Compound fertilizer coating machine

By designing a compound fertilizer coating machine with a combination structure of rollers, discharge hoppers, and brushes, the problem of uneven coating caused by clumping was solved, achieving uniform coating and agent recovery, thus improving coating quality and fertilizer utilization.

CN223921325UActive Publication Date: 2026-02-17HUBEI ZHUANGYUAN FERTILIZER IND CO LTD
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Patent Information

Application Number
CN202520379058.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-02-17
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

Existing compound fertilizer coating machines are prone to uneven coating due to fertilizer clumping and uneven mixing of coating agents, which affects the coating effect. At the same time, the deposition of redundant coating agents can lead to the mixing of compound fertilizer particles, which reduces the coating quality.

Method used

A compound fertilizer coating machine was designed, which adopts a combination structure of rollers, discharge hopper, coating plate and brush. The rollers break up the clumps of fertilizer, and the brush assists in spraying the coating agent. Combined with the filter screen of the discharge hopper, excess agent is recovered to ensure uniform coating.

Benefits of technology

It effectively breaks up clumps of fertilizer, improves the uniformity of coating, reduces waste of coating agent, ensures the coating effect of compound fertilizer, and improves fertilizer utilization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a compound fertilizer coating machine which comprises a coating box, one side of the outer wall of the coating box is fixedly connected with an equipment box, one side of the outer wall of the equipment box is fixedly connected with a motor, a motor driving shaft penetrates through the coating box and is fixedly connected with a first rolling shaft, and the bottom of the coating box is fixedly connected with a discharging hopper. One end of the top of the coating box is fixedly connected with a liquid storage box and a feeding hopper, one side of the outer wall of the coating box is fixedly connected with a three-way pipe, one end of the three-way pipe is fixedly connected with a pump body, and the other end of the three-way pipe is fixedly connected with a flow dividing pipe. According to the utility model, the rollers, the discharge hopper, the film coating plate and the bristles are matched with one another, the caked compound fertilizer can be scattered through the plurality of rotating rollers, and the bristles on the two sides are used for assisting the compound fertilizer in coating a film coating agent, so that the film coating effect of the compound fertilizer can be conveniently improved, and meanwhile, the excessive film coating agent can be discharged from the discharge hopper; and after being recycled and filtered, the compound fertilizer is put into use, so that the coating effect of the compound fertilizer is ensured.
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Description

Technical Field

[0001] This utility model relates to the technical field of compound fertilizer packaging equipment, specifically a compound fertilizer coating machine.

[0002] Background Technology

[0003] Compound fertilizer coating technology can improve fertilizer utilization. By forming a film on the surface of the compound fertilizer, the release rate and amount of nutrients can be controlled, ensuring that nutrients are released promptly when crops need them. This avoids the nutrient loss problem caused by the excessively rapid dissolution of traditional compound fertilizers, thus greatly improving fertilizer utilization and reducing waste. Compound fertilizer coating can effectively improve fertilizer utilization, reduce nutrient loss, and promote crop growth, offering advantages such as environmental friendliness and sustainability.

[0004] Currently available compound fertilizer coating machines often experience uneven coating due to fertilizer clumping, affecting the coating effect. Additionally, a large amount of coating agent becomes redundant during the mixing process and settles down for continued use. This residue can easily mix with some compound fertilizer particles, resulting in the coating layer being contaminated with compound fertilizer during subsequent coating processes, thus affecting the film's effectiveness.

[0005] Therefore, we propose to design a compound fertilizer coating machine. Utility Model Content

[0006] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] A compound fertilizer coating machine includes a coating box, an equipment box is fixedly connected to one side of the outer wall of the coating box, a motor is fixedly connected to one side of the outer wall of the equipment box, the motor drive shaft passes through the coating box and is fixedly connected to a first roller, and a discharge hopper is fixedly connected to the bottom of the coating box.

[0009] A liquid storage tank and a feed hopper are fixedly connected to one end of the top of the coating box. A three-way pipe is fixedly connected to one side of the outer wall of the coating box. A pump body is fixedly connected to one end of the three-way pipe, and a diverter pipe is fixedly connected to the other end of the three-way pipe. Coating plates are fixedly connected to both sides of the inner wall of the coating box. An atomizing nozzle is fixedly connected to the side of the coating plate near the first roller.

[0010] In a preferred embodiment of the compound fertilizer coating machine described in this utility model, a first sprocket is fixedly connected to the outer wall of the motor drive shaft, and a second sprocket is connected to the bearing near the bottom of the inner wall of the equipment box. A chain is meshed with the outer walls of the first and second sprockets. A second roller is fixedly connected to the second sprocket at the bottom of the first roller. By setting multiple rotating rollers, the clumps of compound fertilizer can be broken up, improving the coating effect of the compound fertilizer. At the same time, it is convenient for the compound fertilizer to move closer to the coating plate, so that the coating agent can come into contact with the compound fertilizer for coating.

[0011] As a preferred embodiment of the compound fertilizer coating machine of this utility model, the outer wall of the first roller is provided with a plurality of strip grooves, which are evenly distributed in a ring around the first roller to improve the friction on the outside of the roller and facilitate better application of compound fertilizer to the coating plate.

[0012] In a preferred embodiment of the compound fertilizer coating machine described in this utility model, a plurality of atomizing nozzles are provided, and the plurality of atomizing nozzles are arranged in a rectangular array to facilitate the atomization and spraying of the coating agent onto the roller to coat the compound fertilizer around the roller.

[0013] In a preferred embodiment of the compound fertilizer coating machine described in this utility model, the coating plate has a cavity inside that corresponds to the atomizing nozzle, and a brush is fixedly connected to the side of the coating plate near the first roller. After the coating agent is sprayed out, part of it will wet the brush and brush the compound fertilizer through the brush, which facilitates the coating of the compound fertilizer.

[0014] In a preferred embodiment of the compound fertilizer coating machine described in this utility model, the pump body's liquid extraction end penetrates the storage tank and is connected to its interior, while the pump body's liquid discharge end is connected to a three-way pipe. The coating agent in the storage tank can be extracted by the pump body and distributed to the coating plates on both sides by the three-way pipe.

[0015] In a preferred embodiment of the compound fertilizer coating machine described in this utility model, both sides of the inner wall of the discharge hopper are provided with leakage filter screens, the discharge hopper is provided with a recovery chamber corresponding to the leakage filter screen, and the discharge hopper is provided with a drain port corresponding to the recovery chamber. When the compound fertilizer falls onto the leakage filter screen, it can roll directly down, while the excess coating agent can enter the recovery chamber along the leakage filter screen for storage, and then be uniformly discharged and recycled through the drain port.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention utilizes the cooperation of rollers, a discharge hopper, a coating plate, and brush bristles. Multiple rotating rollers can break up clumps of compound fertilizer, while the brush bristles on both sides assist in applying a coating agent to the compound fertilizer, thus improving the coating effect. Excess coating agent can be discharged from the discharge hopper, recycled, filtered, and reused, thereby ensuring the coating effect of the compound fertilizer. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is a schematic diagram of the appearance of a compound fertilizer coating machine according to the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of a compound fertilizer coating machine according to the present invention;

[0021] Figure 3 This is a schematic diagram of the first roller structure of a compound fertilizer coating machine according to the present invention;

[0022] Figure 4 This is a schematic diagram of the coating plate structure of a compound fertilizer coating machine according to the present invention.

[0023] Legend: 1. Coating box; 2. Equipment box; 3. Motor; 4. First roller; 401. Strip groove; 5. First sprocket; 6. Second sprocket; 7. Chain; 8. Second roller; 9. Discharge hopper; 10. Storage tank; 11. Feed hopper; 12. T-connector; 13. Pump body; 14. Diverter pipe; 15. Coating plate; 16. Atomizing nozzle; 17. Brush bristles; 18. Leakage filter screen; 19. Drain outlet. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0027] Please see Figure 1-4 This utility model provides a compound fertilizer coating machine, including a coating box 1, an equipment box 2 fixedly connected to one side of the outer wall of the coating box 1, a motor 3 fixedly connected to one side of the outer wall of the equipment box 2, a drive shaft of the motor 3 passing through the coating box 1 and fixedly connected to a first roller 4, and a discharge hopper 9 fixedly connected to the bottom of the coating box 1.

[0028] The discharge hopper 9 has a leakage filter screen 18 on both sides of its inner wall. The discharge hopper 9 has a recovery chamber corresponding to the leakage filter screen 18 inside and a drain port 19 corresponding to the recovery chamber outside. When the compound fertilizer falls on the leakage filter screen 18, it can roll directly down, while the excess coating agent can enter the recovery chamber along the leakage filter screen 18 for storage and then be discharged and recovered through the drain port 19.

[0029] In this embodiment, a plurality of strip grooves 401 are provided on the outer side wall of the first roller 4. The plurality of strip grooves 401 are evenly distributed in a ring around the first roller 4, which facilitates the increase of the friction on the outside of the roller and facilitates the better application of compound fertilizer to the coating plate 15.

[0030] In this embodiment, a first sprocket 5 is fixedly connected to the outer wall of the drive shaft of the motor 3, and a second sprocket 6 is connected to the bearing near the bottom of the inner wall of the equipment box 2. The outer walls of the first sprocket 5 and the second sprocket 6 are meshed with a chain 7. A second roller 8 is fixedly connected to the second sprocket 6 at the bottom of the first roller 4. By setting multiple rotating rollers, the clumps of compound fertilizer can be broken up, improving the coating effect of the compound fertilizer. At the same time, it is convenient for the compound fertilizer to move closer to the coating plate 15, so that the coating agent can contact the compound fertilizer for coating.

[0031] A liquid storage tank 10 and a feed hopper 11 are fixedly connected to one end of the top of the coating box 1. A three-way pipe 12 is fixedly connected to one side of the outer wall of the coating box 1. A pump body 13 is fixedly connected to one end of the three-way pipe 12, and a diverter pipe 14 is fixedly connected to the other end of the three-way pipe 12. Coating plates 15 are fixedly connected to both sides of the inner wall of the coating box 1.

[0032] The pump body 13 has a liquid extraction end that penetrates the storage tank 10 and is connected to its interior. The pump body 13 has a liquid discharge end that is connected to the three-way pipe 12. The pump body 13 can extract the coating agent from the storage tank 10 and distribute it to the coating plates 15 on both sides through the three-way pipe 12.

[0033] An atomizing nozzle 16 is fixedly connected to the side of the coating plate 15 near the first roller 4.

[0034] The coating plate 15 has a cavity inside that corresponds to the atomizing nozzle 16. A brush bristle 17 is fixedly connected to the side of the coating plate 15 near the first roller 4. After the coating agent is sprayed out, part of it will wet the brush bristle 17. The brush bristle 17 will brush over the compound fertilizer, making it easier to coat the compound fertilizer.

[0035] In this embodiment, a plurality of atomizing nozzles 16 are provided, and the plurality of atomizing nozzles 16 are arranged in a rectangular array to facilitate the atomization of the coating agent and spraying it onto the roller to coat the compound fertilizer around the roller.

[0036] When in use, connect the motor 3 and pump body 13 to an external power source, fill the storage tank 10 with a sufficient amount of coating agent, and distribute it through the three-way pipe 12 to the cavities in the coating plates 15 on both sides of the inner wall of the coating box 1 via the pump body 13. Then, when the pump body 13 is started, the coating agent can be sprayed out through several atomizing nozzles 16 on the plate surface.

[0037] First, start motor 3 to drive the first roller 4 to rotate. At the same time, use chain 7 to drive the second roller 8 to rotate. Then start pump body 13 to spray coating agent into coating box 1.

[0038] Subsequently, the compound fertilizer to be coated is added to the coating box 1 through the feed hopper 11. The compound fertilizer falls on the rotating first roller 4 and second roller 8 and gradually spreads to both sides, which makes it easier to break up the clumped compound fertilizer.

[0039] During the descent, the coating agent comes into contact with and mixes with the coating agent sprayed from both sides to form a coating. At the same time, the coating agent wets the dense bristles 17, which then sweep across the outside of the compound fertilizer to facilitate further coating of the compound fertilizer.

[0040] Finally, the compound fertilizer falls onto the discharge hopper 9 and is discharged downwards, while the excess coating agent can enter the recovery chamber through the leakage filter 18 for storage, and can then be discharged and recovered uniformly through the drain port 19.

[0041] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A compound fertilizer coating machine comprising a coating box (1), characterized in that, The equipment box (2) is fixedly connected to one side of the outer wall of the envelope box (1), the motor (3) is fixedly connected to one side of the outer wall of the equipment box (2), the driving shaft of the motor (3) penetrates through the envelope box (1) and is fixedly connected with the first roller shaft (4), and the envelope box (1) is fixedly connected with the discharge hopper (9) at the bottom. The envelope box (1) is fixedly connected with the liquid storage tank (10) and the feeding hopper (11) at one end of the top, the envelope box (1) is fixedly connected with the three-way pipe (12) at one side of the outer wall, the three-way pipe (12) is fixedly connected with the pump body (13) at one end, the three-way pipe (12) is fixedly connected with the shunt pipe (14) at the other end, the envelope box (1) is fixedly connected with the envelope plate (15) at both sides of the inner wall, and the envelope plate (15) is fixedly connected with the atomizing nozzle (16) at the side close to the first roller shaft (4).

2. The compound fertilizer coating machine according to claim 1, characterized in that, The first sprocket (5) is fixedly connected to the outer side wall of the driving shaft of the motor (3), the second sprocket (6) is connected with the bearing at the inner wall of the equipment box (2) close to the bottom, the outer side walls of the first sprocket (5) and the second sprocket (6) are jointly connected with the chain (7) in meshing mode, and the second roller shaft (8) fixedly connected with the second sprocket (6) is arranged at the bottom of the first roller shaft (4).

3. The compound fertilizer coating machine according to claim 1, characterized in that, A plurality of strip-shaped grooves (401) are arranged on the outer side wall of the first roller shaft (4) in a ring shape.

4. The compound fertilizer coating machine according to claim 1, characterized in that, A plurality of atomizing nozzles (16) are arranged in a rectangular array.

5. The compound fertilizer coating machine according to claim 1, characterized in that, The envelope plate (15) is internally provided with a cavity corresponding to the atomizing nozzle (16), and the envelope plate (15) is fixedly connected with the bristles (17) at the side close to the first roller shaft (4).

6. The compound fertilizer coating machine according to claim 1, characterized in that, The pump body (13) penetrates through the liquid storage tank (10) at the liquid suction end and is connected with the inside of the liquid storage tank (10), and the liquid discharge end of the pump body (13) is correspondingly connected with the three-way pipe (12).

7. The compound fertilizer coating machine according to claim 1, characterized in that, The liquid leakage filter screen (18) is arranged at both sides of the inner wall of the discharge hopper (9), the discharge hopper (9) is internally provided with a recovery cavity corresponding to the liquid leakage filter screen (18), and the discharge hopper (9) is externally provided with a liquid discharge port (19) corresponding to the recovery cavity.