Anti-blocking fertilizer screening machine

Abstract

The utility model relates to an anti-blocking fertilizer screening machine, and belongs to the technical field of fertilizer production, the anti-blocking fertilizer screening machine comprises a screening cylinder, a plurality of screening nets vertically distributed in the screening cylinder at equal intervals and a powder receiving base arranged at the lower end of the screening cylinder, and a driving motor is arranged at the bottom end of the powder receiving base; a rotating shaft penetrating through the screening nets is arranged at the output end of the driving motor, and a plurality of shifting rods which are equal to the screening nets in number and attached to the upper surfaces of the screening nets in a one-to-one correspondence mode are arranged outside the rotating shaft. A plurality of annular bases are arranged in the screening cylinder, the number of the annular bases is equal to that of the screening nets, and the annular bases are located below the screening nets in a one-to-one correspondence mode. A plurality of hollow cylinders are arranged at the upper ends of the annular bases. According to the anti-blocking fertilizer screening machine, the automatic exhaust valve is opened for exhausting and is matched with the elastic stretching reset of the elastic piece, so that the knocking head instantly moves to knock the screening net, the situation that fertilizer is blocked in screening holes of the screening net is avoided, and the screening efficiency and effect are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of fertilizer production technology, specifically to an anti-clogging fertilizer screening machine. Background Technology

[0002] Fertilizers are substances that provide one or more essential nutrients for plants, improve soil properties, and enhance soil fertility. They are one of the material foundations of agricultural production and mainly include ammonium phosphate fertilizers, water-soluble fertilizers containing macronutrients, fertilizers containing micronutrients, bio-fertilizers, organic fertilizers, and multi-dimensional energy-concentrated organic fertilizers.

[0003] When fertilizer granules are screened, the screening is achieved by shaking the screening screen or rotating the drum screen. However, the granules are prone to clogging the screening screen, which prevents the material from flowing and affects the normal screening. Therefore, we propose an anti-clogging fertilizer screening machine to solve this technical defect. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an anti-clogging fertilizer screening machine.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-clogging fertilizer screening machine, comprising a screening cylinder, multiple vertically equidistant screening screens disposed within the screening cylinder, and a powder receiving base disposed at the lower end of the screening cylinder. The bottom end of the powder receiving base is provided with a drive motor, the output end of the drive motor is provided with a rotating shaft passing through the screening screens, and the outside of the rotating shaft is provided with multiple levers equal in number to the number of screening screens and corresponding one-to-one with the upper surface of the screening screens.

[0006] The screening cylinder is provided with a plurality of annular seats, the same number as the screening screen, located below the screening screen in a one-to-one correspondence. The upper end of the annular seats is provided with a plurality of hollow cylinders. The hollow cylinders are provided with elastic elements. The other end of the elastic elements is provided with a piston rod that slides and seals against the inner wall of the hollow cylinder and passes through the hollow cylinder. The upper end of the piston rod is provided with a striking head. The powder receiving base is provided with an air extraction component that extracts air from the hollow cylinders. The air extraction component is provided with an automatic exhaust valve.

[0007] By employing the above technical solution, fertilizer granules are fed into the screening cylinder. A drive motor rotates a lever on the shaft, which agitates the fertilizer against the surface of the screening mesh, preventing fertilizer buildup and blockage that would affect the mesh's ability to screen the granules. Simultaneously, an air extraction assembly, connected to the annular seat and hollow cylinder, extracts air from the hollow cylinder, moving the piston rod and striking head. The elastic element compresses synchronously, separating the striking head from the screening mesh. An automatic exhaust valve opens to release air, and the elastic element extends and retracts, causing the striking head to strike the screening mesh instantly, thus preventing fertilizer blockage within the mesh openings.

[0008] As a preferred embodiment of this utility model, the screening screen is provided with screening holes, and the screening holes on each of the screening screens gradually decrease in size from top to bottom.

[0009] The above technical solution enables the classification and screening of fertilizer granules.

[0010] As a preferred embodiment of this utility model, the rotating shafts of the screening cylinder, screening screen, and powder receiving base are arranged at the same center.

[0011] As a preferred technical solution of this utility model, the screening cylinder is connected to a plurality of discharge pipes, which are equal in number to the number of screening screens and correspond one-to-one with the upper surface of the screening screens.

[0012] The above technical solution facilitates the discharge of the screened fertilizer through the discharge pipe.

[0013] As a preferred embodiment of this utility model, the elastic element is a stainless steel spring, but is not limited to stainless steel springs.

[0014] By adopting the above technical solution, the adaptability of the elastic component can be improved.

[0015] As a preferred technical solution of this utility model, the air extraction component includes an air extraction pump disposed on the outside of the powder receiving base, an air extraction pipe connected to the air extraction port of the air extraction pump, an air pipe connected to the other end of the air extraction pipe, and a connecting pipe connected between the air pipe and the annular seat.

[0016] Using the above technical solution, while the air pump is working to draw air, the air inside the annular seat is extracted by utilizing the interconnection between the air pump, air pipe, connecting pipe, and annular seat.

[0017] As a preferred technical solution of this utility model, it also includes a sealing cap adapted to seal the upper opening of the screening cylinder, wherein air holes are evenly distributed on the lower end face of the sealing cap, and a booster fan is connected to the upper end of the sealing cap.

[0018] Using the above technical solution, the booster fan operates to discharge airflow from the vents on the cover, cleaning the material adhering to the screening cylinder and screen, and preventing accumulation and blockage.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0020] 1. This anti-clogging fertilizer screening machine works by feeding fertilizer granules into the screening cylinder. A drive motor rotates a lever on the shaft, which moves the fertilizer against the surface of the screening mesh, preventing fertilizer buildup and clogging that would hinder the screening process. Simultaneously, an air extraction component, connected to the annular seat and hollow cylinder, extracts air from the hollow cylinder, moving the piston rod and striking head. The elastic element compresses synchronously, separating the striking head from the screening mesh. An automatic exhaust valve opens to release air, and the elastic element extends and returns to its original position, causing the striking head to strike the screening mesh instantly. This prevents fertilizer from clogging the mesh, ensuring efficient and effective screening.

[0021] 2. This anti-clogging fertilizer screening machine uses a booster fan to discharge air through the vents on the cover, cleaning the material adhering to the screening cylinder and screen, and preventing accumulation and clogging. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present utility model;

[0023] Figure 2 This is a bottom-view perspective view of the present invention;

[0024] Figure 3 This is a cross-sectional perspective view of the screening cylinder of this utility model;

[0025] Figure 4 This is an exploded view of a partial structure of this utility model.

[0026] In the diagram: 1. Screening cylinder; 2. Screening screen; 3. Powder receiving base; 4. Drive motor; 5. Rotating shaft; 6. Actuating rod; 7. Annular seat; 8. Hollow cylinder; 9. Elastic element; 10. Piston rod; 11. Striking head; 12. Connecting pipe; 13. Air pump; 14. Air extraction pipe; 15. Air pipe; 16. Automatic exhaust valve; 17. Cover; 18. Air hole; 19. Air compressor; 20. Discharge pipe. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-4 The anti-clogging fertilizer screening machine in this embodiment includes a screening cylinder 1, multiple vertically equidistantly distributed screening screens 2 sealed inside the screening cylinder 1, and a powder receiving base 3 installed and fixed at the lower end of the screening cylinder 1. A drive motor 4 is installed and fixed at the bottom end of the powder receiving base 3. A rotating shaft 5 passing through the screening screens 2 is installed and fixed at the output end of the drive motor 4. Multiple levers 6, equal in number to the number of screening screens 2 and corresponding to each other, are installed and fixed on the outside of the rotating shaft 5 and are attached to the upper surface of the screening screens 2. The screening cylinder 1 is equipped with a fixed... There are multiple annular seats 7 located below the screening screen 2, with the same number of seats as the screening screen 2 and corresponding one-to-one. The upper surface of the annular seats 7 is connected to multiple hollow cylinders 8. An elastic element 9 is installed and fixed inside the hollow cylinder 8. A piston rod 10 is installed and fixed at the other end of the elastic element 9, which slides and seals against the inner wall of the hollow cylinder 8 and passes through the hollow cylinder 8. A striking head 11 is installed and fixed on the upper surface of the piston rod 10. The powder receiving base 3 is equipped with an air extraction component to extract air from the hollow cylinder 8. An automatic exhaust valve 16 is provided on the air extraction component.

[0029] Detailed structure and positional relationship: Screening cylinder 1: As the main frame of the entire screening machine, it is welded from high-strength steel and has sufficient load-bearing capacity and stability.

[0030] Screening mesh 2 is used to screen fertilizer granules.

[0031] The upper opening of the screening cylinder 1 is provided with a sealing cover 17 that is adapted to seal it. The lower end face of the sealing cover 17 has evenly distributed air holes 18, and the upper end of the sealing cover 17 is connected to a booster fan 19.

[0032] Multiple discharge pipes 20, equal in number to the number of screening screens 2 and corresponding one-to-one with the upper surface of the screening screens 2, are connected to the side wall of the screening cylinder 1. An automatic switching valve is connected to the outside of the discharge pipe 20. The automatic switching valve opens to facilitate the discharge of the screened fertilizer.

[0033] Screening mesh 2: Multiple screening meshes 2 are vertically and equally distributed inside the screening cylinder 1. Each screening mesh 2 is provided with screening holes, and the screening holes on each screening mesh 2 gradually decrease in size from top to bottom, so as to achieve the classification and screening of fertilizer particles.

[0034] A lever 6 is attached to the upper surface of the screening screen 2. The lever 6 is fixed on the rotating shaft 5, which is driven by the drive motor 4. The lever 6 has the same diameter as the screening screen 2.

[0035] Powder receiving base 3: Located at the lower end of the screening cylinder 1, it is used to collect the screened powder.

[0036] The powder receiving base 3 is equipped with an air extraction component to extract the air from the hollow cylinder 8.

[0037] Drive motor 4: Installed at the bottom of the powder receiving base 3, used to drive the rotating shaft 5 to rotate.

[0038] The striking head 11 is a rubber block.

[0039] The air extraction assembly includes an air pump 13 installed and fixed on the outside of the powder receiving base 3. An air extraction pipe 14 is connected to the air extraction port of the air pump 13, and an air pipe 15 is connected to the other end of the air extraction pipe 14. A connecting pipe 12 is connected between the air pipe 15 and the annular seat 7.

[0040] The air extraction assembly is equipped with an automatic exhaust valve 16, which is connected to the outside of the air extraction pipe 14 and is used to discharge the gas inside the hollow cylinder 8.

[0041] Elastic component 9: It adopts a stainless steel spring, but is not limited to stainless steel springs, to improve the adaptability of elastic component 9.

[0042] Booster fan 19: When the booster fan 19 is working, the airflow is discharged from the air hole 18 on the cover 17 to clean the material attached to the screening cylinder 1 and the screening screen 2 and prevent accumulation and blockage.

[0043] Scheme principle and screening process:

[0044] Fertilizer granules are fed into the screening cylinder 1, and the drive motor 4 drives the lever 6 on the rotating shaft 5 to rotate, which moves the fertilizer against the surface of the screening screen 2, preventing the fertilizer from accumulating and clogging the surface of the screening screen 2.

[0045] Fertilizer granules are classified and screened through the screening holes of screening screen 2, and fertilizer granules of different sizes are discharged through the corresponding discharge pipe 20.

[0046] Anti-congestion mechanism:

[0047] When the air extraction assembly is in operation, the air extraction pump 13 extracts the air from the annular seat 7 through the air extraction pipe 14 and the air pipe 15, thereby reducing the air pressure inside the hollow cylinder 8.

[0048] The decrease in air pressure causes the piston rod 10 and the striking head 11 to move upward, and the elastic element 9 is compressed simultaneously, causing the striking head 11 to separate from the screening screen 2.

[0049] The automatic exhaust valve 16 opens to exhaust air, and the elastic element 9 extends and resets, causing the striking head 11 to move downwards momentarily to strike the screening screen 2, thereby preventing fertilizer from clogging the screen holes of the screening screen 2.

[0050] Cleanup mechanism:

[0051] When the booster fan 19 operates, airflow is discharged from the air hole 18 on the cover 17 to clean the material adhering to the screening cylinder 1 and the screening screen 2, preventing material accumulation and blockage.

[0052] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-clogging fertilizer screening machine, comprising a screening cylinder, a plurality of vertically equidistant screening screens disposed within the screening cylinder, and a powder receiving base disposed at the lower end of the screening cylinder, characterized in that, The bottom end of the powder receiving base is provided with a drive motor, and the output end of the drive motor is provided with a rotating shaft that passes through the sieve screen. The outside of the rotating shaft is provided with a plurality of levers that are equal in number to the number of the sieve screen and are attached to the upper surface of the sieve screen in a one-to-one correspondence. The screening cylinder is provided with a plurality of annular seats, the same number as the screening screen, located below the screening screen in a one-to-one correspondence. The upper end of the annular seats is provided with a plurality of hollow cylinders. The hollow cylinders are provided with elastic elements. The other end of the elastic elements is provided with a piston rod that slides and seals against the inner wall of the hollow cylinder and passes through the hollow cylinder. The upper end of the piston rod is provided with a striking head. The powder receiving base is provided with an air extraction component that extracts air from the hollow cylinders. The air extraction component is provided with an automatic exhaust valve.

2. The anti-clogging fertilizer screening machine according to claim 1, characterized in that: The screening screen is provided with screening holes, and the screening holes on each of the screening screens gradually decrease in size from top to bottom.

3. The anti-clogging fertilizer screening machine according to claim 1, characterized in that: The rotating shafts of the screening cylinder, screening screen, and powder receiving base are all arranged at the same center.

4. The anti-clogging fertilizer screening machine according to claim 1, characterized in that: The screening cylinder is connected to multiple discharge pipes, the same number as the screening mesh, which are one-to-one corresponding to and attached to the upper surface of the screening mesh.

5. The anti-clogging fertilizer screening machine according to claim 1, characterized in that: The elastic element is a stainless steel spring, but is not limited to stainless steel springs.

6. The anti-clogging fertilizer screening machine according to claim 1, characterized in that: The air extraction assembly includes an air pump located outside the powder receiving base. An air extraction pipe is connected to the air extraction port of the air pump, and an air pipe is connected to the other end of the air extraction pipe. A connecting pipe is connected between the air pipe and the annular seat.

7. The anti-clogging fertilizer screening machine according to claim 1, characterized in that: It also includes a cover that is adapted to seal the upper opening of the screening cylinder, the lower end face of the cover has evenly distributed air holes, and the upper end of the cover is connected to a booster fan.

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