Bio-organic fertilizer granule coating machine
The bio-organic fertilizer granule film coating machine, which combines spherical drum and hot air drying, solves the problems of inconvenient material discharge and complicated drying in existing equipment, realizes synchronous drying and automatic discharge of coated granules, and simplifies the operation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GULANG GENLIDO BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-26
AI Technical Summary
Existing bio-organic fertilizer granule coating equipment suffers from problems such as the horizontal drum structure which makes material discharge inconvenient and the lack of a drying system, leading to increased operational complexity.
A bio-organic fertilizer granule film coating machine is designed, which adopts a spherical drum structure and combines hot air drying and auxiliary discharge mechanism to realize the synchronous drying and automatic discharge of granules in the drum, simplifying the operation process.
It enables simultaneous drying and automatic discharge of coated granules, reducing the complexity of the production process and improving operational convenience and efficiency.
Smart Images

Figure CN224411664U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bio-organic fertilizer technology, and specifically discloses a bio-organic fertilizer granule microbial film coating machine. Background Technology
[0002] Bio-organic fertilizers are rich in functional microbial communities. After being applied to the soil, they can colonize and multiply extensively around plant roots, forming a dominant microbial community. This process can inhibit the invasion and reproduction of pathogens through spatial competition, reducing the incidence of crop diseases; it can also decompose organic matter through microbial metabolic activities, continuously releasing essential plant nutrients such as nitrogen, phosphorus, and potassium, achieving a long-term supply of fertilizer. In addition, the abundant organic matter in organic fertilizers can improve the physical structure of the soil, increase the proportion of aggregate structure, make the soil loose and porous, and improve water retention, fertilizer retention, and aeration, creating a suitable micro-ecological environment for crop root development. The microbial film coating technology of bio-organic fertilizer granules, by coating the surface of the granules with a microbial film composed of functional microorganisms and biodegradable materials, can significantly improve the survival rate of microorganisms during storage, transportation, and in the soil environment, while achieving controlled slow release of nutrients and enhanced stress resistance (such as resisting high soil salinity and acid-base stress). This technology not only ensures that beneficial microorganisms reach the crop rhizosphere with high activity, but also precisely regulates the release rhythm of microorganisms and nutrients through the directional degradation of membrane materials. It is one of the core technologies for promoting green agricultural production and reducing reliance on chemical fertilizers.
[0003] Currently, the industry primarily uses roller-type coating machines to coat organic fertilizer granules with liquid microbial agents. During operation, the rotating roller causes the granules to tumble, and a spraying device sprays the liquid microbial agent onto the granule surface to complete the coating.
[0004] However, existing equipment has two significant drawbacks: firstly, the horizontal drum structure is fixed, and its discharge port is generally located on the side of the drum. After coating, manual discharge with tools is required, which is extremely inconvenient; secondly, many machines lack a drying system, requiring the coated granules to be transferred to external drying equipment for further processing, increasing the complexity of the process. Therefore, a bio-organic fertilizer granule film coating machine is needed to solve these problems. Summary of the Invention
[0005] This invention proposes a bio-organic fertilizer granule microbial film coating machine, which facilitates the discharge of coated organic fertilizer granules and is simple and convenient to operate; it eliminates the need to transfer the coated granules to external drying equipment for processing, reducing the complexity of the process.
[0006] This utility model is implemented as follows: a biological organic fertilizer granule film coating machine includes a base plate, a spherical roller is arranged above the base plate, a material inlet is connected to the right side of the outer wall of the spherical roller, and a plurality of evenly distributed protrusions are fixedly connected to the inner wall of the spherical roller.
[0007] An auxiliary material discharge mechanism is provided on the upper side of the base plate. The auxiliary material discharge mechanism includes two vertical plates that are fixedly connected to the upper part of the base plate and distributed in front and behind. A steering wheel is rotatably connected to one side of each of the two vertical plates. A cylinder with an open structure on the right side is fixedly connected between the two steering wheels. A motor with its output end fixedly connected to one of the steering wheels is installed on the outer wall of one of the vertical plates. A stabilizing ring that is slidably connected to the inner wall of the cylinder is fixedly connected to the outer wall of the spherical roller.
[0008] A hot air delivery mechanism is provided on the left side inside the spherical drum. The hot air delivery mechanism includes a bearing that is fixedly connected to the left end of the drum body. A steel column is fixedly connected between the inner wall of the bearing and the left end of the outer side of the spherical drum. An air supply pipe communicating with the inside of the spherical drum is fixedly connected to the left end of the steel column. An L-shaped plate is fixedly connected to the left end of the drum body. A sealed rotary joint whose rotating end communicates with the air supply pipe is fixedly connected to the outer wall of the L-shaped plate. A mounting frame is fixedly connected to the left end of the L-shaped plate. A hot air blower whose air outlet end communicates with the fixed end of the sealed rotary joint is mounted on the outer wall of the mounting frame.
[0009] A drive mechanism is provided on the outside of the steel column;
[0010] A spraying mechanism is provided between the two vertical plates.
[0011] In a preferred embodiment of the bio-organic fertilizer granule film coating machine of this utility model, the driving mechanism includes a gear ring fixedly connected to the outer wall of a steel column, a gear meshing with the outer wall of the gear ring, a shaft fixedly connected to the gear and rotatably connected to the inner wall of the L-shaped plate, and a drive motor with its output end fixedly connected to the shaft and installed on the outer wall of the L-shaped plate.
[0012] As a preferred embodiment of the bio-organic fertilizer granule film coating machine of this utility model, the spraying mechanism includes a T-shaped groove formed on the upper part of the base plate. A T-shaped slider is slidably connected inside the T-shaped groove, abutting against the left end of its inner wall. A sliding plate is fixedly connected to the upper end of the T-shaped slider. A feeding pipe with a closed structure on the left side is installed at the left end of the sliding plate. The feeding pipe passes through the material inlet and extends into the interior of the spherical roller. Multiple evenly distributed atomizing nozzles are connected to the lower side of the outer wall of the feeding pipe. A pump with the discharge end connected to the feeding pipe is installed at the right end of the sliding plate.
[0013] As a preferred embodiment of the bio-organic fertilizer granule film coating machine of this utility model, the inner wall of the air supply pipe is equipped with a mesh plate.
[0014] As a preferred embodiment of the bio-organic fertilizer granule film coating machine of this utility model, the inner wall of the cylinder is provided with an annular sliding groove, and the annular sliding groove is slidably connected to an annular slide rail that is fixedly connected to the outer wall of the stabilizing ring.
[0015] In a preferred embodiment of the bio-organic fertilizer granule film coating machine of this utility model, the motor is a worm gear motor.
[0016] As a preferred embodiment of the bio-organic fertilizer granule film coating machine of this utility model, a push-pull handle is installed on the right end of the sliding plate.
[0017] The beneficial effects of this utility model are:
[0018] 1. Hot air generated by the hot air blower is input into the air supply pipe through a sealed rotary joint. The spherical drum rotates continuously, causing the granules to tumble. After the hot air comes into contact with the granules, it accelerates the evaporation of moisture and forms a dense bacterial film. The moisture is discharged directly through the feed port, so that the coated granules can be dried simultaneously inside the drum without the need to be transferred to external equipment, which effectively reduces the complexity of the production process.
[0019] 2. An auxiliary discharge mechanism drives the cylinder to rotate clockwise, causing the spherical roller to tilt as a whole through the stabilizing ring. The material inlet automatically adjusts to the downward position as the roller rotates, and the coated granules slide out autonomously under the action of gravity. The whole process does not require manual intervention or auxiliary tools, which significantly improves the convenience and efficiency of the discharge operation. Attached Figure Description
[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0021] Figure 1 This is a front sectional view of the overall structure of a bio-organic fertilizer granule microbial film coating machine according to this utility model;
[0022] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;
[0023] Figure 3 This is a partial right-side cross-sectional view of the present invention;
[0024] Figure 4 This is a partial structural diagram of the present invention;
[0025] Figure 5 This is a partial front cross-sectional view of the present invention.
[0026] The markings in the diagram are: 1. Base plate; 2. Spherical roller; 3. Vertical plate; 4. Steering wheel; 5. Cylinder body; 6. Raised strip; 7. Motor; 8. Bearing; 9. Steel column; 10. L-shaped plate; 11. Air supply pipe; 12. Mesh plate; 13. Sealing rotary joint; 14. Mounting bracket; 15. Hot air blower; 16. Gear ring; 17. Gear; 18. Shaft; 19. Drive motor; 20. Material inlet; 21. Stabilizing ring; 22. Sliding plate; 23. Pump; 24. Feed pipe. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.
[0028] Please see Figure 1-5 A biological organic fertilizer granule film coating machine includes a base plate 1, a spherical roller 2 is arranged above the base plate 1, a material inlet 20 is connected to the right side of the outer wall of the spherical roller 2, and a plurality of evenly distributed protrusions 6 are fixedly connected to the inner wall of the spherical roller 2.
[0029] An auxiliary material discharge mechanism is provided on the upper side of the base plate 1. The auxiliary material discharge mechanism includes two vertical plates 3 that are fixedly connected to the upper end of the base plate 1 and distributed in front and behind. A steering wheel 4 is rotatably connected to the opposite side of the two vertical plates 3. A cylinder 5 with an open structure on the right side is fixedly connected between the two steering wheels 4. A motor 7 with its output end fixedly connected to one of the steering wheels 4 is installed on the outer wall of one of the vertical plates 3. A stabilizing ring 21 that is slidably connected to the inner wall of the cylinder 5 is fixedly connected to the outer wall of the spherical roller 2.
[0030] A hot air delivery mechanism is provided on the left side inside the spherical roller 2. The hot air delivery mechanism includes a bearing 8 that is fixedly connected to the left end of the cylinder 5. A steel column 9 is fixedly connected between the inner wall of the bearing 8 and the left end of the outer side of the spherical roller 2. An air supply pipe 11 that communicates with the interior of the spherical roller 2 is fixedly connected to the left end of the steel column 9. An L-shaped plate 10 is fixedly connected to the left end of the cylinder 5. A sealed rotary joint 13 whose rotating end communicates with the air supply pipe 11 is fixedly connected to the outer wall of the L-shaped plate 10. A mounting frame 14 is fixedly connected to the left end of the L-shaped plate 10. A hot air blower 15 whose air outlet end communicates with the fixed end of the sealed rotary joint 13 is installed on the outer wall of the mounting frame 14.
[0031] A drive mechanism is installed on the outside of steel column 9;
[0032] A spraying mechanism is installed between the two vertical plates 3.
[0033] In this embodiment: When in use, organic fertilizer granules are loaded into the spherical roller 2 through the feed port 20 on the right side of the spherical roller 2, and then the spraying mechanism is adjusted to the left to a suitable position.
[0034] The power is then transmitted to the steel column 9 through the drive mechanism. The steel column 9 is fixedly connected to the left end of the cylinder 5 through the bearing 8. When it rotates, it drives the spherical roller 2 to rotate synchronously. The annular slide rail on the outer wall of the stabilizing ring 21 slides and engages with the annular slide groove on the inner wall of the cylinder 5 to ensure that the rotation process is stable and without deviation. When the spherical roller 2 rotates, it causes the particles to tumble. The inner wall protrusions 6 continuously lift and throw the particles, improving the tumbling effect of the particles. At the same time, the organic fertilizer particles are coated by the spraying mechanism.
[0035] After coating is completed, the spherical roller 2 continues to rotate. The hot air blower 15 is fixed by the mounting bracket 14. The hot air generated by the hot air blower 15 is input through the fixed end of the sealed rotary joint 13, and its rotating end is connected to the air supply pipe 11 to ensure that the hot air is continuously and stably supplied when the spherical roller 2 rotates. The mesh plate 12 can prevent particles from entering the air supply pipe 11. When the hot air comes into contact with the particles, it accelerates the evaporation of moisture in the bacterial agent and forms a dense bacterial film. Moisture will be discharged from the feed port 20, thereby achieving the purpose of reducing the complexity of the process by eliminating the need to transfer the coated particles to an external drying equipment for processing.
[0036] After coating and drying, the spraying mechanism is adjusted to the right to a position away from the spherical roller 2. The motor 7 of the auxiliary discharge mechanism is started, and its output end drives the steering wheel 4 to rotate clockwise, which in turn drives the cylinder 5 to rotate. The spherical roller 2 tilts synchronously with the cylinder 5 through the stabilizing ring 21, and the right-side material port 20 gradually faces downward. The particles inside the spherical roller 2 are directly discharged through the material port 20 under the action of gravity, without the need for manual assistance or tool intervention, thus achieving the purpose of conveniently discharging the coated organic fertilizer particles and making the operation simple and convenient.
[0037] As a technical optimization of this utility model, the drive mechanism includes a gear ring 16 fixedly connected to the outer wall of the steel column 9, a gear 17 meshing with the outer wall of the gear ring 16, a shaft 18 fixedly connected to the gear 17 rotatably connected to the inner wall of the L-shaped plate 10, and a drive motor 19 with its output end fixedly connected to the shaft 18 installed on the outer wall of the L-shaped plate 10.
[0038] In this embodiment: after the drive motor 19 starts, it drives the shaft 18 to rotate through the output shaft. The gear 17 on the shaft 18 meshes with the gear ring 16 on the outer wall of the steel column 9, transmitting power to the steel column 9 and driving the steel column 9 to rotate.
[0039] As a technical optimization of this utility model, the spraying mechanism includes a T-shaped groove opened on the upper end of the base plate 1. A T-shaped slider is slidably connected inside the T-shaped groove and abuts against the left end of its inner wall. A sliding plate 22 is fixedly connected to the upper end of the T-shaped slider. A feeding pipe 24 with a closed structure on the left side is installed on the left end of the sliding plate 22. The feeding pipe 24 passes through the material inlet 20 and extends into the interior of the spherical roller 2. Multiple evenly distributed atomizing nozzles are connected to the lower side of the outer wall of the feeding pipe 24. A pump 23 with the discharge end connected to the feeding pipe 24 is installed on the right end of the sliding plate 22.
[0040] In this embodiment: the sliding plate 22 is pushed to move to the left through the T-shaped slider and T-shaped groove at the bottom, which drives the feeding pipe 24 to go deeper into the interior of the spherical roller 2 along the material inlet 20 until the T-shaped slider abuts the left end of the inner wall of the T-shaped groove. At this time, multiple atomizing nozzles are in the appropriate position. After the pump 23 is started, the liquid bacterial agent is sucked from the storage device into the feeding pipe 24 and sprayed evenly onto the surface of the tumbling particles inside the roller through multiple atomizing nozzles on the lower side of the outer wall of the feeding pipe 24, thereby coating the organic fertilizer particles.
[0041] As a technical optimization of this utility model, a mesh plate 12 is installed on the inner wall of the air supply duct 11.
[0042] In this embodiment, the mesh plate 12 can prevent particles from entering the air supply duct 11.
[0043] As a technical optimization of this utility model, the inner wall of the cylinder 5 is provided with an annular groove, and the annular groove is slidably connected to an annular slide rail that is fixedly connected to the outer wall of the stabilizing ring 21.
[0044] In this embodiment, the stability of the spherical roller 2 is improved by setting an annular slide rail and an annular slide groove.
[0045] As a technical optimization of this utility model, motor 7 is a worm gear motor.
[0046] In this embodiment, motor 7 is a worm gear motor, which has a self-locking characteristic, thereby keeping the steering wheel 4 from rotating in the non-driving state, thus improving the stability of the spherical roller 2.
[0047] As a technical optimization of this utility model, a push-pull handle is installed on the right end of the sliding plate 22.
[0048] In this embodiment, a push-pull handle is provided to facilitate the push-pull operation of the sliding plate 22.
[0049] The working principle and usage process of this utility model are as follows: When in use, organic fertilizer granules are loaded into the spherical roller 2 through the feed port 20 on the right side of the spherical roller 2. Then, the sliding plate 22 is pushed to move to the left through the T-shaped slider and T-shaped groove at the bottom, which drives the feeding pipe 24 to go deeper into the spherical roller 2 along the feed port 20 until the T-shaped slider abuts against the left end of the inner wall of the T-shaped groove. At this time, multiple atomizing nozzles are in the appropriate position.
[0050] After the drive motor 19 starts, it drives the shaft 18 to rotate through the output shaft. The gear 17 on the shaft 18 meshes with the gear ring 16 on the outer wall of the steel column 9, transmitting power to the steel column 9. The steel column 9 is fixedly connected to the left end of the cylinder 5 through the bearing 8. When it rotates, it drives the spherical roller 2 to rotate synchronously. The annular slide rail on the outer wall of the stabilizing ring 21 slides with the annular slide groove on the inner wall of the cylinder 5 to ensure that the rotation process is stable and without deviation. When the spherical roller 2 rotates, it causes the particles to tumble. The inner wall protrusions 6 continuously lift and throw the particles, improving the tumbling effect of the particles.
[0051] After the pump 23 is started, the liquid bacterial agent is drawn from the storage device into the feeding pipe 24 and evenly sprayed onto the surface of the tumbling particles inside the drum through multiple atomizing nozzles on the lower side of the outer wall of the feeding pipe 24, thereby coating the organic fertilizer particles. During this process, the position of the sliding plate 22 needs to be kept unchanged.
[0052] After coating is completed, the spherical roller 2 continues to rotate. The hot air blower 15 is fixed by the mounting bracket 14. The hot air generated by the hot air blower 15 is input through the fixed end of the sealed rotary joint 13, and its rotating end is connected to the air supply pipe 11 to ensure that the hot air is continuously and stably supplied when the spherical roller 2 rotates. The mesh plate 12 can prevent particles from entering the air supply pipe 11. When the hot air comes into contact with the particles, it accelerates the evaporation of moisture in the bacterial agent and forms a dense bacterial film. Moisture will be discharged from the feed port 20.
[0053] After coating and drying, the feeding pipe 24 moves to the right and away from the spherical roller 2 along with the sliding plate 22. The motor 7 of the auxiliary discharge mechanism is started, and its output end drives the steering wheel 4 to rotate clockwise, which in turn drives the cylinder 5 to rotate. The spherical roller 2 tilts synchronously with the cylinder 5 through the stabilizing ring 21, and the right-side feed port 20 gradually faces downward. The particles in the spherical roller 2 are directly discharged through the feed port 20 under the action of gravity, without the need for manual assistance or tool intervention, thereby achieving the purpose of conveniently discharging the coated organic fertilizer particles and making the operation simple and convenient.
[0054] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0055] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.
Claims
1. A bio-organic fertilizer granule film coating machine, comprising a base plate (1), characterized in that: A spherical roller (2) is provided above the base plate (1). A material inlet (20) is connected to the right side of the outer wall of the spherical roller (2). A plurality of evenly distributed protrusions (6) are fixedly connected to the inner wall of the spherical roller (2). An auxiliary material discharge mechanism is provided on the upper side of the base plate (1). The auxiliary material discharge mechanism includes two vertical plates (3) that are fixedly connected to the upper end of the base plate (1) and distributed in front and behind. A steering wheel (4) is rotatably connected to the opposite side of the two vertical plates (3). A cylinder (5) with an open structure on the right side is fixedly connected between the two steering wheels (4). A motor (7) with its output end fixedly connected to one of the steering wheels (4) is installed on the outer wall of one of the vertical plates (3). A stabilizing ring (21) that is slidably connected to the inner wall of the cylinder (5) is fixedly connected to the outer wall of the spherical roller (2). A hot air delivery mechanism is provided on the left side inside the spherical roller (2). The hot air delivery mechanism includes a bearing (8) that is fixedly connected to the left end of the cylinder (5). A steel column (9) is fixedly connected between the inner wall of the bearing (8) and the left end of the outer side of the spherical roller (2). An air supply pipe (11) that communicates with the inside of the spherical roller (2) is fixedly connected to the left end of the steel column (9). An L-shaped plate (10) is fixedly connected to the left end of the cylinder (5). A sealed rotary joint (13) whose rotating end communicates with the air supply pipe (11) is fixedly connected to the outer wall of the L-shaped plate (10). A mounting bracket (14) is fixedly connected to the left end of the L-shaped plate (10). A hot air blower (15) whose air outlet end communicates with the fixed end of the sealed rotary joint (13) is installed on the outer wall of the mounting bracket (14). A drive mechanism is provided on the outside of the steel column (9); A spraying mechanism is provided between the two vertical plates (3).
2. The bio-organic fertilizer granule film coating machine according to claim 1, characterized in that: The drive mechanism includes a gear ring (16) fixedly connected to the outer wall of the steel column (9), a gear (17) meshing with the outer wall of the gear ring (16), a shaft (18) fixedly connected to the gear (17) rotatably connected to the inner wall of the L-shaped plate (10), and a drive motor (19) whose output end is fixedly connected to the shaft (18) installed on the outer wall of the L-shaped plate (10).
3. The bio-organic fertilizer granule film coating machine according to claim 1, characterized in that: The spraying mechanism includes a T-shaped groove on the upper end of the base plate (1). The T-shaped groove is slidably connected to a T-shaped slider that abuts against the left end of its inner wall. The upper end of the T-shaped slider is fixedly connected to a sliding plate (22). The left end of the sliding plate (22) is equipped with a feeding pipe (24) with a closed structure on the left side. The feeding pipe (24) passes through the material inlet (20) and extends into the interior of the spherical roller (2). The lower side of the outer wall of the feeding pipe (24) is connected to multiple evenly distributed atomizing nozzles. The right end of the sliding plate (22) is equipped with a pump (23) whose discharge end is connected to the feeding pipe (24).
4. The bio-organic fertilizer granule film coating machine according to claim 1, characterized in that: The inner wall of the air supply duct (11) is fitted with a mesh plate (12).
5. The bio-organic fertilizer granule film coating machine according to claim 1, characterized in that: The inner wall of the cylinder (5) is provided with an annular groove, and the annular groove is slidably connected to an annular slide rail that is fixedly connected to the outer wall of the stabilizing ring (21).
6. The bio-organic fertilizer granule film coating machine according to claim 1, characterized in that: The motor (7) is a worm gear motor.
7. A bio-organic fertilizer granule film coating machine according to claim 3, characterized in that: A push-pull handle is installed on the right end of the sliding plate (22).