Screening device for granular organic fertilizer
By designing a screening device with multi-directional dynamic vibration, the problem of easy clogging in traditional screening devices has been solved, achieving efficient screening and equipment stability, and ensuring continuous production of organic fertilizer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBI BOLONG ANIMAL HUSBANDRY MACHINERY CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-08-04
AI Technical Summary
Traditional fixed screen screening devices are prone to clogging when screening organic fertilizer, resulting in reduced screening efficiency and poor equipment stability, making it difficult to meet the needs of continuous production.
Design a multi-directional dynamic vibration screening device. The separation screen plate on the conveyor belt is driven by the inclined contact of the main push rod and the auxiliary push rod. Combined with the cooperation of the telescopic device and the spring, the separation screen plate can move back and forth and up and down, thereby enhancing the screening effect.
It improved screening efficiency, reduced filter clogging, enhanced equipment stability, and ensured smooth continuous production.
Smart Images
Figure CN224586327U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of granular organic fertilizer screening technology, specifically to a screening device for granular organic fertilizer. Background Technology
[0002] In the production of granular organic fertilizer, the fertilizer is prone to deformation due to compression or agglomeration after drying, forming irregular granules or fine powder. To ensure the uniformity and quality of the fertilizer granules, screening is usually required before transportation or packaging to remove unqualified broken or deformed granules. Currently, common screening devices mainly adopt a fixed filter screen structure. When the fertilizer moves on a conveyor belt or vibrating screen, granules that meet the particle size requirements pass through the filter screen, while large granules or agglomerated parts are separated.
[0003] However, traditional fixed-screen sieving methods have significant drawbacks: organic fertilizer particles are prone to sticking together, have high moisture content, or contain fine powder, making the screen easily clogged during sieving, leading to decreased sieving efficiency and even affecting continuous production. Although some equipment uses vibrating motors or mechanical beating devices to assist in screen cleaning, the vibration direction is singular (usually only up and down), making it difficult to completely avoid the problem of screen clogging, and long-term use can easily lead to screen deformation or damage.
[0004] Therefore, there is an urgent need for a new type of granular organic fertilizer screening device that can achieve multi-directional dynamic vibration during fertilizer transportation, so that the filter screen can not only move up and down, but also swing back and forth, thereby enhancing the screening effect, reducing clogging, and improving screening efficiency and equipment stability. Utility Model Content
[0005] In view of the above situation and to overcome the defects of the prior art, this utility model provides a screening device for granular organic fertilizer to solve the problems mentioned in the background art.
[0006] A screening device for granular organic fertilizer includes a first conveyor belt, a support plate, and a second conveyor belt. The dried granular organic fertilizer is conveyed to the second conveyor belt via the first conveyor belt. The first conveyor belt and the second conveyor belt are arranged at different heights. A drive motor is provided on the support plate, and the drive motor is used to drive the first conveyor belt to perform the conveying action.
[0007] A separation frame is fixedly connected to the support plate, a separation sieve plate is provided inside the separation frame, and a screening mechanism is provided between the separation sieve plate and the separation frame.
[0008] Preferably, the output end of the drive motor is fixedly connected to an output shaft, which drives the first transmission belt to perform transmission operations through a transmission wheel. A push plate is slidably connected to the support plate, and a fixing spring is provided between the push plate and the support plate.
[0009] Preferably, the screening mechanism includes a push rod fixedly connected to the outer wall of the output shaft. The push rod rotates continuously as the first conveyor belt continues to move. During the rotation, the push rod contacts the push plate and pushes it to move a certain distance.
[0010] Preferably, a main push rod is fixedly connected to the push plate, and a secondary push rod is fixedly connected to the separation screen plate. The opposite ends of the main push rod and the secondary push rod are both set in an inclined manner, and the main push rod can contact the secondary push rod when moving.
[0011] Preferably, in the front-to-back direction within the separation frame: a telescopic device is provided between the separation sieve plate and the inner sidewall of the separation frame, the telescopic device consisting of a first rod and a second rod, the second rod being connected to the first rod by an insertion method, and a return spring being provided between the first rod and the second rod.
[0012] Preferably, an adapter plate is slidably connected within the separation frame, and the separation sieve plate and the adapter plate can slide relative to each other. A screening spring is provided between the separation sieve plate and the adapter plate, and the sliding direction of the adapter plate is the forward and backward direction of the separation sieve plate.
[0013] Preferably, a barrier frame is fixedly connected to the top of the separation frame.
[0014] The beneficial effects of this utility model are as follows:
[0015] This solution, through the design of a separating screen plate, allows the conveyor belt to continuously push the organic fertilizer particles, decomposing the pushing force of the screen plate into translational and downward components under the action of the main push rod. This causes the screen plate to move forward and backward and up and down, generating multi-directional shaking, which enhances the screening effect and improves screening efficiency. Attached Figure Description
[0016] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a cross-sectional view of the detachable frame in this utility model;
[0018] Figure 3 This is a schematic diagram showing the position of the push plate in this utility model;
[0019] Figure 4 This is a schematic diagram showing the positions of the first rod and the second rod in this utility model.
[0020] In the picture:
[0021] 1. First conveyor belt; 2. Support plate; 3. Second conveyor belt; 4. Drive motor; 5. Separation frame; 6. Barrier frame; 7. Separation sieve plate; 8. First rod; 9. Adaptor plate; 10. Screening spring; 11. Reset spring; 12. Second rod; 13. Output shaft; 14. Push rod; 15. Push plate; 16. Main push rod; 17. Secondary push rod; 18. Fixing spring. Detailed Implementation
[0022] The following will refer to the attached reference. Figures 1 to 4 The various embodiments of this utility model will be described in detail below. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this utility model and are not intended to limit the scope of protection of this utility model.
[0023] A screening device for granular organic fertilizer includes a first conveyor belt 1, a support plate 2, and a second conveyor belt 3. The dried granular organic fertilizer is conveyed from the first conveyor belt 1 to the second conveyor belt 3. The first conveyor belt 1 and the second conveyor belt 3 are arranged at different heights. A drive motor 4 is mounted on the support plate 2, and the drive motor 4 drives the first conveyor belt 1 to perform the conveying action. (See attached diagram) Figure 1 After drying, the granular organic fertilizer will be transported to the second conveyor belt 3 via the first conveyor belt 1. During this process, when the organic fertilizer leaves the first conveyor belt 1, it will fall onto the separation screen plate 7. The separation screen plate 7 will screen the granular fertilizer in the transmission and remove the unqualified granular fertilizer that has been flattened during the drying process.
[0024] The output end of the drive motor 4 is fixedly connected to an output shaft 13. The output shaft 13 drives the first transmission belt 1 for transmission through a transmission wheel. A push plate 15 is slidably connected to the support plate 2, and a fixing spring 18 is provided between the push plate 15 and the support plate 2. When the drive motor 4 drives the output shaft 13 to rotate, the push rod 14 frequently pushes the push plate 15 toward the separation screen plate 7.
[0025] A separation frame 5 is fixedly connected to the support plate 2. A separation sieve plate 7 is provided inside the separation frame 5. A screening mechanism is provided between the separation sieve plate 7 and the separation frame 5.
[0026] The screening mechanism includes a push rod 14 fixedly connected to the outer wall of the output shaft 13. The push rod 14 rotates continuously as the first conveyor belt 1 continues to move. During the rotation, the push rod 14 contacts the push plate 15 and pushes it to move a certain distance.
[0027] A main push rod 16 is fixedly connected to the push plate 15, and a secondary push rod 17 is fixedly connected to the separating screen plate 7. Both the main push rod 16 and the secondary push rod 17 are inclined at opposite ends, allowing the main push rod 16 to contact the secondary push rod 17 during movement. The inclined surfaces at opposite ends of the main push rod 16 and the secondary push rod 17 allow the secondary push rod 17 to experience a downward force during the push, facilitating the subsequent downward movement of the separating screen plate 7.
[0028] See attached document Figure 4 In the front-to-back direction within the separation frame 5: a telescopic device is provided between the separation sieve plate 7 and the inner sidewall of the separation frame 5. The telescopic device consists of a first rod 8 and a second rod 12. The second rod 12 is connected to the first rod 8 by insertion. A return spring 11 is provided between the first rod 8 and the second rod 12.
[0029] An adapter plate 9 is slidably connected inside the separation frame 5. The separation screen plate 7 and the adapter plate 9 can slide relative to each other. A screening spring 10 is provided between the separation screen plate 7 and the adapter plate 9. The sliding direction of the adapter plate 9 is the forward and backward direction of the separation screen plate 7.
[0030] It should be noted that the elastic coefficient of the return spring 11 is smaller than that of the screening spring 10. Therefore, when the main push rod 16 pushes the auxiliary push rod 17, the separating screen plate 7 moves the first rod 8 a short distance towards the second rod 12. Only when the main push rod 16 continues to move will the separating screen plate 7 move downwards under the action of the inclined plane. Then, when the main push rod 16 rotates until it disengages from the auxiliary push rod 17, the separating screen plate 7 will return to its original position under the action of the spring, thus continuously performing multi-directional shaking screening of the organic fertilizer, improving screening efficiency.
[0031] A barrier frame 6 is fixedly connected to the top of the separation frame 5. The barrier frame 6 is used to prevent organic fertilizer from falling outside the separation screen plate 7 when the separation screen plate 7 is screening the organic fertilizer.
[0032] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0033] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.
[0034] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A screening device for granular organic fertilizer, characterized in that, Includes a first conveyor belt (1), a support plate (2), and a second conveyor belt (3). The dried granular organic fertilizer is conveyed to the second conveyor belt (3) via the first conveyor belt (1). The first conveyor belt (1) and the second conveyor belt (3) are set at different heights. The support plate (2) is equipped with a drive motor (4), which is used to drive the first conveyor belt (1) to perform the conveying action. A separation frame (5) is fixedly connected to the support plate (2), and a separation sieve plate (7) is provided inside the separation frame (5). A screening mechanism is provided between the separation sieve plate (7) and the separation frame (5).
2. The screening device for granular organic fertilizer according to claim 1, characterized in that, The output end of the drive motor (4) is fixedly connected to the output shaft (13), and the output shaft (13) drives the first transmission belt (1) to perform transmission operations through the transmission wheel. The support plate (2) is slidably connected to the push plate (15), and a fixed spring (18) is provided between the push plate (15) and the support plate (2).
3. The screening device for granular organic fertilizer according to claim 2, characterized in that, The screening mechanism includes a push rod (14) fixedly connected to the outer wall of the output shaft (13). The push rod (14) rotates continuously with the continuous transmission action of the first conveyor belt (1). During the rotation, the push rod (14) contacts the push plate (15) and pushes it to move a certain distance.
4. A screening device for granular organic fertilizer according to claim 2, characterized in that, A main push rod (16) is fixedly connected to the push plate (15), and a secondary push rod (17) is fixedly connected to the separation sieve plate (7). The main push rod (16) and the secondary push rod (17) are both set at opposite ends in an inclined manner, and the main push rod (16) can contact the secondary push rod (17) when moving.
5. A screening device for granular organic fertilizer according to claim 1, characterized in that, In the front-to-back direction within the separation frame (5): a telescopic device is provided between the separation sieve plate (7) and the inner side wall of the separation frame (5). The telescopic device consists of a first rod (8) and a second rod (12). The second rod (12) is connected to the first rod (8) by insertion. A return spring (11) is provided between the first rod (8) and the second rod (12).
6. A screening device for granular organic fertilizer according to claim 1, characterized in that, An adapter plate (9) is slidably connected inside the separation frame (5). The separation sieve plate (7) and the adapter plate (9) can slide relative to each other. A screening spring (10) is provided between the separation sieve plate (7) and the adapter plate (9). The sliding direction of the adapter plate (9) is the forward and backward direction of the separation sieve plate (7).
7. A screening device for granular organic fertilizer according to claim 1, characterized in that, A barrier frame (6) is fixedly connected to the top of the separation frame (5).