A granule coating forming device

By designing the stirring and heating mechanisms of the granule coating forming device, the problems of uneven coating solution concentration and uneven particle heating were solved, achieving all-round coating without dead angles and the formation of a uniform coating layer, thus improving product quality.

CN224332088UActive Publication Date: 2026-06-09KANGTUOSEN (ZHUMADIAN) BIOTECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KANGTUOSEN (ZHUMADIAN) BIOTECHNOLOGY CO LTD
Filing Date
2025-07-16
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing granule coating equipment suffers from problems such as uneven coating solution concentration, inability to achieve all-round coating without dead angles, and uneven heating of granules during the drying process, which affect product quality.

Method used

A granule coating forming device was designed, comprising a first stirring mechanism, a second stirring mechanism, a conveying mechanism, and a heating mechanism. The device achieves uniform stirring of the coating liquid and all-round coating of the granules through a motor-driven stirring shaft and transmission mechanism. Combined with the uniform heating of the heater and heat-conducting pipe, it ensures uniform distribution of the coating liquid and uniform drying of the granules.

Benefits of technology

This achieves a uniform concentration of the coating solution, ensuring that each particle is fully exposed to the coating area, forming a uniform and robust coating layer, avoiding localized areas that are too thick or too thin, and improving product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to the technical field of granule production equipment, and discloses a granule coating forming device, including a functional box. A coating cylinder and a liquid storage tank are fixedly installed on the right side of the functional box, with the liquid storage tank located above the coating cylinder. A conveying cylinder is arranged below the coating cylinder. A partition is fixedly installed on the inner wall of the coating cylinder. A motor is fixedly installed on the inner wall of the left side of the functional box. A first stirring mechanism is arranged between the motor and the liquid storage tank. This application has the following advantages and effects: by setting a second stirring mechanism, it can ensure that each granule is fully exposed to the coating area, achieving all-round, dead-angle-free coating of the granules and avoiding local coatings that are too thick or too thin. By setting a heating mechanism and a conveying mechanism, it can achieve uniform heating of the granules, enabling the coating liquid on the surface of the granules to dry and solidify rapidly, forming a firm coating layer.
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Description

Technical Field

[0001] This application relates to the field of granule production equipment technology, and in particular to a granule coating forming device. Background Technology

[0002] Granule coating forming equipment is a device used to coat the surface of solid granule cores and form coated granules with specific functions through drying and curing. It is widely used in the fields of medicine, pesticides, fertilizers, and food. Its core is to form a uniform and stable coating layer on the surface of the granules through coating material to achieve functions such as moisture protection, slow release, and isolation.

[0003] In practical use, we have found that existing granule coating forming devices have many problems: the coating solution in traditional devices often undergoes component stratification or precipitation due to standing, resulting in uneven coating solution concentration and inconsistent granule coating thickness, affecting product quality; during the coating process, insufficient stirring of granules makes it difficult for some granules to be fully exposed to the coating area, causing local coating defects or excessive thickness, failing to achieve all-round, dead-angle-free coating; in addition, the heating mechanism of some devices is uneven, and the granules are heated unevenly during the drying process, which not only affects the curing effect of the coating layer, but may also cause changes in the properties of the granules themselves. Therefore, we propose a granule coating forming device to solve the above problems. Utility Model Content

[0004] The purpose of this application is to address the shortcomings of existing technologies, such as uneven coating liquid concentration, which prevents the achievement of all-round, dead-angle-free coating, and uneven heating of particles during the drying process, which affects the curing effect of the coating layer. Therefore, a particle coating forming device is proposed.

[0005] The above-mentioned technical objective of this application is achieved through the following technical solution: a granule coating forming device, comprising a functional box, a coating cylinder and a storage tank fixedly installed on the right side of the functional box, the storage tank being located above the coating cylinder, a conveying cylinder being arranged below the coating cylinder, a partition being fixedly installed on the inner wall of the coating cylinder, a motor being fixedly installed on the inner wall of the left side of the functional box, a first stirring mechanism being arranged between the motor and the storage tank, a common feeding pipe being arranged between the coating cylinder and the conveying cylinder, and a solenoid valve being arranged on the feeding pipe; a second stirring mechanism being arranged inside the coating cylinder, a coating mechanism being arranged at the bottom of the partition, a feeding pipe being arranged at the top of the coating cylinder, the bottom end of the feeding pipe penetrating the bottom of the partition, a conveying mechanism being arranged inside the conveying cylinder, a heater being arranged on the right side of the coating cylinder, a heating mechanism being arranged between the heater and the conveying cylinder, a discharge pipe being arranged on the bottom right side of the conveying cylinder, a rotating shaft being rotatably installed on the inner wall of the left side of the functional box, the rotating shaft being located below the motor, the right end of the rotating shaft extending into the coating cylinder, and a partition being located below the rotating shaft.

[0006] A further configuration of this application is as follows: the first stirring mechanism includes a first stirring shaft and a first stirring rod. The first stirring shaft is fixedly mounted on the motor output shaft. The right end of the first stirring shaft is rotatably connected to the inner wall of the right side of the liquid storage tank. The first stirring rod is provided on the first stirring shaft and is located inside the liquid storage tank. A first transmission mechanism is provided between the first stirring shaft and the rotating shaft.

[0007] By adopting the above technical solution and by setting a first stirring mechanism, the first stirring rod can continuously stir the coating liquid in the storage tank, which can prevent the coating liquid from separating or precipitating due to standing, ensure the uniform concentration of the coating liquid, and provide a stable raw material for subsequent uniform coating.

[0008] A further configuration of this application is as follows: the first transmission mechanism includes two first transmission wheels and a first transmission belt. The first transmission wheels are fixedly sleeved on both the first stirring shaft and the rotating shaft. The first transmission wheels are located inside the functional box, and the same first transmission belt is sleeved on both first transmission wheels.

[0009] By adopting the above technical solution and by setting a first transmission mechanism, the first stirring shaft can drive the rotating shaft to rotate synchronously.

[0010] A further configuration of this application is as follows: the second stirring mechanism includes a second stirring shaft and a second stirring rod. The second stirring shaft is rotatably mounted on the inner wall of the top of the coating cylinder. The bottom end of the second stirring shaft extends to below the partition plate. A second stirring rod is provided on the second stirring shaft. The second stirring rod is located below the partition plate. A gear mechanism is provided between the second stirring shaft and the rotating shaft.

[0011] By adopting the above technical solution and by setting a second stirring mechanism, the second stirring rod can rotate inside the coating cylinder, thereby ensuring that each particle is fully exposed to the coating area.

[0012] A further feature of this application is that the gear mechanism includes two bevel gears, and bevel gears are fixedly sleeved on both the second stirring shaft and the right end of the rotating shaft. The bevel gears are located above the partition plate, and the two bevel gears mesh with each other.

[0013] By adopting the above technical solution and by setting a gear mechanism, the rotating shaft can drive the second stirring shaft to rotate synchronously.

[0014] A further configuration of this application is as follows: the conveying mechanism includes a conveying shaft and a spiral blade, the same conveying shaft is rotatably mounted on the left inner wall of the functional box and the right inner wall of the conveying cylinder, the conveying shaft is located below the rotating shaft, the spiral blade is provided on the conveying shaft, the spiral blade is located inside the conveying cylinder, and a second transmission mechanism is provided between the conveying shaft and the rotating shaft.

[0015] By adopting the above technical solution and by setting up a conveying mechanism, the conveying shaft can drive the spiral blades to rotate, which can push the particles to move slowly to the right along the inner wall of the conveying cylinder by the spiral blades, thereby extending the residence time of the particles in the conveying cylinder.

[0016] A further configuration of this application is: the second transmission mechanism includes two second transmission wheels and a second transmission belt, with the second transmission wheels fixedly sleeved on both the conveying shaft and the rotating shaft, the second transmission wheels being located to the left of the first transmission wheel, and the same second transmission belt being sleeved on both second transmission wheels.

[0017] By adopting the above technical solution and by setting a second transmission mechanism, the rotating shaft can drive the conveying shaft to rotate synchronously.

[0018] A further feature of this application is that the heating mechanism includes a heating plate and a heat-conducting pipe, a heating plate is provided at the top of the conveying cylinder, the heating plate is located on the right side of the feeding pipe, and the same heat-conducting pipe is provided between the heating plate and the heater.

[0019] By adopting the above technical solution and by setting up a heating mechanism, the heat generated by the heater is transferred to the heating plate through the heat conduction pipe. The heating plate can uniformly heat the particles in the conveying cylinder, so as to achieve the purpose of quickly drying and solidifying the coating liquid on the surface of the particles to form a strong coating layer.

[0020] A further configuration of this application is as follows: the coating mechanism includes an annular atomizer, an atomizing nozzle, and an infusion tube; the annular atomizer is provided at the bottom of the partition, the atomizing nozzle is provided at the bottom of the annular atomizer, and the same infusion tube is provided between the annular atomizer and the storage tank.

[0021] By adopting the above technical solution and by setting up a coating mechanism, the coating liquid in the storage tank can flow into the annular atomizer through the infusion pipe under the action of gravity and the pressure generated by stirring. It can be atomized into fine droplets by the atomizing nozzle and sprayed evenly on the surface of the rolling particles from the annular direction, thereby achieving the purpose of coating the particles.

[0022] The beneficial effects of this application are:

[0023] (1) Through the cooperation of the motor, the first stirring shaft and the first stirring rod, the motor can drive the first stirring rod to continuously stir the coating liquid in the storage tank, which can prevent the coating liquid from stratifying or precipitating due to standing, ensure the uniform concentration of the coating liquid, and provide a stable raw material for subsequent uniform coating.

[0024] (2) Through the cooperation of the first transmission wheel, the first transmission belt, the rotating shaft, the bevel gear, the second stirring shaft and the second stirring rod, the first stirring shaft can drive the second stirring shaft to rotate synchronously, the second stirring rod can rotate inside the coating cylinder, and each particle can be fully exposed to the coating area, and the particles can be coated in all directions without dead angles, avoiding the purpose of local coating being too thick or too thin.

[0025] (3) Through the cooperation of the second drive wheel, the second drive belt, the conveying shaft and the spiral blade, the second stirring shaft can drive the conveying shaft to rotate synchronously, the spiral blade can push the particles to move slowly to the right along the inner wall of the conveying cylinder, the particles can extend the residence time in the conveying cylinder, the particles can be heated evenly, and the coating liquid on the surface of the particles can be dried and solidified quickly to form a strong coating layer. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a three-dimensional structural schematic diagram of a granule coating forming device according to this application;

[0028] Figure 2 This is a schematic diagram of the internal structure of the storage tank and coating cylinder of a granule coating forming device according to this application;

[0029] Figure 3 This is a schematic diagram of the internal structure of the functional box, the liquid storage tank, and the coating cylinder of a granule coating forming device according to this application;

[0030] Figure 4 This is a schematic diagram of the internal structure of the conveyor cylinder of a granule coating forming device according to this application.

[0031] In the diagram: 1. Functional box; 101. Motor; 2. Coating cylinder; 201. Feed pipe; 202. Second stirring shaft; 203. Second stirring rod; 3. Storage tank; 301. First stirring shaft; 302. First stirring rod; 4. Conveying cylinder; 401. Discharge pipe; 402. Conveying shaft; 403. Spiral blade; 5. Baffle plate; 501. Feed pipe; 6. Annular atomizer; 601. Atomizing nozzle; 602. Infusion pipe; 7. Rotating shaft; 701. First transmission wheel; 702. First transmission belt; 703. Bevel gear; 704. Second transmission wheel; 705. Second transmission belt; 8. Heater; 801. Heating plate; 802. Heat conducting pipe. Detailed Implementation

[0032] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0033] See Figures 1-4 This application provides a granule coating forming device, including a functional box 1. A coating cylinder 2 and a liquid storage tank 3 are fixedly installed on the right side of the functional box 1. The liquid storage tank 3 is located above the coating cylinder 2. A conveying cylinder 4 is arranged below the coating cylinder 2. A partition 5 is fixedly installed on the inner wall of the coating cylinder 2. A motor 101 is fixedly installed on the inner wall of the left side of the functional box 1. A first stirring mechanism is arranged between the motor 101 and the liquid storage tank 3. A common feed pipe 201 is arranged between the coating cylinder 2 and the conveying cylinder 4. A solenoid valve is installed on the feed pipe 201. The coating cylinder 2 contains... A second stirring mechanism is provided. A coating mechanism is provided at the bottom of the partition 5. A feed pipe 501 is provided at the top of the coating cylinder 2. The bottom end of the feed pipe 501 passes through the bottom of the partition 5. A conveying mechanism is provided inside the conveying cylinder 4. A heater 8 is provided on the right side of the coating cylinder 2. A heating mechanism is provided between the heater 8 and the conveying cylinder 4. A discharge pipe 401 is provided on the bottom right side of the conveying cylinder 4. A rotating shaft 7 is rotatably installed on the left inner wall of the functional box 1. The rotating shaft 7 is located below the motor 101. The right end of the rotating shaft 7 extends into the coating cylinder 2. The partition 5 is located below the rotating shaft 7.

[0034] Specifically, the first stirring mechanism includes a first stirring shaft 301 and a first stirring rod 302. The first stirring shaft 301 is fixedly installed on the output shaft of the motor 101. The right end of the first stirring shaft 301 is rotatably connected to the inner wall of the right side of the storage tank 3. The first stirring rod 302 is provided on the first stirring shaft 301 and is located inside the storage tank 3. A first transmission mechanism is provided between the first stirring shaft 301 and the rotating shaft 7.

[0035] Specifically, the first transmission mechanism includes two first transmission wheels 701 and a first transmission belt 702. The first transmission wheels 701 are fixedly sleeved on both the first stirring shaft 301 and the rotating shaft 7. The first transmission wheels 701 are located inside the functional box 1, and the same first transmission belt 702 is sleeved on the two first transmission wheels 701.

[0036] Specifically, the second stirring mechanism includes a second stirring shaft 202 and a second stirring rod 203. The second stirring shaft 202 is rotatably mounted on the inner wall of the top of the coating cylinder 2. The bottom end of the second stirring shaft 202 extends to below the partition plate 5. The second stirring rod 203 is provided on the second stirring shaft 202 and is located below the partition plate 5. A gear mechanism is provided between the second stirring shaft 202 and the rotating shaft 7.

[0037] Specifically, the gear mechanism includes two bevel gears 703. Both the second stirring shaft 202 and the right end of the rotating shaft 7 are fixedly fitted with bevel gears 703. The bevel gears 703 are located above the partition plate 5, and the two bevel gears 703 mesh with each other.

[0038] Specifically, the conveying mechanism includes a conveying shaft 402 and a spiral blade 403. The same conveying shaft 402 is rotatably mounted on the left inner wall of the functional box 1 and the right inner wall of the conveying cylinder 4. The conveying shaft 402 is located below the rotating shaft 7. The spiral blade 403 is provided on the conveying shaft 402 and is located inside the conveying cylinder 4. A second transmission mechanism is provided between the conveying shaft 402 and the rotating shaft 7.

[0039] Specifically, the second transmission mechanism includes two second transmission wheels 704 and a second transmission belt 705. The second transmission wheels 704 are fixedly sleeved on both the conveying shaft 402 and the rotating shaft 7. The second transmission wheels 704 are located to the left of the first transmission wheel 701, and the same second transmission belt 705 is sleeved on both second transmission wheels 704.

[0040] Specifically, the heating mechanism includes a heating plate 801 and a heat-conducting pipe 802. The heating plate 801 is installed on the top of the conveying cylinder 4. The heating plate 801 is located on the right side of the feed pipe 201. The same heat-conducting pipe 802 is installed between the heating plate 801 and the heater 8.

[0041] Specifically, the coating mechanism includes an annular nebulizer 6, an atomizing nozzle 601, and an infusion tube 602. The annular nebulizer 6 is located at the bottom of the partition 5, and the atomizing nozzle 601 is located at the bottom of the annular nebulizer 6. The same infusion tube 602 is provided between the annular nebulizer 6 and the liquid storage tank 3.

[0042] In this application, during operation, after the motor 101 starts, its output shaft drives the first stirring shaft 301 to rotate within the storage tank 3, and the first stirring rod 302 rotates synchronously. This enables continuous stirring of the coating liquid within the storage tank 3, preventing component stratification or precipitation due to static standing, ensuring uniform concentration of the coating liquid, and providing a stable raw material for subsequent uniform coating. Simultaneously, the first stirring shaft 301 drives the rotating shaft through the transmission action of the first transmission wheel 701 and the first transmission belt 702. 7 rotates, and the bevel gear 703 at the right end of the rotating shaft 7 can mesh with the bevel gear 703 on the second stirring shaft 202, which can drive the second stirring shaft 202 and the second stirring rod 203 to rotate in the coating cylinder 2; when the coated particles enter the area below the partition 5 of the coating cylinder 2 through the feed pipe 501, they can form a tumbling flow under the stirring of the second stirring rod 203, which can ensure that each particle is fully exposed in the coating area; the coating liquid in the storage tank 3 is subjected to the action of gravity and the pressure generated by stirring. The liquid can flow into the annular atomizer 6 through the infusion pipe 602, and be atomized into fine droplets by the atomizing nozzle 601. This is then evenly sprayed onto the surface of the tumbling particles from an annular direction, achieving comprehensive, seamless coating and preventing excessively thick or thin coatings in certain areas. The coated particles can then enter the conveying cylinder 4 through the feeding pipe 201 (whose opening and closing time is precisely controlled by a solenoid valve to match the particle coating progress). The rotating shaft 7 can drive the conveying shaft 402 and... The rotation of the spiral blade 403 can push the particles to move slowly to the right along the inner wall of the conveying cylinder 4, thereby extending the residence time of the particles in the conveying cylinder. At the same time, the heat generated by the heater 8 is transferred to the heating plate 801 through the heat conduction pipe 802. The heating plate 801 can uniformly heat the particles in the conveying cylinder 4, thereby enabling the coating liquid on the surface of the particles to dry and solidify quickly, forming a strong coating layer. Finally, the fully solidified coated particles are discharged through the discharge pipe 401.

Claims

1. A granule coating forming device, characterized in that, The device includes a functional box (1), on the right side of which a coating cylinder (2) and a liquid storage tank (3) are fixedly installed. The liquid storage tank (3) is located above the coating cylinder (2). A conveying cylinder (4) is provided below the coating cylinder (2). A partition (5) is fixedly installed on the inner wall of the coating cylinder (2). A motor (101) is fixedly installed on the inner wall of the left side of the functional box (1). A first stirring mechanism is provided between the motor (101) and the liquid storage tank (3). A common feed pipe (201) is provided between the coating cylinder (2) and the conveying cylinder (4). A solenoid valve is provided on the feed pipe (201). The coating cylinder (2) is provided with a second stirring mechanism. The bottom of the partition plate (5) is provided with a coating mechanism. The top of the coating cylinder (2) is provided with a feed pipe (501). The bottom end of the feed pipe (501) passes through the bottom of the partition plate (5). The conveying cylinder (4) is provided with a conveying mechanism. The right side of the coating cylinder (2) is provided with a heater (8). A heating mechanism is provided between the heater (8) and the conveying cylinder (4). The bottom right side of the conveying cylinder (4) is provided with a discharge pipe (401). The left inner wall of the functional box (1) is rotatably mounted with a rotating shaft (7). The rotating shaft (7) is located below the motor (101). The right end of the rotating shaft (7) extends into the coating cylinder (2). The partition plate (5) is located below the rotating shaft (7).

2. The granule coating forming apparatus according to claim 1, characterized in that: The first stirring mechanism includes a first stirring shaft (301) and a first stirring rod (302). The first stirring shaft (301) is fixedly installed on the output shaft of the motor (101). The right end of the first stirring shaft (301) is rotatably connected to the inner wall of the right side of the storage tank (3). The first stirring rod (302) is provided on the first stirring shaft (301). The first stirring rod (302) is located inside the storage tank (3). A first transmission mechanism is provided between the first stirring shaft (301) and the rotating shaft (7).

3. The granule coating forming apparatus according to claim 2, characterized in that: The first transmission mechanism includes two first transmission wheels (701) and a first transmission belt (702). The first transmission wheels (701) are fixedly sleeved on the first stirring shaft (301) and the rotating shaft (7). The first transmission wheels (701) are located inside the functional box (1). The same first transmission belt (702) is sleeved on the two first transmission wheels (701).

4. The granule coating forming device according to claim 1, characterized in that: The second stirring mechanism includes a second stirring shaft (202) and a second stirring rod (203). The second stirring shaft (202) is rotatably mounted on the inner wall of the top of the coating cylinder (2). The bottom end of the second stirring shaft (202) extends to below the partition plate (5). The second stirring rod (203) is provided on the second stirring shaft (202). The second stirring rod (203) is located below the partition plate (5). A gear mechanism is provided between the second stirring shaft (202) and the rotating shaft (7).

5. The granule coating forming apparatus according to claim 4, characterized in that: The gear mechanism includes two bevel gears (703). The second stirring shaft (202) and the right end of the rotating shaft (7) are both fixedly fitted with bevel gears (703). The bevel gears (703) are located above the partition plate (5), and the two bevel gears (703) mesh with each other.

6. The granule coating forming apparatus according to claim 1, characterized in that: The conveying mechanism includes a conveying shaft (402) and a spiral blade (403). The same conveying shaft (402) is rotatably mounted on the left inner wall of the functional box (1) and the right inner wall of the conveying cylinder (4). The conveying shaft (402) is located below the rotating shaft (7). A spiral blade (403) is provided on the conveying shaft (402). The spiral blade (403) is located inside the conveying cylinder (4). A second transmission mechanism is provided between the conveying shaft (402) and the rotating shaft (7).

7. The granule coating forming apparatus according to claim 6, characterized in that: The second transmission mechanism includes two second transmission wheels (704) and a second transmission belt (705). The second transmission wheels (704) are fixedly sleeved on both the conveying shaft (402) and the rotating shaft (7). The second transmission wheels (704) are located to the left of the first transmission wheel (701). The two second transmission wheels (704) are sleeved on the same second transmission belt (705).

8. The granule coating forming apparatus according to claim 1, characterized in that: The heating mechanism includes a heating plate (801) and a heat-conducting pipe (802). The heating plate (801) is provided on the top of the conveying cylinder (4). The heating plate (801) is located on the right side of the feeding pipe (201). The same heat-conducting pipe (802) is provided between the heating plate (801) and the heater (8).

9. The granule coating forming apparatus according to claim 1, characterized in that: The coating mechanism includes an annular atomizer (6), an atomizing nozzle (601), and an infusion tube (602). The bottom of the partition (5) is provided with an annular atomizer (6), the bottom of the annular atomizer (6) is provided with an atomizing nozzle (601), and the same infusion tube (602) is provided between the annular atomizer (6) and the liquid storage tank (3).