Nanometer material dispersing device

Abstract

The utility model relates to a nano material dispersing device, belongs to the technical field of nano material dispersion, and solves the problems that in the prior art, nano materials are non-uniformly dispersed in a solvent and are easy to agglomerate, and the dispersion stability is difficult to maintain for a long time. The device integrates multiple functions of stirring, ultrasonic treatment, temperature control and the like so as to solve the common problems of non-uniformity and agglomeration of nano materials in the dispersion process. The device comprises a stirring container, a stirring device, an ultrasonic dispersion device, a temperature control device, a reflux device, a laser particle analyzer and other key components. The components work cooperatively to improve the efficiency and uniformity of the dispersion process. The stirring device is specially provided with a helical ribbon type stirring paddle and a double-screw type stirring paddle so as to adapt to the dispersion characteristics of different nanometer materials, and the stirring device is matched with an ultrasonic dispersion and temperature control device for use, so that the dispersion effect is optimized. The introduction of the laser particle analyzer realizes the real-time monitoring of the dispersion state of the nano-particles, ensures that the nano-materials are uniformly dispersed in the solvent and maintain long-term stability, and effectively solves the problems of non-uniform dispersion and agglomeration in the traditional method.

Description

TECHNICAL FIELD

[0001] The utility model relates to nanometer material dispersion technical field especially, it relates to a nanometer material dispersion device. BACKGROUND

[0002] Nanometer material shows huge application potential in numerous fields due to its unique physical and chemical properties. However, to push it from laboratory research to practical application, firstly, its dispersion problem in solvent needs to be solved. The high specific surface area of nanometer material leads to extremely high surface energy, which is easy to form agglomerates, thereby reducing its active surface area and losing the quantum effect and surface effect unique to nanometer scale. In addition, the surface modification process is complex and difficult to control accurately, which may introduce impurities or change the intrinsic properties of nanometer material. At the same time, even if nanometer material can be temporarily dispersed in solvent, it also faces long-term stability problem, and effective strategies need to be taken to regulate the interaction force between nanometer particles. SUMMARY

[0003] In view of the above analysis, the utility model aims at providing a nanometer material dispersion device to solve the problems of uneven dispersion, easy agglomeration and difficult long-term maintenance of dispersion stability of nanometer material in solvent in the prior art.

[0004] The utility model discloses a nanometer material dispersion device, including: stirring container, the stirring device, ultrasonic dispersion device and temperature control device of setting in the stirring container interior, the reflux device and laser particle size instrument of setting in the stirring container outside,

[0005] The utility model discloses a nanometer material dispersion device, including: stirring container, the stirring device, ultrasonic dispersion device and temperature control device of setting in the stirring container interior, the reflux device and laser particle size instrument of setting in the stirring container outside,

[0006] Among them, the reflux device includes circulating pump and circulating pipeline, and the circulating pipeline is communicated with the bottom and the upper portion of the stirring container to form a circulating loop, and the laser particle size instrument is connected with the circulating pipeline in parallel through a detection branch.

[0007] Further, the circulating pipeline includes: a first circulating pipeline connecting the bottom of the stirring container with the inlet of the circulating pump; and a second circulating pipeline connecting the outlet of the circulating pump with the upper portion of the stirring container; and the detection branch is a circulating branch pipe connected in parallel with the second circulating pipeline.

[0008] Further, the diameter of the circulating branch pipe is 1 / 3 to 1 / 2 of the diameter of the second circulating pipeline.

[0009] Further, the laser particle size instrument is installed on the circulating branch pipe through a detection cavity connector.

[0010] Further, the stirring device includes a stirring paddle, which is a spiral ribbon stirring paddle or a double screw stirring paddle.

[0011] Further, when the stirring paddle is a spiral ribbon paddle, the stirring paddle comprises: a vertical main shaft; a plurality of horizontal support arms equidistantly distributed along the main shaft in the axial direction, the lengths of the plurality of horizontal support arms decreasing successively from top to bottom; and the length of the lowermost horizontal support arm is 0.6-0.8 times the length of the adjacent horizontal support arm above.

[0012] Further, when the stirring paddle is a double screw paddle, the stirring paddle comprises: two rotors rotating in the same direction, the cross section of the rotor is an ellipse, the length of the short axis of the ellipse is the same as the diameter of the rotor rotation shaft, and the length of the long axis is 1.5-1.6 times the length of the short axis.

[0013] Further, the ultrasonic dispersion device comprises: an ultrasonic transducer array arranged at the bottom of the stirring container and a filter arranged at the center of the bottom of the container, the filter being connected with the liquid outlet.

[0014] Further, when the stirring paddle is a spiral ribbon paddle, the ultrasonic transducer array is circularly distributed around the filter in the middle; when the stirring paddle is a double screw paddle, the ultrasonic transducer array is in the shape of "8" and is distributed around the filter in the middle.

[0015] Further, the temperature control device comprises:

[0016] When the stirring paddle is a spiral ribbon paddle, the temperature control device comprises: a heating element group arranged on the inner wall of the stirring container and a sensor arranged above the heating element group;

[0017] When the stirring paddle is a double screw paddle, the temperature control device comprises: a heating element group arranged at the bottom of the container and a thermocouple.

[0018] Compared with the prior art, the present application can achieve at least one of the following beneficial effects:

[0019] 1) The present application optimizes the structure and cooperates the stirring device, the ultrasonic dispersion device and the temperature control device, effectively improves the dispersion uniformity of the nanomaterial. The special structure design of the spiral ribbon paddle or the double screw paddle, such as the lengths of the plurality of horizontal support arms decreasing successively from top to bottom or the elliptical rotor enhancing the fluid shear force; the circular or "8" shape layout of the ultrasonic transducer array according to the type of the stirring paddle makes the cavitation effect accurately cover the high shear area; cooperating with the differentially arranged temperature control device (inner wall or bottom heating), the three synergistically not only improve the initial dispersion efficiency, but also maintain the long-term stability of the dispersion system.

[0020] 2)The circulating pipeline system of the innovative design connects the laser particle size analyzer through the branch pipe of a specific pipe diameter (1 / 3~1 / 2 of the main loop), and solves the contradiction between the traditional equipment detection sampling and continuous production. The design can not only ensure the stability of the main loop flow, but also ensure the real-time and representativeness of the detection data through the optimized branch pipe flow rate. In combination with the filter structure at the bottom of the container, a closed-loop system of dispersion-circulation-detection-recovery is formed, and dynamic monitoring and adjustment of process parameters are realized.

[0021] 3)Each functional module adopts a targeted structure design and is independent of each other: the matching layout of the stirring paddle and the ultrasonic array is suitable for different viscosity materials; the temperature control device is differentially configured according to the flow field characteristics; the circulating pipeline system connects each component through a standard interface. Such modular design not only facilitates the functional combination adjustment for specific nanomaterials, but also simplifies the cleaning and maintenance process of the equipment. In particular, the setting of the central filter at the bottom of the container not only ensures the nanomaterial recovery efficiency, but also avoids the flow dead angle problem caused by the traditional side-mounted filter.

[0022] 4)Through the geometric matching of the stirring paddle structure and the ultrasonic array (such as the double screw matched with the "8" shaped array), the mechanical shearing action zone and the ultrasonic cavitation zone overlap in space, and the energy utilization rate is improved. The position design (inner wall / bottom) of the temperature control element matches the flow field characteristics generated by the corresponding stirring type, avoiding the local overheating or temperature unevenness caused by the traditional single temperature control layout.

[0023] In the utility model, the above technical solutions can be combined with each other to realize more preferred combination solutions. Other features and advantages of the utility model will be described in the subsequent content, and some advantages can become apparent from the description or be understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the content specially pointed out in the text and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings are only used for the purpose of showing specific embodiments and are not considered as limiting the utility model, and in the whole drawings, the same reference signs represent the same parts.

[0025] Figure 1 It is the whole structure schematic view of nanomaterial dispersion device of the utility model;

[0026] Figure 2 It is ultrasonic transducer array schematic view when stirring paddle is spiral ribbon stirring paddle;

[0027] Figure 3 It is the installation structure schematic view of heating element in the device of the utility model;

[0028] Figure 4The structure diagram of the screw stirring paddle in the device of the utility model;

[0029] Figure 5 The schematic diagram of the ultrasonic transducer array when the stirring paddle is a double screw stirring paddle;

[0030] Figure 6 The structure diagram of the double screw stirring paddle in the device of the utility model;

[0031] Figure 7 The rotating schematic diagram of the rotor of the double screw stirring paddle;

[0032] Figure 8 The rotor of the double screw stirring paddle and the schematic diagram after superposition;

[0033] Figure 9 The position schematic diagram of the double screw stirring paddle in the device of the utility model.

[0034] Reference signs:

[0035] 1-stirring container; 2-laser particle size instrument; 208-shunt control valve group; 208a-branch switch; 208b-main pipeline shunt; 209-detection cavity connector; 3-stirring paddle; 4-first support; 5-heating element group; 6-sensor; 7-ultrasonic transducer array; 8-temperature control regulator; 9-filter; 10-second support; 11-drain valve; 12-circulating pump; 13-third support; 14-first circulating pipeline; 15-circulating feed inlet; 16-feeding inlet; 17-container bottom; 18-second circulating pipeline; 19-circulating branch pipe; 20-circulating discharge outlet; 21-main shaft; 22-supporting arm; 23-blade; 24-thermocouple. DETAILED DESCRIPTION

[0036] The preferred embodiments of the utility model will be described in detail below with reference to the drawings, wherein the drawings constitute a part of the present application, and are used together with the embodiments of the utility model to explain the principles of the utility model, and are not used to limit the scope of the utility model.

[0037] The present application relates to a kind of nanomaterial dispersion devices, to enhance the dispersion effect and stability of nanomaterial in solvent.The device has multiple functions such as stirring, ultrasonic treatment and temperature control to deal with the common uneven and aggregation problems of nanomaterial in dispersion process.The device includes stirring vessel 1, stirring device, ultrasonic dispersion device, temperature control device, reflux device and laser particle size instrument 2 and other key components.These components work together to improve the efficiency and uniformity of dispersion process.The stirring device is specially designed with screw belt type and double screw type stirring paddle to adapt to the dispersion characteristics of different nanomaterials, and is used with ultrasonic dispersion and temperature control device to optimize the dispersion effect.The introduction of laser particle size instrument 2 realizes the online monitoring of the dispersion state of nanoparticles, ensures the continuity and effectiveness of the dispersion process, and prevents aggregation.

[0038] As Figure 1 shown, a kind of nanomaterial dispersion device of the utility model, it include: stirring vessel 1;Stirring device, ultrasonic dispersion device and temperature control device are set in the stirring vessel 1 interior;Reflux device and laser particle size instrument 2 are set in the stirring vessel 1 exterior。Wherein, the reflux device includes circulating pump 12 and circulating pipeline, the circulating pipeline is connected with the bottom and upper portion of stirring vessel 1 and forms circulating loop;Laser particle size instrument 2 is connected with the circulating pipeline in parallel by detection branch.

[0039] Further, the circulating pipeline includes: first circulating pipeline 14, for connecting the bottom of stirring vessel 1 with the inlet of circulating pump 12;Second circulating pipeline 18, for connecting the outlet of circulating pump 12 with the upper portion of stirring vessel 1;The detection branch is circulating branch pipe 19, which is connected with second circulating pipeline 18 in parallel.The pipe diameter of the circulating branch pipe is 1 / 3 to 1 / 2 of the pipe diameter of second circulating pipeline to adapt to different flow requirements.

[0040] The reflux device also includes shunt control valve group 208, which is set in the middle of second circulating pipeline 18, and includes main pipeline shunt 208b and branch switch 208a, which are respectively set at the inlet of main channel of second circulating pipeline 18 and circulating branch pipe 19.

[0041] During operation, the solution at the bottom of stirring vessel 1 enters circulating pump 12 through first circulating pipeline 14 under the action of circulating pump 12, and then is delivered to circulating feed port 15 at the upper portion of stirring vessel 1 through second circulating pipeline 18, to realize uniform mixing of the solution.

[0042] Shunt control valve group 208 plays a key role in the reflux device, wherein main pipeline shunt 208b is used to adjust the flow distribution in the main channel, and branch switch 208a is used to control the on-off of circulating branch pipe 19, to realize flexible regulation and control of different branch flows.This design allows accurate control of the flow in the circulating pipeline to adapt to different process requirements.

[0043] To ensure the stable operation of the circulating pump 12, a third bracket 13 can be installed directly below it to provide additional support and stability, thereby ensuring the reliability and efficiency of the entire circulation system. Furthermore, as... Figure 1 As shown, the laser particle size analyzer 2 is installed on the circulation branch pipe 19 via the detection chamber connector 209, forming a parallel detection branch with the second circulation pipe 18. The laser particle size analyzer 2 uses laser technology to accurately measure particles in the solution. After the measurement is completed, the solution returns from the outlet of the laser particle size analyzer 2 to the main pipe to continue circulating.

[0044] The laser particle size analyzer 2 (e.g., the commercially available Malvern Mastersizer 3000 laser particle size analyzer) includes a laser emission module, a photoelectric receiving module, and a signal conversion interface. Based on laser diffraction and dynamic light scattering technology, this instrument collects the scattered light signals from the particles through the photoelectric receiving module and converts them into electrical signals. These signals are then transmitted to the analysis device via the signal conversion interface, ultimately calculating the particle size distribution. By monitoring the particle size data in real time, the dispersion of nanoparticles in the reactor can be determined.

[0045] This design enables the device to perform particle size analysis without interrupting the flow in the main pipeline, thereby monitoring the dispersion process, ensuring that the dispersion effect meets the process requirements, and avoiding interference with the production process.

[0046] Furthermore, the stirring device includes a stirring paddle 3, which is a ribbon stirring paddle or a twin-screw stirring paddle.

[0047] Furthermore, when the agitator 3 is a ribbon agitator, the agitator is as follows: Figure 4 As shown, the system includes: a vertically positioned main shaft 21 for supporting the stirring paddle and ensuring its stability during rotation; multiple sets (e.g., 3, 4, or 5 sets) of horizontal support arms 22 equidistantly distributed along the axial direction of the main shaft 21, with the length of these support arms 22 decreasing sequentially from top to bottom to accommodate the fluid characteristics at different heights during the stirring process; the length of the lowest horizontal support arm 22 is 0.6-0.8 times the length of the adjacent horizontal support arm 22 above it to enhance the stirring effect and adapt to different stirring requirements. Each set of support arms 22 is equipped with helical blades 23 that extend continuously along the length of the support arm 22 to form a helical band, enabling the stirring paddle to generate axial thrust during rotation, thereby achieving uniform mixing and dispersion of materials.

[0048] Furthermore, when the impeller is a twin-screw impeller, such as Figure 6 As shown, it includes two rotors rotating in the same direction.

[0049] like Figure 7As shown, the two rotors rotate in the same direction. In the area A where the rotors are close to each other, the helical blades of one rotor move inwardly while the helical blades of the other rotor move outwardly. This relative movement generates significant shear force and cavitation effect, effectively promoting the dispersion of nanoparticles during the stirring process. The cross section of the rotor is elliptical, where the white part represents the rotor shaft, which is circular; the gray part represents the rotor stirring paddle, which is elliptical. The short axis of the ellipse is equal to the diameter of the rotor shaft, while the long axis is 1.5-1.6 times the length of the short axis.

[0050] Figure 8 The schematic diagram of a single rotor and its superposition is shown. The top surface and the bottom surface of each rotor are designed to be perpendicular to each other, which helps to form strong shear action during stirring. The height of the rotor is adjustable, which allows the stirring paddle to be adjusted according to different stirring requirements to achieve the best stirring effect.

[0051] In actual production operations, multiple rotors can be superimposed in the same stirring vessel according to specific process requirements to enhance the stirring effect. For example, Figure 8 As shown, the superimposed rotors are consistent in appearance and rotation direction, which helps to maintain uniformity and improve the efficiency of the stirring process.

[0052] Further, the design of the stirring paddle 3 also takes into account the synergistic effect with the ultrasonic dispersion device, and the bottom of the stirring paddle 3 is intentionally kept a certain distance from the container bottom 17, usually one-fifth to one-quarter of the height of the stirring vessel. This design not only ensures that the stirring paddle 3 can effectively stir the nanomaterials in the stirring vessel 1, but also avoids interference with the ultrasonic device, thereby improving the overall working efficiency and dispersion effect of the dispersion device.

[0053] Further, the ultrasonic dispersion device includes an ultrasonic transducer array 7 arranged at the bottom of the stirring vessel and a filter 9 located at the center of the container bottom 17, which is connected to the liquid outlet. The number of transducers in the ultrasonic transducer array 7 and their arrangement at the bottom of the stirring vessel can be adjusted.

[0054] For example, when the stirring paddle 3 is a ribbon-type stirring paddle (as shown in Figure 2 The ultrasonic transducer array 7 is arranged in a circular shape around the central filter 9.

[0055] In one possible implementation, the ultrasonic transducer array 7 is arranged in a circular shape at the bottom of the container 17, with two circles, each containing 12 ultrasonic transducers.

[0056] For example, when the stirring paddle 3 is a double screw stirring paddle (as shown in Figure 5 The ultrasonic transducer array 7 is arranged in a "8" shape around the central filter 9.

[0057] In one possible implementation, the ultrasonic transducer array 7 is arranged in a "8" shape at the bottom 17 of the container, with two circles, each containing 12 ultrasonic transducers.

[0058] Further, when the stirring paddle is a spiral stirring paddle, the temperature control device is mainly arranged on the side wall of the stirring container, including the heating element group 5 arranged on the inner wall of the stirring container 1 and the sensor 6 arranged above the heating element group 5; the temperature control regulator 8 is arranged outside the stirring container 1.

[0059] The heating element group 5 is composed of multiple independent heating elements, which are arranged in layers by the first support 4 and uniformly distributed along the height direction of the container. The first support 4 is made of high-temperature-resistant stainless steel. A sensor 6 is arranged above each heating element, and the installation position of the sensor 6 is 10-15 mm away from the surface of the heating element.

[0060] Specifically, the heating element adopts a PTC ceramic heater or a silicone rubber heating belt, and the surface is covered with a Teflon coating. The sensor 6 adopts a liquid level and temperature combined sensor (such as the Liquiphant FTL51 series of E+H company or the 3100 series of GEMS company) or a combination of independent liquid level sensor and temperature sensor (such as the LFP series capacitive sensor of SICK company for the liquid level sensor and the PT100 platinum resistance sensor of OMEGA company for the temperature sensor). The temperature control regulator 8 is electrically connected with the heating element group 5 and the sensor 6.

[0061] In one implementation, the heating elements are distributed in a circular ring shape (as shown in Figure 3 The heating element group 5 is composed of four heating elements, and the distance between adjacent heating elements is 1 / 4-1 / 5 of the height of the container. The first support 4 fixes the heating elements on the inner wall of the container, and the surface of the heating elements maintains a distance of 5-10 mm from the inner wall of the container.

[0062] Further, when the stirring paddle is a double screw stirring paddle, the temperature control device is no longer arranged on the side wall of the stirring container, but on the bottom of the stirring container, because the rotor cooperates with the gap of the side wall of the stirring container.

[0063] As shown in Figure 5 The temperature control device includes the heating element group 5 and the thermocouple 24 arranged on the bottom 17 of the container, and the temperature control regulator 8 arranged outside the stirring container 1. This is because when the stirring paddle is a double screw stirring paddle, the layout of the heating element group 5 and the thermocouple 24 can be adjusted according to the actual design requirements and the geometric structure of the stirring container, and is not limited to the position shown in the figure. For example, the heating element group 5 can be designed as a ring-shaped heating area surrounding the central area of the bottom of the stirring container, or uniformly distributed on the surface of the bottom; the position of the thermocouple 24 can be placed in the center of the heating element group 5 or placed at the edge.

[0064] Further, the nanomaterial dispersion device further comprises the following structure:

[0065] The feeding port 16 arranged above the top of the stirring container 1 allows the addition of solvents and solutes into the stirring container 1 while maintaining the continuity of the dispersion process, thereby helping to maintain the appropriate concentration and volume required in the production process.

[0066] The filter 9 (as shown in Figure 1 and Figure 2 ) arranged at the center of the bottom 17 of the container is connected to the liquid outlet and is specially used for filtering nanomaterials. The filter 9 is made of special porous materials, and the pore size is designed accurately to ensure that only single nanoparticles can pass through, effectively trapping larger agglomerates, thereby significantly improving the overall quality of the solution and ensuring the uniform dispersion of the nanoparticles. The second support 10 arranged at a reasonable position below the stirring container 1 facilitates the installation and removal of the filter 9 and the smooth discharge of the liquid, further improving the operational convenience and maintenance efficiency of the device.

[0067] In the production operation, the premix is added to the stirring container 1 through the feeding port 16, and then the stirring device is started. The stirring paddle 3 operates at a predetermined speed, effectively promoting the uniform dispersion of nanomaterials in the solvent. The sensor 6 in the temperature control device monitors the temperature and liquid level of the solution, and when the liquid level is below the safe range, the heating element group 5 automatically stops working to avoid the risk of dry burning.

[0068] The ultrasonic transducer array 7 starts to work after the liquid level reaches the working height, and further promotes the dispersion of nanoparticles using ultrasonic waves. The circulating pump 12 of the reflux device transports the solution at the bottom to the upper part of the container, realizing the circulating mixing of the solution, and part of the solution enters the laser particle size analyzer 2 through the shunt pipeline for particle size detection.

[0069] The design of the device fully considers the monitoring of the dispersion effect of nanomaterials in the production process. Through the detection of the particle size by the laser particle size analyzer 2, the dispersion state of the nanoparticles can be detected online. When the detected particle size distribution shows that there are many agglomerates, the ultrasonic transducer array 7 continues to work to improve the dispersion effect. Through the cooperative work of each component, the system ensures the uniform dispersion of nanomaterials in the solvent.

[0070] The nanomaterial dispersion device of the utility model is designed for the dispersion of nanoparticles and helps to maintain the stability of the solution. By combining the application of the reflux device and the laser particle size analyzer, the dispersion state of the nanoparticles can be effectively monitored, thereby helping to ensure the uniformity of the solution. This design provides an efficient and reliable method for the dispersion and stability of nanomaterials.

[0071] According to the above description of the present specification, those skilled in the art can also understand that the terms used, such as "upper", "lower", "front", "rear", "left", "right", "width", "horizontal", "top", "bottom", "inner", "outer" and the like indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings of the present specification, which are only for the purpose of facilitating the description of the scheme of the present application and simplifying the description, and are not explicitly or implicitly indicating or suggesting that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation, therefore the above orientation or positional relationship terms cannot be understood or interpreted as a limitation on the scheme of the present application.

[0072] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A nanomaterial dispersion device, comprising: The application relates to a nanomaterial dispersion device. The device comprises: a stirring container (1); a stirring device, an ultrasonic dispersion device and a temperature control device arranged inside the stirring container (1); a reflux device and a laser particle size analyzer (2) arranged outside the stirring container (1); the reflux device comprises a circulating pump (12) and a circulating pipeline, and the circulating pipeline is connected with the bottom and the upper part of the stirring container (1) to form a circulating loop; 2. The nanomaterial dispersion device of claim 1, wherein, the laser particle size analyzer (2) is connected with the circulating pipeline through a detection branch. The circulating pipeline comprises: a first circulating pipeline (14) connected with the bottom (17) of the stirring container and the inlet of the circulating pump (12); a second circulating pipeline (18) connected with the outlet of the circulating pump (12) and the upper part of the stirring container (1); 3. The nanomaterial dispersion device of claim 2, wherein, the detection branch is a circulating branch pipe (19) connected with the second circulating pipeline (18) in parallel.

4. The nanomaterial dispersion device of claim 2, wherein, The diameter of the circulating branch pipe (19) is 1 / 3-1 / 2 of the diameter of the second circulating pipeline (18).

5. The nanomaterial dispersion device of claim 1, wherein, The laser particle size analyzer (2) is installed on the circulating branch pipe (19) through a detection cavity connector (209).

6. The nanomaterial dispersion device of claim 5, wherein, The stirring device comprises a stirring paddle (3), and the stirring paddle (3) is a screw ribbon stirring paddle or a double screw stirring paddle. When the stirring paddle (3) is a screw ribbon stirring paddle, the stirring paddle (3) comprises: a vertical main shaft (21); a plurality of horizontal support arms (22) distributed along the main shaft (21) at equal intervals, and the lengths of the horizontal support arms (22) decrease from top to bottom; 7. The nanomaterial dispersion device of claim 5, wherein, the length of the lowermost horizontal support arm (22) is 0.6-0.8 times the length of the adjacent horizontal support arm (22) above. When the stirring paddle (3) is a double screw stirring paddle, the stirring paddle (3) comprises:

8. The nanomaterial dispersion device of claim 1, wherein, two rotors rotating in the same direction, and the cross section of the rotor is an ellipse, the length of the short axis of the ellipse is the same as the diameter of the rotor rotation shaft, and the length of the long axis is 1.5-1.6 times the length of the short axis. The ultrasonic dispersion device comprises: an ultrasonic transducer array (7) arranged at the bottom (17) of the stirring container and a filter (9) arranged at the center of the bottom (17) of the container, and the filter (9) is connected with a liquid discharge port.

9. The nanomaterial dispersion device according to claim 8, wherein when the stirring paddle (3) is a screw ribbon stirring paddle, the ultrasonic transducer array (7) is circularly distributed around the filter (9) in the middle; 10. The nanomaterial dispersion device of claim 1, wherein, when the stirring paddle (3) is a double screw stirring paddle, the ultrasonic transducer array (7) is in the shape of "8" and is distributed around the filter (9) in the middle. The temperature control device comprises: when the stirring paddle (3) is a screw ribbon stirring paddle, the temperature control device comprises a heating element group (5) arranged on the inner wall of the stirring container (1) and a sensor (6) arranged above the heating element group (5); when the stirring paddle (3) is a double screw stirring paddle, the temperature control device comprises a heating element group (5) arranged at the bottom (17) of the container and a thermocouple (24).

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