An efficient activation reaction device

Abstract

The utility model provides a kind of efficient activation reaction device, it is specifically related to porous carbon material preparation technical field, specifically including the furnace body of vertical arrangement, the reaction chamber for being used to carry out activation reaction is equipped in the furnace body interior, the bottom of the reaction chamber vertically is equipped with distribution diffusion pipe, multiple diffusion holes for making activation agent uniform spray are opened in the distribution diffusion pipe, the furnace body is also provided with the exhaust port, feed inlet, discharge port and activation agent inlet of communication with reaction chamber, the activation agent inlet includes the first activation agent inlet of being arranged in the furnace body bottom and being connected with the distribution diffusion pipe, and the second activation agent inlet of being arranged in the side of the furnace body and being connected with the reaction chamber. Using the technical scheme, the technical problem that the flow path of activation agent is short, flow direction is single during the preparation process of porous carbon can be solved.

Description

Technical Field

[0001] This invention relates to the field of porous carbon material preparation technology, and in particular to a highly efficient activation reaction device. Background Technology

[0002] Porous carbon materials, due to their large specific surface area, well-developed pore structure, excellent chemical stability, and good electrical conductivity, have been widely studied and applied in fields such as energy storage (e.g., supercapacitors, battery electrodes), environmental remediation (e.g., volatile organic compound treatment, water purification), and catalyst supports. The performance of porous carbon materials largely depends on the type, distribution, and specific surface area of ​​their pore structure; therefore, how to achieve precise control over the pore structure through fabrication processes has always been an important research direction in this field.

[0003] Currently, physical activation is one of the main methods for preparing porous carbon materials. This method typically involves introducing an activation gas (such as water vapor or carbon dioxide) at high temperatures. The gas selectively vaporizes the carbon precursor, etching it to create abundant micropores, mesopores, or macropores, thereby obtaining porous carbon materials with a specific pore size distribution. During the activation process, the uniformity of gas distribution, activation efficiency, and energy consumption of the reaction apparatus are key factors affecting the final material's specific surface area, pore size distribution, yield, and production cost.

[0004] Existing activation reaction devices mainly include vertical furnaces and rotary kilns, typically employing a slender cylindrical structure with feed inlets, discharge outlets, and activator inlets on the outside of the furnace body. While they can achieve basic activation treatment, the simple internal structure and mostly hollow furnace chamber result in short and unidirectional flow paths for the activating gas, easily leading to uneven gas distribution and the formation of "dead zones." This results in significant differences in the degree of activation in different areas, low activator utilization, resource waste, and inefficiency, ultimately reducing the first-pass yield of the product and affecting the controllability and performance of the material's pore structure. Therefore, there is an urgent need for a high-efficiency activation reaction device that can improve gas distribution, enhance activation uniformity and efficiency, and also control energy consumption. Summary of the Invention

[0005] The purpose of this invention is to provide an efficient activation reaction device to solve the technical problem of short flow path and single flow direction of activator in the preparation of porous carbon.

[0006] In order to achieve the above-mentioned objectives of this utility model, the following technical solution is adopted: This utility model provides a high-efficiency activation reaction device, including a vertically arranged furnace body. The furnace body contains a reaction chamber for the activation reaction. A distribution diffusion pipe is vertically arranged at the bottom of the reaction chamber, and the distribution diffusion pipe has multiple diffusion holes for uniformly spraying the activator. The furnace body also has an exhaust port, a feed port, a discharge port, and an activator inlet communicating with the reaction chamber. The activator inlet includes a first activator inlet located at the bottom of the furnace body and communicating with the distribution diffusion pipe, and a second activator inlet located on the side of the furnace body and communicating with the reaction chamber.

[0007] Furthermore, the furnace body includes a furnace wall and an inner furnace wall disposed inside the furnace wall, the furnace wall and the inner furnace wall forming a heating zone, and the inner furnace wall enclosing a reaction chamber for carrying out the activation reaction.

[0008] Furthermore, the distribution diffusion tube has an n-type structure and is vertically installed at the bottom of the reaction chamber.

[0009] Furthermore, there are two first activator inlets, which are symmetrically arranged around the central axis of the furnace body.

[0010] Furthermore, the multiple diffusion holes provided on the distribution diffusion tube are through holes arranged at equal intervals.

[0011] Furthermore, the opening direction of the diffusion hole is perpendicular to the wall of the distribution diffusion tube.

[0012] Furthermore, the distribution diffuser tube is made of high-temperature resistant stainless steel.

[0013] Furthermore, the exhaust port is located at the top of the furnace body, and the feed port and discharge port are respectively located on both sides of the furnace body.

[0014] The basic principles and beneficial effects of this technical solution are as follows: In this technical solution, the carbon precursor raw material enters the furnace body through the feed inlet and moves downwards under gravity. The activator (such as high-temperature steam or CO2) is introduced through two first activator inlets at the bottom of the furnace body and a second activator inlet on the side. The activator entering from the bottom passes through an n-shaped distribution diffuser pipe and is uniformly sprayed out from multiple diffuser holes in multiple directions and angles. This strong and dispersed airflow fully contacts the falling carbon raw material, causing it to move randomly, greatly increasing the mixing degree of the gas-solid two-phase mixture and the reaction contact area. The activator entering from the side further replenishes the reaction gas. The exhaust gas after the activation reaction is discharged from the exhaust port at the top, and the porous carbon material after the reaction is completed is finally collected from the discharge port at the bottom.

[0015] Compared with existing technologies, the advantages of this invention are as follows: The activator gas is injected uniformly and in multiple directions into the reaction chamber through the bottom n-shaped distribution diffuser tube and its multiple rows of diffuser holes, completely solving the problems of uneven gas distribution and "dead zones" in traditional devices. The multi-directionally ejected gas causes the material to move violently and randomly within the furnace, greatly enhancing the gas-solid mass and heat transfer efficiency, ensuring the sufficiency and uniformity of the activation reaction, and improving the consistency of product quality. Simultaneously, it extends the effective flow path of the activator gas within the furnace, allowing for more thorough contact with the material and reducing the proportion of activator gas discharged without participating in the reaction, thereby significantly improving activator utilization and reducing energy consumption and production costs. Furthermore, the multi-inlet design allows the device to flexibly adjust the gas inlet ratio at different locations according to process requirements, resulting in a reasonable structure and strong applicability, suitable for activation processes involving various activating gases and different carbon precursors. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency activation reaction device according to the present invention; Figure 2 This is a front view of the distribution diffusion tube in a high-efficiency activation reaction device of this utility model. Figure 3 This is a side view of the distribution diffusion tube in a high-efficiency activation reaction device of this utility model. Detailed Implementation

[0018] The embodiments and examples of this utility model will be described in detail below. However, those skilled in the art will understand that the following embodiments and examples are only for illustrating this utility model and should not be considered as limiting the scope of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0019] The markings in the accompanying drawings include: furnace body 1, exhaust port 2, feed port 3, discharge port 4, second activator inlet 5, first activator inlet 6, distribution diffuser 7, diffuser hole 71, reaction chamber 8, inner furnace wall 9, furnace wall 10.

[0020] This invention provides a highly efficient activation reaction device, as shown in the attached figure. Figure 1 As shown, the furnace includes a vertically arranged furnace body 1, which has an overall cylindrical structure. The furnace body 1 specifically includes a furnace wall 10 and an inner furnace wall 9 disposed inside the furnace wall 10. Insulation material is filled between the two, and heating elements (resistance wires in this embodiment) are arranged therein, thus forming a heating zone. The inner furnace wall 9 encloses a reaction chamber 8 for the activation reaction. A distribution diffusion pipe 7, made of high-temperature resistant stainless steel, is vertically arranged at the bottom of the reaction chamber 8 to directionally introduce external activators into the reaction chamber 8, thereby reacting with the carbon raw material.

[0021] In this embodiment, the furnace body 1 is also provided with an exhaust port 2, a feed port 3, a discharge port 4, and an activator inlet communicating with the reaction chamber 8. The exhaust port 2 is located at the top of the furnace body 1, and the top exhaust conforms to the natural law of hot air rising, which is conducive to the smooth discharge of waste gas. The feed port 3 and the discharge port 4 are respectively located on both sides of the furnace body 1. In this embodiment, the feed port 3 is located on the right side of the furnace body 1, and the discharge port 4 is located on the left side of the furnace body 1. Meanwhile, the activator inlet in this embodiment includes a first activator inlet 6 located at the bottom of the furnace body 1 and communicating with the distribution and diffusion pipe 7, and a second activator inlet 5 located on the side of the furnace body 1 and communicating with the reaction chamber 8.

[0022] The furnace body 1 has two first activator inlets 6, symmetrically arranged around its central axis. This symmetrical design ensures that the activator gas flow from the bottom of the device is symmetrical and balanced, preventing uneven reaction due to flow deviation. Simultaneously, the dual-inlet design provides a larger gas flow rate, meeting the process requirements of high-intensity activation. The second activator inlet 5, located on the side of the furnace body 1, forms a three-dimensional gas intake pattern with the first activator inlet 6 at the bottom, enhancing the mixing intensity of the gas and material and significantly improving the efficiency and uniformity of the activation reaction.

[0023] In this embodiment, the distribution diffuser 7 adopts an n-type structure, as shown in the attached figure. Figure 2 As shown, the n-shaped distribution diffuser 7 is vertically fixed to the bottom of the reaction chamber 8. Its two bottom ports pass through the inner furnace wall and are respectively connected to the two first activator inlets 6 at the bottom of the furnace body 1 and sealed. This n-shaped distribution diffuser 7 can cover a wider area of ​​the furnace bottom, thus perfectly matching the two bottom first activator inlets 6, maximizing and homogenizing the gas distribution range. Simultaneously, its vertical fixation to the bottom of the reaction chamber 8 ensures the stability and robustness of the structure, making it suitable for long-term operation in high-temperature reaction environments.

[0024] Multiple diffusion holes 71 are also provided on the vertical section of the distribution diffuser 7, as shown in the attached figure. Figure 3As shown, the plurality of diffusion holes 71 are through holes arranged at equal intervals, and the opening direction of the diffusion holes 71 is perpendicular to the pipe wall of the distribution diffusion pipe 7. By limiting the opening direction of the diffusion holes 71 to be perpendicular to the pipe wall of the distribution diffusion pipe 7, a highly efficient flow field environment can be created. The vertically injected activator can generate the maximum disturbance kinetic energy, directly impacting and agitating the material, causing it to produce violent disordered motion, which greatly enhances the mixing and contact efficiency of the gas and solid phases. In this embodiment, nine through holes with equal intervals (0.3 meters apart) and a diameter of 0.3 meters are opened on the vertical pipe section of the distribution diffusion pipe 7 as diffusion holes 71. Six through holes with equal intervals (0.06 meters apart) and a diameter of 0.1 meters are opened on its horizontal pipe section as diffusion holes 71. Of course, an appropriate number of through holes can be set on the distribution diffusion pipe 7 according to specific circumstances.

[0025] The high-efficiency activation reaction device in this embodiment is used as follows: First, the heating element is activated to preheat the reaction chamber 8 surrounded by the inner furnace wall, stabilizing its temperature in the high-temperature range required for activation, which is 800-1000℃. After the temperature reaches the target, the carbon precursor raw material is added through the feed inlet 3, allowing it to fall into the high-temperature reaction zone under gravity. At the same time, activator gas such as water vapor or carbon dioxide is injected into the n-type distribution diffuser pipe 7 through the two symmetrical first activator inlets 6 at the bottom, and sprayed into the bottom of the reaction chamber 8 in a multi-directional and uniform manner through the vertical diffusion holes 71 on its surface; additionally, some activator can be introduced from the second side inlet to form a three-dimensional gas intake pattern.

[0026] Subsequently, the activator ejected from the distribution diffuser 7 forms a violently upward turbulent flow, strongly impacting and agitating the falling carbon raw material, causing it to tumble and disperse in a highly disordered state within the furnace. This extremely high gas-solid mixing intensity significantly increases the contact area and mass transfer efficiency, allowing the activator to fully oxidize with the carbon at high temperatures, efficiently etching and generating a well-developed porous structure with a high specific surface area. The waste gas generated by the reaction rises to the top of the furnace with the hot gas flow and is then discharged through the exhaust port 2.

[0027] After the reaction is complete, the resulting porous carbon product is finally discharged and collected from outlet 4. By adjusting parameters such as the activator ratio, temperature, and feed rate at each inlet, the activation effect of different raw materials can be optimized. Through its unique structural design, this device achieves uniform, efficient, and low-energy-consumption operation of the activation reaction.

[0028] In summary, the present technical solution provides a highly efficient activation reaction device that can solve the technical problems of short flow path and single flow direction of activator in the preparation of porous carbon.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A highly efficient activation reaction apparatus, comprising a vertically arranged furnace body, characterized in that, The furnace body is equipped with a reaction chamber for activation reaction. A distribution and diffusion pipe is vertically arranged at the bottom of the reaction chamber. The distribution and diffusion pipe has multiple diffusion holes for uniform spraying of activator. The furnace body is also equipped with an exhaust port, a feed port, a discharge port and an activator inlet communicating with the reaction chamber. The activator inlet includes a first activator inlet located at the bottom of the furnace body and communicating with the distribution and diffusion pipe, and a second activator inlet located on the side of the furnace body and communicating with the reaction chamber.

2. The efficient activation reaction apparatus according to claim 1, characterized in that, The furnace body includes a furnace wall and an inner furnace wall disposed inside the furnace wall. The furnace wall and the inner furnace wall form a heating zone, and the inner furnace wall encloses a reaction chamber for activation reaction.

3. The efficient activation reaction apparatus according to claim 1, characterized in that, The distribution diffuser has an n-type structure and is vertically installed at the bottom of the reaction chamber.

4. The high-efficiency activation reaction device according to claim 3, characterized in that, The first activator inlet has two inlets, which are symmetrically arranged around the central axis of the furnace body.

5. The efficient activation reaction apparatus according to claim 1, characterized in that, The multiple diffusion holes provided on the distribution diffuser are through holes arranged at equal intervals.

6. The efficient activation reaction apparatus according to claim 5, characterized in that, The opening direction of the diffusion hole is perpendicular to the wall of the distribution diffusion tube.

7. The efficient activation reaction apparatus according to claim 1, characterized in that, The distribution diffuser is made of high-temperature resistant stainless steel.

8. The efficient activation reaction apparatus according to claim 1, characterized in that, The exhaust port is located at the top of the furnace body, and the feed port and discharge port are located on both sides of the furnace body, respectively.

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