A fertilizer screening apparatus

Abstract

The application relates to a fertilizer screening device which comprises a feeding mechanism, a vibrating screen mechanism, a roller screen mechanism, a material collecting mechanism and a rack, the feeding mechanism is installed on the rack, the feeding mechanism is located above the vibrating screen mechanism, the feeding mechanism is connected with the vibrating screen mechanism, the feeding mechanism is detachably connected with the rack, the vibrating screen mechanism is installed on the rack on one side of the roller screen mechanism, the vibrating screen mechanism is detachably connected with the rack, the roller screen mechanism is installed on the rack, the roller screen mechanism is rotationally connected with the rack, the material collecting mechanism is installed on the rack below the roller screen mechanism, the material collecting mechanism is detachably connected with the rack, and the roller screen mechanism is arranged in an inclined mode; the application has the technical effect of improving the screening precision.

Description

Technical Field

[0001] This application relates to the technical field of fertilizer processing technology, and in particular to a fertilizer screening device. Background Technology

[0002] In modern agriculture and fertilizer processing, fertilizer screening is a crucial step in ensuring product quality. The uniformity of fertilizer particles directly affects its dissolution rate in the soil, nutrient release efficiency, and crop absorption. Therefore, high-quality screening equipment is essential for improving fertilizer quality.

[0003] Traditional fertilizer screening equipment often employs a single screening structure, such as a vibrating screen or a drum screen operating independently. This type of equipment has significant shortcomings; a single screening method is insufficient for precise grading of fertilizer particles, especially when processing compound fertilizers or organic and inorganic compound fertilizers. It cannot effectively separate particles of different sizes and shapes, resulting in uneven particle size in the finished product and affecting fertilization effectiveness.

[0004] Regarding the aforementioned technologies, the applicant believes that there is a deficiency in the accuracy of the screening process. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a fertilizer screening device.

[0006] This application provides a fertilizer screening device, which adopts the following technical solution: A fertilizer screening device includes a feeding mechanism, a vibrating screen mechanism, a drum screen mechanism, a receiving mechanism, and a frame. The feeding mechanism is mounted on the frame and located above the vibrating screen mechanism. The feeding mechanism is connected to the vibrating screen mechanism and is detachably connected to the frame. The vibrating screen mechanism is mounted on the frame on one side of the drum screen mechanism and is detachably connected to the frame. The drum screen mechanism is mounted on the frame and is rotatably connected to the frame. The receiving mechanism is mounted on the frame below the drum screen mechanism and is detachably connected to the frame. The drum screen mechanism is inclined.

[0007] By adopting the above technical solution, the feeding mechanism, vibrating screen mechanism, drum screen mechanism, and receiving mechanism are all detachably connected to the frame. The feeding mechanism evenly conveys the material to the vibrating screen mechanism, where large particles of impurities are screened out, and the fine material falls into the inclined drum screen mechanism. The vibrating screen mechanism initially disperses the material, avoiding blockage caused by the drum screen mechanism directly handling large pieces of material. The drum screen mechanism then uses spiral lifters to drive the material to tumble, achieving fine grading and improving the screening accuracy.

[0008] Preferably, the feeding mechanism includes a storage tank and a screw feeding mechanism. The storage tank has a feed inlet at the top and a discharge outlet at the bottom. The storage tank is detachably connected to the frame. The screw feeding mechanism is installed inside the storage tank and is rotatably connected to the storage tank.

[0009] By adopting the above technical solution, the screw feeding mechanism is rotatably connected to the storage tank. The screw feeding mechanism pushes the material in the storage tank from the discharge port to the vibrating screen mechanism evenly through the rotation of the screw blades. The discharge amount can be flexibly controlled by adjusting the speed of the screw blades.

[0010] Preferably, the vibrating screen mechanism includes a screen box, a first screen, and a vibrator. The top inlet of the screen box is connected to the bottom outlet of the storage tank. The screen box is mounted on the frame and is detachably connected to the frame. The first screen is installed inside the screen box and is detachably connected to the screen box. The vibrator is installed on one side of the screen box and is detachably connected to the screen box. The bottom outlet of the screen box is placed inside the drum screen mechanism.

[0011] By adopting the above technical solution, the detachable first screen in the screen box can be quickly replaced with screens of different apertures according to the material characteristics. The vibrator makes the material throw on the screen through the controllable vibration frequency and amplitude, avoiding particles from clogging the screen holes, while accelerating the speed at which fine particles pass through the screen. The material screened by the vibrating screen mechanism falls directly into the lower drum screen mechanism to form a multi-stage screen.

[0012] Preferably, a shock-absorbing spring system is provided between the frame and the screen box, and the screen box is mounted on the frame via the shock-absorbing spring system, which is detachably connected to the screen box and the frame.

[0013] By adopting the above technical solution, the shock-absorbing spring system is connected to the screen box and the frame. The shock-absorbing spring system absorbs the vibration energy of the screen box through elastic deformation, reducing the amplitude of the vibration transmitted to the frame.

[0014] Preferably, the rotary drum screen mechanism includes a drum frame, a second screen, a spiral lifting plate, and a guide plate. The drum frame is inclined and mounted on the frame at the bottom outlet of the screen box. The drum frame is rotatably connected to the frame. The second screen is installed inside the drum frame and is detachably connected to the drum frame. The spiral lifting plate is installed inside the second screen and is detachably connected to the second screen. The guide plate is mounted on the frame of the rotary drum screen mechanism on the side away from the vibrating screen mechanism and is detachably connected to the frame.

[0015] By adopting the above technical solution, fine particles fall through the second screen during the rotation of the drum frame, while coarse particles move towards the discharge end along the inner wall of the drum. The spiral lifting plates are spirally distributed along the drum axis, lifting the material to a high position and then scattering it as the drum rotates, breaking the material accumulation state, making the material fully loose and in contact with the screen, and preventing fine particles from being covered by coarse particles and unable to pass through the screen. The guide plate can guide the undersize material to fall evenly into the subsequent equipment, avoiding material scattering that causes waste or pollution.

[0016] Preferably, a gear mechanism is provided at one end of the outer side of the roller frame, and a power mechanism and an auxiliary gear are provided at the corresponding frame position of the gear mechanism. The power mechanism includes a motor, a reducer, a coupling and a main gear. The motor is connected to the main gear through the reducer and the coupling. The motor provides power to the main gear. The main gear rotates in cooperation with the gear mechanism. The auxiliary gear is rotatably connected to the frame to assist the rotation of the gear mechanism.

[0017] Preferably, an auxiliary wheel mechanism is provided at the other end of the outer side of the roller frame. The auxiliary wheel mechanism is fixedly connected to the roller frame. A plurality of rotating wheels are provided at the frame corresponding to the auxiliary wheel mechanism. The rotating wheels are rotatably connected to the frame and assist the roller frame in rotating through the auxiliary wheel mechanism.

[0018] By adopting the above technical solution, the rotating wheel is rotatably connected to the frame, the rotating wheel cooperates with the auxiliary wheel mechanism, and the auxiliary wheel mechanism and the rotating wheel on the frame form multi-point support, so as to evenly distribute the weight of the roller frame and the material load on the frame.

[0019] Preferably, the receiving mechanism includes a conveyor belt mechanism and a receiving box. The conveyor belt mechanism is installed on the frame at the bottom of the vibrating screen mechanism and the drum screen mechanism. The conveyor belt mechanism is detachably connected to the frame and is inclined and parallel to the drum frame. The receiving box is installed at one end of the conveyor belt mechanism and is detachably connected to the frame.

[0020] By adopting the above technical solution, the conveyor belt mechanism and the drum frame are set in parallel and inclined. Through the dual action of gravity and the traction force of the conveyor belt, the screened material is ensured to be conveyed upward along the conveyor belt to the receiving box, avoiding material accumulation or backflow caused by simple gravity falling. The conveyor belt mechanism can collect the discharge of the vibrating screen and the drum screen in real time, avoiding the screening equipment from stopping and waiting due to the overflow of the receiving box.

[0021] In summary, this application includes at least one of the following beneficial technical effects: The detachable first screen inside the screen box can be quickly replaced with screens of different apertures according to the characteristics of the material. The vibrator causes the material to be thrown on the screen through a controllable vibration frequency and amplitude, which avoids particles clogging the screen holes and accelerates the speed at which fine particles pass through the screen. The material screened by the vibrating screen mechanism falls directly into the lower drum screen mechanism to form a multi-stage screen.

[0022] Fine particles fall through the second screen as the drum frame rotates, while coarse particles move along the inner wall of the drum towards the discharge end. The spiral lifting plates are distributed spirally along the drum axis, lifting the material to a high position and then scattering it as the drum rotates, breaking up the material accumulation state, making the material fully loose and in contact with the screen, preventing fine particles from being covered by coarse particles and unable to pass through the screen. The guide plate can guide the undersize material to fall evenly into the subsequent equipment, avoiding material scattering that causes waste or pollution. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the embodiment.

[0024] Figure 2 This is a cross-sectional schematic diagram of the power mechanism and the drum screen mechanism in the embodiment.

[0025] Figure 3 This is a cross-sectional schematic diagram of the internal structure of the feeding mechanism and the internal structure of the vibrating screen mechanism in the embodiment.

[0026] Explanation of reference numerals in the attached drawings: 1. Feeding mechanism; 11. Storage tank; 12. Screw feeder mechanism; 2. Vibrating screen mechanism; 21. Screen box; 22. First screen; 23. Vibrator; 24. Shock-absorbing spring system; 3. Drum screen mechanism; 31. Drum frame; 32. Second screen; 33. Spiral lifting plate; 34. Guide plate; 35. Gear mechanism; 36. Auxiliary wheel mechanism; 4. Power mechanism; 41. Electric motor; 42. Reducer; 43. Coupling; 44. Main gear; 5. Auxiliary gear; 6. Rotating wheel; 7. Receiving mechanism; 71. Conveyor belt mechanism; 72. Receiving box; 8. Frame. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0028] This application discloses a fertilizer screening device. (Refer to...) Figure 1 and 2The system includes a feeding mechanism 1, a vibrating screen mechanism 2, a drum screen mechanism 3, a receiving mechanism 7, and a frame 8. A power mechanism 4, an auxiliary gear 5, and a rotating wheel 6 are provided on the frame 8 and the drum screen mechanism 3. The feeding mechanism 1 is mounted on the frame 8 and located on the vibrating screen mechanism 2. The feeding mechanism 1 is bolted to the frame 8. Fertilizer enters the vibrating screen mechanism 2 through the feeding mechanism 1. The vibrating screen mechanism 2 is connected to the outlet of the feeding mechanism 1. A shock-absorbing spring system 24 is provided between the vibrating screen mechanism 2 and the frame 8. The shock-absorbing spring system 24 is bolted to both the vibrating screen mechanism 2 and the frame 8 to reduce the vibration of the vibrating screen mechanism 2 on the frame 8. The outlet of the vibrating screen mechanism 2 is located inside the drum screen mechanism 3.

[0029] The rotary drum screen mechanism 3 includes a drum frame 31, a second screen 32, a spiral lifting plate 33, and a guide plate 34. The drum frame 31 is rotatably connected to the frame 8. The second screen 32 is installed inside the drum frame 31 and is detachably connected to the drum frame 31. The spiral lifting plate 33 is installed on the drum frame 31 and is bolted to the drum frame 31. The guide plate 34 is installed on the frame 8 at one end of the drum frame 31 to guide the residual part after screening. A gear mechanism 35 and an auxiliary wheel mechanism 36 are provided on the outside of the drum frame 31. An auxiliary gear 5 and a power mechanism 4 installed on the frame 8 cooperate with the gear mechanism 35. 4 includes a motor 41, a reducer 42, a coupling 43, and a main gear 44. The motor 41 is connected to the main gear 44 through the reducer 42 and the coupling 43, providing power to the main gear 44. The main gear 44 cooperates with the gear mechanism 35 to rotate the drum frame 31. The auxiliary wheel mechanism 36 cooperates with the rotating wheel 6 to assist the rotation of the drum frame 31. The receiving mechanism 7 includes a conveyor belt mechanism 71 and a receiving box 72. The conveyor belt mechanism 71 is installed on the frame 8 at the bottom of the vibrating screen mechanism 2 and the drum screen mechanism 3. The conveyor belt mechanism 71 and the drum screen mechanism 3 are both inclined and parallel to each other.

[0030] Reference Figure 3 The feeding mechanism 1 includes a storage tank 11 and a screw feeder 12. The vibrating screen mechanism 2 includes a screen box 21, a first screen 22, and a vibrator 23. The screw feeder 12 is installed inside the storage tank 11. The storage tank 11 is rotatably connected to the screw feeder 12. The storage tank 11 has a feed inlet at the top and a discharge outlet at the bottom. The discharge outlet of the storage tank 11 is detachably connected to the inlet of the screen box 21. The vibrator 23 is installed on one side of the screen box 21. The vibrator 23 is detachably connected to the screen box 21. The first screen 22 is installed inside the screen box 21. The screen box 21 is detachably connected to the first screen 22. When the fertilizer reaches the screen box 21 and passes through the first screen 22, the first screening is completed. The outlet of the screen box 21 is placed inside the drum screen mechanism 3 so that the fertilizer after the first screening reaches the drum screen mechanism 3.

[0031] The working principle of a fertilizer screening device in this application is as follows: Fertilizer enters the storage tank 11 through the inlet on the storage tank 11 in the feeding mechanism 1. The storage tank 11 is installed on the frame 8 above the vibrating screen mechanism 2. The movement of the screw feeding mechanism 12 causes the fertilizer in the storage tank 11 to pass evenly and continuously through the outlet of the storage tank 11 into the screen box 21 of the vibrating screen mechanism 2. A vibrator 23 is installed on one side of the screen box 21. A first screen 22 is installed inside the screen box 21. The vibration of the vibrator 23 causes the fertilizer to pass through the first screen 22 to complete the first screening. The screen box 21 is installed on the frame 8 through a shock-absorbing spring system 24 to reduce the impact of the vibration of the vibrator 23 on the movement of other mechanisms. The outlet at the bottom of the screen box 21 is placed inside the drum screen mechanism 3. A second screen 32 and a screw feeder are installed inside the drum frame 31. The lifting plate 33 and the external gear mechanism 35 and auxiliary wheel mechanism 36 are provided on the drum frame 31. The motor 41 is connected to the main gear 44 through the coupling 43 and the reducer 42. The motor 41 provides rotation for the main gear 44. The gear mechanism 35 cooperates with the main gear 44 and the auxiliary gear 5 installed on the frame 8. The auxiliary wheel mechanism 36 cooperates with the rotating wheel 6 on the corresponding frame 8 to make the drum frame 31 rotate. The rotating drum frame 31 screens the fertilizer through the second screen 32 and the spiral lifting plate 33. The screened fertilizer enters the conveyor belt mechanism 71 installed on the frame 8 below the drum screen mechanism 3 and the vibrating screen mechanism 2. It enters the receiving box 72 through the conveyor belt mechanism 71. The guide plate 34 is installed on the frame 8 below the drum frame 31 to discharge the residual fertilizer screened by the drum screen mechanism 3.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fertilizer screening device, characterized in that: The system includes a feeding mechanism (1), a vibrating screen mechanism (2), a drum screen mechanism (3), a receiving mechanism (7), and a frame (8). The feeding mechanism (1) is mounted on the frame (8) and is located above the vibrating screen mechanism (2). The feeding mechanism (1) is connected to the vibrating screen mechanism (2) and is detachably connected to the frame (8). The vibrating screen mechanism (2) is mounted on the frame (8) on one side of the drum screen mechanism (3) and is detachably connected to the frame (8). The drum screen mechanism (3) is mounted on the frame (8) and is rotatably connected to the frame (8). The receiving mechanism (7) is mounted on the frame (8) below the drum screen mechanism (3) and is detachably connected to the frame (8). The drum screen mechanism (3) is inclined.

2. The fertilizer screening device according to claim 1, characterized in that: The feeding mechanism (1) includes a storage tank (11) and a screw feeding mechanism (12). The storage tank (11) has a feed inlet at the top and a discharge outlet at the bottom. The storage tank (11) is detachably connected to the frame (8). The screw feeding mechanism (12) is installed inside the storage tank (11) and is rotatably connected to the storage tank (11).

3. The fertilizer screening device according to claim 1, characterized in that: The vibrating screen mechanism (2) includes a screen box (21), a first screen (22), and a vibrator (23). The top inlet of the screen box (21) is connected to the bottom outlet of the storage tank (11). The screen box (21) is installed on the frame (8) and is detachably connected to the frame (8). The first screen (22) is installed inside the screen box (21) and is detachably connected to the screen box (21). The vibrator (23) is installed on one side of the screen box (21) and is detachably connected to the screen box (21). The bottom outlet of the screen box (21) is placed inside the drum screen mechanism (3).

4. The fertilizer screening device according to claim 3, characterized in that: A shock-absorbing spring system (24) is provided between the frame (8) and the screen box (21). The screen box (21) is mounted on the frame (8) through the shock-absorbing spring system (24). The shock-absorbing spring system (24) is detachably connected to the screen box (21) and the frame (8).

5. The fertilizer screening device according to claim 1, characterized in that: The drum screen mechanism (3) includes a drum frame (31), a second screen (32), a spiral lifting plate (33), and a guide plate (34). The drum frame (31) is inclined and is mounted on the frame (8) at the bottom outlet of the screen box (21). The drum frame (31) is rotatably connected to the frame (8). The second screen (32) is installed inside the drum frame (31) and is detachably connected to the drum frame (31). The spiral lifting plate (33) is installed inside the second screen (32) and is detachably connected to the second screen (32). The guide plate (34) is mounted on the frame (8) of the drum screen mechanism (3) on the side away from the vibrating screen mechanism (2) and is detachably connected to the frame (8).

6. The fertilizer screening device according to claim 5, characterized in that: A gear mechanism (35) is provided at one end of the outer side of the roller frame (31). A power mechanism (4) and an auxiliary gear (5) are provided at the corresponding positions of the gear mechanism (35) and the frame (8). The power mechanism (4) includes a motor (41), a reducer (42), a coupling (43), and a main gear (44). The motor (41) is connected to the main gear (44) through the reducer (42) and the coupling (43). The motor (41) provides power to the main gear (44). The main gear (44) rotates in cooperation with the gear mechanism (35). The auxiliary gear (5) is rotatably connected to the frame (8) to rotate the auxiliary gear (5) mechanism (35).

7. The fertilizer screening device according to claim 5, characterized in that: An auxiliary wheel mechanism (36) is provided at the other end of the outside of the roller frame (31). The auxiliary wheel mechanism (36) is fixedly connected to the roller frame (31). A plurality of rotating wheels (6) are provided at the frame (8) corresponding to the auxiliary wheel mechanism (36). The rotating wheels (6) are rotatably connected to the frame (8). The rotating wheels (6) assist the roller frame (31) in rotating through the auxiliary wheel mechanism (36).

8. The fertilizer screening device according to claim 1, characterized in that: The receiving mechanism (7) includes a conveyor belt mechanism (71) and a receiving box (72). The conveyor belt mechanism (71) is installed on the frame (8) at the bottom of the vibrating screen mechanism (2) and the drum screen mechanism (3). The conveyor belt mechanism (71) is detachably connected to the frame (8). The conveyor belt mechanism (71) is inclined and parallel to the drum frame (31). The receiving box (72) is installed at one end of the conveyor belt mechanism (71). The receiving box (72) is detachably connected to the frame (8).

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