Fertilizer drying device for fertilizer production
By combining the lifting and lowering of the stirring blades driven by the telescopic rod with the vibrating screen and the circulation of the spiral blades, the problem of uneven heating during fertilizer drying is solved, achieving uniform drying and efficient production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-03
AI Technical Summary
Existing fertilizer drying equipment suffers from a lack of flexibility in its stirring structure, resulting in uneven heating of the fertilizer, with some areas overheating or under-drying, which affects the stability of product quality.
The system uses a telescopic rod to drive the stirring blades to rise, fall, and rotate. Combined with vibrating screen and spiral blade circulation, it achieves fertilizer position changes and particle grading, ensuring uniform drying.
It improves the uniformity and efficiency of drying, reduces energy waste, and enhances the quality stability and yield of fertilizer.
Smart Images
Figure CN224080611U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fertilizer drying technology, and in particular to a fertilizer drying device for fertilizer production. Background Technology
[0002] With the acceleration of agricultural modernization, the demand for fertilizer yield and quality continues to rise. Fertilizers often contain a lot of moisture after production. If they are not effectively dried, they will not only be difficult to store and easily clump and deteriorate, but also affect their effectiveness in agricultural production. Efficient and precise fertilizer drying equipment has become an important factor in improving fertilizer production efficiency and product quality. Its technological innovation is of vital importance to the development of the entire fertilizer industry.
[0003] Currently, traditional fertilizer drying devices mostly adopt simple static drying methods. For example, some drying devices simply pile fertilizer in a heated space and rely on the natural convection of hot air to remove moisture. The technical principle is to use an external heat source to raise the temperature of the drying space, so that the moisture in the fertilizer will evaporate. Some devices also use a single stirring structure with fixed blade positions, which cannot be flexibly adjusted according to the actual state of the fertilizer during the drying process.
[0004] However, during the drying process, due to the lack of flexibility in the stirring structure, the fertilizer cannot be moved around sufficiently and continuously. This leads to uneven heating of the fertilizer in the mixing tank. Some areas of the fertilizer are exposed to high temperatures for extended periods, resulting in overheating and decomposition of the effective components, thus reducing fertilizer efficiency. Meanwhile, some areas of the fertilizer cannot fully contact the hot air, resulting in insufficient drying and inconsistent moisture content in the final product. This uneven drying problem affects the quality stability of the fertilizer and fails to meet the stringent requirements of modern agriculture for high-quality fertilizers. Therefore, a fertilizer drying device for fertilizer production is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a fertilizer drying device for fertilizer production, which aims to improve the problems of overheating and uneven drying in the existing mixing tank.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A fixed frame is fixedly connected to the top of the mixing tank. A telescopic rod is provided on the side wall of the fixed frame. A mixing component is provided on the outer wall of the telescopic rod. A discharge pipe is provided on the side wall of the mixing tank. A circulation component is provided on one side of the discharge pipe.
[0008] The stirring assembly includes a motor, the outer wall of which is fixedly connected to the top of the stirring tank. The output end of the motor is fixedly connected to the top of the telescopic rod. A fixed column is fixedly connected inside the stirring tank. A sliding groove is formed inside the fixed column. A sphere is fixedly connected to the outer wall of the telescopic rod. The outer wall of the sphere is slidably connected to the inner wall of the sliding groove. A rotating column is fixedly connected inside the telescopic rod. A stirring blade is fixedly connected to the bottom of the rotating column. The outer wall of the stirring blade is rotatably connected to the inside of the stirring tank.
[0009] As a further description of the above technical solution:
[0010] The circulation component includes a second motor, and a second filter screen is fixedly connected to the output end of the second motor.
[0011] As a further description of the above technical solution:
[0012] The outer wall of the second motor is located on one side of the mixing tank, and the top of the second filter screen is provided with a first filter screen.
[0013] As a further description of the above technical solution:
[0014] The two side walls of the filter screen are fixedly connected to one side of the discharge pipe, and the side wall of the mixing tank is provided with an outer shell.
[0015] As a further description of the above technical solution:
[0016] A discharge pipe 2 is fixedly connected to one side wall of the filter screen, and the outer wall of the discharge pipe 2 is fixedly connected to the side wall of the outer shell.
[0017] As a further description of the above technical solution:
[0018] A motor is fixedly connected to the top of the outer casing, and a spiral blade is fixedly connected to the output end of the motor.
[0019] As a further description of the above technical solution:
[0020] The outer wall of the spiral blade is disposed inside the outer shell, and a discharge rack is fixedly connected to one side of the outer shell.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, by starting motor one, the telescopic rod is driven to rotate, which in turn drives the rotating column to rotate. At the same time, the telescopic rod moves, and the ball on the outer wall of the telescopic rod moves accordingly, thus sliding along the track of the slide groove. This causes the telescopic rod to retract, thereby making the stirring blade rotate. This allows the stirring blade to achieve the lifting function, which stirs the fertilizer. This achieves the effect of constantly changing the position of the fertilizer during the drying process, solving the problems of overheating and uneven drying in the mixing tank, and improving the overall drying performance of the drying device.
[0023] 2. In this utility model, when motor two is started, it drives filter screen two to vibrate, which in turn causes filter screen one to vibrate as well. When filter screen one is screening fertilizer, smaller particles vibrate continuously and will pass through the screen and fall into filter screen two. Then, they enter the mixing tank from discharge pipe one, completing the fertilizer grading. Larger particles enter the outer shell from discharge pipe two. At this time, motor three is started, which drives the spiral blades to rotate, pushing the large fertilizer particles to circulate and fall back from the discharge rack to filter screen one. This achieves the effect of precise fertilizer grading and recycling, solving the problem of large differences in drying time due to different fertilizer particle sizes under the same drying environment, and reducing energy waste and production time loss. Attached Figure Description
[0024] Figure 1 This is a perspective view of the fertilizer drying device for fertilizer production proposed in this utility model;
[0025] Figure 2 This is a schematic cross-sectional view of the mixing tank of the fertilizer drying device for fertilizer production proposed in this utility model.
[0026] Figure 3 This is a schematic diagram of the exploded structure of the rotating column of the fertilizer drying device for fertilizer production proposed in this utility model;
[0027] Figure 4 This is a schematic cross-sectional view of the outer shell of the fertilizer drying device for fertilizer production proposed in this utility model.
[0028] Legend:
[0029] 1. Mixing tank; 2. Motor 1; 3. Rotating column; 4. Mixing blade; 5. Fixed column; 6. Slide groove; 7. Telescopic rod; 8. Sphere; 9. Motor 2; 10. Filter screen 1; 11. Filter screen 2; 12. Discharge pipe 1; 13. Discharge pipe 2; 14. Outer shell; 15. Spiral blade; 16. Motor 3; 17. Discharge rack; 18. Fixed frame. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a fertilizer drying device for fertilizer production, including a mixing tank 1. The mixing tank 1 is a cylindrical structure made of carbon steel, which reduces the adhesion of fertilizer during the mixing process and facilitates cleaning and maintenance. A fixing frame 18 is fixedly connected to the top of the mixing tank 1. A telescopic rod 7 is provided on the side wall of the fixing frame 18. The telescopic rod 7 is made of wear-resistant engineering plastic. This material has self-lubricating properties, which can reduce friction with the rotating column 3 and extend the service life. A mixing component is provided on the outer wall of the telescopic rod 7. A discharge pipe 12 is provided on the side wall of the mixing tank 1. A circulation component is provided on one side of the discharge pipe 12.
[0032] The mixing assembly includes a motor 2, whose outer wall is fixed to the top of the mixing tank 1 by multiple bolts to prevent the motor from shaking during operation and ensure the stability of the entire mixing assembly. The output end of the motor 2 is fixedly connected to the top of the telescopic rod 7. A fixed column 5 is fixedly connected inside the mixing tank 1. The fixed column 5 is made of aluminum alloy, which is lightweight, high-strength, and has good heat dissipation performance. A groove 6 is opened inside the fixed column 5. The telescopic rod 7 is rotatably connected to the outer wall of the rotating column 3. A ball 8 is fixedly connected to the outer wall of the telescopic rod 7. The diameter of the ball 8 is adapted to the width of the groove 6, and its outer wall can slide flexibly on the inner wall of the groove 6. The outer wall of the ball 8 is rotatably connected to the inner wall of the groove 6. The rotating column 3 is fixedly connected inside the telescopic rod 7. The rotating column 3 is made of solid stainless steel, which has high strength and good corrosion resistance. A stirring blade 4 is fixedly connected to the bottom of the rotating column 3. The outer wall of the stirring blade 4 is rotatably connected inside the mixing tank 1 to ensure all-round mixing and turning of the fertilizer.
[0033] Specifically, in the fertilizer drying process, due to the complexity of the drying process, the mixing tank 1 is prone to overheating. This not only affects the lifespan of the equipment but also leads to the decomposition of fertilizer components. Uneven drying also frequently occurs, with some fertilizers being over-dried and others under-dried, affecting product quality. At this point, the motor 2 is started, driving the telescopic rod 7 to rotate. This, in turn, causes the rotating column 3 at the bottom of the telescopic rod 7 to rotate, which in turn moves the sphere 8 mounted on the outer wall of the telescopic rod 7. The outer wall of the sphere 8 slides along the predetermined trajectory of the slide groove 6, causing the telescopic rod 7 to retract. This, in turn, drives the mixing blade 4 to begin mixing the fertilizer, thus enabling the mixing blade 4 to achieve its lifting function. The overall effect of fertilizer drying is improved, the product's moisture content is more stable, and the uniformity is higher, thereby ensuring the reliability and stability of fertilizer quality.
[0034] Reference Figure 1 , Figure 2 and Figure 4 The circulation assembly includes a second motor 9, with a filter screen 11 fixedly connected to its output end. The filter screen 11 has an inclined box-like structure, welded from stainless steel plates. This material offers good corrosion resistance and high strength, enabling it to adapt to the complex environment of fertilizer drying production. The outer wall of the second motor 9 is located on one side of the mixing tank 1. A first filter screen 10 is installed on top of the second filter screen 11, ensuring its flexible rotation and connection stability. The first filter screen 10 has relatively large openings for initial screening of larger fertilizer particles. The side wall of the second filter screen 11 is fixedly connected to one side of the discharge pipe 12. The second filter screen 11 has smaller openings for further screening of smaller fertilizer particles. A shell 1 is located on the side wall of the mixing tank 1. 4. A discharge pipe 13 is fixedly connected to the side wall of filter screen 10. A shell 14 is fixedly connected to the outer wall of discharge pipe 13 by welding. The shell 14 is a cylindrical structure made of ordinary carbon steel. Its surface is treated with anti-corrosion paint to effectively prevent rust and corrosion. A motor 16 is fixedly connected to the top of the shell 14. A spiral blade 15 is fixedly connected to the output end of motor 16. An appropriate gap is maintained between the outer wall of the spiral blade 15 and the inner wall of the shell 14 to avoid friction and collision during operation. The outer wall of the spiral blade 15 is set inside the shell 14. A discharge rack 17 is fixedly connected to one side of the shell 14. The surface is smooth, which facilitates the fertilizer to slide smoothly into the filter screen 10 to realize the circulation screening and drying of fertilizer.
[0035] Specifically, during fertilizer drying, fertilizer particles of varying sizes are concentrated in the same drying environment, resulting in significant differences in drying time. Small particles dry quickly, while large particles often fail to meet drying standards, affecting overall drying efficiency and product quality. At this point, motor 29 is activated, driving filter screen 21 to vibrate, which in turn causes filter screen 10 to vibrate synchronously. As the fertilizer is sieved in filter screen 10, smaller fertilizer particles, affected by the vibration, pass through the screen and fall into the interior of filter screen 21. They then enter the mixing tank 1 through discharge pipe 12, achieving initial grading. Larger fertilizer particles, on the other hand, enter the outer shell 14 through discharge pipe 213. At this point, motor 316 is activated, driving the spiral blades 15 to rotate, propelling the large fertilizer particles through circulation, causing them to fall back from the discharge rack 17 to filter screen 10, re-entering the sieving process. This not only accelerates drying efficiency and significantly increases output per unit time but also improves product quality, ensuring consistency in particle size uniformity and drying degree for each batch of fertilizer.
[0036] Working principle: During the fertilizer drying process, the mixing tank 1 may experience overheating or uneven drying. In this case, the motor 2 is started, and the extension rod 7 of the motor 2 rotates, which in turn drives the rotating column 3 to rotate. At the same time, the extension rod 7 moves, which in turn moves the ball 8 on the outer wall of the extension rod 7. The outer wall of the ball 8 slides along the track of the slide groove 6, which in turn drives the stirring blade 4 to rotate, thus achieving stirring of the stirring blade 4. This allows the stirring blade 4 to be raised and lowered, so that the fertilizer continuously changes position during the drying process, making full contact with hot air or heating medium. This allows the heat to be transferred more evenly to all parts of the fertilizer particles, avoiding local overheating or uneven drying, thereby improving the overall drying effect and making the moisture content of the fertilizer more stable and uniform.
[0037] When fertilizer granules of different sizes are dried in the same drying environment, the drying time will vary significantly. In this case, motor 2 (9) is started, driving filter screen 2 (11) to vibrate, which in turn drives filter screen 10 to vibrate. When fertilizer is sieved inside filter screen 10, smaller fertilizer granules encountering smaller particles will fall into filter screen 2 (11) due to the vibration of motor 2 (9) and filter screen 10, thus causing the fertilizer to fall from discharge pipe 12 into mixing tank 1, achieving fertilizer grading. Larger fertilizer granules will enter the outer shell 14 through discharge pipe 2 (13). At this point, motor 3 (16) is started, driving the spiral blades 15 to rotate, allowing the larger fertilizer granules to circulate and be fed again, causing them to fall from discharge rack 17 into filter screen 10. This achieves fertilizer circulation and batch drying, avoiding the need to extend the overall drying time due to insufficient drying of individual granules.
[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.
Claims
1. A fertilizer drying device for use in the production of fertilizer, comprising a mixing tank (1), characterized in that: The fixed frame (18) is arranged on the top of the stirring tank (1), a telescopic rod (7) is arranged on the side wall of the fixed frame (18), a stirring assembly is arranged on the outer wall of the telescopic rod (7), a discharge pipe (12) is arranged on the side wall of the stirring tank (1), and a circulating assembly is arranged on one side of the discharge pipe (12). The stirring assembly comprises a motor (2), the motor (2) is fixedly connected to the top of the stirring tank (1), the output end of the motor (2) is fixedly connected to the top of the telescopic rod (7), a fixed column (5) is fixedly connected to the inside of the stirring tank (1), a sliding groove (6) is arranged in the fixed column (5), a spherical ball (8) is fixedly connected to the outer wall of the telescopic rod (7), the spherical ball (8) is slidably connected to the inner wall of the sliding groove (6), a rotating column (3) is fixedly connected to the inside of the telescopic rod (7), and a stirring blade (4) is fixedly connected to the bottom of the rotating column (3).
2. The fertilizer drying apparatus for fertilizer production according to claim 1, characterized by: The circulating assembly comprises a motor (9), and a filter screen (11) is fixedly connected to the output end of the motor (9).
3. The fertilizer drying apparatus for fertilizer production according to claim 2, characterized by: The motor (9) is arranged on one side of the stirring tank (1), and the filter screen (11) is arranged on the top of the filter screen (10).
4. The fertilizer drying apparatus for fertilizer production according to claim 3, characterized by: The filter screen (11) is fixedly connected to one side of the discharge pipe (12), and the stirring tank (1) is provided with an outer shell (14).
5. The fertilizer drying apparatus for fertilizer production according to claim 4, characterized by: The filter screen (10) is fixedly connected to the outer shell (14) on one side, and the outer shell (14) is provided with a discharge frame (17).
6. The fertilizer drying apparatus for fertilizer production according to claim 5, characterized by: The filter screen (10) is fixedly connected to the outer shell (14) on one side, and the outer shell (14) is provided with a discharge frame (17).
7. The fertilizer drying apparatus for fertilizer production according to claim 6, characterized by: The motor (16) is fixedly connected to the top of the outer shell (14), and a spiral blade (15) is fixedly connected to the output end of the motor (16). The spiral blade (15) is arranged in the outer shell (14), and the outer shell (14) is provided with a discharge frame (17).