Sulfur-carbon double-base chelated blended fertilizer production device and use method thereof

Abstract

The invention provides a sulfur-carbon double-base chelated bulk blending fertilizer production device and a use method thereof, and belongs to the technical field of chelated bulk blending fertilizer.The sulfur-carbon double-base chelated bulk blending fertilizer production device comprises a granulation tower arranged on the ground, a left base frame and a right base frame which are arranged on the ground are arranged on the two sides of the granulation tower respectively, and a material mixing mechanism communicated with a material inlet of the granulation tower is arranged on the left base frame; a screening machine fixedly connected to the left base frame is arranged at a feeding port above the mixing mechanism, a spiral conveying machine located on the left base frame is arranged between a screened material outlet of the screening machine and a feeding port of the jaw crusher, on the basis that original sulfur and carbon elements are kept, mixed fertilizer is added, and according to crop requirements and soil conditions, the mixed fertilizer is added into the jaw crusher. Nitrogen, phosphorus, potassium and trace elements are scientifically proportioned, and by blending the trace elements in the mixed fertilizer, the soil structure is improved, the water and fertilizer retention capacity is enhanced, the nutrient loss is reduced, and the environmental pollution is reduced, so that the compound fertilizer is suitable for various crops and soil types.

Description

Technical Field

[0001] The present invention relates to the technical field of chelated blended fertilizers, and specifically provides a sulfur-carbon dual-based chelated blended fertilizer production device and a method for using the same. Background Art

[0002] In agricultural production, the quality and performance of fertilizers play a crucial role in the yield and quality of crops. As a new type of fertilizer, sulfur-carbon dual-based chelated fertilizers integrate the advantages of sulfur, carbon, and chelation technology. Sulfur is an essential nutrient element for plants, participating in protein synthesis and enzyme activity, and can effectively improve the soil. The chelating agent combines with trace elements to form stable compounds, preventing precipitation and enhancing plant absorption.

[0003] A sulfur-carbon dual-based chelated fertilizer production device and a method for using the same are disclosed in Related Technology 1 (publication number: CN118496042B). The disclosed technical solution is to use an existing granulation tower for granulation, and then mix it directly with organic carbon that can be used in the soil without adding organic carbon to the chelating agent. The organic carbon can also adsorb the moisture of the fertilizer particles exported from the granulation tower.

[0004] In the above-disclosed technical solution, it is found that the following problems exist in the related technology: With the continuous development of agricultural technology and the damage of industrial pollution to the soil structure, fertilizers need to add trace elements other than sulfur and carbon according to the environment. For this reason, we provide a sulfur-carbon dual-based chelated blended fertilizer production device and a method for using the same.

[0005] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background art section of the present application, and thus may include prior art information that is not known to those of ordinary skill in the art. Summary of the Invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies. To solve the problems existing in the production of chelated blended fertilizers in the above prior art, the present invention provides a sulfur-carbon dual-based chelated blended fertilizer production device and a method for using the same, and adopts a structure in which blended fertilizers are mixed and then combined with a chelated fertilizer mixing structure to achieve the effect of improving the quality of chelated blended fertilizers. The specific technical solution is as follows: A sulfur-carbon double-based chelated blended fertilizer production device, including a granulation tower placed on the ground. On both sides of the granulation tower, there are a left base frame and a right base frame placed on the ground respectively. On the left base frame, there is a melting tank connected to the feed inlet of the granulation tower. At the feed inlet of the melting tank, there is a mixing mechanism fixedly connected to the left base frame. At the upper feed inlet of the mixing mechanism, there is a screening machine fixedly connected to the left base frame. At the upper feed inlet of the screening machine, there is a jaw crusher fixedly connected to the left base frame. Between the screening outlet of the screening machine and the feed inlet of the jaw crusher, there is a screw conveyor located on the left base frame; On the left base frame, there is a chelating agent addition tank fixedly connected. At the discharge outlet of the chelating agent addition tank, there is a chelating tank fixedly connected to the left base frame, and the discharge outlet of the chelating tank is connected to the inner cavity of the mixing mechanism; On the left base frame, there is a mixed fertilizer addition mechanism fixedly connected, and the discharge outlet of the mixed fertilizer addition mechanism is connected to the inner cavity of the mixing mechanism; On the right base frame, there is a drying box fixedly connected. Above the drying box, there is a feeding port connected to the discharge part of the granulation tower. Below the drying box, there is a screening mechanism fixedly connected to the right base frame. The discharge outlets of the screening mechanism are respectively connected to an extrusion granulator. At the discharge outlet of the extrusion granulator, there is a partition bin fixedly connected to the right base frame, and between the extrusion granulator and the partition bin, there is a mixer fixedly connected to the right base frame for communication.

[0007] In the above technical solution, the mixed fertilizer addition mechanism includes an addition tank fixedly connected to the left base frame. At the top of the addition tank, there is an inner shaft extending into the inner cavity. The outer wall of the inner shaft is sleeved with an outer shaft rotatably arranged on the addition tank. On the outer wall of the inner shaft extending into the inner cavity of the addition tank, there are evenly arranged branch-shaped inner stirring blades. On the outer wall of the outer shaft extending into the inner cavity of the addition tank, there are evenly arranged branch-shaped outer stirring blades. On the addition tank, there is a linkage rotation assembly for driving the inner shaft and the outer shaft to rotate simultaneously.

[0008] The linkage rotation assembly includes a first driven bevel gear sleeved on the outer wall of the inner shaft, a second driven bevel gear sleeved on the outer shaft, and at the top of the addition tank, there is a driving bevel gear rotatably arranged and meshing with both the first driven bevel gear and the second driven bevel gear simultaneously.

[0009] The mixing mechanism includes a mixing tank fixedly connected to the left base frame. Inside the inner cavity of the mixing tank, there are evenly embedded bamboo joint-shaped feeding cylinders longitudinally. Between two adjacent bamboo joint-shaped feeding cylinders, there is a material scattering seat rotatably connected to the inner wall of the mixing tank. On the inner wall of the material scattering seat, there are evenly inclined distributing plates circumferentially. On the outer wall of the mixing tank, there is a linkage speed-dividing material scattering assembly for driving each material scattering seat to rotate at different speeds simultaneously; A rotating shaft is rotatably arranged in the inner cavity of the mixing tank. The outer wall of the rotating shaft is circumferentially and evenly provided with mixing and stirring blades, and the mixing and stirring blades are located in the inner cavity of the bamboo joint type feeding cylinder at the bottom end.

[0010] The linkage speed-dividing and material-spreading assembly includes a gear ring fixedly connected to the bottom of the material-spreading seat, and the gear ring is attached to the bamboo joint type feeding cylinder. On the outer wall of the mixing tank, a low-speed rotating shaft, a medium-speed rotating shaft, and a high-speed rotating shaft are sequentially and longitudinally rotatably arranged. The low-speed rotating shaft and the medium-speed rotating shaft and the medium-speed rotating shaft and the high-speed rotating shaft are connected by universal joints. Low-speed gears, medium-speed gears, and high-speed gears meshing with the gear ring are respectively sleeved on the outer walls of the low-speed rotating shaft, the medium-speed rotating shaft, and the high-speed rotating shaft. Through grooves corresponding to the low-speed gear, the medium-speed gear, and the high-speed gear are sequentially opened on the outer wall of the mixing tank.

[0011] A driving gear is sleeved on the outer wall of the rotating shaft extending out of the mixing tank. A driven gear meshing with the driving gear is sleeved on the outer wall of the low-speed rotating shaft. A material-spreading cone is sequentially sleeved on the outer wall of the rotating shaft above each material-spreading seat. A conical base fitting the inner wall bottom of the mixing tank is sleeved on the bottom end of the rotating shaft. Discharging plates fitting the inner wall bottom of the mixing tank are circumferentially and evenly arranged on the conical base.

[0012] A heater is embedded in the interlayer of the drying box. A material inlet extending into the inner cavity is embedded at the center of the outer wall of the drying box. The drying box is rotatably arranged on the right base frame. Uniform material plates fitting the inner wall are circumferentially and rotatably arranged in the inner cavity of the drying box.

[0013] The screening mechanism includes a screening box fixedly connected to the right base frame. A first screening groove, a second screening groove, a third screening groove, and a fourth screening groove are sequentially and longitudinally inclined in the inner cavity of the screening box. Screening rollers are sequentially rotatably arranged along the slope on the first screening groove, the second screening groove, and the third screening groove. The distance between the screening rollers on the first screening groove is greater than the distance between the screening rollers on the second screening groove. The distance between the screening rollers on the second screening groove is greater than the distance between the screening rollers on the third screening groove. A blanking gear is sleeved on each screening roller, and two adjacent blanking gears are meshed with each other.

[0014] The screening machine includes a base fixedly connected to the left base frame. A screening box is arranged above the base, and the screening box is connected to the base through an elastic telescopic member. A vibration motor is arranged on the outer wall of the screening box. A screening inlet is embedded at the top of the screening box, and the screening inlet is communicated with the outlet of the jaw crusher through a flexible connecting pipe. A sieve plate is inclined and embedded in the inner cavity of the screening box. A screening material outlet extending to the end of the sieve plate is embedded in the outer wall of the screening box. A guide hopper penetrating the inner cavity of the base is embedded at the bottom of the screening box; The elastic telescopic member includes an outer cylinder rotatably arranged on the base. A docking seat is rotatably arranged at the bottom of the screening box. A movable rod extending into the inner cavity of the outer cylinder is fixedly connected to the side wall of the docking seat. An elastic member sleeved on the outside of the movable rod is arranged between the docking seat and the outer cylinder.

[0015] A method for using a production device of sulfur-carbon double-base chelated blended fertilizer includes: S1: Put the sulfur-containing blocky raw materials into the internal of the jaw crusher. At the same time, open the chelating agent addition tank and put the blended fertilizer raw materials into the addition tank. Then, the chelated fertilizer and the blended fertilizer respectively enter the two parts of the bamboo joint type feeding cylinders through the feeding channels, so that the chelated fertilizer and the blended fertilizer respectively fall on the two sets of feeding plates with different rotation speeds. At the same time, the crushed sulfur-containing materials fall into the inner cavity of the screening machine. The qualified crushed raw materials introduce the crushed sulfur-containing blocky raw materials into the uppermost material dispersing seat through the feeding channel. The screened sulfur-containing blocky raw materials are transported to the jaw crusher by a screw conveyor for crushing treatment again.

[0016] S2: The sulfur-containing blocky raw materials are introduced into the uppermost material dispersing seat. The fertilizer after being treated in the chelating tank falls on the middle material dispersing seat. The blended fertilizer falls on the bottom material dispersing seat. Through the dispersion treatment of the fertilizers in the three spaces, the three kinds of materials are evenly fallen on the rotating mixing and stirring blades. After mixing, the conical base attached to the inner wall bottom of the mixing tank drives a plurality of discharging plates in the circumferential direction to drive the blended fertilizer to the discharging holes in sequence, and then discharges to the outside through the discharging holes and enters the inside of the granulation tower after being treated by a melting tank.

[0017] S3: After being treated in the granulation tower, adjust the material inlet of the drying box to the position corresponding to the material outlet of the upper granulation tower. At the same time, add carbon powder into the inside of the drying box, and then heat-treat the inside through the heater located in the drying box sandwich. Then, adjust the material inlet to the position corresponding to the screening box inlet below, and send the fertilizer to the material inlet through the continuously rotating material leveling plate, and fall into the inside of the screening box through the material inlet.

[0018] S4: The fertilizer after drying treatment falls on the first sieve trough through the material inlet. The fertilizers with smaller specifications fall on the second sieve trough through the gap between the two sieve rollers, and then are screened again through the third sieve trough, so as to screen out the fertilizers according to four specifications. The classified fertilizers enter the four extrusion granulators respectively through their respective discharging nozzles.

[0019] S5: After being processed by an extrusion granulator, it enters a mixer. At the same time, fertilizers containing any two or three of the three nutrient elements of nitrogen, phosphorus, and potassium are put into the interior of the mixer. After being mixed by the mixer, the fertilizers are separately collected in a grid bin and finally discharged into an automatic quantitative packaging machine through the grid bin. The fertilizers are accurately weighed and packaged by an electronic weighing sensor.

[0020] Compared with the prior art, the beneficial effects of the present invention are: The sulfur-carbon double-based chelated blending fertilizer production device and its use method: First, on the basis of maintaining the original sulfur and carbon elements, mixed fertilizers are added. According to the crop requirements and soil conditions, nitrogen, phosphorus, potassium, and trace elements are scientifically proportioned. By integrating the trace elements in the mixed fertilizers, the soil structure is improved, the water and fertilizer retention capacity is enhanced, nutrient loss is reduced, and environmental pollution is lowered, so as to be applicable to a variety of crops and soil types.

[0021] Second, after the chelated fertilizer and the mixed fertilizer are respectively put into the two parts of the bamboo joint type feeding cylinder, the chelated fertilizer and the mixed fertilizer respectively fall on two groups of distributing plates with different rotation speeds. According to the adaptability of different fertilizers, the chelated fertilizer and the mixed fertilizer entering the interior of the bamboo joint type feeding cylinder are respectively dispersed in different spaces, so that the chelated fertilizer and the mixed fertilizer are dispersed and fall into the interior of the lowest sub-bamboo joint type feeding cylinder. Then, the chelated fertilizer and the mixed fertilizer are mixed by a rotating shaft driving a mixing stirring blade, thereby improving the mixing effect of the chelated fertilizer and the mixed fertilizer, and further ensuring the quality of the sulfur-carbon double-based chelated blending fertilizer.

[0022] Third, the fertilizer after drying treatment falls on the first sieve trough through a material port. The fertilizers with smaller specifications fall on the second sieve trough through the gap between the two sieve rollers, and then are screened again through the third sieve trough, so as to screen out the fertilizers according to four specifications. After classification treatment, it brings convenience to the subsequent material distribution operation.

[0023] Fourth, through the linkage rotating assembly, the inner shaft and the outer shaft rotate simultaneously, so that the three forked outer stirring blades and the three forked inner stirring blades rotate simultaneously, thereby uniformly stirring the mixed fertilizer additive. Through the two groups of internal and external synchronous stirring, the quality of the mixed fertilizer is improved, and further the final discharge quality of the sulfur-carbon double-based chelated blending fertilizer is ensured.

[0024] Fifth, during the crushing treatment of the blocky raw material containing sulfur elements, the materials screened by the screening machine are transported to the jaw crusher through a screw conveyor for crushing treatment again, reducing the loss of materials and performing cyclic crushing treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of a sulfur-carbon double-based chelated blending fertilizer production device of the present invention; Figure 2Schematic diagram of the structure of the mixed fertilizer adding mechanism of the present invention; Figure 3 Structural sectional view of the adding tank part of the present invention; Figure 4 Schematic diagram of the structure of the mixing mechanism of the present invention; Figure 5 Structural sectional view of the mixing tank part of the present invention; Figure 6 Exploded schematic diagram of the structure of the mixing mechanism of the present invention; Figure 7 Schematic diagram of the internal structure of the drying box and the screening box of the present invention; Figure 8 Structural sectional view of the drying box and the screening box of the present invention; Figure 9 Schematic diagram of the structure of the screening machine part of the present invention; Figure 10 Structural sectional view of the screening box part of the present invention; Figure 11 is Figure 8 Partial enlarged view of part A; Among them, Figures 1 to 11The corresponding relationship between the reference numerals in the drawings and the component names is as follows: 1. Granulation tower; 2. Left base frame; 3. Right base frame; 4. Mixing mechanism; 5. Screening machine; 6. Jaw crusher; 7. Screw feeder; 8. Compound fertilizer adding mechanism; 9. Screening mechanism; 91. Screening box; 10. Chelating agent adding tank; 11. Chelating tank; 12. Compartment; 13. Drying box; 14. Extrusion granulator; 15. Linkage rotating assembly; 16. Heater; 17. First sieve trough; 18. Second sieve trough; 19. Third sieve trough; 20. Fourth sieve trough; 21. Sieve roller; 22. Feed gear; 23. Discharge nozzle; 24. Central roller; 25. Material leveling plate; 26. Enclosure; 27. Feed port; 28. Mixer; 30. Melting tank; 40. Linkage variable-speed spreading assembly; 41. Mixing tank; 42. Bamboo joint type feeding cylinder; 43. Bulk material seat; 44. Dividing plate; 45. Ball; 46. Mixing and stirring blade; 47. Rotating shaft; 48. Spreading cone; 49. Connecting rib; 401. Ring gear; 402. Low-speed rotating shaft; 403. Medium-speed rotating shaft; 404. High-speed rotating shaft; 405. Universal joint; 406. Low-speed gear; 407. Medium-speed gear; 408. High-speed gear; 409. Through groove; 410. Feed channel; 411. Outer cover; 412. Driving gear; 413. Driven gear; 414. Conical base; 415. Discharge plate; 416. Wear-resistant chassis; 417. Discharge hole; 51. Screening box; 52. Base; 53. Guide hopper; 54. Elastic telescopic member; 541. Outer cylinder; 542. Docking seat; 543. Movable rod; 544. Elastic member; 55. Screening material port; 56. Screening inlet; 57. Sieve plate; 58. Vibration motor; 81. Adding tank; 82. Inner shaft; 83. Outer shaft; 84. First driven bevel gear; 85. Second driven bevel gear; 86. Driving bevel gear; 87. Fixed frame; 88. Branch type outer stirring blade; 89. Branch type inner stirring blade. Detailed implementation manners

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] The following combines specific implementation cases and attached Figure 1 - attached Figure 11 to further illustrate the present invention, but the present invention is not limited to these embodiments.

[0028] A sulfur-carbon double-base chelated blended fertilizer production device includes a granulation tower 1 placed on the ground. On both sides of the granulation tower 1, there are a left base frame 2 and a right base frame 3 placed on the ground respectively. The left base frame 2 and the right base frame 3 are respectively fixed on both sides of the granulation tower 1. A melting tank 30 connected to the feed inlet of the granulation tower 1 is arranged on the left base frame 2. At the feed inlet of the melting tank 30, there is a mixing mechanism 4 fixedly connected to the left base frame 2. The melting tank 30 is a heat exchange container that heats the normal-temperature solid substances contained in it to a certain temperature and then melts them. The discharge port at the lower part of the mixing mechanism 4 is connected to the feed inlet of a bucket elevator, and the discharge port of the bucket elevator is connected to the feed inlet of the granulation tower 1. The mixed fertilizer is transported into the interior of the granulation tower 1 through the bucket elevator.

[0029] A screening machine 5 fixedly connected to the left base frame 2 is arranged at the feed inlet above the mixing mechanism 4, and a jaw crusher 6 fixedly connected to the left base frame 2 is arranged at the feed inlet above the screening machine 5. For the blocky raw materials containing sulfur elements, the jaw crusher 6 is selected. Its working principle is that the moving jaw plate makes periodic reciprocating swings relative to the fixed jaw plate. When the moving jaw plate approaches the fixed jaw plate, the materials are crushed under the actions of extrusion, splitting, and bending between the two jaw plates. When the moving jaw plate leaves the fixed jaw plate, the materials that have been crushed to a size smaller than the discharge port are discharged from the discharge port by gravity. The blocky raw materials can be crushed to a particle size of about 5 - 10 mm for subsequent processing. The jaw crusher 6 is fixed at the uppermost part of the left base frame 2, the screening machine 5 is fixed on the left base frame 2 and is located between the mixing mechanism 4 and the screening machine 5. The material falling port of the jaw crusher 6 is hermetically connected to the feed inlet of the screening machine 5, and the material falling port of the screening machine 5 is hermetically connected to the feed inlet of the mixing mechanism 4.

[0030] A screw conveyor 7 placed on the left base frame 2 is arranged between the screen material outlet of the screening machine 5 and the feed inlet of the jaw crusher 6. The feed inlet of the screw conveyor 7 is hermetically connected to the outlet of the screen material of the screening machine 5. At the top discharge port of the screw conveyor 7, there is a channel fixedly connected obliquely towards the feed inlet of the jaw crusher 6, so that the screw conveyor 7 transports the materials screened out by the screening machine 5 to the jaw crusher 6 through the screw conveyor 7 for re-crushing treatment.

[0031] The screening machine 5 adopts a vibrating screening machine. Using the exciting force generated by a vibrating motor 58, the materials make a tossing movement on the screen mesh. The materials smaller than the screen hole size pass through the screen mesh and become the screen undersize, while the materials larger than the screen hole size remain on the screen mesh and are discharged as the screen oversize. It can effectively screen out the raw materials that meet the particle size requirements and ensure that the particle size of the raw materials entering the subsequent processes is uniform. Generally, the screen aperture is controlled at 3 - 5 mm.

[0032] The chelating agent adding tank 10 is fixedly connected to the left base frame 2. A chelating tank 11 fixedly connected to the left base frame 2 is arranged at the discharge port of the chelating agent adding tank 10, and the discharge port of the chelating tank 11 is communicated with the inner cavity of the mixing mechanism 4. The discharge port of the chelating agent adding tank 10 is hermetically communicated with the feed port of the chelating tank 11. The chelating tank 11 is fixed on the left base frame 2 and is located below the chelating agent adding tank 10. The discharge port of the chelating tank 11 is communicated with the inner cavity of the mixing mechanism 4 through an inclined pipeline. After the chelating agent is added into the chelating tank 11, it is processed by the heater 16 and the stirring member in the chelating tank 11 and then added into the mixing mechanism 4.

[0033] A compound fertilizer adding mechanism 8 is fixedly connected to the left base frame 2, and the discharge port of the compound fertilizer adding mechanism 8 is communicated with the inner cavity of the mixing mechanism 4. The discharge port of the compound fertilizer adding mechanism 8 is communicated with the inner cavity of the mixing mechanism 4 through an inclined pipeline. The raw materials discharged from the chelating tank 11 and the compound fertilizer are stirred and mixed by the mixing mechanism 4.

[0034] A drying box 13 is fixedly connected to the right base frame 3. A blanking port communicated with the discharging part of the granulation tower 1 is arranged above the drying box 13, and a screening mechanism 9 fixedly connected to the right base frame 3 is arranged below the drying box 13. The discharge ports of the screening mechanism 9 are respectively connected with an extrusion granulator 14. A partition bin 12 fixedly connected to the right base frame 3 is arranged below the discharge port of the extrusion granulator 14. The fertilizer processed by the granulation tower 1 is dried by the drying box 13, and then the fertilizer is discharged into the screening mechanism 9 by the drying box 13. After classifying fertilizers of different shapes, they respectively enter the extrusion granulator 14, and the dried fertilizer is granulated for the second time to make its shape and particle size more in line with the use requirements. Subsequently, after being processed by the extrusion granulator 14, it is admixed with chemical fertilizers containing any two or three of the three nutrient elements of nitrogen, phosphorus and potassium. Finally, the admixed fertilizers respectively enter the partition bin 12 for separate collection.

[0035] Four mixers 28 are respectively and sequentially fixed horizontally on the right base frame 3. The feed ports of the mixers 28 are hermetically communicated with the discharge ports of each extrusion granulator 14, and the discharge ports of the mixers 28 are hermetically communicated with the feed ports of the four collection bins of the partition bin 12 below. A blending feed port is installed on the surface of the mixer 28. According to the requirements of the fertilizer, chemical fertilizers containing any two or three of the three nutrient elements of nitrogen, phosphorus and potassium are put into the mixer 28 through the blending feed port. The mixer 28 admixes the chelated fertilizer and other fertilizers through the stirring member inside.

[0036] Among them, the mixed fertilizer adding mechanism 8 includes an adding tank 81 fixedly connected to the left base frame 2. A inner shaft 82 extending into the inner cavity is rotatably arranged at the top of the adding tank 81. An outer shaft 83 rotatably arranged on the adding tank 81 is sleeved on the outer wall of the inner shaft 82. An L-shaped fixing frame 87 is fixedly installed at the top of the adding tank 81. A bearing is embedded and installed on the top inner wall of the fixing frame 87. The upper end of the inner shaft 82 is embedded and installed inside the bearing. The lower end of the inner shaft 82 penetrates through the top of the adding tank 81 and extends into the inner cavity. The outer shaft 83 is movably sleeved outside the inner shaft 82 through a through hole opened in the center, so that the outer shaft 83 fits and rotates on the outer wall of the inner shaft 82. The lower ends of the outer shaft 83 are respectively provided with branch pipes that penetrate through the top of the adding tank 81 and extend into the inner cavity. The outer part of the outer shaft 83 rotates on the through hole at the top of the adding tank 81 through a sleeved bearing.

[0037] On the fixing frame 87, a bearing seat is fixed through a vertical support column. A bearing is embedded and installed inside the bearing seat. The outer shaft 83 is embedded and installed inside the bearing. The stability of the inner shaft 82 and the outer shaft 83 is improved through the support column. Branched inner stirring blades 89 are evenly arranged on the outer wall of the inner shaft 82 extending into the inner cavity of the adding tank 81. Branched outer stirring blades 88 are evenly arranged on the outer wall of the outer shaft 83 extending into the inner cavity of the adding tank 81. Branched inner stirring blades 89 are sequentially arranged circumferentially on the outer wall of the inner shaft 82 located in the inner cavity of the adding tank 81. Branched outer stirring blades 88 are sequentially arranged circumferentially on the outer wall of the outer shaft 83 located in the inner cavity of the adding tank 81. Three branched outer stirring blades 88 are circumferentially arrayed on the outer periphery of the branched inner stirring blades 89. A linkage rotation assembly 15 for driving the inner shaft 82 and the outer shaft 83 to rotate simultaneously is arranged on the adding tank 81.

[0038] With the above structure, through the linkage rotation assembly 15, the inner shaft 82 and the outer shaft 83 rotate simultaneously, so that the three branched outer stirring blades 88 and the three branched inner stirring blades 89 rotate simultaneously, thereby uniformly stirring the mixed fertilizer additive. Through two groups of internal and external synchronous stirring, the quality of the mixed fertilizer is improved, and thus the final discharging quality of the sulfur-carbon double-base chelated blended fertilizer is ensured.

[0039] The linkage rotation assembly 15 includes a first driven bevel gear 84 sleeved on the outer wall of the inner shaft 82. A second driven bevel gear 85 is sleeved on the outer shaft 83. And a driving bevel gear 86 that meshes with both the first driven bevel gear 84 and the second driven bevel gear 85 simultaneously is rotatably arranged at the top of the adding tank 81. The first driven bevel gear 84 is fixedly sleeved on the outer wall of the inner shaft 82 outside the adding tank 81 through a mounting hole opened in the center. The second driven bevel gear 85 is fixedly sleeved on the outer wall of the outer shaft 83 outside the adding tank 81 through a mounting hole opened in the center. The motor is fixed at the top of the adding tank 81 through a machine cover. The driving bevel gear 86 is fixedly sleeved on the outer wall of the motor output shaft through a mounting hole opened in the center. The motor is electrically connected to an external power supply through a wire.

[0040] It should be noted that the mixing mechanism includes a mixing tank 41 fixedly connected to the left base frame 2. Inside the mixing tank 41, bamboo joint type feeding cylinders 42 are longitudinally and evenly embedded. Between two adjacent bamboo joint type feeding cylinders 42, there is a material dispersing seat 43 rotatably connected to the inner wall of the mixing tank 41. On the inner wall of the material dispersing seat 43, material distributing plates 44 are circumferentially and evenly inclined. On the outer wall of the mixing tank 41, there is a linkage speed-dividing material spreading assembly 40 that drives each material dispersing seat 43 to rotate at different speeds simultaneously.

[0041] Three material dispersing seats 43 and three bamboo joint type feeding cylinders 42 are alternately located in the inner cavity of the mixing tank 41 in sequence. The material dispersing seat 43 rotates while fitting on the surface of the bamboo joint type feeding cylinder 42, ensuring there is no gap between two adjacent bamboo joint type feeding cylinders 42. The bamboo joint type feeding cylinders 42 are fixed to the inner wall of the mixing tank 41 through circumferentially arranged connecting ribs 49 in sequence. On the outer circumferential wall of each material dispersing seat 43, activity grooves are continuously opened in sequence. On the inner wall of the mixing tank 41, a sliding groove is circumferentially opened. In each activity cavity formed by the activity groove and the sliding groove, a ball 45 is movably embedded. The circumferential balls 45 ensure the stability of the rotation process of the material dispersing seat 43.

[0042] A rotating shaft 47 is rotatably arranged in the inner cavity of the mixing tank 41. On the outer circumferential wall of the rotating shaft 47, mixing stirring blades 46 are circumferentially and evenly arranged, and the mixing stirring blades 46 are located in the inner cavity of the bottom bamboo joint type feeding cylinder 42. At the central position of the bottom of the mixing tank 41, a motor is fixed through a machine cover. The output shaft of the motor penetrates through the top of the mixing tank 41 and is fixedly connected to one end of the rotating shaft 47. The motor is electrically connected to an external power supply through a wire. Through the linkage speed-dividing material spreading assembly 40, the three material dispersing seats 43 rotate simultaneously at different speeds, so that the material distributing plates 44 circumferentially arrayed on the inner wall of the material dispersing seat 43 rotate at different speeds. A guiding channel is fixedly and embeddedly installed on the outer wall of the mixing tank 41. The two guiding channels respectively connect the compound fertilizer adding mechanism 8 and the chelating tank 11 with the two adjacent upper bamboo joint type feeding cylinders 42.

[0043] With the above structure, after the chelated fertilizer and the compound fertilizer are respectively put into two parts of the bamboo joint type feeding cylinders 42, the chelated fertilizer and the compound fertilizer respectively fall on two groups of material distributing plates 44 with different rotation speeds. According to the adaptability of different fertilizers, the chelated fertilizer and the compound fertilizer entering the inner part of the bamboo joint type feeding cylinder 42 are respectively dispersed in different spaces, so that the chelated fertilizer and the compound fertilizer are dispersed and fall into the inner part of the bottom bamboo joint type feeding cylinder 42. Then, the rotating shaft 47 drives the mixing stirring blades 46 to mix the chelated fertilizer and the compound fertilizer, thereby improving the mixing effect of the chelated fertilizer and the compound fertilizer, and further ensuring the quality of the sulfur-carbon double-base chelated blended fertilizer.

[0044] In addition, the linkage variable-speed material spreading assembly 40 includes a gear ring 401 fixedly connected to the bottom of the material spreading seat 43, and the gear ring 401 is attached to the bamboo joint type feeding cylinder 42. The gear ring 401 is located between the material spreading seat 43 and the bamboo joint type feeding cylinder 42, so that the material spreading seat 43 rotates as the gear ring 401 is attached to the bamboo joint type feeding cylinder 42. On the outer wall of the mixing tank 41, a low-speed rotating shaft 402, a medium-speed rotating shaft 403, and a high-speed rotating shaft 404 are successively and longitudinally rotatably arranged. A universal joint 405 is connected between the low-speed rotating shaft 402 and the medium-speed rotating shaft 403 and between the medium-speed rotating shaft 403 and the high-speed rotating shaft 404. Low-speed gears 406, medium-speed gears 407, and high-speed gears 408 meshing with the gear ring 401 are respectively sleeved on the outer walls of the low-speed rotating shaft 402, the medium-speed rotating shaft 403, and the high-speed rotating shaft 404. Through grooves 409 corresponding to the low-speed gears 406, the medium-speed gears 407, and the high-speed gears 408 are successively formed on the outer wall of the mixing tank 41. The low-speed gears 406, the medium-speed gears 407, and the high-speed gears 408 respectively pass through the through grooves 409 at various positions and mesh with the three corresponding gear rings 401. An outer cover 411 covering the outside of the low-speed gears 406, the medium-speed gears 407, and the high-speed gears 408 is fixedly connected to the outer wall of the mixing tank 41. The top end of the low-speed rotating shaft 402 is rotatably connected to the top of the inner wall of the outer cover 411 through a bearing. The bottom end of the high-speed rotating shaft 404 is rotatably connected to the bottom of the inner wall of the outer cover 411 through a bearing.

[0045] A driving gear 412 is sleeved on the outer wall of the rotating shaft 47 extending out of the mixing tank 41, and a driven gear 413 meshing with the driving gear 412 is sleeved on the outer wall of the low-speed rotating shaft 402. A driving motor of the rotating shaft 47 drives the rotating shaft 47, the low-speed gears 406, the medium-speed gears 407, and the high-speed gears 408 to rotate simultaneously. Spreading cones 48 located above each material spreading seat 43 are successively sleeved on the outer wall of the rotating shaft 47.

[0046] With the above structure, the spreading cone 48 is of a conical structure. Before falling on the material spreading seat 43, the material is dispersed circumferentially by centrifugal force and falls on a plurality of distributing plates 44, improving the dispersion effect of the fertilizer entering the inner cavity of the mixing tank 41, thereby improving the fertilizer mixing effect.

[0047] A conical base 414 fitting to the bottom inner wall of the mixing tank 41 is sleeved on the bottom end of the rotating shaft 47. Discharging plates 415 fitting to the bottom inner wall of the mixing tank 41 are circumferentially and evenly arranged on the conical base 414, so that the discharging plates 415 rotate as the conical base 414 fits to the bottom inner wall of the mixing tank 41. A wear-resistant chassis 416 is fixedly installed at the bottom of the conical base 414. Discharging holes 417 are circumferentially and evenly formed in the bottom inner wall of the mixing tank 41 and are arrayed centered on the motor at the bottom.

[0048] The feeding channel 410 for the screened bulk raw material of sulfur element fixed at the eccentric position on the top of the mixing tank 41 guides the crushed bulk raw material of sulfur element into the uppermost material spreading seat 43 through the feeding channel 410 after passing through the screening machine 5. The fertilizer after being treated in the chelating tank 11 falls on the middle material spreading seat 43, and the mixed fertilizer falls on the bottom material spreading seat 43. Through the dispersion treatment of the fertilizers in the three spaces, the three kinds of materials evenly fall on the rotating mixing and stirring blades 46. After mixing, the conical base 414 attached to the inner wall bottom of the mixing tank 41 drives a plurality of discharge plates 415 in the circumferential direction to drive the mixed fertilizer to the discharge holes 417 in sequence, and then discharges it to the outside through the discharge holes 417 and enters the inside of the granulation tower 1 for the next treatment.

[0049] A heater 16 is embedded in the interlayer of the drying oven 13. The heater 16 is connected to an external power supply through a wire. After the power is connected, the heater 16 heats the inside of the drying oven 13. A material inlet 27 extending to the inner cavity is embedded at the center of the outer wall of the drying oven 13. The drying oven 13 is rotatably arranged on the right base frame 3. Through the motor installed on the right base frame 3, the output shaft of the motor drives the drying oven 13 to rotate on the right base frame 3. When feeding materials, the material inlet 27 is adjusted to a position corresponding to the upper material dropping port, so that the fertilizer enters the inside of the drying oven 13 through the material dropping port and the material inlet 27. When feeding materials to the screening mechanism 9, the material inlet 27 is adjusted downward.

[0050] A material leveling plate 25 fitting to the inner wall is rotatably arranged circumferentially and evenly in the inner cavity of the drying oven 13. Through the motor on the right base frame 3, the output shaft of the motor drives the central roller 24 to rotate, so that the central roller 24 drives six material leveling plates 25 in the circumferential direction to slide on the inner wall of the drying oven 13. When discharging materials, the fertilizer is scraped off to the material inlet 27 in sequence. When drying, the internal fertilizer is evenly heated through the material leveling plate 25.

[0051] In addition, the screening mechanism 9 includes a screening box 91 fixed on the right base frame 3. The inner cavity of the screening box 91 is longitudinally and obliquely provided with a first screening groove 17, a second screening groove 18, a third screening groove 19 and a fourth screening groove 20 in sequence. Screening rollers 21 are rotatably arranged along the slopes on the first screening groove 17, the second screening groove 18 and the third screening groove 19. And the spacing between the screening rollers 21 on the first screening groove 17 is greater than the spacing between the screening rollers 21 on the second screening groove 18, and the spacing between the screening rollers 21 on the second screening groove 18 is greater than the spacing between the screening rollers 21 on the third screening groove 19. A blanking gear 22 is sleeved on each screening roller 21, and two adjacent blanking gears 22 are meshed with each other.

[0052] The motors are fixed to the outer walls of the first sieve trough 17, the second sieve trough 18 and the third sieve trough 19 through machine covers, and the output shaft of the motor is fixedly connected to one end of the shaft body where one of the sieve rollers 21 is located. Enclosures 26 are fixedly installed on the first sieve trough 17, the second sieve trough 18, the third sieve trough 19 and the fourth sieve trough 20. Discharge nozzles 23 are fixedly installed on the surfaces of the enclosures 26 on the side of the material falling, and each discharge nozzle 23 communicates with the feed inlets of four extrusion granulators 14.

[0053] With the above structure, the fertilizer after drying treatment falls on the first sieve trough 17 through the material opening 27. The fertilizer with smaller specifications falls on the second sieve trough 18 through the gap between the two sieve rollers 21, and then is screened again through the third sieve trough 19, so as to screen out the fertilizer according to four specifications. After classification treatment, it brings convenience to the subsequent material distribution operation.

[0054] Furthermore, the screening machine 5 includes a base 52 fixedly connected to the left base frame 2. Above the base 52, a screening box 51 is provided, and the screening box 51 is connected to the base 52 through an elastic telescopic member 54. A vibration motor 58 is provided on the outer wall of the screening box 51, and the vibration motor 58 is connected to an external power supply through a wire. A screening inlet 56 is embedded at the top of the screening box 51, and the screening inlet 56 is connected to the outlet of the jaw crusher 6 through a flexible connecting pipe. A sieve plate 57 is obliquely embedded in the inner cavity of the screening box 51. A sieve material outlet 55 extending to the end of the sieve plate 57 is embedded in the outer wall of the screening box 51. A material guiding hopper 53 penetrating the inner cavity of the base 52 is embedded at the bottom of the screening box 51. After the material guiding hopper 53 penetrates the base 52, it is connected to the feed channel 410; The elastic telescopic member 54 includes an outer cylinder 541 rotatably provided on the base 52. A docking seat 542 is rotatably provided at the bottom of the screening box 51. A movable rod 543 extending into the inner cavity of the outer cylinder 541 is fixedly connected to the side wall of the docking seat 542. An elastic member 544 sleeved on the outside of the movable rod 543 is provided between the docking seat 542 and the outer cylinder 541. The elastic member 544 can be a compression spring, and the movable rod 543 and the outer cylinder 541 form a telescopic rod.

[0055] A method for using a production device for sulfur-carbon double-base chelated blended fertilizer, as Figures 1 to 11 shown: S1: Put the massive raw materials containing sulfur elements into the internal of the jaw crusher 6. At the same time, open the chelating agent adding tank 10, and put the mixed fertilizer raw materials into the internal of the adding tank 81. Then, the chelated fertilizer and the mixed fertilizer respectively enter the internal of the two-section bamboo joint type feeding cylinder 42 through the feeding channels, so that the chelated fertilizer and the mixed fertilizer respectively fall on the two-component feeding plates 44 with different rotation speeds. At the same time, the crushed sulfur-containing materials after crushing fall into the inner cavity of the screening machine 5. The qualified crushed raw materials introduce the crushed massive sulfur-containing materials onto the uppermost material spreading seat 43 through the feeding channel 410. The screened massive sulfur-containing materials are conveyed to the jaw crusher 6 by the screw conveyor 7 for crushing treatment again.

[0056] S2: The massive sulfur-containing materials are introduced onto the uppermost material spreading seat 43. The fertilizer processed by the chelating tank 11 falls on the middle material spreading seat 43. The mixed fertilizer falls on the bottom material spreading seat 43. Through the dispersion treatment of the fertilizers in the three spaces, the three materials are evenly fallen on the rotating mixing and stirring blades 46. After mixing, the conical base 414 attached to the inner wall bottom of the mixing tank 41 drives a plurality of discharging plates 415 in the circumferential direction to drive the mixed fertilizer to the discharging holes 417 in sequence. Then, it is discharged to the outside through the discharging holes 417 and enters the internal of the granulation tower 1 after being processed by the melting tank 30.

[0057] S3: After being processed by the granulation tower 1, adjust the material outlet 27 of the drying oven 13 to the position corresponding to the material falling outlet of the upper granulation tower 1. At the same time, add carbon powder into the internal of the drying oven 13, and then heat-treat the internal through the heater 16 located in the sandwich layer of the drying oven 13. Then, adjust the material outlet 27 to the position corresponding to the inlet of the screening box 91 below, and send the fertilizer to the material outlet 27 through the continuously rotating material leveling plate 25, and fall into the internal of the screening box 91 through the material outlet 27.

[0058] S4: The fertilizer after drying treatment falls on the first screening trough 17 through the material outlet 27. The fertilizers with smaller specifications fall on the second screening trough 18 through the gap between the two screening rollers 21, and then are screened again through the third screening trough 19, so as to screen out the fertilizers according to four specifications. The classified fertilizers respectively enter the internal of the four extrusion granulators 14 through their respective discharging nozzles 23.

[0059] S5: After being processed by the extrusion granulator 14, it enters the mixer 28. At the same time, put the chemical fertilizers containing any two or three of the three nutrient elements of nitrogen, phosphorus and potassium into the internal of the mixer 28. After being blended by each mixer 28, the fertilizers are respectively collected into the grid bins 12, and finally are discharged into the automatic quantitative packaging machine through the grid bins 12, and the fertilizers are accurately weighed and packaged by the electronic weighing sensor.

[0060] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0061] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of such features.

[0062] In the present invention, unless otherwise clearly specified and defined, the terms "mount", "set", "connect", "fix", "swivel connection", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sulfur-carbon double-base chelated blended fertilizer production device, comprising a granulation tower (1) placed on the ground, wherein a left base frame (2) and a right base frame (3) placed on the ground are respectively arranged on both sides of the granulation tower (1), characterized in that: The left base frame (2) is provided with a melting tank (30) connected to the feed port of the granulation tower (1); the feed port of the melting tank (30) is connected to a mixing mechanism (4) fixedly connected to the left base frame (2); a screening machine (5) fixedly connected to the left base frame (2) is provided at the feed port above the mixing mechanism (4); a jaw crusher (6) fixedly connected to the left base frame (2) is provided at the feed port above the screening machine (5); and a screw conveyor (7) located on the left base frame (2) is provided between the screening outlet of the screening machine (5) and the feed port of the jaw crusher (6); A chelating agent adding tank (10) is fixedly connected to the left base frame (2); a chelating tank (11) fixedly connected to the left base frame (2) is arranged at the discharge port of the chelating agent adding tank (10); and the discharge port of the chelating tank (11) is communicated with the inner cavity of the mixing mechanism (4); A mixed fertilizer adding mechanism (8) is fixedly connected to the left base frame (2), and a material outlet of the mixed fertilizer adding mechanism (8) is in communication with the inner cavity of the mixing mechanism (4); A drying box (13) is fixedly connected to the right base frame (3); a discharge port connected to the discharge of the granulation tower (1) is arranged above the drying box (13); a screening mechanism (9) fixed to the right base frame (3) is arranged below the drying box (13); the discharge ports of the screening mechanism (9) are respectively connected to extrusion granulators (14); a compartment bin (12) fixed to the right base frame (3) is arranged at the discharge port of the extrusion granulator (14); and the extrusion granulator (14) is connected to the compartment bin (12) via a mixer (28) fixed to the right base frame (3).

2. A sulfur-carbon dibase chelate blended fertilizer production device according to claim 1, characterized in that: The mixed fertilizer adding mechanism (8) comprises an adding tank (81) fixedly connected to the left base frame (2); an inner shaft (82) extending to the inner cavity is rotatably provided at the top of the adding tank (81); an outer shaft (83) rotatably provided on the outer wall of the inner shaft (82) is sleeved with a branch-like inner stirring blade (89) evenly provided on the outer wall of the inner cavity of the adding tank (81); and branch-like outer stirring blades (88) are evenly provided on the outer wall of the outer shaft (83) extending to the inner cavity of the adding tank (81); and a linkage rotating assembly (15) is provided on the adding tank (81) for driving the inner shaft (82) and the outer shaft (83) to rotate simultaneously.

3. A sulfur-carbon dibase chelate blended fertilizer production device according to claim 2, characterized in that: The linked rotating assembly (15) comprises a first driven bevel gear (84) sleeved on the outer wall of the inner shaft (82), a second driven bevel gear (85) sleeved on the outer shaft (83), and a driving bevel gear (86) meshing with both the first driven bevel gear (84) and the second driven bevel gear (85) is rotatably provided on the top of the adding tank (81).

4. The sulfur-carbon dibase chelate blended fertilizer production device according to claim 1, characterized in that: The mixing mechanism (4) comprises a mixing tank (41) fixedly connected to the left base frame (2), the inner cavity of the mixing tank (41) is uniformly embedded with bamboo-jointed feeding cylinders (42) in the longitudinal direction, a bulk material seat (43) rotatably connected to the inner wall of the mixing tank (41) is arranged between two adjacent bamboo-jointed feeding cylinders (42), a material distributor plate (44) is uniformly inclined in the circumferential direction on the inner wall of the bulk material seat (43), and a linkage speed-differentiated material spreading assembly (40) is arranged on the outer wall of the mixing tank (41) for driving each bulk material seat (43) to rotate at different speeds simultaneously; The inner cavity of the mixing tank (41) is rotatably provided with a rotating shaft (47), and the outer wall of the rotating shaft (47) is evenly provided with mixing and stirring blades (46) in the circumferential direction, and the mixing and stirring blades (46) are located in the inner cavity of the bamboo-shaped feeding cylinder (42) at the bottom.

5. A sulfur-carbon dibase chelated blended fertilizer production device according to claim 4, characterized in that: The linked speed-differentiated material spreading assembly (40) comprises a gear ring (401) fixedly connected to the bottom of the bulk material seat (43), and the gear ring (401) is fitted on the bamboo-jointed feeding barrel (42). A low-speed rotating shaft (402), a medium-speed rotating shaft (403) and a high-speed rotating shaft (404) are sequentially arranged on the outer wall of the mixing tank (41) for longitudinal rotation. There is a longitudinal connection between the low-speed rotating shaft (402) and the medium-speed rotating shaft (403) and between the medium-speed rotating shaft (403) and the high-speed rotating shaft (404). 04) are connected by a universal joint (405), the outer walls of the low-speed rotating shaft (402), the medium-speed rotating shaft (403) and the high-speed rotating shaft (404) are respectively sleeved with a low-speed gear (406), a medium-speed gear (407) and a high-speed gear (408) meshing with the gear ring (401), and the outer wall of the mixing tank (41) is sequentially provided with through grooves (409) corresponding to the low-speed gear (406), the medium-speed gear (407) and the high-speed gear (408).

6. The sulfur-carbon double base chelate blended fertilizer production device according to claim 5, characterized in that: A driving gear (412) is sleeved on the outer wall of the rotating shaft (47) extending outside the mixing tank (41), a driven gear (413) meshing with the driving gear (412) is sleeved on the outer wall of the low-speed rotating shaft (402), and a material spreading cone (48) located above each bulk material seat (43) is sleeved on the outer wall of the rotating shaft (47) in sequence. A conical base (414) that fits the bottom of the inner wall of the mixing tank (41) is sleeved on the bottom end of the rotating shaft (47), and discharge plates (415) that fit the bottom of the inner wall of the mixing tank (41) are evenly arranged circumferentially on the conical base (414).

7. The sulfur-carbon dibase chelate blended fertilizer production device according to claim 1, characterized in that: A heater (16) is embedded in the interlayer of the drying box (13); a material port (27) extending to the inner cavity is embedded in the center of the outer wall of the drying box (13); the drying box (13) is rotatably mounted on the right base frame (3); and a material leveling plate (25) is evenly rotated in the circumferential direction of the inner cavity of the drying box (13) and is attached to the inner wall.

8. The sulfur-carbon dibase chelate blended fertilizer production device according to claim 1, characterized in that: The screening mechanism (9) comprises a screening box (91) fixedly connected to the right base frame (3); the inner cavity of the screening box (91) is provided with a first screening slot (17), a second screening slot (18), a third screening slot (19) and a fourth screening slot (20) in a longitudinally inclined manner in sequence; screening rollers (21) are provided on the first screening slot (17), the second screening slot (18) and the third screening slot (19) in sequence and rotate along the slope; the spacing of the screening rollers (21) on the first screening slot (17) is greater than the spacing of the screening rollers (21) on the second screening slot (18); the spacing of the screening rollers (21) on the second screening slot (18) is greater than the spacing of the screening rollers (21) on the third screening slot (19); each of the screening rollers (21) is sleeved with a blanking gear (22), and two adjacent blanking gears (22) are meshed with each other.

9. The sulfur-carbon dibase chelate blended fertilizer production device according to claim 1, characterized in that: The screening machine (5) comprises a base (52) fixedly connected to the left base frame (2); a screening box (51) is arranged above the base (52), and the screening box (51) is connected to the base (52) via an elastic telescopic member (54); a vibration motor (58) is arranged on the outer wall of the screening box (51); a screening inlet (56) is embedded in the top of the screening box (51), and the screening inlet (56) is connected to the outlet of the jaw crusher (6) via a flexible connecting pipe; a screening plate (57) is embedded in the inner cavity of the screening box (51) at an angle; a screening material opening (55) extending to the end of the screening plate (57) is embedded in the outer wall of the screening box (51); and a material guide hopper (53) penetrating the inner cavity of the base (52) is embedded in the bottom of the screening box (51); The elastic telescopic member (54) comprises an outer cylinder (541) rotatably arranged on the base (52); a docking seat (542) is rotatably arranged at the bottom of the screening box (51); a movable rod (543) extending into the inner cavity of the outer cylinder (541) is fixedly connected to the side wall of the docking seat (542); and an elastic member (544) sleeved on the outside of the movable rod (543) is arranged between the docking seat (542) and the outer cylinder (541).

10. The method for using the sulfur-carbon dibase chelate blended fertilizer production device according to any one of claims 1 to 9, characterized in that: S1: Put the block raw material containing sulfur element into the jaw crusher (6), open the chelating agent adding tank (10) at the same time, and put the mixed fertilizer raw material into the adding tank (81), then the chelated fertilizer and the mixed fertilizer enter the two parts of the bamboo-shaped feeding cylinder (42) through the material guide channel, so that the chelated fertilizer and the mixed fertilizer fall on two groups of feeding plates (44) with different rotation speeds, and at the same time, the crushed sulfur element-containing crushed material falls into the inner cavity of the screening machine (5), and the qualified crushed raw material is introduced into the crushed sulfur element block raw material through the feeding channel (410) to the uppermost bulk material seat (43), and the screened sulfur element block raw material is transported to the jaw crusher (6) through the screw feeder (7) and crushed again; S2: The lump raw material of sulfur element is introduced to the uppermost bulk material seat (43), the fertilizer processed by the chelating tank (11) falls on the middle bulk material seat (43), and the mixed fertilizer falls on the bottom bulk material seat (43). The fertilizers in the three spaces are dispersed and processed so that the three materials fall evenly on the rotating mixing and stirring blades (46). After mixing, the mixed fertilizer is driven by the conical base (414) attached to the bottom of the inner wall of the mixing tank (41) to drive the multiple circumferential discharge plates (415) to drive the mixed fertilizer to the discharge hole (417) in sequence, and then discharged from the discharge hole (417) to the outside and enter the interior of the granulation tower (1) after being processed by the melting tank (30); S3: After being processed by the granulation tower (1), the feed port (27) of the drying box (13) is adjusted to a position corresponding to the feed port of the granulation tower (1) above, and carbon powder is added to the interior of the drying box (13). The interior is then heated by a heater (16) located in the interlayer of the drying box (13). The feed port (27) is then adjusted to a position corresponding to the inlet of the screening box (91) below, and the fertilizer is sent to the feed port (27) by a continuously rotating material leveling plate (25), and falls into the screening box (91) through the feed port (27); S4: The fertilizer after drying passes through the material port (27) and falls onto the first sieve slot (17); the fertilizer with smaller specifications passes through the gap between the two sieve rollers (21) and falls onto the second sieve slot (18); and then passes through the third sieve slot (19) for further screening, thereby screening the fertilizer according to four specifications. The classified fertilizers enter the four extrusion granulators (14) through their respective discharge ports (23); S5: After being processed by the extrusion granulator (14), the fertilizer enters the mixer (28). At the same time, chemical fertilizers containing any two or three of the three nutrient elements of nitrogen, phosphorus and potassium are put into the mixer (28). After being mixed by the mixer (28), the fertilizers are respectively entered into the compartments (12) for collection. Finally, the fertilizers are discharged into the automatic quantitative packaging machine through the compartments (12). The fertilizers are accurately weighed and packaged by an electronic weighing sensor.

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