A granulator device and processing method based on sulfur-based compound fertilizer processing

Abstract

The present invention relates to the technical field of granulation equipment, and discloses a granulator equipment based on the processing of sulfur-based compound fertilizers and a processing method, wherein a granulator equipment based on the processing of sulfur-based compound fertilizers includes a base, a rotating seat group arranged on the top of the base, a granulation barrel arranged above the rotating seat group, and also includes mounting seats arranged at both ends of the base, a cleaning component arranged on the inside of the granulation barrel, and the cleaning component specifically includes a rotating sleeve arranged on the inside of the two mounting seats, a rotating shaft arranged between the two rotating sleeves, a scraping rod and a rotating disk arranged on the outside of the rotating shaft. The granulator equipment based on the processing of sulfur-based compound fertilizers, by providing a cleaning component, the scraping rod is attached to the inner wall of the granulation barrel, and can scrape off the material adhered to the inner wall of the granulation barrel, thereby ensuring the cleanliness of the inside of the granulation barrel, which is beneficial to improving the quality of the processed material particles, reducing the energy consumption of the equipment, and also protecting the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of granulation equipment, in particular to granulation equipment and a processing method based on sulfur-based compound fertilizer processing. Background Art

[0002] Sulfur-based compound fertilizers are made from potassium sulfate or potassium chloride stripped of chloride ions. The chloride ion content must not exceed 3%. Sulfur-based compound fertilizers offer a high and balanced nutrient content, are low in chloride, are pollution-free, have high fertilizer efficiency, and offer a high utilization rate. To produce these fertilizers, various raw materials are mixed, then granulated using a rotary drum granulator, and then dried to form the final product.

[0003] In the production of sulfur-based compound fertilizers, the rotary drum granulator has become a key piece of equipment widely used within the industry due to its ease of operation and high production capacity. The rotating drum drives the material to tumble and agglomerate, while the addition of water or steam completes the granulation process.

[0004] Patent publication number CN217093376U discloses a compound fertilizer drum granulation device with a screening function. This compound fertilizer drum granulation device aims to address the technical problems of conventional compound fertilizer drum granulation devices, which generally lack a screening function, are difficult to quickly disassemble and assemble, and are difficult to quickly screen to obtain fertilizer granules of different particle sizes. The compound fertilizer drum granulation device comprises a drum granulator body and a movable plate movably arranged in front of the drum granulator body; a first support seat is movably arranged below the drum granulator body, a first fixed cylinder is fixedly mounted on the upper end of the first support seat, a fixed plate is fixedly mounted on the front end of the first support seat, and a first trough is fixedly opened at the front end of the fixed plate. The compound fertilizer drum granulation device has a screening function, and the screening structure can be quickly disassembled and assembled. When the vibrator is turned on, the fertilizer granules on the movable plate can be screened into a collection box through four screens of different apertures.

[0005] The existing technology has the following defects:

[0006] Due to the high viscosity of the raw materials used in the production of sulfur-based compound fertilizers, or due to factors such as improper humidity control, unreasonable temperature in the granulation drum, and excessive material residence time during the production process, the materials are very likely to adhere to the inner wall of the drum granulator. Material adhesion to the wall will not only lead to a decline in particle quality, uneven particle size, irregular shape, and other problems, thereby reducing the market competitiveness of the product, but will also increase the rotational resistance of the drum and increase the load on the equipment. At the same time, an uneven material layer will form on the inner wall of the drum, which will cause uneven force on the drum during rotation, aggravating the wear of the inner wall of the drum and components such as bearings, shortening the service life of the equipment and increasing the maintenance cost of the equipment. Summary of the Invention

[0007] In view of the problem in the prior art that materials are very likely to adhere to the inner wall of a rotary drum granulator, a granulator equipment and a processing method based on the processing of sulfur-based compound fertilizer are proposed.

[0008] The present application provides a granulator device and a processing method based on the processing of sulfur-based compound fertilizer, the purpose of which is to remove materials adhering to the inner wall of a rotary drum granulator.

[0009] The technical solution of the present invention is: a granulator equipment based on sulfur-based compound fertilizer processing, comprising a base, a rotating seat group arranged on the top of the base, a granulation drum arranged above the rotating seat group, further comprising mounting seats arranged at both ends of the base, and a cleaning assembly arranged inside the granulation drum, the cleaning assembly specifically comprising a rotating sleeve arranged inside the two mounting seats, a rotating shaft arranged between the two rotating sleeves, a scraping rod and a rotating disk arranged outside the rotating shaft, ten rotating rods arranged in a circular array outside the rotating disk, the rotating disk being divided into ten travel units by the ten rotating rods, and a toggle rod arranged at both ends of the granulation drum;

[0010] The length of the scraping rod is the same as that of the granulating cylinder. The scraping rod fits the inner wall of the granulating cylinder. The rotating disks are distributed at both ends of the scraping rod. The toggle rod is located on the rotation track of the rotating rod.

[0011] Furthermore, a limiting member is provided between the rotating sleeve and the rotating shaft, and the limiting member specifically includes a connecting sleeve provided at both ends of the rotating shaft, a locking bolt inserted between the connecting sleeve and the rotating shaft, a limiting groove arranged in a circular array on the outside of the connecting sleeve, a mounting groove passing through the outside of the rotating sleeve, a mounting sleeve provided inside the mounting groove, a limiting bolt and a limiting spring provided inside the mounting sleeve;

[0012] The connecting sleeve is rotatably connected to the inner side of the rotating sleeve, the number of the limiting grooves is the same as that of the rotating rod, the installation grooves are butted against the limiting grooves, and the limiting bolts extend out of the installation sleeve and into the limiting grooves.

[0013] Furthermore, the toggle rod rotates around the central axis of the granulation cylinder.

[0014] Furthermore, the outer side of the scraping rod is wrapped with an elastic sleeve, and both ends of the elastic sleeve are fixedly connected to the scraping rod.

[0015] Furthermore, the cleaning assembly further comprises an inner cavity opened inside the scraping rod, an elastic diaphragm arranged inside the inner cavity, and a communicating hole opened outside the scraping rod;

[0016] The elastic diaphragm divides the inner space of the inner cavity into two independent spaces, X and Y. The X space is filled with an adjusting filler, and the Y space is filled with a supplementary filler. The connecting hole connects the Y space and the inner space of the elastic sleeve.

[0017] Furthermore, the outer contour of the scraping rod protrudes downward and fits against the inner wall of the granulation cylinder, and the protruding portion is in the shape of an inverted triangle.

[0018] Furthermore, when the scraping rod protrudes vertically downward, one of the rotating rods on the outer side of the rotating disk also remains in a vertically downward state.

[0019] Furthermore, the mounting seat is wrapped around both ends of the granulation cylinder, and a feed port is provided on the side of the mounting seat on one side, and a discharge port is provided below the mounting seat on the other side.

[0020] A method for processing sulfur-based compound fertilizer comprises the following steps:

[0021] Step 1: Prepare raw materials: Accurately weigh basic fertilizers such as potassium sulfate, urea, monoammonium phosphate or diammonium phosphate, and other additives such as anti-caking agents and conditioners according to the proportion.

[0022] Step 2: Mix ingredients: put the prepared raw materials into the mixer and mix them thoroughly.

[0023] Step 3: Granulation: Feed the mixed material into the granulation drum of the rotary drum granulator, and at the same time add an appropriate amount of water or steam into the granulation drum, and control the humidity in the granulation drum at 16% and the temperature at 60°C.

[0024] The granulating drum of the rotary drum granulator rotates at a speed of 15 rpm. The materials continuously roll and collide in the granulating drum. Under the action of friction and centripetal force, the materials gradually agglomerate into granules. As the granules roll in the granulating drum, they continuously absorb the surrounding fine powder, causing the granules to gradually grow larger.

[0025] Step 4: Screening: The granular material coming out of the granulating cylinder of the rotary drum granulator needs to be screened using a vibrating screen or a drum screen to classify the particles into different grades according to their size.

[0026] Step 5: Return material processing: The fine powder and small particles that do not meet the particle size requirements generated during the screening process are returned to the granulation cylinder of the rotary drum granulator and granulated together with new materials.

[0027] Step 6: Drying: The sieved particles containing a certain amount of moisture are put into a rotary dryer, and hot air is used as the drying medium to reduce the moisture content of the particles to below 3%.

[0028] Step 7: Cooling: Use a countercurrent cooler to reduce the temperature of the dried material to below 40°C.

[0029] Step 8, coating: Spray coating agents such as mineral oil, paraffin, polyvinyl alcohol, etc. evenly on the surface of the particles to form a thin protective film.

[0030] Beneficial effects of the present invention:

[0031] 1. By setting up the mounting base to completely wrap the two ends of the granulating cylinder, it can prevent the material that is constantly turning in the granulating cylinder from floating out during operation, which is beneficial to improving the working environment and protecting the health of the staff near the equipment.

[0032] 2. By setting up a cleaning component, the scraping rod is attached to the inner wall of the granulation cylinder, which can scrape off the material adhering to the inner wall of the granulation cylinder. This ensures the cleanliness of the inside of the granulation cylinder, is beneficial to improving the quality of processed material particles, reducing the energy consumption of the equipment, and also protecting the equipment. At the same time, each rotation of the granulation cylinder will drive the scraping rod to deflect a certain angle, so that the scraping rod is in intermittent contact with the granulation cylinder, which can reduce the wear on the inside of the granulation cylinder.

[0033] 3. By setting a limiting piece, the limit bolt is pressed into the limit groove, so that the rotating shaft and the scraping rod are fixed through the connecting sleeve, so that the scraping rod can stay stably after the rotation is completed, ensuring the stability of the equipment operation.

[0034] 4. By placing fillers in the inner cavity, when the protruding part of the scraper rod completes the scraping work and starts to rotate upward, the adjustable filler in the X space presses the supplementary filler in the Y space, causing the supplementary filler to enter the interlayer space. The elastic sleeve expands outward, separating the material adhering to its surface, thus ensuring the scraper rod's continuous scraping ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A perspective view of a granulator device according to the present invention;

[0036] Figure 2 It is a schematic diagram of the granulation cylinder of the present invention;

[0037] Figure 3 This is a schematic diagram of the mounting base of the present invention;

[0038] Figure 4 A schematic diagram of a cleaning component of the present invention;

[0039] Figure 5 For the present invention Figure 2 Enlarged view of point A in the middle;

[0040] Figure 6 For the present invention Figure 3 Enlarged view of point B in the middle;

[0041] Figure 7 This is a disassembled diagram of the cleaning assembly of the present invention;

[0042] Figure 8 This is a motion trajectory diagram of the toggle lever of the present invention;

[0043] Figure 9 A top view of the present invention;

[0044] Figure 10 For the present invention Figure 9 Cross-sectional view at EE;

[0045] Figure 11 For the present invention Figure 10 Enlarged view of point C in the middle;

[0046] Figure 12 For the present invention Figure 11 Enlarged view of point D in the middle;

[0047] Figure 13 A side view of a scraping rod according to the present invention;

[0048] Figure 14 This is a schematic diagram of the cleaning assembly of the present invention in a scraping state;

[0049] Figure 15 This is a schematic diagram of the cleaning component of the present invention in a stopped scraping state;

[0050] Figure 16 For the present invention Figure 14 Schematic diagram of the cleaning component;

[0051] Figure 17 For the present invention Figure 15 Schematic diagram of the cleaning components.

[0052] In the picture:

[0053] 1. Base; 2. Rotating seat assembly; 3. Granulating cylinder; 4. Mounting seat; 5. Cleaning assembly; 51. Rotating sleeve; 52. Rotating shaft; 53. Scraping rod; 54. Rotating disk; 55. Rotating rod; 56. Toggle rod; 57. Limiting piece; 571. Connecting sleeve; 572. Locking bolt; 573. Limiting groove; 574. Mounting groove; 575. Mounting sleeve; 576. Limiting bolt; 577. Limiting spring; 58. Elastic sleeve; 59. Inner cavity; 510. Elastic diaphragm; 511. Connecting hole. DETAILED DESCRIPTION

[0054] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0055] Example 1, with reference to Figure 1-12, which is the first embodiment of the present invention, provides a granulator equipment based on sulfur-based compound fertilizer processing, including a base 1, a rotating seat group 2 arranged on the top of the base 1, a granulation cylinder 3 arranged above the rotating seat group 2, and also includes mounting seats 4 arranged at both ends of the base 1, and a cleaning component 5 arranged inside the granulation cylinder 3. The cleaning component 5 specifically includes a rotating sleeve 51 arranged inside the two mounting seats 4, a rotating shaft 52 arranged between the two rotating sleeves 51, a scraping rod 53 and a rotating disk 54 arranged outside the rotating shaft 52, ten rotating rods 55 distributed in a circular array outside the rotating disk 54, and the rotating disk 54 is divided into ten moving units by the ten rotating rods 55, and a toggle rod 56 arranged at both ends of the granulation cylinder 3.

[0056] Specifically, the rotating seat group 2 is fixedly connected to the base 1 by bolts, the granulation cylinder 3 is set at an angle, and a rotating ring and a gear ring are fixedly connected to the outside of the granulation cylinder 3. The rotating seat group 2 lifts the granulation cylinder 3 and assists the granulation cylinder 3 to rotate through the rotating ring. The driving motor is fixedly installed on the top of the base 1 by bolts, and the driving motor controls the rotation of the granulation cylinder 3 through the gear ring. The mounting seat 4 is welded to the base 1, and the mounting seat 4 is wrapped around the two ends of the granulation cylinder 3, and a feed port is opened on the side of the mounting seat 4 on one side, and a discharge port is opened below the mounting seat 4 on the other side. A spraying device is installed below the feed port and passes through the mounting seat 4.

[0057] By providing the mounting base 4 to completely wrap both ends of the granulating cylinder 3, the material constantly turning in the granulating cylinder 3 can be prevented from scattering during operation, which is beneficial to improving the working environment and protecting the health of workers near the equipment.

[0058] The rotating sleeve 51 is welded to the mounting seat 4, the rotating shaft 52 is rotatably connected to the inner side of the rotating sleeve 51, the scraping rod 53 is fixedly connected to the outer side of the rotating shaft 52, the length of the scraping rod 53 is the same as that of the granulation cylinder 3, the scraping rod 53 is in contact with the inner wall of the granulation cylinder 3, the rotating disk 54 is distributed at both ends of the scraping rod 53, the rotating disk 54 is fixed to the rotating shaft 52 by bolts, the rotating rod 55 is fixedly connected to the rotating disk 54, the toggle rod 56 is inserted into the granulation cylinder 3 and fixed by threads, and the toggle rod 56 is located on the rotation trajectory of the rotating rod 55; the outer contour of the scraping rod 53 protrudes downward and fits the inner wall of the granulation cylinder 3, and the protruding part is an inverted triangle, which is conducive to improving the scraping effect of the scraping rod 53.

[0059] By setting up the cleaning component 5, the scraping rod 53 is attached to the inner wall of the granulation cylinder 3, and the material adhering to the inner wall of the granulation cylinder 3 can be scraped off, thereby ensuring the cleanliness of the inside of the granulation cylinder 3, which is beneficial to improving the quality of the processed material particles, reducing the energy consumption of the equipment, and also protecting the equipment. At the same time, each rotation of the granulation cylinder 3 will drive the scraping rod 53 to deflect by a certain angle, so that the scraping rod 53 is in intermittent contact with the granulation cylinder 3, which can reduce the wear on the inner side of the granulation cylinder 3.

[0060] A limiting member 57 is provided between the rotating sleeve 51 and the rotating shaft 52. The limiting member 57 specifically includes a connecting sleeve 571 provided at both ends of the rotating shaft 52, a locking bolt 572 inserted between the connecting sleeve 571 and the rotating shaft 52, a limiting groove 573 distributed in a ring array on the outside of the connecting sleeve 571, a mounting groove 574 passing through the outside of the rotating sleeve 51, a mounting sleeve 575 provided on the inside of the mounting groove 574, and a limiting bolt 576 and a limiting spring 577 provided on the inside of the mounting sleeve 575.

[0061] Specifically, the connecting sleeve 571 is rotatably connected to the inner side of the rotating sleeve 51, and the connecting sleeve 571 is sleeved on the outer side of the rotating shaft 52. The locking bolt 572 passes through the connecting sleeve 571 and the rotating shaft 52 to fix the two. The number of limiting grooves 573 is the same as that of the rotating rod 55. The limiting grooves 573 are hemispherical. The mounting groove 574 is connected to the limiting groove 573. The mounting sleeve 575 is threadedly installed in the mounting groove 574. The limiting bolt 576 extends out of the mounting sleeve 575 and enters the limiting groove 573, and the end entering the limiting groove 573 is hemispherical. One end of the limiting spring 577 is connected to the inner wall of the mounting sleeve 575, and the other end is connected to the limiting bolt 576.

[0062] By setting the limiting member 57, the limiting bolt 576 is pressed into the limiting groove 573, so that the rotating shaft 52 and the scraping rod 53 are fixed through the connecting sleeve 571, so that the scraping rod 53 can stay stably after the rotation is completed, thereby ensuring the stability of the equipment operation.

[0063] When the scraping rod 53 protrudes vertically downward, one of the rotating rods 55 on the outer side of the rotating disk 54 also remains in a vertical downward state; the angle between two adjacent rotating rods 55 is α degrees, that is, one travel unit is α degrees, and the toggle rod 56 rotates around the central axis of the granulating cylinder 3, such as Figure 8 As shown, the toggle rod 56 rotates one circle, driving the rotating disk 54 to rotate α degrees through the rotating rod 55.

[0064] Example 2, reference Figure 2-Figure 4 、 Figure 13-Figure 17, which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the outer side of the scraping rod 53 is wrapped with an elastic sleeve 58, and the protruding tip apex area of ​​the scraping rod 53 is not wrapped by the elastic sleeve 58 and is exposed to the outside. The elastic sleeve 58 is made of rubber, and both ends of the elastic sleeve 58 are fixedly connected to the scraping rod 53, forming a closed interlayer space between the elastic sleeve 58 and the scraping rod 53.

[0065] The cleaning assembly 5 further includes an inner cavity 59 formed inside the scraping rod 53 , an elastic diaphragm 510 disposed inside the inner cavity 59 , and a communicating hole 511 formed outside the scraping rod 53 .

[0066] Specifically, the elastic diaphragm 510 divides the internal space of the inner cavity 59 into two independent spaces, X and Y, and the X space is filled with an adjustment filler, which can be concentrated salt water or glycerin, and the Y space is filled with a supplementary filler, which can be pure water or lubricating oil. The X space is located on the inner side of the protruding part of the scraping rod 53, and the connecting hole 511 connects the Y space and the inner space of the elastic sleeve 58.

[0067] By providing a filler in the inner cavity 59, when the protruding portion of the scraper rod 53 completes the scraping work and begins to rotate upward, the adjustable filler in the X space presses the supplementary filler in the Y space, causing the supplementary filler to enter the interlayer space. The elastic sleeve 58 expands outward, separating the material adhered to its surface, thereby ensuring that the scraper rod 53 has a continuous scraping ability.

[0068] The remaining structures are the same as those of Example 1.

[0069] Based on Examples 1-2, the working principle of the granulator equipment based on sulfur-based compound fertilizer processing of the present invention is as follows:

[0070] Start the drive motor to drive the granulation cylinder 3 to start rotating, put the material into the granulation cylinder 3 from the feed hole, and then use the spraying equipment to spray atomized water droplets. As the granulation cylinder 3 rotates, the material gradually forms particles, and the particles slide along the inner wall of the granulation cylinder 3 and are finally discharged through the discharge port.

[0071] When the granulating cylinder 3 rotates, its inner wall will continuously pass under the scraping rod 53, so that the scraping rod 53 will scrape off the material adhering to the inner wall of the granulating cylinder 3. In this process, some material will adhere to the outside of the elastic sleeve 58 on the outside of the scraping rod 53. At the same time, the granulating cylinder 3 will drive the toggle rod 56 to rotate during its rotation. When the toggle rod 56 passes under the rotating disk 54, the toggle rod 56 will contact the rotating rod 55, and the rotating disk 54 will be pushed to rotate by the rotating rod 55. After the toggle rod 56 pushes the rotating rod 55 to rotate one grid, it will separate from it. During the rotation of the rotating disk 54, the rotating shaft 52 The scraping rod 53 is driven to rotate a certain angle so as to separate it from the inner wall of the granulation cylinder 3. The connecting sleeve 571 also rotates with the rotating shaft 52. During the rotation of the rotating shaft 52, the limiting bolt 576 will be pushed out of the limiting groove 573 first, and then the limiting bolt 576 will be pushed into the next limiting groove 573 along with the rotation limiting spring 577 of the connecting sleeve 571, locking the connecting sleeve 571 in this position. The rotating shaft 52 and the scraping rod 53 are locked synchronously. In this way, every time the granulation cylinder 3 rotates one circle, the toggle rod 56 will drive the scraping rod 53 to rotate a certain angle so that it is in intermittent contact with the granulation cylinder 3.

[0072] As the scraper rod 53 rotates and its protruding portion begins to move upward, the regulating filler in the X space, under the action of gravity, presses the elastic diaphragm 510 against the Y space. The supplementary filler in the Y space is squeezed and flows through the connecting hole 511 into the interlayer space, expanding the interlayer space. The elastic sleeve 58 expands and stretches outward during this stretching. The stretching generates elastic stress due to the stretching of the molecular chains. The change in surface curvature causes the adhered material to deform cooperatively, as the material's deformation capacity is weaker than that of rubber, resulting in stress concentration at the interface. Simultaneously, the stretching weakens the physical adsorption force between the rubber and the material due to the increased molecular spacing. The mechanical engagement also loses force due to the flattening of the rubber surface protrusions and the crushing of the material, causing the material attached to the surface to detach. When the protruding portion of the scraper rod 53 rotates downward, the supplementary filler flows back into the Y space. The gravity of the supplementary filler also acts on the elastic diaphragm 510, removing the pressure from the regulating filler and supplementary filler. The elastic sleeve 58 contracts, squeezing the supplementary filler in the interlayer space into the Y space.

[0073] Example 3, reference Figure 1-12 , as a third embodiment of the present invention, provides: a method for processing sulfur-based compound fertilizer, comprising the following steps:

[0074] Step 1: Prepare raw materials: Accurately weigh basic fertilizers such as potassium sulfate, urea, monoammonium phosphate or diammonium phosphate, and other additives such as anti-caking agents and conditioners according to the proportion.

[0075] Step 2: Mix ingredients: put the prepared raw materials into the mixer and mix them thoroughly.

[0076] Step 3: Granulation: The mixed material is fed into the granulation drum 3 of the rotary drum granulator, and at the same time, an appropriate amount of water or steam is added into the granulation drum 3 to control the humidity in the granulation drum 3 at 16% and the temperature at 60°C.

[0077] The granulating drum 3 of the rotary drum granulator rotates at a speed of 15 rpm, and the materials continuously roll and collide in the granulating drum 3; under the action of friction and centripetal force, the materials gradually agglomerate into granules; as the granules roll in the granulating drum 3, they will continuously absorb the surrounding fine powder, causing the granules to gradually grow larger.

[0078] Step 4: Screening: The granular material coming out of the granulating drum 3 of the rotary drum granulator needs to be screened using a vibrating screen or a drum screen to classify the particles into different grades according to their size.

[0079] Step 5: Return material processing: The fine powder and small particles that do not meet the particle size requirements generated during the screening process are used as return materials and are sent back to the granulation cylinder 3 of the rotary drum granulator to be granulated together with new materials.

[0080] Step 6: Drying: The sieved particles containing a certain amount of moisture are put into a rotary dryer, and hot air is used as the drying medium to reduce the moisture content of the particles to below 3%.

[0081] Step 7: Cooling: Use a countercurrent cooler to reduce the temperature of the dried material to below 40°C.

[0082] Step 8, coating: Spray coating agents such as mineral oil, paraffin, polyvinyl alcohol, etc. evenly on the surface of the particles to form a thin protective film.

[0083] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A granulator device for processing sulfur-based compound fertilizer, comprising a base (1), a rotating seat group (2) arranged on the top of the base (1), and a granulating cylinder (3) arranged above the rotating seat group (2), characterized in that: The device further comprises mounting seats (4) arranged at both ends of the base (1), a cleaning assembly (5) arranged inside the granulation cylinder (3), the cleaning assembly (5) specifically comprising a rotating sleeve (51) arranged inside the two mounting seats (4), a rotating shaft (52) arranged between the two rotating sleeves (51), a scraping rod (53) and a rotating disk (54) arranged outside the rotating shaft (52), ten rotating rods (55) arranged outside the rotating disk (54) and distributed in a circular array, the rotating disk (54) being divided into ten moving units by the ten rotating rods (55), and a toggle rod (56) arranged at both ends of the granulation cylinder (3); The scraping rod (53) has the same length as the granulation cylinder (3), the scraping rod (53) is in contact with the inner wall of the granulation cylinder (3), the rotating disks (54) are located at both ends of the scraping rod (53), and the toggle rod (56) is located on the rotation track of the rotating rod (55); The outer side of the scraping rod (53) is wrapped with an elastic sleeve (58), and both ends of the elastic sleeve (58) are fixedly connected to the scraping rod (53); The cleaning assembly (5) further includes an inner cavity (59) formed inside the scraping rod (53), an elastic diaphragm (510) disposed inside the inner cavity (59), and a communication hole (511) formed outside the scraping rod (53); The elastic diaphragm (510) divides the inner space of the inner cavity (59) into two independent spaces, X and Y. The X space is filled with an adjustment filler, and the Y space is filled with a supplementary filler. The connecting hole (511) connects the Y space with the inner space of the elastic sleeve (58).

2. The granulator equipment based on sulfur-based compound fertilizer processing according to claim 1, characterized in that: A limiting member (57) is provided between the rotating sleeve (51) and the rotating shaft (52), and the limiting member (57) specifically includes a connecting sleeve (571) provided at both ends of the rotating shaft (52), a locking bolt (572) interspersed between the connecting sleeve (571) and the rotating shaft (52), a limiting groove (573) arranged in a circular array on the outside of the connecting sleeve (571), a mounting groove (574) extending through the outside of the rotating sleeve (51), a mounting sleeve (575) provided inside the mounting groove (574), a limiting bolt (576) and a limiting spring (577) provided inside the mounting sleeve (575); The connecting sleeve (571) is rotatably connected to the inner side of the rotating sleeve (51), the number of the limiting grooves (573) is the same as that of the rotating rod (55), the mounting groove (574) is docked with the limiting groove (573), and the limiting bolt (576) extends out of the mounting sleeve (575) and enters the limiting groove (573).

3. The granulator equipment based on sulfur-based compound fertilizer processing according to claim 2, characterized in that: The toggle rod (56) rotates around the central axis of the granulation cylinder (3).

4. The granulator equipment based on sulfur-based compound fertilizer processing according to claim 1, characterized in that: The outer contour of the scraping rod (53) protrudes downward and fits against the inner wall of the granulation cylinder (3), and the protruding portion is in the shape of an inverted triangle.

5. The granulator equipment based on sulfur-based compound fertilizer processing according to claim 4 is characterized in that: When the scraping rod (53) protrudes vertically downward, one of the rotating rods (55) outside the rotating disk (54) also remains in a vertically downward state.

6. The granulator equipment based on sulfur-based compound fertilizer processing according to claim 1 is characterized in that: The mounting seat (4) is wrapped around both ends of the granulation cylinder (3), and a feed port is provided on the side of the mounting seat (4) on one side, and a discharge port is provided below the mounting seat (4) on the other side.

7. A method for processing sulfur-based compound fertilizer, using the granulator for processing sulfur-based compound fertilizer according to claim 1, characterized in that: The following steps are involved: Step 1: Raw material preparation: weigh the basic fertilizer and additives accurately according to the proportion and mix them evenly; Step 2: Mixing ingredients: put the prepared raw materials into the mixer and mix them thoroughly; Step 3, granulation: the mixed material is fed into the granulation drum (3), and an appropriate amount of water or steam is added at the same time. The granulation drum (3) rotates, and the material continuously rolls and collides inside. Under the action of friction and centripetal force, the material gradually agglomerates into granules.

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