Chemical fertilizer raw material crushing device
By installing a filter screen and a guide locking mechanism in the fertilizer raw material crushing device, the problem of uneven particle diameter after crushing is solved, achieving efficient crushing and uniform mixing of fertilizer raw materials, and improving fertilizer quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-03-31
AI Technical Summary
Existing fertilizer raw material crushers produce some particles with excessively large diameters after crushing, which cannot meet the process requirements of subsequent steps, resulting in uneven mixing and affecting fertilizer quality.
A fertilizer raw material crushing device was designed. By setting a filter screen and guiding and locking mechanism at the discharge pipe, and using elastic components and driving mechanism, excessively large particles are intercepted on the filter screen, and can be easily disassembled for secondary crushing, ensuring that particles that meet the process requirements can pass smoothly.
It effectively intercepts and re-crushes excessively large particles, ensuring the quality of fertilizer granulation, simplifying the operation process, and improving the processing efficiency and product uniformity of subsequent processes.
Smart Images

Figure CN224057975U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fertilizer production and processing technology, specifically to a fertilizer raw material crushing device. Background Technology
[0002] In the field of fertilizer production, efficient and precise raw material processing plays a key role in ensuring fertilizer quality and production efficiency. In order to improve reactivity, meet process requirements, and promote the uniformity of mixing, fertilizer raw materials need to be crushed during fertilizer production. As the core equipment in the initial stage of production, the performance of fertilizer raw material crusher directly affects a series of subsequent processes.
[0003] While existing fertilizer raw material crushers can crush raw materials, issues such as crusher wear, differences in raw material characteristics, or unreasonable crusher operating parameters often result in a small number of excessively large particles after crushing. These oversized particles cannot meet the process requirements of subsequent mixing and granulation, leading to uneven mixing, affecting the uniformity of fertilizer nutrient distribution, and ultimately impacting granulation quality. Therefore, we propose a fertilizer raw material crushing device. Utility Model Content
[0004] The purpose of this utility model is to provide a fertilizer raw material crushing device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fertilizer raw material crushing device, comprising a body and an inlet pipe and an outlet pipe respectively disposed at the upper and lower ends of the body. Square plates are symmetrically fixedly connected to the lower edges of the two side walls of the outlet pipe. T-shaped grooves are formed at the lower ends of both square plates. T-shaped blocks are attached to the inner walls of both T-shaped grooves. Elastic components are provided between each T-shaped block and each T-shaped groove. A concave plate is fixedly connected to the lower ends of both T-shaped blocks. A square frame is attached to the inner wall of the concave plate. A filter screen is fixedly connected to the lower edge of the inner wall of the square frame. A guiding mechanism and a locking mechanism are respectively provided between the square frame and the concave plate. A concave handle is fixedly connected to the middle of the front end of the square frame. A driving mechanism is provided between the rear end of the concave plate and the rear end of the outlet pipe.
[0006] Preferably, the elastic component includes a guide post, which is fixedly connected to the front end of the T-shaped block near the upper edge, and the front end of the guide post moves through the front end of the square plate. A spring is slidably sleeved on the outer wall of the guide post, and the spring is fixedly connected between the inner front end of the T-shaped groove and the front end of the T-shaped block.
[0007] Preferably, the guiding mechanism includes two T-shaped grooves and two T-shaped plates. The two T-shaped grooves are symmetrically opened on the inner side walls of the concave plate, and the two T-shaped plates are symmetrically fixedly connected to the side walls of the frame. The two T-shaped plates are slidably engaged with the two T-shaped grooves respectively.
[0008] Preferably, the locking mechanism includes a knob screw and a screw hole. The knob screw is screwed through and tightened in the inner wall of one side wall of the concave plate near the front edge. The screw hole is opened in the side wall of the square corresponding to the knob screw near the front edge, and the screw hole and the knob screw are threaded together.
[0009] Preferably, the driving mechanism includes a carrier plate, which is fixedly connected to the lower rear edge of the discharge pipe, and a motor is fixedly installed at the upper end of the carrier plate. The output shaft of the motor slides through the lower end of the carrier plate, and a connecting column is fixedly connected to the end of the output shaft of the motor. The connecting column is close to the middle of the rear end of the concave plate, and protrusions are symmetrically fixedly connected to the outer wall of the connecting column. Both of the protrusions are semi-cylindrical.
[0010] Preferably, reinforcing ribs are symmetrically fixedly connected between the upper front edge of the carrier plate and the rear end of the discharge pipe near the lower edge.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: through the cooperation of the discharge pipe, square plate, T-shaped groove, T-shaped block, elastic component, concave plate, square frame, filter screen, guiding mechanism, locking mechanism, concave handle and driving mechanism, a small amount of fertilizer raw material particles with excessive diameter after being crushed by the machine body can be intercepted on the filter screen. At the same time, fertilizer raw material particles that meet the requirements of subsequent processing can fall smoothly through the mesh of the filter screen. Moreover, the concave plate is easy to disassemble and assemble from the square frame, which makes it convenient to put the excessively large particles accumulated on the filter screen back into the machine body for secondary crushing, thereby ensuring the quality of subsequent fertilizer granulation. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This is a schematic diagram showing some components between the discharge pipe and the filter screen of this utility model;
[0014] Figure 3 This is a diagram showing some of the components between the square plate and the T-shaped block of this utility model;
[0015] Figure 4 This is a cross-sectional view of the square plate of this utility model;
[0016] Figure 5 This is a diagram illustrating the T-shaped block, guide post, and spring of this utility model.
[0017] Figure 6This is a diagram illustrating the square frame, concave handle, filter screen, T-shaped plate, and screw holes of this utility model.
[0018] Figure 7 This is a diagram illustrating the drive mechanism of this utility model;
[0019] Figure 8 This is a diagram illustrating the concave plate and T-groove of this utility model.
[0020] The components represented by each number in the attached diagram are listed below: 1. Machine body; 2. Feed pipe; 3. Discharge pipe; 4. Concave plate; 5. Square frame; 6. Concave handle; 7. Filter screen; 8. T-slot one; 9. Square plate; 10. T-plate; 11. Knob screw; 12. T-block; 13. T-slot two; 14. Guide post; 15. Spring; 16. Screw hole; 17. Carrier plate; 18. Motor; 19. Connecting column; 20. Protrusion; 21. Reinforcing rib. Detailed Implementation
[0021] 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.
[0022] This utility model provides a technical solution: such as Figure 1 - Figure 8 The fertilizer raw material crushing device shown includes a body 1 and a feed pipe 2 and a discharge pipe 3 respectively disposed at the upper and lower ends of the body 1. Square plates 9 are symmetrically fixedly connected to the lower edges of the two side walls of the discharge pipe 3. T-shaped grooves 13 are opened at the lower ends of the two square plates 9. T-shaped blocks 12 are attached to the inner walls of the two T-shaped grooves 13. Elastic components are provided between the two T-shaped blocks 12 and the two T-shaped grooves 13 respectively. A concave plate 4 is fixedly connected to the lower ends of the two T-shaped blocks 12. A square frame 5 is attached to the inner wall of the concave plate 4. A filter screen 7 is fixedly connected to the lower edge of the inner wall of the square frame 5. A guide mechanism and a locking mechanism are respectively provided between the square frame 5 and the concave plate 4. A concave handle 6 is fixedly connected to the middle of the front end of the square frame 5. A drive mechanism is provided between the rear end of the concave plate 4 and the rear end of the discharge pipe 3.
[0023] The elastic component includes a guide post 14, which is fixedly connected to the front end of the T-shaped block 12 near the upper edge. The front end of the guide post 14 extends through the front end of the square plate 9. A spring 15 is slidably sleeved on the outer wall of the guide post 14. The spring 15 is fixedly connected between the inner front end of the T-shaped groove 13 and the front end of the T-shaped block 12.
[0024] The guiding mechanism includes two T-shaped grooves 8 and two T-shaped plates 10. The two T-shaped grooves 8 are symmetrically opened on the inner side walls of the concave plate 4, and the two T-shaped plates 10 are symmetrically fixedly connected to the side walls of the frame 5, and the two T-shaped plates 10 are respectively slidably engaged with the two T-shaped grooves 8.
[0025] The locking mechanism includes a knob screw 11 and a screw hole 16. The knob screw 11 is screwed through and tightened in the inner wall of one side wall of the concave plate 4 near the front edge. The screw hole 16 is opened in the side wall of the square 5 corresponding to the knob screw 11 near the front edge, and the screw hole 16 and the knob screw 11 are threaded together.
[0026] The drive mechanism includes a carrier plate 17, which is fixedly connected to the lower rear edge of the discharge pipe 3. A motor 18 is fixedly installed on the upper end of the carrier plate 17. The output shaft of the motor 18 slides through the lower end of the carrier plate 17. A connecting column 19 is fixedly connected to the end of the output shaft of the motor 18. The connecting column 19 is close to the middle of the rear end of the concave plate 4. Protrusions 20 are symmetrically fixedly connected to the outer wall of the connecting column 19. Both protrusions 20 are semi-cylindrical.
[0027] A reinforcing rib 21 is symmetrically fixedly connected between the upper front edge of the carrier plate 17 and the rear end near the lower edge of the discharge pipe 3; specifically, the setting of the reinforcing rib 21 can make the connection between the carrier plate 17 and the discharge pipe 3 more stable.
[0028] Working principle: Fertilizer raw materials enter the machine body 1 through the feed pipe 2 for crushing. The crushed fertilizer raw materials will be discharged through the discharge pipe 3 and fall onto the filter screen 7 in the frame 5. The crushed fertilizer raw materials will fall through the mesh of the filter screen 7 (the fertilizer raw materials falling through the mesh of the filter screen 7 can be collected by the collection box for subsequent processing, or they can be directly transported to the next processing point by the conveying equipment, which will not be elaborated here).
[0029] To facilitate the smooth passage of crushed fertilizer raw materials through the mesh of filter screen 7 and prevent them from accumulating on the filter screen 7, the motor 18 on the carrier plate 17 can be connected to an external power source. The output shaft of the motor 18 will drive the connecting column 19 to rotate, which in turn will cause the two protrusions 20 on the connecting column 19 to rotate together. When one of the protrusions 20 contacts the concave plate 4, the protrusion 20 will cause the concave plate 4 to move forward. The concave plate 4 will then cause the square frame 5 and the filter screen 7 on the square frame 5 to move forward together. The concave plate 4 will also cause the two T-shaped blocks 12 to slide forward in their respective T-shaped grooves 13 within the square plate 9. The two T-shaped blocks 12 will then cause their respective guide posts 14 to slide forward in their respective... The corresponding square plate 9 slides forward in the inner wall (during this process, the springs 15 between the two T-shaped blocks 12 and their respective corresponding T-shaped grooves 13 will be squeezed on the outer wall of their respective guide posts 14). When the protrusion 20 rotates away from the concave plate 4, under the force of the two springs 15, the two T-shaped blocks 12 will automatically reset and drive the concave plate 4 to reset, so that the square frame 5 and the filter screen 7 can be reset. Similarly, when the other protrusion 20 passes through the concave plate 4, it can also make the filter screen 7 move back and forth. As the connecting column 19 rotates continuously, the filter screen 7 can move back and forth continuously to form a shaking effect, so that the crushed fertilizer raw materials that meet the requirements of subsequent processing can fall smoothly through the mesh of the filter screen 7.
[0030] The fertilizer material remaining on the filter screen 7 is too large in diameter to meet the requirements of the next processing step and needs to be crushed again. When the amount of fertilizer material with a large diameter accumulated on the filter screen 7 reaches a certain level, the knob screw 11 can be turned outward. The knob screw 11 will rotate outward in the inner wall of the concave plate 4 and will also rotate outward in the screw hole 16 on the square frame 5 until the knob screw 11 is completely turned away from the screw hole 16. Then, pull the concave handle 6 forward. The concave handle 6 will drive the square frame 5 to slide forward on the concave plate 4. During this process, the two T-shaped plates 10 on the square frame 5 will slide forward in their respective T-shaped grooves 8 on the concave plate 4 until the square frame 5 is completely away from the concave plate 4. Then, the fertilizer material with a large diameter remaining on the filter screen 7 can be put back into the machine body 1 for secondary crushing. Similarly, the square frame 5 can be reset by following the reverse operation. The operation is simple.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] 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. A fertilizer raw material crushing device, comprising a machine body (1) and a feeding pipe (2) and a discharging pipe (3) arranged at the upper and lower ends of the machine body (1) respectively, characterized in that: Both side walls of the discharge pipe (3) are symmetrically fixedly connected with square plates (9) at lower edges, T-shaped grooves two (13) are formed in lower ends of the two square plates (9), T-shaped blocks (12) are attached to inner walls of the two T-shaped grooves two (13), elastic assemblies are arranged between the two T-shaped blocks (12) and the two T-shaped grooves two (13), respectively, a concave plate (4) is fixedly connected with lower ends of the two T-shaped blocks (12), a square frame (5) is attached to an inner wall of the concave plate (4), a filter screen (7) is fixedly connected with an inner wall lower edge of the square frame (5), guide mechanisms and locking mechanisms are arranged between the square frame (5) and the concave plate (4), respectively, a concave handle (6) is fixedly connected with a front end middle portion of the square frame (5), and a driving mechanism is arranged between a rear end of the concave plate (4) and a rear end of the discharge pipe (3).
2. The chemical fertilizer raw material crushing device according to claim 1, characterized in that: The elastic assembly comprises guide columns (14), the guide columns (14) are fixedly connected with front ends of the T-shaped blocks (12) near upper edges, front ends of the guide columns (14) are movably penetrated through front ends of the square plates (9), and outer walls of the guide columns (14) are slidably sleeved with springs (15), the springs (15) are fixedly connected between inner side front ends of the T-shaped grooves two (13) and the front ends of the T-shaped blocks (12).
3. The chemical fertilizer raw material crushing device according to claim 1, characterized in that: The guide mechanism comprises two T-shaped grooves one (8) and two T-shaped plates (10), the two T-shaped grooves one (8) are symmetrically formed in inner side two side walls of the concave plate (4), the two T-shaped plates (10) are symmetrically fixedly connected with two side walls of the square frame (5), and the two T-shaped plates (10) are slidably matched with the two T-shaped grooves one (8), respectively.
4. The chemical fertilizer raw material crushing device according to claim 3, characterized in that: The locking mechanism comprises knob screws (11) and screw holes (16), the knob screws (11) are penetrated and screwed in inner walls of one side wall of the concave plate (4) near front edges, the screw holes (16) are formed in side walls of the square frame (5) near front edges corresponding to the knob screws (11), and the screw holes (16) are threadedly matched with the knob screws (11).
5. The chemical fertilizer raw material crushing device according to claim 1, characterized in that: The driving mechanism comprises a carrier plate (17), the carrier plate (17) is fixedly connected with a rear end lower edge of the discharge pipe (3), a motor (18) is fixedly installed on an upper end of the carrier plate (17), an output shaft of the motor (18) is slidably penetrated through a lower end of the carrier plate (17), a connecting column (19) is fixedly connected with an end of the output shaft of the motor (18), the connecting column (19) is near a rear end middle portion of the concave plate (4), and outer walls of the connecting column (19) are symmetrically fixedly connected with protruding blocks (20), the two protruding blocks (20) are both semicylindrical.
6. The chemical fertilizer raw material crushing device according to claim 5, characterized in that: Symmetrically fixedly connected between an upper end front edge of the carrier plate (17) and a rear end near a lower edge of the discharge pipe (3) are reinforcing ribs (21).