Mixing and homogenizing all-in-one machine

By incorporating counter-rotating stirring components and a jacketed flow channel cooling structure in the mixer, the problems of unsatisfactory mixing effect, severe heat generation, and bottom residue were solved, achieving efficient mixing homogenization and a stable flow field. This improved the fiberization effect of lithium battery dry electrode powder and the automation application of the equipment.

CN224141929UActive Publication Date: 2026-04-21HUNAN ONGOAL INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN ONGOAL INTELLIGENT TECH CO LTD
Filing Date
2025-04-17
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing mixers suffer from problems such as unsatisfactory mixing effect, severe heat generation, large amount of residue at the bottom, inability to form a stable flow field, and poor cooling effect during the mixing process. In particular, they cannot achieve strong convection and rapid fiberization by counter-rotating rotation when mixing dry electrode powder for lithium batteries.

Method used

A mixing and homogenizing integrated machine is designed. By setting the first stirring component and the second stirring component to rotate in opposite directions, a radial convection shear zone is formed. A jacketed flow channel is designed in the inner cavity of the turntable for cooling. Combined with a purging device to remove the bottom residue, a stable flow field and efficient cooling are achieved.

Benefits of technology

It achieves high-intensity shearing effect, rapid fiberization of materials, stable flow field, bottom residue rate of less than 0.5%, significantly improved cooling effect, prevents high-temperature damage to materials, and enhances the automation application capability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The mixing and homogenizing all-in-one machine comprises a stirring bin, a first stirring assembly and a second stirring assembly, the first stirring assembly is arranged at the bottom of the stirring bin; the second stirring assembly is arranged above the first stirring assembly; a circumferential outer diameter boundary formed by the tail end of the blade of the second stirring assembly in the rotating process is positioned in a circumferential inner diameter boundary formed by the rotation of the blade of the first stirring assembly, and a radial convection shearing area is formed between the circumferential outer diameter boundary and the circumferential inner diameter boundary. On one hand, materials can be sheared at high strength and fiberized quickly, and a stable circulation path is formed in the stirring bin; on the other hand, materials in a high-temperature shearing area can be rapidly cooled, heating of the materials is effectively inhibited, high-temperature damage of the materials is prevented, and residues at the bottom of the stirring bin are effectively removed.
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Description

Technical Field

[0001] This utility model relates to the field of material mixing technology, and in particular to an integrated mixing and homogenizing machine. Background Technology

[0002] The mixing and homogenization capabilities of lithium battery dry electrode powder fiberization mixers are highly demanding, requiring strong convective stirring to achieve the fibrous effect of PTFE. Existing mixers are generally based on a single-shaft high-speed mixer structure, using high-speed rotating blade-type impellers to generate frictional force in the powder, thus achieving the function of mixing and homogenization. However, because all impellers are connected to the same stirring shaft, each impeller rotates at the same speed, and the impellers are open-type, they cannot generate strong shearing force, resulting in unsatisfactory mixing effects. Furthermore, the large contact area between the impeller and the material leads to severe frictional heat generation and temperature runaway, limiting the development of dry electrode materials.

[0003] In contrast, the biaxial mixer used for dry electrode mixing improves the convective shearing effect of the powder by rotating two shafts at different speeds, but there is a problem that the opposite rotation causes the formation of a stable flow field. That is, the different rotation directions of the upper and lower blades cause the forward and reverse velocities to cancel each other out, and the powder cannot be tumbled quickly.

[0004] Experimental verification revealed that the mixing effects of co-rotating and counter-rotating dual-shaft impellers differ. In particular, when the two impeller blades rotate counter-rotating, the fiberization effect is significantly increased. Therefore, this invention urgently requires the design of a mixing device capable of achieving strong convection through counter-rotating rotation and maintaining a stable material flow field.

[0005] In addition, the core mixing zone of the existing twin-shaft mixer generates a lot of heat and cannot be equipped with a cooling jacket. When the material is mixed at high speed, the heat cannot be dissipated, which often causes the machine to shut down due to overheating.

[0006] Furthermore, existing twin-shaft mixers suffer from problems such as large amounts of residue at the bottom and incomplete discharge. Powder residue left in the mixer for a long time will stick to the bottom of the mixer, causing the bottom blades to jam. This is especially true for formulations with high binder content, which require frequent manual cleaning and limit the large-scale automated application of the equipment. Summary of the Invention

[0007] The purpose of this invention is to solve at least one of the above-mentioned technical problems by providing a mixing and homogenizing integrated machine with good shearing effect, strong flow field stability, good cooling effect, and easy cleaning of bottom residue.

[0008] The technical solution of this utility model is: a mixing and homogenizing integrated machine, including a mixing chamber, a first mixing component and a second mixing component; the first mixing component is located at the bottom of the mixing chamber; the second mixing component is located above the first mixing component; the circumferential outer diameter boundary formed by the blade end of the second mixing component during rotation is located within the circumferential inner diameter boundary formed by the rotation of the blade of the first mixing component, and a radial convection shear zone is formed between the two.

[0009] Furthermore, the first stirring assembly includes a turntable, at least two first blades arranged circumferentially along the turntable, and a first stirring shaft connected to the turntable, wherein the first stirring shaft is controlled to rotate by a first driving device.

[0010] Furthermore, the second stirring assembly includes a second stirring shaft and a second impeller connected to the lower end of the second stirring shaft. The second stirring shaft is controlled to rotate by a second driving device. The second impeller is composed of multiple symmetrically arranged blades forming an integrated structure.

[0011] Furthermore, at least two first blades of the first stirring assembly are symmetrically arranged, and their rotation trajectories form an annular region, which is jointly defined by the circumferential inner diameter boundary and the circumferential outer diameter boundary of the at least two first blades.

[0012] Furthermore, the inner cavity of the turntable is connected to the inner cavity of the first stirring shaft to form a jacketed flow channel for the flow of cooling liquid or heating liquid.

[0013] Furthermore, the lower end of the first stirring shaft is rotatably connected to an adapter. The first stirring shaft includes an inner shaft and an outer shaft. The adapter is provided with a liquid inlet communicating with the inner cavity of the inner shaft and a liquid outlet communicating with the inner cavity of the outer shaft. The inner cavity of the inner shaft is connected to the inner cavity of the turntable through the liquid inlet channel of the turntable's interlayer flow channel. The inner cavity of the turntable is connected to the inner cavity of the outer shaft through the liquid outlet channel of the interlayer flow channel. Multiple guide plates are arranged inside the turntable.

[0014] Furthermore, a protective cover extends downward from the center of the turntable at the position where it connects with the first stirring shaft. The protective cover is connected to the first stirring shaft, and a shaft seal is provided between the protective cover and its surrounding structure to form a dynamic seal.

[0015] Furthermore, the mixing chamber is provided with a discharge port, which is connected to the discharge chamber. The discharge chamber is provided with a drive cylinder, the piston end of which extends into the discharge chamber and is connected to the discharge port plug. The discharge port plug opens or closes the discharge port of the mixing chamber under the drive of the drive cylinder.

[0016] Furthermore, a gap is provided between the bottom surface of the turntable and the mixing chamber, and an air blowing port is provided in the gap. The air blowing port is connected to an air source through a control valve and is used to blow the material around the turntable.

[0017] Furthermore, at least one side of the mixing chamber is provided with a side mixing device.

[0018] Furthermore, the inner end of the blade of the first stirring assembly is connected to an inner shear ring, and the end of the blade of the second stirring assembly is connected to an outer shear ring. The area between the outer shear ring and the inner shear ring forms the convection shear zone.

[0019] The beneficial effects of this utility model are:

[0020] (1) By setting the positional relationship between the first stirring component and the second stirring component, a radial convection shear zone is formed, so that the material passing through the convection shear zone is sheared with high intensity, rapidly fiberized, and forms a stable circulation path in the mixing chamber.

[0021] (2) By designing a jacketed flow channel in the inner cavity of the turntable and the first stirring shaft, the cooling area is greatly increased. Moreover, the jacketed flow channel is located near the convective shear zone with the highest temperature, which can quickly cool the material in the high-temperature shear zone, effectively suppress the material heating, and prevent the material from being damaged at high temperature.

[0022] (3) By setting up a purging device and combining it with the structure of the turntable, the bottom airflow can purge the material around the turntable through the narrow gap, which can effectively remove the bottom residue of the mixing chamber. The material residue rate is less than 0.5%. Since the first mixing shaft seal does not directly contact the material, it will not be squeezed by the material, greatly reducing the risk of leakage. It will also not cause the bottom blades to get stuck, effectively improving the service life of the bottom first mixing component. Attached Figure Description

[0023] Figure 1 This is an internal sectional view of the all-in-one machine according to Embodiment 1 of this utility model;

[0024] Figure 2 This is a top view of the all-in-one machine according to Embodiment 1 of this utility model;

[0025] Figure 3 This is a diagram showing the positional relationship between the first stirring component and the second stirring component in Embodiment 1 of this utility model;

[0026] Figure 4 yes Figure 3 The top view of Embodiment 1 shown;

[0027] Figure 5 This is a schematic diagram of the second blade structure of Embodiment 1 of this utility model;

[0028] Figure 6 This is a cross-sectional view of the first stirring shaft and the turntable in Embodiment 2 of this utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the turntable cavity in Embodiment 2 of this utility model;

[0030] Figure 8 This is an internal sectional view of the adapter in Embodiment 2 of this utility model;

[0031] Figure 9 This is a structural schematic diagram of Embodiment 3 of the present invention;

[0032] Figure 10 This is a structural schematic diagram of Embodiment 5 of the present invention;

[0033] Figure 11 This is a structural schematic diagram of Embodiment 6 of the present invention;

[0034] Figure 12 This is a schematic diagram of the material flow trajectory in Embodiment 6 of the utility model.

[0035] Explanation of reference numerals in the attached diagram:

[0036] 1. Mixing chamber; 2. First mixing assembly; 3. Second mixing assembly; 4. Convection shear zone; 5. Frame; 6. Jacketed flow channel; 7. Plug telescopic cylinder; 8. Connecting cylinder; 9. Side mixing device;

[0037] 11. Guide vane; 12. Discharge port; 13. Discharge bin; 14. Discharge port plug; 15. Air inlet; 21. Turntable; 22. First impeller; 23. First stirring shaft; 24. First drive motor; 25. Transmission belt; 26. Outer shear ring; 31. Second stirring shaft; 32. Second impeller; 33. Second drive motor; 34. Inner shear ring; 61. Guide plate; 62. Inlet channel of the interlayer flow channel; 63. Outlet channel of the interlayer flow channel; 81. Shaft seal; 91. Third drive motor; 92. Third impeller;

[0038] 211. Protective housing; 231. Outer shaft; 232. Inner shaft; 233. Adapter;

[0039] 2331. Liquid inlet; 2332. Liquid outlet; 2333. Cooling water passage. Detailed Implementation

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example 1

[0041] like Figures 1-5 As shown: A mixing and homogenizing integrated machine includes a mixing chamber 1, a first mixing component 2, and a second mixing component 3; the first mixing component 2 is located at the bottom of the mixing chamber 1; the second mixing component 3 is located above the first mixing component 2; the circumferential outer diameter boundary formed by the blade end of the second mixing component 3 during rotation is located within the circumferential inner diameter boundary formed by the rotation of the blade of the first mixing component, and a radial convection shear zone 4 is formed between the two.

[0042] In this embodiment, the first stirring assembly 2 includes a turntable 21, two first blades 22 arranged circumferentially around the turntable, and a first stirring shaft 23 connected to the turntable. The first stirring shaft is controlled to rotate by a first driving device. Specifically, the first driving device includes a first driving motor 24 and a transmission belt 25. The first driving motor 24 is connected to the first stirring shaft 23 via the transmission belt 25. A frame 5 is located below the stirring chamber 1. The transmission belt 25 is located inside the frame 5. The first driving motor 24 is mounted on the outer top surface of the frame 5. The drive shaft of the first driving motor 24 extends into the frame 5 and is axially connected to the main pulley. A driven pulley is connected to the first stirring shaft 23. The transmission belt 25 wraps around the main pulley and the driven pulley. The first driving motor 24 drives the transmission belt 25 through the pulley, and the transmission belt 25 transmits power to the first stirring shaft 23, thereby driving the turntable 21 to rotate.

[0043] Furthermore, two first blades 22 are symmetrically connected to the turntable 21. Each first blade 22 has a notch for engaging with the edge of the turntable. The first blade 22 is embedded in and fixed to the edge of the turntable 21, forming a disc-shaped material-turning blade; alternatively, the first blade 22 can be embedded in the edge of the turntable and then reinforced by welding or other fixing methods. The rotational trajectories of the two first blades 22 form an annular area, which is jointly defined by the circumferential inner diameter boundary and the circumferential outer diameter boundary formed by the rotation of the two first blades. The circumferential inner diameter boundary refers to the inner circle boundary formed by the front ends of the two first blades 22 during rotation; the circumferential outer diameter boundary refers to the outer circle boundary formed by the ends of the two first blades 22 during rotation.

[0044] In this embodiment, the second stirring assembly 3 includes a second stirring shaft 31 and a second impeller 32 connected to the lower end of the second stirring shaft 31. The second stirring shaft 31 is controlled to rotate by a second drive motor 33. The top of the stirring chamber 1 is provided with a cover, and the second drive motor 33 is mounted on the upper end of the cover. The output end of the second drive motor 33 is connected to the second stirring shaft 31, which passes through the cover and extends into the stirring chamber 1 to connect with the second impeller 32. Preferably, the second impeller 32 is a combined structure formed by multiple symmetrically arranged blades, with 3 to 8 blades, more preferably 4 to 6. The second impeller 32 is designed as a pin-type impeller, i.e., the pin is located at the end of the impeller to break up dead zones in the powder circulation.

[0045] In this embodiment, the rotational speed of the second stirring component 3 is higher than that of the first stirring component 2, and the two rotate in opposite directions. The high-speed blades formed by the second stirring component 3 are surrounded by multiple first blades 22 of the first stirring component 2. That is, the circumferential outer diameter boundary formed by the end of the second blade 32 during rotation is located within the circumferential inner diameter boundary formed by the rotation of the two first blades 22, creating a radial convection shear zone 4 between the two boundaries. When the powder passes through the convection shear zone 4, it undergoes high-intensity shearing and rapid fiberization. Because the bottom first blades enclose the high-speed rotating second blades, the material will move in a circular motion under the action of the bottom blades and tumble upwards. Through this technology, the material can form a stable circulation path within the mixing chamber.

[0046] It is understood that in this embodiment, the first blade surrounds the second blade by directly extending the second blade into the range of the multiple first blades; or a groove is opened on the turntable, and the groove is opened at the circumferential inner diameter boundary formed by the multiple first blades, and the second blade extends into the groove.

[0047] In this embodiment, the top of the mixing chamber 1 is provided with a feed inlet, and a guide vane 11 is also installed inside the mixing chamber 1. The guide vane 11 is located above the first blade 22 and plays a guiding role for the material.

[0048] In summary, this embodiment designs the positional relationship between the blades of the first and second stirring components so that the first blade at the bottom wraps around the second blade. When the two stirring shafts rotate at different speeds and in opposite directions, the material can form a stable flow field in the stirring chamber. Example 2

[0049] like Figures 6-8 As shown: Based on Embodiment 1, in order to solve the technical problem of stirring and heating, this embodiment connects the inner cavity of the turntable 21 with the inner cavity of the first stirring shaft 23 to form a jacketed flow channel 6 for the flow of cooling liquid or heating liquid.

[0050] Specifically, the first stirring shaft 23 includes an outer shaft 231 and an inner shaft 232 disposed within the outer shaft, which are fitted together to form a single unit. A first driving device drives the outer shaft 231 to rotate, and the outer shaft 231 rotates together with the inner shaft 232, which in turn drives the turntable 21 to rotate. A protective cover 211 extends downward from the center of the turntable 21 at the point of connection with the first stirring shaft 23. The protective cover 211 is engaged or screwed to the outer wall step of the outer shaft 231. The top of the inner shaft 232 extends upward to the center of the turntable and is sealed to the turntable 21. The inner cavity of the turntable 21 is provided with multiple guide plates 61 for forming flow channels. The arrangement of each guide plate 61 allows cooling water to flow along the entire inner cavity area of ​​the turntable 21, forming a closed unidirectional flow channel to increase the cooling area. A double-layered flow channel inlet channel 62 is formed in the middle of the turntable 21 between the inner shaft 232 and the liquid inlet end of the inner cavity of the turntable 21, and a double-layered flow channel outlet channel 63 is formed between the outer shaft 231 and the liquid outlet end of the inner cavity of the turntable 21. That is, the upper part of the inner cavity of the inner shaft 232 is connected to the liquid inlet end of the inner cavity of the turntable 21 through the double-layered flow channel inlet channel 62, and the liquid outlet end of the inner cavity of the turntable 21 is connected to the inner cavity of the outer shaft 231 through the double-layered flow channel outlet channel 63. In this way, cooling water enters the inner cavity of the turntable 21 from the inner shaft 232 through the double-layered flow channel inlet channel 62, flows through the entire plate surface, and flows out from the double-layered flow channel outlet channel 63 of the turntable 21 into the outer shaft 231, thereby forming a unidirectional flow channel that can cover the plate surface.

[0051] More preferably, the lower ends of both the inner shaft 231 and the outer shaft 232 are connected to an adapter 233. The lower end of the adapter 233 is provided with a liquid inlet 2331. The end of the inner shaft 232 extends downwards and into the adapter 233, communicating with the liquid inlet 2331. One side of the adapter 233 is provided with a liquid outlet 2332. The adapter contains cooling water channels 2333 that communicate with both the inner cavity of the outer shaft and the liquid outlet. Cooling water output from the outer shaft 231 enters the cooling water channel 2333 within the adapter and is discharged from the liquid outlet 2332. External pipes connect the liquid inlet 2331 and the liquid outlet 2332 of the adapter. The adapter 233 and the outer shaft 231 are rotatably connected, allowing the outer shaft 231 to rotate along the adapter 233, thus ensuring unimpeded cooling water flow during the operation of the mixing chamber. The rotatable connection between the outer shaft and the adapter can be achieved using a universal joint or a sliding sleeve, etc.

[0052] The working principle of this embodiment is as follows: Cooling water flows in through the liquid inlet 2331 of the adapter, passes through the inner cavity of the inner shaft 232 and the liquid inlet channel 62 of the interlayer flow channel, and enters the inner cavity of the turntable 21. Under the action of the guide plate, the cooling water flows simultaneously from the upper and lower directions on one side of the turntable to the other side, and then converges from the upper and lower directions on the other side into the liquid outlet channel 63 of the interlayer flow channel, allowing the cooling water to flow across the entire surface of the turntable. Afterwards, it passes through the liquid outlet channel 63 of the interlayer flow channel and the inner cavity of the outer shaft 231 into the cooling water channel 2333 of the adapter, and finally exits from the liquid outlet 2332 of the adapter, forming a cooling water circulation channel. Because the cooling water forms a closed unidirectional flow channel within the turntable, the low-temperature cooling water exchanges heat with the material, carrying away the heat generated in the convective shear zone. Compared with conventional mixers, the cooling area can be increased by more than 15%, and the interlayer flow channel is located near the convective shear zone (the area with the highest temperature), which can rapidly cool the material in the high-temperature shear zone, effectively suppressing material heating and preventing high-temperature damage to the material. Example 3

[0053] like Figure 1 and Figure 9 As shown: Based on Example 1 and / or Example 2, this example designs a purging structure to further solve the technical problem of large residue at the bottom of the mixing chamber.

[0054] Specifically, a discharge port 12 is provided on the lower side of the mixing chamber 1, and the discharge port 12 is connected to the discharge chamber 13. A plug telescopic cylinder 7 is installed on the outside of the discharge chamber 13. The piston end of the plug telescopic cylinder 7 extends into the discharge chamber and connects with the discharge port plug 14, which is used to drive the discharge port plug 14 to seal or disengage from the discharge port 12 of the mixing chamber. The bottom of the discharge chamber 13 is provided with an outlet for discharging materials.

[0055] In this embodiment, a connecting cylinder 8 connects the bottom of the mixing chamber 1 to the frame 5. The first mixing shaft 23 extends into the connecting cylinder 8 and into the frame 5. The protective cover 211 of the turntable also extends into the inlet of the connecting cylinder 8. The inlet of the connecting cylinder 8 extends downward to form an inlet sidewall. A shaft seal 81 is provided between the inlet sidewall and the protective cover of the turntable to form a dynamic seal. The protective cover 211 and the shaft seal 81 can protect the first mixing shaft 23, preventing it from directly contacting the material and allowing it to rotate smoothly.

[0056] In this embodiment, a gap is provided between the bottom surface of the turntable 21 and the mixing chamber 1, and an air inlet 15 is provided at the gap. The air inlet 15 is connected to an air storage tank via a pulse valve. The air storage tank can be located inside the frame or outside the entire integrated machine. It can be understood that in this embodiment, an opening can be provided on the bottom surface of the mixing chamber 1, so that the top of the connecting cylinder 8 extends into the mixing chamber 1 and is sealed to the mixing chamber 1. A gap is provided between the bottom surface of the turntable 21, the top surface of the connecting cylinder 8, and the bottom surface of the mixing chamber 1. The air inlet 15 is an air inlet connector or air inlet pipe, located on the bottom surface of the mixing chamber 1 or the top surface of the connecting cylinder 8. The air inlet 15 is preferably located on the side closer to the discharge port 12.

[0057] The working principle of this embodiment is as follows: When the mixed material is discharged, the discharge port plug is disengaged from the discharge port of the mixing chamber under the drive of the plug telescopic cylinder. The air blowing port under the turntable is connected to the air storage tank through the pulse valve. With the large volume and high pressure of compressed air, combined with the structural characteristics of the turntable, the bottom airflow blows through the narrow gap to sweep the material around the turntable, which can effectively remove the residue at the bottom of the mixing chamber. The material residue rate is less than 0.5%, which is more than 100% better than the existing high-efficiency mixer.

[0058] Meanwhile, this embodiment uses a rotary paddle + jet structure design to ensure that the first stirring shaft seal does not directly contact the material and is not subject to material compression, thus greatly reducing the risk of leakage and effectively improving the service life of the bottom seal. Example 4

[0059] like Figure 1 As shown: Based on Example 1, Example 2 or Example 3, this example adds a side stirring device 9 to the side of the stirring drum to enhance the mixing effect of the materials.

[0060] The side stirring device 9 includes a third drive motor 91 and a third impeller 92. The output end of the third drive motor 91 is connected to a third stirring shaft, which extends into the stirring chamber 1 and is connected to the third impeller 92. The third impeller 92 is preferably designed as a flying knife type impeller.

[0061] This embodiment combines the side stirring device 9 with the first stirring component 2 and the second stirring component 3 to greatly improve the mixing effect of materials and increase stirring efficiency. Example 5

[0062] like Figure 10 As shown: Based on Embodiment 1, Embodiment 2, or Embodiment 3, the number of first blades 22 on the turntable of the first stirring assembly is preferably 3 to 8, and they are symmetrically arranged. By increasing the number, the upward turning effect of the material can be enhanced, and the shearing of multiple blades is more frequent, which can greatly increase the shearing probability and significantly improve the mixing effect. Example 6

[0063] like Figure 11 and Figure 12 As shown: Based on Example 1, Example 2, or Example 3, a shear ring is added to the first and second stirring components to further increase the material dispersion probability and improve the shear dispersion effect. Specifically, an outer shear ring 26 is circumferentially connected to the inner end of a plurality of first blades 22, and an inner shear ring 34 is circumferentially connected to the end of the second blade 32, forming a radial convection shear zone 4 between the outer shear ring 26 and the inner shear ring 34.

[0064] In summary, this invention, by setting the positional relationship between the first and second stirring components, forms a radial convection shear zone. This allows the material passing through the convection shear zone to undergo high-intensity shearing, rapid fiberization, and the formation of a stable circulation path within the mixing chamber. By designing a jacketed flow channel within the inner cavity of the turntable and the first stirring shaft, the cooling area is significantly increased. Furthermore, the jacketed flow channel, located near the highest-temperature convection shear zone, can rapidly cool the material in the high-temperature shear zone, effectively suppressing material heating and preventing high-temperature damage. The inclusion of a purging device allows airflow from the bottom to purge the material around the turntable through narrow gaps, effectively removing residue from the bottom of the mixing chamber. The material residue rate is less than 0.5%. Since the first stirring shaft seal does not directly contact the material, it is not subject to material compression, greatly reducing the risk of leakage and preventing bottom impeller jamming, thus effectively improving the service life of the bottom first stirring component.

[0065] Furthermore, the term "connection" should be interpreted broadly, for example, it can include fixed connections, detachable connections, or integral connections; it can include direct connections or indirect connections through an intermediate medium, and it can also include internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0066] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0067] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A mixing homogenizing all-in-one machine, comprising a stirring bin, a first stirring assembly and a second stirring assembly; the first stirring assembly is arranged at the bottom of the stirring bin; the second stirring assembly is arranged above the first stirring assembly; characterized in that, The blades of the second stirring assembly are located within the circumferential inner diameter boundary formed by the rotation of the blades of the first stirring assembly, and a radial convection shear zone is formed between them.

2. The hybrid-homogeneous all-in-one according to claim 1, wherein, The first stirring assembly includes a turntable, at least two first blades arranged circumferentially along the turntable, and a first stirring shaft connected to the turntable, wherein the first stirring shaft is controlled to rotate by a first driving device; or the second stirring assembly includes a second stirring shaft and a second blade connected to the lower end of the second stirring shaft, wherein the second stirring shaft is controlled to rotate by a second driving device.

3. The hybrid-homogeneous all-in-one according to claim 2, wherein, The first stirring assembly has at least two first blades symmetrically arranged, and their rotation trajectories form an annular region, which is jointly defined by the circumferential inner diameter boundary and the circumferential outer diameter boundary of the at least two first blades.

4. The hybrid-homogeneous all-in-one according to claim 2 or 3, characterized in that, The inner cavity of the turntable is connected to the inner cavity of the first stirring shaft, forming a jacketed flow channel for the flow of cooling liquid or heating liquid.

5. The hybrid-homogeneous all-in-one machine of claim 4, wherein, The lower end of the first stirring shaft is rotatably connected to an adapter. The first stirring shaft includes an inner shaft and an outer shaft. The adapter is provided with a liquid inlet communicating with the inner cavity of the inner shaft and a liquid outlet communicating with the inner cavity of the outer shaft. The inner cavity of the inner shaft is connected to the inner cavity of the turntable through the liquid inlet channel of the turntable's interlayer flow channel. The inner cavity of the turntable is connected to the inner cavity of the outer shaft through the liquid outlet channel of the interlayer flow channel. Multiple guide plates are arranged inside the turntable.

6. The hybrid-homogeneous all-in-one according to claim 2 or 3, characterized in that, The center of the turntable extends downwards to form a protective cover at the location where it connects with the first stirring shaft. The protective cover is connected to the first stirring shaft, and a shaft seal is provided between the protective cover and its surrounding structure to form a dynamic seal.

7. The hybrid-homogeneous all-in-one according to claim 1 or 2 or 3, characterized in that, The mixing chamber is provided with a discharge port, which is connected to the discharge chamber. The discharge chamber is provided with a drive cylinder, the piston end of which extends into the discharge chamber and is connected to the discharge port plug. The discharge port plug is opened or closed by the drive cylinder.

8. The hybrid-homogeneous all-in-one according to claim 2 or 3, characterized in that, A gap is provided between the bottom surface of the turntable and the mixing chamber, and an air blowing port is provided in the gap. The air blowing port is connected to an air source through a control valve and is used to blow the material around the turntable.

9. The hybrid-homogeneous all-in-one according to claim 1 or 2 or 3, characterized in that, The mixing chamber is equipped with a side mixing device on at least one side.

10. The integrated mixing and homogenizing machine according to claim 1, 2, or 3, characterized in that, The inner end of the blade of the first stirring assembly is connected to an inner shear ring, and the end of the blade of the second stirring assembly is connected to an outer shear ring. The area between the outer shear ring and the inner shear ring forms the convection shear zone.