A high tower granulating device for compound fertilizer
By using a slow-rotating nozzle and a filter plate screening design, the problems of poor fertilizer output and uneven screening in high-tower granulation devices have been solved, achieving efficient granulation production and air filtration, and improving fertilizer quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GARSONI FERTILIZER NINGLING
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-29
AI Technical Summary
The fertilizer discharge effect in existing high-tower granulation devices is not good. The fertilizer is prone to sticking together and it is difficult to effectively screen out particles of inconsistent size, which affects the quality of fertilizer.
The design employs a slow, uniform rotation of the nozzle and a damper to eject liquid fertilizer through the nozzle and sieve it using a second filter plate. Combined with the first filter plate to filter the airflow, this ensures uniform particle size and clean air.
It improves fertilizer output efficiency, prevents sticking, ensures uniform particle size, reduces noise, improves air cleanliness, and enhances fertilizer production quality.
Smart Images
Figure CN224293183U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fertilizer production technology, specifically a high-tower granulation device for compound fertilizer. Background Technology
[0002] The high-tower granulation unit is the core equipment for compound fertilizer production. It transforms molten or slurry raw materials into uniform particles. The high-tower granulation unit is usually composed of a tower body, a molten slurry supply system, a rotating nozzle, a cooling system, and a particle collection and post-processing system. In use, the raw materials are first mixed in proportion and then heated and melted. After filtering to remove impurities, the molten slurry is then pumped to the nozzle by a high-pressure pump and rotated to throw out droplets. At this time, the droplets fall freely inside the tower and solidify by exchanging heat with the air.
[0003] For example, the Chinese patent CNN222789157U, entitled "A High-Tower Granulation Device for Alginate Compound Fertilizer," includes a high-tower body, a top cover, an air outlet sleeve, and a fan housing. The fan housing is located on one side of the high-tower body. The top cover is fixed to the top of the high-tower body, and the air outlet sleeve is fixedly connected to the bottom of the high-tower body. Spiral blades are fixed in a ring array on the inner wall of the air outlet sleeve. All the spiral blades are fixed with an inner fixing column on the side near the central axis of the air outlet sleeve. Several heat dissipation fins are fixed on the outer circumferential surface of the high-tower body. The heat dissipation fins are horizontally arranged, and the spacing between the heat dissipation fins is equal. A material conveying pipe is fixedly connected through the center of the top cover, and a nozzle is fixedly connected to the bottom of the material conveying pipe.
[0004] While the existing technologies can achieve fertilizer production, in practical use, the fertilizer discharge effect is not good enough. Fertilizer is usually discharged from the nozzle by vertical dripping, which causes the semi-melted fertilizer to stick together after dripping, thus reducing the quality of fertilizer production. On the other hand, it is difficult to screen the waste material. Usually, it is difficult to ensure that the fertilizer particles are uniform in size after being thrown out, resulting in oversized fertilizer particles being mixed with normal-sized fertilizer particles, thus affecting the quality of the fertilizer output. Therefore, it does not meet the current needs. To address this, we propose a high-tower granulation device for compound fertilizer. Utility Model Content
[0005] The purpose of this invention is to provide a high-tower granulation device for compound fertilizers, so as to solve the problems mentioned in the background art of insufficient fertilizer output and difficulty in screening waste materials.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-tower granulation device for compound fertilizer, comprising a tower body made of metal, the upper end of the tower body having an open structure, a tower cover fixedly installed at the upper end of the tower body, a fixing frame fixedly installed at the front end of the upper end of the tower cover, a feed pipe installed at the center of the upper end of the tower cover, the feed pipe being rotatably connected to the tower cover, and the lower end of the feed pipe extending to the bottom of the tower cover, a nozzle fixedly installed at the lower end of the feed pipe, the nozzle communicating with the feed pipe, a transmission gear fixedly installed on the outside of the feed pipe above the tower cover, and a drive gear installed below the front end of the transmission gear on the fixing frame, the drive gear meshing with the transmission gear.
[0007] Preferably, a first motor is fixedly mounted on the upper end of the fixing frame, the lower end of the output shaft of the first motor extends to the bottom of the fixing frame and is rotatably connected to the tower cover, the output shaft of the first motor passes through the drive gear, and the output shaft of the first motor is fixedly connected to the drive gear.
[0008] Preferably, a fixing frame is fixedly installed at the lower part of the tower body, and a second filter plate is installed above the fixing frame, with the second filter plate slidingly engaged with the tower body.
[0009] Preferably, dampers are fixedly installed at both the front and rear ends of the lower ends of the second filter plate, the lower ends of the fixed ends of the dampers are fixedly connected to the fixed frame, and a support spring is fixedly installed between the fixed ends and the telescopic ends of the dampers.
[0010] Preferably, the tower body has air inlet chambers on both sides above the second filter plate. The air inlet chambers are through-type structures. A first filter plate is installed inside the air inlet chamber. A magnetic strip is fixedly installed on the side of the first filter plate near the inside of the air inlet chamber. The magnetic strip is attracted to the inner wall of the air inlet chamber by magnetic force.
[0011] Preferably, a mounting bracket is fixedly installed on the outside of the tower body at the opening of the air inlet cavity. A second motor is fixedly installed on one side of the outside of the mounting bracket. The output shaft of the second motor extends to the other side of the mounting bracket. A fan blade is fixedly installed on the outside of the output shaft of the second motor, and the fan blade corresponds to the opening of the air inlet cavity.
[0012] Preferably, four support rods are fixedly installed on the lower part of the tower body, and the support rods are distributed in a ring at equal intervals. A discharge pipe is fixedly installed at the center of the lower end of the tower body, and the discharge pipe is connected to the tower body. A valve is fixedly installed on the outside of the discharge pipe.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] (1) This utility model enables the nozzle to rotate slowly and uniformly through the first motor and the drive gear. When granulation is performed, the first motor is turned on, and the output shaft of the first motor drives the drive gear to rotate slowly and uniformly. At the same time, the transmission gear meshing with the drive gear rotates together. The transmission gear drives the feed pipe fixedly connected to it to rotate on the tower cover. At this time, the nozzle at the lower end of the feed pipe rotates together. Then, the operator delivers the melted fertilizer into the feed pipe. Under the action of rotating the nozzle, the liquid fertilizer is thrown out from the nozzle. The operator can adjust the throwing range of the liquid fertilizer so that the fertilizer will not adhere to the tower wall and avoid the fertilizer from dripping vertically.
[0015] (2) This utility model can screen and filter the formed fertilizer granules through the damper and the second filter plate. When the granulation operation is carried out, the solidified fertilizer granules fall onto the second filter plate and are screened and filtered by the second filter plate. The impact generated by the falling granules will cause the second filter plate to vibrate. The vibration will cause the qualified granules to pass through the second filter plate and fall to the bottom of the tower, avoiding the mixing of large defective granules with normal granules. At the same time, the vibration on the second filter plate will squeeze the damper and the support spring. The damper and the support spring will deform after being squeezed. The deformation of the damper and the support spring will absorb the vibration on the second filter plate and prevent the vibration from being directly transmitted to the tower, thereby reducing the noise when the tower is operating.
[0016] (3) This utility model can filter the air in the airflow through the first filter plate and magnetic strip. When granulation is carried out, the air enters the tower body faster by rotating the fan blades. Before the airflow enters the tower body, the first filter plate intercepts and filters the dust in the air, so that clean air enters the tower body and avoids the situation where dust enters the tower body and adheres to the surface of fertilizer granules. At the same time, after the device has been used for a period of time, the operator pulls the first filter plate to remove it from the air inlet chamber, cleans the first filter plate, and finally aligns the cleaned first filter plate with the air inlet chamber opening and puts it into the air inlet chamber. At this time, the first filter plate is fixed inside the air inlet chamber by magnetic strip adsorption, thereby improving the efficiency of the first filter plate disassembly and assembly. Attached Figure Description
[0017] Figure 1 This is a perspective view of the overall structure of this utility model;
[0018] Figure 2 This is a front view of the internal structure of this utility model;
[0019] Figure 3 This is a side view of the internal structure of this utility model;
[0020] Figure 4For the present utility model Figure 2 Enlarged view of a portion of region A in the middle.
[0021] In the diagram: 1. Tower body; 2. Tower cover; 3. Fixing frame; 4. First motor; 5. Feed pipe; 6. Transmission gear; 7. Drive gear; 8. Support rod; 9. Mounting frame; 10. Second motor; 11. Fan blade; 12. Air inlet chamber; 13. First filter plate; 14. Magnetic strip; 15. Nozzle; 16. Fixing frame; 17. Damper; 18. Support spring; 19. Second filter plate; 20. Valve; 21. Discharge pipe. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Please see Figure 1-4 An embodiment of this utility model provides a high-tower granulation device for compound fertilizer, comprising a tower body 1, the tower body 1 being made of metal material, the upper end of the tower body 1 being an open structure, a tower cover 2 being fixedly installed at the upper end of the tower body 1, four support rods 8 being fixedly installed at the lower part of the outside of the tower body 1, the support rods 8 being distributed in a ring at equal intervals, a discharge pipe 21 being fixedly installed at the center position of the lower end of the tower body 1, the discharge pipe 21 being connected to the tower body 1, and a valve 20 being fixedly installed on the outside of the discharge pipe 21.
[0024] Please see Figure 1 Diagram and Figure 3 A fixing frame 3 is fixedly installed at the front end of the upper end of the tower cover 2. A feed pipe 5 is installed at the center of the upper end of the tower cover 2. The feed pipe 5 is rotatably connected to the tower cover 2, and the lower end of the feed pipe 5 extends to the bottom of the tower cover 2. A nozzle 15 is fixedly installed at the lower end of the feed pipe 5 and communicates with the feed pipe 5. A transmission gear 6 is fixedly installed on the outside of the feed pipe 5 above the tower cover 2. A drive gear 7 is installed below the front end of the transmission gear 6 on the fixing frame 3. The drive gear 7 is meshed with the transmission gear 6. A first motor 4 is fixedly installed at the upper end of the fixing frame 3. The lower end of the output shaft of the first motor 4 extends to the bottom of the fixing frame 3 and is rotatably connected to the tower cover 2. The output shaft of the first motor 4 passes through the drive gear 7 and is fixedly connected to the drive gear 7, so as to drive the nozzle 15 to rotate through the drive gear 7.
[0025] Please see Figure 2 and Figure 3A fixed frame 16 is fixedly installed at the bottom inside the tower body 1. A second filter plate 19 is installed above the fixed frame 16. The second filter plate 19 is slidably fitted with the tower body 1. Dampers 17 are fixedly installed at the front and rear ends on both sides of the lower end of the second filter plate 19. The lower end of the fixed end of the damper 17 is fixedly connected to the fixed frame 16. A support spring 18 is fixedly installed between the fixed end and the telescopic end of the damper 17 to facilitate the screening and filtration of the solidified fertilizer through the second filter plate 19.
[0026] Please see Figure 1 , Figure 2 and Figure 4 The tower body 1 has air inlet chambers 12 on both sides above the second filter plate 19. The air inlet chambers 12 are through-type structures. The first filter plate 13 is installed inside the air inlet chamber 12. A magnetic strip 14 is fixedly installed on the side of the first filter plate 13 near the inside of the air inlet chamber 12. The magnetic strip 14 and the inner wall of the air inlet chamber 12 are attracted to each other by magnetic force. A mounting bracket 9 is fixedly installed on the outside of the tower body 1 at the opening of the air inlet chamber 12. A second motor 10 is fixedly installed on one side of the outside of the mounting bracket 9. The output shaft of the second motor 10 extends to the other side of the mounting bracket 9. A fan blade 11 is fixedly installed on the outside of the output shaft of the second motor 10. The fan blade 11 corresponds to the opening of the air inlet chamber 12, so as to facilitate the filtration of dust in the air by the first filter plate 13.
[0027] Working Principle: During operation, the first motor 4 is turned on, causing its output shaft to drive the drive gear 7 to rotate slowly and uniformly. Simultaneously, the transmission gear 6, meshing with the drive gear 7, rotates as well. The transmission gear 6 drives the feed pipe 5, which is fixedly connected to it, to rotate on the tower cover 2. At the same time, the nozzle 15 at the lower end of the feed pipe 5 rotates as well. The rotating nozzle 15 causes liquid fertilizer to be ejected from it. The operator can control the ejection range of the liquid fertilizer. The solidified fertilizer particles then fall onto the second filter plate 19, where they are sieved and filtered. The impact of the falling particles causes the second filter plate 19 to vibrate. This vibration forces the suitable particles through the second filter plate 19 and down to the bottom of the tower body 1. Simultaneously, the vibration on the second filter plate 19 affects the damper 17 and the support... The support spring 18 causes compression, and the damper 17 and support spring 18 deform after being compressed. The deformation of the damper 17 and support spring 18 absorbs the vibration on the second filter plate 19. During this process, the fan blade 11 rotates to accelerate the air into the tower body 1, and the valve 20 is kept open. Before the airflow enters the tower body 1, the first filter plate 13 intercepts and filters the dust in the air, allowing clean air to enter the tower body 1. At the same time, after the device has been used for a period of time, the operator pulls the first filter plate 13 to remove it from the air inlet chamber 12, and then cleans the first filter plate 13. Finally, the cleaned first filter plate 13 is aligned with the opening of the air inlet chamber 12 and placed into the air inlet chamber 12. At this time, the first filter plate 13 is fixed inside the air inlet chamber 12 by magnetic strip 14.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A high-tower granulation device for compound fertilizer, comprising a tower body (1), wherein the tower body (1) is made of metal material, characterized in that: The upper end of the tower body (1) is an open structure. A tower cover (2) is fixedly installed on the upper end of the tower body (1). A fixing frame (3) is fixedly installed at the front end of the upper end of the tower cover (2). A feed pipe (5) is installed at the center of the upper end of the tower cover (2). The feed pipe (5) is rotatably connected to the tower cover (2), and the lower end of the feed pipe (5) extends to the bottom of the tower cover (2). A nozzle (15) is fixedly installed at the lower end of the feed pipe (5). The nozzle (15) is connected to the feed pipe (5). A transmission gear (6) is fixedly installed on the outside of the feed pipe (5) above the tower cover (2). A drive gear (7) is installed below the front end of the transmission gear (6) on the fixing frame (3). The drive gear (7) meshes with the transmission gear (6).
2. The high-tower granulation device for compound fertilizer according to claim 1, characterized in that: The upper end of the fixed frame (3) is fixedly provided with a first motor (4). The lower end of the output shaft of the first motor (4) extends to the bottom of the fixed frame (3) and is rotatably connected to the tower cover (2). The output shaft of the first motor (4) passes through the drive gear (7) and is fixedly connected to the drive gear (7).
3. The high-tower granulation device for compound fertilizer according to claim 2, characterized in that: A fixed frame (16) is fixedly installed at the bottom inside the tower body (1), and a second filter plate (19) is installed above the fixed frame (16). The second filter plate (19) slides with the tower body (1).
4. The high-tower granulation device for compound fertilizer according to claim 3, characterized in that: Dampers (17) are fixedly installed at the front and rear ends on both sides of the lower end of the second filter plate (19). The lower end of the fixed end of the damper (17) is fixedly connected to the fixed frame (16). A support spring (18) is fixedly installed between the fixed end and the telescopic end of the damper (17).
5. The high-tower granulation device for compound fertilizer according to claim 4, characterized in that: The tower body (1) has air inlet chambers (12) on both sides above the second filter plate (19). The air inlet chambers (12) are through-type structures. The air inlet chambers (12) are equipped with a first filter plate (13). A magnetic strip (14) is fixedly installed on the side of the first filter plate (13) near the inside of the air inlet chamber (12). The magnetic strip (14) and the inner wall of the air inlet chamber (12) are attracted to each other by magnetic force.
6. The high-tower granulation device for compound fertilizer according to claim 5, characterized in that: The tower body (1) is fixedly provided with a mounting bracket (9) at the opening position of the air inlet chamber (12). A second motor (10) is fixedly provided on one side of the mounting bracket (9). The output shaft of the second motor (10) extends to the other side of the mounting bracket (9). A fan blade (11) is fixedly provided on the outside of the output shaft of the second motor (10). The fan blade (11) corresponds to the opening position of the air inlet chamber (12).
7. The high-tower granulation device for compound fertilizer according to claim 6, characterized in that: Four support rods (8) are fixedly installed on the lower part of the tower body (1). The support rods (8) are distributed in a ring at equal intervals. A discharge pipe (21) is fixedly installed at the center of the lower end of the tower body (1). The discharge pipe (21) is connected to the tower body (1). A valve (20) is fixedly installed on the outside of the discharge pipe (21).