An apparatus for producing a copper zinc fertilizer

CN224793365UActive Publication Date: 2026-09-25GUIZHOU KAILIN GRP CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202521431969.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-09
Publication Date
2026-09-25
Estimated Expiration
2035-07-09

AI Technical Summary

Technical Problem

[0004]但是,目前的储槽中所设置的桨式搅拌桨的搅拌程度较低,使得原料混合均化效果较低,而涡轮式搅拌桨容易在混合过程中产生大量泡沫,影响铜锌化肥生产,导致生产的铜锌化肥质量下降

Benefits of technology

1、储槽体中设置了环形叶轮、小搅拌桨、第一圆盘锯齿叶轮以及第二圆盘锯齿叶轮四个组合式搅拌叶轮,并且四个搅拌叶轮分别处于不同的位置,4个搅拌叶轮协同工作,使物料处于流动状态,避免部分物料因搅拌不充分而静止,导致产生成分分层、沉淀或结块,同时避免物料产生过多泡沫,提高了搅拌速率和铜锌肥料的质量。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224793365U_ABST
    Figure CN224793365U_ABST
Patent Text Reader

Abstract

The application discloses a device for producing copper-zinc fertilizer, which is used for improving stirring efficiency and the quality of copper-zinc fertilizer. The device comprises a storage tank body, a submersible slurry pump, a first stirring shaft, a second stirring shaft, an annular impeller, a small stirring paddle, a first disc sawtooth impeller and a second disc sawtooth impeller. The submersible slurry pump is connected with the storage tank body and used for conveying materials. The first stirring shaft is arranged at the center of the storage tank body. The small stirring paddle is arranged on the first stirring shaft. The annular impeller is arranged at the bottom of the storage tank body through the first stirring shaft. The second stirring shaft is arranged in the storage tank body and parallel to the first stirring shaft. The first disc sawtooth impeller and the second disc sawtooth impeller are arranged on the second stirring shaft and parallel to each other in a top-bottom structure.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of chemical technology, and in particular to an apparatus for producing copper-zinc fertilizer. Background Technology

[0002] In the context of modern agriculture, with the continuous development and intensive use of land, the problem of soil nutrient imbalance is becoming increasingly prominent. In pursuit of high yields, large amounts of macronutrient fertilizers such as nitrogen, phosphorus, and potassium are widely used, while the supplementation of micronutrients is often neglected. Copper and zinc, as essential micronutrients for plant growth, are becoming increasingly important. Appropriate amounts of copper and zinc fertilizers can ensure healthy plant growth, maintain normal physiological functions, and thus improve crop yield and quality. Precise application of copper and zinc fertilizers is a key factor in improving the quality and market competitiveness of agricultural products.

[0003] In copper-zinc fertilizer production, storage tanks can be used to store raw materials during the production process. At the same time, paddle-type or turbine-type agitators are installed in the storage tanks to mix the raw materials, ensuring a stable supply of raw materials and avoiding disruption to production continuity due to supply interruptions. This provides a buffer time for subsequent reaction and processing steps.

[0004] However, the paddle-type agitators currently installed in the storage tanks have a low degree of agitation, resulting in a low effect of raw material mixing and homogenization. Meanwhile, turbine-type agitators tend to generate a large amount of foam during the mixing process, which affects the production of copper-zinc fertilizers and leads to a decline in the quality of the produced copper-zinc fertilizers. Utility Model Content

[0005] This application provides an apparatus for producing copper-zinc fertilizer, comprising:

[0006] Storage tank, submersible mud pump, first stirring shaft, second stirring shaft, annular impeller, small stirring paddle, first disc serrated impeller and second disc serrated impeller; The submersible mud pump is connected to the storage tank and is used to transport materials; The first stirring shaft is located at the center of the storage tank. The small stirring paddle is mounted on the first stirring shaft; The annular impeller is disposed at the bottom of the storage tank via the first stirring shaft; The second stirring shaft is disposed in the storage tank, and the second stirring shaft is parallel to the first stirring shaft; The first and second disc serrated impellers are mounted on the second stirring shaft, and the first and second disc serrated impellers are arranged in a vertically parallel structure.

[0007] Optionally, the small stirring paddle is a flat paddle structure or an inclined paddle structure.

[0008] Optionally, the first and second disc serrated impellers are flat-tooth disc impellers, flared-tooth disc impellers, or toothed disc impellers.

[0009] Optionally, the sawtooth shape of the first disc sawtooth impeller and the second disc sawtooth impeller is triangular, trapezoidal or rectangular.

[0010] Optionally, the first stirring shaft is connected to the top of the storage tank via a sealed bearing to prevent material leakage.

[0011] Optionally, the small stirring paddle is detachably connected to the first stirring shaft; The annular impeller is detachably connected to the first stirring shaft; The first and second disc-shaped serrated impellers are detachably connected to the second stirring shaft.

[0012] Optionally, a guide channel is provided at the bottom of the storage tank to guide the flow of materials and enhance the stirring effect.

[0013] Optionally, a driving device is provided at the upper end of the first stirring shaft, the driving device being used to drive the first stirring shaft to rotate.

[0014] Optionally, the annular impeller, the small stirring paddle, the first disc serrated impeller, and the second disc serrated impeller are all made of corrosion-resistant metal materials.

[0015] Optionally, the corrosion-resistant metal material is 316L stainless steel, Hastelloy, or titanium alloy.

[0016] As can be seen from the above technical solutions, this application has the following advantages: 1. The storage tank is equipped with four combined agitator impellers: an annular impeller, a small stirring paddle, a first disc serrated impeller, and a second disc serrated impeller. The four agitator impellers are located in different positions and work together to keep the material in a flowing state. This prevents some material from becoming stagnant due to insufficient mixing, which could lead to component stratification, sedimentation, or agglomeration. At the same time, it avoids excessive foaming of the material, thereby improving the mixing rate and the quality of the copper-zinc fertilizer.

[0017] 2. The first and second disc serrated impellers are arranged in a parallel structure, which mixes the material while crushing large particles, improving the mixing uniformity of the material, making the copper-zinc fertilizer particles more uniform, and improving the quality of the copper-zinc fertilizer.

[0018] 3. Connect a submersible mud pump to the storage tank. The submersible mud pump can introduce the material into the acid mixing tank. Since there are solid particles in the material, the submersible mud pump can reduce the risk of blockage in the pump, maintain the continuous production of copper-zinc fertilizer, and improve the production rate. Attached Figure Description

[0019] Figure 1 A schematic diagram of an embodiment of the apparatus for producing copper-zinc fertilizer provided in this application; Figure 2 This is a top view schematic diagram of an embodiment of the storage tank in the apparatus for producing copper-zinc fertilizer provided in this application. Detailed Implementation

[0020] To address the aforementioned technical problems, this application provides an apparatus for producing copper-zinc fertilizer, which improves mixing efficiency and the quality of the copper-zinc fertilizer.

[0021] In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and other terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to describe the relative positional relationship between the components or parts and do not specifically limit the specific installation orientation of each component or part.

[0022] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0023] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0024] Furthermore, the structures, proportions, sizes, etc., drawn in the accompanying drawings of this application are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modification to the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

[0025] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] Please see Figure 1 , Figure 1 One embodiment of an apparatus for producing copper-zinc fertilizer provided in this application includes: Storage tank 01, submersible mud pump 02, first stirring shaft 03, second stirring shaft 04, annular impeller 05, small stirring paddle 06, first disc serrated impeller 07 and second disc serrated impeller 08; Submersible mud pump 02 is connected to storage tank 01, and submersible mud pump 02 is used to transport materials; The first stirring shaft 03 is located at the center of the storage tank 01; The small stirring paddle 06 is mounted on the first stirring shaft 03; An annular impeller 05 is positioned at the bottom of the storage tank 01 via a first stirring shaft 03; The second stirring shaft 04 is installed in the storage tank 01, and the second stirring shaft 04 is parallel to the first stirring shaft 03. The first disc serrated impeller 07 and the second disc serrated impeller 08 are mounted on the second stirring shaft 04, and the first disc serrated impeller 07 and the second disc serrated impeller 08 are arranged in a vertically parallel structure.

[0027] Storage tank 01: Storage tank 01 is used to store the materials required for the production of copper-zinc fertilizer. Storage tank 01 needs to withstand the weight of the materials, the forces during the stirring process, and chemical corrosion. The material of storage tank 01 needs to have a certain degree of corrosion resistance and strength.

[0028] Submersible mud pump 02: The submersible mud pump 02 is connected to the storage tank 01 and is used to draw material from the storage tank 01 into the pump and transport it to the next processing unit. The submersible mud pump 02 can overcome problems such as solid particles and high viscosity in the material, ensuring smooth material transport and maintaining continuous and stable production.

[0029] First stirring shaft 03: Located at the center of storage tank 01, the first stirring shaft 03 supports and drives the rotation of the annular impeller 05 and the small stirring paddle 06. During the stirring process, the first stirring shaft 03 needs to withstand the generated torque and stress, and is usually made of a metal material with high strength and corrosion resistance. The rotation of the first stirring shaft 03 drives the annular impeller 05 and the small stirring paddle 06 to stir the material in the central area and bottom of the storage tank 01, promoting the mixing of the material.

[0030] Second stirring shaft 04: The second stirring shaft 04 is parallel to the first stirring shaft 03 and is installed in the storage tank 01. The second stirring shaft 04 supports and drives the rotation of the first disc serrated impeller 07 and the second disc serrated impeller 08, expanding the stirring range and reducing the stirring dead zones caused by a single stirring shaft. The first stirring shaft 04 works in conjunction with the first stirring shaft 03, allowing for stirring of materials from different positions and angles, which helps improve the uniformity and efficiency of stirring.

[0031] Annular impeller 05: The annular impeller 05 is located at the bottom of the storage tank 01 via the first stirring shaft 03. The blades of the annular impeller 05 typically extend outward or inward along the circumference of the annular structure. The blade shape may be curved or straight. During stirring, the annular impeller 05 rotates along with the first stirring shaft 03. The annular impeller 05 can turn the material at the bottom of the storage tank 01 upward, promoting the vertical circulation of the material, reducing sedimentation and accumulation at the bottom of the storage tank 01, and aiding in material mixing.

[0032] Small agitator 06: The small agitator 06 is mounted on the first agitator shaft 03. It is typically blade-shaped, consisting of one or more blades with a certain length and width. The blades extend outward from the first agitator shaft 03 at a certain angle. When the first agitator shaft 03 rotates, the small agitator 06 rotates accordingly. The small agitator 06 is used to agitate the more fluid materials in the upper layer of the storage tank 01, ensuring thorough mixing of the materials.

[0033] First serrated disc impeller 07 and second serrated disc impeller 08: The first serrated disc impeller 07 and second serrated disc impeller 08 are mounted on the second stirring shaft 04. The first serrated disc impeller 07 and second serrated disc impeller 08 are parallel in structure, both being serrated discs. During rotation, the serrated structure on the discs can crush the material. Furthermore, the first serrated disc impeller 07 and second serrated disc impeller 08 work together to stir and crush the material at different heights, increasing the layers and effect of stirring, further improving the degree of mixing, preventing stratification at different heights, ensuring thorough stirring and mixing in the vertical direction, and improving the uniformity of the material.

[0034] Working Principle: After the material is put into the storage tank 01, the first stirring shaft 03 and the second stirring shaft 04 are started to rotate. The first stirring shaft 03 drives the annular impeller 05 and the small stirring paddle 06 to rotate in the center of the storage tank 01. The annular impeller 05 turns the material at the bottom of the storage tank 01 upward, causing the material to circulate up and down. The small stirring paddle 06 is in the upper part of the storage tank, stirring the upper layer of material. At the same time, the second stirring shaft 04 works in conjunction with the first stirring shaft 03. The second stirring shaft 04 drives the first disc serrated impeller 07 and the second circular serrated impeller 08, which have a parallel structure, to rotate, stirring the surrounding material and breaking down and dispersing large particles or lumps of material. After the material is evenly stirred, the submersible mud pump 02 on the storage tank 01 introduces the material in the storage tank 01 into the next device for processing.

[0035] In this embodiment, the storage tank 01 is equipped with four combined stirring impellers: an annular impeller 05, a small stirring paddle 06, a first disc serrated impeller 07, and a second disc serrated impeller 08. These four impellers are positioned at different locations. The annular impeller 05 agitates the material vertically, the small stirring paddle 06 stirs the upper and middle layers of material, and the first and second disc serrated impellers 07 and 08 are parallel to each other, agitating the material at different heights while simultaneously breaking up large particles. The four impellers work together to keep the material in a flowing state, preventing some material from becoming stagnant due to insufficient agitation, which could lead to component stratification, sedimentation, or agglomeration. This results in more uniform copper-zinc fertilizer particles and avoids excessive foaming, improving the stirring rate and the quality of the copper-zinc fertilizer. Simultaneously, a submersible mud pump 02 connected to the storage tank 01 introduces the material into the acid mixing tank. Since the material contains solid particles, the submersible mud pump 02 reduces the risk of blockage by these particles, maintaining continuous production of copper-zinc fertilizer and increasing the production rate.

[0036] In one optional embodiment, the small agitator 06 has a flat paddle structure or an inclined paddle structure.

[0037] Small agitators are typically of either a flat or inclined blade design, with the appropriate design chosen based on production requirements. Flat blade agitators have planar blades perpendicular to the first agitator shaft 03. During rotation, they primarily generate horizontal shear force, suitable for agitating materials with good flowability. They create a large-scale circulation within the horizontal plane, promoting mixing and dispersion. Inclined blade agitators have blades at a certain angle to the first agitator shaft 03. In addition to generating horizontal force, they also generate axial force, which is more effective in tumbling the material up and down, creating a complex flow pattern within the storage tank 01 and improving mixing efficiency.

[0038] Meanwhile, the first disc serrated impeller 07 and the second disc serrated impeller 08 can also be selected with different structures according to production needs. In some specific embodiments, the first disc serrated impeller 07 and the second disc serrated impeller 08 are flat-tooth disc impellers, flared-tooth disc impellers, or toothed disc impellers. The serration shape of the first disc serrated impeller 07 and the second disc serrated impeller 08 is triangular, trapezoidal, or rectangular.

[0039] The first disc sawtooth impeller 07 and the second disc sawtooth impeller 08 can be flat-tooth disc impellers, flared-tooth disc impellers, or toothed disc impellers. The sawtooths of the flat-tooth disc impeller are horizontally aligned with the disc, and during rotation, they primarily agitate and cut the material through the sawtooths, ensuring a certain degree of mixing in both horizontal and vertical directions. The flared-tooth disc impeller has sawtooths with a certain degree of flanging, which better handles materials with slightly higher viscosity or a tendency to clump. The toothed disc impeller has sawtooths close to the disc surface, generating a special shearing and pushing effect on the material during rotation.

[0040] The first disc sawtooth impeller 07 and the second disc sawtooth impeller 08 can have sawtooth shapes that are triangular, trapezoidal, or rectangular. Different sawtooth shapes produce different mixing effects. Triangular sawtooths, when rotating, can produce a strong cutting and piercing effect on materials, and can break up some larger lumps. Trapezoidal sawtooths, during the mixing process, can both cut the material and produce a certain amount of pushing and mixing action, and are suitable for mixing materials with medium viscosity and some lumps. Rectangular sawtooths produce a more stable mixing and pushing effect when rotating, and the strength of rectangular sawtooths is relatively high, so they can be used to process some materials with higher hardness.

[0041] Since the impellers inside the storage tank 01 can be selected with different structures according to production needs, the impellers are detachably connected to the agitator shaft so that they can be replaced. The small agitator 05 is detachably connected to the first agitator shaft 03; the annular impeller 05 is detachably connected to the first agitator shaft 03; and the first disc serrated impeller 07 and the second disc serrated impeller 08 are detachably connected to the second agitator shaft 04.

[0042] The detachable connection structures between the small stirring paddle 05 and the first stirring shaft 03, the annular impeller 05 and the first stirring shaft 03, and the first disc serrated impeller 07 and the second disc serrated impeller 08 and the second stirring shaft 04 can typically be achieved using key connections with bushings, bolt connections, etc. When adjusting the stirring effect, the annular impeller 05, the small stirring paddle 06, the first disc serrated impeller 07, or the second disc serrated impeller 08 can be replaced. Since the annular impeller 05, the small stirring paddle 06, the first disc serrated impeller 07, and the second disc serrated impeller 08 need to simultaneously perform stirring and crushing operations within the storage tank, regular maintenance of the equipment is required to maintain copper-zinc fertilizer production. If the annular impeller 05, the small stirring paddle 06, the first disc serrated impeller 07, or the second disc serrated impeller 08 is damaged, such as with blade deformation or wear, it can be quickly disassembled for repair or replacement, reducing equipment maintenance time and costs.

[0043] In this embodiment, the small stirring paddle 06 can be a flat paddle or an inclined paddle structure. The first disc sawtooth impeller 07 and the second disc sawtooth impeller 08 can be selected from different structures such as flat tooth shape, flip tooth shape, and attached tooth shape, and the sawtooth shape is diverse. This allows the four stirring impellers in the storage tank 01 to select different structures according to production needs. Furthermore, the stirring impellers and the stirring shaft are connected by key connection with bushings, bolt connection, and other detachable connection methods. This not only allows for flexible replacement of impellers when adjusting the stirring effect, but also allows for quick disassembly for repair or replacement when the stirring impellers are damaged, such as blade deformation or wear. This reduces equipment maintenance time and costs. At the same time, stirring impellers with different structures can also meet the stirring needs of different materials, improve the material mixing effect, and help improve the production efficiency and quality of copper-zinc fertilizer.

[0044] Please see Figure 1 In an optional embodiment, a drive device 09 is provided at the upper end of the first stirring shaft 03, and the drive device 09 is used to drive the first stirring shaft 03 to rotate.

[0045] In this embodiment, the first stirring shaft 03 is typically driven to rotate by a drive device 09. The drive device 09 can be a motor worm gear structure, with the worm connected to the motor and the first stirring shaft 03 connected to the worm. When the worm rotates, it drives the meshing worm wheel to rotate, causing the first stirring shaft 03 to rotate, thus achieving faster and more uniform stirring and improving stirring efficiency. The motor worm gear structure has a large transmission ratio, enabling both speed reduction and torque increase. When the motor outputs at a high speed and low torque, the worm gear transmission can reduce the speed and increase the torque to meet the higher torque requirements of the first stirring shaft 03. Simultaneously, the second stirring shaft 04 can be connected to the first stirring shaft 04 via gear transmission or chain transmission, obtaining power from the first stirring shaft 03. Alternatively, it can be driven by an independent drive device, allowing for flexible control of the second stirring shaft 04.

[0046] Please see Figure 1 In an optional embodiment, the first stirring shaft 03 is connected to the top of the storage tank 01 via a sealed bearing 10, which is used to prevent material leakage.

[0047] In this embodiment, the bearing 10 supports the rotation of the first stirring shaft 03, reducing friction and wear, ensuring smooth rotation, and bearing the weight of the first stirring shaft 03 and its associated components, as well as the radial and axial forces generated during stirring. Simultaneously, the bearing 10 prevents material leakage from the gap between the top of the storage tank 01 and the first stirring shaft 03. During stirring, the material is in motion and generates pressure; without proper sealing, material may leak from the connection between the first stirring shaft 03 and the storage tank 01, potentially causing material waste, environmental pollution, and even affecting the normal operation of the device. The second stirring shaft 04 is also connected to the top of the storage tank 01 via a sealing bearing 10.

[0048] Please see Figure 2 In an optional embodiment, a guide channel 11 is provided at the bottom of the storage tank 01. The guide channel 11 is used to guide the flow of materials and enhance the stirring effect.

[0049] In this embodiment, the guide channel 11 is located at the bottom of the storage tank 01, and can be annular or radial, etc., to guide the flow of materials and enhance the stirring effect. When the annular impeller 05, the small stirring paddle 06, the first disc serrated impeller 07, and the second disc serrated impeller 08 stir the materials, the materials will flow in the storage tank 01. The guide channel 11 can guide the materials at the bottom to flow along a specific path, making the materials circulate more orderly, thereby improving the uniformity of stirring.

[0050] In an optional embodiment, the annular impeller 05, the small agitator 06, the first disc serrated impeller 07, and the second disc serrated impeller 08 are all made of corrosion-resistant metal. The corrosion-resistant metal is 316L stainless steel, Hastelloy, or titanium alloy.

[0051] In this embodiment, since the annular impeller 05, small stirring paddle 06, first serrated disc impeller 07, and second serrated disc impeller 08 need to be in contact with the material for a long time, and the material itself and the reaction process may be corrosive, in order to ensure the service life and stirring effect of the small stirring paddle 06, first serrated disc impeller 07, and second serrated disc impeller 08, they are all made of corrosion-resistant metal materials, such as 316L stainless steel, Hastelloy, or titanium alloy. Appropriate corrosion-resistant metal materials are selected according to the specific composition of the material and the temperature, pressure, and other conditions during the stirring process, so that the small stirring paddle 06, first serrated disc impeller 07, and second serrated disc impeller 08 can operate stably for a long time.

[0052] It should be noted that the above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An apparatus for producing copper-zinc fertilizer, characterized in that, include: Storage tank, submersible mud pump, first stirring shaft, second stirring shaft, annular impeller, small stirring paddle, first disc serrated impeller and second disc serrated impeller; The submersible mud pump is connected to the storage tank and is used to transport materials; The first stirring shaft is located at the center of the storage tank. The small stirring paddle is mounted on the first stirring shaft; The annular impeller is disposed at the bottom of the storage tank via the first stirring shaft; The second stirring shaft is disposed in the storage tank, and the second stirring shaft is parallel to the first stirring shaft; The first and second disc serrated impellers are mounted on the second stirring shaft, and the first and second disc serrated impellers are arranged in a vertically parallel structure.

2. The apparatus according to claim 1, characterized in that, The small stirring paddle has a horizontal or inclined structure.

3. The apparatus according to claim 1, characterized in that, The first and second disc sawtooth impellers are flat-tooth disc impellers, flared-tooth disc impellers, or toothed disc impellers.

4. The apparatus according to claim 1, characterized in that, The sawtooth shape of the first disc sawtooth impeller and the second disc sawtooth impeller is triangular, trapezoidal or rectangular.

5. The apparatus according to claim 1, characterized in that, The first stirring shaft is connected to the top of the storage tank via a sealed bearing, which is used to prevent material leakage.

6. The apparatus according to claim 1, characterized in that, The small stirring paddle is detachably connected to the first stirring shaft; The annular impeller is detachably connected to the first stirring shaft; The first and second disc-shaped serrated impellers are detachably connected to the second stirring shaft.

7. The apparatus according to claim 1, characterized in that, The bottom of the storage tank is provided with a flow guide channel, which is used to guide the flow of materials and enhance the stirring effect.

8. The apparatus according to claim 1, characterized in that, A driving device is provided at the upper end of the first stirring shaft, and the driving device is used to drive the first stirring shaft to rotate.

9. The apparatus according to any one of claims 1 to 8, characterized in that, The annular impeller, the small stirring paddle, the first disc serrated impeller, and the second disc serrated impeller are all made of corrosion-resistant metal materials.

10. The apparatus according to claim 9, characterized in that, The corrosion-resistant metal material is 316L stainless steel, Hastelloy, or titanium alloy.