Drying device for organic fertilizer production

By pre-crushing and preheating the conveying mechanism, scraping off fertilizer from the inner wall, and controlling the temperature, the problems of uneven fertilizer particles and contamination on the inner wall in existing devices have been solved, achieving uniform heating and efficient drying of organic fertilizer.

CN224230553UActive Publication Date: 2026-05-12NANJING MINGZHU FERTILIZER
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Patent Information

Application Number
CN202521175862.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-09
Publication Date
2026-05-12
Estimated Expiration
2035-06-09

AI Technical Summary

Technical Problem

Existing organic fertilizer drying equipment is not conducive to pre-drying and pre-crushing during stirring, resulting in fertilizer particles of varying sizes, which affects drying efficiency. Furthermore, fertilizer tends to adhere to the inner wall of the mixing tank and is difficult to scrape off, affecting uniform heating.

Method used

A conveying mechanism is used for pre-crushing and preheating, combined with a scraper to remove fertilizer from the inner wall. A temperature sensor is used to control the appropriate drying temperature, and uniform heating is achieved through the alternating rotation of the stirring rod and stirring blades.

Benefits of technology

This method achieves uniform drying of fertilizer, reduces clumping, improves drying efficiency, and reduces contamination on the inner wall, ensuring uniform heating of the fertilizer.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a drying device for organic fertilizer production, and relates to the technical field of organic fertilizer production. A drying device for organic fertilizer production comprises a frame body, a drying barrel is fixed to the frame body, a first motor is fixed to the upper end of the drying barrel, the output end of the first motor extends into the drying barrel to be fixedly provided with a first stirring rod, stirring blades are fixed to the first stirring rod and distributed in an array mode, a fan is arranged on one side of the drying barrel, and heating pipes are fixed to the air outlet end of the fan and distributed in an array mode. A conveying pipe is fixed to one side of the drying barrel, a feeding pipe is fixed to the conveying pipe, a discharging pipe is fixed to the lower end of the drying barrel, electromagnetic valves are arranged in the feeding pipe and the discharging pipe, a second motor is fixed to one end of the conveying pipe, and a conveying mechanism is arranged between the conveying pipe and the fan. Through the conveying mechanism, the fertilizer can be pre-crushed and pre-heated conveniently, caking of the fertilizer is reduced, uniform drying of the fertilizer is facilitated, the situation that the fertilizer is attached to the inner wall of the barrel body is reduced, and uniform heating and drying of the fertilizer are facilitated.
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Description

Technical Field

[0001] This application relates to the field of organic fertilizer production technology, and in particular to a drying device for organic fertilizer production. Background Technology

[0002] Organic fertilizer production is an important component of sustainable development in modern agriculture. Its production process includes raw material fermentation, crushing, mixing, drying, and packaging. The drying process directly affects the fertilizer's moisture content, particle uniformity, and storage stability. Currently, with the increasing demand for organic fertilizers and the gradual expansion of production scale, higher requirements are being placed on the efficiency, energy consumption, and environmental performance of drying equipment.

[0003] Common organic fertilizer drying equipment mainly includes hot air dryers, microwave dryers, and drum dryers. Hot air dryers heat air and send it into the drying chamber, using convection heat transfer to achieve drying.

[0004] Existing drying equipment uses a mixing device in conjunction with a drying device to dry organic fertilizer. The fertilizer is directly placed into the mixing tank and stirred, and a fan drives the heating tube to dry the fertilizer. However, during the drying process, it is not convenient to pre-dry and pre-crush the organic fertilizer, which can easily lead to inconsistent fertilizer particle size and affect the drying efficiency. Furthermore, it is not convenient to scrape off the fertilizer adhering to the inner wall of the mixing tank, which affects the uniform heating and drying of the fertilizer and makes the drying process inconvenient. Utility Model Content

[0005] The purpose of this application is to address the problems of existing drying devices that use a mixing device in conjunction with a drying device to dry organic fertilizers. The fertilizer is directly placed into a mixing tank and stirred, allowing a fan to drive the heating element to dry the fertilizer. However, during the drying process, it is inconvenient to pre-dry and pre-crush the organic fertilizer, which easily leads to inconsistent fertilizer particle size, affecting the drying efficiency. Furthermore, it is difficult to scrape off fertilizer adhering to the inner wall of the mixing tank, affecting uniform heating and drying and hindering fertilizer processing. This application provides a drying device for organic fertilizer production.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] A drying device for organic fertilizer production includes a frame, on which a drying drum is fixed. A motor is fixed to the upper end of the drying drum, and a stirring rod is fixed to the output end of the motor extending into the drying drum. Stirring blades are fixed to the stirring rod and arranged in an array. A fan is provided on one side of the drying drum, and heating tubes are fixed to the air outlet end of the fan and arranged in an array. A conveying pipe is fixed to one side of the drying drum, and a feed pipe is fixed to the conveying pipe. A discharge pipe is fixed to the lower end of the drying drum. Solenoid valves are installed in both the feed pipe and the discharge pipe. A second motor is fixed to one end of the conveying pipe, and a conveying mechanism is provided between the conveying pipe and the fan.

[0008] By adopting the above technical solution and through the conveying mechanism, it is convenient to pre-crush and preheat the fertilizer, reduce fertilizer agglomeration, facilitate uniform drying of the fertilizer, reduce fertilizer adhering to the inner wall of the barrel, and facilitate uniform heating and drying of the fertilizer.

[0009] Furthermore, the conveying mechanism includes a conveying rod fixed to the output end of the second motor, the output end of the second motor extending into the conveying pipe, conveying blades fixed on the conveying rod, the conveying blades being spirally distributed, crushing rods fixed on the conveying rod and arranged in an array, the conveying pipe communicating with the drying barrel, an air outlet pipe fixed on the conveying pipe, and a drying assembly provided between the drying barrel and the fan.

[0010] By adopting the above technical solution, the rotation of the second motor drives the conveyor rod to rotate, and the conveyor rod drives the conveyor blade to rotate, so that the crushing rod rotates to crush the fertilizer, which facilitates the preheating of the fertilizer.

[0011] Furthermore, the drying assembly includes a fixed pipe fixed to one end of the drying tube, a diversion pipe fixed on the fixed pipe and arranged in an array, the end of the conveying pipe away from the fixed pipe extending into the drying barrel, a filter screen fixed inside the diversion pipe, and a scraper provided between the stirring rod and the drying barrel.

[0012] By adopting the above technical solution, hot air enters the fixed pipe and then enters the distribution pipe from the fixed pipe. Multiple distribution pipes facilitate uniform heating of the fertilizer.

[0013] Furthermore, the scraping component includes a scraping frame fixed to the lower end of the stirring rod. The scraping frame is L-shaped, and a scraper is fixed on the scraping frame.

[0014] By adopting the above technical solution, the rotating scraper removes the fertilizer adhering to the inner wall of the drying drum, reducing fertilizer clumping and facilitating uniform drying of the fertilizer.

[0015] Furthermore, a temperature sensor is fixed on the drying drum, and a controller is fixed on the upper end of the drying drum. The controller is electrically connected to the temperature sensor, and the temperature sensor is electrically connected to the heating tube.

[0016] By adopting the above technical solution, the temperature sensor detects the temperature inside the drying drum, and the detected value is fed back to the controller, so that the fertilizer is kept at a suitable drying temperature.

[0017] Furthermore, a gear is fixed to the output end of the motor, and two symmetrical gears are arranged at the upper end of the drying drum. The gears mesh with each other, and a stirring assembly is arranged between the gears and the drying drum.

[0018] By adopting the above technical solution, the rotation of gear two drives the rotation of stirring rod two. Gear one and gear two rotate in opposite directions, which facilitates uniform heating of fertilizer.

[0019] Furthermore, the stirring assembly includes two symmetrical stirring rods rotatably connected to the upper end of the drying drum, and the upper ends of the stirring rods are fixedly connected to gears.

[0020] By adopting the above technical solution, the stirring rod rotates, which drives the stirring blades to rotate and stir the fertilizer, making it easier to heat the fertilizer evenly.

[0021] Furthermore, the stirring blades on the first and second stirring rods are staggered, and the feed pipe is a trumpet-shaped pipe.

[0022] By adopting the above technical solution, the stirring blades of stirring rod one and stirring rod two rotate alternately, which improves the stirring effect on fertilizer and facilitates uniform heating of fertilizer.

[0023] In summary, this application includes at least one of the following beneficial effects:

[0024] 1. During fertilizer drying, motor two is started. The rotation of motor two drives the conveyor rod to rotate, which in turn drives the conveyor blades to rotate, squeezing and conveying the fertilizer entering the conveyor pipe. This causes the crushing rod to rotate and crush the fertilizer. At the same time, the fan blows heated air into the drying drum, allowing the hot air to enter the fixed pipe and then into the distribution pipe. Multiple distribution pipes facilitate uniform heating of the fertilizer. The heated air then enters the conveyor pipe to heat the fertilizer inside. Simultaneously, stirring rod one drives the scraper to rotate, which in turn drives the scraper. The scraper rotates and scrapes off the fertilizer adhering to the inner wall of the drying drum, reducing fertilizer clumping and facilitating uniform drying. The conveying mechanism facilitates pre-crushing and preheating of the fertilizer, reducing fertilizer clumping and ensuring uniform drying. It also reduces fertilizer adhering to the inner wall of the drum, facilitating uniform heating and drying of the fertilizer.

[0025] 2. During fertilizer drying, when motor one rotates, gear one rotates, which drives gear two to rotate. Gear two rotates, which in turn drives stirring rod two to rotate. Gear one and gear two rotate in opposite directions, which facilitates uniform heating of the fertilizer. The stirring blades rotate to stir the fertilizer, which also facilitates uniform heating of the fertilizer. The stirring blades of stirring rod one and stirring rod two rotate alternately, which improves the stirring effect of the fertilizer and facilitates uniform heating of the fertilizer. Attached Figure Description

[0026] Figure 1 This is a first structural schematic diagram of the drying device in this application.

[0027] Figure 2 This is a second structural schematic diagram of the drying device in this application.

[0028] Figure 3 This is a schematic diagram of the internal structure of the drying device in this application.

[0029] Figure 4 It is in this application Figure 3 A magnified schematic diagram of the central part of the structure.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Frame; 2. Drying drum; 3. Conveying pipe; 4. Motor 1; 5. Stirring rod 1; 6. Stirring blade; 7. Feed pipe; 8. Discharge pipe; 9. Fan; 10. Heating tube; 11. Motor 2; 12. Drying tube; 13. Conveying rod; 14. Conveying blade; 15. Crushing rod; 16. Fixing pipe; 17. Diverting pipe; 18. Air outlet pipe; 19. Controller; 20. Temperature sensor; 21. Gear 1; 22. Gear 2; 23. Stirring rod 2; 24. Scraper frame; 25. Scraper. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0033] This application discloses a drying apparatus for organic fertilizer production.

[0034] Reference Figure 1 and Figure 3A drying device for organic fertilizer production includes a frame 1, a drying barrel 2 fixed on the frame 1, a motor 4 fixed at the upper end of the drying barrel 2, a stirring rod 5 fixed at the output end of the motor 4 extending into the drying barrel 2, stirring blades 6 fixed on the stirring rod 5 and arranged in an array, a fan 9 is provided on one side of the drying barrel 2, a heating tube 10 is fixed at the air outlet end of the fan 9 and arranged in an array, a conveying pipe 3 is fixed on one side of the drying barrel 2, a feed pipe 7 is fixed on the conveying pipe 3, a discharge pipe 8 is fixed at the lower end of the drying barrel 2, a solenoid valve is provided in both the feed pipe 7 and the discharge pipe 8, a motor 11 is fixed at one end of the conveying pipe 3, and a conveying mechanism is provided between the conveying pipe 3 and the fan 9.

[0035] During fertilizer drying, the valve of the discharge pipe 8 is closed. Workers use equipment and tools to pour the fertilizer to be dried into the feed pipe 7. After completion, the valve of the feed pipe 7 is closed, and the motor 4 and the blower 9 are started, so that the stirring rod 5 drives the stirring blade 6 to rotate and stir the fertilizer. The blower 9 blows air, and the heating pipe 10 heats the blown air to dry the stirred fertilizer. During drying, the conveying mechanism facilitates the pre-crushing and preheating of the fertilizer, reduces fertilizer agglomeration, facilitates uniform drying of the fertilizer, reduces fertilizer adhesion to the inner wall of the barrel, and facilitates uniform heating and drying of the fertilizer.

[0036] Reference Figures 2-4 The conveying mechanism includes a conveying rod 13 fixed to the output end of motor 11, the output end of motor 11 extending into the conveying pipe 3, conveying blades 14 fixed on the conveying rod 13 in a spiral arrangement, and crushing rods 15 fixed on the conveying rod 13 in an array. The conveying pipe 3 is connected to the drying barrel 2, and an air outlet pipe 18 is fixed on the conveying pipe 3. A drying assembly is provided between the drying barrel 2 and the fan 9. The drying assembly includes a fixed pipe 16 fixed to one end of the drying pipe 12, and diverting pipes 17 fixed on the fixed pipe 16 in an array. The end of the conveying pipe 3 away from the fixed pipe 16 extends into the drying barrel 2, and a filter screen is fixed inside the diverting pipe 17. A scraper is provided between the stirring rod 5 and the drying barrel 2. The scraper includes a scraper frame 24 fixed to the lower end of the stirring rod 5, the scraper frame 24 being L-shaped, and a scraper blade 25 fixed on the scraper frame 24. A temperature sensor 20 is fixed on the drying drum 2, and a controller 19 is fixed on the upper end of the drying drum 2. The controller 19 is electrically connected to the temperature sensor 20, and the temperature sensor 20 is electrically connected to the heating tube 10.

[0037] During fertilizer drying, motor 11 is started, which rotates the conveyor rod 13, which in turn rotates the conveyor blades 14, compressing and conveying the fertilizer entering the conveyor pipe 3. This causes the crushing rod 15 to rotate and crush the fertilizer. Simultaneously, the blower 9 blows heated air into the drying drum 2, allowing the hot air to enter the fixed pipe 16 and then the distribution pipes 17. Multiple distribution pipes 17 facilitate uniform heating of the fertilizer. The heated air then enters the conveyor pipe 3 to heat the fertilizer inside, facilitating drying. At the same time, the stirring rod 5 drives the scraper 24 to rotate, scraping... The frame 24 drives the scraper 25, which rotates to scrape off the fertilizer adhering to the inner wall of the drying drum 2, reducing fertilizer clumping and facilitating uniform drying. During drying, the temperature sensor 20 detects the temperature inside the drying drum 2 and feeds the detected value back to the controller 19. When the temperature is abnormal, the controller 19 controls the heating tube 10 to heat or lower the temperature, ensuring the fertilizer is at a suitable drying temperature. The conveying mechanism facilitates pre-crushing and preheating of the fertilizer, reducing fertilizer clumping and ensuring uniform drying. It also reduces fertilizer adhering to the inner wall of the drum, facilitating uniform heating and drying.

[0038] Reference Figure 3 The motor 4 has a gear 21 fixed to its output end. Two symmetrical gears 22 are installed at the upper end of the drying drum 2. Gear 21 meshes with gear 22. A stirring assembly is installed between gear 21 and the drying drum 2. The stirring assembly includes two symmetrical stirring rods 23 rotatably connected to the upper end of the drying drum 2. The upper ends of stirring rods 23 are fixedly connected to gear 22. The stirring blades 6 on stirring rods 5 and 23 are staggered. The feed pipe 7 is a bell-shaped tube.

[0039] During fertilizer drying, when motor 4 rotates, gear 21 rotates, driving gear 22 to rotate. Gear 22 rotates, driving stirring rod 23 to rotate. Gear 21 and gear 22 rotate in opposite directions, facilitating uniform heating of the fertilizer. This drives stirring blade 6 to rotate, stirring the fertilizer and facilitating uniform heating. The stirring blades 6 of stirring rod 5 and stirring rod 23 rotate alternately, improving the stirring effect of the fertilizer and facilitating uniform heating.

[0040] The implementation principle of the drying device for organic fertilizer production in this embodiment is as follows: When drying fertilizer, the valve of the discharge pipe 8 is closed, and the workers pour the fertilizer to be dried into the feed pipe 7 using equipment and tools. After completion, the valve of the feed pipe 7 is closed, and the motor 4 and the fan 9 are started, so that the stirring rod 5 drives the stirring blade 6 to rotate and stir the fertilizer. The fan 9 blows air, and the heating pipe 10 heats the blown air to dry the stirred fertilizer.

[0041] During fertilizer drying, motor 11 is started, which drives conveyor rod 13 to rotate. Conveyor rod 13 drives conveyor blade 14 to rotate, squeezing and conveying the fertilizer entering conveyor pipe 3. This causes crushing rod 15 to rotate and crush the fertilizer. At the same time, fan 9 blows heated air into drying drum 2, allowing the hot air to enter fixed pipe 16 and then into distribution pipe 17. Multiple distribution pipes 17 facilitate uniform heating of the fertilizer. The heated air then enters conveyor pipe 3 to heat the fertilizer inside, facilitating drying. Meanwhile, stirring rod 5 drives scraper 24 to rotate, which in turn drives scraper 25. Scraper 25 rotates to scrape off fertilizer adhering to the inner wall of drying drum 2, reducing fertilizer clumping and facilitating uniform drying. During drying, temperature sensor 20 detects the temperature inside drying drum 2 and feeds the detected value back to controller 19. When the temperature is abnormal, controller 19 controls heating tube 10 to heat or lower the temperature, ensuring the fertilizer is at a suitable drying temperature.

[0042] During fertilizer drying, when motor 4 rotates, gear 21 rotates, driving gear 22 to rotate. Gear 22 rotates, driving stirring rod 23 to rotate. Gear 21 and gear 22 rotate in opposite directions, facilitating uniform heating of the fertilizer. This drives stirring blade 6 to rotate, stirring the fertilizer and ensuring uniform heating. The stirring blades 6 of stirring rod 5 and stirring rod 23 rotate alternately, improving the stirring effect on the fertilizer.

Claims

1. A drying device for organic fertilizer production, comprising a frame (1), characterized in that: A drying barrel (2) is fixed on the frame (1). A motor (4) is fixed at the upper end of the drying barrel (2). A stirring rod (5) is fixed at the output end of the motor (4) into the drying barrel (2). A stirring blade (6) is fixed on the stirring rod (5) and arranged in an array. A fan (9) is provided on one side of the drying barrel (2). A heating tube (10) is fixed at the air outlet end of the fan (9) and arranged in a row. A conveying pipe (3) is fixed on one side of the drying barrel (2). A feed pipe (7) is fixed on the conveying pipe (3). A discharge pipe (8) is fixed at the lower end of the drying barrel (2). Solenoid valves are provided in both the feed pipe (7) and the discharge pipe (8). A motor (11) is fixed at one end of the conveying pipe (3). A conveying mechanism is provided between the conveying pipe (3) and the fan (9).

2. The drying device for organic fertilizer production according to claim 1, characterized in that: The conveying mechanism includes a conveying rod (13) fixed to the output end of motor two (11), the output end of motor two (11) extends into the conveying pipe (3), a conveying blade (14) is fixed on the conveying rod (13), the conveying blade (14) is spirally distributed, a crushing rod (15) is fixed on the conveying rod (13) and arranged in an array, the conveying pipe (3) is connected to the drying barrel (2), an air outlet pipe (18) is fixed on the conveying pipe (3), and a drying assembly is provided between the drying barrel (2) and the fan (9).

3. The drying device for organic fertilizer production according to claim 2, characterized in that: The drying assembly includes a fixed pipe (16) fixed at one end of the drying tube (12), a diversion pipe (17) fixed on the fixed pipe (16) and arranged in an array, the end of the conveying pipe (3) away from the fixed pipe (16) extends into the drying barrel (2), a filter screen is fixed inside the diversion pipe (17), and a scraper is provided between the stirring rod (5) and the drying barrel (2).

4. The drying device for organic fertilizer production according to claim 3, characterized in that: The scraping component includes a scraping frame (24) fixed to the lower end of the stirring rod (5). The scraping frame (24) is L-shaped and a scraper (25) is fixed on the scraping frame (24).

5. A drying device for organic fertilizer production according to claim 1, characterized in that: A temperature sensor (20) is fixed on the drying drum (2), and a controller (19) is fixed on the upper end of the drying drum (2). The controller (19) is electrically connected to the temperature sensor (20), and the temperature sensor (20) is electrically connected to the heating tube (10).

6. The drying device for organic fertilizer production according to claim 1, characterized in that: The output end of the motor (4) is fixed with a gear (21), and two symmetrical gears (22) are provided at the upper end of the drying drum (2). The gears (21) and (22) mesh with each other, and a stirring assembly is provided between the gears (21) and the drying drum (2).

7. A drying device for organic fertilizer production according to claim 6, characterized in that: The stirring assembly includes two symmetrical stirring rods (23) rotatably connected to the upper end of the drying barrel (2), and the upper end of the stirring rods (23) is fixedly connected to the gear (22).

8. A drying device for organic fertilizer production according to claim 7, characterized in that: The stirring blades (6) on the first stirring rod (5) and the second stirring rod (23) are staggered, and the feed pipe (7) is a trumpet pipe.