Fertilizer rapid drying hot air circulation device

By designing a fertilizer rapid drying hot air circulation device with separate and cleaning components, the problems of uneven fertilizer drying and reduced thermal conductivity of the inner wall were solved, achieving uniform drying and efficient energy-saving fertilizer drying effects.

CN121089418APending Publication Date: 2025-12-09XINGGUO LAOGENGU AGRICULTURAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511201027.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-26
Publication Date
2025-12-09

AI Technical Summary

Technical Problem

In existing fertilizer drying equipment, fertilizer particles are dried unevenly and the thermal conductivity of the inner wall of the equipment is reduced, resulting in energy waste and loss of effective fertilizer components.

Method used

A fertilizer rapid drying hot air circulation device was designed, which includes a separation component and a cleaning component. The separation component separates the particles according to size and automatically adjusts the heating temperature, while the cleaning component cleans the adhering material on the inner wall by tapping and scraping, ensuring uniform drying and good heat conduction performance.

Benefits of technology

This method achieves uniform drying of fertilizer granules, improves drying efficiency, avoids energy waste, and maintains the thermal conductivity of the inner wall of the device, ensuring the integrity of the effective components of the fertilizer.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of fertilizer drying, and discloses a fertilizer rapid drying hot air circulation device which comprises a bottom plate, a vertical plate and a separation box, in the fertilizer rapid drying hot air circulation device, a storage barrel heats, stirs and pretreats fertilizer, and then the fertilizer is input into the separation box; the pressing plate scrapes particles accumulated on the conical rod, and the conical rod drives the fertilizer to move; the fertilizer automatically falls into the corresponding storage barrels according to the particle size, and the storage barrels automatically adjust the heating temperature according to the particle size; an infrared moisture sensor and a temperature sensor on a stirring rod monitor the moisture content and the temperature, classified drying is achieved, a knocking plate vibrates, a spiral stirring plate vibrates, and adherent objects on the inner wall of a storage barrel are separated; a scraping plate in the storage barrel is attached to the inner wall under the elastic force of a spring sleeving a sliding rod and rotates along with a stirring plate for scraping; after drying is completed, a push rod moves to enable an arc-shaped cover plate to move upwards, a cleaning sponge on the cover plate is close to the inner wall of the drying cylinder for cleaning, meanwhile, a centrifugal fan in a heat conduction pipe guides hot air of the drying cylinder into a storage cylinder and a storage cylinder, and heat circulation is achieved through pretreatment heating.
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Description

Technical Field

[0001] This invention relates to the field of fertilizer drying technology, specifically to a hot air circulation device for rapid fertilizer drying. Background Technology

[0002] Fertilizers are substances that provide one or more essential nutrients for plants, improve soil properties, and enhance soil fertility. They are one of the material foundations of agricultural production. They mainly include ammonium phosphate fertilizers, water-soluble fertilizers containing macronutrients, fertilizers containing micronutrients, bio-fertilizers, and organic fertilizers. Based on their nutrient supply characteristics, they are divided into direct fertilizers and indirect fertilizers; based on their composition, they are divided into nitrogen fertilizers, potassium fertilizers, micronutrient fertilizers, and rare earth element fertilizers. However, fertilizer granules typically contain high moisture content during production. If stored or transported directly, they are prone to clumping, mold growth, and even reduced fertilizer efficiency.

[0003] Most existing fertilizer drying devices directly pour fertilizer granules into the drying unit. However, the fertilizer granules are of uneven size, and small granules may be over-dried due to rapid water loss, while large granules are not completely dried. If high-temperature air or long-term drying is used to accelerate the drying of large fertilizer granules, it will cause the decomposition and loss of volatile nutrients such as nitrogen, reducing the effective components of the fertilizer. In addition, during the drying process, the damp fertilizer granules will stick to the inner wall of the device. If they are not cleaned for a long time, the thermal conductivity of the inner wall of the device will decrease, resulting in a decrease in the drying efficiency of fertilizer granules and a waste of energy. Summary of the Invention

[0004] (I) Technical problem to be solved: In view of the shortcomings of the existing technology, the present invention provides a fertilizer rapid drying hot air circulation device, which solves the problems of uneven drying of fertilizer particles and reduced thermal conductivity of the inner wall of the device.

[0005] (II) Technical Solution: To achieve the above objectives, the present invention is implemented through the following technical solution: A fertilizer rapid drying hot air circulation device, comprising a base plate, a vertical plate, and a separation box: The separation assembly includes two conical rods symmetrically rotatably connected inside a separation box. Two baffles are symmetrically installed inside the separation box. A rotating shaft is rotatably connected between the two baffles. A pressure plate is fixedly connected to the outer wall of the rotating shaft, and the pressure plate is located between the two baffles. Coil springs are fixedly connected to both ends of the rotating shaft. Two separation hoppers are fixedly connected to one end of the separation box near the bottom plate, and a storage cylinder is fixedly connected to the other end of the separation hoppers away from the separation box. The cleaning assembly includes a drying cylinder fixedly connected to a base plate. A shaft is rotatably connected inside the drying cylinder, and a push rod is slidably connected inside the shaft. Multiple mounting slots are evenly provided on the shaft, and push plates are slidably connected inside the mounting slots. Each push plate is fixedly connected to the push rod. A hinge plate is rotatably connected inside the mounting slot. A rotating plate is rotatably connected to one end of the push plate near the hinge plate, and the other end of the rotating plate is rotatably connected to the hinge plate. An arc-shaped cover plate is rotatably connected to one end of the hinge plate near the push plate.

[0006] Preferably, a storage cylinder is fixedly connected to one end of the upright plate near the separation box, two pulleys are symmetrically rotatably connected to one end of the separation box near the storage cylinder, and the pulleys are fixedly connected to the tapered rod. A clamping plate is fixedly connected to one end of the separation box near the pulleys, and a striking plate is slidably connected inside the clamping plate.

[0007] Preferably, a pull plate is fixedly connected to one end of the pulley away from the separation box, and a horizontal plate is fixedly connected to one end of the striking plate near the pull plate, and the horizontal plate is adapted to the pull plate. A lifting groove is provided on the plate, and a lifting plate is slidably connected in the lifting groove. Compression springs are fixedly connected to both ends of the lifting plate, and the lifting plate is fixedly connected to the striking plate.

[0008] Preferably, a rotating rod is rotatably connected inside the storage cylinder, a spiral stirring plate is fixedly connected to the outer wall of the rotating rod, a feeding port is opened on the storage cylinder, and the storage cylinder is fixedly connected to the separation box.

[0009] Preferably, a stirring rod is rotatably connected inside the storage cylinder, and two stirring plates are symmetrically fixedly connected to the outer wall of the stirring rod, with the two stirring plates located inside the storage cylinder. An mounting plate is fixedly connected to the outer wall of the stirring plate, and a sliding rod is slidably connected to the mounting plate. A scraper is fixedly connected to the end of the sliding rod away from the mounting plate.

[0010] Preferably, a striking rod is fixedly connected to the outer wall of the stirring rod, and a discharge pipe is fixedly connected to one end of the storage cylinder near the bottom plate, with a valve plate rotatably connected inside the discharge pipe.

[0011] Preferably, the drying cylinder has an installation hole, a feed hopper is fixedly connected to the installation hole, a spiral push plate is fixedly connected to the outer wall of the shaft, a connecting plate is fixedly connected to the end of the push rod away from the drying cylinder, a plurality of chucks are evenly fixedly connected to the end of the connecting plate near the vertical plate, and a chuck is fixedly connected to the end of the shaft near the connecting plate.

[0012] Preferably, the drying cylinder has a discharge port, and a discharge square tube is fixedly connected to one end of the discharge port near the bottom plate. Two sliding grooves are symmetrically opened on the discharge square tube, and sliding seats are slidably connected in the sliding grooves. A sealing plate is fixedly connected to one end of the two sliding seats away from the drying cylinder.

[0013] Preferably, the sealing plate has a slot, a pull rod is slidably connected in the slot, and a locking block is fixedly connected to one end of the pull rod near the discharge square tube, and the locking block is adapted to the discharge square tube.

[0014] Preferably, a heat-conducting pipe and a gas-conducting pipe are fixedly connected inside the drying cylinder, and the storage cylinder and the storage container are all connected to the drying cylinder through heat-conducting pipes. A purification box is fixedly connected to the upper surface of the bottom plate, and the purification box is connected to the drying cylinder through a gas-conducting pipe.

[0015] In summary, the technical effects and advantages of this invention are as follows: 1. In this invention, the problem of uneven drying of fertilizer granules in existing devices is solved by setting up a separation component. The storage cylinder heats and stirs the pre-treated fertilizer, which is then fed into the separation box. The pressure plate automatically scrapes the granules accumulated on the conical rod, and the rotation of the conical rod drives the fertilizer to move. At the same time, the striking plate strikes the storage cylinder to prevent blockage. The fertilizer automatically falls into the corresponding storage cylinder according to the particle size, and the storage cylinder automatically adjusts the heating temperature according to the particle size. The infrared moisture sensor and temperature sensor on the stirring rod monitor the moisture content and temperature. When the standard is reached, the valve plate opens to realize classified drying, which not only avoids uneven drying, but also improves the drying efficiency through pre-treatment.

[0016] 2. In this invention, the cleaning components solve the problem of reduced thermal conductivity of the inner wall of existing devices. When the storage cylinder is in use, the vibration of the striking plate and the spiral stirring plate work together to remove the adhering material from the inner wall. The scraper in the storage cylinder adheres to the inner wall under the elastic force of the spring sleeved on the sliding rod and scrapes off the adhering material as the stirring plate rotates. After the fertilizer in the drying cylinder is dried, the push rod moves to move the arc-shaped cover plate upward. The cleaning sponge on the cover plate is close to the inner wall of the drying cylinder to clean it, avoiding residue from affecting the heat conduction. At the same time, the centrifugal fan in the heat conduction pipe introduces the hot air from the drying cylinder into the storage cylinder and the storage cylinder. Pre-treatment heating realizes heat circulation and saves energy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a fertilizer rapid drying hot air circulation device according to the present invention; Figure 2 This is a schematic diagram of the structure of the vertical plate of a fertilizer rapid drying hot air circulation device according to the present invention; Figure 3 This is a cross-sectional view of the storage cylinder of a fertilizer rapid drying hot air circulation device according to the present invention; Figure 4This is a cross-sectional view of the separation box of a fertilizer rapid drying hot air circulation device according to the present invention; Figure 5 This is a cross-sectional view of the storage cylinder of a fertilizer rapid drying hot air circulation device according to the present invention; Figure 6 This is a cross-sectional view of the drying cylinder of a fertilizer rapid drying hot air circulation device according to the present invention; Figure 7 This is a cross-sectional view of the shaft of a fertilizer rapid drying hot air circulation device according to the present invention; Figure 8 This is a cross-sectional view of the sealing plate of a fertilizer rapid drying hot air circulation device according to the present invention.

[0018] In the diagram: 1. Base plate; 2. Discharge square tube; 3. Drying cylinder; 4. Connecting plate; 5. Chuck; 6. Feed hopper; 7. Heat conduction pipe; 8. Vertical plate; 9. Storage cylinder; 10. Separation box; 11. Slide seat; 12. Feed port; 13. Storage cylinder; 14. Rotating rod; 15. Spiral agitator plate; 16. Separation hopper; 17. Stirring rod; 18. Clamping plate; 19. Pulley; 20. Pulling plate; 21. Striking plate; 22. Horizontal plate; 23. Lifting groove; 24. Lifting plate; 25. Compression spring; 26. Rotating shaft; 27. Pressure plate; 28. Coil spring 29. Baffle; 30. Conical rod; 31. Mounting hole; 32. Shaft; 33. Spiral pusher plate; 34. Discharge port; 35. Purification box; 36. Air guide pipe; 37. Claw; 38. Slide groove; 39. Discharge pipe; 40. Striking rod; 41. Mixing plate; 42. Scraper; 43. Valve plate; 44. Mounting plate; 45. Slide rod; 46. Mounting groove; 47. Push rod; 48. Push plate; 49. Hinge plate; 50. Rotating plate; 51. Arc-shaped cover plate; 52. Sealing plate; 53. Slot; 54. Block; 55. Pull rod. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] refer to Figures 1-8The fertilizer rapid drying hot air circulation device shown includes a base plate 1, a vertical plate 8, and a separation box 10. The separation assembly includes two conical rods 30 symmetrically rotatably connected within the separation box 10. Two baffles 29 are symmetrically installed within the separation box 10, and a rotating shaft 26 is rotatably connected between the two baffles 29. A pressure plate 27 is fixedly connected to the outer wall of the rotating shaft 26, and the pressure plate 27 is located between the two baffles 29. Coil springs 28 are fixedly connected to both ends of the rotating shaft 26. Two separation hoppers 16 are fixedly connected to one end of the separation box 10 near the base plate 1, and a storage cylinder 13 is fixedly connected to the other end of the separation hoppers 16 away from the separation box 10. A storage cylinder 9 is fixedly connected to one end of the vertical plate 8 near the separation box 10. Two pulleys 19 are symmetrically rotatably connected to one end of the separation box 10 near the storage cylinder 9, and the pulleys 19 are fixedly connected to the conical rods 30. A clamping plate 18 is fixedly connected to one end of the separation box 10 near the pulleys 19, and a sliding connection is provided within the clamping plate 18. A striking plate 21 is provided. One of the pulleys 19 is fixedly connected to a pull plate 20 at the end away from the separation box 10. A horizontal plate 22 is fixedly connected to the end of the striking plate 21 near the pull plate 20, and the horizontal plate 22 is adapted to the pull plate 20. A lifting groove 23 is provided on the clamping plate 18. A lifting plate 24 is slidably connected in the lifting groove 23. Compression springs 25 are fixedly connected to both ends of the lifting plate 24, and the lifting plate 24 is fixedly connected to the striking plate 21. A discharge port 34 is provided on the drying cylinder 3. The discharge port 34 is fixedly connected to a discharge square tube 2 at one end near the bottom plate 1. Two sliding grooves 38 are symmetrically opened on the discharge square tube 2. Sliding seats 11 are slidably connected in the sliding grooves 38. The two sliding seats 11 are fixedly connected to a sealing plate 52 at the ends away from the drying cylinder 3. A slot 53 is opened on the sealing plate 52. A pull rod 55 is slidably connected in the slot 53. A locking block 54 is fixedly connected to the end of the pull rod 55 near the discharge square tube 2, and the locking block 54 is adapted to the discharge square tube 2.

[0021] To improve the uniformity of fertilizer granule drying, this invention incorporates a separation component. The fertilizer is pre-treated by heating and stirring in the storage cylinder 9, and then fed into the separation box 10. The pressure plate 27 automatically scrapes down the granules accumulated on the conical rod 30. The rotation of the conical rod 30 moves the fertilizer, while the striking plate 21 strikes the storage cylinder 9 to prevent blockage. The fertilizer automatically falls into the corresponding storage cylinder 13 according to granule size, and the storage cylinder 13 automatically adjusts the heating temperature based on granule size. Infrared moisture sensors and temperature sensors on the stirring rod 17 monitor the moisture content and temperature. When the moisture content and temperature reach the target, the valve plate 43 opens, achieving classified drying. This avoids uneven drying and improves drying efficiency through pre-treatment.

[0022] Specifically, firstly, the motor mounted on the vertical plate 8 drives the bearing rod to rotate, which in turn drives multiple pulleys 19 to rotate synchronously. The pulleys 19 and belts work together to drive the rotating rod 14 inside the storage cylinder 9 and the stirring rod 17 inside the storage cylinder 13 to rotate together. It is worth noting that the motor and bearing rod are existing components and will not be described in detail here. Fertilizer granules are poured into the storage cylinder 9 through the feeding port 12, and then the feeding port 12 of the storage cylinder 9 is closed. Heating wires are fixedly installed inside the storage cylinder 9, storage cylinder 13, and drying cylinder 3. The heating wires in the storage cylinder 9 heat the material, while the spiral stirring plate on the rotating rod 14 simultaneously heats the material. 15. The fertilizer granules are pre-treated and gradually fall into the separation box 10 through the discharge port on the storage cylinder 9. It is worth noting that the discharge port of the storage cylinder 9 is located between two baffles 29, and the baffles 29 are in contact with the arc-shaped end of the conical rod 30 to prevent the fertilizer granules from flowing out from the gap between them. At the same time, the pressure plate 27 scrapes the fertilizer granules flowing between the two baffles 29 to prevent the granules from overlapping and causing inaccurate falling of the granules. Meanwhile, the pulley 19 rotates, which drives the pull plate 20 to rotate. The protrusion of the pull plate 20 near the horizontal plate 22 is adapted to the groove on the horizontal plate 22. When the horizontal plate 22 is not in contact with the pull plate 20, the lifting plate 24 is in the lifting position. At the middle position of groove 23, the horizontal plate 22 is on the rotation path of the pull plate 20, and the length of the horizontal plate 22 is less than the length of the pull plate 20. The pull plate 20 moves along the groove of the horizontal plate 22, causing the striking plate 21 to move downward. When the pull plate 20 disengages from the horizontal plate 22, the striking plate 21 moves upward under the rebound force of the compression spring 25 to strike the storage cylinder 9, preventing the discharge port of the storage cylinder 9 from being blocked. Fertilizer particles of different diameters fall into the storage cylinder 13 below through the separation hopper 16. The heating wire inside the storage cylinder 13 heats the fertilizer particles inside, and the two stirring plates 41 symmetrically installed on the outer wall of the stirring rod 17 stir and heat the particles inside. Infrared moisture and temperature sensors monitor moisture content and temperature. When the fertilizer granule monitoring results meet the standards, the controller energizes the motor on one side of valve plate 43, causing valve plate 43 to open. The stirring rod 17 rotates, driving the striking rod 40 to rotate. The striking ball installed at the end of the striking rod 40 away from the stirring rod 17 strikes the separation hopper 16. At the same time, a feeding plate is installed at the discharge port of separation hopper 16. When the weight sensor in storage cylinder 13 detects that the fertilizer granules in storage cylinder 13 have reached the maximum value, the controller closes the feeding plate of separation hopper 16 to stop feeding. After the fertilizer granules in storage cylinder 13 are discharged and valve plate 43 is closed, separation hopper 16 continues to discharge.

[0023] Secondly, the pretreated fertilizer granules are fed into the drying cylinder 3 through the feed hopper 6. The spiral pusher plate 33 pushes the fertilizer granules towards the discharge port 34. The heating wire inside the drying cylinder 3 heats the fertilizer granules, and the spiral pusher plate 33 agitates them, allowing the fertilizer granules to dry more quickly. The moisture content of the fertilizer granules is monitored by an infrared moisture sensor inside the drying cylinder 3. At the same time, a gas monitor inside the drying cylinder 3 monitors for harmful gases. Meanwhile, the gas guide pipe 36 on the purification box 35 adsorbs the gas inside the drying cylinder 3 to prevent air pollution. Modified zeolite is used to adsorb ammonia in the gas. When the adsorption is saturated, it is decomposed by low-pressure steam. Ammonia water is recovered to achieve zero nitrogen emissions and avoid ammonia corrosion of equipment. After the fertilizer drying is completed and the monitoring value is at a safe level, the pull rod 55 is pulled down to move the locking block 54 down along the locking groove 53, releasing the locking block 54 from the discharge square pipe 2. At this time, the sealing plate 52 moves along the sliding groove 38 opened on the discharge square pipe 2 to collect the dried fertilizer granules. It is worth noting that the above-mentioned storage cylinder 9 and storage cylinder 13 are both equipped with pressure relief check valves. This component is an existing device and is not shown in the figure. When the pressure in the device is too high, the pressure relief check valve will automatically open and automatically close after the pressure is released to prevent the loss of heat in the above-mentioned device.

[0024] refer to Figures 1-8The cleaning assembly includes a drying cylinder 3 fixedly connected to a base plate 1. A shaft 32 is rotatably connected inside the drying cylinder 3. A push rod 47 is slidably connected inside the shaft 32. Multiple mounting slots 46 are evenly distributed on the shaft 32. Push plates 48 are slidably connected within the mounting slots 46, and all push plates 48 are fixedly connected to the push rod 47. A hinge plate 49 is rotatably connected within the mounting slots 46. A rotating plate 50 is rotatably connected to one end of the push plate 48 near the hinge plate 49, and the other end of the rotating plate 50 is connected to the hinge plate 49. Plate 49 is rotatably connected, and an arc-shaped cover plate 51 is rotatably connected to one end of the hinge plate 49 near the push plate 48. A rotating rod 14 is rotatably connected inside the storage cylinder 9, and a spiral stirring plate 15 is fixedly connected to the outer wall of the rotating rod 14. A feeding port 12 is opened on the storage cylinder 9, and the storage cylinder 9 is fixedly connected to the separation box 10. A stirring rod 17 is rotatably connected inside the storage cylinder 13, and two stirring plates 41 are symmetrically fixedly connected to the outer wall of the stirring rod 17. The two stirring plates 41 are located inside the storage cylinder 13. A mounting plate 44 is fixedly connected to the outer wall of the drying cylinder 17. A sliding rod 45 is slidably connected to the mounting plate 44. A scraper 42 is fixedly connected to the end of the sliding rod 45 away from the mounting plate 44. A striking rod 40 is fixedly connected to the outer wall of the stirring rod 17. A discharge pipe 39 is fixedly connected to the end of the storage cylinder 13 near the bottom plate 1. A valve plate 43 is rotatably connected inside the discharge pipe 39. A mounting hole 31 is opened on the drying cylinder 3. A feed hopper 6 is fixedly connected inside the mounting hole 31. A spiral pusher plate 3 is fixedly connected to the outer wall of the shaft 32. 3. A connecting plate 4 is fixedly connected to the end of the push rod 47 away from the drying cylinder 3. Multiple claws 37 are evenly fixedly connected to the end of the connecting plate 4 near the vertical plate 8. A chuck 5 is fixedly connected to the end of the shaft 32 near the connecting plate 4. A heat-conducting pipe 7 and an air-conducting pipe 36 are fixedly connected inside the drying cylinder 3. The storage cylinder 9 and the storage cylinder 13 are connected to the drying cylinder 3 through the heat-conducting pipe 7. A purification box 35 is fixedly connected to the upper surface of the bottom plate 1. The purification box 35 is connected to the drying cylinder 3 through the air-conducting pipe 36.

[0025] To maintain the drying efficiency of the device, this invention includes a cleaning component. When the storage cylinder 9 is in use, the vibration of the striking plate 21, in conjunction with the spiral stirring plate 15, causes the adhering material on the inner wall to detach. Inside the storage cylinder 13, the scraper 42, under the elastic force of the spring sleeved on the sliding rod 45, adheres to the inner wall and scrapes away the adhering material as the stirring plate 41 rotates. After the fertilizer in the drying cylinder 3 is dried, the push rod 47 moves to move the arc-shaped cover plate 51 upward, and the cleaning sponge on the cover plate comes into close contact with the inner wall of the drying cylinder 3 to clean it, preventing residue from affecting heat conduction. At the same time, the centrifugal fan in the heat conduction pipe 7 introduces the hot air from the drying cylinder 3 into the storage cylinder 9 and the storage cylinder 13, achieving heat circulation through pretreatment heating and saving energy.

[0026] Specifically, when the storage cylinder 9 is in use, the pull plate 20 moves along the groove of the horizontal plate 22, causing the striking plate 21 to move downwards. When the pull plate 20 disengages from the horizontal plate 22, the striking plate 21 moves upwards under the rebound force of the compression spring 25 to strike the storage cylinder 9. The vibration of the cylinder wall by the striking plate 21 and the stirring plate 15 stir the fertilizer particles inside. Through the cooperation of the two, the adhering substances on the inner wall can be removed. The scraper 42 inside the storage cylinder 13 adheres to the inner wall under the elastic force of the spring sleeved on the slide rod 45. As the stirring plate 41 rotates, it scrapes off the adhering substances on the inner wall of the storage cylinder 13. The rotation of the stirring rod 17 drives the striking rod 40 to rotate. The striking ball installed at the end of the striking rod 40 away from the stirring rod 17 strikes the separation hopper 16, causing the residue in the separation hopper 16 to fall into the storage cylinder 13, preventing the separation hopper 16 from being blocked by adhering substances. After the fertilizer in the drying cylinder 3 is dried, the push rod... The movement of 47 causes the push plate 48 to push the rotating plate 50 and the hinge plate 49 to rotate, causing the arc-shaped cover plate 51 to move upward. The cleaning sponge (high-temperature resistant silicone sponge) on the arc-shaped cover plate 51 moves upward along the curved end of the spiral push plate 33 and adheres to its inner wall. As the shaft 32 rotates, it cleans the inner wall of the drying cylinder 3. At the same time, the adhering material that falls into the mounting groove 46 after being cleaned will automatically detach from the mounting groove 46 as the shaft 32 rotates, avoiding the accumulation of residue that affects the heat conduction of the inner wall of the above components. Meanwhile, the centrifugal fan in the heat conduction pipe 7 introduces the hot air from the drying cylinder 3 into the storage cylinder 9 and the storage cylinder 13. The heat conduction pipe 7 is equipped with a drying device to dry and absorb the moisture in the hot air. At the same time, the outer wall of the heat conduction pipe 7 is covered with a heat insulation pipe to avoid heat loss during conduction. The filtered hot air is introduced into the storage cylinder 9 and the storage cylinder 13 to pre-treat and heat the fertilizer granules to achieve heat circulation and save energy.

[0027] The working principle of this invention is as follows: A motor mounted on the vertical plate 8 drives the bearing rod to rotate, which in turn drives multiple pulleys 19 to rotate synchronously. The pulleys 19 and belts work together to drive the rotating rod 14 inside the storage cylinder 9 and the stirring rod 17 inside the storage cylinder 13 to rotate together. Fertilizer granules are poured into the storage cylinder 9 through the feeding port 12. Then, the feeding port 12 of the storage cylinder 9 is closed. The spiral stirring plate 15 on the rotating rod 14 pre-treats the fertilizer granules. The fertilizer granules gradually fall into the separation box 1 through the discharge port on the storage cylinder 9. Inside the 0, the pressure plate 27 scrapes the fertilizer particles flowing between the two baffles 29 to level them. The pulley 19 rotates, driving the pull plate 20 to rotate. The pull plate 20 moves along the groove of the horizontal plate 22, causing the striking plate 21 to move down. When the pull plate 20 disengages from the horizontal plate 22, the striking plate 21 moves up under the rebound force of the compression spring 25 to strike the storage cylinder 9, preventing the discharge port of the storage cylinder 9 from being blocked. The striking plate 21 vibrates the cylinder wall of the storage cylinder 9, and the spiral stirring plate 15 stirs the fertilizer particles inside. Through the cooperation of the two, the adhering substances on the inner wall can be removed.Fertilizer granules of different diameters fall into the storage cylinder 13 below through the separation hopper 16. A heating wire inside the storage cylinder 13 heats the granules, and two symmetrically mounted stirring plates 41 on the outer wall of the stirring rod 17 stir and heat the granules. Infrared moisture and temperature sensors on the stirring rod 17 monitor the moisture content and temperature. When the monitoring results of the fertilizer granules meet the standards, the controller energizes the motor on one side of the valve plate 43, opening the valve plate 43. The stirring rod 17 rotates, driving the striking rod 40 to rotate. The striking ball mounted on the end of the striking rod 40 away from the stirring rod 17 strikes the separation hopper 16. The scraper 42 inside the storage cylinder 13 adheres to the spring force of the spring sleeved on the sliding rod 45. The inner wall of the storage cylinder 13 is scraped by the rotating stirring plate 41 to remove the adhering substances. The rotating stirring rod 17 drives the striking rod 40 to rotate. The striking ball installed at the end of the striking rod 40 away from the stirring rod 17 strikes the separation hopper 16, causing the residue in the separation hopper 16 to fall into the storage cylinder 13, preventing the separation hopper 16 from being blocked by adhering substances. At the same time, a feed plate is installed at the discharge port of the separation hopper 16. When the weight sensor in the storage cylinder 13 detects that the fertilizer particles in the storage cylinder 13 have reached the maximum value, it controls the feed plate of the separation hopper 16 to close and stop feeding. After the fertilizer particles in the storage cylinder 13 have been discharged and the valve plate 43 is closed, the separation hopper 16 continues to discharge. The pre-treated fertilizer The fertilizer granules are fed into the drying cylinder 3 through the feed hopper 6. The spiral pusher plate 33 pushes the fertilizer granules towards the discharge port 34. The heating wire inside the drying cylinder 3 heats the fertilizer granules, and the spiral pusher plate 33 agitates them, allowing the fertilizer granules to dry more quickly. An infrared moisture sensor inside the drying cylinder 3 monitors the moisture content of the fertilizer granules. At the same time, a gas monitor inside the drying cylinder 3 monitors for harmful gases. Meanwhile, the gas guide pipe 36 on the purification box 35 adsorbs and treats the gases inside the drying cylinder 3. When the monitored values ​​are at a safe level, the fertilizer drying is completed. Pulling down the pull rod 55 causes the locking block 54 to move down along the locking groove 53, releasing the locking block 54 from the discharge square pipe 2. In the snap-fit ​​state, the sealing plate 52 moves along the groove 38 on the discharge square pipe 2 to collect the dried fertilizer granules. After the fertilizer in the drying cylinder 3 is dried, the push rod 47 moves, causing the push plate 48 to push the rotating plate 50 and the hinge plate 49 to rotate, causing the arc-shaped cover plate 51 to move upward. The cleaning sponge (high-temperature resistant silicone sponge) on the arc-shaped cover plate 51 moves upward along the curved end of the spiral push plate 33 and adheres to its inner wall. As the shaft 32 rotates, it cleans the inner wall of the drying cylinder 3. At the same time, the adhering material that falls into the mounting groove 46 after being cleaned will automatically detach from the mounting groove 46 as the shaft 32 rotates, preventing the accumulation of residue from affecting the heat conduction of the inner wall of the above components.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fertilizer rapid drying hot air circulation device, comprising a base plate (1), a vertical plate (8), and a separation box (10), characterized in that: The separation assembly includes two tapered rods (30) symmetrically rotatably connected inside the separation box (10). Two baffles (29) are symmetrically installed inside the separation box (10). A rotating shaft (26) is rotatably connected between the two baffles (29). A pressure plate (27) is fixedly connected to the outer wall of the rotating shaft (26), and the pressure plate (27) is located between the two baffles (29). Coil springs (28) are fixedly connected to both ends of the rotating shaft (26). Two separation hoppers (16) are fixedly connected to one end of the separation box (10) near the bottom plate (1), and a storage cylinder (13) is fixedly connected to one end of the separation hoppers (16) away from the separation box (10). The cleaning assembly includes a drying cylinder (3) fixedly connected to a base plate (1). A shaft (32) is rotatably connected inside the drying cylinder (3). A push rod (47) is slidably connected inside the shaft (32). Multiple mounting slots (46) are evenly provided on the shaft (32). A push plate (48) is slidably connected inside the mounting slot (46). All of the push plates (48) are fixedly connected to the push rod (47). A hinge plate (49) is rotatably connected inside the mounting slot (46). A rotating plate (50) is rotatably connected to one end of the push plate (48) near the hinge plate (49). The other end of the rotating plate (50) is rotatably connected to the hinge plate (49). An arc-shaped cover plate (51) is rotatably connected to one end of the hinge plate (49) near the push plate (48).

2. The fertilizer rapid drying hot air circulation device according to claim 1, characterized in that: The vertical plate (8) is fixedly connected to a storage cylinder (9) at one end near the separation box (10). Two pulleys (19) are symmetrically rotated at one end of the separation box (10) near the storage cylinder (9), and the pulleys (19) are fixedly connected to the tapered rod (30). A clamping plate (18) is fixedly connected at one end of the separation box (10) near the pulleys (19), and a striking plate (21) is slidably connected inside the clamping plate (18).

3. The fertilizer rapid drying hot air circulation device according to claim 2, characterized in that: One of the pulleys (19) is fixedly connected to a pull plate (20) at the end away from the separation box (10). The striking plate (21) is fixedly connected to a horizontal plate (22) at the end near the pull plate (20), and the horizontal plate (22) is adapted to the pull plate (20). The card plate (18) is provided with a lifting groove (23). A lifting plate (24) is slidably connected in the lifting groove (23). Compression springs (25) are fixedly connected to both ends of the lifting plate (24), and the lifting plate (24) is fixedly connected to the striking plate (21).

4. The fertilizer rapid drying hot air circulation device according to claim 2, characterized in that: A rotating rod (14) is rotatably connected inside the storage cylinder (9). A spiral stirring plate (15) is fixedly connected to the outer wall of the rotating rod (14). A feeding port (12) is opened on the storage cylinder (9), and the storage cylinder (9) is fixedly connected to the separation box (10).

5. The fertilizer rapid drying hot air circulation device according to claim 1, characterized in that: A stirring rod (17) is rotatably connected inside the storage cylinder (13). Two stirring plates (41) are symmetrically fixed to the outer wall of the stirring rod (17), and the two stirring plates (41) are located inside the storage cylinder (13). An installation plate (44) is fixedly connected to the outer wall of the stirring plate (41). A sliding rod (45) is slidably connected to the installation plate (44), and a scraper (42) is fixedly connected to the end of the sliding rod (45) away from the installation plate (44).

6. The fertilizer rapid drying hot air circulation device according to claim 5, characterized in that: A striking rod (40) is fixedly connected to the outer wall of the stirring rod (17), and a discharge pipe (39) is fixedly connected to one end of the storage cylinder (13) near the bottom plate (1). A valve plate (43) is rotatably connected inside the discharge pipe (39).

7. The fertilizer rapid drying hot air circulation device according to claim 1, characterized in that: The drying cylinder (3) has an installation hole (31) and a feed hopper (6) is fixedly connected inside the installation hole (31). A spiral push plate (33) is fixedly connected to the outer wall of the shaft (32). A connecting plate (4) is fixedly connected to the end of the push rod (47) away from the drying cylinder (3). Multiple claws (37) are evenly fixedly connected to the end of the connecting plate (4) near the vertical plate (8). A chuck (5) is fixedly connected to the end of the shaft (32) near the connecting plate (4).

8. The fertilizer rapid drying hot air circulation device according to claim 1, characterized in that: The drying cylinder (3) is provided with a discharge port (34). The discharge port (34) is fixedly connected to a discharge square tube (2) at one end near the bottom plate (1). Two sliding grooves (38) are symmetrically provided on the discharge square tube (2). A sliding seat (11) is slidably connected in the sliding groove (38). A sealing plate (52) is fixedly connected to one end of the two sliding seats (11) away from the drying cylinder (3).

9. A fertilizer rapid drying hot air circulation device according to claim 8, characterized in that: The sealing plate (52) has a slot (53) and a pull rod (55) is slidably connected in the slot (53). A block (54) is fixedly connected to one end of the pull rod (55) near the discharge square tube (2), and the block (54) is adapted to the discharge square tube (2).

10. A fertilizer rapid drying hot air circulation device according to claim 2, characterized in that: The drying cylinder (3) is fixedly connected with a heat-conducting pipe (7) and a gas-conducting pipe (36). The storage cylinder (9) and the storage cylinder (13) are connected to the drying cylinder (3) through the heat-conducting pipe (7). The upper surface of the bottom plate (1) is fixedly connected with a purification box (35). The purification box (35) is connected to the drying cylinder (3) through the gas-conducting pipe (36).

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