Slow-release synergistic nitrogen-phosphorus-potassium compound fertilizer production equipment

By introducing an automatic cleaning device and an automatic opening and closing structure for the crusher into the nitrogen, phosphorus, and potassium compound fertilizer production equipment, the problem of deposits on the inner wall of the mixer was solved, ensuring the uniformity of compound fertilizer components and the cleanliness of the production environment, thereby improving product quality and equipment stability.

CN223887887UActive Publication Date: 2026-02-10ZHEJIANG JULONG FERTILIZER CO LTD
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Patent Information

Application Number
CN202520328343.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-02-10
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

In existing nitrogen, phosphorus, and potassium compound fertilizer production equipment, highly viscous and corrosive chemicals in the raw materials of compound fertilizer tend to adhere to the inner wall of the mixer, resulting in uneven mixing and affecting product quality and slow-release synergistic performance.

Method used

A slow-release, synergistic nitrogen, phosphorus, and potassium compound fertilizer production equipment was designed. The equipment uses a motor-driven rotating rod to drive the connecting ring and connecting plate. The cleaning brush automatically rotates to clean the inner wall of the mixer through a spring and slider assembly. The crusher automatically opens and closes by utilizing the gravity of the raw materials and the spring reset, thus reducing dust pollution.

Benefits of technology

It enables automatic cleaning of the mixer's inner wall, improves mixing uniformity, reduces dust pollution, and ensures stable equipment operation and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of compound fertilizer production equipment, and discloses slow-release synergistic nitrogen-phosphorus-potassium compound fertilizer production equipment which comprises a bottom plate, the top of the bottom plate is fixedly connected with a stirring machine, the top of the stirring machine is fixedly connected with a motor, the driving end of the motor is fixedly connected with a rotating rod, and the rotating rod is fixedly connected with a rotating shaft. A plurality of connecting rings are fixedly connected to the exterior of the rotating rod, connecting plates are fixedly connected to the front side and the rear side of each connecting ring correspondingly, two first sliding grooves are formed in one connecting plate, first springs are fixedly connected to the inner walls of the rear sides of the first sliding grooves, and first sliding blocks are fixedly connected to the front sides of the first springs; the front side of the first sliding block is fixedly connected with a second spring. The cleaning brush can automatically rotate to clean the inner wall of the stirring machine, the cleaning efficiency is greatly improved, damage caused by cleaning blockage is avoided, stable operation of equipment is guaranteed, and it is guaranteed that the stirring machine is continuously kept in a clean state.
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Description

Technical Field

[0001] This utility model relates to the technical field of compound fertilizer production equipment, and in particular to a slow-release and enhanced nitrogen, phosphorus and potassium compound fertilizer production equipment. Background Technology

[0002] Various nitrogen, phosphorus, and potassium-containing raw materials and slow-release agents are crushed and ground using crushers and grinders. The raw materials are then screened to ensure uniform particle size, preparing for precise proportioning and mixing in the subsequent process. The pre-treated raw materials are then transported to a mixer in a specific ratio using a high-precision metering device for thorough mixing. The mixture is then granulated using a rotary drum granulator and an extrusion granulator to form compound fertilizer granules of a certain shape and size. After the granules are dried in a dryer and cooled in a cooler, qualified granules are screened out by a screening machine. Finally, a coating machine is used to evenly coat the surface of the compound fertilizer granules with a coating material that enhances their effectiveness, thereby achieving the slow-release and synergistic effect.

[0003] According to the formula requirements, nitrogen, phosphorus, potassium raw materials and slow-release synergists are accurately weighed using a metering device and fed into a mixing device via a conveying equipment. Under the action of stirring, the various raw materials are evenly mixed to ensure balanced nutrient distribution. The mixed material enters the granulation equipment, where mechanical force and physical action, such as the rolling of a rotary drum granulator or the rotation of a disc granulator, cause the material to agglomerate into granules with specific shapes and sizes under certain humidity and temperature conditions, forming the basic form of compound fertilizer. After granulation, or through a specific coating device, materials with slow-release function, such as polymers or waxes, are evenly coated on the surface of the compound fertilizer granules, or the synergists are fully combined with the granules. By controlling the nutrient release rate, the purpose of slow-release synergism is achieved, thereby improving the utilization rate of fertilizer.

[0004] In existing technologies, some nitrogen, phosphorus, and potassium compound fertilizer production equipment suffers from various components in the raw materials, such as highly viscous organic matter and corrosive chemicals, which continuously adhere to the inner wall of the mixer. If these residues are not removed in a timely and thorough manner, they will not only gradually accumulate and occupy the internal space of the mixer, affecting the mixing effect of subsequent materials, thus leading to uneven composition of the compound fertilizer and reduced product quality, but also react chemically with newly added raw materials, changing the chemical properties of the fertilizer and affecting its slow-release and synergistic performance. Therefore, a slow-release and synergistic nitrogen, phosphorus, and potassium compound fertilizer production equipment is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a slow-release, enhanced-efficiency nitrogen, phosphorus, and potassium compound fertilizer production equipment, aiming to improve the problem of uneven compound fertilizer composition and reduced product quality in the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A slow-release, synergistic nitrogen, phosphorus, and potassium compound fertilizer production equipment includes a base plate. A mixer is fixedly connected to the top of the base plate, and a motor is fixedly connected to the top of the mixer. A rotating rod is fixedly connected to the drive end of the motor. Multiple connecting rings are fixedly connected to the outside of the rotating rod. Connecting plates are fixedly connected to the front and rear sides of the connecting rings, respectively. One of the connecting plates has two sliding grooves. A spring is fixedly connected to the rear inner wall of the sliding groove. A slider is fixedly connected to the front side of the spring. A second spring is fixedly connected to the front side of the slider. A connecting rod is rotatably connected to the opposite side of the two sliders. A connecting plate is rotatably connected to the front side of the two connecting rods. A connecting frame is fixedly connected to the front side of the connecting plate. A crusher is fixedly connected to the top of the base plate. A portable component is fixedly connected to the bottom of the crusher to reduce dust flying during raw material crushing.

[0008] As a further description of the above technical solution:

[0009] The portable component includes a connecting frame, the interior of which is provided with multiple sliding grooves 2. A spring 3 is fixedly connected to the bottom inner wall of one of the sliding grooves 2, a slider 2 is fixedly connected to the top of the spring 3, and a connecting block is rotatably connected to the rear side of the slider 2.

[0010] As a further description of the above technical solution:

[0011] A rotating plate is fixedly connected to the rear side of the connecting block, and a fixing rod is fixedly connected to the inner wall of the connecting frame;

[0012] As a further description of the above technical solution:

[0013] A cleaning brush is rotatably connected inside the connecting frame, a conveyor belt is fixedly connected to the top of the base plate, and a dryer is fixedly connected to the top of the base plate.

[0014] As a further description of the above technical solution:

[0015] A coating machine is fixedly connected to the top of the base plate, and a feed inlet is fixedly connected to the top of the mixer;

[0016] As a further description of the above technical solution:

[0017] Stirring blocks are fixedly connected to the left and right sides of the connecting ring, and the outside of the slider is slidably connected to the inside of the groove.

[0018] As a further description of the above technical solution:

[0019] The front side of the second spring is fixedly connected to the inner wall of the front side of the first slide groove, and the outside of the second slider is slidably connected to the inside of the second slide groove.

[0020] As a further description of the above technical solution:

[0021] The rotating plate is rotatably connected to the outside of the fixed rod, and the top of the connecting frame is fixedly connected to the bottom of the crusher.

[0022] The beneficial effects of this utility model are as follows:

[0023] (1) This utility model drives the rotating rod to rotate via a motor, which in turn drives the connecting ring to rotate. The connecting ring drives the connecting plate to rotate, which in turn drives the slider one and the connecting rod to rotate. This, in turn, drives the connecting plate to rotate the connecting frame and the cleaning brush to clean the inner wall. The connecting plate and the connecting rod transmit force to the slider one, and the slider one moves back and forth to a certain extent under the action of the springs one and two for buffering. This achieves automatic rotation of the cleaning brush to clean the inner wall of the mixer, greatly improving cleaning efficiency, avoiding damage due to cleaning obstruction, ensuring stable operation of the equipment, and ensuring that the mixer remains clean.

[0024] (2) This utility model uses the crushed raw material to descend and drive the rotating plate to rotate, and then drives the slider two to slide in the slide groove two through the connecting block, while squeezing the spring three. When the raw material has descended, the elastic action of the spring three pushes the slider two to reset, and then pulls the rotating plate to reset through the connecting block. Thus, the rotating plate is opened and closed by the gravity of the raw material and reset by the spring, achieving automatic opening and closing of the crusher. The structure is simple and practical, effectively reducing dust pollution in the workshop, improving the production environment, and protecting the health of the staff.

[0025] In summary, this utility model has advantages such as automatically rotating and cleaning the inner wall of the mixer and reducing dust pollution in the workshop. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a slow-release and enhanced nitrogen-phosphorus-potassium compound fertilizer production equipment proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the connecting plate of a slow-release and enhanced nitrogen-phosphorus-potassium compound fertilizer production equipment proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the connecting frame of a slow-release and enhanced nitrogen-phosphorus-potassium compound fertilizer production equipment proposed in this utility model;

[0029] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0030] Figure 5 for Figure 3Enlarged view of section B in the middle. Detailed Implementation

[0031] 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.

[0032] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or component 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 with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] Example 1

[0034] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a slow-release, synergistic nitrogen, phosphorus, and potassium compound fertilizer production equipment, including a base plate 1, which provides support for the upper device. A mixer 2 is fixedly connected to the top of the base plate 1. The mixer 2 is used to mix various raw materials. A motor 3 is fixedly connected to the top of the mixer 2. The motor 3 is the power source for the mixing and cleaning components. A rotating rod 4 is fixedly connected to the drive end of the motor 3. The rotating rod 4 receives the force from the motor 3 and rotates. Multiple connecting rings 5 ​​are fixedly connected to the outside of the rotating rod 4. The connecting rings 5 ​​then receive the force from the rotating rod 4 and rotate. Connecting plates 6 are fixedly connected to the front and rear sides of the connecting rings 5 ​​respectively. The connecting plates 6 provide installation space for the internal cleaning components.

[0035] One of the connecting plates 6 has two grooves 7. The grooves 7 provide fixation and support for the spring 8, and limit and guide the slider 9. The inner rear wall of the groove 7 is fixedly connected to the spring 8, which has an elastic function and provides elastic support for the slider 9. The front side of the spring 8 is fixedly connected to the slider 9, which provides limit and guide for the subsequent cleaning components. The front side of the slider 9 is fixedly connected to the second spring 10, which has the same function as the spring 8. After the slider 9 is subjected to force, it can push the slider 9 to reset through its own elasticity.

[0036] Two sliders 9 are rotatably connected to a connecting rod 11 on opposite sides. The connecting rod 11 connects the connecting plate 12 and the slider 9. The front of the two connecting rods 11 is rotatably connected to the connecting plate 12. The connecting plate 12 receives the force from the cleaning brush 14 and transmits the force to the connecting rod 11. The front of the connecting plate 12 is fixedly connected to a connecting frame 13, which provides fixation and support for the cleaning brush 14. The top of the base plate 1 is fixedly connected to a crusher 15, which is used to stir and mix the internal raw materials. The bottom of the crusher 15 is fixedly connected to a portable component that reduces dust flying during the crushing of raw materials.

[0037] Example 2

[0038] Reference Figure 3 and Figure 5 The portable component includes a connecting frame 16, which provides installation space for the portable component. The connecting frame 16 has multiple sliding grooves 17 inside, which provide fixation and support for springs 18 and limit and guide sliders 19. Spring 18 is fixedly connected to the bottom inner wall of one of the sliding grooves 17. Spring 18 has an elastic function and provides elastic support for slider 19. Slider 19 is fixedly connected to the top of spring 18. Slider 19 provides limit and guide for connecting block 20. Connecting block 20 is rotatably connected to the rear side of slider 19. Connecting block 20 is used to receive the force from rotating plate 21 and then transmit the force to slider 19.

[0039] Example 3

[0040] Reference Figures 1 to 3A rotating plate 21 is fixedly connected to the rear side of the connecting block 20. The rotating plate 21 is used to receive the power from the falling crushed raw material to rotate. When the raw material has fallen, the elastic action of the spring 3 18 pushes the slider 2 19 to reset, and then the connecting block 20 pulls the rotating plate 21 to reset, reducing dust leakage. A fixing rod 22 is fixedly connected to the inner wall of the connecting frame 16. The fixing rod 22 provides fixation and support for the rotating plate 21. A cleaning brush 14 is rotatably connected inside the connecting frame 13. The cleaning brush 14 is used to clean the inner wall of the mixer 2. A conveyor belt 23 is fixedly connected to the top of the bottom plate 1. The conveyor belt 23 is used to convey the crushed raw material to the inside of the mixer 2.

[0041] A dryer 24 is fixedly connected to the top of the base plate 1. The dryer 24 is used to dry the raw materials after mixing. A coating machine 25 is fixedly connected to the top of the base plate 1. The coating machine 25 evenly coats the surface of the compound fertilizer granules with materials with slow-release function, such as polymers and waxes, or makes the synergist fully combine with the granules. By controlling the release rate of nutrients, the purpose of slow release and synergistic effect is achieved, thereby improving the utilization rate of fertilizer. A feed inlet 26 is fixedly connected to the top of the mixer 2. The feed inlet 26 is used to place the raw materials inside the mixer 2. A stirring block 27 is fixedly connected to the left and right sides of the connecting ring 5. The stirring block 27 is used to stir the raw materials. The outside of the slider 9 is slidably connected to the inside of the slide groove 7. The slide groove 7 provides a limiting and guiding function for the stirring block 27.

[0042] The front side of spring 10 is fixedly connected to the inner wall of the front side of slide groove 7. Slide groove 7 provides fixation and support for spring 10. The outer side of slider 19 is slidably connected to the inside of slide groove 17. Slide groove 17 provides limiting and guiding functions for slider 19. The outer side of rotating plate 21 is rotatably connected to the outside of fixed rod 22. Fixed rod 22 provides fixation and support for rotating plate 21. The top of connecting frame 16 is fixedly connected to the bottom of crusher 15. Crusher 15 provides fixation and support for connecting frame 16.

[0043] Work steps

[0044] Step 1: During use, while the mixer 2 is mixing, the motor 3 drives the rotating rod 4 to rotate, which in turn drives the connecting ring 5 to rotate. The connecting ring 5 drives the connecting plate 6 to rotate, which in turn drives the slider 9 and the connecting rod 11 to rotate. This, in turn, drives the connecting plate 12 to rotate the connecting frame 13 and the cleaning brush 14 to clean the inner wall. When the cleaning brush 14 cannot clean in one go, it transmits force to the slider 9 through the connecting plate 12 and the connecting rod 11. Under the action of the springs 8 and 10, the slider moves back and forth to a certain extent to buffer the movement and prevent damage to the cleaning components. This achieves the purpose of cleaning the inner wall of the mixer 2, keeping the inside of the mixer 2 clean, and avoiding material residue that may affect the subsequent mixing effect.

[0045] Step 2: When the crusher 15 crushes the raw material, the crushed material descends and pushes the rotating plate 21 to rotate. This, in turn, drives the slider 19 to slide within the groove 17 via the connecting block 20, while simultaneously compressing the spring 18. After the material has descended, the elasticity of the spring 18 pushes the slider 19 to reset, which in turn pulls the rotating plate 21 to reset via the connecting block 20. During this process, the rotating plate 21 opens when the material descends and closes after the descent is complete, effectively reducing dust flying below the crusher 15, reducing dust pollution in the workshop, and improving the production environment.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A slow-release, synergistic nitrogen, phosphorus, and potassium compound fertilizer production equipment, comprising a base plate (1), characterized in that: A mixer (2) is fixedly connected to the top of the base plate (1), a motor (3) is fixedly connected to the top of the mixer (2), a rotating rod (4) is fixedly connected to the drive end of the motor (3), and multiple connecting rings (5) are fixedly connected to the outside of the rotating rod (4). Connecting plates (6) are fixedly connected to the front and rear sides of the connecting rings (5), and one of the connecting plates (6) has two sliding grooves (7). A spring (8) is fixedly connected to the rear inner wall of the sliding groove (7). The front of the spring (8) A slider 1 (9) is fixedly connected to the side. A spring 2 (10) is fixedly connected to the front side of the slider 1 (9). A connecting rod (11) is rotatably connected to the opposite side of the two sliders 1 (9). A connecting plate (12) is rotatably connected to the front side of the two connecting rods (11). A connecting frame (13) is fixedly connected to the front side of the connecting plate (12). A crusher (15) is fixedly connected to the top of the base plate (1). A portable component is fixedly connected to the bottom of the crusher (15) to reduce dust flying when the raw material is crushed.

2. The slow-release, synergistic nitrogen-phosphorus-potassium compound fertilizer production equipment according to claim 1, characterized in that: The portable component includes a connecting frame (16), and the connecting frame (16) has multiple sliding grooves (17) inside. A spring (18) is fixedly connected to the bottom inner wall of one of the sliding grooves (17), and a slider (19) is fixedly connected to the top of the spring (18). A connecting block (20) is rotatably connected to the rear side of the slider (19).

3. The slow-release, synergistic nitrogen-phosphorus-potassium compound fertilizer production equipment according to claim 2, characterized in that: A rotating plate (21) is fixedly connected to the rear side of the connecting block (20), and a fixing rod (22) is fixedly connected to the inner wall of the connecting frame (16).

4. The slow-release, synergistic nitrogen-phosphorus-potassium compound fertilizer production equipment according to claim 1, characterized in that: A cleaning brush (14) is rotatably connected inside the connecting frame (13), a conveyor belt (23) is fixedly connected to the top of the base plate (1), and a dryer (24) is fixedly connected to the top of the base plate (1).

5. The slow-release, synergistic nitrogen-phosphorus-potassium compound fertilizer production equipment according to claim 1, characterized in that: A coating machine (25) is fixedly connected to the top of the base plate (1), and a feed inlet (26) is fixedly connected to the top of the mixer (2).

6. The slow-release, synergistic nitrogen-phosphorus-potassium compound fertilizer production equipment according to claim 1, characterized in that: The left and right sides of the connecting ring (5) are respectively fixedly connected to the stirring block (27), and the outside of the slider (9) is slidably connected to the inside of the groove (7).

7. The slow-release, synergistic nitrogen-phosphorus-potassium compound fertilizer production equipment according to claim 2, characterized in that: The front side of the second spring (10) is fixedly connected to the inner wall of the front side of the first slide groove (7), and the outside of the second slider (19) is slidably connected to the inside of the second slide groove (17).

8. The slow-release, synergistic nitrogen-phosphorus-potassium compound fertilizer production equipment according to claim 3, characterized in that: The rotating plate (21) is rotatably connected to the outside of the fixed rod (22), and the top of the connecting frame (16) is fixedly connected to the bottom of the crusher (15).