A sulfur-carbon double-base chelated blended fertilizer production device and its use method

Abstract

The present invention provides a sulfur-carbon double-base chelated blended fertilizer production device and a method of using the same, belonging to the technical field of chelated blended fertilizer, comprising a granulation tower placed on the ground, with a left base frame and a right base frame placed on the ground respectively provided on both sides of the granulation tower, a mixing mechanism connected to a feed port of the granulation tower provided on the left base frame, a screening machine fixedly connected to the left base frame provided at the feed port above the mixing mechanism, a screw feeder located on the left base frame provided between the screening outlet of the screening machine and the feed port of a jaw crusher, while adding mixed fertilizer while maintaining the original sulfur and carbon elements, and scientifically proportioning nitrogen, phosphorus, potassium and trace elements according to crop requirements and soil conditions, and by integrating the trace elements into the mixed fertilizer, improving soil structure, enhancing water and fertilizer retention capacity, reducing nutrient loss, and reducing environmental pollution, the fertilizer is suitable for a variety of crops and soil types.

Description

Technical Field

[0001] The invention relates to the technical field of chelated blended fertilizers, in particular to a sulfur-carbon double-base chelated blended fertilizer production device and a use method thereof. Background Art

[0002] In agricultural production, the quality and performance of fertilizers play a key role in crop yield and quality. Sulfur-carbon dual-base chelated fertilizer, as a new type of fertilizer, combines the advantages of sulfur, carbon, and chelation technology. Sulfur is an essential nutrient for plants, involved in protein synthesis and enzyme activity, and can effectively improve soil. Chelating agents combine with trace elements to form stable compounds, preventing precipitation and enhancing plant absorption.

[0003] Related Art 1 (Publication No.: CN118496042B) discloses a sulfur-carbon dibasic chelate fertilizer production device and method of use. The disclosed technical solution utilizes an existing granulation tower for granulation, then mixes the fertilizer with organic carbon that can be directly applied to the soil, eliminating the need for adding the organic carbon to a chelating agent. The organic carbon also absorbs moisture removed from the fertilizer granules by the granulation tower.

[0004] In the above-mentioned disclosed technical solutions, the following problems were found in the related technologies: With the continuous development of agricultural technology and the destruction of soil structure by industrial pollution, fertilizers need to be supplemented with trace elements other than sulfur and carbon according to the environment. In response to this, we proposed a sulfur-carbon dual-base chelated blended fertilizer production device and its use method.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background technology section of this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. 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 art. To solve the problems in the production of chelated blended fertilizers in the prior art, the present invention provides a sulfur-carbon dibasic chelated blended fertilizer production device and a method for using the same. The device utilizes a post-mixing fertilizer addition structure combined with a chelated fertilizer mixing structure to improve the quality of the chelated blended fertilizer. The specific technical solution is as follows:

[0007] A sulfur-carbon dibase chelate blended fertilizer production device comprises a granulation tower placed on the ground, a left base frame and a right base frame placed on the ground are respectively provided on both sides of the granulation tower, a melting tank connected to the feed inlet of the granulation tower is provided on the left base frame, the feed inlet of the melting tank is connected to a mixing mechanism fixed to the left base frame, a screening machine fixed to the left base frame is provided at the feed inlet above the mixing mechanism, a jaw crusher fixed to the left base frame is provided at the feed inlet above the screening machine, and a screw conveyor located on the left base frame is provided between the screening outlet of the screening machine and the feed inlet of the jaw crusher;

[0008] A chelating agent adding tank is fixedly connected to the left base frame, and a chelating tank fixedly connected to the left base frame is provided at the discharge port of the chelating agent adding tank, and the discharge port of the chelating tank is communicated with the inner cavity of the mixing mechanism;

[0009] A mixed fertilizer adding mechanism is fixedly connected to the left base frame, and a discharge port of the mixed fertilizer adding mechanism is communicated with the inner cavity of the mixing mechanism;

[0010] A drying box is fixedly connected to the right base frame, a drop port connected to the discharge of the granulation tower is provided above the drying box, a screening mechanism fixed to the right base frame is provided below the drying box, the discharge ports of the screening mechanism are respectively connected to extrusion granulators, a partition bin fixed to the right base frame is provided at the discharge port of the extrusion granulator, and the extrusion granulator and the partition bin are connected via a mixer fixed to the right base frame.

[0011] In the above technical solution, the mixed fertilizer adding mechanism includes an adding tank fixedly connected to the left base frame, the top of the adding tank is rotatably provided with an inner shaft extending to the inner cavity, the outer wall of the inner shaft is sleeved with an outer shaft rotatably provided on the adding tank, the inner shaft extends to the outer wall of the inner cavity of the adding tank and is evenly provided with branch-type inner stirring blades, the outer shaft extends to the outer wall of the inner cavity of the adding tank and is evenly provided with branch-type outer stirring blades, and the adding tank is provided with a linkage rotating component that drives the inner shaft and the outer shaft to rotate simultaneously.

[0012] The linked rotating 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 a driving bevel gear meshing with the first and second driven bevel gears is provided on the top rotation of the adding tank.

[0013] The mixing mechanism includes a mixing tank fixed to the left base frame, wherein the inner cavity of the mixing tank is uniformly embedded with bamboo-shaped feeding cylinders in the longitudinal direction, a bulk material seat rotatably connected to the inner wall of the mixing tank is provided between two adjacent bamboo-shaped feeding cylinders, and a material distribution plate is provided on the inner wall of the bulk material seat at a uniform circumferential inclination, and a linkage speed-differentiated material spreading assembly is provided on the outer wall of the mixing tank for driving each bulk material seat to rotate at different speeds simultaneously;

[0014] The inner cavity of the mixing tank is rotatably provided with a rotating shaft, and the outer wall of the rotating shaft is circumferentially evenly provided with mixing and stirring blades, and the mixing and stirring blades are located in the inner cavity of the bamboo-shaped feeding cylinder at the bottom end.

[0015] The linked speed-differentiated material spreading assembly includes a gear ring fixed to the bottom of the bulk material seat, and the gear ring is attached to the bamboo-section feeding barrel. A low-speed rotating shaft, a medium-speed rotating shaft and a high-speed rotating shaft are sequentially arranged on the outer wall of the mixing tank for longitudinal rotation. The low-speed rotating shaft and the medium-speed rotating shaft, and the medium-speed rotating shaft and the high-speed rotating shaft are all connected by universal joints. The outer walls of the low-speed rotating shaft, the medium-speed rotating shaft and the high-speed rotating shaft are respectively sleeved with a low-speed gear, a medium-speed gear and a high-speed gear that mesh with the gear ring. The outer wall of the mixing tank is sequentially provided with through grooves corresponding to the low-speed gear, the medium-speed gear and the high-speed gear.

[0016] 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, and a spreading cone located above each bulk material seat is sleeved on the outer wall of the rotating shaft in sequence. The bottom end of the rotating shaft is sleeved on a conical base that fits the bottom of the inner wall of the mixing tank, and discharge plates that fit the bottom of the inner wall of the mixing tank are evenly arranged circumferentially on the conical base.

[0017] A heater is embedded in the interlayer of the drying box, a material port extending to the inner cavity is embedded in the center of the outer wall of the drying box, the drying box is rotatably arranged on the right base frame, and a material leveling plate attached to the inner wall is uniformly rotated in the circumferential direction of the inner cavity of the drying box.

[0018] The screening mechanism includes a screening box fixedly connected to the right base frame, and the inner cavity of the screening box is provided with a first screening slot, a second screening slot, a third screening slot and a fourth screening slot in sequence in a longitudinally inclined manner. Screen rollers are provided on the first screening slot, the second screening slot and the third screening slot in sequence along the slope, and the spacing of the screen rollers on the first screening slot is greater than the spacing of the screen rollers on the second screening slot, and the spacing of the screen rollers on the second screening slot is greater than the spacing of the screen rollers on the third screening slot. Each of the screening rollers is sleeved with a blanking gear, and two adjacent blanking gears are meshed with each other.

[0019] The screening machine includes a base fixed to the left base frame, a screening box is provided above the base, and the screening box is connected to the base through an elastic telescopic member, a vibration motor is provided on the outer wall of the screening box, a screening inlet is embedded in the top of the screening box, and the screening inlet is connected to the outlet of the jaw crusher through a soft connecting pipe, a screen plate is obliquely embedded in the inner cavity of the screening box, a screening material port extending to the end of the screen plate is embedded in the outer wall of the screening box, and a guide hopper penetrating the inner cavity of the base is embedded in the bottom of the screening box;

[0020] The elastic telescopic member includes an outer cylinder rotatably arranged on the base, a docking seat is rotatably arranged on the bottom of the screening box, a movable rod extending to the inner cavity of the outer cylinder is fixedly connected to the side wall of the docking seat, and an elastic member is arranged between the docking seat and the outer cylinder and is sleeved on the outside of the movable rod.

[0021] A method for using a sulfur-carbon double-base chelated blended fertilizer production device, comprising:

[0022] S1: Put the block raw materials containing sulfur elements into the jaw crusher, open the chelating agent adding tank at the same time, and put the mixed fertilizer raw materials into the adding tank. Then the chelated fertilizer and the mixed fertilizer enter the two parts of the bamboo-shaped feeding cylinder through the material guide channel respectively, so that the chelated fertilizer and the mixed fertilizer fall on the two groups of feeding plates with different rotation speeds respectively. At the same time, the crushed sulfur-containing crushed materials fall into the inner cavity of the screening machine. The qualified crushed raw materials are introduced into the crushed sulfur block raw materials through the feeding channel to the uppermost bulk material seat. The screened sulfur-containing block raw materials are transported to the jaw crusher through the screw feeder for further crushing.

[0023] S2: The lump raw materials of sulfur elements are introduced into the uppermost bulk material seat, the fertilizers after chelation tank treatment fall on the middle bulk material seat, and the mixed fertilizers fall on the bottom bulk material seat. Through the fertilizer dispersion treatment in the three spaces, the three materials fall evenly on the rotating mixing blades. After mixing, the conical base attached to the bottom of the inner wall of the mixing tank drives multiple circumferential discharge plates to drive the mixed fertilizer to the discharge hole in turn, and then discharged from the discharge hole and enter the interior of the granulation tower after treatment through the melting tank.

[0024] S3: After being processed in the granulation tower, the feed port of the drying box is adjusted to a position corresponding to the drop port of the granulation tower above. At the same time, carbon powder is added to the interior of the drying box, and then the interior is heated by the heater located in the interlayer of the drying box. After that, the feed port is adjusted to a position corresponding to the inlet of the screening box below, and the fertilizer is sent to the feed port through the continuously rotating material plate and falls into the interior of the screening box through the feed port.

[0025] S4: The dried fertilizer falls onto the first sieve slot through the material port. The smaller fertilizer falls onto the second sieve slot through the gap between the two sieve rollers and is screened again through the third sieve slot. Thus, the fertilizer is screened out according to four specifications. The classified fertilizer enters the four extrusion granulators through their respective discharge nozzles.

[0026] S5: After being processed by the extrusion granulator, it enters the 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 mixer. After being mixed by the mixer, the fertilizers are collected separately in the compartments. Finally, they are discharged into the automatic quantitative packaging machine through the compartments. The fertilizers are accurately weighed and packaged by electronic weighing sensors.

[0027] Compared with the prior art, the present invention has the following beneficial effects: the sulfur-carbon double-base chelated blended fertilizer production device and its use method:

[0028] 1. On the basis of maintaining the original sulfur and carbon elements, add mixed fertilizers, and scientifically match nitrogen, phosphorus, potassium and trace elements according to crop needs and soil conditions. By integrating trace elements into the mixed fertilizers, the soil structure can be improved, the water and fertilizer retention capacity can be enhanced, nutrient loss can be reduced, and environmental pollution can be reduced, making it suitable for a variety of crops and soil types.

[0029] Second, after the chelated fertilizer and mixed fertilizer are added to the two bamboo-jointed feeding barrels, they fall onto two sets of feeding plates with different rotation speeds. Based on the compatibility of different fertilizers, the chelated fertilizer and mixed fertilizer entering the bamboo-jointed feeding barrel are dispersed in different spaces, and then fall into the bottom bamboo-jointed feeding barrel. The rotating shaft then drives the mixing blades to mix the chelated fertilizer and mixed fertilizer, thereby improving the mixing effect of the chelated fertilizer and mixed fertilizer, and thus ensuring the quality of the sulfur-carbon double-base chelated mixed fertilizer.

[0030] 3. The dried fertilizer falls onto the first sieve slot through the material port. The smaller fertilizer falls onto the second sieve slot through the gap between the two sieve rollers and is screened again through the third sieve slot. The fertilizer is then screened out according to four specifications. After classification, the subsequent material separation operation is facilitated.

[0031] Fourth, the inner shaft and the outer shaft rotate simultaneously through the linkage rotating assembly, so that the three branch-type outer stirring blades and the three branch-type inner stirring blades rotate simultaneously, thereby uniformly stirring the mixed fertilizer additives. Through the two groups of internal and external synchronous stirring, the quality of the mixed fertilizer is improved, thereby ensuring the final discharge quality of the sulfur-carbon dibase chelated blended fertilizer.

[0032] 5. In the process of crushing the lump raw materials containing sulfur elements, the materials screened by the screening machine are conveyed to the jaw crusher through a screw conveyor for further crushing, thereby reducing the loss of materials and circulating the crushing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic structural diagram of a sulfur-carbon double-base chelated blended fertilizer production device of the present invention;

[0034] Figure 2 It is a structural schematic diagram of the mixed fertilizer adding mechanism of the present invention;

[0035] Figure 3 It is a structural cross-sectional view of the adding tank portion of the present invention;

[0036] Figure 4 It is a structural schematic diagram of the mixing mechanism of the present invention;

[0037] Figure 5 It is a structural cross-sectional view of the mixing tank portion of the present invention;

[0038] Figure 6 It is a schematic diagram of the structure explosion of the mixing mechanism of the present invention;

[0039] Figure 7 It is a schematic diagram of the structure inside the drying box and the screening box of the present invention;

[0040] Figure 8 It is a structural cross-sectional view of the drying box and the screening box of the present invention;

[0041] Figure 9 It is a structural schematic diagram of the screening machine part of the present invention;

[0042] Figure 10 It is a structural cross-sectional view of the screening box portion of the present invention;

[0043] Figure 11 for Figure 8 A local enlarged view of point A;

[0044] in, Figures 1 to 11The corresponding relationship between the reference numerals and the component names is as follows: 1. Granulating tower; 2. Left base frame; 3. Right base frame; 4. Mixing mechanism; 5. Screening machine; 6. Jaw crusher; 7. Screw feeder; 8. Mixed fertilizer adding mechanism; 9. Screening mechanism; 91. Screening box; 10. Chelating agent adding tank; 11. Chelating tank; 12. Compartment bin; 13. Drying box; 14. Extrusion granulator; 15. Linkage rotating assembly; 16. Heater; 17. First sieve slot; 18 , second sieve slot; 19, third sieve slot; 20, fourth sieve slot; 21, sieve roller; 22, blanking gear; 23, discharge nozzle; 24, center roller; 25, material leveling plate; 26, enclosure; 27, material port; 28, mixer; 30, melting tank; 40, linkage speed-differentiated material spreading assembly; 41, mixing tank; 42, bamboo-type feeding barrel; 43, bulk material seat; 44, material distribution plate; 45, ball bearing; 46, mixing and stirring blade; 47, rotating shaft; 48, spreading cone; 49, Connecting ribs; 401, gear ring; 402, low-speed shaft; 403, medium-speed shaft; 404, high-speed 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. Material guide hopper; 54. Elastic telescopic member; 541. Outer cylinder; 542. Docking seat; 543. Movable rod; 544. Elastic member; 55. Screening port; 56. Screening inlet; 57. Screen plate; 58. Vibrating 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 DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] The following is a combination of specific implementation cases and attached Figure 1 -Attached Figure 11 The present invention is further described below, but the present invention is not limited to these embodiments.

[0047] A sulfur-carbon dibasic chelate blended fertilizer production device includes a granulation tower 1 placed on the ground, with a left base frame 2 and a right base frame 3 placed on the ground on both sides of the granulation tower 1. The left base frame 2 and the right base frame 3 are fixed on both sides of the granulation tower 1. A melting tank 30 connected to the feed port of the granulation tower 1 is provided on the left base frame 2. The feed port of the melting tank 30 is connected to a mixing mechanism 4 fixed to the left base frame 2. The melting tank 30 heats the room temperature solid material contained therein to a certain temperature and then melts it into a heat exchange container. The discharge port below the mixing mechanism 4 is connected to the feed port of a bucket elevator, and the discharge port of the bucket elevator is connected to the feed port of the granulation tower 1. The mixed fertilizer is transported to the interior of the granulation tower 1 by the bucket elevator.

[0048] A screening machine 5, fixed to the left base frame 2, is located above the mixing mechanism 4 at the feed inlet. A jaw crusher 6, also fixed to the left base frame 2, is located above the screening machine 5 at the feed inlet. The jaw crusher 6 is ideal for bulk materials containing sulfur. Its operating principle is that the movable jaw plate periodically oscillates back and forth relative to the fixed jaw plate. When the movable jaw plate approaches the fixed jaw plate, the material is crushed between the two jaw plates by compression, splitting, and bending. When the movable jaw plate moves away from the fixed jaw plate, material that has been crushed to a size smaller than the discharge opening is discharged through the discharge opening by gravity. This crushes bulk materials to a particle size of approximately 5-10 mm for subsequent processing. The jaw crusher 6 is fixed at the topmost portion of the left base frame 2. The screening machine 5 is fixed to the left base frame 2 and positioned between the mixing mechanism 4 and the screening machine 5. The discharge opening of the jaw crusher 6 is in sealed communication with the feed opening of the screening machine 5, and the discharge opening of the screening machine 5 is in sealed communication with the feed opening of the mixing mechanism 4.

[0049] A screw conveyor 7 located on the left base frame 2 is provided between the screening 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 sealed and connected to the screening material outlet of the screening machine 5. A channel toward the feed inlet of the jaw crusher 6 is fixedly connected at an angle at the top discharge port of the screw conveyor 7, so that the screw conveyor 7 conveys the material screened by the screening machine 5 to the jaw crusher 6 through the screw conveyor 7 for further crushing.

[0050] Screening machine 5 is a vibrating screener. The vibrating force generated by the vibrating motor 58 causes the material to be thrown across the screen. Material smaller than the mesh size passes through the screen as undersize, while material larger than the mesh size remains on the screen and is discharged as oversize. This effectively selects materials that meet the particle size requirements, ensuring a uniform particle size for subsequent processes. The mesh size is generally controlled between 3 and 5 mm.

[0051] A chelating agent addition tank 10 is fixedly connected to the left base frame 2. A chelating tank 11 fixedly connected to the left base frame 2 is provided at the discharge port of the chelating agent addition tank 10, and the discharge port of the chelating tank 11 is connected to the inner cavity of the mixing mechanism 4. The discharge port of the chelating agent addition tank 10 is sealed and connected to the feed port of the chelating tank 11. The chelating tank 11 is fixed to the left base frame 2 and is located below the chelating agent addition tank 10. The discharge port of the chelating tank 11 is connected to the inner cavity of the mixing mechanism 4 through an inclined pipe. After the chelating agent is added to the inside of the chelating tank 11, it is processed by the heater 16 and the stirring member in the chelating tank 11 and then added to the inside of the mixing mechanism 4.

[0052] A fertilizer adding mechanism 8 is fixedly connected to the left base frame 2, and the discharge port of the fertilizer adding mechanism 8 is connected to the inner cavity of the mixing mechanism 4. The discharge port of the fertilizer adding mechanism 8 is connected to the inner cavity of the mixing mechanism 4 through an inclined pipe. The raw materials discharged from the chelating tank 11 are stirred and mixed with the fertilizer by the mixing mechanism 4.

[0053] A drying box 13 is fixedly connected to the right base frame 3. A drop port connected to the discharge of the granulation tower 1 is provided above the drying box 13. A screening mechanism 9 fixed to the right base frame 3 is provided below the drying box 13. The discharge ports of the screening mechanism 9 are respectively connected to the extrusion granulator 14. A grid bin 12 fixed to the right base frame 3 is provided 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 discharged into the screening mechanism 9 by the drying box 13. The fertilizers of different shapes are classified and respectively enter the extrusion granulator 14. The dried fertilizers are subjected to secondary granulation to make their shape and particle size more in line with the requirements of use. Subsequently, after being processed by the extrusion granulator 14, they are mixed with fertilizers containing any two or three of the three nutrients of nitrogen, phosphorus and potassium. Finally, the mixed fertilizers are respectively collected in the grid bin 12.

[0054] Four mixers 28 are fixed laterally to the right base frame 3 in sequence. The feed port of the mixer 28 is sealed and connected to the discharge port of each extrusion granulator 14. The discharge port of the mixer 28 is sealed and connected to the feed port of the four collecting bins of the compartment bin 12 below. A mixing feed port is installed on the surface of the mixer 28. According to the fertilizer demand, fertilizers containing any two or three of the three nutrients of nitrogen, phosphorus and potassium are added to the mixer 28 through the mixing feed port. The mixer 28 uses the internal stirring element to mix the chelated fertilizer with other fertilizers.

[0055] Wherein, the mixed fertilizer adding mechanism 8 includes an adding tank 81 fixedly connected to the left base frame 2, and the top of the adding tank 81 is rotatably provided with an inner shaft 82 extending to the inner cavity, and the outer wall of the inner shaft 82 is sleeved with an outer shaft 83 rotatably provided on the adding tank 81. An L-shaped fixing frame 87 is fixedly installed on the top of the adding tank 81, and a bearing is embedded and installed on the top of the inner wall of the fixing frame 87. The upper end of the inner shaft 82 is embedded and installed inside the bearing, and the lower end of the inner shaft 82 passes through the top of the adding tank 81 and extends to the inner cavity. The outer shaft 83 is movably sleeved on the outside of the inner shaft 82 through a through hole opened in the center, so that the outer shaft 83 fits on the outer wall of the inner shaft 82 and rotates. The lower end of the outer shaft 83 passes through the top of the adding tank 81 and extends to the inner cavity. The outside of the outer shaft 83 rotates on the through hole at the top of the adding tank 81 through the sleeved bearing.

[0056] The bearing seat is fixed on the fixed frame 87 by a vertical support column, the bearing is embedded in the interior of the bearing seat, and the outer shaft 83 is embedded in the interior of the bearing, and the stability of the inner shaft 82 and the outer shaft 83 is improved by the support column. The inner shaft 82 extends to the outer wall of the inner cavity of the adding tank 81 and is evenly provided with branch-type inner stirring blades 89, and the outer shaft 83 extends to the outer wall of the inner cavity of the adding tank 81 and is evenly provided with branch-type outer stirring blades 88. The inner shaft 82 is located on the outer wall of the inner cavity of the adding tank 81 and is circumferentially provided with branch-type inner stirring blades 89 in sequence, and the outer shaft 83 is located on the outer wall of the inner cavity of the adding tank 81 and is circumferentially provided with branch-type outer stirring blades 88 in sequence, and the circumferential array of three branch-type outer stirring blades 88 is on the outer periphery of the branch-type inner stirring blades 89. The adding tank 81 is provided with a linkage rotating assembly 15 that drives the inner shaft 82 and the outer shaft 83 to rotate simultaneously.

[0057] By adopting the above structure, the inner shaft 82 and the outer shaft 83 rotate simultaneously through the linkage rotating component 15, so that the three branch-type outer stirring blades 88 and the three branch-type inner stirring blades 89 rotate simultaneously, thereby uniformly stirring the mixed fertilizer additives. Through the two groups of internal and external synchronous stirring, the quality of the mixed fertilizer is improved, thereby ensuring the final output quality of the sulfur-carbon dibase chelated blended fertilizer.

[0058] The linked rotation assembly 15 includes a first driven bevel gear 84 mounted on the outer wall of the inner shaft 82, a second driven bevel gear 85 mounted on the outer shaft 83, and a driving bevel gear 86 is rotatably mounted on the top of the addition tank 81, meshing with both the first driven bevel gear 84 and the second driven bevel gear 85. The first driven bevel gear 84 is fixedly mounted on the outer wall of the inner shaft 82, located outside the addition tank 81, through a central mounting hole. The second driven bevel gear 85 is fixedly mounted on the outer wall of the outer shaft 83, located outside the addition tank 81, through a central mounting hole. The motor is secured to the top of the addition tank 81, such as via a hood. The driving bevel gear 86 is fixedly mounted on the outer wall of the motor output shaft through a central mounting hole. The motor is electrically connected to an external power source via wires.

[0059] It is worth noting that the mixing mechanism includes a mixing tank 41 fixed to the left base frame 2, and the inner cavity of the mixing tank 41 is evenly embedded with a bamboo-shaped feeding barrel 42 in the longitudinal direction. A bulk material seat 43 rotatably connected to the inner wall of the mixing tank 41 is provided between two adjacent bamboo-shaped feeding barrels 42. The inner wall of the bulk material seat 43 is evenly inclined in the circumferential direction and a dividing plate 44 is provided. The outer wall of the mixing tank 41 is provided with a linkage speed-differentiated spreading assembly 40 that drives each bulk material seat 43 to rotate at different speeds at the same time.

[0060] Three bulk material holders 43 and three bamboo-like feeding barrels 42 are interlaced within the inner cavity of the mixing tank 41. The bulk material holders 43 rotate against the surfaces of the bamboo-like feeding barrels 42, ensuring that there is no gap between adjacent bamboo-like feeding barrels 42. The bamboo-like feeding barrels 42 are secured to the inner wall of the mixing tank 41 by circumferential connecting ribs 49. A continuous movable groove is defined along the circumferential outer wall of each bulk material holder 43, while a circumferential chute is defined along the inner wall of the mixing tank 41. Ball bearings 45 are movably embedded within the movable cavity formed by each movable groove and chute. The circumferential ball bearings 45 ensure the stability of the bulk material holders 43 during rotation.

[0061] 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 stirring blades 46 in the circumferential direction, and the mixing stirring blades 46 are located in the inner cavity of the bamboo-shaped feeding barrel 42 at the bottom. The motor is fixed by a machine cover at the bottom center position of the mixing tank 41, and the output shaft of the motor passes 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. The three bulk material seats 43 are rotated at different speeds simultaneously through the linkage speed-differentiating material spreading assembly 40, so that the circumferential array of the bulk material seat 43 inner wall distribution plate 44 rotates at different speeds. A material guide channel is fixedly embedded and installed on the outer wall of the mixing tank 41, and the two material guide channels respectively connect the mixed fertilizer adding mechanism 8 and the chelating tank 11 with the two adjacent bamboo-shaped feeding barrels 42 above.

[0062] With the above structure, after the chelated fertilizer and mixed fertilizer are respectively fed into the two bamboo-jointed feeding barrels 42, they fall onto two sets of feeding plates 44 with different rotational speeds. Depending on the compatibility of the different fertilizers, the chelated fertilizer and mixed fertilizer entering the bamboo-jointed feeding barrel 42 are dispersed in different spaces, allowing the chelated fertilizer and mixed fertilizer to fall into the lowermost bamboo-jointed feeding barrel 42 in a dispersed manner. The rotating shaft 47 then drives the mixing and stirring blades 46 to mix the chelated fertilizer and mixed fertilizer, thereby improving the mixing effect of the chelated fertilizer and mixed fertilizer and ensuring the quality of the sulfur-carbon dibasic chelated mixed fertilizer.

[0063] In addition, the linkage speed-differentiated material spreading assembly 40 includes a gear ring 401 fixed to the bottom of the bulk material seat 43, and the gear ring 401 is attached to the bamboo-shaped feeding barrel 42. The gear ring 401 is located between the bulk material seat 43 and the bamboo-shaped feeding barrel 42, so that the bulk material seat 43 rotates as the gear ring 401 is attached to the bamboo-shaped 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. The low-speed rotating shaft 402 and the medium-speed rotating shaft 403 and the medium-speed rotating shaft 403 and the high-speed rotating shaft 404 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 that mesh with the ring gear 401. The outer wall of the mixing tank 41 is sequentially opened with through grooves 409 corresponding to the low-speed gear 406, the medium-speed gear 407 and the high-speed gear 408, respectively.

[0064] The low-speed gear 406, the intermediate-speed gear 407, and the high-speed gear 408 each pass through slots 409 at various locations and mesh with the three corresponding ring gears 401. A housing 411 is fixedly attached to the outer wall of the mixing tank 41, covering the low-speed gears 406, the intermediate-speed gears 407, and the high-speed gear 408. The top end of the low-speed shaft 402 is rotatably connected to the top of the inner wall of the housing 411 via a bearing. The bottom end of the high-speed shaft 404 is rotatably connected to the bottom of the inner wall of the housing 411 via a bearing.

[0065] A driving gear 412 is mounted on the outer wall of the rotating shaft 47 extending outside the mixing tank 41. A driven gear 413 is mounted on the outer wall of the low-speed rotating shaft 402, meshing with the driving gear 412. The drive motor of the rotating shaft 47 simultaneously drives the rotating shaft 47, the low-speed gear 406, the medium-speed gear 407, and the high-speed gear 408. The outer wall of the rotating shaft 47 is sequentially mounted with a spreading cone 48 located above each bulk material seat 43.

[0066] With the above structure, the spreading cone 48 is a conical structure. The spreading cone 48 allows the fertilizer to fall in front of the bulk material seat 43 and fall on multiple distribution plates 44 through centrifugal circumferential dispersion, thereby improving the dispersion effect of the fertilizer entering the inner cavity of the mixing tank 41, thereby improving the fertilizer mixing effect.

[0067] The bottom end of the rotating shaft 47 is sleeved with a conical base 414 that fits against the bottom of the inner wall of the mixing tank 41. Discharge plates 415 that fit against the bottom of the inner wall of the mixing tank 41 are evenly arranged circumferentially on the conical base 414, so that the discharge plates 415 rotate as the conical base 414 fits against the bottom of the inner wall of the mixing tank 41. A wear-resistant chassis 416 is fixedly installed at the bottom of the conical base 414, and discharge holes 417 are evenly opened circumferentially on the bottom of the inner wall of the mixing tank 41. The circumferential discharge holes 417 are arrayed with the motor at the bottom as the center.

[0068] A feed channel 410 for screening the bulk raw materials of elemental sulfur is fixedly embedded at the eccentric position of the top of the mixing tank 41. After passing through the screening machine 5, the crushed bulk raw materials of elemental sulfur are introduced into the uppermost bulk material seat 43 through the feed channel 410. The fertilizer processed by the chelating tank 11 falls on the bulk material seat 43 in the middle, and the mixed fertilizer falls on the bulk material seat 43 at the bottom. Through the fertilizer dispersion treatment in the three spaces, the three materials fall evenly on the rotating mixing and stirring blades 46. After mixing, the conical base 414 attached to the bottom of the inner wall of the mixing tank 41 drives multiple circumferential discharge plates 415 to drive the mixed fertilizer to the discharge hole 417 in turn, and then discharged from the discharge hole 417 to the outside and enter the interior of the granulation tower 1 for the next step of processing.

[0069] A heater 16 is embedded in the interlayer of the drying box 13. The heater 16 is connected to an external power supply via a wire. When the power is connected, the heater 16 heats the drying box 13. A feed port 27 extending into 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. The motor installed on the right base frame 3 drives the drying box 13 to rotate on the right base frame 3 through the output shaft of the motor. When feeding, the feed port 27 is adjusted to a position corresponding to the upper feed port, so that the fertilizer passes through the feed port and the feed port 27 and enters the interior of the drying box 13. When feeding to the screening mechanism 9, the feed port 27 is adjusted downward.

[0070] The inner cavity of the drying box 13 is provided with a screed plate 25 that is attached to the inner wall and rotates uniformly in the circumferential direction. The motor on the right base frame 3 drives the central roller 24 to rotate through the motor output shaft, so that the central roller 24 drives the six circumferential screed plates 25 to slide in the inner wall of the drying box 13. When discharging, the fertilizer is scraped off to the material port 27 in sequence. During the drying process, the internal fertilizer is evenly heated by the screed plates 25.

[0071] In addition, the screening mechanism 9 includes a screening box 91 fixed 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 sequence and longitudinally inclined. Screen 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 screen rollers 21 on the first screening slot 17 is greater than the spacing of the screen rollers 21 on the second screening slot 18. The spacing of the screen rollers 21 on the second screening slot 18 is greater than the spacing of the screen rollers 21 on the third screening slot 19. Each screen roller 21 is sleeved with a blanking gear 22, and two adjacent blanking gears 22 are meshed with each other.

[0072] Motors are secured to the outer walls of the first, second, and third sieve slots 17, 18, and 19 via hoods, and the motor's output shaft is fixedly connected to one end of the shaft on which one of the sieve rollers 21 is located. A retaining block 26 is fixedly mounted on each of the first, second, third, and fourth sieve slots 17, 18, 19, and 20. Discharge nozzles 23 are fixedly mounted on the surface of the retaining block 26 on the side where the material is discharged, and each discharge nozzle 23 is connected to the feed inlet of four extrusion granulators 14.

[0073] With the above structure, the fertilizer after drying falls onto the first sieve slot 17 through the material port 27, and the fertilizer with smaller specifications falls onto the second sieve slot 18 through the gap between the two sieve rollers 21, and then is screened again through the third sieve slot 19, so that the fertilizer is screened out according to four specifications. After classification processing, it brings convenience to the subsequent material separation operation.

[0074] Furthermore, the screening machine 5 includes a base 52 fixedly connected to the left base frame 2, a screening box 51 is provided above the base 52, and the screening box 51 is connected to the base 52 through an elastic telescopic member 54, and a vibration motor 58 is provided on the outer wall of the screening box 51, and the vibration motor 58 is connected to the external power supply through a wire. 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 through a flexible connecting pipe. A sieve plate 57 is embedded in the inner cavity of the screening box 51 at an angle, and a sieve opening 55 extending to the end of the sieve plate 57 is embedded in the outer wall of the screening box 51, and a material guide hopper 53 is embedded in the bottom of the screening box 51, which passes through the inner cavity of the base 52, and the material guide hopper 53 passes through the base 52 and is connected to the feed channel 410;

[0075] The elastic telescopic member 54 includes an outer cylinder 541 rotatably set on the base 52, and a docking seat 542 is rotatably set at the bottom of the screening box 51. The side wall of the docking seat 542 is fixed with a movable rod 543 extending to the inner cavity of the outer cylinder 541, and an elastic member 544 is provided between the docking seat 542 and the outer cylinder 541 and is sleeved on the outside of the movable rod 543. The elastic member 544 can be a compression spring, and the movable rod 543 and the outer cylinder 541 constitute a telescopic rod.

[0076] A method for using a sulfur-carbon double-base chelated blended fertilizer production device, such as Figures 1 to 11 As shown:

[0077] 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, and then the chelated fertilizer and the mixed fertilizer enter the two parts of the bamboo-shaped feeding cylinder 42 through the material guide channel respectively, so that the chelated fertilizer and the mixed fertilizer fall on the two groups of feeding plates 44 with different rotation speeds respectively. At the same time, the crushed sulfur-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 block raw material through the feeding channel 410 to the uppermost bulk material seat 43. The screened sulfur-containing block raw material is transported to the jaw crusher 6 through the screw feeder 7 and crushed again.

[0078] S2: The block raw material of sulfur element is introduced into 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. Through the fertilizer dispersion treatment in the three spaces, the three materials are evenly dropped on the rotating mixing and stirring blades 46. After mixing, the conical base 414 attached to the bottom of the inner wall of the mixing tank 41 drives multiple circumferential discharge plates 415 to drive the mixed fertilizer to the discharge hole 417 in turn, and then discharged from the discharge hole 417 and enters the interior of the granulation tower 1 after being processed by the melting tank 30.

[0079] 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 drop 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 the heater 16 located in the interlayer of the drying box 13. After that, the feed port 27 is adjusted to a position below corresponding to the entrance of the screening box 91, and the fertilizer is sent to the feed port 27 by the continuously rotating material plate 25, and falls into the interior of the screening box 91 through the feed port 27.

[0080] 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. It is then screened again through the third sieve slot 19, thereby screening the fertilizer according to four specifications. The classified fertilizers enter the four extrusion granulators 14 through their respective discharge nozzles 23.

[0081] S5: After being processed by the extrusion granulator 14, the fertilizer enters the mixer 28. At the same time, 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 and processed by each mixer 28, the fertilizers are respectively collected in the compartments 12. Finally, they are discharged into the automatic quantitative packaging machine through the compartments 12, and the fertilizers are accurately weighed and packaged by the electronic weighing sensor.

[0082] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying 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 cannot be understood as a limitation on the present invention.

[0083] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one such feature.

[0084] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0085] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A sulfur-carbon double-base chelate blend fertilizer production device, comprising a granulation tower (1) placed on the ground, with a left base frame (2) and a right base frame (3) placed on the ground provided 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) fixed to the left base frame (2); a screening machine (5) fixed to the left base frame (2) is provided at the feed port above the mixing mechanism (4); a jaw crusher (6) fixed to the left base frame (2) is provided at the feed port above the screening machine (5); a screw feeder (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), and a chelating tank (11) fixedly connected to the left base frame (2) is provided 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 the discharge port 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 provided above the drying box (13), a screening mechanism (9) fixed to the right base frame (3) is provided 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 provided at the discharge port of the extrusion granulator (14), and the extrusion granulator (14) and the compartment bin (12) are connected via a mixer (28) fixed to the right base frame (3); The mixing mechanism (4) includes a mixing tank (41) fixed to the left base frame (2), the inner cavity of the mixing tank (41) is uniformly embedded with bamboo-shaped feeding cylinders (42) in the longitudinal direction, a bulk material seat (43) rotatably connected to the inner wall of the mixing tank (41) is provided between two adjacent bamboo-shaped feeding cylinders (42), the inner wall of the bulk material seat (43) is uniformly inclined in the circumferential direction and is provided with a material distribution plate (44), and the outer wall of the mixing tank (41) is provided with a linkage speed-differentiated material spreading assembly (40) 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 end.

2. The sulfur-carbon double-base chelated blend fertilizer production device according to claim 1, characterized in that: The mixed fertilizer adding mechanism (8) includes an adding tank (81) fixedly connected to the left base frame (2), an inner shaft (82) extending to the inner cavity is rotatably provided on 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 a branch-like outer stirring blade (88) is 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 component (15) is provided on the adding tank (81) for driving the inner shaft (82) and the outer shaft (83) to rotate simultaneously.

3. The sulfur-carbon double-base chelated blended fertilizer production device according to claim 2, characterized in that: The linked rotating 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) 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 provided on the top of the adding tank (81).

4. The sulfur-carbon double-base chelated blended fertilizer production device according to claim 1, characterized in that: The linked speed-differentiated material spreading assembly (40) comprises a gear ring (401) fixed to the bottom of the bulk material seat (43), and the gear ring (401) is fitted on the bamboo-shaped 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 gap 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), and 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) that mesh with the gear ring (401), and the outer wall of the mixing tank (41) is sequentially opened with through grooves (409) corresponding to the low-speed gear (406), the medium-speed gear (407) and the high-speed gear (408).

5. The sulfur-carbon double-base chelated blended fertilizer production device according to claim 4, characterized in that: 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 spreading cone (48) located above each bulk material seat (43) is sleeved on the outer wall of the rotating shaft (47) in sequence. The bottom end of the rotating shaft (47) is sleeved on a conical base (414) that fits on the bottom of the inner wall of the mixing tank (41). Discharge plates (415) that fit on the bottom of the inner wall of the mixing tank (41) are evenly arranged circumferentially on the conical base (414).

6. The sulfur-carbon double-base chelated 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 arranged on the right base frame (3), and a material leveling plate (25) is arranged in contact with the inner wall of the inner cavity of the drying box (13) so as to rotate uniformly in the circumferential direction.

7. The sulfur-carbon double-base chelated blended fertilizer production device according to claim 1, characterized in that: The screening mechanism (9) includes a screening box (91) fixed 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, and screening rollers (21) are provided on the first screening slot (17), the second screening slot (18) and the third screening slot (19) in a manner rotating along the slope, and 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), and 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), and each of the screening rollers (21) is sleeved with a blanking gear (22), and two adjacent blanking gears (22) are meshed with each other.

8. The sulfur-carbon double-base chelated blended fertilizer production device according to claim 1, characterized in that: The screening machine (5) includes a base (52) fixed to the left base frame (2), a screening box (51) is provided above the base (52), 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), 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) through 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 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) includes 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) is provided between the docking seat (542) and the outer cylinder (541) and is sleeved on the outside of the movable rod (543).

9. The method for using the sulfur-carbon dibase chelate blend fertilizer production device according to any one of claims 1 to 8, characterized in that: S1: Put the block raw material containing sulfur 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), and 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 the two groups of feeding plates (44) with different rotation speeds, and at the same time, the crushed sulfur-containing crushed material falls into the inner cavity of the screening machine (5), and the qualified crushed raw material is introduced into the uppermost bulk material seat (43) through the feeding channel (410), and the screened sulfur-containing 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 into 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 conical base (414) attached to the bottom of the inner wall of the mixing tank (41) drives the circumferential multiple 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 upper granulation tower (1), and carbon powder is added to the interior of the drying box (13). The interior is then heated by the heater (16) located in the interlayer of the drying box (13). After that, the feed port (27) is 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 the continuously rotating material plate (25), and falls into the interior of the screening box (91) through the feed port (27); S4: The dried fertilizer passes through the feed port (27) and falls onto the first sieve slot (17). Fertilizers with smaller specifications pass through the gap between the two sieve rollers (21) and fall onto the second sieve slot (18). They are then screened again through the third sieve slot (19), thereby screening the fertilizers according to four specifications. The classified fertilizers enter the interior of 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, 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 and processed by the mixer (28), the fertilizers are respectively collected in the compartments (12). Finally, they are discharged into the automatic quantitative packaging machine through the compartments (12). The fertilizers are accurately weighed and packaged by the electronic weighing sensor.

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