A high speed mixing device

Abstract

The utility model discloses a high -speed mixing device, including mixing cylinder, industrial computer all -in -one, the top rotation of mixing cylinder is connected with the water distribution shaft that penetrates to the inside, the water distribution shaft and mixing cylinder between the common installation has rotary unit, the both sides of water distribution shaft's outer surface all fixed intercommunication has a plurality of pipe shafts, a plurality of pipe shafts common fixed intercommunication has the header, the bottom fixed intercommunication of header has lower swivel joint. In the utility model, through the water distribution shaft, pipe shaft and header structure integrated in the inside rotation of mixing cylinder, and in its inside pass in the circulating refrigerant, can directly, high -efficiently absorb the heat that produces from the slurry inside in the high -speed mixing process because of shear friction, effectively solved the background art in high -speed mixing when because mechanical energy conversion leads to slurry local overheating, and then caused the technical problem of negative active material oxidation degeneration, improved the mixing uniformity, stability and consistency of lithium battery negative slurry significantly.

Description

Technical Field

[0001] This utility model relates to the field of mixing technology, and in particular to a high-speed mixing device. Background Technology

[0002] With the rapid development of new energy vehicles and the energy storage industry, higher requirements have been placed on the energy density, cycle life, and safety performance of lithium-ion batteries. As a core component of lithium-ion batteries, the uniformity, stability, and consistency of the negative electrode slurry directly determine the quality of the negative electrode sheet, thus having a crucial impact on the overall performance of the battery.

[0003] In the preparation of lithium battery anode slurry, mixing and dispersion is one of the most critical process steps. Currently, high-speed mixing devices (such as high-speed dispersers) are commonly used in industry to stir and disperse anode active materials (such as graphite, silicon-carbon composites, etc.), conductive agents, binders (such as CMC, SBR), and solvents. This equipment relies on the strong shear force generated by the high-speed rotating blades to quickly break up material agglomerates and achieve preliminary mixing, offering advantages such as high efficiency and strong dispersion ability.

[0004] However, the applicant discovered a significant and urgent technical flaw in such high-speed mixing devices during actual production applications: severe localized overheating occurs during the mixing process. The mechanism is that the high-speed rotating blades input a large amount of mechanical energy into the slurry, which is ultimately converted into heat, causing a sharp rise in slurry temperature. This locally high-energy environment accelerates the oxidation reaction of the negative electrode active material (especially certain surface-modified graphite or silicon-based materials), altering its surface properties and increasing the risk of side reactions.

[0005] To address this, we propose a high-speed mixing device. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-speed mixing device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a high-speed mixing device, including a mixing cylinder and an industrial control integrated machine, wherein a water distribution shaft extending through to the interior is rotatably connected to the top of the mixing cylinder, and a rotating component is installed between the water distribution shaft and the mixing cylinder.

[0008] Multiple pipe shafts are fixedly connected to each other on both sides of the outer surface of the water distribution shaft. The multiple pipe shafts are fixedly connected to a collection pipe. A lower rotary joint is fixedly connected to the bottom of the collection pipe. A return pipe that is fixedly connected to the mixing cylinder is fixedly connected to the fixed end of the lower rotary joint.

[0009] The top of the water distribution shaft is fixedly connected to an upper rotary joint, and the fixed end of the upper rotary joint is fixedly connected to an inlet pipe. A refrigeration component is installed between the inlet pipe and the return pipe.

[0010] A housing is fixedly connected to one side of the outer surface of the mixing cylinder, and the refrigeration component is connected to the housing. The industrial control all-in-one computer is fixedly embedded on one side of the outer wall of the housing. The return pipe extends through the inner wall of the mixing cylinder to the inside of the housing, and the liquid inlet pipe extends through the top of the housing to the inside.

[0011] Furthermore, the rotating assembly includes a motor and two meshing gears. The motor is fixedly mounted on the top of the mixing drum, and the drive end of the motor is fixedly connected to the adjacent gear. The other gear is fixedly sleeved on the outer surface of the water distribution shaft. Through gear meshing, the power transmission is accurate and stable.

[0012] Furthermore, the refrigeration component includes a first expansion valve, which is fixedly installed inside the housing and is fixedly interconnected with the return pipe. Another port of the first expansion valve is fixedly interconnected with a first fixed pipe. The top of the first fixed pipe is fixedly interconnected with a compressor, which is fixedly connected to the housing. Another port of the compressor is set through the housing and is fixedly interconnected with an air-cooled condenser, which is a key link to achieve continuous heat transfer.

[0013] Furthermore, another interface of the air-cooled condenser is provided through the shell and is fixedly connected to a refrigerant tank. A second expansion valve is fixedly connected to the top of the refrigerant tank, and another interface of the second expansion valve is fixedly connected to the liquid inlet pipe. This structure completes the storage, throttling, and retransmission process of the refrigerant.

[0014] Furthermore, a mounting bracket is fixedly connected to one side of the outer surface of the mixing cylinder, and the air-cooled condenser is fixedly connected to the top of the mounting bracket. The mounting bracket provides support for the air-cooled condenser, which facilitates the installation of the air-cooled condenser.

[0015] Furthermore, the mixing cylinder and the mounting frame are fixedly connected to a support frame, which connects the mixing cylinder and the mounting frame into a rigid whole, greatly enhancing the overall structural stability of the equipment.

[0016] The beneficial effects of this utility model are:

[0017] In use, this invention integrates a water distribution shaft, a pipe shaft, and a manifold structure that rotate inside the mixing cylinder, and circulates a refrigerant inside. This allows for the direct and efficient absorption of heat generated by shear friction from within the slurry during high-speed mixing. This effectively solves the technical problem in the prior art where local overheating of the slurry due to mechanical energy conversion during high-speed mixing leads to oxidation and deterioration of the negative electrode active material. It significantly improves the mixing uniformity, stability, and consistency of lithium battery negative electrode slurry. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the overall partial cross-sectional structure of this utility model;

[0022] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle.

[0023] The attached figures are labeled as follows:

[0024] 1. Mixing cylinder; 2. Support frame; 3. Mounting bracket; 4. Air-cooled condenser; 5. Housing; 6. Industrial control integrated computer; 7. Liquid inlet pipe; 8. Upper rotary joint; 9. Motor; 10. Gear; 11. Pipe shaft; 12. Manifold; 13. Lower rotary joint; 14. Water distribution shaft; 15. Return pipe; 16. Second expansion valve; 17. Refrigerant tank; 18. First expansion valve; 19. First fixed pipe; 20. Compressor. Detailed Implementation

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

[0026] like Figures 1-4As shown, a high-speed mixing device is disclosed, including a mixing cylinder 1 and an industrial control integrated computer 6. A water distribution shaft 14 extending through the interior is rotatably connected to the top of the mixing cylinder 1. A rotating assembly is installed between the water distribution shaft 14 and the mixing cylinder 1. The rotating assembly includes a motor 9 and two meshing gears 10. The motor 9 is fixedly installed on the top of the mixing cylinder 1, and the drive end of the motor 9 is fixedly connected to the adjacent gear 10. The other gear 10 is fixedly sleeved on the outer surface of the water distribution shaft 14. The water distribution shaft 14 and the mixing cylinder 1 are rotatably connected through a bearing seat. The seat of the bearing seat is fixed to the mixing cylinder 1, and the inner ring of the bearing inside the bearing seat is fixed to the water distribution shaft 14. The bearing inside the bearing seat is sealed with a packing gland.

[0027] Multiple pipe shafts 11 are fixedly connected to each other on both sides of the outer surface of the water distribution shaft 14. The multiple pipe shafts 11 are fixedly connected to the manifold 12. The bottom of the manifold 12 is fixedly connected to the lower rotary joint 13. The fixed end of the lower rotary joint 13 is fixedly connected to the return pipe 15, which is fixedly connected to the mixing cylinder 1. Both the pipe shafts 11 and the manifold 12 are made of high-cleanliness 316 stainless steel seamless pipes and also have good thermal conductivity.

[0028] A top rotary joint 8 is fixedly connected to the top of the water distribution shaft 14. An inlet pipe 7 is fixedly connected to the fixed end of the top rotary joint 8. A refrigeration assembly is installed between the inlet pipe 7 and the return pipe 15. A housing 5 is fixedly connected to one side of the outer surface of the mixing cylinder 1, and the refrigeration assembly is connected to the housing 5. The return pipe 15 extends through the inner wall of the mixing cylinder 1 into the interior of the housing 5. The inlet pipe 7 extends through the top of the housing 5 into the interior. The refrigeration assembly includes a first expansion valve 18, which is fixedly installed inside the housing 5 and is fixedly connected to the return pipe 15. A first fixed pipe 19 is fixedly connected to the other port of the first expansion valve 18. The top of the first fixed pipe 19 is fixed... A compressor 20 is connected to the housing 5, and the compressor 20 is fixedly connected to the housing 5. Another port of the compressor 20 passes through the housing 5 and is fixedly connected to an air-cooled condenser 4. Another port of the air-cooled condenser 4 passes through the housing 5 and is fixedly connected to a refrigerant tank 17. A second expansion valve 16 is fixedly connected to the top of the refrigerant tank 17, and the other port of the second expansion valve 16 is fixedly connected to the liquid inlet pipe 7. A mounting bracket 3 is fixedly connected to one side of the outer surface of the mixing cylinder 1, and the air-cooled condenser 4 is fixedly connected to the top of the mounting bracket 3. The air-cooled condenser 4 is a heat dissipation component in the refrigeration cycle system, usually composed of a condensing coil made of copper tubes and aluminum fins and a forced convection fan. Its function is to receive the high-temperature and high-pressure gaseous refrigerant discharged from the compressor 20, use ambient air as a cooling medium, and force airflow through the fan, so that the refrigerant releases heat to the air as it flows through the coil, thereby condensing into a high-temperature and high-pressure liquid refrigerant.

[0029] The mixing cylinder 1 and the mounting frame 3 are fixedly connected to the support frame 2. The support frame 2 is the basic load-bearing structure of the device and is usually welded from steel profiles.

[0030] Furthermore, the industrial control all-in-one computer 6 is fixedly embedded on one side of the outer wall of the housing 5. The industrial control all-in-one computer 6 is the control center of the entire device. It integrates an industrial computer, a monitor, a touch screen and necessary I / O interfaces into one unit. The electrical components of the industrial control all-in-one computer 6 in this application are electrically connected, which is conducive to controlling the overall operation.

[0031] Working principle: After the device is started, the industrial control computer 6 controls the rotating component to work. The motor 9 drives the water distribution shaft 14 to rotate at high speed inside the mixing drum 1 through a pair of meshing gears 10.

[0032] Multiple pipe shafts 11 fixedly connected to the water distribution shaft 14 and the collection pipe 12 connected to them rotate together. The rotating pipe shafts 11 and collection pipe 12 penetrate deep into the slurry. Their unique structure creates strong shearing, impact and agitation on the material inside the cylinder when rotating, thereby achieving high-speed and uniform mixing of the material and effectively breaking up agglomerated particles.

[0033] During the mixing process, the heated slurry transfers its heat to the manifold 12 and the tube shaft 11, which are constantly immersed in the slurry and contain refrigerant flowing within it. As the low-temperature liquid refrigerant flows through the manifold 12 and the tube shaft 11, it absorbs heat from the slurry and evaporates, transforming into a low-temperature, low-pressure gaseous refrigerant. This process continuously and directly absorbs heat from the heat source (slurry), effectively suppressing the rise in slurry temperature.

[0034] The vaporized refrigerant is collected through the manifold 12, flows out through the central passage of the lower rotary joint 13, and enters the return pipe 15. The lower rotary joint 13 ensures a sealed connection between the stationary return pipe 15 and the rotating manifold 12.

[0035] Low-temperature, low-pressure gaseous refrigerant enters the refrigeration system inside the casing 5 through the return pipe 15. It first flows through the first expansion valve 18 (which serves as a throttling and regulating valve), and then enters the compressor 20. The compressor 20 compresses the refrigerant gas, transforming it into a high-temperature, high-pressure gas. Next, the high-temperature, high-pressure refrigerant gas enters the air-cooled condenser 4, where it exchanges heat with the outside air under the action of a fan, releasing heat and condensing into a high-temperature, high-pressure liquid refrigerant.

[0036] The liquid refrigerant flows into the refrigerant tank 17 for temporary storage. Afterward, the liquid refrigerant passes through the second expansion valve 16 for throttling and pressure reduction, and its temperature drops sharply, turning back into a low-temperature, low-pressure liquid (or gas-liquid mixture) refrigerant.

[0037] The low-temperature refrigerant is transported back to the high-speed rotating water distribution shaft 14 through the liquid inlet pipe 7 and the upper rotary joint 8, and then redistributed to each pipe shaft 11 and the manifold 12 to start the next cycle of heat absorption process.

[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-speed mixing device, comprising a mixing drum (1) and an industrial control integrated computer (6), characterized in that: The top of the mixing cylinder (1) is rotatably connected to a water distribution shaft (14) that extends into the interior, and a rotating assembly is installed between the water distribution shaft (14) and the mixing cylinder (1). Multiple pipe shafts (11) are fixedly connected to each other on both sides of the outer surface of the water distribution shaft (14). The multiple pipe shafts (11) are fixedly connected to a collection pipe (12). The bottom of the collection pipe (12) is fixedly connected to a lower rotary joint (13). The fixed end of the lower rotary joint (13) is fixedly connected to a return pipe (15) that is fixedly connected to the mixing cylinder (1). The top of the water distribution shaft (14) is fixedly connected to an upper rotary joint (8), and the fixed end of the upper rotary joint (8) is fixedly connected to an inlet pipe (7). A refrigeration component is installed between the inlet pipe (7) and the return pipe (15). A housing (5) is fixedly connected to one side of the outer surface of the mixing cylinder (1), and the refrigeration component is connected to the housing (5). The industrial control computer (6) is fixedly embedded on one side of the outer wall of the housing (5). The return pipe (15) extends through the inner wall of the mixing cylinder (1) to the inside of the housing (5), and the liquid inlet pipe (7) extends through the top of the housing (5) to the inside.

2. The high-speed mixing device according to claim 1, characterized in that: The rotating assembly includes a motor (9) and two meshing gears (10), with the motor (9) fixedly mounted on the top of the mixing drum (1). The driving end of the motor (9) is fixedly connected to the adjacent gear (10), and the other gear (10) is fixedly sleeved on the outer surface of the water distribution shaft (14).

3. The high-speed mixing device according to claim 1, characterized in that: The refrigeration assembly includes a first expansion valve (18), which is fixedly installed inside the housing (5) and is fixedly connected to the return pipe (15). The other port of the first expansion valve (18) is fixedly connected to a first fixed pipe (19). The top of the first fixed pipe (19) is fixedly connected to a compressor (20), and the compressor (20) is fixedly connected to the housing (5). The other port of the compressor (20) is set through the housing (5) and is fixedly connected to an air-cooled condenser (4).

4. The high-speed mixing device according to claim 3, characterized in that: The other port of the air-cooled condenser (4) is set through the housing (5) and is fixedly connected to the refrigerant tank (17). The top of the refrigerant tank (17) is fixedly connected to the second expansion valve (16), and the other port of the second expansion valve (16) is fixedly connected to the liquid inlet pipe (7).

5. A high-speed mixing device according to claim 4, characterized in that: A mounting bracket (3) is fixedly connected to one side of the outer surface of the mixing cylinder (1), and the air-cooled condenser (4) is fixedly connected to the top of the mounting bracket (3).

6. A high-speed mixing device according to claim 5, characterized in that: The mixing cylinder (1) and the mounting frame (3) are fixedly connected to a support frame (2).

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