A device for uniform mixing of compound fertilizer

Abstract

The utility model relates to compound fertilizer technical field, and disclose a kind of for compound fertilizer uniform mixing device, including mixing tank body and the electric control valve body being installed on mixing tank body, still including main drive assembly being installed on mixing tank body, transmission assembly and inner stirring vane being installed on main drive assembly, rotating disc being rotatably connected on mixing tank body, first mounting bracket being fixedly installed on rotating disc, outer ring stirring vane and scraper assembly being installed on rotating disc being fixedly installed on first mounting bracket, rotating disc is connected on transmission assembly output end. By setting outer ring stirring vane and inner stirring vane cooperation, can make compound fertilizer raw materials form stable and orderly circulating flow state in mixing tank body, the matching structure can avoid the phenomenon that material appears local accumulation, outside aggregation, ensure that all raw materials can fully participate in the stirring process.

Description

Technical Field

[0001] This utility model relates to the field of compound fertilizer technology, specifically to a device for uniformly mixing compound fertilizers. Background Technology

[0002] In the field of agricultural fertilizer production, the uniform mixing of compound fertilizers is a key step in ensuring fertilizer quality and stable efficacy. Among them, the equipment used for uniform mixing of compound fertilizers is the core equipment in the production process, and its performance directly affects the quality of the final product.

[0003] According to existing technology, a compound fertilizer uniform mixing device is disclosed (authorization announcement number: CN221933713U), which describes: This utility model discloses a compound fertilizer mixing device, belonging to the field of compound fertilizer technology. The compound fertilizer mixing device includes a base frame, a protruding frame installed on the top of the base frame, a feeding hopper provided on one side of the protruding frame, a mixing cylinder provided on one side of the feeding hopper, a motor installed on the top of the mixing cylinder, and a protective sleeve provided on the outside of the mixing cylinder. A feed inlet is fixedly provided on the upper part of the mixing cylinder, and a tray seat is provided on the lower part of the mixing cylinder. A fixing rod is fixedly connected to the back of the protruding frame. By setting the feeding hopper installed on one side of the protruding frame, different fertilizer raw materials can be poured into two feeding inlets first. The fertilizer raw materials are introduced into the mixing cylinder through the feeding pipe. The motor drives three sets of stirring blades on the rotating shaft to mix the fertilizer raw materials. The feeding inlet can be used to check the mixing effect. There is no need for manual labor to frequently lift the fertilizer raw materials and pour them into the mixing cylinder one by one, which is easy and convenient and reduces the intensity of manual labor.

[0004] However, based on the above, the following problems still exist: In use, when the stirring shaft starts rotating, the main stirring method is to use the power generated by the rotation to propel the material. During stirring, the stirring blades on the stirring shaft interact with the material, causing it to tumble and mix within the mixing drum. However, due to the limitations of a single stirring shaft design, the force exerted by the stirring blades on the material during rotation is not evenly distributed. Near the center of the stirring shaft, the material movement is relatively gentle, resulting in limited stirring effect; while at the edges of the stirring shaft, the pushing force exerted by the stirring blades on the material is greater. This uneven force distribution causes the material to be continuously pushed outwards by the rotating stirring blades during stirring. As the stirring time increases, more and more material is pushed to the outer area of ​​the mixing drum. This results in an unevenly distributed state of material within the mixing drum, with material accumulating on the outer edges and relatively less material in the central area. This accumulation not only severely affects the uniform mixing effect of the compound fertilizer, preventing the various raw materials from fully blending, but also leads to uneven fertilizer composition. Utility Model Content

[0005] The purpose of this invention is to provide a device for uniformly mixing compound fertilizers, in order to solve the problem mentioned in the background art that when a single stirring shaft is used for mixing, the material is easily pushed to the cylinder wall and accumulates, resulting in uneven dispersion inside and outside, which seriously affects the mixing effect of compound fertilizers.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a device for uniformly mixing compound fertilizer, comprising a mixing tank body and an electrically controlled valve body installed on the mixing tank body, further comprising a main drive assembly installed on the mixing tank body, a transmission assembly installed on the main drive assembly, an inner stirring blade, a rotating disk rotatably connected to the mixing tank body, a first mounting bracket fixedly installed on the rotating disk, an outer ring stirring blade fixedly installed on the first mounting bracket, and a scraper assembly installed on the rotating disk, wherein the rotating disk is connected to the output end of the transmission assembly; The main drive assembly can drive the inner stirring blades to rotate, and the transmission assembly can drive the rotating disk to rotate when the main drive assembly is working. When the rotating disk rotates, it can drive the outer ring stirring blades and scraper assembly to rotate.

[0007] In the preferred embodiment of this technical solution, the mixing tank body has a rotating groove at a position relative to the rotating disk, and the rotating disk is rotatably connected to the rotating groove.

[0008] Based on the preferred embodiment of this technical solution, both the outer ring stirring blade and the inner stirring blade are provided with wavy guide grooves, which are evenly distributed along the length of the blade.

[0009] In a preferred embodiment of this technical solution, the main drive assembly includes a first motor fixedly mounted on the mixing tank body and a rotating shaft fixedly connected to the output end of the first motor. The inner stirring blades are fixedly mounted on the rotating shaft, and the transmission assembly is connected between the rotating shaft and the rotating disk. The first motor can drive the rotating shaft to rotate.

[0010] According to the preferred embodiment of this technical solution, the transmission component includes a first sprocket fixedly mounted on a rotating shaft, a first gear rotatably connected to the mixing tank body, a second sprocket fixedly mounted on the first gear, and a chain meshing between the first sprocket and the second sprocket. The first gear meshes with the tooth groove of the rotating disk. When the rotating shaft rotates, it can drive the first sprocket to rotate, and when the first gear rotates, it can drive the rotating disk to rotate.

[0011] In a preferred embodiment of this technical solution, the mixing tank body has an inner groove for receiving at a position relative to the first gear, and the first gear is rotatably connected to the inner groove.

[0012] According to the preferred embodiment of this technical solution, the scraper assembly includes a second mounting bracket fixedly mounted on the rotating disk, an inner wall scraper slidably connected to the second mounting bracket, and a first spring fixedly connected between the inner wall scraper and the second mounting bracket. When the rotating disk rotates, it can drive the second mounting bracket to rotate. When the inner wall scraper follows the second mounting bracket to rotate, it can push and clean the material on the inner wall of the mixing tank body.

[0013] In a preferred embodiment of this technical solution, the second mounting bracket is provided with a groove for guiding the sliding of the inner wall scraper, and the inner wall scraper is slidably connected to the groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting the outer ring stirring blades and the inner stirring blades to work together, the compound fertilizer raw materials can form a stable and orderly circulating flow state in the mixing tank. This structure can avoid the phenomenon of local accumulation and aggregation of materials on the outside, and ensure that all raw materials can fully participate in the mixing process.

[0015] 2. The wave-shaped guide grooves on the outer and inner mixing blades, compared with the traditional smooth mixing blades, cause multi-directional disturbance and shearing of the material, which greatly increases the contact area and contact frequency between different raw materials and effectively improves the mixing uniformity.

[0016] 3. The scraper assembly is equipped with a first spring. Compared with a rigid direct connection or a simple mechanical fixation structure, the first spring provides a continuous and adaptive elastic thrust for the inner wall scraper. When facing hard lumps or local protrusions, the first spring can provide buffer space for the inner wall scraper through elastic contraction, avoiding rigid scraping that could damage the inner wall scraper or the inner wall of the mixing tank. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of one embodiment of the compound fertilizer uniform mixing device of this utility model; Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the mixing tank body; Figure 3 This is a schematic diagram of the rotating disk and its connected components of the present invention; Figure 4 This is a schematic diagram of the rotating shaft and its connected components of this utility model; Figure 5 This is a schematic diagram of the scraper assembly structure of this utility model; Figure 6 This is a cross-sectional view of the second mounting bracket of this utility model.

[0018] In the figure: 1. Mixing tank body; 21. Rotating disc; 22. First mounting bracket; 23. Outer ring stirring blade; 24. Rotating shaft; 25. Inner stirring blade; 26. First motor; 27. First sprocket; 28. Second sprocket; 29. ​​Chain; 210. First gear; 31. Second mounting bracket; 32. Inner wall scraper; 33. First spring; 4. Electrically controlled valve body. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1 - Figure 6 This utility model provides an embodiment: a device for uniformly mixing compound fertilizer, including a mixing tank body 1 and an electrically controlled valve body 4 installed on the mixing tank body 1, and also includes a main drive assembly installed on the mixing tank body 1, a transmission assembly installed on the main drive assembly, an inner stirring blade 25, a rotating disk 21 rotatably connected to the mixing tank body 1, a first mounting bracket 22 fixedly installed on the rotating disk 21, an outer ring stirring blade 23 fixedly installed on the first mounting bracket 22, and a scraper assembly installed on the rotating disk 21. The rotating disk 21 is connected to the output end of the transmission assembly. The main drive assembly can drive the inner stirring blade 25 to rotate, and the transmission assembly can drive the rotating disk 21 to rotate when the main drive assembly is working. When the rotating disk 21 rotates, it can drive the outer ring stirring blade 23 and the scraper assembly to rotate. When in use, the main drive assembly is started, and the main drive assembly works and drives the inner stirring blades 25 to rotate, stirring the material inside the mixing tank body 1 and pushing the material to the outer area inside the mixing tank body 1; at the same time, the transmission assembly drives the rotating disk 21 to rotate under the drive of the main drive assembly, and the rotating disk 21 drives the first mounting bracket 22, the outer ring stirring blades 23 and the scraper assembly to move synchronously. The outer ring stirring blades 23, in conjunction with the inner stirring blades 25, disturb the material, and the reverse rotation can push the material pushed outward back to the inner area inside the mixing tank body 1. While the outer ring stirring blades 23 rotate, the scraper assembly cleans the inner wall of the mixing tank body 1 to prevent the material from accumulating on the inner wall. While maintaining the flow of the material, it can assist the outer ring stirring blades 23 in pushing the material to the inner area. When the outer ring stirring blades 23 and the inner stirring blades 25 disturb the material, their own wave-shaped guide grooves enhance the shearing force, improve the shearing and dispersing effect on the material, prevent the material from clumping, and make the material continuously tumble and mix in the mixing tank body 1. After the subsequent mixing work is completed, the main drive component is turned off, the operation of each stirring and cleaning component is stopped, and the material is discharged through the opening of the electric control valve body 4, thus completing the mixing work.

[0021] Please see Figure 1 - Figure 2 A further solution based on this embodiment is as follows: a groove is provided on the mixing tank body 1 at the relative position of the rotating disk 21. The rotating disk 21 is rotatably connected to the groove. The groove provides rotational installation space for the rotating disk 21, restricts the radial and axial movement of the rotating disk 21, ensures stable and reliable operation of the rotating disk 21, reduces shaking and offset during rotation, and prevents the rotating disk 21 from being exposed to the working environment, so that material intrusion affects the accuracy of subsequent gear transmission.

[0022] Please see Figure 3 - Figure 4 A further solution based on this embodiment is as follows: both the outer ring stirring blade 23 and the inner stirring blade 25 are provided with wavy guide grooves. The wavy guide grooves are evenly distributed along the length of the blades. The wavy guide grooves can change the material flow direction when the blades rotate, so that the material generates multi-directional disturbance and shearing, enhances the shearing and dispersing effect on the material, avoids material agglomeration, and improves the guiding and stirring efficiency, further improving the uniformity of compound fertilizer mixing.

[0023] Please see Figure 1 - Figure 2 A further solution based on this embodiment is as follows: the main drive assembly includes a first motor 26 fixedly installed on the mixing tank body 1 and a rotating shaft 24 fixedly connected to the output end of the first motor 26. The inner stirring blade 25 is fixedly installed on the rotating shaft 24. The transmission assembly is connected between the rotating shaft 24 and the rotating disk 21. The first motor 26 can drive the rotating shaft 24 to rotate. The torque output by the first motor 26 is directly transmitted to the inner stirring blade 25 through the rotating shaft 24, providing stable rotational power for the inner stirring blade 25. The power transmission is direct and efficient, ensuring stable operation of the inner stirring blade 25 and providing stable power input to the transmission assembly.

[0024] Please see Figure 1 - Figure 2A further embodiment of this solution is as follows: The transmission assembly includes a first sprocket 27 fixedly mounted on the rotating shaft 24, a first gear 210 rotatably connected to the mixing tank body 1, a second sprocket 28 fixedly mounted on the first gear 210, and a chain 29 meshing between the first sprocket 27 and the second sprocket 28. The first gear 210 meshes on the tooth groove of the rotating disk 21, and the first gear 210 and the second sprocket 28 are coaxially fixedly connected. When the rotating shaft 24 rotates, it can drive the first sprocket 27 to rotate. When the first gear 210 rotates, it can drive the rotating disk 21 to rotate. The first sprocket 27 transmits power to the second sprocket 28 and the first gear 210 through the chain 29. The first gear 210 drives the rotating disk 21 to rotate through meshing, realizing stable power transmission from a single power source to multiple components. The transmission efficiency is high, the power loss is small, and the coordination of the operation of the rotating disk 21 and the rotating shaft 24 is guaranteed.

[0025] Please see Figure 1 - Figure 2 A further solution based on this embodiment is as follows: the mixing tank body 1 has an inner groove for receiving the first gear 210 at the relative position of the first gear 210. The first gear 210 is rotatably connected to the inner groove. The inner groove provides rotation space for the first gear 210 and at the same time forms protection for the first gear 210. Together with the rotating groove that limits the rotation of the rotating disk 21, it fully protects the gear transmission structure, reduces the material entering the meshing area and causing jamming, and improves the reliability of transmission.

[0026] Please see Figure 5 - Figure 6 A further solution based on this embodiment is as follows: The scraper assembly includes a second mounting bracket 31 fixedly mounted on the rotating disk 21, an inner wall scraper 32 slidably connected to the second mounting bracket 31, and a first spring 33 fixedly connected between the inner wall scraper 32 and the second mounting bracket 31. When the rotating disk 21 rotates, it can drive the second mounting bracket 31 to rotate. When the inner wall scraper 32 follows the second mounting bracket 31 to rotate, it can push and clean the material on the inner wall of the mixing tank body 1. The first spring 33 provides elastic thrust to the inner wall scraper 32, so that the inner wall scraper 32 always moves in contact with the inner wall of the mixing tank body 1. At the same time, when facing hard agglomerated areas, it avoids hard scraping that causes damage to the inner wall scraper 32.

[0027] Please see Figure 5 - Figure 6 A further solution based on this embodiment is as follows: a groove is provided on the second mounting bracket 31 to guide the sliding of the inner wall scraper 32. The inner wall scraper 32 is slidably connected to the groove. The groove restricts the sliding direction of the inner wall scraper 32, ensuring that the inner wall scraper 32 moves closer to or further away from the inner wall of the mixing tank body 1 in a set direction, thereby improving the movement stability of the inner wall scraper 32 and preventing the scraper from deviating.

[0028] Other embodiments: The main drive component can also adopt other structures in the prior art, with a servo motor replacing the first motor; the advantage is that the servo motor can precisely adjust the speed, and can flexibly adjust the stirring rate according to the viscosity and ratio of the compound fertilizer raw materials, further improving the mixing adaptability, while the start and stop are more stable, reducing vibration and noise during equipment operation.

[0029] Working principle: When in use, the first motor 26 is started, which drives the rotating shaft 24 to rotate. The rotating shaft 24 directly drives the inner stirring blades 25 to rotate. During the rotation of the inner stirring blades 25, the material inside the mixing tank body 1 is stirred and pushed to the outer area of ​​the mixing tank body 1. At the same time, the rotation of the rotating shaft 24 drives the first sprocket 27 to rotate. The first sprocket 27 drives the second sprocket 28 to rotate through the chain 29. The second sprocket 28 drives the first gear 210 to rotate. The first gear 210 meshes with the tooth groove of the rotating disk 21, thereby driving the rotating disk 21 to rotate in the groove. When the rotating disk 21 rotates, it drives the first mounting bracket 22, the outer ring stirring blades 23 and the scraper assembly to move synchronously. The first mounting bracket 22 drives the outer ring stirring blades 23 to rotate in the opposite direction. During the reverse rotation of the outer ring stirring blades 23, they work with the inner stirring blades 25 to disturb the material. At the same time, the material pushed outward by the inner stirring blades 25 is pushed back to the inner area of ​​the mixing tank body 1. While the rotating disk 21 drives the second mounting bracket 31 to rotate, the second mounting bracket 31 drives the inner wall scraper 32 to rotate through the sliding groove. The first spring 33 provides thrust to the inner wall scraper 32, so that the inner wall scraper 32 always adheres to the inner wall of the mixing tank body 1. When the inner wall scraper 32 rotates, it cleans the inner wall of the mixing tank body 1 to prevent material from accumulating on the inner wall. At the same time, it assists the outer ring stirring blade 23 in pushing the material near the inner wall to the inner area. When the outer ring stirring blade 23 and the inner stirring blade 25 disturb the material, the wave-shaped guide grooves evenly distributed along the blade length direction on their surfaces change the material flow direction as the blades rotate, strengthen the shearing force on the material, shear and disperse the material, prevent the material from clumping, and make the material continuously tumble and mix in the mixing tank body 1. After the mixing process is completed, the first motor 26 is turned off, the first motor 26 stops working, the rotating shaft 24 stops rotating, and the internal stirring blades 25 and other components stop moving. Then, the discharge channel is opened through the electric control valve body 4 to discharge the uniformly mixed compound fertilizer material. After the material is discharged, the electric control valve body 4 is closed, thus completing the entire mixing process.

[0030] 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 device for uniform mixing of compound fertilizer, comprising a mixing tank body (1) and an electric control valve body (4) installed on the mixing tank body (1), characterized in that: It also includes a main drive assembly installed on the mixing tank body (1), a transmission assembly installed on the main drive assembly, an inner stirring blade (25), a rotating disk (21) rotatably connected to the mixing tank body (1), a first mounting bracket (22) fixedly installed on the rotating disk (21), an outer ring stirring blade (23) fixedly installed on the first mounting bracket (22), and a scraper assembly installed on the rotating disk (21). The rotating disk (21) is connected to the output end of the transmission assembly. The main drive assembly can drive the inner stirring blade (25) to rotate, and the transmission assembly can drive the rotating disk (21) to rotate when the main drive assembly is working. When the rotating disk (21) rotates, it can drive the outer ring stirring blade (23) and scraper assembly to rotate.

2. The device for uniform mixing of compound fertilizers according to claim 1, characterized in that: The mixing tank body (1) has a rotating groove at the relative position of the rotating disk (21), and the rotating disk (21) is rotatably connected to the rotating groove.

3. The device for uniform mixing of compound fertilizers according to claim 1, characterized in that: Both the outer ring stirring blade (23) and the inner stirring blade (25) have wave-shaped guide grooves on their surfaces, which are evenly distributed along the length of the blade.

4. The device for uniform mixing of compound fertilizers according to claim 1, characterized in that: The main drive assembly includes a first motor (26) fixedly mounted on the mixing tank body (1) and a rotating shaft (24) fixedly connected to the output end of the first motor (26). The inner stirring blade (25) is fixedly mounted on the rotating shaft (24). The transmission assembly is connected between the rotating shaft (24) and the rotating disk (21). The first motor (26) can drive the rotating shaft (24) to rotate.

5. The device for uniform mixing of compound fertilizers according to claim 1, characterized in that: The transmission assembly includes a first sprocket (27) fixedly mounted on a rotating shaft (24), a first gear (210) rotatably connected to the mixing tank body (1), a second sprocket (28) fixedly mounted on the first gear (210), and a chain (29) meshing between the first sprocket (27) and the second sprocket (28). The first gear (210) meshes on the tooth groove of the rotating disk (21). When the rotating shaft (24) rotates, it can drive the first sprocket (27) to rotate. When the first gear (210) rotates, it can drive the rotating disk (21) to rotate.

6. The device for uniform mixing of compound fertilizers according to claim 5, characterized in that: The mixing tank body (1) has an inner groove for storage at the relative position of the first gear (210), and the first gear (210) is rotatably connected to the inner groove.

7. The device for uniform mixing of compound fertilizers according to claim 1, characterized in that: The scraper assembly includes a second mounting bracket (31) fixedly mounted on the rotating disk (21), an inner wall scraper (32) slidably connected to the second mounting bracket (31), and a first spring (33) fixedly connected between the inner wall scraper (32) and the second mounting bracket (31). When the rotating disk (21) rotates, it can drive the second mounting bracket (31) to rotate. When the inner wall scraper (32) follows the second mounting bracket (31) to rotate, it can push and clean the material on the inner wall of the mixing tank body (1).

8. The device for uniform mixing of compound fertilizers according to claim 7, characterized in that: The second mounting bracket (31) has a groove for guiding the sliding of the inner wall scraper (32), and the inner wall scraper (32) is slidably connected to the groove.

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