in that, The vibrator is connected to the base of the disc and to the cleaning control module. The vibrator is used to vibrate the disc according to the control of the cleaning control module to initially break up the large pellets.

4. The system for cleaning large pellets inside a disc pelletizer according to claim 3, characterized in that, The extruder is located on the top of the disc, and the shape of the extrusion plate of the extruder matches the disc. The extruder is connected to the cleaning control module, and the extruder is used to perform secondary crushing of large pellets in the disc according to the control of the cleaning control module, so as to achieve the cleaning of large pellets.

5. The system for cleaning large pellets inside a disc pelletizer according to claim 4, characterized in that, The cleaning control module controls the extruder to clean the large pellets, including: The position of the filter screen and the position of the extruder are detected to determine the distance between the filter screen and the extruder; The pressing distance of the extruder is set according to the distance described above; The extruder is pressed down according to the pressing distance to crush the large pellets. After a preset time, the extruder is controlled to move upward and the vibrator is controlled to vibrate, so as to finally crush the large pellets.

6. A method for cleaning large pellets inside a disc pelletizer, applied to the system for cleaning large pellets inside a disc pelletizer as described in any one of claims 1-5, characterized in that, include: Acquire images of pellets during the operation of the disc pelletizer; The number of balls in the ball image is determined by analyzing the ball image. The number of pellets is compared with the preset number of pellets. Based on the comparison result, the pellets in the disc pelletizer are screened. If the number of pellets is greater than or equal to the preset number of pellets, the large pellets with a diameter greater than that of the standard mass pellets are screened out. When large pellets are screened out, the vibrator and extruder are controlled to clean the large pellets.

Images