Continuous coating and drying device for graphene dispersion liquid

Abstract

The utility model belongs to the technical field of dip-coating mechanisms, and particularly relates to a graphene dispersion liquid continuous coating and drying device which comprises a supporting frame. The dip-coating mechanism is installed on the surface of the supporting frame and used for conducting dip-coating operation on the yarn; the drying assembly is installed at the position adjacent to the dip-coating mechanism and has the function of dewatering and drying the yarn subjected to dip-coating; wherein the drying assembly comprises a drying unit and a purifying unit, the drying unit is used for executing hot air drying operation, and the purifying unit is used for treating gas emissions generated in the drying process. The device has the beneficial effects that volatile gas and peculiar smell molecules generated in the drying process can be treated through the purification unit, the content of harmful components in the gas is reduced, the influence of direct emission on the air quality is avoided, the environmental friendliness of a production place is effectively improved, the risk that workers inhale pollutants is reduced, and the production efficiency is improved. Meanwhile, physiological discomfort caused by peculiar smell stimulation is reduced, and a safer working environment is provided for operators.

Description

Technical Field

[0001] This application belongs to the technical field of dip coating mechanism, and particularly relates to a continuous coating and drying device for graphene dispersion. Background Technology

[0002] Graphene dispersion is a material with good stability and conductivity. Graphene is added to a dispersant to obtain a graphene dispersion. Yarn is then immersed in the graphene dispersion, which allows the yarn surface to be coated with graphene material. In this way, the yarn can obtain the excellent properties of graphene, such as antibacterial properties, electrical conductivity, and high thermal conductivity.

[0003] Existing impregnation equipment involves placing the yarn in an oven for drying after impregnation. However, drying generates gases that pollute the air and produce unpleasant odors, which can affect the health of workers and therefore needs to be improved. Utility Model Content

[0004] The purpose of this application is to provide a continuous coating and drying device for graphene dispersion, which can solve the above-mentioned problems.

[0005] The purpose of this application is to provide a continuous coating and drying apparatus for graphene dispersions, comprising:

[0006] Supporting framework;

[0007] The dip coating mechanism, mounted on the surface of the support frame, is used to perform dip coating operations on yarn;

[0008] The drying component, installed adjacent to the dip coating mechanism, has the function of dehydrating and drying the yarn after dip coating;

[0009] The drying assembly includes a drying unit and a purification unit. The drying unit is used to perform hot air drying operations, and the purification unit is used to treat the gaseous emissions generated during the drying process.

[0010] The purification unit installed in the drying components can treat the volatile gases and odor molecules generated during the drying process, reduce the content of harmful components in the gases, avoid direct emissions that affect air quality, effectively improve the environmental friendliness of the production site, reduce the risk of workers inhaling pollutants, and reduce physiological discomfort caused by odor irritation, providing a safer working environment for operators.

[0011] Meanwhile, by integrating the drying unit and the purification unit into the drying component, the waste gas treatment process can be completed simultaneously with the drying of the yarn after impregnation and coating, avoiding the efficiency loss caused by the separate operation of drying and waste gas treatment in traditional processes, and ensuring the continuity and stability of graphene dispersion coating operations.

[0012] Furthermore, the drying unit includes:

[0013] The drying chamber has inlet and outlet channels;

[0014] A hot air chamber is located inside the drying chamber. The hot air chamber has an airflow inlet at the front and is connected to the interior of the drying chamber at the rear.

[0015] The heating element is located inside the hot air chamber;

[0016] An air supply device is integrated at the airflow inlet.

[0017] The inlet and outlet channels in the drying chamber form a yarn transport path, allowing the coated yarn to maintain its forward motion during the drying process. This avoids process interruptions caused by traditional batch drying and improves the continuity of the graphene dispersion coating production line. Simultaneously, the hot air chamber employs a front-inlet and rear-outlet design, which, combined with the heating function of the heating wire, creates a unidirectional hot airflow field along the yarn's direction of travel. This accelerates solvent evaporation from the yarn surface through thermal convection and prevents graphene coating peeling caused by turbulence.

[0018] In addition, an air supply device is integrated at the airflow inlet, which increases the airflow velocity within the hot air chamber through forced airflow, rapidly converting the heat generated by the heating wires into directional high-speed hot air, thus shortening the yarn drying cycle. The initial air supply device here is an electrically powered fan. Heating is accomplished by multiple heating wires, which generate heat when energized, thereby heating the air within the hot air chamber. These heating wires are connected to an external power source to provide the necessary electricity for heating.

[0019] Furthermore: the purification unit includes:

[0020] The recovery compartment is connected to the exhaust port of the drying chamber;

[0021] The suction device is located at the exhaust port;

[0022] A multi-stage purification structure is installed inside the recovery chamber to purify the exhaust gas.

[0023] The multi-stage purification device here includes a metal frame mounted outside the exhaust port, and a multi-layer filter screen installed on the metal frame. The multi-layer filter screen is composed of cotton fiber, graphene HEPA, and activated carbon honeycomb, which can purify exhaust gas. The cotton fiber layer initially filters large particles of paint mist and fiber debris, the graphene modified HEPA filter intercepts submicron particles, and the activated carbon honeycomb layer deeply adsorbs volatile organic compounds and odor molecules. The metal frame is made of stainless steel and is detachable, so it can be replaced regularly.

[0024] Meanwhile, the recovery chamber is connected to the exhaust port of the drying chamber to form a closed gas channel, allowing volatile gases and odor molecules generated during the drying process to enter the recovery chamber through the exhaust port, thus preventing pollutants from spreading to the production environment.

[0025] Furthermore, it also includes a gas circulation pipeline that connects the recovery chamber and the hot air chamber to form a closed loop.

[0026] By connecting the gas circulation pipeline to the recovery chamber and communicating with the hot air chamber, some of the gas in the recovery chamber can be returned to the hot air chamber. The gas here is purified gas, thereby realizing the recycling of gas and improving the energy efficiency of the entire system. In order to further ensure the treatment effect of the exhaust gas, a multi-stage purification structure can be installed between the return to the hot air chamber to purify the exhaust gas again.

[0027] Furthermore, the dip-coating mechanism includes:

[0028] The solution tank has multiple sets of guide wheels built in, and a liquid replenishment hole is opened on the solution tank;

[0029] Yarn inlet and outlet holes are respectively opened on both sides of the solution tank.

[0030] The solution tank integrates a replenishment hole and a drain outlet. The replenishment hole allows for the addition of fresh solution, preventing poor yarn contact due to a drop in liquid level. The drain outlet quickly empties the waste liquid, used to remove liquid after impregnation. Multiple guide wheels installed inside the solution tank form a transport track, extending the contact time between the yarn and the dispersion liquid and ensuring sufficient contact. Simultaneously, inlets and outlets are located on both sides of the solution tank. The inlet introduces the yarn to be impregnated into the tank, while the outlet removes the impregnated yarn for subsequent drying. Through the synergistic effect of the solution tank, guide wheels, inlets, and outlets, uniform impregnation and efficient transport of the yarn are achieved, providing a solid foundation for subsequent drying.

[0031] Furthermore, the dip coating mechanism is also equipped with a tension control component, which includes a linear driver mounted on the top of the solution tank, and an adjustable guide wheel mounted at the end of the driver to contact the yarn.

[0032] The adjustment structure achieves precise control of the yarn impregnation process through the synergistic action of a linear actuator and an adjustable guide wheel. The linear actuator is mounted at the top of the solution tank, and its output shaft is connected to the adjustable guide wheel. As the actuator extends or retracts, the adjustable guide wheel changes its relative position to the yarn. Depending on the yarn specifications and impregnation requirements, the contact area can be flexibly controlled by adjusting the actuator stroke: to increase the contact area between the yarn and the graphene dispersion, the actuator is extended to bring the guide wheel closer to the yarn; to reduce the contact area, the actuator is shortened to maintain a distance between the guide wheel and the yarn. By precisely controlling the position and height of the guide wheel, the impregnation depth of the yarn can be accurately adjusted, thereby achieving fine-tuning of the impregnation process.

[0033] The beneficial effects of this application are:

[0034] 1. The purification unit can treat the volatile gases and odor molecules generated during the drying process, reduce the content of harmful components in the gas, avoid direct emission that affects air quality, effectively improve the environmental friendliness of the production site, reduce the risk of workers inhaling pollutants, and reduce physiological discomfort caused by odor irritation, providing a safer working environment for operators.

[0035] 2. By integrating the drying unit and the purification unit into the drying component, the waste gas treatment process is completed simultaneously with the drying of the yarn after impregnation and coating, avoiding the efficiency loss caused by the separate operation of drying and waste gas treatment in the traditional process, and ensuring the continuity and stability of the graphene dispersion coating operation.

[0036] 3. Through the setting of a multi-layer filter screen, which is composed of cotton fiber, graphene HEPA, and activated carbon honeycomb, the exhaust gas can be purified. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of this utility model;

[0038] Figure 2 This is a cross-sectional view of the present invention;

[0039] Figure 3 A cross-sectional view of this utility model along the transverse direction of the drying unit.

[0040] The attached figures are labeled as follows: 100, support frame; 200, dipping mechanism; 210, solution tank; 220, replenishment hole; 230, guide wheel; 240, linear actuator; 250, adjustable guide wheel; 300, drying unit; 310, drying chamber; 320, hot air chamber; 321, airflow inlet; 330, heating wire; 340, air supply device; 400, purification unit; 410, recovery chamber; 420, exhaust port; 430, suction device; 440, multi-stage purification structure; 441, metal frame; 442, multi-layer filter screen; 450, gas circulation pipeline. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0042] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0043] The continuous coating and drying apparatus for graphene dispersion provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0044] Example 1:

[0045] like Figures 1 to 3 As shown in the figure, this application provides a continuous coating and drying apparatus for graphene dispersion, comprising:

[0046] Support frame 100;

[0047] The dip coating mechanism 200 is mounted on the surface of the support frame 100 and is used to perform dip coating operations on yarn.

[0048] The drying component, installed adjacent to the dip coating mechanism 200, has the function of dehydrating and drying the yarn after dip coating;

[0049] The drying assembly includes a drying unit 300 and a purification unit 400. The drying unit 300 is used to perform hot air drying operations, and the purification unit 400 is used to treat the gas emissions generated during the drying process.

[0050] In some embodiments of this application, such as Figure 1 As shown, the purification unit 400 installed in the drying assembly can treat the volatile gases and odor molecules generated during the drying process, reduce the content of harmful components in the gas, avoid direct emission that affects air quality, effectively improve the environmental friendliness of the production site, reduce the risk of workers inhaling pollutants, and reduce physiological discomfort caused by odor stimulation, providing a safer working environment for operators.

[0051] Meanwhile, by integrating the drying unit 300 and the purification unit 400 into the drying assembly, the waste gas treatment process is completed simultaneously with the drying of the yarn after impregnation and coating, avoiding the efficiency loss caused by the separate operation of drying and waste gas treatment in traditional processes, and ensuring the continuity and stability of the graphene dispersion coating operation.

[0052] Example 2:

[0053] This application provides a continuous coating and drying device for graphene dispersion. In addition to the above-mentioned technical features, the continuous coating and drying device for graphene dispersion in this application also includes the following technical features.

[0054] like Figures 1 to 3 As shown, the drying unit 300 includes:

[0055] The drying chamber 310 has inlet and outlet channels;

[0056] A hot air chamber 320 is disposed inside the drying chamber 310. The hot air chamber 320 has an airflow inlet 321 at the front and is connected to the interior of the drying chamber 310 at the rear.

[0057] Heating wire 330 is disposed inside hot air cavity 320;

[0058] Among them, the air supply device 340 is integrated at the air inlet 321.

[0059] In this embodiment, the inlet and outlet channels of the drying chamber 310 form a yarn transport path, allowing the coated yarn to maintain its forward motion to complete the drying process. This avoids process interruptions caused by traditional batch drying and improves the continuity of the graphene dispersion coating production line. Simultaneously, the hot air chamber 320 adopts a front-inlet and rear-outlet design. Combined with the heating function of the heating wire 330, it can form a unidirectional hot airflow field along the yarn's direction of travel. This not only accelerates solvent evaporation from the yarn surface through thermal convection but also prevents graphene coating peeling caused by turbulence.

[0060] Furthermore, the air supply device 340 is integrated at the airflow inlet 321. By forcibly supplying air, it increases the airflow velocity within the hot air chamber 320, rapidly converting the heat generated by the heating wire 330 into directional, high-speed hot air, thus shortening the yarn drying cycle. The initial air supply device here is an electrically powered fan. Heating is accomplished through multiple heating wires 330, which generate heat when energized, thereby heating the air within the hot air chamber 320.

[0061] Example 3:

[0062] This application provides a continuous coating and drying device for graphene dispersion. In addition to the above-mentioned technical features, the continuous coating and drying device for graphene dispersion in this application also includes the following technical features.

[0063] like Figures 1 to 3 As shown, the purification unit 400 includes:

[0064] The recovery chamber 410 is connected to the exhaust port 420 of the drying chamber 310;

[0065] The suction device 430 is located at the exhaust port 420;

[0066] A multi-stage purification structure 440 is installed inside the recovery chamber 410 to purify the exhaust gas.

[0067] In this embodiment, the multi-stage purification device includes a metal frame 441 mounted outside the exhaust port 420, and a multi-layer filter 442 installed on the metal frame 441. The multi-layer filter 442 is composed of cotton fiber, graphene HEPA, and activated carbon honeycomb, which can purify exhaust gas. The cotton fiber layer initially filters large particles of paint mist and fiber debris, the graphene-modified HEPA filter intercepts submicron particles, and the activated carbon honeycomb layer deeply adsorbs volatile organic compounds and odor molecules. The metal frame 441 is made of stainless steel and is detachable and can be replaced periodically.

[0068] Meanwhile, the recovery chamber 410 is connected to the exhaust port 420 of the drying chamber 310 to form a closed gas channel, allowing volatile gases and odor molecules generated during the drying process to enter the recovery chamber 410 through the exhaust port 420, thus preventing pollutants from spreading to the production environment.

[0069] Furthermore, it also includes a gas circulation pipeline 450, which connects the recovery chamber 410 and the hot air chamber 320 to form a closed loop.

[0070] By connecting the gas circulation pipeline 450 to the recovery chamber 410 and communicating with the hot air chamber 320, some of the gas in the recovery chamber 410 can be returned to the hot air chamber 320. The gas here is purified gas, thereby realizing the recycling of gas and improving the energy utilization efficiency of the entire system. In order to further ensure the treatment effect of the exhaust gas, a multi-stage purification structure 440 can be installed between the return to the hot air chamber 320 to purify the exhaust gas again.

[0071] Example 4:

[0072] This application provides a continuous coating and drying device for graphene dispersion. In addition to the above-mentioned technical features, the continuous coating and drying device for graphene dispersion in this application also includes the following technical features.

[0073] like Figure 1 and Figure 2 As shown, the dip coating mechanism 200 includes:

[0074] The solution tank 210 is used to store graphene dispersion, and the solution tank 210 is also provided with a liquid replenishment hole 220.

[0075] Guide wheels 230 are disposed inside the solution tank 210, and multiple guide wheels 230 are provided;

[0076] The solution tank 210 has an inlet and an outlet on its two sides, respectively.

[0077] In this embodiment of the application, the dip coating mechanism 200 includes:

[0078] The solution tank 210 has multiple sets of guide wheels 230 built in, and the solution tank 210 is provided with a liquid replenishment hole 220;

[0079] Yarn inlet and outlet holes are respectively opened on both sides of the solution tank 210.

[0080] The solution tank 210 integrates a replenishment hole 220 and a drain port. The replenishment hole 220 allows for the addition of fresh solution, preventing poor yarn contact due to a drop in liquid level. The drain port quickly empties waste liquid, used to remove liquid after impregnation. Multiple sets of guide wheels 230 installed inside the solution tank 210 form a transport track, extending the contact time between the yarn and the dispersion liquid and ensuring sufficient contact. Simultaneously, the solution tank 210 has an inlet and an outlet on each side. The inlet is used to introduce the yarn to be impregnated into the solution tank 210, while the outlet is used to export the impregnated yarn for subsequent drying. Through the synergistic effect of the solution tank 210, guide wheels 230, and inlet and outlet, uniform impregnation and efficient transport of the yarn are achieved, providing a solid foundation for subsequent drying.

[0081] Furthermore, the dip coating mechanism 200 is also provided with a tension control assembly, which includes a linear drive 240 mounted on the top of the solution tank 210, and an adjustable guide wheel 250 mounted at the end of the drive to contact the yarn.

[0082] In some embodiments of this application, the adjustment structure achieves precise control of the yarn impregnation process through the synergistic action of a linear actuator 240 and an adjustable guide wheel 250. The linear actuator 240 is mounted on top of the solution tank 210, and its output shaft is connected to the adjustable guide wheel 250. When the actuator extends or retracts, the adjustable guide wheel 250 changes its relative position to the yarn accordingly. Depending on the yarn specifications and impregnation requirements, the contact area can be flexibly controlled by adjusting the actuator stroke: when the contact area between the yarn and the graphene dispersion needs to be increased, the actuator is extended to bring the guide wheel closer to the yarn; when the contact area needs to be reduced, the actuator is shortened to maintain a distance between the guide wheel and the yarn. By precisely controlling the position and height of the guide wheel, the yarn impregnation depth can be accurately adjusted, thereby achieving fine-tuning of the impregnation process.

[0083] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0084] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A graphene dispersion liquid continuous coating and drying apparatus, characterized by: include: Support frame (100); The dip coating mechanism (200) is mounted on the surface of the support frame (100) and is used to perform dip coating operations on yarn; The drying assembly, installed adjacent to the dip coating mechanism (200), has the function of dehydrating and drying the dip-coated yarn; The drying assembly includes a drying unit (300) and a purification unit (400). The drying unit (300) is used to perform hot air drying operations, and the purification unit (400) is used to treat the gas emissions generated during the drying process.

2. The apparatus according to claim 1, wherein: The drying unit (300) includes: The drying chamber (310) has inlet and outlet channels; A hot air chamber (320) is provided inside the drying chamber (310). The hot air chamber (320) has an airflow inlet (321) at the front and is connected to the interior of the drying chamber (310) at the rear. Heating wire (330) is disposed inside hot air cavity (320); An air supply device (340) is integrated at the airflow inlet (321).

3. The continuous coating and drying device for graphene dispersion according to claim 2, characterized in that: The purification unit (400) includes: The recovery chamber (410) is connected to the exhaust port (420) of the drying chamber (310); A suction device (430) is provided at the exhaust port (420); A multi-stage purification structure (440) is installed inside the recovery chamber (410) for purifying exhaust gas.

4. The apparatus according to claim 3, wherein: It also includes a gas circulation pipeline (450) that connects the recovery chamber (410) and the hot air chamber (320) to form a closed loop.

5. A continuous coating and drying apparatus for graphene dispersion according to claim 4, wherein: The dip coating mechanism (200) includes: The solution tank (210) has multiple sets of guide wheels (230) built in, and the solution tank (210) is provided with a liquid replenishment hole (220); Yarn inlet and outlet holes are respectively opened on both sides of the solution tank (210).

6. A continuous coating and drying apparatus for graphene dispersion according to claim 5, wherein: The dip coating mechanism (200) is also provided with a tension control component, which includes a linear driver (240) mounted on the top of the solution tank (210), and an adjustable guide wheel (250) mounted at the end of the driver to contact the yarn.

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