Nanomaterial manufacturing equipment based on hot injection method

Abstract

This invention discloses a nanomaterial manufacturing device based on a hot-injection method, comprising: a reaction flask; a lifting mechanism disposed in the outer space at the bottom of the reaction flask; a heating mechanism disposed at the movable end of the lifting mechanism, which, when the lifting mechanism moves up or down, moves the heating mechanism closer to or away from the reaction flask, heating the reaction flask when it approaches; a stirring mechanism disposed at the movable end of the lifting mechanism, which, after the lifting mechanism moves the stirring mechanism closer to the reaction flask, stirs the reactants in the reaction flask; and a heat dissipation mechanism disposed close to the reaction flask, which dissipates heat from the reaction flask after the heating mechanism moves away. This invention, by incorporating a heat dissipation mechanism to promptly dissipate heat from the reaction flask, effectively prevents secondary growth or agglomeration of nanomaterials due to insufficient cooling, thereby improving the quality of the prepared nanomaterials.

Description

Technical Field

[0001] This utility model relates to the field of nanomaterial preparation technology, and in particular discloses a nanomaterial manufacturing device based on the hot injection method. Background Technology

[0002] Nanomaterials, due to their unique physicochemical properties, have broad application prospects in fields such as optoelectronics, catalysis, and biomedicine. The hot-injection method, as one of the important methods for preparing high-quality nanomaterials, is widely used in the preparation of nanomaterials such as quantum dots and metal nanoparticles due to its advantages of simple operation and strong controllability. This method typically requires rapidly injecting a precursor solution into the reaction solution under high temperature conditions. The instantaneous temperature change triggers the nucleation process, followed by growth into nanoparticles at a specific temperature.

[0003] Currently, various types of devices exist for preparing nanomaterials using the hot-injection method. However, existing hot-injection nanomaterial preparation systems still have some technical problems: the lack of an effective rapid cooling mechanism after the reaction is completed results in nanomaterials remaining in a high-temperature environment for too long, which can easily lead to secondary growth or agglomeration of the product, affecting the quality of the final product and making it difficult to meet the needs of large-scale preparation of high-quality nanomaterials. Utility Model Content

[0004] This invention provides a nanomaterial manufacturing device based on the hot injection method, which aims to solve the problem that existing nanomaterial manufacturing devices based on the hot injection method cannot cool down quickly, resulting in poor product quality.

[0005] This utility model relates to a nanomaterial manufacturing device based on the hot injection method, comprising: a reaction flask; a lifting mechanism disposed in the outer space at the bottom of the reaction flask; a heating mechanism disposed at the movable end of the lifting mechanism, wherein the lifting mechanism moves the heating mechanism closer to or away from the reaction flask when it moves up or down, and the heating mechanism heats the reaction flask when it moves closer to the reaction flask; a stirring mechanism disposed at the movable end of the lifting mechanism, wherein the stirring mechanism stirs the reactants in the reaction flask after the lifting mechanism moves closer to the reaction flask; and a heat dissipation mechanism disposed close to the reaction flask, wherein the heat dissipation mechanism dissipates heat from the reaction flask after the heating mechanism moves away from the reaction flask.

[0006] As a further improvement of this utility model, the heating mechanism includes a heating sleeve, which is disposed at the movable end of the lifting mechanism. The top of the heating sleeve is provided with a hemispherical groove that matches the reaction flask. After the lifting mechanism moves the heating sleeve closer to the reaction flask, the hemispherical area near the bottom of the reaction flask is accommodated in the hemispherical groove.

[0007] As a further improvement of this utility model, it also includes a controller, which is electrically connected to the lifting mechanism, the heating mechanism, the stirring mechanism, and the heat dissipation mechanism respectively; after the controller controls the lifting mechanism to move the heating mechanism and the stirring mechanism closer to the reaction flask, it controls the heating mechanism and the stirring mechanism to start working; or, after the controller controls the lifting mechanism to move the heating mechanism and the stirring mechanism away from the reaction flask, it controls the heating mechanism and the stirring mechanism to stop working, and at the same time controls the heat dissipation mechanism to start working.

[0008] As a further improvement of this utility model, the stirring mechanism includes a magnetic stir bar, a first motor, a mounting plate, and at least two magnetic blocks. The magnetic stir bar is disposed inside the reaction flask, the first motor is disposed at the movable end of the lifting mechanism, the mounting plate is disposed at the output end of the first motor, and at least two magnetic blocks are disposed on the mounting plate in a centrally symmetrical relationship. After the lifting mechanism drives the stirring mechanism to approach the reaction flask, the controller controls the first motor to start working. The first motor drives the mounting plate to rotate, and the mounting plate drives at least two magnetic blocks to rotate around the center of symmetry to generate a rotating magnetic field.

[0009] As a further improvement of this utility model, the lifting mechanism includes a support assembly, a sliding assembly, a second motor, a screw, and a limiting member. The second motor is mounted on the support assembly, and a slide rod assembly is mounted on the support assembly. The sliding assembly is slidably mounted on the slide rod assembly. The screw is vertically mounted on the support assembly. The limiting member has a screw hole that matches the screw. The limiting member is sleeved on the screw and connected to the sliding assembly. The heating mechanism and the stirring mechanism are mounted on the sliding assembly. When the second motor is working, it drives the screw to rotate. When the screw rotates, the limiting member drives the sliding assembly to rise or fall.

[0010] As a further improvement of this utility model, the heat dissipation mechanism includes a fan, with the fan's air outlet facing the reaction flask.

[0011] As a further improvement of this utility model, it also includes a temperature sensor, which is electrically connected to the controller. The temperature sensor acquires the temperature inside the reaction flask and transmits it to the controller. The controller controls the lifting mechanism, heating mechanism, and heat dissipation mechanism to work according to the temperature.

[0012] As a further improvement of this utility model, it also includes a power supply module, which is electrically connected to the controller, lifting mechanism, heating mechanism, stirring mechanism and heat dissipation mechanism respectively.

[0013] As a further improvement of this utility model, it also includes a wireless connection component, which is electrically connected to the controller. The wireless connection component receives control commands input from an external terminal and transmits them to the controller. The controller controls the lifting mechanism, heating mechanism, stirring mechanism, and heat dissipation mechanism to work according to the control commands.

[0014] As a further improvement of this utility model, it also includes a box body, a support is provided on the top of the box body, the reaction flask is placed on the support, the lifting mechanism, the heating mechanism and the stirring mechanism are all located inside the box body, and the heat dissipation mechanism is located on the top of the support.

[0015] The beneficial effects achieved by this utility model are as follows:

[0016] This invention provides a nanomaterial manufacturing device based on the hot injection method. Through the coordinated operation of an automatic lifting mechanism, a heating mechanism, and a heat dissipation mechanism, the device achieves efficient heating of the reaction flask by bringing the heating mechanism closer to it via the lifting mechanism. After heating, the heating mechanism is promptly moved away from the reaction flask to prevent residual heat from continuing to heat it. Furthermore, after heating, the heat dissipation mechanism rapidly cools the reaction flask, effectively preventing secondary growth or agglomeration of nanomaterials and improving product quality. Moreover, the device uses a fan to control the consistent cooling rate across different seasons (and ambient temperatures), enhancing the reproducibility of nanomaterial preparation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the nanomaterial manufacturing equipment based on the hot injection method of this utility model;

[0018] Figure 2 This is an exploded structural diagram of an embodiment of the nanomaterial manufacturing equipment based on the hot injection method of this utility model;

[0019] Figure 3 This is a schematic diagram of the electrical connections in one embodiment of the nanomaterial manufacturing equipment based on the hot injection method of this utility model.

[0020] Figure 4 This is a schematic diagram of the stirring mechanism of an embodiment of the nanomaterial manufacturing equipment based on the hot injection method of this utility model;

[0021] Figure 5 This is a schematic diagram of the lifting mechanism of an embodiment of the nanomaterial manufacturing equipment based on the hot injection method of this utility model;

[0022] Figure 6 This is a schematic diagram of the limiting component of an embodiment of the nanomaterial manufacturing equipment based on the hot injection method of this utility model. Detailed Implementation

[0023] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0024] Figure 1 and Figure 2A schematic diagram of one embodiment of the nanomaterial manufacturing equipment based on the hot injection method of this utility model is shown. Figure 1 and Figure 2 As shown, the nanomaterial manufacturing equipment based on the hot injection method includes: a reaction flask 1, a lifting mechanism 2, a heating mechanism 3, a stirring mechanism 4, and a heat dissipation mechanism 5.

[0025] The reaction flask 1 is used to hold the reactants for preparing nanomaterials. Specifically, the reaction flask 1 can be a high-temperature resistant glass or metal container with good thermal conductivity, capable of withstanding the high-temperature environment during the nanomaterial preparation process. The reaction flask 1 has an opening at the top for easy addition of reactants. A lifting mechanism 2 is located in the outer space at the bottom of the reaction flask 1. A heating mechanism 3 is located at the movable end of the lifting mechanism 2. When the lifting mechanism 2 moves up or down, it moves the heating mechanism 3 closer to or away from the reaction flask 1. When the heating mechanism 3 is close to the reaction flask 1, it heats the reaction flask 1. A stirring mechanism 4 is located at the movable end of the lifting mechanism 2. After the lifting mechanism 2 moves the stirring mechanism 4 closer to the reaction flask 1, the stirring mechanism 4 stirs the reactants in the reaction flask 1. A heat dissipation mechanism 5 is located close to the reaction flask 1. After the heating mechanism 3 moves away from the reaction flask 1, the heat dissipation mechanism 5 cools the reaction flask 1.

[0026] Specifically, in the preparation of nanomaterials, firstly, the lifting mechanism 2 drives the heating mechanism 3 and the stirring mechanism 4 to rise and approach the reaction flask 1; then, the heating mechanism 3 starts to heat the reaction flask 1, while the stirring mechanism 4 stirs the reactants in the reaction flask 1 evenly. After the reaction is completed, the lifting mechanism 2 operates, driving the heating mechanism 3 and the stirring mechanism 4 to descend. The heating mechanism 3 moves away from the reaction flask 1, while the stirring mechanism 4 stops stirring the reactants in the reaction flask 1. After the reaction is completed, high-quality nanomaterials are obtained.

[0027] The nanomaterial manufacturing equipment based on the hot injection method of this invention works in coordination with the automatic lifting mechanism 2, the heating mechanism 3, and the heat dissipation mechanism 5. On the one hand, the lifting mechanism 2 drives the heating mechanism 3 closer to the reaction bottle 1 to achieve efficient heating of the reaction bottle 1. After heating is completed, the heating mechanism 3 is moved away from the reaction bottle 1 in a timely manner to prevent the residual heat of the heating mechanism 3 from continuing to heat the reaction bottle 1. In addition, after heating is completed, the heat dissipation mechanism 5 rapidly cools down the reaction bottle 1 to effectively prevent secondary growth or agglomeration of nanomaterials in the reaction bottle 1 and improve product quality. Moreover, the cooling rate is controlled by the fan 51 to ensure consistency in different seasons (different ambient temperatures), thereby improving the reproducibility of nanomaterial preparation.

[0028] Furthermore, such as Figure 1 and Figure 2As shown, the heating mechanism 3 includes a heating sleeve 31, which is located at the movable end of the lifting mechanism 2. The top of the heating sleeve 31 is provided with a hemispherical groove 311 that matches the reaction bottle 1. After the lifting mechanism 2 moves the heating sleeve 31 closer to the reaction bottle 1, the hemispherical area near the bottom of the reaction bottle 1 is accommodated in the hemispherical groove 311.

[0029] Specifically, by setting a hemispherical groove 311 on the heating sleeve 31, when the heating sleeve 31 is close to the reaction bottle 1, the lower half of the reaction bottle 1 is just accommodated in the hemispherical groove 311. When the heating sleeve 31 starts to heat, the reactants in the reaction sphere can be heated quickly and uniformly, so that the reactants in the reaction bottle 1 can be heated to the required reaction temperature quickly.

[0030] Furthermore, such as Figure 2 and Figure 3 As shown, the nanomaterial manufacturing equipment based on the hot injection method also includes a controller 6, which is electrically connected to the lifting mechanism 2, the heating mechanism 3, the stirring mechanism 4, and the heat dissipation mechanism 5. Specifically, the controller 6 controls the lifting mechanism 2 to move the heating mechanism 3 and the stirring mechanism 4 closer to the reaction flask 1, and then controls the heating mechanism 3 and the stirring mechanism 4 to start working; or, the controller 6 controls the lifting mechanism 2 to move the heating mechanism 3 and the stirring mechanism 4 away from the reaction flask 1, and then controls the heating mechanism 3 and the stirring mechanism 4 to stop working, while simultaneously controlling the heat dissipation mechanism 5 to start working.

[0031] This embodiment uses a controller 6 to achieve coordinated control of multiple mechanisms such as heating, stirring, lifting, and cooling, thereby improving batch repeatability and reducing human-introduced errors.

[0032] Furthermore, such as Figure 4 As shown, the stirring mechanism 4 includes a magnetic stir bar (not shown), a first motor 41, a mounting plate 42, and at least two magnetic blocks 43. The magnetic stir bar is placed inside the reaction flask 1. The first motor 41 is located at the movable end of the lifting mechanism 2, and the mounting plate 42 is located at the output end of the first motor 41. The at least two magnetic blocks 43 are arranged symmetrically on the mounting plate. After the lifting mechanism 2 moves the stirring mechanism 4 close to the reaction flask 1, the controller 6 controls the first motor 41 to start working. The first motor 41 drives the mounting plate to rotate, and the mounting plate drives the at least two magnetic blocks 43 to rotate around the center of symmetry to generate a rotating magnetic field. A magnetic stir bar is placed inside the reaction sphere. Under the action of the rotating magnetic field, the magnetic stir bar rotates inside the reaction sphere, stirring the reactants in the reaction sphere to ensure thorough mixing and improve reaction efficiency.

[0033] Furthermore, such as Figure 5 and Figure 6As shown, the lifting mechanism 2 includes a support assembly 21, a sliding assembly 22, a second motor 23, a screw 24, and a limiting member 25. The second motor 23 is mounted on the support assembly 21, and a slide rod assembly 211 is mounted on the support assembly 21. The sliding assembly 22 is slidably mounted on the slide rod assembly 211. The screw 24 is vertically mounted on the support assembly 21. The limiting member 25 has a screw hole 251 that matches the screw 24. The limiting member 25 is sleeved on the screw 24 and connected to the sliding assembly 22. The heating mechanism 3 and the stirring mechanism 4 are mounted on the sliding assembly 22. When the second motor 23 is working, it drives the screw 24 to rotate. When the screw 24 rotates, the limiting member 25 drives the sliding assembly 22 to rise or fall, thereby realizing the lifting and lowering movement of the heating mechanism 3 and the stirring mechanism 4.

[0034] Furthermore, such as Figure 1 and Figure 2 As shown, the heat dissipation mechanism 5 includes a fan 51, and the air outlet of the fan 51 is directly facing the reaction flask 1.

[0035] Specifically, after the heating mechanism 3 moves away from the reaction ball, the heat dissipation mechanism 5 performs heat dissipation operation on the reaction ball, so that the reactants inside the reaction ball are rapidly cooled, the growth process of the nanomaterial is controlled, and the desired nanomaterial is obtained.

[0036] Furthermore, such as Figure 3 As shown, the nanomaterial manufacturing equipment based on the hot injection method also includes a temperature sensor 7, which is electrically connected to the controller 6. The temperature sensor 7 acquires the temperature inside the reaction flask 1 and transmits it to the controller 6. The controller 6 controls the lifting mechanism 2, the heating mechanism 3, and the heat dissipation mechanism 5 to work according to the temperature.

[0037] Specifically, when the temperature sensor 7 detects that the temperature inside the reaction ball has reached the preset value, the controller 6 can control the heating mechanism 3 to stop heating, or control the lifting mechanism 2 to move the heating mechanism 3 away from the reaction ball and start the heat dissipation mechanism 5 to dissipate heat, thereby achieving precise control of the reaction temperature.

[0038] Furthermore, such as Figure 3 As shown, the nanomaterial manufacturing equipment based on the hot injection method also includes a power module 8, which is electrically connected to the controller 6, the lifting mechanism 2, the heating mechanism 3, the stirring mechanism 4, and the heat dissipation mechanism 5 to provide power to each component.

[0039] Furthermore, such as Figure 3 As shown, the nanomaterial manufacturing equipment based on the hot injection method also includes a wireless connection component 9, which is electrically connected to the controller 6. The wireless connection component 9 receives control commands input from an external terminal and transmits them to the controller 6. The controller 6 controls the lifting mechanism 2, the heating mechanism 3, the stirring mechanism 4, and the heat dissipation mechanism 5 to work according to the control commands.

[0040] Specifically, through the wireless connection component 8, operators can remotely control the operating status of the equipment, achieving automated operation and improving work efficiency. Preferably, the wireless connection component 8 can be any one of a Bluetooth module, a WIFI module, a cellular network module, etc.

[0041] Furthermore, such as Figure 1 and Figure 2 As shown, the nanomaterial manufacturing equipment based on the hot injection method also includes a housing 10, with a support 100 mounted on top of the housing 10. A reaction flask 1 is mounted on the support 100. A lifting mechanism 2, a heating mechanism 3, and a stirring mechanism 4 are all located inside the housing 10, and a heat dissipation mechanism 5 is located on top of the support 100. Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from its spirit and scope. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. A nanomaterial manufacturing apparatus based on a thermal injection method, characterized by, It includes: reaction flask; A lifting mechanism is located in the outer space at the bottom of the reaction flask; A heating mechanism is provided at the movable end of the lifting mechanism. When the lifting mechanism moves up or down, it causes the heating mechanism to move closer to or away from the reaction flask. When the heating mechanism moves closer to the reaction flask, it heats the reaction flask. A stirring mechanism is located at the movable end of the lifting mechanism. After the lifting mechanism moves the stirring mechanism closer to the reaction flask, the stirring mechanism stirs the reactants in the reaction flask. A heat dissipation mechanism is provided, which is located close to the reaction flask. The heat dissipation mechanism performs heat dissipation operation on the reaction flask after the heating mechanism moves away from the reaction flask.

2. The nanomaterial manufacturing equipment based on the hot injection method according to claim 1, characterized in that, The heating mechanism includes a heating sleeve, which is disposed at the movable end of the lifting mechanism. The top of the heating sleeve is provided with a hemispherical groove that matches the reaction flask. After the lifting mechanism moves the heating sleeve closer to the reaction flask, the hemispherical area near the bottom of the reaction flask is accommodated in the hemispherical groove.

3. The nanomaterial manufacturing equipment based on the hot injection method according to claim 1, characterized in that, It also includes a controller, which is electrically connected to the lifting mechanism, the heating mechanism, the stirring mechanism, and the heat dissipation mechanism, respectively. After the controller controls the lifting mechanism to move the heating mechanism and the stirring mechanism closer to the reaction flask, it then controls the heating mechanism and the stirring mechanism to start working. Or, After the controller controls the lifting mechanism to move the heating mechanism and the stirring mechanism away from the reaction flask, it controls the heating mechanism and the stirring mechanism to stop working, and at the same time controls the heat dissipation mechanism to start working.

4. The nanomaterial manufacturing equipment based on the hot injection method according to claim 3, characterized in that, The stirring mechanism includes a magnetic stir bar, a first motor, a mounting plate, and at least two magnetic blocks. The magnetic stir bar is disposed inside the reaction flask. The first motor is disposed at the movable end of the lifting mechanism. The mounting plate is disposed at the output end of the first motor. The at least two magnetic blocks are centrally symmetrically disposed on the mounting plate. After the lifting mechanism moves the stirring mechanism closer to the reaction flask, the controller controls the first motor to start working. The first motor drives the mounting plate to rotate, and the mounting plate drives the at least two magnetic blocks to rotate around the center of symmetry to generate a rotating magnetic field.

5. The nanomaterial manufacturing equipment based on the hot injection method according to claim 1 or 3, characterized in that, The lifting mechanism includes a support assembly, a sliding assembly, a second motor, a screw, and a limiting member. The second motor is mounted on the support assembly, which has a set of sliding rods. The sliding assembly is slidably mounted on the set of sliding rods. The screw is vertically mounted on the support assembly. The limiting member has a screw hole that matches the screw and is fitted onto the screw. The limiting member is connected to the sliding assembly. The heating mechanism and the stirring mechanism are mounted on the sliding assembly. When the second motor operates, it drives the screw to rotate. When the screw rotates, the limiting member drives the sliding assembly to rise or fall.

6. The nanomaterial manufacturing equipment based on the hot injection method according to claim 1 or 3, characterized in that, The heat dissipation mechanism includes a fan, and the air outlet of the fan is directed towards the reaction flask.

7. The nanomaterial manufacturing equipment based on the hot injection method according to claim 3, characterized in that, It also includes a temperature sensor, which is electrically connected to the controller. The temperature sensor acquires the temperature inside the reaction flask and transmits it to the controller. The controller controls the lifting mechanism, the heating mechanism, and the heat dissipation mechanism to operate based on the temperature.

8. The nanomaterial manufacturing equipment based on the hot injection method according to claim 3, characterized in that, It also includes a power module, which is electrically connected to the controller, the lifting mechanism, the heating mechanism, the stirring mechanism, and the heat dissipation mechanism.

9. The nanomaterial manufacturing equipment based on the hot injection method according to claim 3, characterized in that, It also includes a wireless connection component, which is electrically connected to the controller. The wireless connection component receives control commands input from an external terminal and transmits them to the controller. The controller controls the lifting mechanism, the heating mechanism, the stirring mechanism, and the heat dissipation mechanism to operate according to the control commands.

10. The nanomaterial manufacturing equipment based on the hot injection method according to claim 1, characterized in that, It also includes a housing, a support is provided on the top of the housing, the reaction flask is placed on the support, the lifting mechanism, the heating mechanism and the stirring mechanism are all located inside the housing, and the heat dissipation mechanism is located on the top of the support.

Images