Multi-stage spiral stirrer for water-soluble fertilizer raw materials

By designing a multi-stage spiral mixer, utilizing the main mixing shaft, secondary mixing shaft, and secondary mixing unit, a wide range of mixing and upward throwing of raw materials are achieved, solving the problems of insufficient efficiency and high cost of existing water-soluble fertilizer raw material mixing devices, and reducing maintenance difficulty and cost.

CN224180695UActive Publication Date: 2026-05-01SHANDONG HANUOWEI BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG HANUOWEI BIOTECHNOLOGY CO LTD
Filing Date
2025-05-16
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The existing mixing devices for water-soluble fertilizer raw materials have insufficient mixing effect and efficiency, and the multi-stage spiral mixer has a complex structure and high equipment and maintenance costs.

Method used

The multi-stage spiral mixer, including a mixing tank, cover plate, limiting structure, mixing components and drive components, is designed with a mixing main shaft, a mixing secondary shaft and a two-stage mixing unit. It uses a single motor to drive multiple shafts to rotate, combined with staggered mixing blades and spiral blades, to achieve wide-range mixing and upward throwing of raw materials, avoiding sinking to the bottom.

Benefits of technology

It improves mixing efficiency, reduces equipment costs and maintenance difficulty, and saves maintenance costs.

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Abstract

The utility model relates to the technical field of water-soluble fertilizer stirring devices, and discloses a water-soluble fertilizer raw material multi-stage spiral stirrer which comprises a stirring barrel, and a cover plate is movably clamped at the top end of the stirring barrel; a stirring assembly is arranged at the bottom end of the cover plate, the stirring assembly comprises a stirring main shaft and a plurality of groups of stirring auxiliary shafts, and stirring blades are fixedly mounted on the outer wall surfaces of the stirring main shaft and the stirring auxiliary shafts; the second-stage stirring unit comprises a second-stage stirring main shaft and a spiral blade; and the driving assembly comprises a first gear, a second gear and a transmission part. A stirring assembly, a stirring main shaft and multiple groups of stirring auxiliary shafts are matched with stirring blades to stir water-soluble fertilizer raw materials in a stirring barrel cavity, the stirring range is wide, a secondary stirring unit is arranged, a secondary stirring main shaft is matched with spiral blades to stir the raw materials at the bottom end in the stirring barrel cavity, the raw materials are thrown upwards, and the raw materials are prevented from sinking to the bottom; the stirring efficiency of the equipment is further improved.
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Description

A multi-stage spiral mixer for water-soluble fertilizer raw materials Technical Field

[0001] This utility model relates to the technical field of water-soluble fertilizer mixing devices, and in particular to a multi-stage spiral mixer for water-soluble fertilizer raw materials. Background Technology

[0002] There are many kinds of raw materials for water-soluble fertilizers, the most common ones being: nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, medium elements, and functional water-soluble fertilizers. These raw materials are mixed together through different formulas and processes to form an effective water-soluble fertilizer that provides plants with comprehensive nutrition and promotes their healthy growth.

[0003] The prior art discloses a water-soluble fertilizer raw material mixing device (announcement number: CN221244793U), which includes a water-soluble fertilizer raw material mixing tank. The top of the water-soluble fertilizer raw material mixing tank is equipped with a disassembly and assembly component, and the side of the water-soluble fertilizer raw material mixing tank is provided with a water-soluble fertilizer tilting component. The interior of the water-soluble fertilizer raw material mixing tank is provided with a water-soluble fertilizer raw material mixing component, and the bottom of the water-soluble fertilizer raw material mixing tank is provided with a mixing device base plate.

[0004] Existing technologies facilitate the disassembly and installation of mixing components, thereby making it easier to clean the water-soluble fertilizer particles remaining inside the mixing tank. However, the mixing effect and efficiency of existing technologies are insufficient. In addition, some existing multi-stage spiral mixers are structurally complex, resulting in high equipment and maintenance costs.

[0005] To address these issues, those skilled in the art have provided a multi-stage spiral mixer for water-soluble fertilizer raw materials. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this utility model provides a multi-stage spiral mixer for water-soluble fertilizer raw materials, which solves the problems mentioned in the background section.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A multi-stage spiral mixer for water-soluble fertilizer raw materials includes a mixing tank with a cover plate movably engaged at the top. A limiting structure is provided between the mixing tank and the cover plate, including a rectangular block and a fixing stake. A mixing assembly for mixing the water-soluble fertilizer raw materials inside the mixing tank is provided at the bottom of the cover plate. The mixing assembly includes a main mixing shaft and multiple sets of auxiliary mixing shafts, with the main and auxiliary shafts rotating in opposite directions. Mixing blades are fixedly installed on the outer walls of both the main and auxiliary shafts. A secondary mixing unit includes a secondary mixing shaft and spiral blades, with the secondary mixing shaft movably extending through the main mixing shaft and the spiral blades located below it. A drive assembly is located at the top of the cover plate and is used to drive the main mixing shaft, auxiliary mixing shafts, and secondary mixing shaft to rotate. The drive assembly includes a first gear, a second gear, and a transmission unit. The transmission unit includes a rotating shaft and a motor. The main mixing shaft, secondary mixing shaft, and rotating shaft are connected by a belt drive.

[0009] According to the multi-stage spiral mixer for water-soluble fertilizer raw materials, there are two sets of fixed piles. The two sets of fixed piles are fixedly installed on the outer wall of the mixing tank, and the rectangular block is fixedly installed on the outer wall of the cover plate. The rectangular block can be movably engaged between the corresponding two sets of fixed piles.

[0010] According to the multi-stage spiral mixer for water-soluble fertilizer raw materials, the main mixing shaft passes through the cover plate via bearings, and there are multiple sets of auxiliary mixing shafts. These multiple sets of auxiliary mixing shafts pass through the cover plate via bearings. The cover plate is arranged in a ring array around the main mixing shaft, and the auxiliary mixing shafts are parallel to each other.

[0011] According to the multi-stage spiral mixer for water-soluble fertilizer raw materials, the mixing blades on the outer walls of the mixing main shaft and the mixing secondary shaft are staggered. The end of the mixing main shaft away from the mixing tank is fixedly connected to the first gear, and the end of the mixing secondary shaft away from the mixing tank is fixedly connected to the second gear. The first gear is in active mesh with multiple sets of second gears.

[0012] According to the multi-stage spiral mixer for water-soluble fertilizer raw materials, a sealed bearing is provided between the secondary mixing main shaft and the main mixing shaft, and the bottom end of the secondary mixing main shaft is fixedly connected to the spiral blades.

[0013] According to the multi-stage spiral mixer for water-soluble fertilizer raw materials, the transmission unit further includes a first driven wheel, a second driven wheel, a first driving wheel, and a second driving wheel. One end of the mixing main shaft is fixedly inserted through the first driven wheel, which is located above the first gear. One end of the secondary mixing main shaft is fixedly inserted through the second driven wheel. The motor is fixedly installed on the top of the cover plate, and the output shaft of the motor is fixedly connected to the rotating main shaft.

[0014] According to the multi-stage spiral mixer for water-soluble fertilizer raw materials, the rotating main shaft is fixedly connected through the first driving wheel and the second driving wheel. An assembly frame is also fixedly installed on the top of the cover plate. The end of the rotating main shaft away from the motor is movably installed in the cavity of the assembly frame through a bearing. The second driven wheel and the second driving wheel, as well as the first driven wheel and the first driving wheel, are all connected by belt drive.

[0015] This utility model provides a multi-stage spiral mixer for water-soluble fertilizer raw materials. It has the following beneficial effects:

[0016] (1) By setting a limiting structure between the mixing tank and the cover plate, the cover plate is effectively prevented from deflecting during operation. By setting a mixing assembly, the mixing main shaft and multiple sets of mixing secondary shafts work together with the mixing blades to mix the water-soluble fertilizer raw materials in the mixing tank cavity. The mixing range is wide, thereby improving the mixing efficiency. By setting a secondary mixing unit, the secondary mixing main shaft works with the spiral blades to mix the raw materials at the bottom of the mixing tank cavity, throwing the raw materials upward and preventing them from sinking to the bottom, further improving the mixing efficiency of the equipment. By setting a drive assembly, only one motor drives the mixing main shaft, mixing secondary shaft and secondary mixing main shaft to rotate, saving costs, reducing the difficulty and frequency of maintenance work, and saving maintenance costs.

[0017] (2) By setting a stirring main shaft and multiple sets of stirring auxiliary shafts that move through the cover plate through bearings, the stirring main shaft is fixedly passed through the first gear, and the multiple sets of stirring auxiliary shafts are all fixedly passed through the second gear. The first gear and the multiple sets of second gears are movably meshed, so that the stirring main shaft rotates and drives the multiple sets of stirring auxiliary shafts to rotate. Moreover, the stirring main shaft and the multiple sets of stirring auxiliary shafts rotate in opposite directions, which improves the mixing efficiency of the device. By setting a secondary stirring main shaft and a sealed bearing between the stirring main shaft, the bottom end of the secondary stirring main shaft is fixedly connected to the spiral blades. The rotation of the secondary stirring main shaft synchronously drives the spiral blades to rotate, stirring the raw materials at the bottom of the mixing tank cavity, throwing the raw materials upward, avoiding the raw materials from sinking to the bottom, and further improving the mixing efficiency of the equipment.

[0018] (3) By setting the stirring main shaft to be fixed through the first driven wheel, the secondary stirring main shaft to be fixed through the second driven wheel, the output shaft of the motor to be fixedly connected to the rotating main shaft, the rotating main shaft to be fixedly through the first driving wheel and the second driving wheel, the diameter of the second driving wheel is larger than that of the first driving wheel, so that the rotation speed of the secondary stirring main shaft is faster than that of the stirring main shaft. The second driven wheel and the second driving wheel, and the first driven wheel and the first driving wheel are all connected by belt drive. The rotation of the rotating main shaft drives the stirring main shaft and the secondary stirring main shaft to rotate. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the appearance of a multi-stage spiral mixer for water-soluble fertilizer raw materials according to this utility model.

[0020] Figure 2 is a right-side schematic diagram of a multi-stage spiral mixer for water-soluble fertilizer raw materials according to this utility model;

[0021] Figure 3 is a three-dimensional structural diagram of the mixing component of a multi-stage spiral mixer for water-soluble fertilizer raw materials according to this utility model;

[0022] Figure 4 is a schematic diagram showing the positional relationship between the main mixing shaft and the auxiliary mixing shaft of a multi-stage spiral mixer for water-soluble fertilizer raw materials according to this utility model.

[0023] Figure 5 is a three-dimensional structural diagram of the drive component of a multi-stage spiral mixer for water-soluble fertilizer raw materials according to this utility model.

[0024] Legend:

[0025] 10. Mixing tank; 11. Cover plate; 12. Mixing assembly; 13. Drive assembly; 14. Rectangular block; 15. Fixing pile; 16. Mixing main shaft; 17. Mixing secondary shaft; 18. Secondary mixing main shaft; 19. Mixing blades; 20. Spiral blades; 21. First gear; 22. Second gear; 23. First driven wheel; 24. Motor; 25. First driving wheel; 26. Second driven wheel; 27. Second driving wheel; 28. Assembly frame; 29. ​​Rotating main shaft. Detailed Implementation

[0026] As shown in Figures 1-5: A multi-stage spiral mixer for water-soluble fertilizer raw materials includes a mixing tank 10, a cover plate 11 that is movably engaged at the top of the mixing tank 10, and a limiting structure between the mixing tank 10 and the cover plate 11, the limiting structure including a rectangular block 14 and a fixing post 15; a mixing assembly 12 for mixing the water-soluble fertilizer raw materials in the mixing tank 10 is provided at the bottom of the cover plate 11, the mixing assembly 12 including a mixing main shaft 16 and multiple sets of mixing secondary shafts 17, the mixing main shaft 16 and the mixing secondary shafts 17 rotate in opposite directions, and mixing blades 19 are fixedly installed on the outer wall surfaces of the mixing main shaft 16 and the mixing secondary shafts 17; The secondary mixing unit includes a secondary mixing main shaft 18 and a spiral blade 20. The secondary mixing main shaft 18 movably passes through the mixing main shaft 16, and the spiral blade 20 is located below the mixing main shaft 16. The drive assembly 13 is located at the top of the cover plate 11 and is used to drive the mixing main shaft 16, the secondary mixing main shaft 17, and the secondary mixing main shaft 18 to rotate. The drive assembly 13 includes a first gear 21, a second gear 22, and a transmission part. The transmission part includes a rotating main shaft 29 and a motor 24. The mixing main shaft 16, the secondary mixing main shaft 18, and the rotating main shaft 29 are connected by belt drive.

[0027] Specifically, by setting a limiting structure between the mixing tank 10 and the cover plate 11, the cover plate 11 is effectively prevented from deflecting during operation. By setting the mixing assembly 12, the mixing main shaft 16 and multiple sets of mixing auxiliary shafts 17 work together with the mixing blades 19 to mix the water-soluble fertilizer raw materials in the mixing tank 10 cavity, resulting in a wide mixing range and improved mixing efficiency. By setting a secondary mixing unit, the secondary mixing main shaft 18 works with the spiral blades 20 to mix the raw materials at the bottom of the mixing tank 10 cavity, throwing the raw materials upward and preventing them from sinking to the bottom, further improving the mixing efficiency of the equipment. By setting the drive assembly 13, only one motor 24 drives the mixing main shaft 16, mixing auxiliary shafts 17 and secondary mixing main shaft 18 to rotate, saving costs, reducing the difficulty and frequency of maintenance work, and saving maintenance costs.

[0028] There are two sets of fixed piles 15. The two sets of fixed piles 15 are fixedly installed on the outer wall of the mixing tank 10. The rectangular block 14 is fixedly installed on the outer wall of the cover plate 11. The rectangular block 14 can be movably engaged between the corresponding two sets of fixed piles 15.

[0029] Specifically, by means of configuration, two sets of fixed piles 15 are fixedly installed on the outer wall of the mixing tank 10, and rectangular blocks 14 are fixedly installed on the outer wall of the cover plate 11. The rectangular blocks 14 can be movably engaged between the corresponding two sets of fixed piles 15, thereby limiting the cover plate 11 and preventing the cover plate 11 from rotating.

[0030] The main stirring shaft 16 passes through the cover plate 11 via bearings. Multiple sets of auxiliary stirring shafts 17 also pass through the cover plate 11 via bearings. The cover plate 11 is arranged in a circular array around the main stirring shaft 16. The auxiliary stirring shafts 17 and the main stirring shaft 16 are parallel to each other. The stirring blades 19 on the outer walls of the main stirring shaft 16 and the auxiliary stirring shafts 17 are staggered. The end of the main stirring shaft 16 furthest from the mixing tank 10 is fixedly connected to a first gear 21. The ends of the auxiliary stirring shafts 17 furthest from the mixing tank 10 are all fixedly connected to second gears 22. The first gear 21 meshes with multiple sets of second gears 22.

[0031] Specifically, by setting a stirring main shaft 16 and multiple sets of stirring auxiliary shafts 17 that movably pass through the cover plate 11 via bearings, the stirring main shaft 16 is fixedly passed through the first gear 21, and the multiple sets of stirring auxiliary shafts 17 are all fixedly passed through the second gear 22. The first gear 21 and the multiple sets of second gears 22 are movably meshed, so that the stirring main shaft 16 rotates and drives the multiple sets of stirring auxiliary shafts 17 to rotate, and the stirring main shaft 16 and the multiple sets of stirring auxiliary shafts 17 rotate in opposite directions, thereby improving the mixing efficiency of the device.

[0032] A sealed bearing is provided between the secondary stirring shaft 18 and the stirring shaft 16, and the bottom end of the secondary stirring shaft 18 is fixedly connected to the spiral blade 20.

[0033] Specifically, a sealed bearing is installed between the secondary mixing shaft 18 and the mixing shaft 16. The bottom end of the secondary mixing shaft 18 is fixedly connected to the spiral blade 20. The rotation of the secondary mixing shaft 18 synchronously drives the spiral blade 20 to rotate, which stirs the raw material at the bottom of the mixing tank 10 and throws the raw material upward to prevent it from sinking to the bottom, thereby further improving the mixing efficiency of the equipment.

[0034] The transmission unit also includes a first driven wheel 23, a second driven wheel 26, a first driving wheel 25, and a second driving wheel 27. One end of the stirring main shaft 16 is fixedly inserted through the first driven wheel 23, which is located above the first gear 21. One end of the secondary stirring main shaft 18 is fixedly inserted through the second driven wheel 26. The motor 24 is fixedly mounted on the top of the cover plate 11, and the output shaft of the motor 24 is fixedly connected to the rotating main shaft 29. The rotating main shaft 29 is fixedly inserted through the first driving wheel 25 and the second driving wheel 27. An assembly frame 28 is also fixedly mounted on the top of the cover plate 11. The end of the rotating main shaft 29 away from the motor 24 is movably mounted in the cavity of the assembly frame 28 via a bearing. The second driven wheel 26 and the second driving wheel 27, as well as the first driven wheel 23 and the first driving wheel 25, are all connected by belt drives.

[0035] Specifically, by setting the stirring main shaft 16 to be fixedly inserted through the first driven wheel 23, the secondary stirring main shaft 18 to be fixedly inserted through the second driven wheel 26, and the output shaft of the motor 24 to be fixedly connected to the rotating main shaft 29, the rotating main shaft 29 to be fixedly inserted through the first driving wheel 25 and the second driving wheel 27, the diameter of the second driving wheel 27 being larger than that of the first driving wheel 25, so that the rotation speed of the secondary stirring main shaft 18 is faster than that of the stirring main shaft 16. The second driven wheel 26 and the second driving wheel 27, and the first driven wheel 23 and the first driving wheel 25 are all connected by belt drive. The rotation of the rotating main shaft 29 drives the stirring main shaft 16 and the secondary stirring main shaft 18 to rotate.

[0036] The working principle of the multi-stage spiral mixer for water-soluble fertilizer raw materials disclosed in this application is as follows: By setting a limiting structure between the mixing tank 10 and the cover plate 11, the cover plate 11 is effectively prevented from deflecting during operation. By setting the mixing assembly 12, the mixing main shaft 16 and multiple sets of mixing auxiliary shafts 17, together with the mixing blades 19, mix the water-soluble fertilizer raw materials in the mixing tank 10 cavity. The mixing range is wide, thereby improving the mixing efficiency. By setting a secondary mixing unit, the secondary mixing main shaft 18, together with the spiral blades 20, mixes the raw materials at the bottom of the mixing tank 10 cavity, throwing the raw materials upward and preventing them from sinking to the bottom, further improving the mixing efficiency of the equipment. By setting the drive assembly 13, only one motor 24 drives the mixing main shaft 16, the mixing auxiliary shaft 17 and the secondary mixing main shaft 18 to rotate, saving costs, reducing the difficulty and frequency of maintenance work, and saving maintenance costs.

[0037] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A multi-stage spiral mixer for water-soluble fertilizer raw materials, characterized in that, include: A mixing tank (10) is provided with a cover plate (11) that is movably engaged at the top of the mixing tank (10). A limiting structure is provided between the mixing tank (10) and the cover plate (11). The limiting structure includes a rectangular block (14) and a fixing stake (15). A mixing assembly (12) for mixing water-soluble fertilizer raw materials in the cavity of the mixing tank (10) is provided at the bottom of the cover plate (11). The mixing assembly (12) includes a mixing main shaft (16) and multiple sets of mixing secondary shafts (17). The mixing main shaft (16) and the mixing secondary shafts (17) rotate in opposite directions. Mixing blades (19) are fixedly installed on the outer wall surfaces of the mixing main shaft (16) and the mixing secondary shafts (17). A secondary mixing unit is provided. It includes a secondary stirring main shaft (18) and a spiral blade (20). The secondary stirring main shaft (18) is movably inserted through the stirring main shaft (16), and the spiral blade (20) is located below the stirring main shaft (16). A drive assembly (13) is set at the top of the cover plate (11) to drive the stirring main shaft (16), the stirring secondary shaft (17) and the secondary stirring main shaft (18) to rotate. The drive assembly (13) includes a first gear (21), a second gear (22) and a transmission part. The transmission part includes a rotating main shaft (29) and a motor (24). The stirring main shaft (16), the secondary stirring main shaft (18) and the rotating main shaft (29) are connected by belt drive.

2. The multi-stage spiral mixer for water-soluble fertilizer raw materials according to claim 1, characterized in that: The fixed piles (15) are in two sets. The two sets of fixed piles (15) are fixedly installed on the outer wall of the mixing tank (10). The rectangular block (14) is fixedly installed on the outer wall of the cover plate (11). The rectangular block (14) can be movably engaged between the corresponding two sets of fixed piles (15).

3. The multi-stage spiral mixer for water-soluble fertilizer raw materials according to claim 1, characterized in that: The stirring main shaft (16) passes through the cover plate (11) via bearings. There are multiple sets of stirring secondary shafts (17), which pass through the cover plate (11) via bearings. The cover plate (11) is arranged in a ring array around the stirring main shaft (16), and the stirring secondary shafts (17) are parallel to the stirring main shaft (16).

4. The multi-stage spiral mixer for water-soluble fertilizer raw materials according to claim 3, characterized in that: The stirring blades (19) on the outer wall of the stirring main shaft (16) and the stirring secondary shaft (17) are staggered. The end of the stirring main shaft (16) away from the stirring tank (10) is fixedly connected to the first gear (21), and the end of the stirring secondary shaft (17) away from the stirring tank (10) is fixedly connected to the second gear (22). The first gear (21) is movably meshed with multiple sets of second gears (22).

5. The multi-stage spiral mixer for water-soluble fertilizer raw materials according to claim 1, characterized in that: A sealed bearing is provided between the secondary stirring spindle (18) and the stirring spindle (16), and the bottom end of the secondary stirring spindle (18) is fixedly connected to the spiral blade (20).

6. The multi-stage spiral mixer for water-soluble fertilizer raw materials according to claim 1, characterized in that: The transmission unit also includes a first driven wheel (23), a second driven wheel (26), a first driving wheel (25), and a second driving wheel (27). One end of the stirring main shaft (16) is fixedly inserted through the first driven wheel (23), which is located above the first gear (21). One end of the secondary stirring main shaft (18) is fixedly inserted through the second driven wheel (26). The motor (24) is fixedly installed on the top of the cover plate (11), and the output shaft of the motor (24) is fixedly connected to the rotating main shaft (29).

7. The multi-stage spiral mixer for water-soluble fertilizer raw materials according to claim 6, characterized in that: The rotating spindle (29) is fixedly connected through the first driving wheel (25) and the second driving wheel (27). The top of the cover plate (11) is also fixedly installed with an assembly frame (28). The end of the rotating spindle (29) away from the motor (24) is movably installed in the cavity of the assembly frame (28) through a bearing. The second driven wheel (26) and the second driving wheel (27), and the first driven wheel (23) and the first driving wheel (25) are all connected by belt drive.

Citation Information

Patent Citations

  • Water-soluble fertilizer raw material stirring device

    CN221244793U