A device and method for producing coarse inorganic salt crystalline particles

Abstract

The application discloses a kind of crude inorganic salt crystalline particle production device and method, comprising: device base, upper surface left side is fixedly equipped with driving motor, the output shaft of driving motor is coaxially fixedly equipped with particle forming assembly, the lower end of particle forming assembly is fixedly equipped on the upper surface of device base, and its upper end is fixedly equipped with crystallization soft tank, crystallization soft tank is fixedly equipped above, and crystallization hopper is externally connected with inorganic salt crystallization component;Master control box is placed in the back of driving motor, and is fixedly equipped on the upper surface of device base;The right side and back of particle forming assembly are respectively placed with standard particle collection barrel and non-standard particle recovery barrel.

Description

Technical Field

[0001] This invention relates to the field of inorganic salt production technology, specifically to an apparatus and method for producing crude inorganic salt crystal particles. Background Technology

[0002] Inorganic salt crystallization refers to the formation of primary crystals from inorganic substances (including metals and non-metals) in solution. Through a series of processes such as crystal growth, crystallization, and purification, crystalline products of varying purities and crystal forms can be obtained. Due to the numerous applications and manufacturing demands, the inorganic salt crystallization industry chain is highly complex, with significant differences between companies of different origins and sizes. Purity, crystal form, and other properties all greatly influence its application performance. The purity requirements for inorganic salt crystallization vary depending on the specific application. In some specific applications, the requirement for widespread crystallization is lower; in these cases, using crude inorganic salt crystals with a certain content of impurities can reduce manufacturing costs and improve production efficiency. However, in other applications, higher purity is required, necessitating the use of higher-purity inorganic salt crystals to ensure a better quality and more stable supply to the market and to serve research in specific fields.

[0003] Because crude inorganic salt crystals contain a certain amount of impurities, their size affects their actual efficiency in subsequent use when they are granulated. Existing granulation equipment cannot effectively convert crude inorganic salt crystals into standard-sized particles. Furthermore, larger or smaller particles not only reduce subsequent use efficiency but also increase transportation difficulties. At the same time, small inorganic salt crystals will be suspended in the air, causing air pollution and harming the health of workers.

[0004] Therefore, it is necessary to provide a device for producing crude inorganic salt crystal particles to solve the above problems. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for producing crude inorganic salt crystallized particles, comprising:

[0006] The device base has a drive motor fixedly mounted on the left side of its upper surface. A particle forming component is coaxially fixedly mounted on the output shaft of the drive motor. The lower end of the particle forming component is fixedly mounted on the upper surface of the device base, and a crystallization soft box is fixedly mounted on its upper end. A crystallization hopper is fixedly mounted above the crystallization soft box, and an inorganic salt crystallization component is connected to the outside of the crystallization hopper.

[0007] The main control box is placed on the back side of the drive motor and is fixedly mounted on the upper surface of the device base;

[0008] A standard particle collection bin and a non-standard particle recycling bin are placed on the right and back sides of the particle forming assembly, respectively.

[0009] Furthermore, preferably, the particle forming assembly includes:

[0010] The transmission box has its left end coaxially fixedly mounted on the output shaft of the drive motor, and its upper end fixedly mounted on a granulation barrel. The output shaft at the upper end of the transmission box is coaxially rotatably arranged inside the granulation barrel. Inside the granulation barrel, from top to bottom, a granulating roller, a granulating sieve, a cutting blade, and a three-component granulation sieve are coaxially arranged. The granulating roller and the cutting blade are coaxially fixedly mounted on the output shaft at the upper end of the transmission box. The granulating sieve and the three-component granulation sieve are coaxially fixedly mounted on the inner wall of the granulation barrel and are rotatably arranged with the transmission shaft at the upper end of the transmission box.

[0011] Furthermore, as a preferred embodiment, three sets of granulation outlets are fixedly mounted on the outside of the granulation barrel, and the three sets of granulation outlets correspond to three sets of granulation screens respectively.

[0012] Furthermore, as a preferred embodiment, the three sets of granulation screens are rotatably fitted with two sets of vibration transmission columns, the lower ends of the two sets of vibration transmission columns are fixedly mounted on the vibrator, and the vibrator is placed below the transmission box and fixedly mounted on the upper surface of the device base.

[0013] Furthermore, preferably, the particle sieve comprises:

[0014] The universal rotating wheel is coaxially mounted on the output shaft at the upper end of the transmission box, and a screening sieve plate is rotatably mounted on its outer side. An elastic connecting strip is fixedly mounted on the outer side of the screening sieve plate, and the elastic connecting strip is fixedly mounted on the inner wall of the granulation barrel.

[0015] An elastic supplement strip is provided at the connection between the screening sieve plate and the particle outlet.

[0016] Furthermore, as a preferred embodiment, the aperture of the screening holes in the screening sieve plate decreases sequentially from top to bottom, and the aperture of the screening holes in the screening sieve plate at the bottommost particle sieve is zero.

[0017] Furthermore, preferably, the pelletizing roller includes:

[0018] A cross-shaped rotating shaft is coaxially fixedly mounted on the output shaft at the upper end of the transmission box. External grinding wheels are rotatably mounted on the transmission shafts at both ends of the shaft. Anti-sticking blocks are provided on the outer sides of the external grinding wheels. These anti-sticking blocks are coaxially fixedly mounted on the transmission shafts at both ends of the cross-shaped rotating shaft. A transmission assembly is embedded within each anti-sticking block. A fixed gear is meshed with the outer side of the transmission assembly. The fixed gear is coaxially fixedly embedded in the inner wall of the granulation barrel. A cleaning column ejection assembly is rotatably mounted inside the transmission assembly.

[0019] Furthermore, as a preferred embodiment, the outer grinding wheel has a through hole, on which a sieve hole cleaning column is slidably mounted, and a compression spring is fixedly mounted on the inner side of the outer grinding wheel.

[0020] Furthermore, preferably, the cleaning column ejection assembly includes:

[0021] The fixed block is provided in two sets, which are mounted on the transmission shaft on one side of the cross rotating shaft. A sliding groove is provided on its outer side, and a pop-out plate is slidably mounted in it. An adjusting column is provided on the inner side of the pop-out plate. The adjusting column is slidably mounted on the adjusting gear, and the adjusting gear is connected to the transmission group.

[0022] A method for producing crude inorganic salt crystal particles includes the following steps:

[0023] S1. Inject crystallization raw materials into the crystallization hopper through an external inorganic salt crystallization component;

[0024] S2. After being bonded and stirred in the crystallization box, the crystalline raw material falls into the granulation component in the form of a soft sheet.

[0025] S3. The pellet forming component uses the forward rotation of the pelleting roller to make the soft material sheet pass through the pelleting screen and be formed into pellets under the action of the cutting blade;

[0026] S4. The vibrator is started, and under the action of the vibration transmission column, the three-component granulation screen vibrates, so that the oversized or undersized particles fall into the non-standard particle recycling bin, and the standard-sized particles fall into the standard particle collection bin.

[0027] S5. Add the granules from the non-standard granule recycling bin back into the crystallization hopper for reuse.

[0028] S6. When granulation is complete or granulation efficiency decreases, reverse the granulation roller to activate the cleaning column ejection component inside, eject the screen cleaning column, and clean the material adhering to the granulation screen.

[0029] Compared with the prior art, the present invention provides an apparatus and method for producing crude inorganic salt crystal particles, which has the following beneficial effects:

[0030] 1. In this invention, the granulation component granulates the raw material in the form of soft sheets, causing standard-sized granules to fall into a standard granule collection bin, while excessively large or small granules fall into a non-standard granule recycling bin. When the granules in the non-standard granule recycling bin accumulate to a certain extent (about to overflow), the granules in the non-standard granule recycling bin are added back into the crystallization feed hopper for recycling. This ensures product quality while improving the utilization rate of raw materials. Furthermore, during the granulation process, adjustments can be made through the main control box according to the type and properties of the crude inorganic salt to be granulated and the actual situation, thereby enhancing granulation efficiency and improving product quality.

[0031] 2. In this invention, a vibrator is installed below the granulation assembly. Under the action of the vibration transmission column, the three-component granulation screen vibrates, allowing the corresponding granules on different granulation screens to enter the corresponding standard granule collection bucket or non-standard granule recycling bucket through the granulation outlet. This greatly improves the granulation efficiency and prevents blockage and clogging, thus improving the uniformity of the granules. Furthermore, a cleaning column ejection assembly is installed on the granulation roller. When granulation is completed or the granulation efficiency decreases, the sieve cleaning column can be ejected to clean the substances adhering to the granulation screen, thereby cleaning the device or improving the subsequent granulation efficiency and increasing the yield of finished granules. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of a device for producing crude inorganic salt crystallization particles.

[0033] Figure 2 A particle forming component of a crude inorganic salt crystallization particle production device; structural schematic diagram;

[0034] Figure 3 This is a schematic diagram of a particle sieve structure for a coarse inorganic salt crystallization particle production device.

[0035] Figure 4 A schematic diagram of a granulation grinding wheel structure in a coarse inorganic salt crystallization particle production device;

[0036] Figure 5 A schematic diagram of the cleaning column ejection assembly structure of a crude inorganic salt crystallization particle production device;

[0037] In the diagram: 1. Device base; 2. Drive motor; 3. Main control box; 4. Granulation forming assembly; 5. Crystallization soft box; 6. Crystallization hopper; 7. Standard granule collection bucket; 8. Non-standard granule recycling bucket; 41. Vibrator; 42. Transmission box; 43. Granulation bucket; 44. Granulation outlet; 45. Granulation screen; 46. Granulation sieve; 47. Cutting blade; 48. Granulation roller; 49. Vibration transmission column; 461. Universal rotating wheel; 462. Screening sieve plate; 463. Elastic connecting strip; 464. Elastic supplementary strip; 481. Cross rotating shaft; 482. Outer roller; 483. Bucket wall anti-stick block; 484. Transmission group; 485. Fixed gear; 486. Cleaning column ejection assembly; 487. Screen hole cleaning column; 488. Compression spring; 4861. Fixing block; 4862. Ejection plate; 4863. Adjusting gear; 4864. Adjusting column. Detailed Implementation

[0038] Please see Figures 1-5 This invention provides a device for producing crude inorganic salt crystallized particles, comprising:

[0039] The device base 1 has a drive motor 2 fixedly mounted on the left side of its upper surface. A particle forming component 4 is coaxially fixedly mounted on the output shaft of the drive motor 2. The lower end of the particle forming component 4 is fixedly mounted on the upper surface of the device base 1. A crystallization soft box 5 is fixedly mounted on its upper end. A crystallization hopper 6 is fixedly mounted above the crystallization soft box 5. An inorganic salt crystallization component is connected to the outside of the crystallization hopper 6.

[0040] The main control box 3 is placed on the back side of the drive motor 2 and is fixedly mounted on the upper surface of the device base 1;

[0041] The standard particle collection bucket 7 and the non-standard particle recycling bucket 8 are respectively placed on the right and back sides of the particle forming component 4.

[0042] In a preferred embodiment, crystallization raw materials are injected into the crystallization hopper 6 through an external inorganic salt crystallization component. After being bonded and stirred by the crystallization soft box 5, the crystallization raw materials fall into the granulation component 4 in the form of soft sheets. The granulation component 4 granulates the raw materials in the soft sheet state, so that standard-sized particles fall into the standard particle collection bin 7, while particles that are too large or too small fall into the non-standard particle recycling bin 8. When the particles in the non-standard particle recycling bin 8 accumulate to a certain extent (about to overflow), the particles in the non-standard particle recycling bin 8 are added back into the crystallization hopper 6 for reuse. During the granulation process, the main control box 3 is adjusted according to the type and properties of the crude inorganic salt to be granulated and the actual situation, thereby enhancing the granulation efficiency and improving the product quality.

[0043] Furthermore, the particle forming component 4 includes:

[0044] The transmission box 42 has its left end coaxially fixedly mounted on the output shaft of the drive motor 2, and its upper end fixedly mounted on the granulation barrel 43. The output shaft at the upper end of the transmission box 42 is coaxially rotatably arranged inside the granulation barrel 43. Inside the granulation barrel 43, from top to bottom, a granulating roller 48, a granulating sieve 45, a cutting blade 47, and a three-component granulation sieve 46 are coaxially arranged. The granulating roller 48 and the cutting blade 47 are coaxially fixedly mounted on the output shaft at the upper end of the transmission box 42. The granulating sieve 45 and the three-component granulation sieve 46 are coaxially fixedly mounted on the inner wall of the granulation barrel 43 and are rotatably arranged with the transmission shaft at the upper end of the transmission box 42.

[0045] In a preferred embodiment, after the crystallizing raw material is bonded and stirred in the crystallizing box 5, it falls into the granulation assembly 4 in the form of a soft sheet. The granulation assembly 4 rotates forward through the granulation roller 48, causing the soft sheet to pass through the granulation screen 45 and be granulated under the action of the cutting blade 47. The granules then fall onto the corresponding granulation screen 46. An adjustable gearbox is provided at the connection between the cutting blade 47 and the output shaft at the upper end of the transmission box 42, which can adjust the rotation speed of the cutting blade 47 within a certain range. Thus, the size of the granules can be adjusted by adjusting the rotation speed ratio between the cutting blade 47 and the granulation roller 48.

[0046] Furthermore, three sets of granulation outlets 44 are fixedly mounted on the outside of the granulation barrel 43, and the three sets of granulation outlets 44 correspond to three sets of granulation screens 46 respectively.

[0047] Furthermore, two sets of vibration transmission columns 49 are rotatably mounted on the three sets of particle sieves 46. The lower ends of the two sets of vibration transmission columns 49 are fixedly mounted on the vibrator 41. The vibrator 41 is placed below the transmission box 42 and fixedly mounted on the upper surface of the device base 1.

[0048] In a preferred embodiment, by activating the vibrator 41, the three-component granulation screen 46 is driven to vibrate under the action of the vibration transmission column 49. This allows the corresponding particles on different granulation screens 46 to enter the corresponding standard particle collection bucket 7 or non-standard particle recycling bucket 8 through the particle outlet 44, which greatly improves the granulation efficiency and prevents blockage and clogging, thereby improving the uniformity of the particles.

[0049] Furthermore, the particle sieve 46 includes:

[0050] Universal swivel wheel 461 is coaxially rotatably mounted on the output shaft at the upper end of the transmission box 42. A screening sieve plate 462 is rotatably mounted on its outer side. An elastic connecting strip 463 is fixedly mounted on the outer side of the screening sieve plate 462. The elastic connecting strip 463 is fixedly mounted on the inner wall of the granulation barrel 43.

[0051] An elastic supplementary strip 464 is provided at the connection between the screening sieve plate 462 and the particle outlet 44;

[0052] In a preferred embodiment, the universal rotating wheel 461, the elastic connecting strip 463, and the elastic supplementary strip 464 are provided so that the screening sieve plate 462 remains connected during the vibration of the vibration transmission column 49, preventing particles from being exposed through gaps, causing uneven particle size in the finished product, and thus affecting the quality of the finished product.

[0053] Furthermore, the aperture of the screening holes in the screening sieve plate 462 decreases from top to bottom, and the aperture of the screening holes in the screening sieve plate 462 of the lowest particle sieve 46 is zero.

[0054] In a preferred embodiment, the aperture of the upper screening sieve plate 462 is larger than the maximum diameter of the crude inorganic salt standard particles to be produced, and the aperture of the middle screening sieve plate 462 is smaller than the minimum diameter of the crude inorganic salt standard particles to be produced.

[0055] Furthermore, the pelletizing roller 48 includes:

[0056] A cross-shaped rotating shaft 481 is coaxially fixedly mounted on the output shaft at the upper end of the transmission box 42. External grinding wheels 482 are rotatably mounted on the transmission shafts at both ends of the cross-shaped rotating shaft 481. A barrel wall anti-sticking block 483 is provided on the outer side of the external grinding wheel 482. The barrel wall anti-sticking block 483 is coaxially fixedly mounted on the transmission shafts at both ends of the cross-shaped rotating shaft 481. A transmission assembly 484 is embedded within the barrel wall anti-sticking block 483. A fixed gear 485 is meshed on the outer side of the transmission assembly 484. The fixed gear 485 is coaxially fixedly embedded on the inner wall of the granulation barrel 43. A cleaning column ejection assembly 486 is rotatably mounted inside the transmission assembly 484.

[0057] In a preferred embodiment, the connecting gear between the transmission assembly 484 and the fixed gear 485 is provided with a one-way rotating bearing. When the granulation roller 48 rotates forward, the connecting gear rotates freely under the action of the fixed gear 485, and the transmission assembly 484 does not perform transmission. Furthermore, during the rotation of the granulation roller 48, the outer roller 482 will rotate along the shaft.

[0058] Furthermore, the outer grinding wheel 482 has a through hole, on which a screen hole cleaning column 487 is slidably mounted. A compression spring 488 is fixedly mounted on the inner side of the outer grinding wheel 482 and the screen hole cleaning column 487.

[0059] Furthermore, the cleaning column ejection component 486 includes:

[0060] The fixed block 4861 has two sets of mirror images and is mounted on the transmission shaft on one side of the cross rotating shaft 481. A sliding groove is opened on its outer side, and a pop-out plate 4862 is slidably mounted in it. An adjusting column 4864 is provided on the inner side of the pop-out plate 4862. The adjusting column 4864 is slidably mounted on the adjusting gear 4863. The adjusting gear 4863 is connected to the transmission group 484.

[0061] In a preferred embodiment, the adjusting gear 4863 is provided with a clamping component on its inner side. This component releases the fixing block 4861 when no external force is applied, and clamps the fixing block 4861 when an external force is applied. When granulation is completed or the granulation efficiency decreases, the granulation roller 48 is reversed. Under the action of the fixing gear 485, the transmission group 484 transmits power, causing the adjusting gear 4863 to rotate. Under the action of the adjusting column 4864, the ejector plate 4862 slides outward. The ejector plate 4862 pushes the screen hole cleaning column 487 outward until it reaches its limit position. At this time, under the action of external torque, the adjusting gear 4863 and the fixing block 4861 are relatively fixed and rotate synchronously under the action of external force. Simultaneously, the screen hole cleaning column 487 exits, cleaning the material adhering to the granulation screen 45.

[0062] A method for producing crude inorganic salt crystal particles includes the following steps:

[0063] S1. Crystallization raw materials are injected into the crystallization hopper 6 through an external inorganic salt crystallization component;

[0064] S2. After being bonded and stirred in the crystallization box 5, the crystallization raw material falls into the particle forming component 4 in the form of a soft sheet.

[0065] S3. The pellet forming component 4 rotates forward through the pelleting roller 48, causing the soft material sheet to pass through the pelleting screen 45 and be formed into pellets under the action of the cutting blade 47;

[0066] S4. The vibrator 41 is started, and under the action of the vibration transmission column 49, it drives the three-component granulation screen 46 to vibrate, so that the oversized or undersized particles fall into the non-standard particle recycling bin 8, and the standard-sized particles fall into the standard particle collection bin 7.

[0067] S5. The particles in the non-standard particle recycling bin 8 are added back into the crystallization hopper 6 for reuse.

[0068] S6. When granulation is completed or granulation efficiency decreases, reverse the granulation roller 48 to activate the cleaning column ejection component 486 inside, eject the screen hole cleaning column 487, and clean the material adhering to the granulation screen 45.

[0069] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for producing crude inorganic salt crystallized particles, characterized in that: include: The device base (1) has a drive motor (2) fixedly mounted on the left side of its upper surface. A particle forming component (4) is coaxially fixedly mounted on the output shaft of the drive motor (2). The lower end of the particle forming component (4) is fixedly mounted on the upper surface of the device base (1), and a crystallization soft box (5) is fixedly mounted on its upper end. A crystallization hopper (6) is fixedly mounted above the crystallization soft box (5), and an inorganic salt crystallization component is connected to the outside of the crystallization hopper (6). The main control box (3) is placed on the back side of the drive motor (2) and fixedly mounted on the upper surface of the device base (1); The standard particle collection bucket (7) and the non-standard particle recycling bucket (8) are respectively placed on the right and back sides of the particle forming component (4); The particle forming assembly (4) includes: The transmission box (42) is coaxially fixedly mounted on the output shaft of the drive motor (2) at its left end, and a granulation barrel (43) is fixedly mounted on its upper end. The output shaft at the upper end of the transmission box (42) is coaxially rotatably arranged inside the granulation barrel (43). The granulation barrel (43) contains a granulation roller (48), a granulation screen (45), a cutting blade (47), and a three-component granulation screen (46) arranged coaxially from top to bottom inside the granulation barrel (43). The pelleting roller (48) includes: A cross-shaped rotating shaft (481) is coaxially fixedly mounted on the output shaft at the upper end of the transmission box (42). External grinding wheels (482) are rotatably mounted on the transmission shafts at both ends of the shaft. A barrel wall anti-stick block (483) is provided on the outer side of the external grinding wheel (482). The barrel wall anti-stick block (483) is coaxially fixedly mounted on the transmission shafts at both ends of the cross-shaped rotating shaft (481). A transmission assembly (484) is embedded in the barrel wall anti-stick block (483). A fixed gear (485) is meshed on the outer side of the transmission assembly (484). The fixed gear (485) is coaxially fixedly embedded on the inner wall of the granulation barrel (43). A cleaning column ejection assembly (486) is rotatably mounted on the inner side of the transmission assembly (484). The outer grinding wheel (482) has a through hole, and a screen hole cleaning column (487) is slidably mounted on it; The cleaning column ejection assembly (486) includes: Two sets of fixed blocks (4861) are mirror-arranged and mounted on the transmission shaft on one side of the cross rotating shaft (481). A sliding groove is provided on the outer side of the fixed block, and a pop-out plate (4862) is slidably mounted inside the pop-out plate (4862). An adjusting column (4864) is provided on the inner side of the pop-out plate (4862). The adjusting column (4864) is slidably mounted on the adjusting gear (4863), and the adjusting gear (4863) is connected to the transmission group (484).

2. The apparatus for producing crude inorganic salt crystallizing particles according to claim 1, characterized in that: The granulating roller (48) and the cutting blade (47) are coaxially fixedly mounted on the output shaft at the upper end of the transmission box (42). The granulating screen (45) and the three-component granulating screen (46) are coaxially fixedly mounted on the inner wall of the granulation barrel (43) and are rotatably mounted with the transmission shaft at the upper end of the transmission box (42).

3. The apparatus for producing crude inorganic salt crystallizing particles according to claim 2, characterized in that: The granulation barrel (43) is fixedly equipped with three sets of granulation outlets (44) on the outside, and the three sets of granulation outlets (44) correspond to three sets of granulation screens (46).

4. The apparatus for producing crude inorganic salt crystallizing particles according to claim 3, characterized in that: Two sets of vibration transmission columns (49) are rotatably mounted on the three sets of granulation screens (46). The lower ends of the two sets of vibration transmission columns (49) are fixedly mounted on the vibrator (41). The vibrator (41) is placed below the transmission box (42) and fixedly mounted on the upper surface of the device base (1).

5. The apparatus for producing crude inorganic salt crystallizing particles according to claim 4, characterized in that: The particle sieve (46) includes: The universal rotating wheel (461) is coaxially rotatably mounted on the output shaft at the upper end of the transmission box (42), and a screening sieve plate (462) is rotatably mounted on its outer side. An elastic connecting strip (463) is fixedly mounted on the outer side of the screening sieve plate (462), and the elastic connecting strip (463) is fixedly mounted on the inner wall of the granulation barrel (43). An elastic supplement strip (464) is provided at the connection between the screening sieve plate (462) and the particle outlet (44).

6. The apparatus for producing crude inorganic salt crystallizing particles according to claim 5, characterized in that: The pore size of the screening sieve plate (462) decreases from top to bottom, and the pore size of the screening sieve plate (462) of the lowest particle sieve (46) is zero.

7. The apparatus for producing crude inorganic salt crystallizing particles according to claim 1, characterized in that: A compression spring (488) is fixedly assembled on the inner side of the screen cleaning column (487) and the outer grinding wheel (482).

8. A method for producing crude inorganic salt crystal particles, using the crude inorganic salt crystal particle production apparatus as described in any one of claims 1-7, characterized in that: Includes the following steps: S1. Inject crystallization raw materials into the crystallization hopper (6) through an external inorganic salt crystallization component; S2. After being bonded and stirred in the crystallization box (5), the crystallization raw material falls into the particle forming component (4) in the form of a soft sheet; S3. The pellet forming component (4) rotates forward through the pelleting roller (48) to make the soft material sheet pass through the pelleting screen (45) and be formed into pellets under the action of the cutting blade (47); S4. The vibrator (41) is started, and under the action of the vibration transmission column (49), it drives the three-component granulation screen (46) to vibrate, so that the oversized or undersized particles fall into the non-standard particle recycling bin (8), and the standard-sized particles fall into the standard particle collection bin (7). S5. The particles in the non-standard particle recycling bin (8) are added back into the crystallization hopper (6) for utilization. S6. When granulation is completed or granulation efficiency decreases, reverse the granulation roller (48) to activate the cleaning column ejection component (486) inside, eject the screen hole cleaning column (487) to clean the material adhering to the granulation screen (45).

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