Fertilizer slow-release coating device

Abstract

The utility model discloses a fertilizer slow-release coating device, which belongs to the technical field of fertilizer particle processing and comprises a stirring outer barrel, a stirring inner barrel, a circulating component, a spraying component and a backflow bin. Fertilizer is added into the backflow bin from the feeding port and gathered to the auger blade from the backflow port, the fertilizer is conveyed upwards through rotation of the auger blade and enters the backflow bin through the multiple discharging ports to be circulated, a coating agent is sprayed into the backflow bin, and then the surface of the fertilizer can be coated; through arrangement of a backflow bin, a small amount of fertilizer can enter the backflow bin, the surface of the fertilizer can be coated more quickly, through rotation of an auger blade, the fertilizer at the bottom can be conveyed into the backflow bin as well, and a coating agent enters a discharging pipe, a collecting pipe and a connecting pipe through a conveying pump; and finally, the coating agent is sprayed downwards and obliquely downwards through the coating agent spray head, so that the fertilizer particles can be coated.

Description

Technical Field

[0001] The utility model belongs to the technical field of fertilizer particle processing, and in particular relates to a fertilizer slow-release coating device. Background Art

[0002] Granular compound fertilizers are a recognized and reliable solution to the current problem of rapid nutrient release and inability to act on crops over a long period of time. Slow-release fertilizer granules are typically coated with a biodegradable coating. Water penetrates through this coating, evenly dissolving the nutrients within the granules. These dissolved nutrients then seep out of the coating as the external environment changes, resulting in even nutrient distribution and stable, long-lasting fertilizer effects, which can promote high crop yields.

[0003] For example, Chinese utility model patent CN215886865U discloses a fertilizer coating device, comprising a coating component and a driving component, wherein the coating component comprises a spiral blade and a conveying member, and the conveying member is used to convey the coating agent into the body; the driving component comprises a driving member and a transmission member, and magnetic members are respectively installed on the surfaces of the driving member and the transmission member. By adding fertilizer into the body and turning on the driving member, the driving member drives the transmission member to rotate through the magnetic member, and the transmission member drives the spiral blade to rotate. Under the action of the magnetic member, the transmission member can drive the spiral blade on its surface to intermittently change speed, thereby mixing the fertilizer and the coating agent, and avoiding the destruction of the structure of the compound fertilizer particles under rapid stirring. The conveying member can add the coating agent into the body, so that the coating liquid can be evenly coated on the surface of the compound fertilizer particles, thereby improving the coating effect of the fertilizer.

[0004] Although the above-mentioned prior art can avoid destroying the structure of the fertilizer particles, the sprayed coating agent cannot quickly and evenly coat the fertilizer particles, so that a long period of stirring is required to evenly coat the coating machine and the fertilizer particles, which reduces the coating efficiency. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] In order to solve the problem proposed in the above background technology that the sprayed coating agent cannot be quickly and evenly coated with the fertilizer particles, so that a long time of stirring is required to evenly coat the coating machine and the fertilizer particles, thereby reducing the coating work efficiency, the utility model adopts the following technical solution.

[0007] A fertilizer slow-release coating device includes a stirring outer barrel, a plurality of supporting legs are fixedly connected to the bottom of the stirring outer barrel, a sealing top cover is detachably connected to the upper end of the stirring outer barrel, a feed port is provided on the sealing top cover, a discharge pipe is provided on the outer wall of the stirring outer barrel near the bottom, a stirring inner barrel is provided inside the stirring outer barrel, a reflux bin is provided between the stirring inner barrel and the stirring outer barrel, a reflux port is provided between the bottom of the stirring inner barrel and the bottom of the stirring outer barrel, a plurality of discharge ports are provided on the outer wall of the stirring inner barrel near the upper end, a circulation component is installed inside the stirring inner barrel, the circulation component enables the fertilizer to move upward, a plurality of diversion blocks are fixedly connected between the stirring outer barrel and the stirring inner barrel, each diversion block is located below each discharge port, a spire is provided on the upper end of the diversion block, a spraying component is installed at the bottom of the stirring outer barrel, and the spraying component sprays the coating agent into the interior of the reflux bin.

[0008] Preferably, inclined surfaces are provided on both sides of the diverter block near the bottom, and a plurality of coating agent nozzles are provided on the inclined surfaces on both sides and the bottom of the diverter block.

[0009] Preferably, the feed port is communicated with the reflux bin.

[0010] Preferably, a funnel groove is provided at the inner bottom of the mixing outer barrel, a filter screen is fixedly connected to the inner wall of the funnel groove near the upper end, the solenoid valve passes through the funnel groove and is connected to the bottom of the filter screen, and the end of the discharge pipe near the filter screen is detachably connected to the solenoid valve.

[0011] Preferably, the circulation component includes a drive motor and an auger blade, the upper end of the sealing top cover is detachably connected to the drive motor, the rotating end of the drive motor is inserted into the sealing top cover, and the transmission end of the drive motor is detachably connected to the auger blade.

[0012] Preferably, the spray assembly includes a liquid storage tank, a discharge pipe, a delivery pump, a collecting pipe and a connecting pipe. The bottom of the mixing outer barrel is detachably connected to the liquid storage tank, and the liquid storage tank has a built-in delivery pump. The output end of the delivery pump is detachably connected to the discharge pipe, and the end of the discharge pipe is fixedly connected to the collecting pipe. The collecting pipe is sleeved on the outer wall of the mixing outer barrel, and the inner wall of the collecting pipe is fixedly connected to multiple connecting pipes inserted into the reflux bin, and each connecting pipe is connected to the coating agent nozzle on each diversion block.

[0013] Preferably, one side of the outer wall of the liquid storage tank is connected with a reflux pipe, and the reflux pipe is connected with the inner bottom of the funnel groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The driving motor is set to rotate to drive the auger blade to rotate, and the fertilizer is added into the interior of the reflux bin from the feed port and gathered from the reflux port to the auger blade. The fertilizer is transported upward by the rotation of the auger blade and enters the interior of the reflux bin through multiple discharge ports for circulation. The coating agent is sprayed into the interior of the reflux bin, and the surface of the fertilizer can be coated. The setting of the reflux bin allows a small amount of fertilizer to enter the reflux bin, which can coat the surface of the fertilizer faster. Through the rotation of the auger blade, the fertilizer at the bottom can also be transported to the interior of the reflux bin for coating, so that the coating effect is better.

[0016] 2. The provided spire can make the fertilizer flow from the discharge port into the interior of the reflux bin and then separate to both sides by contacting the spire of the diversion block, thereby making the fertilizer coating more uniform. The coating agent is placed in the liquid storage tank, and the coating agent is sent into the discharge pipe, the collecting pipe and the connecting pipe through the delivery pump, and finally sprayed downward and obliquely downward through the coating agent nozzle, thereby coating the fertilizer particles.

[0017] 3. By opening the electromagnetic valve, the coated fertilizer can be transported outward through the discharge pipe. The excess coating agent can be filtered through the filter and then flowed down for storage. The filtered coating agent can be returned to the interior of the liquid storage tank through the reflux pipe through the funnel trough, so that the excess coating agent can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a fertilizer slow-release coating device in the present utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the outer mixing barrel and the inner mixing barrel in the present invention;

[0020] Figure 3 This is a schematic diagram of the diversion block structure in the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the liquid storage tank in the utility model.

[0022] The corresponding relationship between the illustration labels and component names in the figure is as follows:

[0023] 100, mixing drum; 101, feed port; 102, sealing cover; 103, support legs; 104, discharge pipe; 105, drive motor; 106, auger blade; 107, solenoid valve; 108, funnel trough; 109, filter screen;

[0024] 200, mixing inner barrel; 201, reflux chamber; 202, reflux port; 203, diversion block; 204, connecting pipe; 205, collecting pipe; 206, inclined surface; 207, coating agent nozzle; 208, reflux pipe; 209, liquid storage tank; 210, discharge pipe; 211, discharge port. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0028] like Figure 1 As shown, it is a structural schematic diagram of a fertilizer slow-release coating device of a preferred embodiment of the present invention. The fertilizer slow-release coating device of this embodiment includes a stirring outer barrel 100, and a plurality of supporting legs 103 are fixedly connected to the bottom of the stirring outer barrel 100. The upper end of the stirring outer barrel 100 is detachably connected to a sealing top cover 102, and a feed port 101 is provided on the sealing top cover 102. A discharge pipe 104 is provided on the outer wall of the stirring outer barrel 100 near the bottom. In this embodiment, the fertilizer particles to be included are added into the interior of the stirring outer barrel 100 from the feed port 101, and are discharged outward from the discharge pipe 104 for collection after coating.

[0029] like Figure 2As shown, it is a schematic diagram of the cross-sectional structure of the stirring outer barrel and the stirring inner barrel in this embodiment, the stirring outer barrel 100 is provided with a stirring inner barrel 200, a reflux bin 201 is provided between the stirring inner barrel 200 and the stirring outer barrel 100, a reflux port 202 is provided between the bottom of the stirring inner barrel 200 and the bottom of the stirring outer barrel 100, a plurality of discharge ports 211 are provided on the outer wall of the stirring inner barrel 200 near the upper end, the upper end of the sealing top cover 102 is detachably connected to the driving motor 105, the rotating end of the driving motor 105 is inserted into the sealing top cover 102, the transmission end of the driving motor 105 is detachably connected to the auger blade 106, the feed port 101 is connected to the reflux bin 201, and in this embodiment, the driving motor 105 is started. The rotation of the motor 105 drives the auger blade 106 to rotate, adding the fertilizer from the feed port 101 to the interior of the reflux bin 201 and converging it from the reflux port 202 to the auger blade 106. The fertilizer is transported upward by the rotation of the auger blade 106, enters the interior of the reflux bin 201 through multiple discharge ports 211 for circulation, and the coating agent is sprayed into the interior of the reflux bin 201, thereby coating the surface of the fertilizer. The setting of the reflux bin 201 allows a small amount of fertilizer to enter the reflux bin 201, which can coat the surface of the fertilizer faster. Through the rotation of the auger blade 106, the fertilizer at the bottom can also be transported to the interior of the reflux bin 201 for coating, so that the coating effect is better.

[0030] It is worth noting that the above-mentioned drive motor 105 and auger blade 106 are circulation components in this embodiment. The circulation components include but are not limited to the drive motor 105 and auger blade 106. As long as it is a component that can transport fertilizer upward, it can be applied to this embodiment.

[0031] like Figure 2 As shown, a funnel groove 108 is provided at the inner bottom of the mixing outer barrel 100, and a filter screen 109 is fixedly connected to the inner wall of the funnel groove 108 near the upper end. The solenoid valve 107 passes through the funnel groove 108 and is connected to the bottom of the filter screen 109. The end of the discharge pipe 104 near the filter screen 109 is detachably connected to the solenoid valve 107. In this embodiment, by opening the solenoid valve 107, the coated fertilizer can be transported outward through the discharge pipe 104. Through the setting of the filter screen 109, the excess coating agent can be filtered and stored downstream for secondary utilization.

[0032] like Figure 3 As shown, it is a schematic diagram of the diverter block structure in this embodiment. A plurality of diverter blocks 203 are fixedly connected between the mixing outer barrel 100 and the mixing inner barrel 200. Each diverter block 203 is located below each discharge port 211. A pointed top is provided on the upper end of the diverter block 203. In this embodiment, the pointed top can enable the fertilizer to flow from the discharge port 211 into the interior of the reflux bin 201 and then contact the pointed top of the diverter block 203 to separate to both sides, thereby enabling the fertilizer to be coated more evenly.

[0033] like Figure 4 As shown, it is a schematic diagram of the liquid storage tank structure in this embodiment. The bottom of the mixing outer barrel 100 is detachably connected to a liquid storage tank 209, and the liquid storage tank 209 has a built-in delivery pump. The output end of the delivery pump is detachably connected to a discharge pipe 210, and the end of the discharge pipe 210 is fixedly connected to a collecting pipe 205. The collecting pipe 205 is sleeved on the outer wall of the mixing outer barrel 100, and the inner wall of the collecting pipe 205 is fixedly connected to a plurality of connecting pipes 204 inserted into the reflux bin 201. The two sides of the diverter block 203 near the bottom are provided with inclined surfaces 206, and the inclined surfaces 206 on both sides and the bottom of the diverter block 203 are provided with a plurality of coating agent nozzles 207 connected to the connecting pipes 204. In this embodiment, the coating agent is placed in the liquid storage tank 209, and the coating agent is sent into the discharge pipe 210, the collecting pipe 205 and the connecting pipe 204 by the delivery pump, and finally sprayed downward and obliquely downward through the coating agent nozzle 207, so that the fertilizer particles can be coated.

[0034] It is worth noting that the above-mentioned liquid storage tank 209, discharge pipe 210, delivery pump, collecting pipe 205 and connecting pipe 204 are the spraying components in this embodiment. The spraying components include but are not limited to the liquid storage tank 209, discharge pipe 210, delivery pump, collecting pipe 205 and connecting pipe 204. As long as it is a component that can spray the coating agent into the reflux bin 201, it can be used in this embodiment.

[0035] like Figure 4 As shown, a reflux pipe 208 is connected to one side of the outer wall of the liquid storage tank 209, and the reflux pipe 208 is connected to the inner bottom of the funnel groove 108. In this embodiment, the filtered coating agent can be returned to the interior of the liquid storage tank 209 through the reflux pipe 208 through the funnel groove 108, so that the excess coating agent can be reused.

[0036] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the concept of the present invention, which should be regarded as falling within the scope of protection determined by the claims submitted for the present invention.

Claims

1. A fertilizer slow-release coating device, comprising a stirring outer barrel (100), wherein a plurality of supporting legs (103) are fixedly connected to the bottom of the stirring outer barrel (100), a sealing top cover (102) is detachably connected to the upper end of the stirring outer barrel (100), a feeding port (101) is provided on the sealing top cover (102), and a discharge pipe (104) is provided on the outer wall of the stirring outer barrel (100) near the bottom, characterized in that: The stirring outer barrel (100) is provided with a stirring inner barrel (200), a reflux bin (201) is provided between the stirring inner barrel (200) and the stirring outer barrel (100), a reflux port (202) is provided between the bottom of the stirring inner barrel (200) and the bottom of the stirring outer barrel (100), a plurality of discharge ports (211) are provided on the outer wall of the stirring inner barrel (200) near the upper end, a circulation component is installed inside the stirring inner barrel (200), and the circulation component enables the fertilizer to move upward, a plurality of diverter blocks (203) are fixedly connected between the stirring outer barrel (100) and the stirring inner barrel (200), each diverter block (203) is located below each discharge port (211), and a pointed top is provided at the upper end of the diverter block (203), and a spraying component is installed at the bottom of the stirring outer barrel (100), and the spraying component sprays the coating agent into the reflux bin (201).

2. The fertilizer slow-release coating device according to claim 1, characterized in that: Inclined surfaces (206) are provided on both sides of the diverter block (203) near the bottom, and a plurality of coating agent nozzles (207) are provided on the inclined surfaces (206) on both sides and the bottom of the diverter block (203).

3. The fertilizer slow-release coating device according to claim 2, characterized in that: The feed port (101) is communicated with the reflux bin (201).

4. The fertilizer slow-release coating device according to claim 3, characterized in that: A funnel groove (108) is provided at the inner bottom of the mixing outer barrel (100), and a filter screen (109) is fixedly connected to the inner wall of the funnel groove (108) near the upper end. The solenoid valve (107) passes through the funnel groove (108) and is connected to the bottom of the filter screen (109). The end of the discharge pipe (104) near the filter screen (109) is detachably connected to the solenoid valve (107).

5. The fertilizer slow-release coating device according to claim 4, characterized in that: The circulation component comprises a driving motor (105) and an auger blade (106); the upper end of the sealing top cover (102) is detachably connected to the driving motor (105); the rotating end of the driving motor (105) is inserted into the sealing top cover (102); and the transmission end of the driving motor (105) is detachably connected to the auger blade (106).

6. The fertilizer slow-release coating device according to claim 5, characterized in that: The spraying assembly comprises a liquid storage tank (209), a discharge pipe (210), a delivery pump, a manifold (205) and a connecting pipe (204); the bottom of the mixing outer barrel (100) is detachably connected to the liquid storage tank (209); the liquid storage tank (209) has a built-in delivery pump; the output end of the delivery pump is detachably connected to the discharge pipe (210); the end of the discharge pipe (210) is fixedly connected to the manifold (205); the manifold (205) is sleeved on the outer wall of the mixing outer barrel (100); the inner wall of the manifold (205) is fixedly connected to a plurality of connecting pipes (204) inserted into the interior of the reflux bin (201); each connecting pipe (204) is communicated with a coating agent nozzle (207) on each diversion block (203).

7. The fertilizer slow-release coating device according to claim 6, characterized in that: One side of the outer wall of the liquid storage box (209) is connected to a reflux pipe (208), and the reflux pipe (208) is connected to the inner bottom of the funnel groove (108).

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