Slow-release fertilizer coating device

Abstract

The utility model relates to the technical field of coating devices, and provides a slow-release fertilizer coating device which comprises a base and further comprises a box body, a feeding hopper is fixedly installed at the top of the box body, a notch communicated with the interior of the box body is formed in the side wall of the box body, and coating liquid is contained at the bottom of the box body; the opening direction of the filtering frame is upward, the middle of the filtering frame is rotationally connected with the inner wall of the notch, a plurality of filtering holes are formed in the bottom of the filtering frame, the first side of the filtering frame is located in the box body, and the second side of the filtering frame is located outside the box body; a discharge hole communicated with the interior of the filter frame is formed in the second side of the filter frame; the motor is fixedly mounted on the box body and is used for controlling the filter frame to rotate. The slow-release fertilizer coating device provided by the utility model has the advantages that the coating is more uniform, and the discharging speed is higher.

Description

Technical Field

[0001] This utility model relates to the field of coating device technology, specifically to a slow-release fertilizer coating device. Background Technology

[0002] Fertilizers are substances that provide one or more essential nutrients for plants, improve soil properties, and enhance soil fertility. In recent years, fertilizer runoff and inefficient use have led to serious resource waste and enormous economic losses. More importantly, they have caused severe pollution to human health, the atmosphere, soil, and food crops. To address this problem, slow-release fertilizers have been invented. These are fertilizers coated with a protective film to slow the release of nutrients, allowing crops to continuously absorb and utilize them.

[0003] Wrapping fertilizer with a protective film requires a coating device. Most current coating devices spray the coating solution onto the fertilizer. This method has the following problems: 1. Uneven coating; fertilizer in the middle has difficulty making extensive contact with the coating solution. 2. Low discharge speed; coated fertilizer needs to be manually removed, as automatic discharge is not possible. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a slow-release fertilizer coating device that provides more uniform coating and faster discharge speed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a slow-release fertilizer coating device, comprising a base, and further comprising:

[0006] The box has a feed hopper fixedly installed on its top, a notch communicating with its interior is opened on the side wall of the box, and a coating liquid is filled at the bottom of the box.

[0007] The filter frame has an opening facing upwards, and its middle part is rotatably connected to the inner wall of the notch. The bottom of the filter frame has multiple filter holes. The first side of the filter frame is located inside the box, and the second side of the filter frame is located outside the box. The second side of the filter frame has a discharge port communicating with its interior.

[0008] An electric motor is fixedly mounted on the housing and is used to control the rotation of the filter frame.

[0009] Furthermore, it also includes a blocking mechanism, which includes a guide rail, a baffle, and a connecting rod. The guide rail is longitudinally disposed above the notch and is fixedly connected to the inner wall of the housing. The baffle is disposed on the guide rail and is slidably connected to the guide rail. The two ends of the connecting rod are respectively hinged to the filter frame and the baffle.

[0010] Furthermore, the filter frame is adapted to the inner wall of the housing.

[0011] Furthermore, the top of the filter frame has a downwardly inclined and inwardly extending guide surface, which is located inside the housing.

[0012] Furthermore, it also includes a receiving box, which is placed on the base and located directly below the discharge port.

[0013] Furthermore, it also includes multiple conveyor rollers, which are arranged at intervals and are all rotatably connected to the base, and the conveyor rollers are in contact with the receiving box.

[0014] The beneficial effects of this invention are as follows: This invention provides a slow-release fertilizer coating device. Fertilizer granules fall into the filter frame through the feed hopper and are immersed in the coating solution to complete the coating process. Compared with the traditional method of spraying the coating solution onto the fertilizer granules, the coating is more uniform. After coating is completed, the motor starts and drives the filter frame to swing until the first side of the filter frame is higher than the second side. At this point, the coated fertilizer granules will automatically be discharged from the outlet, resulting in a faster discharge speed. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention from a first-view perspective;

[0016] Figure 2 This is a three-dimensional structural diagram of the present invention from a second perspective;

[0017] Figure 3 This is a top view of the structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the box;

[0019] Figure 5 This is a schematic diagram of the internal three-dimensional structure of the box.

[0020] Reference numerals: 10-base, 11-transmitter roller, 20-box, 21-feed hopper, 22-notch, 30-filter frame, 31-filter hole, 32-discharge port, 33-guide surface, 40-motor, 50-blocking mechanism, 51-guide rail, 52-baffle, 53-connecting rod, 60-receiving box. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In this application, unless otherwise expressly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In the description of this application, it should be understood that the terms "longitudinal", "horizontal", "level", "top", "bottom", "upper", "lower", "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0025] like Figures 1-5 As shown, this utility model provides a slow-release fertilizer coating device, including a base 10 and a control cabinet, as well as a housing 20, a filter frame 30 and a motor 40.

[0026] A feed hopper 21 is fixedly installed on the top of the housing 20, and the feed hopper 21 communicates with the interior of the housing 20. A notch 22 communicating with the interior is opened on the side wall of the housing 20, and the bottom of the housing 20 is filled with coating liquid.

[0027] The filter frame 30 has an upward-facing opening. The middle part of the filter frame 30 is rotatably connected to the inner wall of the notch 22. The bottom of the filter frame 30 has multiple longitudinally penetrating filter holes 31. The first side of the filter frame 30 is located inside the housing 20, and the second side of the filter frame 30 is located outside the housing 20. The second side of the filter frame 30 has a discharge port 32 that communicates with its interior.

[0028] The motor 40 is fixedly mounted on the housing 20 and is used to control the rotation of the filter frame 30. The motor 40 is electrically connected to the control cabinet.

[0029] In the initial state, the filter frame 30 is tilted, with the first side of the filter frame 30 facing down and partially immersed in the coating solution, and the second side of the filter frame 30 facing up.

[0030] The specific working process of this device is as follows:

[0031] First, fertilizer granules enter the housing 20 through the feed hopper 21 and fall onto the first side of the filter frame 30. These fertilizer granules are soaked in the coating liquid and fully contact the coating liquid, and the coating is completed after a period of time.

[0032] Then, after the coating is completed, the control cabinet starts the motor 40, which drives the filter frame 30 to swing. At this time, the first side of the filter frame 30 swings upward and gradually loses contact with the coating liquid, while the second side of the filter frame 30 swings downward. When the filter frame 30 is in a horizontal state, it is held for a period of time so that the excess coating liquid on the fertilizer granules drips to the bottom of the box 20.

[0033] Next, the motor 40 continues to drive the filter frame 30 to swing until the first side of the filter frame 30 is higher than the second side of the filter frame 30. At this time, under the action of gravity, the coated fertilizer granules will be automatically discharged from the discharge port 32, and the discharge speed is faster.

[0034] This device completes the coating process by immersing fertilizer granules in a coating solution. Compared to the traditional method of spraying the coating solution onto the fertilizer granules, this method allows for more thorough contact with the coating solution, resulting in a more uniform coating.

[0035] It is worth noting that not too many fertilizer particles should enter the housing 20 through the feed hopper 21 each time, so as to avoid the fertilizer particles overflowing the filter frame 30.

[0036] It is important to note that the diameter of the filter hole 31 should be smaller than the diameter of the fertilizer granules so that the filter frame 30 can perform its filtering function. In the prior art, fertilizer granules are screened to a suitable size before coating, so the diameter design of the filter hole 31 is easy to achieve.

[0037] In one embodiment, a blocking mechanism 50 is further included, comprising a guide rail 51, a baffle 52, and a connecting rod 53. The guide rail 51 is longitudinally disposed above the notch 22 and fixedly connected to the inner wall of the housing 20; preferably, the guide rail 51 has a T-shaped structure. The baffle 52 is disposed on the guide rail 51 and slidably connected to the guide rail 51. The two ends of the connecting rod 53 are hinged to the filter frame 30 and the baffle 52, respectively.

[0038] In the initial state, the bottom of the baffle 52 is in contact with the bottom of the inner wall of the filter frame 30, and the notch 22 is blocked to prevent some fertilizer particles from splashing out of the notch 22 due to bouncing when they fall into the filter frame 30 through the feed hopper 21.

[0039] When the device discharges material, as the first side of the filter frame 30 swings upward, the connecting rod 53 will push the baffle 52 upward under the action of the guide rail 51. At this time, the notch 22 will be gradually exposed. Therefore, the design of the blocking mechanism 50 will not affect the normal discharge of the device.

[0040] In one embodiment, the filter frame 30 is adapted to the inner wall of the housing 20, so that the filter frame 30 can better catch fertilizer particles and prevent fertilizer particles from falling between the inner wall of the housing 20 and the filter frame 30.

[0041] In one embodiment, the top of the filter frame 30 is formed with a downwardly inclined and inwardly extending guide surface 33, which is located inside the housing 20.

[0042] Due to the design of the guide surface 33, fertilizer particles falling to the top of the filter frame 30 will automatically fall into the interior of the filter frame 30, so as to avoid these fertilizer particles being left on the top of the filter frame 30 and thus preventing the coating process from being completed.

[0043] In one embodiment, a receiving box 60 is also included, which is placed on the base 10 and located directly below the discharge port 32.

[0044] When the motor 40 is working, the second side of the filter frame 30 tilts downward, and the coated fertilizer granules will automatically be discharged from the outlet 32 ​​and fall into the receiving box 60 for centralized collection, which is convenient for subsequent transfer.

[0045] In one embodiment, the system further includes multiple conveyor rollers 11, which are spaced apart and rotatably connected to the base 10. The conveyor rollers 11 contact the receiving box 60 to facilitate the operation of the receiving box 60 by the operator.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all changes falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0047] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A slow release fertilizer coating apparatus comprising a base, characterized by: Also includes: The box has a feed hopper fixedly installed on its top, and a notch communicating with its interior is opened on the side wall of the box. The bottom of the box is filled with coating liquid. The filter frame has an opening facing upwards, and its middle part is rotatably connected to the inner wall of the notch. The bottom of the filter frame has multiple filter holes. The first side of the filter frame is located inside the housing, and the second side of the filter frame is located outside the housing. The second side of the filter frame has a discharge port communicating with its interior. An electric motor is fixedly mounted on the housing and is used to control the rotation of the filter frame.

2. The slow release fertilizer coating device according to claim 1, wherein: It also includes a blocking mechanism, which includes a guide rail, a baffle, and a connecting rod. The guide rail is longitudinally arranged above the notch and is fixedly connected to the inner wall of the box. The baffle is arranged on the guide rail and is slidably connected to the guide rail. The two ends of the connecting rod are respectively hinged to the filter frame and the baffle.

3. The slow release fertilizer coating device according to claim 1, wherein: The filter frame is adapted to the inner wall of the housing.

4. The slow release fertilizer coating device according to claim 3, wherein: The top of the filter frame has a downwardly sloping and inwardly extending guide surface, which is located inside the housing.

5. The slow release fertilizer coating device according to claim 1, wherein: It also includes a receiving box, which is placed on the base and located directly below the discharge port.

6. A slow release fertilizer coating device according to claim 5, wherein: It also includes multiple conveyor rollers, which are arranged at intervals and are rotatably connected to the base. The conveyor rollers are in contact with the receiving box.

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