System and method for cleaning large pellets in disc pelletizer

Abstract

The invention relates to the technical field of disc balling machines, and discloses a system and method for cleaning large pellets in a disc balling machine, and the system comprises a cleaning device and a control system which are connected with each other; the cleaning device comprises a filter sieve, a vibrator and a squeezer, the filter sieve is arranged in the disc, the vibrator is connected with the disc, and the squeezer is arranged at the top of the disc; the control system comprises an image acquisition module for acquiring pellet images during operation of the disc pelletizer; the image processing module is used for determining the number of pellets in the pellet image; the screening determining module is used for comparing the number of the pellets with the preset number of the pellets and screening out the large pellets with the diameters larger than the standard mass of the pellets according to the comparison result; and the cleaning control module is used for controlling the vibrator and the squeezer to clean the large pellets when the large pellets are screened out. According to the invention, the production efficiency of the disc pelletizer is improved, the consistency of pellet quality is ensured, the working environment is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of disc pelletizing machines, and in particular to a system and method for cleaning large pellets in a disc pelletizing machine. Background Art

[0002] Disc pelletizing machine is a kind of equipment widely used in metallurgical industry. Its main function is to make fine iron ore powder or other metal powder into pellets with certain strength and particle size through the pelletizing process, so as to facilitate the subsequent smelting process. Disc pelletizing machine usually consists of an inclined disc. The material gradually gathers and forms pellets under the rotation of the disc. Due to the complexity of the pelletizing process, the disc pelletizing machine may produce large pellets that do not meet the quality standards during operation. If these large pellets are not cleaned up in time, it will affect the efficiency of the entire pelletizing process and the quality of the final product.

[0003] In the operation process of the traditional disc pelletizer, the cleaning of large pellets usually requires manual intervention, which not only increases the complexity of the operation, but also is inefficient and easily causes production interruptions. In addition, it is difficult to ensure the consistency of the quality of the pellets during the manual cleaning process, which affects the quality of the final product. Therefore, there is an urgent need for a system and method for cleaning large pellets in a disc pelletizer to achieve the cleaning of large pellets. Summary of the invention

[0004] The object of the present invention is to provide a system and method for cleaning large pellets in a disc pelletizing machine, aiming to solve the above-mentioned problems.

[0005] The present invention provides a system for cleaning large pellets in a disc pelletizing machine, comprising:

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

[0007] The cleaning device comprises a filter screen, a vibrator and an extruder, wherein the filter screen is arranged in the disc, the vibrator is connected to the disc, the vibrator is used to vibrate the disc, and the extruder is arranged on the top of the disc to clean the large pellets in the disc;

[0008] The control system comprises:

[0009] An image acquisition module is used to acquire the pellet images when the disc pelletizing machine is running;

[0010] An image processing module, used for analyzing the pellet image and determining the number of pellets in the pellet image;

[0011] 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 pelletizing machine according to the comparison result, and screen out large pellets with diameters larger than standard quality pellets;

[0012] The cleaning control module is used to control the vibrator and the squeezer to clean the large pellets when the large pellets 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, an output rod of the hydraulic cylinder passes through the disc and is connected to the filter screen, and the hydraulic cylinder is used to control the position of the filter screen.

[0014] Preferably, the pore size of the filter screen is the diameter of a standard mass pellet.

[0015] Preferably, the vibrator is connected to the base of the disc, and the vibrator is connected to the cleaning control module, and the vibrator is used to vibrate the disc according to the control of the cleaning control module to perform preliminary crushing of large pellets.

[0016] Preferably, the extruder is arranged 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 the large pellets in the disc according to the control of the cleaning control module to achieve cleaning of the large pellets.

[0017] Preferably, the image processing module is used to analyze the pellet image to determine the number of pellets in the pellet image, including:

[0018] Preprocessing the pellet image, wherein the preprocessing includes grayscale processing, denoising processing and segmentation processing;

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

[0020] Preferably, the screening determination module is used to compare the number of pellets with a preset number of pellets, screen the pellets in the disc pelletizing machine according to the comparison result, and screen out large pellets with a diameter larger than that of standard quality pellets, including:

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

[0022] 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 the pellets in the disc pelletizing machine need to be screened;

[0023] The hydraulic cylinder is controlled to operate, the filter screen is moved upward, and large pellets having a diameter larger than that of standard quality pellets are screened out.

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

[0025] When screening out large pellets, setting the vibration frequency and vibration amplitude of the vibrator;

[0026] Controlling the vibration of the disc according to the vibration frequency and vibration amplitude to preliminarily crush the large pellets;

[0027] After the set time has passed, 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] Detecting the position of the filter screen and the position of the squeezer, and determining the distance between the filter screen and the squeezer;

[0030] Setting the pressing distance of the extruder according to the distance;

[0031] Control the downward pressure of the extruder according to the downward pressure distance to extrude and 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 crushed large pellets.

[0033] The present invention also discloses a method for cleaning large pellets in a disc pelletizing machine, which is applied to the above-mentioned system for cleaning large pellets in a disc pelletizing machine, comprising:

[0034] Collect pellet images when the disc pelletizer is running;

[0035] Analyzing the pellet image to determine the number of pellets in the pellet image;

[0036] The number of pellets is compared with the preset number of pellets, and the pellets in the disc pelletizing machine are screened according to the comparison result. If the number of pellets is greater than or equal to the preset number of pellets, large pellets with a diameter greater than that of standard quality pellets are screened out;

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

[0038] Compared with the prior art, the beneficial effect of the present invention is that the cleaning method of the present invention not only improves the production efficiency of the disc pelletizing machine and ensures the consistency of the 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] Through the automated cleaning system of the present invention, large pellets in the disc pelletizing machine can be quickly and effectively removed, avoiding the time-consuming and labor-intensive manual cleaning, thereby improving production efficiency. The system can accurately screen out large pellets with diameters larger than standard quality pellets, and clean them by vibration and extrusion, which helps to maintain the quality consistency of the product and reduce the production of unqualified products. Traditional cleaning methods may require workers to directly contact high temperatures or harmful environments, while automated cleaning systems can reduce workers' direct contact, reduce labor intensity, and improve the working environment. Through the image acquisition module and the image processing module, the system can intelligently identify and analyze the number and size of pellets, achieve precise control, and improve the level of intelligent operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0041] Figure 1 It is a structural schematic diagram of a cleaning device in a system for cleaning large pellets in a disc pelletizing machine according to the present invention;

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

[0043] Figure 3 The present invention is a schematic flow diagram of a method for cleaning large pellets in a disc pelletizing machine.

[0044] Among them, 1. disc; 2. filter screen; 3. vibrator; 4. extruder; 5. hydraulic cylinder. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0046] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

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

[0048] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] like Figure 1-Figure 2 As shown, the present invention provides a system for cleaning large pellets in a disc pelletizing machine, comprising:

[0050] A cleaning device and a control system, wherein the cleaning device is connected with the control system.

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

[0052] The control system includes: an image acquisition module, which is used to collect the pellet image when the disc pelletizing machine is running; an image processing module, which is used to analyze the pellet image and determine the number of pellets in the pellet image; a screening determination module, which is used to compare the number of pellets with the preset number of pellets, and screen the pellets in the disc 1 pelletizing machine according to the comparison result, and screen out large pellets with a diameter larger than that of the standard quality pellets; a cleaning control module, which is used to control the vibrator 3 and the extruder 4 to clean the large pellets when the large pellets are screened out.

[0053] In some embodiments of the present application, a hydraulic cylinder 5 is provided at the bottom of the filter screen 2, and the hydraulic cylinder 5 is installed at the bottom of the disc 1. 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 provided at the bottom of the filter screen 2, and the hydraulic cylinder 5 is installed at the bottom of the disc 1. The output rod of the hydraulic cylinder 5 penetrates 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. Through the telescopic action of the hydraulic cylinder 5, the filter screen 2 can be raised and lowered, so that the screen can be replaced or cleaned conveniently. This design makes the adjustment of the filter screen 2 flexible and efficient, ensuring the continuity and stability of the filtering process. Figure 1 This is a schematic diagram of the hydraulic press operating to raise the filter screen to screen large pellets.

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

[0056] The aperture of the filter screen 2 is designed to match the diameter of standard quality pellets, ensuring that only pellets that meet specific size requirements can pass through the screen, thereby effectively separating unqualified materials. This design enables the filter screen 2 to efficiently screen out pellets that meet production standards, while intercepting oversized pellets, ensuring the consistency and reliability of product quality. In this way, it can be ensured that only pellets of appropriate size enter the subsequent production process, thereby improving the efficiency and output quality of the entire production process.

[0057] In some embodiments of the present application, the vibrator 3 is connected to the base of the disc 1, and the vibrator 3 is connected 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 perform preliminary crushing of large pellets.

[0058] The vibrator 3 is closely connected to the base of the disc 1, ensuring the high efficiency of vibration transmission. The vibrator 3 itself is electrically connected to the cleaning control module, so that the entire crushing process can be precisely controlled. When the cleaning control module issues an instruction, the vibrator 3 starts working and generates vibration energy. This vibration energy is transmitted to the disc 1 through the base, causing the disc 1 to vibrate. The vibration of the disc 1 acts on the large pellets placed on it. The impact force and gravity generated by the high-frequency vibration cause cracks to appear on the surface of the large pellets and gradually break. This vibration crushing method can effectively carry out preliminary crushing of large pellets, laying the foundation for subsequent further processing and treatment.

[0059] In some embodiments of the present application, the extruder 4 is arranged on the top of the disc 1, and the shape of the extrusion plate of the extruder 4 matches 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 to achieve cleaning of the large pellets.

[0060] Extruder 4 is placed at the top of disc 1, and the shape of the extrusion plate is designed to perfectly match the inner contour of disc 1 box. This design ensures that extruder 4 can efficiently contact the material in disc 1. Extruder 4 can respond to the instructions issued by the module through the connection with the cleaning control module. When it is necessary to clean the large pellets in disc 1, extruder 4 will start to apply pressure to these larger pellets for effective secondary crushing. This process not only helps to reduce the size of large pellets and ensure that they can pass through the subsequent processing flow smoothly, but also improves the cleaning efficiency of the entire system and ensures the smooth progress of the production process. Through this intelligent control and mechanical collaborative operation, accurate material processing can be achieved, thereby improving the quality and efficiency of the entire production process.

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

[0062] The image processing module is used to analyze the pellet images to accurately determine the specific number of pellets in the image. The process first involves a series of preprocessing steps on the pellet images to optimize the image data for subsequent analysis. The preprocessing steps include grayscale processing, which converts the color image into a grayscale image, thereby simplifying the data and reducing computational complexity. Next is the denoising process, which aims to eliminate random noise in the image that may affect the identification and counting of pellets. Finally, the segmentation process divides the image into multiple regions, each representing a potential pellet, laying the foundation for subsequent pellet identification and counting.

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

[0064] Ultimately, the image processed by the connected component labeling algorithm will clearly show all identified pellets, each of which is assigned a unique identifier. The image processing module then counts the number of these identifiers to obtain the total number of pellets in the pellet image. This process not only improves the accuracy of pellet counting, but also greatly 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 the present application, the screening determination module is used to compare the number of pellets with the preset number of pellets, screen the pellets in the disc 1 pelletizing machine according to the comparison results, and screen out large pellets with diameters larger than the standard mass pellets, including: the screening determination module is connected to the hydraulic cylinder 5; 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 1 pelletizing machine need to be screened; the hydraulic cylinder 5 is controlled to operate, the filter screen 2 is moved up, and the large pellets with diameters larger than the standard mass pellets are screened out.

[0066] The screening 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 1 pelletizer in real time. By accurately comparing with the preset number of pellets, the module can intelligently determine whether the output of the pellets has reached the established standard. When the number of pellets reaches or exceeds the preset value, the screening determination module will immediately start the screening process to ensure that the quality of the pellets produced by the disc 1 pelletizer meets the requirements.

[0067] In order to achieve this function, the screening determination module is closely connected with the hydraulic cylinder 5. Once it is determined that screening is required, the module will send a command to the hydraulic cylinder 5, and the hydraulic cylinder 5 will respond and start working. The operation of the hydraulic cylinder 5 drives the filter screen 2 to move up, thereby effectively screening the pellets in the disc 1 pelletizer. In this process, all large pellets with diameters exceeding the standard quality pellets will be screened out to ensure that only pellets that meet the quality requirements can continue to enter 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 work of the screening determination module and the hydraulic cylinder 5 provides strong technical support for the efficient operation of the disc 1 pelletizing machine.

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

[0070] The cleaning control module is used to handle oversized pellets during the screening process. When large pellets are detected, the module automatically starts to adjust the operating parameters of the vibrator 3, including the vibration frequency and vibration amplitude, to meet the specific crushing requirements of the large pellets. The vibrator 3 then applies vibrations to the disc 1 according to these parameters to perform preliminary crushing of the large pellets.

[0071] After the set vibration treatment time, the cleaning control module will activate the squeezer 4 to further clean the large pellets that have been initially crushed. The intervention of the squeezer 4 can ensure that the large pellets are completely crushed or cleaned to prevent them from clogging the subsequent screening equipment or affecting the screening efficiency. The entire cleaning process is precisely controlled by the cleaning control module to ensure the continuity and efficiency of the screening operation.

[0072] In some embodiments of the present 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 downward pressing distance of the extruder 4 according to the distance; controlling the extruder 4 to press down according to the downward pressing distance to squeeze and crush the large pellets; after a preset time, controlling the extruder 4 to move up, and controlling the vibrator 3 to vibrate, so as to finally crush the crushed large pellets.

[0073] like Figure 3 As shown, the present invention also discloses a method for cleaning large pellets in a disc pelletizing machine, which is applied to the above-mentioned system for cleaning large pellets in a disc pelletizing machine, comprising:

[0074] Capture images of pellets while the disc pelletizer is in operation.

[0075] The pellet image is analyzed to determine the number of pellets in the pellet image.

[0076] The number of pellets is compared with the preset number of pellets, and the pellets in the disc pelletizing machine are screened according to the comparison result. If the number of pellets is greater than or equal to the preset number of pellets, large pellets with diameters greater than standard quality pellets are screened out.

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

[0078] The present invention relates to a method for cleaning large pellets in a disc pelletizing machine, which is specifically as follows:

[0079] Collecting images of pellets when the disc pelletizer is running: First, the image acquisition device installed on the disc pelletizer captures the image information of the pellets inside the pelletizer in real time. These image acquisition devices can be high-resolution cameras, which are arranged in a position that can fully cover the internal area of ​​the pelletizer.

[0080] Analyze the pellet image to determine the number of pellets in the pellet image: Analyze and process the collected image through image processing techniques, such as edge detection, morphological processing, and image segmentation, so as to identify the pellets in the image and calculate the total number of pellets.

[0081] The number of pellets is compared with the preset number of pellets, and the pellets in the disc pelletizer are screened according to the comparison result: the number of pellets obtained by analysis 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 means that there are too many pellets in the pelletizer and screening is required. At this time, the screening device is started to screen out 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: When the large pellets are detected to be screened out, the system automatically activates the vibrator and extruder. The vibrator breaks the large pellets under the dual forces of gravity and vibration through vibration; the extruder applies pressure to these large pellets to break or press them into smaller sizes so that they can re-enter the pelletizing machine for the pelletizing process.

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

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

[0085] The system provided in the above embodiment 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 decomposed or combined. For example, the modules in the above embodiment can be combined 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 modules or steps, and are not regarded as improper limitations of the present invention.

[0086] Those skilled in the art should be able to appreciate that the modules and method steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, computer software or a combination of the two, and the programs corresponding to the software modules and method steps can be placed in random access memory (RAM), internal 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 technical field. In order to clearly illustrate the interchangeability of electronic hardware and software, the composition and steps of each example have been generally described in the above description according to the function. Whether these functions are performed 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 to exceed the scope of the present invention.

Claims

1. A system for cleaning large pellets in a disc pelletizing machine, characterized in that: include: A cleaning device and a control system, wherein the cleaning device is connected to the control system; The cleaning device comprises a filter screen, a vibrator and an extruder, wherein the filter screen is arranged in the disc, the vibrator is connected to the disc, the vibrator is used to vibrate the disc, and the extruder is arranged on the top of the disc to clean the large pellets in the disc; The control system comprises: An image acquisition module is used to acquire the pellet images when the disc pelletizing machine is running; An image processing module, used for analyzing the pellet image and determining the number of pellets in the pellet 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 pelletizing machine according to the comparison result, and screen out large pellets with diameters larger than standard quality pellets; The cleaning control module is used to control the vibrator and the squeezer to clean the large pellets when the large pellets are screened out.

2. The system for cleaning large pellets in a disc pelletizing machine according to claim 1, characterized in that: A hydraulic cylinder is provided at the bottom of the filter screen, and the hydraulic cylinder is installed at the bottom of the disc. An output rod of the hydraulic cylinder penetrates the disc and is connected to the filter screen. The hydraulic cylinder is used to control the position of the filter screen.

3. The system for cleaning large pellets in a disc pelletizing machine according to claim 2, characterized in that: The aperture of the filter screen is the diameter of a standard mass pellet.

4. The system for cleaning large pellets in a disc pelletizing machine according to claim 3, characterized in that: The vibrator is connected to the base of the disc, and the vibrator is connected 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 the large pellets.

5. The system for cleaning large pellets in a disc pelletizing machine according to claim 4, characterized in that: The extruder is arranged 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 on the large pellets in the disc according to the control of the cleaning control module to achieve cleaning of the large pellets.

6. The system for cleaning large pellets in a disc pelletizing machine according to claim 5, characterized in that: The image processing module is used to analyze the pellet image to determine the number of pellets in the pellet image, including: Preprocessing the pellet image, wherein the preprocessing includes grayscale processing, denoising processing and segmentation processing; The preprocessed pellet image is labeled using a connected component labeling algorithm to determine the number of pellets in the pellet image.

7. The system for cleaning large pellets in a disc pelletizing machine according to claim 6, characterized in that: The screening determination module is used to compare the number of pellets with the preset number of pellets, screen the pellets in the disc pelletizing machine according to the comparison result, and screen out large pellets with a diameter larger than that of standard quality pellets, including: The screening determination module is connected 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 the pellets in the disc pelletizing machine need to be screened; The hydraulic cylinder is controlled to operate, the filter screen is moved upward, and large pellets having a diameter larger than that of standard quality pellets are screened out.

8. The system for cleaning large pellets in a disc pelletizing machine according to claim 7, characterized in that: The cleaning control module is used to control the vibrator and the squeezer to clean the large pellets when the large pellets are screened out, and includes: When screening out large pellets, setting the vibration frequency and vibration amplitude of the vibrator; Controlling the vibration of the disc according to the vibration frequency and vibration amplitude to preliminarily crush the large pellets; After the set time has passed, the extruder is controlled to clean the large pellets.

9. The system for cleaning large pellets in a disc pelletizing machine according to claim 8, characterized in that: The cleaning control module controls the extruder to clean the large pellets, including: Detecting the position of the filter screen and the position of the squeezer, and determining the distance between the filter screen and the squeezer; Setting the pressing distance of the extruder according to the distance; Control the downward pressure of the extruder according to the downward pressure distance to extrude and 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 crushed large pellets.

10. A method for cleaning large pellets in a disc pelletizing machine, applied to the system for cleaning large pellets in a disc pelletizing machine as claimed in any one of claims 1 to 9, characterized in that: include: Collect pellet images when the disc pelletizer is running; Analyzing the pellet image to determine the number of pellets in the pellet image; The number of pellets is compared with the preset number of pellets, and the pellets in the disc pelletizing machine are screened according to the comparison result. If the number of pellets is greater than or equal to the preset number of pellets, large pellets with a diameter greater than that of standard quality pellets are screened out; When large pellets are screened out, the vibrator and the squeezer are controlled to clean the large pellets.

Images