An apparatus for sintering of graphene ceramic composites

Abstract

The utility model discloses a kind of equipment for graphene ceramic composite sintering, specifically related to ceramic sintering field, including sintering furnace, the fan is symmetrically arranged in sintering furnace, gas pipeline is fixedly connected with fan side, and filter is arranged between gas pipeline, and gas pipeline side is provided with gas heater, the filter side is provided with connecting plate, the connecting plate side is provided with filter plate at equal intervals, and filter plate and filter are engaged connection, heating element is arranged at equal intervals in sintering furnace.The utility model can carry out efficient filtration to the gas entering hearth by the cooperation of gas pipeline and filter, remove impurity particles, prevent it from happening adverse reaction with material;Simultaneously, closed loop gas circulation is formed by symmetrically arranged fan and gas pipeline, ensure that gas concentration in hearth is uniform, flow is stable, provide clean sintering atmosphere for graphene ceramic composite, avoid material oxidation or graphene agglomeration.

Description

Technical Field

[0001] This utility model relates to the field of ceramic sintering, and more specifically, to a device for sintering graphene ceramic composite materials. Background Technology

[0002] Ceramic sintering is the general term for the densification process and phenomenon of the green body at high temperature. As the temperature increases, the powder particles in the ceramic green body with large specific surface area and high surface energy try to change in the direction of reducing surface energy. A search revealed an existing patent (publication number: CN 211012450 U) that discloses a device for sintering graphene ceramic composite materials, specifically relating to the field of ceramic sintering technology. The device includes a housing with a sintering mechanism inside, extending to the outside of the housing. The sintering mechanism includes a base fixedly connected to the inner wall of the bottom of the housing. A motor is fixedly connected to the bottom of the housing, and the motor's output shaft extends through the bottom of the housing and the base to the top surface of the base. A support plate is fixedly connected to the top of the motor's output shaft. This invention, by setting up a support plate, support ring, fan, suction hood, and blowing hood, can quickly cool the sintered ceramic material by blowing air. Simultaneously, by setting up a first bevel gear, a second bevel gear, a transmission shaft, a first gear, a second gear, and an eccentric wheel, the eccentric wheel can rotate simultaneously when the motor is working, thereby pushing the support block and causing it to drive the cleaning brush to continuously brush the filter screen.

[0003] In existing graphene ceramic composite sintering processes, the gas flow within the furnace is not smooth, which can easily lead to local gas concentration imbalances. At the same time, impurities in the gas cannot be effectively filtered and may react chemically with the material surface, damaging the graphene dispersion and the integrity of the ceramic matrix. Furthermore, the aforementioned cited patent documents do not propose any solutions to address these issues. Therefore, an apparatus for sintering graphene ceramic composite materials is proposed to address the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide an apparatus for sintering graphene ceramic composite materials to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for sintering graphene ceramic composite materials, comprising a sintering furnace, wherein fans are symmetrically arranged inside the sintering furnace, gas pipes are fixedly connected to one side of each fan, filters are arranged between the gas pipes, and a gas heater is arranged on one side of each gas pipe.

[0006] Preferably, a connecting plate is provided on one side of the filter, and filter plates are provided at equal intervals on one side of the connecting plate, and the filter plates are engaged with the filter.

[0007] Preferably, heating elements are evenly spaced inside the sintering furnace, and temperature sensors are symmetrically arranged at both ends of the inner wall of the sintering furnace, and a sealing cover is hinged to the upper end of the sintering furnace.

[0008] Preferably, a drive motor is provided at the bottom of the inner wall of the sintering furnace, and a tray is connected to one side of the drive motor via a rotating shaft.

[0009] Preferably, a bearing seat is fixedly provided at the bottom of the inner wall of the sintering furnace, and connecting rods are provided at equal intervals outside the rotating shaft and fixedly connected to the bottom of the tray.

[0010] Preferably, a sliding rod is fixedly provided on the outer wall of the tray, and a sliding groove is provided on the inner wall of the sintering furnace, with the sliding rod slidably connected inside the sliding groove.

[0011] Preferably, an inner layer is provided on one side of the sintering furnace, and the inner layer is made of high-purity graphite material.

[0012] Preferably, the inner layer is connected to the outer layer on one side via a heat insulation layer, and the outer layer is made of ceramic fiber material.

[0013] The technical effects and advantages of this utility model are as follows: Compared with existing technologies, this equipment for sintering graphene ceramic composites can efficiently filter the gas entering the furnace through the combination of gas pipelines and filters, removing impurity particles and preventing them from reacting adversely with the materials. At the same time, the symmetrically arranged fans and gas pipelines form a closed-loop gas circulation, ensuring uniform gas concentration and stable flow in the furnace, providing a clean and consistent sintering atmosphere for graphene ceramic composites, and avoiding material oxidation or graphene agglomeration. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the gas pipeline structure of this utility model.

[0016] Figure 3 This is a cross-sectional view of the overall structure of this utility model.

[0017] Figure 4 This is an enlarged schematic diagram of the structure at point A of this utility model.

[0018] Figure 5 This is a schematic diagram of the outer layer structure of this utility model.

[0019] The attached figures are labeled as follows: 1. Sintering furnace; 2. Sealing cover; 3. Gas pipeline; 4. Fan; 5. Filter; 6. Filter plate; 7. Connecting plate; 8. Gas heater; 9. Heating element; 10. Temperature sensor; 11. Drive motor; 12. Support base; 13. Rotating shaft; 14. Connecting rod; 15. Tray; 16. Slide rod; 17. Slide groove; 18. Outer layer; 19. Insulation layer; 20. Inner layer. Detailed Implementation

[0020] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1 As attached Figures 1 to 5 The device shown is for sintering graphene ceramic composite materials, including a sintering furnace 1. Fans 4 are symmetrically arranged inside the sintering furnace 1. Gas pipes 3 are fixedly connected to one side of each fan 4. Filters 5 are arranged between the gas pipes 3. Gas heaters 8 are arranged on one side of each gas pipe 3.

[0022] Specifically, the blower 4 drives the heated clean gas to form a stable circulating flow field in the furnace, eliminating the problem of local gas concentration imbalance and ensuring that all parts of the graphene ceramic composite material can come into contact with a uniform gas atmosphere. At the same time, the gas heater 8 preheats the gas purified by the filter 5, heating the gas to a range that matches the sintering temperature in the furnace, avoiding local temperature fluctuations caused by the entry of low-temperature clean gas into the furnace, ensuring the uniformity of the furnace temperature, and reducing the extra load on the heating element 9, thereby improving energy utilization efficiency.

[0023] Example 2 Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 5 As shown below, see details: In a preferred embodiment, a connecting plate 7 is provided on one side of the filter 5, and filter plates 6 are provided at equal intervals on one side of the connecting plate 7, and the filter plates 6 are snap-fitted to the filter 5; furthermore, by providing filter plates 6, the multi-layer filtration structure efficiently intercepts impurity particles in the gas; at the same time, the snap-fit ​​design facilitates quick disassembly, replacement or cleaning, ensuring the continuity of the filtration effect and reducing equipment downtime for maintenance.

[0024] In a preferred embodiment, heating elements 9 are evenly spaced inside the sintering furnace 1, and temperature sensors 10 are symmetrically arranged at both ends of the inner wall of the sintering furnace 1. A sealing cover 2 is hinged to the upper end of the sintering furnace 1. Furthermore, by providing heating elements 9, a basic heat source is provided for the furnace chamber. Through the uniformly distributed heating points, the furnace chamber can be rapidly heated as a whole. At the same time, the circulating airflow transfers heat to the surface and interior of the composite material, ensuring that all parts of the material are heated evenly and avoiding sintering defects caused by insufficient local heating.

[0025] In a preferred embodiment, a drive motor 11 is provided at the bottom of the inner wall of the sintering furnace 1, and a tray 15 is connected to one side of the drive motor 11 via a rotating shaft 13. Furthermore, by providing the drive motor 11, the tray 15 is rotated by driving the rotating shaft 13, so that the graphene ceramic composite material blank on the tray 15 is in full contact with the hot air flow and clean gas, avoiding insufficient local sintering and improving the uniformity of material sintering.

[0026] In a preferred embodiment, a bearing seat 12 is fixedly provided at the bottom of the inner wall of the sintering furnace 1, and connecting rods 14 are provided at equal intervals on the outside of the rotating shaft 13 and fixedly connected to the bottom of the tray 15; furthermore, by providing connecting rods 14, the connection strength between the tray 15 and the rotating shaft 13 is enhanced, preventing the tray 15 from deforming due to load or rotational centrifugal force, and ensuring the stability of the tray 15 during operation.

[0027] In a preferred embodiment, a slide rod 16 is fixedly provided on the outer wall of the tray 15, and a groove 17 is provided on the inner wall of the sintering furnace 1, with the slide rod 16 slidably connected inside the groove 17; furthermore, by using the slide rod 16 in conjunction with the groove 17, the rotation trajectory of the tray 15 is restricted, preventing radial offset or shaking when the tray 15 rotates, ensuring that the tray 15 always rotates smoothly along a fixed path, and further ensuring the uniformity of material heating and gas contact.

[0028] In a preferred embodiment, an inner layer 20 is provided on one side of the sintering furnace 1. The inner layer 20 is made of high-purity graphite material. Furthermore, by providing an inner layer 20 made of high-purity graphite material, which is resistant to high temperatures and has strong chemical stability, it can directly contact the composite material in sintering, thereby avoiding chemical reactions between itself and the material at high temperatures and uniformly conducting heat.

[0029] In a preferred embodiment, the inner layer 20 is connected to the outer layer 18 via the heat insulation layer 19. The outer layer 18 is made of ceramic fiber material. Furthermore, by providing the outer layer 18, which is made of ceramic fiber material, it has good structural strength and heat insulation performance, which can prevent heat from the furnace from being dissipated to the outside, reduce the external temperature during equipment operation, and ensure operational safety.

[0030] The working process of this utility model is as follows: The gas required for sintering is transported to filter 5 via gas pipeline 3, and undergoes multi-layer filtration through equally spaced filter plates 6 on connecting plate 7 to efficiently remove dust, oxides, and other impurities from the gas, preventing chemical reactions between impurities and the surface of the composite material. The filtered clean gas flows through gas heater 8, is heated to the required sintering temperature, and is then evenly distributed into the furnace chamber by symmetrically arranged fans 4 inside the sintering furnace 1, forming a closed-loop gas circulation flow field. The symmetrical arrangement of fans 4 and gas pipeline 3 ensures uniform airflow distribution within the furnace chamber, preventing local gas concentration imbalances and maintaining the stability of the gas atmosphere inside the furnace, thus preventing graphene agglomeration and oxidation of the ceramic matrix. Heating elements 9, evenly spaced inside the sintering furnace 1, are simultaneously activated, providing a basic heat source for the furnace chamber and achieving rapid overall heating. Temperature sensors 10, symmetrically arranged at both ends of the furnace chamber inner wall, monitor temperature data in different areas in real time and dynamically feed back to the control system to adjust the output power of the heating elements 9 and the heating temperature of the gas heater 8. The circulating airflow carries heat and diffuses it evenly within the furnace, forming a synergistic heating mechanism with the heating element 9. This effectively reduces the temperature difference within the furnace, ensuring uniform heating of all parts of the composite material. The graphene ceramic composite material blank is placed on the tray 15. After the drive motor 11 starts, it rotates the tray 15 via the rotating shaft 13. The connecting rod 14 outside the rotating shaft 13 enhances the load-bearing stability of the tray 15. The sliding rod 16 on the outer wall of the tray 15 slides along the sliding groove 17 on the inner wall of the sintering furnace 1, ensuring smooth and unbiased rotation of the tray 15. This allows the blank to come into full contact with the hot airflow and clean gas, improving sintering uniformity. The double-layer furnace structure of the sintering furnace 1 provides thermal insulation. The high-purity graphite inner layer 20 is heat-resistant and chemically stable, while the ceramic fiber outer layer 18 and the insulation layer 19 reduce heat loss, maintaining the stability of the temperature and gas environment within the furnace and providing continuous and stable conditions for the densification process of the composite material.

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An apparatus for sintering graphene ceramic composite materials, comprising a sintering furnace (1), characterized in that; The sintering furnace (1) is symmetrically equipped with fans (4), and each fan (4) is fixedly connected to a gas pipe (3) on one side. A filter (5) is installed between the gas pipes (3), and a gas heater (8) is installed on one side of the gas pipes (3).

2. The equipment for sintering graphene ceramic composite materials according to claim 1, characterized in that: A connecting plate (7) is provided on one side of the filter (5), and filter plates (6) are provided at equal intervals on one side of the connecting plate (7), and the filter plates (6) are engaged with the filter (5).

3. The apparatus for sintering graphene ceramic composite materials according to claim 1, characterized in that: The sintering furnace (1) is equipped with heating elements (9) at equal intervals inside, and temperature sensors (10) are symmetrically arranged at both ends of the inner wall of the sintering furnace (1). A sealing cover (2) is hinged to the upper end of the sintering furnace (1).

4. The equipment for sintering graphene ceramic composite materials according to claim 1, characterized in that: A drive motor (11) is provided at the bottom of the inner wall of the sintering furnace (1), and a tray (15) is connected to one side of the drive motor (11) via a rotating shaft (13).

5. The apparatus for sintering graphene ceramic composite materials according to claim 1, characterized in that: The sintering furnace (1) has a bearing seat (12) fixedly installed at the bottom of the inner wall, and the rotating shaft (13) is provided with connecting rods (14) at equal intervals on the outside, which are fixedly connected to the bottom of the tray (15).

6. The apparatus for sintering graphene ceramic composite materials according to claim 5, characterized in that: The outer wall of the tray (15) is fixedly provided with a slide rod (16), and the inner wall of the sintering furnace (1) is provided with a slide groove (17), and the slide rod (16) is slidably connected inside the slide groove (17).

7. The apparatus for sintering graphene ceramic composite materials according to claim 1, characterized in that: The sintering furnace (1) has an inner layer (20) on one side, which is made of high-purity graphite material.

8. The apparatus for sintering graphene ceramic composite materials according to claim 7, characterized in that: The inner layer (20) is connected to an outer layer (18) via a heat insulation layer (19) on one side. The outer layer (18) is made of ceramic fiber material.

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