Self-cleaning filter for processing sodium thiocyanate product and use method

Abstract

The invention discloses a self-cleaning filter for processing a sodium thiocyanate product and a use method, and relates to the technical field of chemical equipment. The filtering machine comprises a shell, a feeding pipe, a filtering tank, a filtering plate and a containing and receiving disc, and further comprises a lifting mechanism, a stirring mechanism, an overturning driving mechanism, a vibrating mechanism, a moving mechanism and a mounting mechanism. The lifting mechanism consists of a cylinder on the upper side of the shell and a lifting plate connected with the lower end of a piston rod; the stirring mechanism is arranged on the lifting plate and used for stirring materials in the filter tank; the overturning driving mechanism is connected with the filter tank and drives the filter tank to overturn and pour impurities; the vibration mechanism acts on the filter tank and assists in discharging residual impurities; the moving mechanism is arranged at the lower end in the shell and drives the containing disc to move horizontally. The mounting mechanism is connected with the moving mechanism and the containing disc, and the containing disc is detachably mounted. The at least two containing discs can be switched between the inner station and the outer station through the moving mechanism, and automation and high efficiency of the sodium thiocyanate processing and filtering link are achieved.

Description

Technical Field

[0001] This invention relates to the field of chemical equipment technology, and in particular to a self-cleaning filter for processing sodium thiocyanate products and its usage method. Background Technology

[0002] Sodium thiocyanate, an important chemical product, appears as white orthorhombic crystals or powder and is widely used in chemical analysis reagents, polyacrylonitrile fiber spinning solvents, color film developing agents, and certain plant defoliants. During the production of sodium thiocyanate, large particulate impurities inevitably appear in the powder, thus requiring filtration.

[0003] However, existing filters have revealed significant shortcomings in practical applications. After filtering sodium thiocyanate, a small amount of impurities often remain inside. The currently prevalent manual cleaning method is not only inefficient but also affects the overall progress of the filtration process, failing to meet the demands of modern chemical production for high efficiency and automation. Summary of the Invention

[0004] The purpose of this invention is to provide a self-cleaning filter and its usage method for processing sodium thiocyanate products, so as to solve the problem that existing filters cannot automatically clean impurities and affect the filtration progress, and realize the automation and efficiency of the filtration process in the sodium thiocyanate processing.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] This invention provides a self-cleaning filter for processing sodium thiocyanate products, comprising a shell, a feed pipe disposed on the upper side of the shell, a filter tank and filter plate disposed inside the shell for filtering materials, and a receiving tray disposed below the filter tank for receiving materials. The invention is characterized by further comprising a lifting mechanism, a stirring mechanism, a tilting drive mechanism, a vibration mechanism, a moving mechanism, and an installation mechanism. The lifting mechanism includes a cylinder fixedly mounted on the upper side of the shell and a lifting plate fixedly connected to the lower end of the cylinder piston rod. The stirring mechanism is disposed on the lifting plate for stirring the materials in the filter tank. The tilting drive mechanism is connected to the filter tank for driving the filter tank to tilt and dump impurities. The vibration mechanism acts on the filter tank to assist in discharging residual impurities during tilting. The moving mechanism is disposed at the lower end of the shell for driving the receiving tray to move horizontally. The installation mechanism connects the moving mechanism and the receiving tray for detachably installing the receiving tray. There are at least two receiving trays, which can be switched between working positions inside and outside the shell via the moving mechanism.

[0007] Preferably, the stirring mechanism includes a first motor fixed to the lifting plate, a second rotating rod driven by the first motor and extending to the filter tank at its lower end, and a stirring plate fixed to the lower end of the second rotating rod.

[0008] Preferably, the filter tank is elastically supported on a support frame by a first spring, the support frame is fixed between two first rotating rods, and the first rotating rods are rotatably mounted on the inner wall of the outer casing by bearings.

[0009] Preferably, the flipping drive mechanism includes a second motor fixed to the outside of the housing, a transmission rod driven by the second motor, a first pulley fixed to the transmission rod, a second pulley fixed to the first rotating rod, and a belt connecting the first pulley and the second pulley.

[0010] Preferably, the vibration mechanism includes a fixed plate fixed to the support frame, a third motor mounted on the fixed plate, a rotating disk driven by the third motor and equipped with an extrusion block, and a contact rod fixed to the filter tank and in periodic contact with the extrusion block.

[0011] Preferably, the moving mechanism includes a strip plate fixed to the lower end of the inner wall of the outer casing, a lead screw rotatably mounted on the strip plate, a dual-axis motor for driving the lead screw to rotate, and a first moving block threadedly connected to the lead screw; the mounting mechanism is disposed on the first moving block.

[0012] Preferably, the installation mechanism includes a limiting block fixed to the first moving block, two second moving blocks symmetrically slidably disposed within the limiting block, a second spring connecting the two second moving blocks, a support plate fixed to the second moving blocks, and a locking block fixed to the inner wall of the support plate and engaging with the side wall of the receiving tray.

[0013] Preferably, an observation window is rotatably mounted on the front side of the housing via a pivot pin.

[0014] The present invention also provides a method for processing sodium thiocyanate products using a self-cleaning filter as described in any of the preceding claims, characterized by comprising the following steps:

[0015] S1. Feeding and Filtration: Sodium thiocyanate crystals are added to the filter tank through the feed pipe. The cylinder and stirring mechanism are started to allow qualified crystals to pass through the filter plate and fall into the first receiving tray located inside the outer shell.

[0016] S2. Station switching: Activate the moving mechanism to move the first receiving tray out of the housing, while moving the second receiving tray into the housing and positioning it below the filter tank;

[0017] S3. Slag Removal and Cleaning: Start the tilting drive mechanism to tilt the filter tank upside down and pour the impurities into the second receiving tray. At the same time, start the vibration mechanism to completely remove the impurities.

[0018] S4. Impurity Removal: Activate the moving mechanism to remove the second receiving tray carrying the impurities from the outer casing for processing.

[0019] Preferably, in steps S2 and S4, the receiving tray located outside the housing can be disassembled and replaced through the installation mechanism.

[0020] The present invention achieves the following technical effects compared to the prior art:

[0021] This invention provides a self-cleaning filter and its usage method for processing sodium thiocyanate products. By combining a tilting drive mechanism and a vibration mechanism, it solves the problem of difficult-to-clean residues in traditional filters. After filtration, the tilting drive mechanism drives the filter tank to tilt to an inverted state, allowing most impurities to fall off under gravity. The vibration mechanism further loosens and discharges residual impurities on the inner wall and filter plate of the filter tank through periodic mechanical vibration, achieving automated and thorough impurity cleaning. Simultaneously, the cooperative design of the moving mechanism and at least two receiving trays allows one tray to receive the filtered, qualified material and remove it from the casing for subsequent processing, while another tray can promptly move under the filter tank to receive the impurities discharged during the tilting process. This avoids filtration interruptions caused by impurity cleaning and significantly improves overall processing efficiency. Furthermore, the detachable design of the mounting mechanism facilitates quick replacement and cleaning of the receiving trays, further ensuring continuous and stable operation of the equipment and effectively meeting the requirements of modern chemical production for efficient and automated filtration processes. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a self-cleaning filter for processing sodium thiocyanate products provided by the present invention.

[0024] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;

[0025] Figure 3 This is a schematic diagram of the vibration mechanism in the self-cleaning filter for processing sodium thiocyanate products provided by the present invention.

[0026] Figure 4 A schematic diagram of the third motor, output rod, and rotating disk in the self-cleaning filter for processing sodium thiocyanate products provided by the present invention;

[0027] Figure 5 This is a schematic diagram of the installation mechanism in the self-cleaning filter for processing sodium thiocyanate products provided by the present invention.

[0028] Figure 6 for Figure 2 A magnified structural diagram of part A in the middle.

[0029] In the diagram: 1. Outer shell; 2. Cylinder; 3. Lifting plate; 4. First rotating rod; 5. Support frame; 6. First spring; 7. Filter tank; 8. Filter plate; 9. Fixing plate; 10. Receiving tray; 11. First motor; 12. Second rotating rod; 13. Stirring plate; 14. Feed pipe; 15. Second motor; 16. Transmission rod; 17. Third motor; 18. Output rod; 19. Rotary disk; 20. Extrusion block; 21. Contact rod; 22. Strip plate; 23. Lead screw; 24. Dual-axis motor; 25. Crossbar; 26. First moving block; 27. Fixing rod; 28. Limiting block; 29. ​​Second moving block; 30. Second spring; 31. Support plate; 32. Locking block; 33. Observation window. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] The purpose of this invention is to provide a self-cleaning filter and its usage method for processing sodium thiocyanate products, so as to solve the problem that existing filters cannot automatically clean impurities and affect the filtration progress, and realize the automation and efficiency of the filtration process in the sodium thiocyanate processing.

[0032] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Example 1

[0034] This invention provides a self-cleaning filter for processing sodium thiocyanate products, as shown in Figures 1-6. It includes a housing 1, a feed pipe 14 disposed on the upper side of the housing 1, a filter tank 7 and a filter plate 8 disposed inside the housing 1 for filtering materials, and a receiving tray 10 disposed below the filter tank 7 for receiving materials. The invention is characterized by further including a lifting mechanism, a stirring mechanism, a tilting drive mechanism, a vibration mechanism, a moving mechanism, and an installation mechanism. The lifting mechanism includes a cylinder 2 fixedly mounted on the upper side of the housing 1 and a lifting plate 3 fixedly connected to the lower end of the piston rod of the cylinder 2. The lifting mechanism drives the lifting plate 3 through the cylinder 2, which can flexibly adjust the height of the stirring mechanism, allowing it to accurately descend to a suitable position to stir the material after it is poured into the filter tank 7, thus improving the stirring effect and avoiding material spillage during the feeding process. To prevent interference with the feeding operation, a stirring mechanism is installed on the lifting plate 3 to stir the material in the filter tank 7. The stirring mechanism agitates the sodium thiocyanate material in the filter tank 7, accelerating the screening process and allowing smaller sodium thiocyanate crystals to pass through the filter plate 8 more quickly, improving filtration efficiency and ensuring a more thorough and uniform filtration process. A tilting drive mechanism is connected to the filter tank 7 to drive it to tilt and empty impurities. This mechanism automates impurity cleaning, eliminating the need for manual cleaning, reducing labor intensity, and improving work efficiency. A vibration mechanism acts on the filter tank 7 to assist in tilting. To aid in the removal of residual impurities, the vibration mechanism functions when the filter tank 7 is flipped. Vibration helps to loosen and remove residual impurities adhering to the inner wall of the filter tank 7 and the filter plate 8, ensuring more thorough removal of impurities, improving the cleanliness of the filter, and guaranteeing the accuracy and efficiency of subsequent filtration. The moving mechanism, located at the lower end of the outer casing 1, drives the receiving tray 10 to move horizontally. This allows for switching between the receiving tray 10 inside and outside the casing 1, facilitating the removal of the tray 10 containing sodium thiocyanate crystals after filtration and the insertion of an empty tray to collect impurities, ensuring continuity of filtration and impurity collection. The installation mechanism connects... The moving mechanism and the receiving tray 10 are used for detachable installation of the receiving tray 10. The installation mechanism enables the detachable installation of the receiving tray 10, which is convenient to remove it from the filter after the receiving tray 10 is full of material for subsequent processing, such as further processing of sodium thiocyanate crystals or centralized treatment of impurities. It also facilitates cleaning and maintenance of the receiving tray 10. There are at least two receiving trays 10, which can be switched between working positions inside and outside the housing 1 by the moving mechanism. Setting at least two receiving trays 10 and switching working positions allows the filter to complete the collection of sodium thiocyanate crystals and impurities separately without interruption of operation, thereby improving work efficiency, optimizing the entire filtration process, and making operation more convenient and efficient.

[0035] In a preferred embodiment, the stirring mechanism includes a first motor 11 fixed on the lifting plate 3, a second rotating rod 12 driven by the first motor 11 and extending to the filter tank 7 at its lower end, and a stirring plate 13 fixed to the lower end of the second rotating rod 12. This structural design makes the power transmission of the stirring mechanism direct and stable. The first motor 11 drives the stirring plate 13 to rotate through the second rotating rod 12, which can effectively stir the material in the filter tank 7. The position and rotation speed of the stirring plate 13 can be controlled by the first motor 11 according to the actual filtration requirements, thereby improving the flexibility and targeting of the stirring.

[0036] In a preferred embodiment, the filter tank 7 is elastically supported on a support frame 5 by a first spring 6. The support frame 5 is fixed between two first rotating rods 4. The first rotating rods 4 are rotatably mounted on the inner wall of the outer casing 1 via bearings. The elastic support of the first spring 6 provides the filter tank 7 with a certain buffer and vibration space, which helps to better discharge impurities under the action of the vibration mechanism. At the same time, the rotatable connection between the first rotating rods 4 and the inner wall of the outer casing 1 provides a stable support and rotational foundation for the flipping of the filter tank 7, ensuring the smooth progress of the flipping action.

[0037] In a preferred embodiment, the flipping drive mechanism includes a second motor 15 fixed to the outside of the housing 1, a transmission rod 16 driven by the second motor 15, a first pulley fixed to the transmission rod 16, a second pulley fixed to the first rotating rod 4, and a belt connecting the first pulley and the second pulley. This transmission method has a simple structure and high transmission efficiency. The second motor 15 drives the first pulley to rotate through the transmission rod 16, and then drives the second pulley through the belt, causing the first rotating rod 4 to rotate, ultimately realizing the flipping of the filter tank 7. The belt drive has a certain degree of elasticity, which can buffer the impact force during the transmission process, protect the motor and other components, and facilitate installation and maintenance.

[0038] In a preferred embodiment, the vibration mechanism includes a fixed plate 9 fixed to the support frame 5, a third motor 17 mounted on the fixed plate 9, a rotating disk 19 driven by the third motor 17 and fixedly connected via an output rod 18, and equipped with an extrusion block 20, and a contact rod 21 fixed to the filter tank 7 and periodically in contact with the extrusion block 20. The third motor 17 drives the rotating disk 19 to rotate, causing the extrusion block 20 to periodically contact the contact rod 21, thereby generating a periodic impact force on the filter tank 7 and causing the filter tank 7 to vibrate. This design can precisely control the frequency and intensity of vibration, effectively assisting in the discharge of impurities, while also having a compact structure, occupying little space, and being convenient for installation and debugging.

[0039] In a preferred embodiment, the moving mechanism includes a strip plate 22 fixed to the lower end of the inner wall of the outer casing 1, a lead screw 23 rotatably mounted on the strip plate 22, a dual-axis motor 24 driving the lead screw 23 to rotate, and a first moving block 26 threadedly connected to the lead screw 23. A third pulley is fixedly sleeved on both the left and right ends of the lead screw 23. The dual-axis motor 24 is fixed to the lower side of the strip plate 22. A crossbar 25 is fixed to both the left and right ends of the dual-axis motor 24. A fourth pulley is fixedly sleeved on both ends of the crossbar 25. The third pulley is rotatably connected to the fourth pulley via a belt. A fixing rod 27 is fixed to both the left and right sides of the first moving block 26. The mounting mechanism is mounted on the fixing rod 27. The dual-axis motor 24 drives the lead screw 23 to rotate. Through the threaded connection between the lead screw 23 and the first moving block 26, the rotational motion of the motor is converted into the linear motion of the first moving block 26, thereby driving the mounting mechanism and the receiving tray 10 to move horizontally. This structure is simple and reliable, and can precisely control the movement position and speed of the receiving tray 10, meeting the needs of the receiving tray 10 movement in different working scenarios.

[0040] In a preferred embodiment, the installation mechanism includes a limiting block 28 fixed to the first moving block 26, two second moving blocks 29 symmetrically slidably disposed within the limiting block 28, a second spring 30 connecting the two second moving blocks 29, a support plate 31 fixed to the second moving blocks 29, and a locking block 32 fixed to the inner wall of the support plate 31 and engaging with the side wall of the receiving tray 10. This installation mechanism utilizes the elastic force of the second spring 30 to ensure that the locking block 32 tightly engages with the side wall of the receiving tray 10, guaranteeing that the receiving tray 10 is firmly fixed during movement. Simultaneously, the sliding of the second moving blocks 29 within the limiting block 28 facilitates the installation and removal of the receiving tray 10, making operation simple and convenient, and improving the efficiency of replacing the receiving tray 10.

[0041] In a preferred embodiment, an observation window 33 is rotatably mounted on the front side of the outer casing 1 via a pivot pin. The observation window 33 allows operators to easily monitor the internal workings of the filter, such as the filtration status of the material, the receiving tray 10's receiving condition, and the rotation and vibration effects of the filter tank 7. Observation allows for timely detection and adjustment of problems, ensuring the filter operates normally and improving its reliability and stability.

[0042] Example 2

[0043] This embodiment also provides a method for processing sodium thiocyanate products using a self-cleaning filter as described in any of Embodiment 1, comprising the following steps:

[0044] Preparation stage

[0045] Equipment Inspection: Before using the filter, check that all components are securely installed and properly connected. Pay particular attention to the wiring connections of power components such as cylinder 2 and the motor, and ensure that the tension of transmission components such as belts and lead screws 23 is appropriate. Also, confirm that the observation window 33 can open and close normally to observe the internal condition of the equipment.

[0046] Install the receiving tray 10: Install at least two receiving trays 10 onto the first moving block 26 of the moving mechanism via the mounting mechanism. Specifically, align the side wall of the receiving tray 10 with the locking block 32 of the mounting mechanism and push it in forcefully. The locking block 32, under the action of the second spring 30, tightly locks the side wall of the receiving tray 10, ensuring that the receiving tray 10 is securely installed. At this time, one of the receiving trays 10 is located in the position below the filter tank 7 inside the housing 1, and the other is located outside the housing 1 for backup.

[0047] Filtering stage

[0048] Feeding: Slowly pour the sodium thiocyanate material to be filtered into the filter tank 7 through the feed pipe 14 on the upper side of the outer shell 1. During the feeding process, carefully observe the pouring of the material to avoid overflow.

[0049] Stirring and Filtration: Starting cylinder 2 causes the piston rod to lower the lifting plate 3, positioning the stirring plate 13 of the stirring mechanism within the filter tank 7. Starting the first motor 11 drives the second rotating rod 12 to rotate, which in turn causes the stirring plate 13 to stir the sodium thiocyanate material within the filter tank 7. Under stirring, smaller sodium thiocyanate crystals pass through the filter plate 8 and fall into the receiving tray 10 located inside the outer casing 1, while larger impurities remain within the filter tank 7. The operator can observe the filtration progress and effect through the observation window 33. If the filtration speed is too slow or there are signs of clogging, the stirring speed can be adjusted appropriately, or the filter plate 8 can be checked for cleaning.

[0050] Sheng takes over 10 positions in the transition phase

[0051] Once the receiving tray 10 inside the outer casing 1 has collected a certain amount of sodium thiocyanate crystals, the dual-axis motor 24 is activated. The dual-axis motor 24 drives the lead screw 23 to rotate, and the lead screw 23 drives the first moving block 26, which is threaded to it, to move horizontally, thereby causing the two receiving trays 10 mounted on the first moving block 26 to interchange positions. The receiving tray 10 that was originally inside the outer casing 1 collecting crystals moves to the outside of the outer casing 1, while the empty receiving tray 10 that was originally outside the outer casing 1 moves to the inside of the outer casing 1 below the filter tank 7, ready to receive impurities poured out after the filter tank 7 is overturned.

[0052] Impurity removal stage

[0053] Filter tank 7 flips: The second motor 15 is started, driving the transmission rod 16 to rotate. The transmission rod 16 drives the first pulley fixed thereon to rotate. The first pulley drives the second pulley fixed on the first rotating rod 4 to rotate via a belt, thereby causing the first rotating rod 4 to rotate. The support frame 5 connected to the first rotating rod 4 and the filter tank 7 elastically supported on the support frame 5 by the first spring 6 then flip. When the filter tank 7 flips to the appropriate angle, the remaining impurities inside are poured into the receiving tray 10 that is already in place below.

[0054] Vibration-assisted impurity removal: Simultaneously with the rotation of the filter tank 7, the third motor 17 is activated. The third motor 17 drives the rotating disk 19 to rotate, and the pressing blocks 20 on the rotating disk 19 rotate with it, periodically contacting the contact rods 21 fixed to the filter tank 7. The pressing of the pressing blocks 20 against the contact rods 21 causes the filter tank 7 to vibrate. With the assistance of the elastic support of the first spring 6, residual impurities adhering to the inner wall of the filter tank 7 and the filter plate 8 are more easily detached and discharged, ensuring that impurities are more thoroughly removed into the receiving tray 10.

[0055] Collection and cleaning phase

[0056] Impurity Collection: After all impurities have been discharged, the dual-axis motor 24 is restarted to reverse the movement of the moving mechanism, moving the receiving tray 10 containing impurities to the outside of the outer casing 1. The receiving tray 10 containing the collected impurities is then properly handled, such as by collecting the impurities centrally and carrying out subsequent environmental protection treatment.

[0057] Sodium thiocyanate crystal collection: The sodium thiocyanate crystals in the receiving tray 10, which has been moved outside the outer shell 1, are collected and transferred to containers or equipment required for subsequent processing steps, such as drying and packaging.

[0058] Equipment Cleaning: After completing one filtration operation, the observation window 33 can be opened to perform a simple cleaning of the inside of the filter, checking for any impurities remaining on the filter plate 8. If necessary, it can be disassembled and cleaned. At the same time, all components should be inspected to prepare for the next use.

[0059] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A self-cleaning filter for processing sodium thiocyanate products, comprising a shell, a feed pipe disposed on the upper side of the shell, a filter tank and filter plate disposed inside the shell for filtering materials, and a receiving tray disposed below the filter tank for receiving materials, characterized in that, Also includes: The lifting mechanism includes a cylinder fixedly installed on the upper side of the housing and a lifting plate fixedly connected to the lower end of the cylinder piston rod; A stirring mechanism, which is mounted on the lifting plate, is used to stir the material in the filter tank. A flipping drive mechanism is connected to the filter tank and is used to drive the filter tank to flip over to dump impurities; A vibration mechanism acts on the filter tank to assist in the discharge of residual impurities during tumbling. A moving mechanism, disposed inside the lower end of the housing, for driving the receiving tray to move horizontally; and, The installation mechanism connects the moving mechanism and the receiving tray, and is used to detachably install the receiving tray; The receiving tray is at least two in number and can be switched between workstations inside and outside the housing via the moving mechanism.

2. The self-cleaning filter according to claim 1, characterized in that, The stirring mechanism includes a first motor fixed to the lifting plate, a second rotating rod driven by the first motor and extending to the filter tank at its lower end, and a stirring plate fixed to the lower end of the second rotating rod.

3. The self-cleaning filter according to claim 1, characterized in that, The filter tank is elastically supported on a support frame by a first spring. The support frame is fixed between two first rotating rods, and the first rotating rods are rotatably mounted on the inner wall of the outer casing via bearings.

4. The self-cleaning filter according to claim 3, characterized in that, The flipping drive mechanism includes a second motor fixed to the outside of the housing, a transmission rod driven by the second motor, a first pulley fixed to the transmission rod, a second pulley fixed to the first rotating rod, and a belt connecting the first pulley and the second pulley.

5. The self-cleaning filter according to claim 3, characterized in that, The vibration mechanism includes a fixed plate fixed to the support frame, a third motor mounted on the fixed plate, a rotating disk driven by the third motor and equipped with an extrusion block, and a contact rod fixed to the filter tank and periodically in contact with the extrusion block.

6. The self-cleaning filter according to claim 1, characterized in that, The moving mechanism includes a strip plate fixed to the lower end of the inner wall of the outer shell, a lead screw rotatably mounted on the strip plate, a dual-axis motor that drives the lead screw to rotate, and a first moving block threadedly connected to the lead screw; the mounting mechanism is disposed on the first moving block.

7. The self-cleaning filter according to claim 6, characterized in that, The installation mechanism includes a limiting block fixed to the first moving block, two second moving blocks symmetrically slidably disposed within the limiting block, a second spring connecting the two second moving blocks, a support plate fixed to the second moving blocks, and a locking block fixed to the inner wall of the support plate and engaging with the side wall of the receiving tray.

8. The self-cleaning filter according to claim 1, characterized in that, An observation window is rotatably mounted on the front side of the outer casing via a pivot pin.

9. A method for processing sodium thiocyanate products using a self-cleaning filter according to any one of claims 1-8, characterized in that, Includes the following steps: S1. Feeding and Filtration: Sodium thiocyanate crystals are added to the filter tank through the feed pipe. The cylinder and stirring mechanism are started to allow qualified crystals to pass through the filter plate and fall into the first receiving tray located inside the outer shell. S2. Station switching: Activate the moving mechanism to move the first receiving tray out of the housing, while moving the second receiving tray into the housing and positioning it below the filter tank; S3. Slag Removal and Cleaning: Start the tilting drive mechanism to tilt the filter tank upside down and pour the impurities into the second receiving tray. At the same time, start the vibration mechanism to completely remove the impurities. S4. Impurity Removal: Activate the moving mechanism to remove the second receiving tray carrying the impurities from the outer casing for processing.

10. The method according to claim 9, characterized in that, In steps S2 and S4, the receiving tray located outside the housing can be disassembled and replaced through the installation mechanism.

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