Granulator equipment based on sulfur-based compound fertilizer processing and processing method

Abstract

The invention relates to the technical field of granulating equipment, and discloses granulating machine equipment based on sulfur-based compound fertilizer processing and a processing method.The granulating machine equipment based on sulfur-based compound fertilizer processing comprises a base, a rotating seat set arranged at the top of the base and a granulating cylinder arranged above the rotating seat set; the cleaning assembly specifically comprises rotating sleeves arranged on the inner sides of the two mounting seats, a rotating shaft arranged between the two rotating sleeves, and a scraping rod and a rotating disc which are arranged on the outer side of the rotating shaft. According to the granulating machine equipment based on sulfur-based compound fertilizer processing, the cleaning assembly and the scraping rod are arranged to be attached to the inner wall of the granulating cylinder, so that materials adhered to the inner wall of the granulating cylinder can be scraped, the cleanness of the interior of the granulating cylinder is guaranteed, the quality of processed material particles is improved, the energy consumption of the equipment is reduced, and the production efficiency is improved. And the equipment is also protected.

Description

Technical Field

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

[0002] Sulfur-based compound fertilizer refers to a compound fertilizer in which the potassium source is potassium sulfate, or potassium chloride is dechlorinated to make the compound fertilizer, and the chloride ion content cannot exceed 3%. Sulfur-based compound fertilizers have high and balanced nutrient content, low chlorine content, pollution-free, good fertilizer efficiency, and high utilization rate. When producing sulfur-based compound fertilizers, various raw materials are mixed, and then a drum granulator is used to make the raw materials into granules, and then dried and formed.

[0003] In the production field of sulfur-based compound fertilizers, the drum granulator has become a key equipment widely used in the industry due to its advantages such as simple operation and large production capacity. It drives the material to tumble and agglomerate through the rotation of the drum, and realizes the granulation process by adding moisture or steam.

[0004] In the patent with the publication number CN217093376U, a compound fertilizer drum granulation device with a screening function is disclosed. This compound fertilizer drum granulation device aims to solve the technical problems that the existing compound fertilizer drum granulation device usually lacks a screening function, the screening structure is difficult to disassemble and assemble quickly, and it is difficult to quickly screen out fertilizer particles with different particle sizes. The compound fertilizer drum granulation device includes 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 installed at the upper end of the first support seat, a fixed plate is fixedly installed at the front end of the first support seat, and a first groove is fixedly opened at the front end of the fixed plate. This compound fertilizer drum granulation device has a screening function, the screening structure can be quickly disassembled and assembled, and by turning on the vibrator, the fertilizer particles on the movable plate can be screened into the collection box through four sieves with different apertures.

[0005] The prior art has the following defects: Due to the high viscosity of the raw materials for producing sulfur-based compound fertilizers, or due to factors such as improper humidity control, unreasonable temperature in the granulation cylinder, and too long residence time of the materials during the production process, the materials are extremely easy to adhere to the inner wall of the drum granulator; the adhesion of the materials to the wall will not only cause the quality of the granules to decline, resulting in problems such as uneven particle size and irregular shape, reducing the market competitiveness of the products, but also increase the rotational resistance of the drum, increasing the equipment load. At the same time, an uneven material layer is formed on the inner wall of the drum, which will cause uneven stress during the rotation of the drum, exacerbate the wear of components such as the inner wall of the drum and the bearings, shorten the service life of the equipment, and increase the maintenance cost of the equipment. Summary of the Invention

[0006] In view of the problem in the prior art that materials are very likely to adhere to the inner wall of a drum granulator, a granulator device and a processing method based on sulfur-based compound fertilizer processing are proposed.

[0007] The present application provides a granulator device and a processing method based on sulfur-based compound fertilizer processing, the purpose of which is to remove materials adhered to the inner wall of a rotary drum granulator.

[0008] The technical scheme of the present invention is: a granulator device based on sulfur-based compound fertilizer processing, comprising a base, a rotating seat group arranged on the top of the base, a granulating cylinder arranged above the rotating seat group, and also comprising mounting seats arranged at both ends of the base, and a cleaning assembly arranged inside the granulating cylinder, wherein the cleaning assembly specifically comprises 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 outside the rotating disk and distributed in a circular array, the rotating disk is divided into ten travel units by the ten rotating rods, and a toggle rod arranged at both ends of the granulating cylinder; 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 rotating track of the rotating rod.

[0009] 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 penetrating the outside of the rotating sleeve, a mounting sleeve arranged on the inside of the mounting groove, a limiting bolt and a limiting spring arranged on the inside of the mounting sleeve; 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 enter into the limiting grooves.

[0010] Furthermore, the toggle rod rotates around the central axis of the granulation cylinder.

[0011] 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.

[0012] Furthermore, the cleaning assembly also includes an inner cavity opened inside the scraping rod, an elastic diaphragm arranged inside the inner cavity, and a connecting hole opened outside the scraping rod; 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, the Y space is filled with a supplementary filler, and the connecting hole connects the Y space and the inner space of the elastic sleeve.

[0013] Furthermore, the outer contour of the scraper rod protrudes downward to fit the inner wall of the granulation cylinder, and the protruding portion is in an inverted triangle shape.

[0014] Furthermore, when the scraping rod protrudes in a vertically downward direction, one of the rotating rods on the outer side of the rotating disk also maintains a vertically downward state.

[0015] Furthermore, the mounting seat is wrapped around the two ends of the granulation cylinder, and a feed port is opened on the side of the mounting seat on one side, and a discharge port is opened below the mounting seat on the other side.

[0016] A method for processing sulfur-based compound fertilizer comprises the following steps: Step 1, raw material preparation: accurately weigh basic fertilizers such as potassium sulfate, urea, monoammonium phosphate or diammonium phosphate and other additives such as anti-caking agents, conditioners, etc. according to the proportion.

[0017] Step 2: Mixing ingredients: Put the prepared raw materials into the mixer and mix them thoroughly.

[0018] Step 3, granulation: send the mixed materials into the granulation drum of the rotary drum granulator, add 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.

[0019] The granulating drum of the rotary drum granulator rotates at a speed of 15 rpm, and the materials keep rolling and colliding in the granulating drum. Under the action of friction and centripetal force, the materials gradually agglomerate into particles. As the particles roll in the granulating drum, they will continuously absorb the surrounding fine powder, causing the particles to gradually increase in size.

[0020] Step 4: Screening: The granular material coming out of the granulation drum 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.

[0021] Step 5: Return material processing: The fine powder produced during the screening process and the small particles that do not meet the particle size requirements are returned to the granulation cylinder of the rotary drum granulator as return materials and granulated together with new materials.

[0022] Step 6, drying: put the sieved particles containing a certain amount of moisture into a rotary dryer, use hot air as the drying medium, and reduce the moisture content of the granular material to less than 3%.

[0023] Step 7, cooling: Use a countercurrent cooler to reduce the temperature of the dried material to below 40°C.

[0024] 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.

[0025] Beneficial effects of the present invention: 1. By setting the mounting seat to completely wrap the two ends of the granulation cylinder, it can prevent the material that is constantly turning in the granulation cylinder from floating out during work, which is beneficial to improve the working environment and protect the health of the staff near the equipment.

[0026] 2. By setting up the cleaning component, the scraper rod is attached to the inner wall of the granulation cylinder, and the material adhering to the inner wall of the granulation cylinder can be scraped off, thus ensuring the cleanliness of the inside of the granulation cylinder, which is beneficial to improving the quality of processed material particles, reducing the energy consumption of the equipment, and protecting the equipment. At the same time, each rotation of the granulation cylinder will drive the scraper rod to deflect a certain angle, so that the scraper rod is in intermittent contact with the granulation cylinder, which can reduce the wear on the inside of the granulation cylinder.

[0027] 3. By setting a limiting piece, the limit bolt is pressed into the limit groove, so that the rotating shaft and the scraper rod are fixed by the connecting sleeve, so that the scraper rod can stay stably after the rotation is completed, ensuring the stability of the equipment operation.

[0028] 4. By setting fillers in the inner cavity, when the protruding part of the scraper rod completes the scraping work and starts to rotate upward, the adjustment filler in the X space presses the supplementary filler in the Y space, so that the supplementary filler enters the interlayer space, and the elastic sleeve expands outward to separate the material adhered to its surface, so as to ensure that the scraper rod has a continuous scraping ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A three-dimensional diagram of a granulator device according to the present invention; Figure 2 It is a schematic diagram of a granulation cylinder of the present invention; Figure 3 It is a schematic diagram of the mounting seat of the present invention; Figure 4 It is a schematic diagram of the cleaning component of the present invention; Figure 5 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 6 For the present invention Figure 3 Enlarged view of point B in the middle; Figure 7 This is a disassembled diagram of the cleaning assembly of the present invention; Figure 8 It is the motion trajectory diagram of the toggle lever of the present invention; Figure 9 A top view of the present invention; Figure 10 For the present invention Figure 9 Sectional view at EE; Figure 11 For the present invention Figure 10 Enlarged view of point C in the middle; Figure 12For the present invention Figure 11 Enlarged view at position D in the present invention; Figure 13 Side view of the scraping rod of the present invention; Figure 14 Schematic diagram of the scraping state of the cleaning component of the present invention; Figure 15 Schematic diagram of the cleaning component of the present invention in the stopped scraping state; Figure 16 For the present invention Figure 14 Schematic diagram of the cleaning component in the present invention; Figure 17 For the present invention Figure 15 Schematic diagram of the cleaning component in the present invention.

[0030] In the figure: 1. Base; 2. Rotating seat group; 3. Granulating cylinder; 4. Mounting seat; 5. Cleaning component; 51. Rotating sleeve; 52. Rotating shaft; 53. Scraping rod; 54. Rotating disk; 55. Rotating rod; 56. Poking rod; 57. Limiting part; 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. Communication hole. Specific embodiments

[0031] To make the above objects, features, and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings of the specification.

[0032] Example 1, referring to Figure 1-12 , which is the first embodiment of the present invention, provides a granulating machine device for the processing of sulfur-based compound fertilizers, including a base 1, a rotating seat group 2 arranged on the top of the base 1, a granulating cylinder 3 arranged above the rotating seat group 2, and further including mounting seats 4 arranged at both ends of the base 1, and a cleaning component 5 arranged inside the granulating 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 arranged in a circumferential array outside the rotating disk 54, dividing the rotating disk 54 into ten traveling units by the ten rotating rods 55, and poking rods 56 arranged at both ends of the granulating cylinder 3.

[0033] Specifically, the rotating seat group 2 is fixedly connected to the base 1 by bolts, the granulation cylinder 3 is inclined, and a rotating ring and a gear ring are fixedly connected to the outer side of the granulation cylinder 3. The rotating seat group 2 lifts the granulation cylinder 3 and assists the rotation of the granulation cylinder 3 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. 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 that passes through the mounting seat 4 is installed below the feed port.

[0034] By providing the mounting seat 4 to completely wrap the two ends of the granulation cylinder 3, it is possible to prevent the material that is constantly turning in the granulation cylinder 3 from scattering during operation, which is beneficial to improving the working environment and playing a protective role in protecting the health of workers near the equipment.

[0035] 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 scraper rod 53 is fixedly connected to the outer side of the rotating shaft 52, the length of the scraper rod 53 is the same as that of the granulation cylinder 3, the scraper rod 53 is fitted with the inner wall of the granulation cylinder 3, the rotating disk 54 is distributed at both ends of the scraper 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, the toggle rod 56 is located on the rotation trajectory of the rotating rod 55; the outer contour of the scraper 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 scraper rod 53.

[0036] 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 processed material particles, reducing the energy consumption of the equipment, and 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.

[0037] 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 arranged in a ring array on the outside of the connecting sleeve 571, a mounting groove 574 penetrating the outside of the rotating sleeve 51, a mounting sleeve 575 provided on the inner side of the mounting groove 574, and a limiting bolt 576 and a limiting spring 577 provided on the inner side of the mounting sleeve 575.

[0038] 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.

[0039] 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 by 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.

[0040] 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 to drive the rotating disk 54 to rotate α degrees through the rotating rod 55.

[0041] Example 2, reference Figures 2-4 , Figures 13-17 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that the outer side of the scraper rod 53 is wrapped with an elastic sleeve 58, and the protruding tip apex area of the scraper 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 scraper rod 53, forming a closed interlayer space between the elastic sleeve 58 and the scraper rod 53.

[0042] The cleaning assembly 5 further includes an inner cavity 59 opened inside the scraping rod 53 , an elastic diaphragm 510 disposed inside the inner cavity 59 , and a connecting hole 511 opened outside the scraping rod 53 .

[0043] 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 adjusting filler, which may be concentrated salt water or glycerin, and the Y space is filled with a supplementary filler, which may 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.

[0044] By setting a filling material inside the inner cavity 59, when the scraping rod 53 starts to rotate upward after completing the scraping work on the protruding part, the adjusting filling material in the X space presses the supplementary filling material in the Y space, causing the supplementary filling material to enter the interlayer space, and the elastic sleeve 58 expands outward, making the materials adhered to its surface detached. In this way, the continuous scraping ability of the scraping rod 53 can be ensured.

[0045] The remaining structures are the same as those in Embodiment 1.

[0046] Combining Embodiments 1-2, the working principle of the granulator equipment of the present invention based on the processing of sulfur-based compound fertilizers is as follows: Start the driving motor to drive the granulation cylinder 3 to rotate. Put the materials into the granulation cylinder 3 from the feeding hole, and then use the spraying equipment to spray atomized water droplets. In this way, as the granulation cylinder 3 rotates, the materials gradually form particles. The particles slide along the inner wall of the granulation cylinder 3 and finally are discharged through the discharge port.

[0047] When the granulation cylinder 3 rotates, its inner wall will continuously pass under the scraping rod 53. In this way, the scraping rod 53 scrapes off the materials adhered to the inner wall of the granulation cylinder 3. During this process, some materials will adhere to the outer side of the elastic sleeve 58 on the outer side of the scraping rod 53. At the same time, the granulation cylinder 3 will drive the dialing rod 56 to rotate during the rotation process. When the dialing rod 56 passes under the rotating disk 54, the dialing rod 56 will contact the rotating rod 55 and push the rotating rod 55 to rotate through the rotating rod 55. After the dialing rod 56 pushes the rotating rod 55 to rotate one grid, it will separate from it. During the rotation of the rotating disk 54, it will drive the scraping rod 53 to rotate a certain angle through the rotating shaft 52, so that it separates 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, it will first push the limit bolt 576 out of the limit groove 573, and then as the connecting sleeve 571 rotates, the limit spring 577 will push the limit bolt 576 into the next limit groove 573 to lock 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 dialing rod 56 will drive the scraping rod 53 to rotate a certain angle, making it intermittently contact with the granulation cylinder 3.

[0048] As the scraper rod 53 rotates, when the protruding part of the scraper rod 53 starts to move upward, the regulating filler in the X space presses the elastic diaphragm 510 to invade the Y space under the action of gravity, and the supplementary filler in the Y space is squeezed and flows into the interlayer space from the connecting hole 511. The interlayer space is stretched, and the elastic sleeve 58 expands and stretches outward. During the stretching, the molecular chain stretches to generate elastic stress, and the change in surface curvature causes the attached materials to deform cooperatively. The deformation ability of the material is weaker than that of rubber, and stress concentration is formed at the interface; at the same time, the physical adsorption force between the rubber and the material is weakened due to the increase in the molecular distance, and the mechanical meshing force is also invalid due to the flattening of the rubber surface protrusions and the crushing of the material, so that the material attached to the surface is separated. When the protruding part of the scraper rod 53 rotates downward, the supplementary filler flows back into the Y space, and its gravity also acts on the elastic diaphragm 510. Without the pressure of the regulating filler and the supplementary filler, the elastic sleeve 58 contracts, and the supplementary filler in the interlayer space is squeezed into the Y space.

[0049] Example 3, reference Figure 1-12 , as the third embodiment of the present invention, provides: a method for processing sulfur-based compound fertilizer, comprising the following steps: Step 1, raw material preparation: accurately weigh basic fertilizers such as potassium sulfate, urea, monoammonium phosphate or diammonium phosphate and other additives such as anti-caking agents, conditioners, etc. according to the proportion.

[0050] Step 2: Mixing ingredients: Put the prepared raw materials into the mixer and mix them thoroughly.

[0051] Step 3, granulation: the mixed material is fed into the granulation cylinder 3 of the rotary drum granulator, and at the same time, an appropriate amount of water or steam is added into the granulation cylinder 3 to control the humidity in the granulation cylinder 3 at 16% and the temperature at 60°C.

[0052] 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 particles; as the particles roll in the granulating drum 3, they continuously absorb the surrounding fine powder, causing the particles to gradually increase in size.

[0053] Step 4: Screening: The granular material coming out of the granulation 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.

[0054] 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 3 of the rotary drum granulator as return materials and granulated together with new materials.

[0055] Step Six, Drying: Put the sieved particles containing a certain amount of moisture into a rotary dryer, use hot air as the drying medium, and reduce the moisture in the granular material to less than 3%.

[0056] Step Seven, Cooling: Use a countercurrent cooler to reduce the temperature of the dried material to below 40°C.

[0057] Step Eight, Coating: Evenly spray coating agents such as mineral oil, paraffin wax, and polyvinyl alcohol on the surface of the particles to form a thin protective film.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A granulator device based on the processing of sulfur-based compound fertilizers, comprising a base (1), a rotating seat group (2) arranged on the top of the base (1), and a granulation cylinder (3) arranged above the rotating seat group (2), characterized in that: It also includes 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 travel 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 granulating cylinder (3), the scraping rod (53) is in contact with the inner wall of the granulating 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).

2. The granulator equipment based on the processing of sulfur-based compound fertilizer 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 comprises connecting sleeves (571) provided at both ends of the rotating shaft (52), locking bolts (572) interlaced between the connecting sleeve (571) and the rotating shaft (52), limiting grooves (573) arranged on the outer side of the connecting sleeve (571) and distributed in a circular array, a mounting groove (574) penetrating the outer side of the rotating sleeve (51), a mounting sleeve (575) provided on the inner side of the mounting groove (574), and a limiting bolt (576) and a limiting spring (577) provided on the inner side of 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 butted against the limiting grooves (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 the processing of sulfur-based compound fertilizers 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 the processing of sulfur-based compound fertilizer according to claim 1, characterized in that: 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).

5. The granulator equipment based on the processing of sulfur-based compound fertilizers according to claim 4, characterized in that: The cleaning assembly (5) further comprises an inner cavity (59) opened inside the scraping rod (53), an elastic diaphragm (510) arranged inside the inner cavity (59), and a communication hole (511) opened outside the scraping rod (53); The elastic diaphragm (510) divides the internal space of the inner cavity (59) 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 (511) connects the Y space with the inner space of the elastic sleeve (58).

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

7. The granulator equipment based on the processing of sulfur-based compound fertilizers according to claim 6, characterized in that: When the scraping rod (53) protrudes in a vertically downward direction, one of the rotating rods (55) outside the rotating disk (54) also remains in a vertically downward state.

8. The granulator equipment based on the processing of sulfur-based compound fertilizer according to claim 1, wherein: The mounting seat (4) is wrapped around the two 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.

9. A processing method of sulfur-based compound fertilizer, using the granulator for processing sulfur-based compound fertilizer as described in claim 1, characterized in that, The following steps are involved: Step 1, raw material preparation: accurately weigh the basic fertilizer and additives 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 materials are fed into a granulation drum (3), and a proper amount of water or steam is added at the same time. The granulation drum (3) rotates, and the materials continuously roll and collide inside. Under the action of friction and centripetal force, the materials gradually agglomerate into granules.

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