A fertilizer granule screening device
By using a rotating shaft to drive the screen cylinder to vibrate and high-pressure gas to clean it, the problems of high energy consumption and clogging in drum-type screening devices are solved, achieving efficient and energy-saving fertilizer particle screening.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN HENGXIANGFENG BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-06-07
- Publication Date
- 2026-07-14
AI Technical Summary
Existing drum-type fertilizer granule screening devices consume a lot of energy and are prone to clogging when vibrating, which affects the screening effect.
The screen cylinder is vibrated by a rotating shaft and cleaned with high-pressure gas. Screening is performed by rotating and vibrating the screen cylinder to prevent clogging.
It reduces operating energy consumption, prevents screen cylinder clogging, and improves screening efficiency and ease of use.
Smart Images
Figure CN224486650U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fertilizer granule screening technology, and specifically discloses a fertilizer granule screening device. Background Technology
[0002] Fertilizers are substances that provide the nutrients needed for crop growth and development, improve soil properties, and increase crop yield and quality. They are an important production material in agricultural production. Fertilizers are generally classified into organic fertilizers, inorganic fertilizers, and biological fertilizers. They can also be classified by source into farmyard manure and chemical fertilizers, by the amount of nutrients they contain into complete fertilizers and incomplete fertilizers, by the characteristics of fertilization into direct fertilizers and indirect fertilizers, and by their composition into nitrogen fertilizers, potassium fertilizers, micronutrient fertilizers, and rare earth element fertilizers. Most fertilizers are produced in granule form through granulation, which facilitates application and fertilization. In current technology, after fertilizer granules are granulated, they need to be screened.
[0003] Existing fertilizer granule screening devices mostly use drum screens to screen fertilizers. To further improve the screening efficiency of drum screens, vibration is usually added. However, drum screens are often vibrated by installing vibration motors, which increases the number of drive devices required and thus increases the energy consumption of the drum screen. At the same time, drum screens do not have anti-clogging structures, which makes the screen cylinders easy to clog, thus affecting the screening effect and making them inconvenient to use. Utility Model Content
[0004] This utility model proposes a fertilizer granule screening device that enables the drum screening device to vibrate while reducing operating energy consumption, and uses high-pressure gas to clean the screen cylinder, preventing the screen cylinder from clogging and affecting the screening effect of the drum screening device. It is easy to use.
[0005] This utility model is implemented as follows: a fertilizer granule screening device includes a base, an outer shell is provided above the base, and a screening mechanism and an anti-clogging mechanism are provided inside the outer shell.
[0006] The screening mechanism includes a sieve cylinder rotatably connected inside the housing. Two first gears distributed on the left and right are fixedly connected to the outer wall of the sieve cylinder. A rotating shaft located above the sieve cylinder is rotatably connected inside the housing. Second gears that mesh with the two first gears are fixedly connected to the outer wall of the rotating shaft. Both ends of the rotating shaft extend to the left and right sides of the housing, and eccentric blocks are fixedly connected to each of them.
[0007] The anti-clogging mechanism includes an air blowing hood disposed inside the housing and located on one side of the rotating shaft. The air outlet end of the air blowing hood matches the outer wall of the screen cylinder. A high-pressure blower is installed on the upper end face of the housing. The air outlet end of the high-pressure blower is connected to the air blowing hood through a pipe.
[0008] In a preferred embodiment of the fertilizer granule screening device of this utility model, a first bevel gear is fixedly connected to the outer wall of the rotating shaft, and a second bevel gear that meshes with the first bevel gear is rotatably connected to the upper inner end of the outer shell.
[0009] As a preferred embodiment of the fertilizer granule screening device of this utility model, a plurality of evenly distributed vibration supports are installed between the base and the outer shell.
[0010] As a preferred embodiment of the fertilizer granule screening device of this utility model, protective covers are fixedly connected to the left and right side walls of the outer shell, and the two eccentric blocks are respectively located inside the two protective covers.
[0011] In a preferred embodiment of the fertilizer granule screening device of this utility model, a drive motor is installed on the upper end face of the outer shell, and the output end of the drive motor is fixedly connected to the second bevel gear.
[0012] As a preferred embodiment of the fertilizer granule screening device of this utility model, the left and right side walls of the outer shell are respectively fixedly connected to a feed trough and a first discharge pipe communicating with the screen cylinder, and the lower end face of the outer shell is connected to a second discharge pipe.
[0013] As a preferred embodiment of the fertilizer granule screening device of this utility model, two fixing rods are fixedly connected between the upper inner end of the outer shell and the upper end face of the air blowing hood.
[0014] The beneficial effects of this utility model are:
[0015] The rotating shaft, in conjunction with two second gears and two first gears, drives the screen cylinder to rotate. The rotating screen cylinder tumbles and screens the fertilizer. At the same time, the rotating shaft drives two eccentric blocks to rotate, and the rotation of the two eccentric blocks causes the outer casing to vibrate. This, in turn, allows for efficient screening of the fertilizer through the rotating and vibrating screen cylinder. This allows the screen cylinder to vibrate while reducing operating energy consumption. The high-pressure gas blown out by the air blower can blow the fertilizer that is blocked in the screen holes of the screen cylinder back into the screen cylinder, thus cleaning the screen cylinder with high-pressure gas and preventing the screen cylinder from becoming clogged and affecting the screening effect of the device. It is easy to use. Attached Figure Description
[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a front cross-sectional view of the present invention.
[0019] Figure 3 This is a schematic diagram of the right-side cross-sectional structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the eccentric block of this utility model.
[0021] The markings in the diagram are: 1. Base; 2. Outer shell; 3. Screen cylinder; 4. First gear; 5. Rotating shaft; 6. Second gear; 7. Eccentric block; 8. Air blowing hood; 9. High-pressure blower; 10. First bevel gear; 11. Second bevel gear; 12. Vibration support; 13. Protective cover; 14. Drive motor; 15. Feed chute; 16. First discharge pipe; 17. Second discharge pipe; 18. Fixing rod. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.
[0023] Please see Figure 1-4 A fertilizer granule screening device includes a base 1, an outer shell 2 is provided above the base 1, and a screening mechanism and an anti-clogging mechanism are provided inside the outer shell 2.
[0024] The screening mechanism includes a screen cylinder 3 rotatably connected inside the outer casing 2. Two first gears 4 are fixedly connected to the outer wall of the screen cylinder 3, which are distributed on the left and right. A rotating shaft 5 located above the screen cylinder 3 is rotatably connected inside the outer casing 2. A second gear 6 that meshes with the two first gears 4 is fixedly connected to the outer wall of the rotating shaft 5. Both ends of the rotating shaft 5 extend to the left and right sides of the outer casing 2, and eccentric blocks 7 are fixedly connected to each end.
[0025] The anti-clogging mechanism includes an air blowing hood 8 located inside the housing 2 and on one side of the rotating shaft 5. The air outlet of the air blowing hood 8 matches the outer wall of the screen cylinder 3. A high-pressure blower 9 is installed on the upper surface of the housing 2. The air outlet of the high-pressure blower 9 is connected to the air blowing hood 8 through a pipe.
[0026] In this embodiment: When in use, fertilizer is placed into the screen cylinder 3 through the feed trough 15, and then the rotating shaft 5 rotates, which drives two second gears 6 to rotate. The two second gears 6 cooperate with two first gears 4 to drive the screen cylinder 3 to rotate. The rotating screen cylinder 3 flips and screens the fertilizer. At the same time, the rotating shaft 5 drives two eccentric blocks 7 to rotate. The rotation of the two eccentric blocks 7 drives the outer shell 2 to vibrate. Thus, the rotating and vibrating screen cylinder 3 efficiently screens the fertilizer, thereby reducing the energy consumption of operation while the screen cylinder 3 vibrates.
[0027] During the rotation of the screen cylinder 3, the high-pressure blower 9 starts and blows high-pressure gas into the air blowing hood 8 through the pipeline. Since the air outlet of the air blowing hood 8 matches the outer wall of the screen cylinder 3, the high-pressure gas blown out through the air blowing hood 8 can blow the fertilizer blocked in the screen holes of the screen cylinder 3 back into the screen cylinder 3. In this way, the high-pressure gas cleans the screen cylinder 3, preventing the screen cylinder 3 from being blocked and affecting the screening effect of the screening device. It is convenient to use.
[0028] As a technical optimization of this utility model, a first bevel gear 10 is fixedly connected to the outer wall of the rotating shaft 5, and a second bevel gear 11 that meshes with the first bevel gear 10 is rotatably connected to the upper end of the inner side of the outer shell 2.
[0029] In this embodiment: the second bevel gear 11 rotates, the second bevel gear 11 drives the first bevel gear 10 to rotate, and the first bevel gear 10 drives the rotating shaft 5 to rotate.
[0030] As a technical optimization of this utility model, a plurality of evenly distributed vibration supports 12 are installed between the base 1 and the outer shell 2.
[0031] In this embodiment, the outer shell 2 can be supported by multiple vibration supports 12, and the outer shell 2 can be vibrated. The vibration support 12 is a ZT type spring shock absorber, which is a well-known and mature existing technology. Its working principle and components will not be described in detail here.
[0032] As a technical optimization of this utility model, protective covers 13 are fixedly connected to the left and right side walls of the outer shell 2, and two eccentric blocks 7 are located inside the two protective covers 13 respectively.
[0033] In this embodiment, two protective covers 13 can protect the two eccentric blocks 7, preventing the two eccentric blocks 7 from accidentally injuring the staff during the rotation process.
[0034] As a technical optimization of this utility model, a drive motor 14 is installed on the upper surface of the outer shell 2, and the output end of the drive motor 14 is fixedly connected to the second bevel gear 11.
[0035] In this embodiment, the second bevel gear 11 can be driven to rotate by the drive motor 14.
[0036] As a technical optimization of this utility model, the left and right side walls of the outer shell 2 are respectively fixedly connected to the feed chute 15 and the first discharge pipe 16 which are connected to the screen cylinder 3, and the lower end face of the outer shell 2 is connected to the second discharge pipe 17.
[0037] In this embodiment: fertilizer is easily added into the screen cylinder 3 through the feed trough 15, fertilizer is easily discharged from the screen cylinder 3 through the first discharge pipe 16, and fertilizer is easily discharged from the outer shell 2 through the second discharge pipe 17.
[0038] As a technical optimization of this utility model, two fixing rods 18 are fixedly connected between the upper inner end of the outer shell 2 and the upper end face of the air blowing hood 8.
[0039] In this embodiment, the air blowing cover 8 can be supported and fixed by two fixing rods 18.
[0040] The working principle and usage process of this utility model are as follows: When in use, fertilizer is put into the screen cylinder 3 through the feed trough 15. Then, the drive motor 14 drives the second bevel gear 11 to rotate, the second bevel gear 11 drives the first bevel gear 10 to rotate, the first bevel gear 10 drives the rotating shaft 5 to rotate, the rotating shaft 5 drives the two second gears 6 to rotate, and the two second gears 6 cooperate with the two first gears 4 to drive the screen cylinder 3 to rotate. The rotating screen cylinder 3 flips and screens the fertilizer. At the same time, the rotating shaft 5 drives the two eccentric blocks 7 to rotate. The rotation of the two eccentric blocks 7 drives the outer shell 2 to vibrate, and then the rotating and vibrating screen cylinder 3 efficiently screens the fertilizer.
[0041] During the rotation of the screen cylinder 3, the high-pressure blower 9 starts and blows high-pressure gas into the air blowing hood 8 through the pipeline. Then, the high-pressure gas blown out through the air blowing hood 8 can blow the fertilizer blocked in the screen holes of the screen cylinder 3 back into the screen cylinder 3.
[0042] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.
[0043] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.
Claims
1. A fertilizer granule screening device, comprising a base (1), characterized in that: A housing (2) is provided above the base (1), and a screening mechanism and an anti-clogging mechanism are provided inside the housing (2); The screening mechanism includes a sieve cylinder (3) rotatably connected inside the outer shell (2). Two first gears (4) are fixedly connected to the outer wall of the sieve cylinder (3) and distributed on the left and right. A rotating shaft (5) located above the sieve cylinder (3) is rotatably connected inside the outer shell (2). A second gear (6) is fixedly connected to the outer wall of the rotating shaft (5) and meshes with the two first gears (4). Both ends of the rotating shaft (5) extend to the left and right sides of the outer shell (2) and are fixedly connected with eccentric blocks (7). The anti-clogging mechanism includes an air blowing hood (8) located inside the housing (2) and on one side of the rotating shaft (5). The air outlet of the air blowing hood (8) matches the outer wall of the screen cylinder (3). A high-pressure blower (9) is installed on the upper surface of the housing (2). The air outlet of the high-pressure blower (9) is connected to the air blowing hood (8) through a pipe.
2. The fertilizer granule screening device according to claim 1, characterized in that: The outer wall of the rotating shaft (5) is fixedly connected to a first bevel gear (10), and the upper inner end of the outer shell (2) is rotatably connected to a second bevel gear (11) that meshes with the first bevel gear (10).
3. The fertilizer granule screening device according to claim 1, characterized in that: Multiple evenly distributed vibration supports (12) are installed between the base (1) and the outer shell (2).
4. The fertilizer granule screening device according to claim 1, characterized in that: The left and right side walls of the outer shell (2) are fixedly connected with protective covers (13), and the two eccentric blocks (7) are located inside the two protective covers (13) respectively.
5. The fertilizer granule screening device according to claim 1, characterized in that: A drive motor (14) is mounted on the upper surface of the outer casing (2), and the output end of the drive motor (14) is fixedly connected to the second bevel gear (11).
6. The fertilizer granule screening device according to claim 1, characterized in that: The left and right side walls of the outer shell (2) are respectively fixedly connected to the feed trough (15) and the first discharge pipe (16) which are connected to the screen cylinder (3), and the lower end face of the outer shell (2) is connected to the second discharge pipe (17).
7. The fertilizer granule screening device according to claim 1, characterized in that: Two fixing rods (18) are fixedly connected between the upper inner end of the outer shell (2) and the upper end face of the air blowing hood (8).