Agricultural fertilizer granulation device

By using a first conical head to disperse fertilizer raw materials in an agricultural fertilizer granulation device, combined with a scraper device and a hot air blower, the problem of uneven fertilizer particles in traditional devices is solved, achieving regular shaping and stability of fertilizer particles, and supporting precision fertilization.

CN224371373UActive Publication Date: 2026-06-19HEBEI GUANYU AGRICULTURAL TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI GUANYU AGRICULTURAL TECHNOLOGY CO LTD
Filing Date
2025-05-12
Publication Date
2026-06-19

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Abstract

The utility model discloses a kind of including: equipment frame;Conveying cylinder, conveying cylinder is arranged on the surface of equipment frame, the center of conveying cylinder is rotatably connected with screw rod;Granulating device, granulating device includes first conical head and granulating block, granulating block is set in the discharge end of conveying cylinder, granulating block surface is equipped with multiple groups of annular array arrangement and is set granulating mouth, the inner side wall of granulating block is connected with the big end of first conical head.The agricultural fertilizer granulating device of the utility model, after being dispersed by first conical head, fertilizer raw material can more evenly reach the inner side wall of granulating block, fertilizer particles extruded from each granulating mouth are more consistent in size and shape, improve the quality stability of fertilizer product, benefit precision fertilization in agricultural production.
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Description

Technical Field

[0001] This utility model relates to the technical field of fertilizer production, and in particular to an agricultural fertilizer granulation device. Background Technology

[0002] In current agricultural production, precise fertilizer application is crucial for the healthy growth of crops, increased yields, and environmental protection. However, traditional fertilizer granulation technology has many shortcomings. In the past, during the fertilizer granulation process, uneven distribution of raw materials resulted in fertilizer granules of varying sizes and shapes extruded from the granulation outlet. This made it difficult for farmers to precisely control the amount of fertilizer applied, and uneven fertilizer distribution could lead to nutrient over- or under-nutrient distribution in some crops, affecting the uniformity of crop growth and overall yield. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, the purpose of this utility model is to propose an agricultural fertilizer granulation device, which allows fertilizer raw materials to reach the inner wall of the granulation block more evenly, and the fertilizer granules squeezed out from each granulation port are more consistent in size and shape, thereby improving the quality stability of fertilizer products and facilitating precise application in agricultural production.

[0005] To achieve the above objectives, this utility model proposes an agricultural fertilizer granulation device, comprising: an equipment frame; a conveying cylinder, wherein the conveying cylinder is disposed on the equipment frame and a spiral rod is rotatably connected to the center of the conveying cylinder; and a granulation device, wherein the granulation device comprises a first conical head and a granulation block, the granulation block being disposed at the discharge end of the conveying cylinder, the surface of the granulation block having multiple sets of granulation ports arranged in a ring array, and the inner sidewall of the granulation block being connected to the large end of the first conical head.

[0006] The agricultural fertilizer granulation device of this invention, after being dispersed by the first conical head, allows the fertilizer raw materials to reach the inner wall of the granulation block more evenly. The fertilizer particles squeezed out from each granulation port are more consistent in size and shape, which improves the quality stability of the fertilizer product and facilitates precise fertilization in agricultural production.

[0007] In addition, the agricultural fertilizer granulation device proposed in the application may also have the following additional technical features:

[0008] Specifically, the pelletizing device further includes an extruder block, a bearing seat, and a bearing ring;

[0009] The bearing seat is fixed to the surface of the equipment frame, the shaft ring is rotatably connected to the center of the bearing seat, and the discharge end of the conveying cylinder;

[0010] The extrusion block has several sets of extrusion grooves, the feed end of the extrusion block is connected to the discharge end of the conveying cylinder, and the extrusion block is rotatably connected inside the bearing seat.

[0011] The pellet block is fixed to one side of the shaft ring, and the first conical head is located inside the shaft ring. The diameter of the large end of the first conical head is smaller than the inner diameter of the shaft ring.

[0012] Specifically, a conveying motor is fixed to the outer wall of the conveying cylinder, the output end of the conveying motor is connected to one end of the screw rod, and one end of the screw rod is connected to a second conical head, the small end of the second conical head being close to the granulation block.

[0013] Specifically, it also includes a scraper device, which includes a scraper motor. The output end of the scraper motor is connected to a rotating block, and multiple sets of scraper blades arranged in a ring array are fixed on the inner side of the rotating block.

[0014] Specifically, it also includes multiple sets of hot air blowers, which are fixed to the surface of the equipment frame and have their air outlets facing the conveying cylinder.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0017] Figure 1 This is a schematic diagram of the overall structure of an agricultural fertilizer granulation device according to an embodiment of the present invention;

[0018] Figure 2 A schematic diagram of an agricultural fertilizer granulation device according to an embodiment of the present invention, excluding the conveyor cylinder;

[0019] Figure 3 This is a schematic diagram of the internal structure of the conveying cylinder in an agricultural fertilizer granulation device according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the internal structure of the conveying cylinder in an agricultural fertilizer granulation device according to an embodiment of the present invention, from another perspective.

[0021] As shown in the figure: 1. Equipment frame; 2. Conveying cylinder; 3. Screw rod; 4. Pellet discharge device; 5. First cone head; 6. Pellet discharge block; 7. Pellet discharge port; 8. Extrusion block; 9. Shaft seat; 10. Shaft ring; 11. Conveying motor; 12. Scraper device; 13. Scraper motor; 14. Rotary block; 15. Pellet scraper; 16. Hot air blower. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0023] The agricultural fertilizer granulation device of this utility model is described below with reference to the accompanying drawings.

[0024] like Figures 1-4 As shown, the agricultural fertilizer granulation device of this utility model embodiment includes:

[0025] Equipment rack 1.

[0026] The conveyor cylinder 2 is mounted on the equipment frame 1. A screw rod 3 is rotatably connected to the center of the conveyor cylinder 2, which is the core power component for conveying fertilizer raw materials. When the screw rod 3 starts to rotate under the drive of a motor or other power device, its spiral blades will push the fertilizer raw materials forward along the axis of the conveyor cylinder 2.

[0027] The granulation device 4 includes a first conical head 5 and a granulation block 6. The granulation block 6 is located at the discharge end of the conveying cylinder 2. Multiple sets of granulation outlets 7 arranged in a circular array are formed on the surface of the granulation block 6. The inner wall of the granulation block 6 is connected to the large end of the first conical head 5. When fertilizer raw material is conveyed from the conveying cylinder 2 to the granulation device 4, it first contacts the first conical head 5. Due to the special shape of the conical head, the fertilizer raw material is subjected to a dispersing force on its surface, allowing it to spread more evenly around the inner wall of the granulation block 6, preparing it for subsequent extrusion through the granulation outlets 7 to form granules. The distance from each set of granulation outlets 7 to the center is greater than the radius of the first conical head 5, ensuring the raw material is just squeezed into the granulation outlets 7.

[0028] Specifically, after being guided by the first conical head 5, the fertilizer raw material is evenly squeezed onto the inner wall of the granulation block 6, and then extruded through the granulation port 7 to form regularly shaped fertilizer granules, thus completing the fertilizer granulation process.

[0029] In one embodiment of the present invention, the pelleting device 4 further includes an extrusion block 8, a bearing seat 9, and a shaft ring 10.

[0030] The bearing seat 9 is fixed on the surface of the equipment frame 1, and the shaft ring 10 is rotatably connected to the center of the bearing seat 9, which is the discharge end of the conveying cylinder 2.

[0031] The extrusion block 8 has several sets of extrusion grooves. The feed end of the extrusion block 8 is connected to the discharge end of the conveying cylinder 2. The extrusion block 8 is rotatably connected inside the bearing seat 9.

[0032] The pellet block 6 is fixed on one side of the shaft ring 10, and the first conical head 5 is located inside the shaft ring 10. The diameter of the large end of the first conical head 5 is smaller than the inner diameter of the shaft ring 10.

[0033] Specifically, the extrusion block 8 has several sets of extrusion grooves. When the raw material enters the extrusion block 8, the extrusion grooves will divide and initially compress it, giving it preliminary shaping and a certain degree of compactness, in preparation for subsequent granulation. The extrusion block 8 can rotate inside the bearing seat 9. This design helps to flexibly adjust the extrusion pressure according to the fertilizer characteristics. Inside the bearing ring 10, the first conical head 5 is located. The diameter of its large end is smaller than the inner diameter of the bearing ring 10. When the bearing ring 10 rotates, it can change the relative position and angle between the first conical head 5 and the granulation block 6, thereby affecting the distribution of fertilizer raw materials on the inner wall of the granulation block 6, and ultimately changing the extrusion pressure of the raw material at the granulation port 7, making the granules more compact.

[0034] In one embodiment of this utility model, a conveying motor 11 is fixed to the outer wall of the conveying cylinder 2. The output end of the conveying motor 11 is connected to one end of the screw rod 3. One end of the screw rod 3 is connected to a second conical head, and the small end of the second conical head is close to the granulation block.

[0035] Specifically, the conveyor motor 11 drives the screw rod 3 to rotate, and the screw rod 3 conveys the material to the position of the pellet 6. The cone head of the second cone head is set so that the material gathers at the slope position, and the extruded pellets are more compact.

[0036] In one embodiment of the present invention, a scraper device 12 is also included. The scraper device 12 includes a scraper motor 13. The output end of the scraper motor 13 is connected to a rotating block 14. Multiple sets of scraper blades 15 arranged in a ring array are fixed on the inner side of the rotating block 14.

[0037] Specifically, when the scraper motor 13 starts operating, its output end drives the connected rotating block 14 to rotate together. Multiple sets of scraper blades 15 arranged in a circular array are fixed to the inner side of the rotating block 14. This arrangement allows the scraper blades 15 to move in a circular motion around specific positions such as the granulation device 4 or the discharge end of the conveying cylinder 2, driven by the rotating block 14. During the granulation process, fertilizer particles may adhere to the area around the granulation port 7 of the granulation device 4, the inner wall of the discharge end of the conveying cylinder 2, etc. Accumulated fertilizer not only affects the normal operation of the device but also reduces the forming quality of the fertilizer particles. At this time, the scraper blades 15 play a crucial role. During rotation, they can precisely scrape off these adhered and accumulated fertilizer particles, keeping the granulation port 7 unobstructed, ensuring that new fertilizer raw materials can be smoothly extruded to form particles. They also ensure the overall cleanliness of the granulation device, avoiding equipment failures caused by fertilizer residue and maintaining the efficient and stable operation of the device.

[0038] In one embodiment of the present invention, multiple sets of hot air blowers 16 are also included. The hot air blowers 16 are fixed on the surface of the equipment frame 1, and the air outlets of the hot air blowers 16 face the conveying cylinder 2.

[0039] Specifically, when fertilizer raw materials are conveyed in the conveying cylinder 2, hot air can reduce the viscosity of the raw materials, making the flow of the raw materials more smooth under the push of the screw rod 3, reducing the conveying jams and blockages caused by the high viscosity of the raw materials, and improving the conveying efficiency.

[0040] Specifically, in actual operation, the conveyor motor 11 drives the screw rod 3 to rotate, and the screw rod 3 conveys the material to the position of the granulation block 6. The cone of the second cone head is set so that the material gathers at the slope position, and the extruded granules are more compact. After being guided by the first cone head 5, the fertilizer raw material is evenly squeezed to the inner wall of the granulation block 6, and then extruded through the granulation port 7 to form fertilizer granules with regular shapes, thus completing the fertilizer granulation process.

[0041] In summary, the agricultural fertilizer granulation device of this utility model, after being dispersed by the first conical head 5, allows the fertilizer raw materials to reach the inner wall of the granulation block 6 more evenly. The fertilizer particles squeezed out from each granulation port 7 are more consistent in size and shape, which improves the quality stability of the fertilizer product and facilitates precise fertilization in agricultural production.

[0042] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An agricultural fertilizer prilling apparatus characterized by, include: Equipment rack (1); A conveying cylinder (2) is mounted on the equipment frame (1), and a screw rod (3) is rotatably connected to the center of the conveying cylinder (2). The pellet discharge device (4) includes a first conical head (5) and a pellet discharge block (6). The pellet discharge block (6) is disposed at the discharge end of the conveying cylinder (2). The surface of the pellet discharge block (6) has multiple sets of pellet discharge ports (7) arranged in a ring array. The inner sidewall of the pellet discharge block (6) is connected to the large end of the first conical head (5).

2. The agricultural fertilizer prilling apparatus of claim 1, wherein, The pelletizing device (4) also includes an extrusion block (8), a bearing seat (9), and a shaft ring (10); The bearing seat (9) is fixed on the surface of the equipment frame (1), the shaft ring (10) is rotatably connected to the center of the bearing seat (9), and the discharge end of the conveying cylinder (2); The extrusion block (8) has several sets of extrusion grooves. The feed end of the extrusion block (8) is connected to the discharge end of the conveying cylinder (2). The extrusion block (8) is rotatably connected inside the bearing seat (9). The pellet block (6) is fixed on one side of the shaft ring (10), and the first conical head (5) is located inside the shaft ring (10). The diameter of the large end of the first conical head (5) is smaller than the inner diameter of the shaft ring (10).

3. The agricultural fertilizer prilling apparatus of claim 1, wherein, A conveying motor (11) is fixed to the outer wall of the conveying cylinder (2). The output end of the conveying motor (11) is connected to one end of the screw rod (3). One end of the screw rod (3) is connected to a second conical head. The small end of the second conical head is close to the granulation block.

4. The agricultural fertilizer prilling apparatus of claim 1, wherein, It also includes a scraper device (12), which includes a scraper motor (13). The output end of the scraper motor (13) is connected to a rotating block (14). Multiple sets of scraper blades (15) arranged in a ring array are fixed on the inner side of the rotating block (14).

5. The agricultural fertilizer prilling apparatus of claim 1, wherein, It also includes multiple sets of hot air blowers (16), which are fixed on the surface of the equipment frame (1) and the air outlets of the hot air blowers (16) face the conveying cylinder (2).