Controlled-release coating device for granular water-soluble fertilizer

Abstract

The utility model discloses a controlled-release coating device for a granular water-soluble fertilizer in the technical field of fertilizer production. The controlled-release coating device comprises a coating box, an inclined material guide plate is arranged in the film coating box, and partition plates are fixed above the material guide plate and divide the material guide plate into a plurality of material guide grooves. A first cross beam, a second cross beam and a third cross beam are erected above the partition plate and are respectively provided with a spray head, a second air outlet and a third air outlet which correspond to the guide chute. A spraying box, a fan heater and an air blower are sequentially arranged on the top of the coating box side by side, the spraying box is communicated with the spray head through a first connecting pipe, the fan heater is communicated with the second air outlet through a second connecting pipe, and the air blower is communicated with the third air outlet through a third connecting pipe. The lower end of the feeding hopper is connected with a plurality of material distributing pipes, and lower end outlets of the material distributing pipes correspond to the material guiding grooves one to one. According to the utility model, the film coating efficiency is improved, the film coating effect is improved, and the production efficiency and quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of fertilizer production technology, and in particular to a controlled-release coating device for granular water-soluble fertilizer. Background Technology

[0002] In agricultural production, the use of granular water-soluble fertilizers is becoming increasingly widespread, but existing coating devices for granular water-soluble fertilizers have many problems. Currently, common coating devices have low coating efficiency, which cannot meet the needs of large-scale production. At the same time, the coating effect of these devices is not ideal, often resulting in uneven coating and easy peeling of the coating layer, seriously affecting the quality and efficacy of the water-soluble fertilizer. These problems not only limit the production efficiency of granular water-soluble fertilizers but also affect their market competitiveness. Therefore, there is an urgent need for a granular water-soluble fertilizer coating device that can improve coating efficiency and coating effect. Utility Model Content

[0003] The main objective of this invention is to provide a controlled-release coating device for granular water-soluble fertilizers to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A controlled-release coating device for granular water-soluble fertilizer includes a coating box with multiple legs at the bottom, a feeding hopper connected to the top of the coating box, and a discharge pipe connected to the bottom of the coating box. An inclined guide plate is provided inside the coating box, and a partition is fixedly installed above the guide plate, dividing the guide plate into multiple parallel feeding troughs. A first, second, and third crossbeam, parallel to each other and perpendicular to the partition, are mounted above the partition. The first, second, and third crossbeams are respectively equipped with nozzles, second air outlets, and third air outlets corresponding to the feeding troughs. A spray box, a heater, and a blower are arranged in parallel on the top of the coating box. The spray box is connected to the nozzles via a first connecting pipe, the heater is connected to the second air outlet via a second connecting pipe, and the blower is connected to the third air outlet via a third connecting pipe. Multiple distribution pipes are connected to the lower end of the feeding hopper, and the lower outlets of the distribution pipes correspond one-to-one with the feeding troughs.

[0006] Furthermore, a discharge port is provided at the end of the guide plate.

[0007] Furthermore, a vibration motor is fixedly installed at the bottom of the guide plate.

[0008] Furthermore, the first and second crossbeams are arranged in a group in the upstream section of the material flow of the guide chute, and the third crossbeam is arranged in the downstream section of the material flow of the guide chute.

[0009] Furthermore, an exhaust pipe is connected to the upper part of the side wall of the film-coated box.

[0010] This invention also includes other components that enable the controlled-release coating device of the granular water-soluble fertilizer to function properly. These devices or components all employ conventional techniques in the art. Furthermore, devices and components not specified in this invention all employ conventional techniques in the art, such as the vibration motor, heater, and blower mentioned in this application. In specific implementation, appropriate device or component models can be selected according to the specific working scenario.

[0011] The working principle of this invention is as follows: The granular water-soluble fertilizer to be coated enters the corresponding guide trough from each distribution pipe of the feeding hopper and rolls downwards along the inclined guide trough. During this process, the coating liquid in the spray box is sprayed out from the nozzle under the action of the delivery pump, evenly spraying it onto the outer surface of the granular water-soluble fertilizer. Simultaneously, warm air generated by the heater blows out from the second air outlet to dry the water-soluble fertilizer sprayed with the coating liquid, allowing the coating liquid to quickly solidify into a film. Subsequently, cold air blown out from the third air outlet by the blower cools the coated water-soluble fertilizer, lowering its temperature to room temperature, preparing it for subsequent screening and packaging. Through the inclined setting of the guide plate and the action of the vibrating motor, the granular water-soluble fertilizer can roll evenly in the guide trough, ensuring that the coating liquid, warm air, and cold air can fully contact the granules, thereby achieving an efficient coating and drying / cooling process.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. Significantly improved coating efficiency: Through the synergistic effect of the inclined guide plate, vibrating motor and multiple processes (spraying, drying and cooling), granular water-soluble fertilizer can quickly and uniformly complete coating, drying and cooling throughout the entire coating process, effectively solving the problem of low coating efficiency of existing equipment and significantly improving production efficiency;

[0014] 2. Significantly improved coating effect: The combination of the inclined guide plate and the vibrating motor makes the particles roll evenly in the guide trough, ensuring that the coating liquid can be sprayed fully and evenly on the particle surface; at the same time, the dual effect of warm air drying and cold air cooling makes the coating layer quickly solidify and adhere firmly, solving the problems of uneven coating and easy peeling of the coating layer in the existing device, and significantly improving the coating quality and stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure of this utility model.

[0016] Figure 2 This is a top view of the guide plate of this utility model.

[0017] Figure 3 This is a schematic diagram of the feeding hopper of this utility model.

[0018] In the diagram: 1. Support leg; 2. Coating box; 3. Guide plate; 31. Partition plate; 32. Guide trough; 33. Drop port; 4. Spraying box; 41. First connecting pipe; 42. Spray nozzle; 5. Warm air blower; 51. Second connecting pipe; 52. Second air outlet; 6. Blower; 61. Third connecting pipe; 62. Third air outlet; 7. First crossbeam; 8. Second crossbeam; 9. Third crossbeam; 10. Vibration motor; 11. Exhaust pipe; 12. Feeding hopper; 13. Distributing pipe; 14. Discharge pipe. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Example:

[0021] like Figures 1-3 As shown, a controlled-release coating device for granular water-soluble fertilizer includes a coating box 2 with multiple support legs 1 at the bottom. A feeding hopper 12 is connected to the top of the coating box 2, and a discharge pipe 14 is connected to the bottom of the coating box 2. An inclined guide plate 3 is provided inside the coating box 2. A partition plate 31 is fixedly installed above the guide plate 3, dividing the guide plate 3 into multiple parallel guide channels 32. A first crossbeam 7, a second crossbeam 8, and a third crossbeam 9 are erected above the partition plate 31, parallel to each other and perpendicular to the partition plate 31. The first crossbeam 7, the second crossbeam 8, and the third crossbeam 9 are respectively equipped with a nozzle 42, a second air outlet 52, and a third air outlet 62 corresponding to the guide channels 32. The top of the coating box 2 is equipped with a spraying box 4, a heater 5, and a blower 6 arranged in parallel. The spraying box 4 is connected to the spray nozzle 42 via a first connecting pipe 41. The heater 5 is connected to the second air outlet 52 via a second connecting pipe 51. The blower 6 is connected to the third air outlet 62 via a third connecting pipe 61. Multiple distribution pipes 13 are connected to the lower end of the feeding hopper 12, and the lower outlets of the distribution pipes 13 correspond one-to-one with the guide troughs 32.

[0022] Specifically, the first crossbeam 7 and the second crossbeam 8 are arranged together in the upstream section of the material flow of the guide chute 32, and the third crossbeam 9 is arranged in the downstream section of the material flow of the guide chute 32.

[0023] In addition, a vibration motor 10 is fixedly installed at the bottom of the guide plate 3. A material discharge port 33 is provided at the end of the guide plate 3. An exhaust pipe 11 is connected to the upper part of the side wall of the coating box 2.

[0024] The spray box 4 contains coating liquid, and a delivery pump is installed at the bottom of the spray box 4. The outlet of the delivery pump is connected to the first connecting pipe 41.

[0025] The working principle of this controlled-release coating device for granular water-soluble fertilizer is as follows: The granular water-soluble fertilizer to be coated enters the corresponding guide trough 32 from the feed hopper 12 through each of the distribution pipes 13, and rolls downward with the inclined guide trough 32. During this process, the coating liquid in the spray box 4 is sprayed out from the nozzle 42 under the action of the delivery pump, and is evenly sprayed onto the outer surface of the granular water-soluble fertilizer. At the same time, the warm air generated by the heater 5 blows out from the second air outlet 52 to dry the water-soluble fertilizer sprayed with coating liquid, so that the coating liquid can quickly solidify into a film. Subsequently, the cold air blown out by the blower 6 blows out from the third air outlet 62 to cool the coated water-soluble fertilizer, so that its temperature drops to room temperature, preparing it for subsequent screening and packaging. Through the inclined setting of the guide plate 3 and the action of the vibrating motor 10, the granular water-soluble fertilizer can roll evenly in the guide trough 32, ensuring that the coating liquid, warm air and cold air can fully contact the granules, thereby achieving an efficient coating and drying cooling process.

[0026] The above embodiments are merely descriptions of preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope of the present utility model.

Claims

1. A controlled-release coating device for granular water-soluble fertilizer, comprising a coating box (2) with multiple support legs (1) at the bottom, wherein a feeding hopper (12) is connected to the top of the coating box (2), and a discharge pipe (14) is connected to the bottom of the coating box (2), characterized in that: The coating box (2) is provided with an inclined guide plate (3). A partition (31) is fixedly installed above the guide plate (3). The partition (31) divides the guide plate (3) into multiple parallel guide grooves (32). A first crossbeam (7), a second crossbeam (8), and a third crossbeam (9) are erected above the partition (31) and are parallel to each other and perpendicular to the partition (31). The first crossbeam (7), the second crossbeam (8), and the third crossbeam (9) are respectively provided with a nozzle (42), a second air outlet (52), and a third air outlet corresponding to the guide groove (32). Air outlet (62); The top of the coating box (2) is arranged in parallel with a spray box (4), a heater (5) and a blower (6). The spray box (4) is connected to the nozzle (42) through a first connecting pipe (41). The heater (5) is connected to the second air outlet (52) through a second connecting pipe (51). The blower (6) is connected to the third air outlet (62) through a third connecting pipe (61). The lower end of the feeding hopper (12) is connected to multiple distribution pipes (13). The lower outlet of the distribution pipe (13) corresponds one-to-one with the guide trough (32).

2. The controlled-release coating device for granular water-soluble fertilizer according to claim 1, characterized in that: The guide plate (3) is provided with a discharge port (33) at its end.

3. The controlled-release coating device for granular water-soluble fertilizer according to claim 1, characterized in that: A vibration motor (10) is fixedly installed at the bottom of the guide plate (3).

4. The controlled-release coating device for granular water-soluble fertilizer according to claim 1, characterized in that: The first crossbeam (7) and the second crossbeam (8) are arranged in a group in the upstream section of the material flow of the guide trough (32), and the third crossbeam (9) is arranged in the downstream section of the material flow of the guide trough (32).

5. The controlled-release coating device for granular water-soluble fertilizer according to claim 1, characterized in that: An exhaust pipe (11) is connected to the upper part of the side wall of the packaging box (2).

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