Organic fertilizer granule automatic forming and screening device
By designing an automatic organic fertilizer granule forming and screening device, the problems of adhesion and clogging of damp granules were solved by using drying and screening components, which improved screening efficiency, reduced labor costs and equipment footprint, and ensured the integrity of the granules.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN JINSHANG TECH SERVICE CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-24
Smart Images

Figure CN224542308U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of organic fertilizer granule production technology, and in particular to an automatic organic fertilizer granule forming and screening device. Background Technology
[0002] Driven by the concept of sustainable agricultural development, organic fertilizers are widely used because they can improve soil structure and enhance crop quality. Granular production has become an industry trend. Granular organic fertilizers are easy to store, transport, and apply mechanically, and can reduce nutrient loss. Therefore, the requirements for granulation quality and production efficiency are increasing.
[0003] During the molding process of organic fertilizer granules, the raw materials need to maintain a certain level of moisture to ensure molding stability. As a result, the freshly molded granules are generally quite damp. If they are screened directly, they are prone to sticking and clogging the screen. Furthermore, the granules produced by the molding equipment need to be transferred to the drying equipment manually or by an additional conveying device, and then transferred to the screening equipment. This process is fragmented, which not only increases labor costs and equipment footprint, but may also cause granule breakage due to collisions during transportation, affecting product integrity.
[0004] To address this, an automatic organic fertilizer pellet forming and screening device is proposed. Utility Model Content
[0005] The purpose of this invention is to provide an automatic organic fertilizer granule forming and screening device, which can solve the problem that in the existing organic fertilizer granule forming process, the raw materials need to maintain a certain humidity to ensure the stability of the forming process, resulting in the freshly formed granules being generally quite damp. If they are directly screened, they are prone to sticking and clogging of the screen. In addition, the granules produced by the forming equipment need to be transferred to the drying equipment by manual labor or additional conveying devices, and then transferred to the screening equipment. The process is decentralized, which not only increases labor costs and equipment floor space, but also may cause granule damage due to collisions during the transfer process, affecting the integrity of the product.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic organic fertilizer granule forming and screening device, comprising a base, with supports fixedly connected to both sides of the top of the base, and a forming cylinder fixedly connected between the two supports. A drying component is disposed below the forming cylinder, and a screening component is fixedly connected to the top of the base and located directly below the drying component. The drying component includes an inner cylinder, which is fixedly sleeved on the surface of the forming cylinder. A jacket layer is sleeved on the surface of the inner cylinder. Connecting rods are fixedly connected to both sides of the jacket layer and the connecting rods are fixedly connected to the supports. An electric heating block is installed inside the jacket layer. A guide plate is fixedly connected between the inner cylinder and the jacket layer on the adjacent sides, and the guide plate is inclined.
[0007] Preferably, the filtering component includes a filtering frame located directly below the jacket layer, and the filtering frame has drop-out openings on both sides.
[0008] Preferably, a flat plate is fixedly connected inside the left drop opening, and a screen is fixedly connected inside the right drop opening, both of which are inclined.
[0009] Preferably, a vibration motor is fixedly installed at the bottom of the screening frame, and the vibration motor is located in the middle of the bottom of the screening frame.
[0010] Preferably, a fixing block is fixedly connected between the base and the opposite side of the screening frame, and a support spring is fixedly connected between the two fixing blocks.
[0011] Preferably, a receiving box is fixedly connected to both sides of the top of the base, and the two receiving boxes are used in conjunction with two drop ports respectively.
[0012] Preferably, the forming cylinder has an extrusion plate inside and the extrusion plate is tightly fitted to the inner wall of the forming cylinder. An electric push rod is fixedly connected to the middle of the bottom of the forming cylinder, and the telescopic end of the electric push rod is fixedly connected to the bottom of the extrusion plate.
[0013] Preferably, the surface of the forming cylinder is provided with a plurality of forming holes, which are used in conjunction with the extrusion plate.
[0014] Preferably, a support ring is fixedly sleeved on the surface of the forming cylinder, a reciprocating cylinder is fixedly connected inside the support ring, a connecting plate is fixedly connected to the telescopic end of the reciprocating cylinder, and a cutting blade is fixedly connected to the bottom of the connecting plate.
[0015] Preferably, the top of the forming cylinder is fixedly connected to a feed pipe, and the top of the feed pipe is provided with a cap.
[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. This application incorporates a drying component that can directly dry the granules after they have been formed, effectively solving the problem of sticking and clogging of the screen due to moisture in the freshly formed granules during screening, thus ensuring the smooth progress of the screening process. 2. This application sets up a screening component. The screening frame is located directly below the jacket layer and can directly receive particles falling from the drying component. When the vibration motor is working, it can drive the screening frame to vibrate, causing the particles to move inside the screening frame. Particles that meet the specifications can pass through the screen and enter the corresponding receiving box, while oversized particles will fall from the left side of the plate into another receiving box. This achieves graded screening of particles, making it convenient to collect particles of different specifications and further improving the efficiency of the screening work. Attached Figure Description
[0017] Figure 1 This is an overall structural diagram of the automatic organic fertilizer pellet forming and screening device of this utility model. Figure 2 This is a schematic diagram showing the connection between the drying component and the forming cylinder of this utility model; Figure 3 This is a schematic diagram of the structure of the screening component of this utility model; Figure 4 This is a front sectional view of the molded cylinder of this utility model; Figure 5 This utility model Figure 4 Enlarged diagram of point A in the middle.
[0018] In the diagram, 1. Base; 2. Support; 3. Forming cylinder; 4. Drying assembly; 401. Inner cylinder; 402. Jacket layer; 403. Connecting rod; 404. Electric heating block; 405. Guide plate; 5. Screening assembly; 501. Screening frame; 502. Drop outlet; 503. Flat plate; 504. Screen; 505. Vibration motor; 506. Fixed round block; 507. Support spring; 6. Receiving box; 7. Extrusion plate; 8. Electric push rod; 9. Forming hole; 10. Support ring; 11. Reciprocating cylinder; 12. Connecting plate; 13. Cutting knife; 14. Feed pipe; 15. Cover. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1-5 The present invention provides the following technical solution: An automatic organic fertilizer granule forming and screening device includes a base 1, with supports 2 fixedly connected to both sides of the top of the base 1, and a forming cylinder 3 fixedly connected between the two supports 2. A drying component 4 is arranged below the forming cylinder 3. A screening component 5 is fixedly connected to the top of the base 1 and is located directly below the drying component 4. The drying component 4 includes an inner cylinder 401, which is fixedly sleeved on the surface of the forming cylinder 3. A jacket layer 402 is sleeved on the surface of the inner cylinder 401. Connecting rods 403 are fixedly connected to both sides of the jacket layer 402 and are fixedly connected to the supports 2. An electric heating block 404 is installed inside the jacket layer 402. A guide plate 405 is fixedly connected between the inner cylinder 401 and the jacket layer 402 on the side that are close to each other. The guide plate 405 is inclined.
[0021] In this embodiment: by setting the drying component 4, the inner cylinder 401 is fixedly sleeved on the surface of the forming cylinder 3. After the formed particles are extruded from the forming hole 9, they will directly enter the area between the inner cylinder 401 and the jacket layer 402, avoiding loss and contamination during particle transfer. At the same time, the inner cylinder 401 provides a closed drying environment for the particles, reducing heat loss and improving heat utilization efficiency. The jacket layer 402 can form an annular heating cavity together with the inner cylinder 401. The electric heating block 404 can be accommodated inside, forming a relatively closed space, so that the heat is concentrated in the cavity, enhancing the heating effect on the particles. The jacket layer 402 also plays a role in heat insulation, reducing heat dissipation to the external environment and reducing energy consumption. The electric heating block 404 is installed inside the jacket layer 402. After being energized, it generates heat, so that the inner cylinder 401 and the inner cylinder 402 can be heated together. The temperature of the annular space between the jacket layers 402 rises, and the heat can be transferred to the falling particles through air conduction and radiation from the inner cylinder 401 wall, evaporating the moisture on the particle surface and achieving the drying purpose. The electric heating block 404 can adjust the power through an external control system to flexibly control the heating temperature and adapt to the drying needs of particles with different humidity. The guide plate 405 can change the falling trajectory of the particles. After the particles are extruded from the forming hole 9, they fall under the action of gravity. After encountering the guide plate 405, they will turn in the inclined direction to form a Z-shaped motion path, which prolongs the residence time of the particles in the drying component 4, ensures that the particles are in full contact with the hot air, improves the drying uniformity, and ensures that each particle is effectively heated. The connecting rod 403 can connect the entire drying component 4 to the support 2 to ensure that the drying component 4 can operate stably.
[0022] Specifically, such as Figure 3 As shown, the filtering component 5 includes a filtering frame 501, which is located directly below the jacket layer 402. Both sides of the filtering frame 501 have drop openings 502.
[0023] Specifically, such as Figure 3 As shown, a plate 503 is fixedly connected inside the left drop outlet 502, and a screen 504 is fixedly connected inside the right drop outlet 502. Both the plate 503 and the screen 504 are inclined.
[0024] Specifically, such as Figure 3 As shown, a vibration motor 505 is fixedly installed at the bottom of the filter box 501, and the vibration motor 505 is located in the middle of the bottom of the filter box 501.
[0025] Specifically, such as Figure 3 As shown, a fixed circular block 506 is fixedly connected between the base 1 and the opposite side of the screening box 501, and a support spring 507 is fixedly connected between the two fixed circular blocks 506.
[0026] Specifically, such as Figure 1As shown, receiver boxes 6 are fixedly connected to both sides of the top of the base 1, and the two receiver boxes 6 are used in conjunction with the two drop ports 502 respectively.
[0027] In this embodiment: By setting up the screening component 5, the screening frame 501 is used to receive particles falling from the drying component 4, providing screening space for the particles. A relatively enclosed screening area is formed inside, ensuring that the particles move only within the screening frame 501 under vibration, preventing particles from scattering outside the equipment and ensuring the orderly nature of the screening process. The vibration motor 505 is installed at the bottom center of the screening frame 501 and is the power source for screening. During operation, it generates high-frequency vibration and transmits it to the screening frame 501, causing the particles within the screening frame 501 to shift and tumble under vibration, breaking the static state of the particles and ensuring that the particles can uniformly contact the plate 503 and the screen 504, avoiding screening omissions caused by particle accumulation. The screen 504 is fixed inside the right drop outlet 502. The aperture of the screen 504 can be designed according to the preset particle size. Under vibration, qualified particles of the correct size can pass through the aperture of the screen 504, fall to the top of the plate 503, and then be discharged from the left drop outlet 502. Particles larger than the aperture of the screen 504 will be intercepted by the screen 504 and then discharged from the right drop outlet 502 along the screen 504. The support spring 507 connects the screening frame 501 to the base 1, providing buffering and support to ensure the stability of the screening frame 501 during vibration. The receiving box 6 is used to collect different particles after screening. The left receiving box 6 can collect smaller particles that slide out of the plate 503, and the right receiving box 6 can collect larger particles intercepted by the screen 504, thereby achieving classified storage of particles of different sizes for subsequent packaging or rework.
[0028] Specifically, such as Figure 4 As shown, the molding cylinder 3 is provided with an extrusion plate 7 inside, and the extrusion plate 7 is tightly attached to the inner wall of the molding cylinder 3. An electric push rod 8 is fixedly connected to the middle of the bottom of the molding cylinder 3, and the telescopic end of the electric push rod 8 is fixedly connected to the bottom of the extrusion plate 7.
[0029] Specifically, such as Figure 4 As shown, the surface of the forming cylinder 3 is provided with multiple forming holes 9, which are used in conjunction with the extrusion plate 7.
[0030] Specifically, such as Figure 5 As shown, a support ring 10 is fixedly sleeved on the surface of the forming cylinder 3, a reciprocating cylinder 11 is fixedly connected inside the support ring 10, a connecting plate 12 is fixedly connected to the telescopic end of the reciprocating cylinder 11, and a cutting blade 13 is fixedly connected to the bottom of the connecting plate 12.
[0031] Specifically, such as Figure 5 As shown, the top of the forming cylinder 3 is fixedly connected to the feed pipe 14, and the top of the feed pipe 14 is provided with a cap 15.
[0032] In this embodiment: With the above configuration, the extrusion plate 7 is tightly fitted to the inner wall of the forming cylinder 3, serving as the core component for raw material extrusion molding. The electric push rod 8, through its telescopic movement, can drive the extrusion plate 7 to move up and down within the forming cylinder 3. When the electric push rod 8 extends, the extrusion plate 7 pushes the organic fertilizer raw material within the forming cylinder 3 upwards, using extrusion pressure to force the raw material through the forming hole 9, thereby forming continuous strip-shaped material, laying the foundation for subsequent granulation. The thrust of the electric push rod 8 can be adjusted according to the characteristics of the raw material to ensure that the extruded material has suitable density and hardness, guaranteeing the stability of the molding effect. The forming hole 9 can be used in conjunction with the extrusion plate 7. When the extrusion plate 7 pushes the raw material, the raw material is extruded from the forming hole 9 under pressure, forming strip-shaped material with the same shape and size as the forming hole 9. The aperture and distribution density of the forming hole 9 can be designed according to production requirements to produce organic fertilizer granules that meet specifications. Its uniform distribution ensures the raw material... To ensure uniform extrusion and avoid localized material accumulation or insufficient extrusion, the support ring 10 provides a stable mounting base for the reciprocating cylinder 11. The telescopic end of the reciprocating cylinder 11 is connected to the cutting blade 13 via the connecting plate 12, which drives the cutting blade 13 to reciprocate. When the strip material is extruded from the forming hole 9, the cutting blade 13, driven by the reciprocating cylinder 11, can quickly cut the strip material into uniformly sized particles. The movement frequency of the cutting blade 13 can be matched with the material extrusion speed to ensure consistent particle length. The feed pipe 14 is the channel for conveying organic fertilizer raw materials into the forming cylinder 3. Its design facilitates continuous addition of raw materials and ensures continuous production. The cover 15 is located on the top of the feed pipe 14. When the equipment is not working or feeding needs to be paused, the cover 15 can be closed to prevent external impurities from entering the forming cylinder 3 and contaminating the raw materials. It can also reduce material overflow caused by extrusion during processing, ensuring the forming effect.
[0033] Working principle: First, open the cap 15 at the top of the feed pipe 14 and add the pre-treated organic fertilizer raw material into the forming cylinder 3 through the feed pipe 14. After completion, close the cap 15. Then, start the electric push rod 8 through the external control system, so that its telescopic end drives the extrusion plate 7 to move upward in the forming cylinder 3. Since the extrusion plate 7 is in close contact with the inner wall of the forming cylinder 3, the raw material is pushed towards the forming hole 9 on the surface of the forming cylinder 3 under the extrusion force, and finally extruded from the forming hole 9 to form a continuous strip material. At the same time, the reciprocating cylinder 11 on the support ring 10 is started, which drives the cutting blade 13 to perform high-frequency reciprocating motion through the connecting plate 12, cutting the extruded strip material into uniformly sized particles. The formed particles will fall off the surface of the forming cylinder 3 and enter the area between the inner cylinder 401 and the jacket layer 402. The electric heating block 404 in the jacket layer 402 is energized and heats up, so that the annular space between the inner cylinder 401 and the jacket layer 402 forms a high temperature. In the drying environment, the particles fall under the influence of gravity. When passing the inclined guide plate 405, their trajectory is guided into a tortuous path, prolonging their residence time in the drying space. This allows the particles to fully contact the hot air, accelerating moisture evaporation and achieving a rapid drying effect. Subsequently, the dried particles fall into the screening box 501 directly below. The vibration motor 505 is activated, and the screening box 501 vibrates under the drive of the vibration motor. The particles move within the screening box 501 under the vibration. Particles that meet the specifications fall through the screen 504 to the plate 503 below, and then through the plate 503 to the corresponding receiving box 6 through the left drop port 502. Oversized particles are intercepted by the screen 504 and then fall through the right drop port 502 to the corresponding receiving box 6. After screening, qualified particles and oversized particles that need to be reworked are taken out from the two receiving boxes 6, thus completing one production cycle.
[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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. An automatic organic fertilizer granule forming and screening device, comprising a base (1), characterized in that: The base (1) has two fixed supports (2) on both sides of its top, and a forming cylinder (3) is fixedly connected between the two supports (2). A drying component (4) is provided below the forming cylinder (3). A screening component (5) is fixedly connected to the top of the base (1) and the screening component (5) is located directly below the drying component (4). The drying component (4) includes an inner cylinder (401). The inner cylinder (401) is fixedly sleeved on the surface of the forming cylinder (3). A jacket layer (402) is sleeved on the surface of the inner cylinder (401). A connecting rod (403) is fixedly connected to both sides of the jacket layer (402) and the connecting rod (403) is fixedly connected to the support (2). An electric heating block (404) is installed inside the jacket layer (402). A guide plate (405) is fixedly connected between the inner cylinder (401) and the jacket layer (402) on the side that are close to each other. The guide plate (405) is inclined.
2. The automatic organic fertilizer granule forming and screening device according to claim 1, characterized in that: The filtering component (5) includes a filtering frame (501), which is located directly below the jacket layer (402). Both sides of the filtering frame (501) have drop openings (502).
3. The automatic organic fertilizer granule forming and screening device according to claim 2, characterized in that: A flat plate (503) is fixedly connected inside the left drop outlet (502), and a screen (504) is fixedly connected inside the right drop outlet (502). Both the flat plate (503) and the screen (504) are inclined.
4. The automatic organic fertilizer granule forming and screening device according to claim 2, characterized in that: A vibration motor (505) is fixedly installed at the bottom of the filter box (501), and the vibration motor (505) is located in the middle of the bottom of the filter box (501).
5. The automatic organic fertilizer granule forming and screening device according to claim 2, characterized in that: A fixed round block (506) is fixedly connected between the base (1) and the opposite side of the screening box (501), and a support spring (507) is fixedly connected between the two fixed round blocks (506).
6. The automatic organic fertilizer granule forming and screening device according to claim 2, characterized in that: The base (1) has two receiving boxes (6) fixedly connected to the top of each side, and the two receiving boxes (6) are used in conjunction with the two drop ports (502).
7. The automatic organic fertilizer granule forming and screening device according to claim 1, characterized in that: The molding cylinder (3) is provided with an extrusion plate (7) inside, and the extrusion plate (7) is tightly attached to the inner wall of the molding cylinder (3). An electric push rod (8) is fixedly connected to the middle of the bottom of the molding cylinder (3), and the telescopic end of the electric push rod (8) is fixedly connected to the bottom of the extrusion plate (7).
8. The automatic organic fertilizer granule forming and screening device according to claim 7, characterized in that: The surface of the forming cylinder (3) is provided with a plurality of forming holes (9), which are used in conjunction with the extrusion plate (7).
9. The automatic organic fertilizer granule forming and screening device according to claim 1, characterized in that: A support ring (10) is fixedly sleeved on the surface of the forming cylinder (3). A reciprocating cylinder (11) is fixedly connected inside the support ring (10). A connecting plate (12) is fixedly connected to the telescopic end of the reciprocating cylinder (11). A cutting blade (13) is fixedly connected to the bottom of the connecting plate (12).
10. The automatic organic fertilizer granule forming and screening device according to claim 1, characterized in that: The top of the forming cylinder (3) is fixedly connected to a feed pipe (14), and the top of the feed pipe (14) is provided with a cap (15).