Chemical fertilizer particle screening device

Abstract

The utility model relates to the technical field of chemical fertilizer screening equipment, and discloses a chemical fertilizer particle screening device which comprises a screening box of a cylindrical structure. A sieve plate, a track plate and a vibration structure; the multiple sieve plates are evenly arranged in the vertical direction, the diameters of sieve holes of the sieve plates from top to bottom are gradually decreased, the sieve plates are of a conical plate body structure, and after vortex-shaped track plates are fixed to the top faces of the sieve plates, vortex-shaped screening channels are formed in the upper sides of the sieve plates. And the collecting hoppers are in one-to-one correspondence with the sieve plates. Compared with the prior art, the chemical fertilizer screening device has the advantages that the multiple screens, the multiple corresponding track plates, the multiple corresponding vibration structures and the multiple corresponding collecting hoppers are evenly arranged in the vertical direction, and the screen holes of the screen plates are gradually reduced from top to bottom, so that more-stage screening can be carried out on chemical fertilizers, and screening is finer. When the chemical fertilizer is screened, the chemical fertilizer can completely pass through the vortex-shaped track plate, so that the screening time of the chemical fertilizer on the screen plate is longer, and the screening is more sufficient and thorough.

Description

Technical Field

[0001] This utility model relates to the technical field of fertilizer screening equipment, specifically to a fertilizer granule screening device. Background Technology

[0002] Fertilizer production involves many processes, one of which is screening fertilizer particles of different sizes. Screening separates the different sized particles, allowing for selection based on various fertilization needs. Currently, the most common equipment for fertilizer screening is the drum screen.

[0003] However, the following shortcomings still exist when using a drum screen:

[0004] 1. The screen cylinder of a rotary drum screen is generally quite short, which can easily lead to fertilizer being discharged from the screen before it has been completely screened. This results in the fertilizer not being fully screened.

[0005] 2. Drum screens can generally only separate fertilizers into two particle sizes, which is not fine enough. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the above-mentioned technical difficulties and provide a fertilizer granule screening device that can ensure more thorough screening of fertilizer and finer screening when in use.

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0008] A fertilizer granule screening device, comprising:

[0009] The screening box has a cylindrical structure.

[0010] The screen plate, track plate, and vibration structure are provided. Multiple screen plates are evenly arranged vertically, and the screen hole diameter of each screen plate gradually decreases from top to bottom. The screen plate has a conical plate structure, and a vortex-shaped track plate is fixed on the top surface. A vortex-shaped screening channel is formed on the upper side of the screen plate. The screening box has a discharge port reserved for each vortex-shaped screening channel. The edge of the screen plate is connected to the screening box through a vibration structure.

[0011] The collection hopper is set up one-to-one with the screen plate and fixed inside the screening box, and is only set above the corresponding screen plate.

[0012] As an improvement, the vibration structure includes limiting rods, springs, and pads. A horizontal annular plate is formed at the edge of the screen plate. Multiple limiting rods, evenly arranged circumferentially, are fixed to the bottom surface of the annular plate. Pads are fixed to the inner wall of the screening box corresponding to each limiting rod. After the limiting rods pass through pre-drilled holes in the pads, the annular plate and the pads are connected by a spring. A limiting stop is formed at the bottom of the limiting rod. Vibration ensures that fertilizer granules are not easily blocked during transport within the vortex screening channel.

[0013] As an improvement, fertilizer particles falling through the collection hopper are directed to the center of the vortex-shaped screening channel. This allows the fertilizer particles to complete the entire vortex screening channel, resulting in a better screening effect.

[0014] As an improvement, discharge guide slides are fixed on the side wall of the screening box corresponding to each discharge port, and the discharge guide slides gradually shorten from top to bottom. This facilitates the classification and collection of fertilizer materials of different particle sizes after screening.

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] 1. In use, the new type of screen and its corresponding track plate, vibration structure and collection hopper are all uniformly arranged vertically, and the screen holes of the screen plate gradually decrease from top to bottom. This allows for more stages of screening of fertilizers and more precise screening.

[0017] 2. When this new type of fertilizer is used, it will pass completely through the vortex-shaped track plate during screening, which allows the fertilizer to be screened on the screen plate for a longer time, thus making the screening more thorough. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a structural schematic diagram from another perspective of this utility model.

[0020] Figure 3 This is a partial structural schematic diagram of the present invention.

[0021] Figure 4 This is the utility model Figure 3 A partial structural diagram.

[0022] Figure 5 This is the utility model Figure 4 A structural diagram from another perspective.

[0023] As shown in the figure: 1. Screening box; 2. Screen plate; 3. Track plate; 4. Support leg; 5. Discharge guide slide; 6. Collection hopper; 7. Limiting rod; 8. Spring; 9. Pad plate; 10. Circular plate. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Additionally, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion.

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] A fertilizer granule screening device, comprising:

[0027] The screening box 1 has a cylindrical structure and three support legs 4 are fixed at the bottom;

[0028] The system comprises a sieve plate 2, a track plate 3, and a vibration structure. Two sieve plates 2 are evenly arranged vertically, with the aperture of the sieve holes gradually decreasing from top to bottom. Each sieve plate 2 has a conical plate structure, and a vortex-shaped track plate 3 is fixed to its top surface, forming a vortex-shaped screening channel on the upper side of the sieve plate 2. Each screening box 1 has a pre-reserved discharge port corresponding to the outlet of each vortex-shaped screening channel. The vibration structure includes a limiting rod 7, a spring 8, and a pad 9. A horizontal annular plate 10 is formed at the edge of the sieve plate 2. Multiple limiting rods 7 are evenly arranged circumferentially on the bottom surface of the annular plate 10. Pads 9 are fixed to the inner wall of the screening box 1 corresponding to each limiting rod 7. After the limiting rod 7 passes through a pre-reserved hole in the pad 9, the annular plate 10 and the pad 9 are connected by the spring 8. A limiting stop is formed at the bottom end of the limiting rod 7. Each discharge guide slide 5 is fixed on the side wall of the screening box 1 corresponding to each discharge port, and the discharge guide slide 5 gradually becomes shorter from top to bottom;

[0029] The collecting hopper 6 is arranged one-to-one with the screen plate 2 and is fixed inside the screening box 1, only positioned above the corresponding screen plate 2. Fertilizer particles passing through the collecting hopper 6 fall into the center of the vortex-shaped screening channel.

[0030] In the specific implementation of this embodiment:

[0031] like Figure 1 and 2 As shown, the fertilizer to be screened is poured into the uppermost collecting hopper 6, and then discharged onto the uppermost screen plate 2. As the fertilizer falls onto the screen plate 2, it vibrates to a certain extent, allowing the fertilizer to move along the vortex-shaped screening channel from the center to the outside under its own weight, thus performing a thorough screening. Larger fertilizer particles are discharged from the upper discharge guide chute 5. The fertilizer then falls onto the lower screen plate 2 and is screened using the same principle; medium-sized particles are discharged from the lower discharge guide chute 5. Finally, the smaller fertilizer particles passing through the lower screen plate 2 fall directly below the screening box 1.

[0032] It is worth mentioning that two collection buckets can be placed at different positions on the ground corresponding to the two discharge guide slides 5 in advance, so that the large and medium granular fertilizers after screening can be directly collected into the collection buckets.

[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A fertilizer granule screening device, characterized in that, include: The screening box (1) has a cylindrical structure; Screen plate (2), track plate (3) and vibration structure; multiple screen plates (2) are evenly arranged vertically, and the screen hole diameter of each screen plate (2) gradually decreases from top to bottom. The screen plate (2) is a conical plate structure, and after the vortex-shaped track plate (3) is fixed on the top surface, a vortex-shaped screening channel is formed on the upper side of the screen plate (2). The screening box (1) is reserved with a discharge port corresponding to the outlet of each vortex-shaped screening channel. The edge of the screen plate (2) is connected to the screening box (1) through a vibration structure. The collecting hopper (6) is set one-to-one with the screen plate (2), and after being fixed inside the screening box (1), it is only set above the corresponding screen plate (2).

2. The fertilizer granule screening device according to claim 1, characterized in that: The vibration structure includes a limiting rod (7), a spring (8), and a pad (9); a horizontal ring plate (10) is formed at the edge of the screen plate (2), and multiple limiting rods (7) are fixed on the bottom surface of the ring plate (10) and evenly arranged in the circumferential direction. Pads (9) are fixed on the inner wall of the screening box (1) corresponding to each limiting rod (7). After the limiting rod (7) passes through the pre-reserved hole on the pad (9), the ring plate (10) and the pad (9) are connected by the spring (8), and a limiting block is formed at the bottom of the limiting rod (7).

3. The fertilizer granule screening device according to claim 1, characterized in that: Fertilizer particles falling through the collection hopper (6) fall into the center of the vortex screening channel.

4. The fertilizer granule screening device according to claim 1, characterized in that: The screening box (1) has a discharge guide slide (5) fixed on the side wall corresponding to each discharge port, and the discharge guide slide (5) gradually becomes shorter from top to bottom.

5. The fertilizer granule screening device according to claim 1, characterized in that: The bottom of the screening box (1) is fixed with multiple support legs (4).

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