Drying device for high-tower granular pesticide fertilizer

The high-tower granular fertilizer drying device, designed with auger conveyors and stirring rods, solves the problem of uneven contact between fertilizer granules and hot air, achieving uniform heating and efficient drying of fertilizer granules, reducing energy consumption, and improving granule quality and drying effect.

CN224004158UActive Publication Date: 2026-03-17GUITIANHUA (HENAN) ECOLOGICAL AGRICULTURE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

In existing granular fertilizer drying devices, the fertilizer particles do not come into uniform contact with hot air, resulting in prolonged drying time and easy clumping.

Method used

The design incorporates a screw conveyor and a stirring rod, along with a breathable mesh and a heating element, to ensure uniform heating of the fertilizer granules. The screw conveyor's batch conveying function allows the fertilizer granules to come into contact with the hot airflow sprayed from the nozzles, and the stirring rod breaks up the granules, preventing clumping caused by uneven heating or excessive humidity.

Benefits of technology

It improves drying efficiency, ensures uniform heating of granules, reduces heat waste, lowers energy consumption, and enhances the quality uniformity and looseness of fertilizer granules.

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Abstract

The utility model relates to the technical field of chemical fertilizer processing, and discloses a drying device for high-tower granular pesticide fertilizer, which comprises a machine body, a drying assembly is arranged in the machine body, the drying assembly comprises a frame body, the frame body is fixedly connected with the inner wall of the machine body, and a plurality of groups of breathable nets are mounted on the inner wall of the frame body. According to the drying device for the high-tower granular pesticide fertilizer, through the batch conveying function of the packing auger, fertilizer particles can make uniform contact with hot air flow, uneven heating is avoided, heat of the heating piece is fully mixed with the particles through the ventilation net, uniform heating is ensured, the drying efficiency is improved, the particles are effectively scattered through the stirring rods, caking is prevented, and it is ensured that the particles are loose and uniform in quality; meanwhile, the particles are conveyed to the bottom end of the frame body, circulating drying is achieved, residual moisture is further reduced, the drying effect is improved, the drying time is shortened through the synergistic effect of the auger and the stirring rod, heat energy waste is reduced, energy consumption is reduced through the circulating drying design, and the requirements for energy conservation and environmental protection are met.
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Description

Technical Field

[0001] This utility model relates to the field of fertilizer processing technology, specifically to a drying device for high-tower granular fertilizer. Background Technology

[0002] Fertilizer processing refers to the process of transforming raw materials (such as minerals, gases, organic matter, etc.) into fertilizer products suitable for agricultural production through a series of physical, chemical, or biological processes. The purpose is to increase the nutrient content of fertilizers, improve their physical properties (such as particle size, flowability, etc.), and make them easier to store, transport, and apply.

[0003] An existing patent (publication number: CN213396292U) discloses a rapid drying structure for granular fertilizer, including a working chamber. An output pipe is connected to the middle of the lower surface of the working chamber, and an inlet / outlet pipe is connected to the middle of the left end of the upper surface of the working chamber. Inlet / outlet valves are installed on the inlet / outlet pipes. A spiral tube is connected to the middle of the upper surface of the working chamber, with connecting ports at both the top and bottom. A spiral rod is screwed inside the spiral tube. This rapid drying structure for granular fertilizer, through the coordinated action of a hydraulic cylinder, a moving plate, a connecting shaft, a spiral rod, a spiral tube, a placement plate, a drive motor, a rotating shaft, a sprocket, a chain, a main shaft, and a conveying screw, can fully stir the fertilizer inside the working chamber, improving the drying speed. Through the coordinated action of a hot air blower, a buffer plate, a rotating plate, a connecting pipe, and cleaning brushes, hot air can be evenly introduced into the working chamber.

[0004] The aforementioned document states that during use, hot air can be evenly introduced into the working chamber through the combined action of the hot air blower, buffer plate, rotating plate, connecting pipe, and cleaning brush bristles. However, because the fertilizer particles accumulate inside the working chamber, it is difficult to make the fertilizer particles come into even contact with the hot air by simply turning the fertilizer particles inside the working chamber, thus prolonging the required drying time. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a high-tower granular fertilizer drying device, which has advantages such as improving drying efficiency and preventing fertilizer agglomeration, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drying device for high-tower granular fertilizer, comprising a body, wherein a drying component is provided inside the body;

[0007] The drying assembly includes a frame, which is fixedly connected to the inner wall of the machine body. Multiple sets of breathable mesh are installed on the inner wall of the frame. A heating element is fixedly connected to the inner wall of the frame. A rotating cylinder is installed inside the machine body. An auger is fixedly connected to the outer surface of the rotating cylinder. The auger contacts the inner wall of the frame. Multiple spray holes are opened on the outer surface of the rotating cylinder. A spiral conveyor is fixedly connected between the machine body and the frame. Multiple stirring rods are installed inside the machine body.

[0008] The above scheme utilizes the auger's batch conveying function to ensure that fertilizer granules are evenly contacted with the hot airflow ejected from the nozzles, thus preventing some granules from overheating or underheating.

[0009] Furthermore, a rotating base is rotatably connected to the inner wall of the machine body, the rotating base is fixedly connected to the rotating cylinder, and a servo motor is fixedly connected to the bottom end of the machine body, the output end of the servo motor is fixedly connected to the bottom end of the rotating cylinder.

[0010] Through the above scheme, the servo motor can drive the rotating drum to rotate, so that the rotating drum can convey the fertilizer granules through the auger, so that the fertilizer granules are dried in batches and heated evenly, avoiding the fertilizer granules from piling up together and affecting their drying effect.

[0011] Furthermore, the upper end of the rotating cylinder is rotatably connected to a sealing ring via a sealed bearing, and the upper end of the sealing ring is fixedly connected to an air inlet pipe. A hot air blower is installed on the outer surface of the machine body, and the other end of the air inlet pipe is fixedly connected to the output end of the hot air blower.

[0012] The above scheme allows the hot air blower to deliver hot air through the air inlet pipe into the rotating drum and spray it out from multiple nozzles, so that the hot airflow can make uniform contact with the fertilizer particles on the auger. The sealing ring facilitates the connection between the air inlet pipe and the rotating drum and prevents the air inlet pipe from twisting during the rotation of the rotating drum.

[0013] Furthermore, a sealing cover is installed at the upper end of the machine body, the air intake pipe passes through the sealing cover, and multiple circumferentially distributed exhaust holes are opened on the upper surface of the sealing cover.

[0014] The above solution allows for the easy removal of moisture from the fertilizer granules inside the machine, preventing moisture generated during the drying process from remaining inside the machine.

[0015] Furthermore, a feed pipe is fixedly connected to the upper surface of the sealing cover, a valve is installed on the outer surface of the feed pipe, and a sealing guard plate is hinged to the bottom end of the machine body.

[0016] The above solution allows for the sealing of the bottom of the machine body by setting a sealing plate, and the fertilizer granules inside the machine body can be removed by opening the sealing plate, which facilitates the subsequent processing of the dried fertilizer granules.

[0017] Furthermore, a bracket is fixedly connected to the bottom of the machine body, and two vibration modules are installed on the upper end of the bracket, both of which are in contact with the outer surface of the machine body.

[0018] The above solution allows the vibration module to transmit vibrations to the inside of the machine, enabling fertilizer particles on the screw conveyor to be discharged into the bottom of the machine, thus preventing fertilizer particles from remaining inside the screw conveyor and affecting the delivery of fertilizer.

[0019] Furthermore, each of the stirring rods is rotatably connected to the rotating base, and planetary gears are fixedly connected to the bottom ends of the plurality of stirring rods. A gear ring is fixedly connected to the inner wall of the machine body, and each of the planetary gears is meshed with the gear ring.

[0020] The above solution, through the cooperation of the gear ring and planetary gear, enables multiple stirring rods to break up the fertilizer particles inside the machine body during the rotation of the rotating base, thus preventing the fertilizer particles from clumping together.

[0021] Furthermore, the body is made of heat-insulating material, and the auger contacts the breathable mesh located inside the body.

[0022] The above solution uses heat-insulating material for the machine body to reduce the loss of internal temperature. The contact between the auger and the breathable mesh can clean the breathable mesh during the conveying of fertilizer granules, preventing fertilizer granules from adhering to the breathable mesh.

[0023] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0024] This high-tower granular fertilizer drying device uses the batch conveying function of the auger to ensure that the fertilizer granules can come into uniform contact with the hot airflow sprayed from the nozzle, avoiding overheating or underheating of some granules. At the same time, the heat emitted by the heating element is fully mixed with the granules on the auger through the air-permeable mesh, ensuring that the granules are heated evenly, thereby improving the overall drying efficiency.

[0025] The design of multiple stirring rods effectively disperses fertilizer granules, preventing them from clumping due to uneven heating or excessive humidity within the machine. This not only ensures the loose state of the granules but also guarantees uniform quality after drying. The stirring action of the rods also transports the fertilizer granules to the bottom of the frame, enabling a circulating drying process. Through batch-by-batch circulating drying, residual moisture in the granules can be further reduced, improving the drying effect. Due to the synergistic effect of the auger and stirring rods, the fertilizer granules can be dried in a shorter time, reducing heat energy waste. At the same time, the circulating drying design also reduces energy consumption, meeting the requirements of energy conservation and environmental protection. Attached Figure Description

[0026] Figure 1 Cross-sectional view of the overall structure of this application Figure 1 ;

[0027] Figure 2 For this application Figure 1 Enlarged schematic diagram of the structure at point A;

[0028] Figure 3 This is a schematic diagram of the overall structure of this application;

[0029] Figure 4 Cross-sectional view of the overall structure of this application Figure 2 ;

[0030] Figure 5 This is a schematic diagram of the frame structure of this application.

[0031] In the picture:

[0032] 1. Machine body; 2. Drying components;

[0033] 201. Frame; 202. Ventilation mesh; 203. Heating element; 204. Rotating cylinder; 205. Screw auger; 206. Spray nozzle; 207. Screw conveyor; 208. Stirring rod;

[0034] 3. Rotating base; 4. Servo motor; 5. Sealing ring; 6. Air inlet pipe; 7. Hot air blower; 8. Sealing cover; 9. Exhaust port; 10. Feed pipe; 11. Valve; 12. Sealing plate; 13. Bracket; 14. Vibration module; 15. Planetary gear; 16. Gear ring. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] Please see Figure 1 , Figure 2 and Figure 3 The drying device for high-tower granular fertilizer in this embodiment includes a body 1, and a drying component 2 is provided inside the body 1.

[0037] Please see Figure 1 , Figure 2 and Figure 5 The drying assembly 2 includes a frame 201, which is fixedly connected to the inner wall of the machine body 1. Multiple sets of breathable mesh 202 are installed on the inner wall of the frame 201. A heating element 203 is fixedly connected to the inner wall of the frame 201. A rotating cylinder 204 is installed inside the machine body 1. An auger 205 is fixedly connected to the outer surface of the rotating cylinder 204, and the auger 205 contacts the inner wall of the frame 201. Multiple spray holes 206 are opened on the outer surface of the rotating cylinder 204. A spiral conveyor 207 is fixedly connected between the machine body 1 and the frame 201. Multiple stirring rods 208 are installed inside the machine body 1. Through the batch conveying function of the auger 205, fertilizer granules can be evenly contacted with the hot airflow sprayed from the spray holes 206, avoiding overheating or underheating of some granules. At the same time, the heat emitted by the heating element 203 is fully mixed with the granules on the auger 205 through the breathable mesh 202, ensuring uniform heating of the granules and thus improving the overall drying efficiency.

[0038] Please see Figure 1 , Figure 2 and Figure 3 The design of multiple stirring rods 208 can effectively disperse fertilizer granules, preventing them from clumping together inside the machine body 1 due to uneven heating or excessive humidity. This not only ensures the loose state of the granules but also guarantees the uniform quality of the dried fertilizer granules. The stirring action of the stirring rods 208 can also transport the fertilizer granules to the bottom of the frame 201, realizing a circulating drying operation. Through batch circulating drying, the residual moisture in the granules can be further reduced, improving the drying effect. Due to the synergistic effect of the auger 205 and the stirring rods 208, the fertilizer granules can be dried in a shorter time, reducing the waste of heat energy. At the same time, the circulating drying design also reduces energy consumption, meeting the requirements of energy conservation and environmental protection.

[0039] Please see Figure 1 , Figure 2 and Figure 3A rotating base 3 is rotatably connected to the inner wall of the machine body 1. The rotating base 3 is fixedly connected to the rotating cylinder 204. A servo motor 4 is fixedly connected to the bottom end of the machine body 1. The output end of the servo motor 4 is fixedly connected to the bottom end of the rotating cylinder 204. The servo motor 4 can drive the rotating cylinder 204 to rotate, so that the rotating cylinder 204 can convey the fertilizer granules through the auger 205, so that the fertilizer granules are dried in batches and heated evenly, avoiding the fertilizer granules from piling up and affecting their drying effect. The upper end of the rotating cylinder 204 is rotated by a sealed bearing. A sealing ring 5 is connected to the machine body 1. An air inlet pipe 6 is fixedly connected to the upper end of the sealing ring 5. A hot air blower 7 is installed on the outer surface of the machine body 1. The other end of the air inlet pipe 6 is fixedly connected to the output end of the hot air blower 7. The hot air blower 7 can deliver hot air through the air inlet pipe 6 into the rotating cylinder 204 and spray it out from multiple nozzles 206, so that the hot airflow can come into uniform contact with the fertilizer particles on the auger 205. The sealing ring 5 can facilitate the connection between the air inlet pipe 6 and the rotating cylinder 204 and prevent the air inlet pipe 6 from twisting during the rotation of the rotating cylinder 204.

[0040] Please see Figure 1 , Figure 2 and Figure 3 A sealing cover 8 is installed at the upper end of the machine body 1. An air inlet pipe 6 passes through the sealing cover 8. Multiple circumferentially distributed exhaust holes 9 are opened on the upper surface of the sealing cover 8. The exhaust holes 9 facilitate the discharge of moisture from the fertilizer particles inside the machine body 1 to the outside, preventing moisture generated during the drying of fertilizer particles from accumulating inside the machine body 1. A feed pipe 10 is fixedly connected to the upper surface of the sealing cover 8. A valve 11 is installed on the outer surface of the feed pipe 10. A sealing guard plate 12 is hinged to the bottom end of the machine body 1. The sealing guard plate 12 can seal the bottom end of the machine body 1. By opening the sealing guard plate 12, the fertilizer particles inside the machine body 1 can be removed, facilitating subsequent processing of the dried fertilizer particles. A bracket 13 is fixedly connected to the bottom of the machine body 1. Two vibration modules 14 are installed on the upper end of the bracket 13. Both vibration modules 14 are in contact with the outer surface of the machine body 1. The vibration modules 14 can transmit vibration to the inside of the machine body 1, so that the fertilizer particles on the screw conveyor 207 can be discharged into the bottom of the machine body 1, avoiding the fertilizer particles from being stuck in the screw conveyor 207 and affecting the conveying of fertilizer.

[0041] Please see Figure 1 , Figure 2 and Figure 4Each stirring rod 208 is rotatably connected to the rotating base 3. Planetary gears 15 are fixedly connected to the bottom of each stirring rod 208. Gear rings 16 are fixedly connected to the inner wall of the machine body 1. Each planetary gear 15 meshes with the gear ring 16. The engagement of the gear ring 16 and the planetary gears 15 allows the multiple stirring rods 208 to break up the fertilizer granules inside the machine body 1 during the rotation of the rotating base 3, preventing the fertilizer granules from clumping. The machine body 1 is made of heat-insulating material. The auger 205 contacts the breathable net 202 located inside the machine body 1. The heat-insulating material of the machine body 1 can reduce the loss of internal temperature. The contact between the auger 205 and the breathable net 202 can clean the breathable net 202 during the conveying of fertilizer granules, preventing fertilizer granules from adhering to the breathable net 202.

[0042] In this embodiment, a drying device for high-tower granular fertilizer is provided. The batch conveying function of the auger 205 enables the fertilizer granules to come into uniform contact with the hot airflow sprayed from the nozzle 206, avoiding overheating or underheating of some granules. At the same time, the heat emitted by the heating element 203 is fully mixed with the granules on the auger 205 through the breathable mesh 202, ensuring that the granules are heated evenly, thereby improving the overall drying efficiency.

[0043] The design of multiple stirring rods 208 effectively disperses fertilizer granules, preventing them from clumping due to uneven heating or excessive humidity within the machine body 1. This not only ensures the loose state of the granules but also guarantees the uniform quality of the dried fertilizer granules. The stirring action of the stirring rods 208 also transports the fertilizer granules to the bottom of the frame 201, enabling a circulating drying operation. Through batch circulating drying, the residual moisture in the granules can be further reduced, improving the drying effect. Due to the synergistic effect of the auger 205 and the stirring rods 208, the fertilizer granules can be dried in a shorter time, reducing the waste of heat energy. At the same time, the circulating drying design also reduces energy consumption, meeting the requirements of energy conservation and environmental protection.

[0044] The working principle of the above embodiment is as follows: First, fertilizer granules are fed into the machine body 1 through the feed pipe 10. The fertilizer granules can enter the bottom of the machine body 1 through the screw conveyor 207. The two vibration modules 14 can transmit vibration to the inside of the machine body 1, so that the fertilizer granules can be stably conveyed on the screw conveyor 207. Then, the servo motor 4 drives the rotating drum 204 to rotate, so that the rotating drum 204 drives the rotating base 3 to rotate. During the rotation of the rotating base 3, it can drive multiple stirring rods 208 to revolve. During the revolve, the multiple stirring rods 208 can rotate during the swinging process through the cooperation of the planetary gear 15 and the gear ring 16, and break up the fertilizer granules that have entered the machine body 1, so as to prevent the fertilizer granules from clumping in the machine body 1. The broken fertilizer granules can be located at the bottom of the frame 201. During the rotation of the rotating drum 204, it can drive the auger 205 to convey the fertilizer granules, so that the fertilizer granules can be conveyed into the inside of the frame 201. At this time, the hot air blower 7 can... Hot air is delivered into the air inlet pipe 6 and enters the rotating drum 204, where it is ejected from multiple nozzles 206, ensuring that the fertilizer granules come into uniform contact with the hot air. At this time, the heating element 203 releases heat into the machine body 1, and this heat passes through the ventilation mesh 202 into the interior of the frame 201, ensuring that the fertilizer granules are heated evenly. Subsequently, the fertilizer granules are conveyed above the frame 201 and onto the screw conveyor 207, and the heat from the heating element 203 passes through the ventilation mesh 202 into the screw conveyor. On the conveyor 207, the fertilizer granules are kept in a continuously heated state. The batch conveying function of the auger 205 ensures that the fertilizer granules are evenly in contact with the hot airflow sprayed from the nozzle 206, avoiding overheating or underheating of some granules. At the same time, the heat emitted by the heating element 203 is fully mixed with the granules on the auger 205 through the breathable mesh 202, ensuring that the granules are heated evenly, thereby improving the overall drying efficiency. In addition, the circulating drying design also reduces energy consumption and meets the requirements of energy conservation and environmental protection.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high tower granular fertilizer drying device, comprising a machine body (1), characterized in that: The inside of the machine body (1) is provided with a drying assembly (2); The drying assembly (2) comprises a frame (201) which is fixedly connected with the inner wall of the machine body (1), a plurality of air permeable nets (202) are mounted on the inner wall of the frame (201), a heating element (203) is fixedly connected with the inner wall of the frame (201), a rotating cylinder (204) is arranged in the machine body (1), a screw conveyor (207) is fixedly connected between the machine body (1) and the frame (201), and a plurality of stirring rods (208) are arranged in the machine body (1).

2. The high tower granular fertilizer drying device according to claim 1, characterized in that: The inner wall of the machine body (1) is rotatably connected with a rotating base (3), the rotating base (3) is fixedly connected with the rotating cylinder (204), the bottom end of the machine body (1) is fixedly connected with a servo motor (4), and the output end of the servo motor (4) is fixedly connected with the bottom end of the rotating cylinder (204).

3. The high tower granular fertilizer drying device according to claim 1, characterized in that: The upper end of the rotating cylinder (204) is rotatably connected with a sealing ring (5) through a sealing bearing, the upper end of the sealing ring (5) is fixedly connected with an air inlet pipe (6), the outer surface of the machine body (1) is mounted with a hot air blower (7), and the other end of the air inlet pipe (6) is fixedly communicated with the output end of the hot air blower (7).

4. The high tower granular fertilizer drying device according to claim 3, characterized in that: The upper end of the machine body (1) is mounted with a sealing cover (8), the air inlet pipe (6) penetrates through the sealing cover (8), and the upper surface of the sealing cover (8) is provided with a plurality of circumferentially distributed steam discharge holes (9).

5. The high tower granular fertilizer drying device according to claim 4, characterized in that: The upper surface of the sealing cover (8) is fixedly communicated with a feeding pipe (10), the outer surface of the feeding pipe (10) is mounted with a valve (11), and the bottom end of the machine body (1) is hingedly connected with a sealing guard plate (12).

6. The high tower granular fertilizer drying device according to claim 1, characterized in that: The bottom end of the machine body (1) is fixedly connected with a support (13), the upper end of the support (13) is mounted with two vibration modules (14), and the two vibration modules (14) are in contact with the outer surface of the machine body (1).

7. The high tower granular fertilizer drying device according to claim 1, characterized in that: Each of the stirring rods (208) is rotatably connected with the rotating base (3), the bottom end of each of the stirring rods (208) is fixedly connected with a planetary gear (15), the inner wall of the machine body (1) is fixedly connected with a gear ring (16), and each of the planetary gears (15) is meshingly connected with the gear ring (16).

8. The high tower granular fertilizer drying device according to claim 1, characterized in that: The machine body (1) is made of heat-insulating material, and the screw conveyor (207) is in contact with the air permeable net (202) located on the inner side of the machine body (1).

Citation Information

Patent Citations

  • Rapid drying structure for granular fertilizer

    CN213396292U