An integrated carbon activation furnace for coal-based activated carbon production

Abstract

This invention relates to the field of activated carbon production technology and discloses an integrated carbon activation furnace for coal-based activated carbon production. The furnace includes a heating and preheating chamber and a first heating and carbonization chamber located at the bottom end of the heating and preheating chamber. A second heating and carbonization chamber is fixedly installed on the side of the first heating and carbonization chamber facing away from the heating and preheating chamber. A drying and carbonization chamber is fixedly installed on the side of the second heating and carbonization chamber facing away from the first heating and carbonization chamber. A multi-stage coupling is rotatably installed on the side of the heating and preheating chamber facing away from the drying and carbonization chamber. The end of the multi-stage coupling passes through both the first and second heating and carbonization chambers. This invention effectively avoids the defects of traditional structures, such as insufficient material contact with the activator, low material guiding efficiency, and easy agglomeration and coking. While improving production continuity and stability, it also ensures product quality, possessing significant structural and technological advantages.

Description

Technical Field

[0001] This invention relates to the field of activated carbon production technology, specifically to an integrated carbon activation furnace for the production of coal-based activated carbon. Background Technology

[0002] The core of coal-based activated carbon production lies in two key stages: carbonization and activation. The carbonization stage requires high-temperature pyrolysis of coal raw materials in an oxygen-deficient environment to remove volatiles and form a preliminary carbon structure. The activation stage involves reacting with activating agents (water vapor, carbon dioxide, etc.) at high temperatures (800-1000℃) to further develop the microporous structure, which directly determines the core properties of the product, such as specific surface area and adsorption capacity. Therefore, the technical level of related production equipment has become a key factor affecting the core competitiveness of enterprises.

[0003] Currently, the carbonization and activation equipment used in coal-based activated carbon production mainly falls into two categories: traditional segmented equipment, which completes the two processes separately through a carbonization furnace and an activation furnace; and preliminarily integrated carbon-activation furnace equipment. Segmented equipment is the most widely used, with mainstream activation furnace types including the Sleip furnace, rotary activation furnace, and Sterk furnace. To address the problems of cumbersome process connections, high heat loss, and low production efficiency associated with segmented equipment, the industry has gradually developed integrated carbon-activation furnace equipment, attempting to integrate the carbonization and activation processes into a single furnace body, shortening the production process and reducing energy consumption.

[0004] However, existing integrated carbon activation furnaces still have many technical pain points, mainly reflected in poor activation uniformity, unreasonable airflow distribution in the furnace leading to insufficient contact between raw materials and activators; and insufficient equipment stability, which is prone to coking, burn-through and other failures. To address these issues, we propose an integrated carbon activation furnace for the production of coal-based activated carbon. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides an integrated carbon activation furnace for the production of coal-based activated carbon, which solves the problems of good activation uniformity and strong equipment stability.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: an integrated carbon activation furnace for coal-based activated carbon production, comprising a heating and preheating chamber and a heating and carbonization chamber one disposed at the bottom end face of the heating and preheating chamber. A heating and carbonization chamber two is fixedly installed on the side of the heating and carbonization chamber one away from the heating and preheating chamber. A drying and carbonization chamber is fixedly installed on the side of the heating and carbonization chamber two away from the heating and carbonization chamber one. A multi-stage coupling is rotatably installed on the side of the heating and preheating chamber away from the drying and carbonization chamber. The end of the multi-stage coupling facing the drying and carbonization chamber passes through the heating and carbonization chamber one and the heating and carbonization chamber two, and is rotatably installed in the drying and carbonization chamber. The inner bottom end and the outer wall of the multi-stage coupling rotating rod are rotatably connected to heating carbonization chamber one and heating carbonization chamber two. The inner wall of the heating preheating chamber opposite to the heating carbonization chamber one is equipped with a frame-shaped fan-shaped stirring plate one. The frame-shaped fan-shaped stirring plate is fixedly installed on the outer wall of the multi-stage coupling rotating rod. The outer wall of the heating preheating chamber opposite to the frame-shaped fan-shaped stirring plate one is inserted and installed with a feeding chamber one. The side of the feeding chamber one facing the heating carbonization chamber one is inserted and installed on the heating carbonization chamber one. The outer wall of the heating carbonization chamber one opposite to the frame-shaped fan-shaped stirring plate one is inserted and installed with a feeding chamber two. The side of the feeding chamber two facing the heating carbonization chamber two is inserted and installed on the heating carbonization chamber two.

[0009] Preferably, a guiding screw is rotatably mounted on the inner side wall of the feeding chamber opposite to the heating and preheating chamber, and a feeding screw is mounted in the feeding chamber at a position parallel to the guiding screw. A suitable small motor 1 and a small motor 2 are fixedly installed in the feeding chamber at a position corresponding to the outer wall of the guiding screw and the feeding screw.

[0010] Preferably, a distributor is installed on the bottom end face of the heating and preheating chamber away from the first frame fan-shaped stirring plate, and the distributor is placed inside the first heating and carbonization chamber and fixedly connected to the heating and preheating chamber. An activator delivery pipe is installed on the side of the distributor perpendicular to the first frame fan-shaped stirring plate, and the activator delivery pipe is located on the outer wall side of the first heating and carbonization chamber and fixedly connected to the distributor. A trapezoidal stirring plate is provided on the side of the distributor away from the first heating and preheating chamber, and the trapezoidal stirring plate is placed inside the first heating and carbonization chamber and sleeved and fixedly installed on the outer wall of the multi-stage coupling rotating rod. A screening frame is fixedly attached to the side of the trapezoidal stirring plate away from the distributor.

[0011] Preferably, a limiting frame is fixedly connected to the side of the screening frame facing away from the trapezoidal stirring plate, and the limiting frame is placed inside the heating and carbonization chamber and fixedly connected to the heating and carbonization chamber. A trapezoidal stirring plate is provided on the side of the limiting frame facing the inner wall of the heating and carbonization chamber, and the trapezoidal stirring plate is fixedly attached to the bottom of the inner wall of the heating and carbonization chamber. The trapezoidal stirring plate is sleeved and fixedly installed on the outer wall of the multi-stage coupling rotating rod.

[0012] Preferably, a diverter two is fixedly installed on the side of the activator delivery pipe facing the heating carbonization chamber two, and the diverter two is located inside the heating carbonization chamber two and fixedly connected to the bottom end face of the heating carbonization chamber one. A trapezoidal stirring plate three is provided on the side of the diverter two away from the heating carbonization chamber one, and the trapezoidal stirring plate three is placed inside the heating carbonization chamber two and sleeved and fixedly installed on the outer wall of the multi-stage coupling rotating rod. A screening frame two is fixedly attached to the side of the trapezoidal stirring plate three away from the diverter two.

[0013] Preferably, the screening frame 2 is fixedly connected to the side of the trapezoidal stirring plate 3 away from the screening frame 2, and the limiting frame 2 is placed inside the heating and carbonization chamber 2 and fixedly connected to the heating and carbonization chamber 2. The limiting frame 2 is provided with a trapezoidal stirring plate 4 on the side facing the drying and carbonization chamber, and the trapezoidal stirring plate 4 is placed inside the heating and carbonization chamber 2 and sleeved and fixed on the outer wall of the multi-stage coupling rotating rod.

[0014] Preferably, a screening frame three is fixedly attached to the side of the trapezoidal stirring plate four away from the limiting frame two, and the limiting frame three is fixedly connected to the side of the screening frame three away from the trapezoidal stirring plate four. The limiting frame three is placed inside the heating and carbonization chamber two and fixedly connected to the heating and carbonization chamber two.

[0015] Preferably, a heating furnace is fixedly installed on the side of the drying and carbonization chamber away from the heating and carbonization chamber 2. The inner wall of the drying and carbonization chamber away from the heating furnace is provided with a frame-shaped stirring plate 2, and the frame-shaped stirring plate 2 is sleeved and fixed on the outer wall of the multi-stage coupling rotating rod. A discharge pipe is inserted and installed on the side of the drying and carbonization chamber away from the frame-shaped stirring plate 2.

[0016] Preferably, a pressure control installation pipe is inserted into the side of the heating and preheating chamber opposite to the first feeding chamber, and pressure control installation pipes are inserted into corresponding positions on both the first heating and carbonization chamber and the second heating and carbonization chamber. A furnace top is fixedly installed on the side of the heating and preheating chamber opposite to the drying and carbonization chamber. A suitable large motor is fixedly installed on the furnace top at a position corresponding to the multi-stage coupling rotating rod. A feed pipe is inserted into the top end face of the furnace top perpendicular to the top of the large motor.

[0017] Preferably, an installation frame is fixedly installed on one side of the heating furnace perpendicular to the drying and carbonization chamber, and the sides of the first and second feeding chambers facing the installation frame are both fixedly fitted to the installation frame.

[0018] In summary, the technical effects and advantages of this invention are as follows:

[0019] This invention achieves significant benefits through a layered processing structure design: First, the progressive processing of the preheating chamber, the first heating and carbonization chamber, the second heating and carbonization chamber (all three are electrically heated outer shells), and the drying and carbonization chamber, combined with a double-layer composite stirring structure within the carbonization chamber, effectively stabilizes the furnace pressure and significantly reduces material agglomeration and coking, ensuring a stable and smooth production process. Second, the stirring and screening structure equipped in each layered structure prevents material from clumping due to internal heating, ensuring full contact between the material and the activator, laying the foundation for efficient subsequent activation reactions. Third, the four-step progressive process of low-temperature preheating, medium-temperature activation, high-temperature activation, and drying discharge achieves thorough heating, stirring, and catalysis of the material, improving the completeness of the activation reaction and the uniformity of product quality.

[0020] Compared to traditional layered direct settling structures, this invention, through the connection of two feeding chambers connected by the outer walls of the chambers, not only accelerates material transfer efficiency and solves the problem of slow material transfer in traditional structures, but also pulverizes overheated and agglomerated materials during the transfer process, further optimizing the material state. Overall, this invention effectively avoids the defects of traditional structures, such as insufficient material contact with activators, low material transfer efficiency, and easy agglomeration and coking. While improving production continuity and stability, it also ensures product quality, demonstrating significant structural and technological advantages. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an integrated carbon activation furnace for coal-based activated carbon production according to the present invention.

[0022] Figure 2 This is a schematic diagram of the overall structure of the heating and preheating chamber, the first heating and carbonization chamber, the second heating and carbonization chamber, the drying and carbonization chamber, and the heating furnace of the present invention.

[0023] Figure 3 This is a schematic diagram of the overall structure of the frame-shaped stirring plate 1, the screening frame 1, the frame-shaped stirring plate 2, and the activator delivery pipe of the present invention;

[0024] Figure 4 This is a schematic cross-sectional view of the overall structure of the preheating chamber, the first heating and carbonization chamber, the second heating and carbonization chamber, and the drying and carbonization chamber of the present invention.

[0025] Figure 5 This is a schematic diagram of the overall structure of the drying and carbonization chamber, heating furnace, feeding chamber one, and feeding chamber two of the present invention.

[0026] In the diagram: 1. Furnace top; 101. Feed pipe; 2. Heating and preheating chamber; 201. Pressure control installation pipe; 202. Frame-shaped fan-shaped stirring plate one; 3. Heating and carbonizing chamber one; 301. Limiting frame one; 302. Trapezoidal stirring plate one; 303. Screening frame one; 304. Trapezoidal stirring plate two; 4. Heating and carbonizing chamber two; 401. Limiting frame two; 402. Limiting frame three; 403. Trapezoidal stirring plate three; 404. Screening frame two; 405. Trapezoidal stirring plate four; 06. Screening rack three; 5. Drying and carbonization chamber; 501. Discharge pipe; 502. Frame fan-shaped stirring plate two; 6. Heating furnace; 601. Installation frame; 7. Feeding chamber one; 701. Feeding screw; 702. Feeding screw; 703. Small motor one; 704. Small motor two; 8. Feeding chamber two; 9. Large motor; 901. Multi-stage coupling rotating rod; 10. Activator conveying pipe; 1001. Diverter one; 1002. Diverter two. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] refer to Figures 1-5 The carbon activation integrated furnace for coal-based activated carbon production shown includes a heating and preheating chamber 2 and a heating and carbonization chamber 3 located at the bottom end face of the heating and preheating chamber 2. Specific embodiments are shown below:

[0029] Example 1

[0030] A multi-stage coupling rotor 901 is rotatably mounted on the side of the heating / preheating chamber 2 away from the drying / carbonization chamber 5. The end of the multi-stage coupling rotor 901 facing the drying / carbonization chamber 5 passes sequentially through the first heating / carbonization chamber 3 and the second heating / carbonization chamber 4, ultimately rotatably fitting into the bottom of the drying / carbonization chamber 5. Its outer wall rotatably engages with both the first and second heating / carbonization chambers 3 and 4, respectively. A frame-shaped fan-shaped stirring plate 202 is mounted on the inner wall of the heating / preheating chamber 2 away from the first heating / carbonization chamber 3. This frame-shaped fan-shaped stirring plate 202 is sleeved and fixedly mounted on the outer wall of the multi-stage coupling rotor 901. The through-type design of the multi-stage coupling rotor 901 provides a unified power source for the stirring components of each chamber, ensuring synchronous transmission.

[0031] Example 2

[0032] A distributor 1001 is installed on the bottom end face of the heating and preheating chamber 2 away from the frame-shaped stirring plate 202. The distributor 1001 extends into the heating and carbonization chamber 3 and is fixedly connected to the heating and preheating chamber 2. An activator delivery pipe 10 is fixedly connected to the distributor 1001 on one side perpendicular to the frame-shaped stirring plate 202. The activator delivery pipe 10 is located on one side of the outer wall of the heating and carbonization chamber 3 and is fixedly connected to the distributor 1001. A trapezoidal stirring plate 302 is provided on the side of the distributor 1001 away from the heating and preheating chamber 2. The trapezoidal stirring plate 302 is placed inside the heating and carbonization chamber 3 and is sleeved and fixedly installed on the outer wall of the multi-stage coupling rotating rod 901. A sieve frame 303 is fixedly attached to the side of the trapezoidal stirring plate 302 facing away from the distributor 1001. A limiting frame 301 is fixedly connected to the side of the sieve frame 303 facing away from the trapezoidal stirring plate 302. The limiting frame 301 is placed inside the heating and carbonization chamber 3 and fixedly connected to the chamber. A trapezoidal stirring plate 304 is provided on the side of the limiting frame 301 facing the inner wall of the heating and carbonization chamber 3. This trapezoidal stirring plate 304 is fixedly attached to the bottom of the heating and carbonization chamber 3 and is sleeved and fixedly installed on the outer wall of the multi-stage coupling rotating rod 901. The combination of the distributor and the stirring and sieving structure achieves precise distribution of the activator and initial dispersion of the material.

[0033] Example 3

[0034] A second heating carbonization chamber 4 is fixedly installed on the side of the heating and preheating chamber 2 away from the heating and preheating chamber 3. A second diverter 1002 is fixedly installed on the side of the activator delivery pipe 10 facing the second heating carbonization chamber 4. The second diverter 1002 is located inside the second heating carbonization chamber 4 and is fixedly connected to the bottom end face of the first heating carbonization chamber 3. A trapezoidal stirring plate 403 is provided on the side of the second diverter 1002 away from the first heating carbonization chamber 3. The trapezoidal stirring plate 403 is placed inside the second heating carbonization chamber 4 and is sleeved and fixedly installed on the outer wall of the multi-stage coupling rotating rod 901. A screening frame 404 is fixedly attached to the side of the trapezoidal stirring plate 403 away from the second diverter 1002. A limiting frame 401 is fixedly connected to the side of the screening frame 404 away from the trapezoidal stirring plate 403. The limiting frame 401 is placed inside the second heating carbonization chamber 4 and fixedly connected to the chamber. A trapezoidal stirring plate 405 is provided on the side of the limiting frame 2 401 facing the drying and carbonization chamber 5. The trapezoidal stirring plate 405 is placed inside the heating and carbonization chamber 2 4 and is sleeved and fixedly installed on the outer wall of the multi-stage coupling rotating rod 901. The side of the trapezoidal stirring plate 405 opposite to the limiting frame 2 401 is fixedly attached to the screening frame 3 406. The side of the screening frame 3 406 opposite to the trapezoidal stirring plate 405 is fixedly connected to the limiting frame 3 402. The limiting frame 3 402 is placed inside the heating and carbonization chamber 2 4 and fixedly connected to the chamber. The superposition of the double-layer stirring and screening structure further improves the uniformity of material dispersion.

[0035] Example 4

[0036] A feeding chamber 7 is inserted into the heating and preheating chamber 2, away from the outer wall of the fan-shaped stirring plate 202. The feeding chamber 7 is inserted into and fixed to the heating and carbonizing chamber 3 on the side facing it. A second feeding chamber 8 is inserted into the heating and carbonizing chamber 3, away from the outer wall of the fan-shaped stirring plate 202. The second feeding chamber 8 is inserted into and fixed to the heating and carbonizing chamber 4 on the side facing it. A guiding screw 701 is rotatably mounted on the inner side of the feeding chamber 7, away from the inner wall of the heating and preheating chamber 2. A feeding screw 702 is mounted inside the chamber at a position parallel to the guiding screw 701. A matching small motor 703 and a small motor 704 are fixedly mounted on the outer walls of the feeding chamber 7, away from the outer walls of the guiding screw 701 and the feeding screw 702, respectively. The structure of the second feeding chamber 8 is exactly the same as that of the first feeding chamber 7, and the double helical rod design enhances the material transmission and crushing capabilities.

[0037] Example 5

[0038] A drying carbonization chamber 5 is fixedly installed on the side of the second heating carbonization chamber 4 away from the first heating carbonization chamber 3. A heating furnace 6 is fixedly installed on the side of the drying carbonization chamber 5 away from the second heating carbonization chamber 4. A frame-shaped fan-shaped stirring plate 502 is provided on the inner wall of the drying carbonization chamber 5 away from the heating furnace 6. The frame-shaped fan-shaped stirring plate 502 is sleeved and fixed on the outer wall of the multi-stage coupling rotating rod 901. A discharge pipe 501 is inserted and installed on the side of the drying carbonization chamber 5 away from the frame-shaped fan-shaped stirring plate 502. A pressure control installation pipe 201 is inserted on the side of the heating preheating chamber 2 away from the first feeding chamber 7. Pressure control installation pipes 201 of the same specification are inserted at corresponding positions in the first heating carbonization chamber 3 and the second heating carbonization chamber 4. A furnace top 1 is fixedly installed on the side of the heating preheating chamber 2 away from the drying carbonization chamber 5. A large motor 9 is fixedly installed on the furnace top 1 at the corresponding position of the multi-stage coupling rotating rod 901. A feed pipe 101 is inserted into the top end face of the furnace top 1, perpendicular to the top of the large motor 9. A mounting frame 601 is fixedly installed on one side of the heating furnace 6, perpendicular to the drying and carbonization chamber 5. The sides of the first and second feeding chambers 7 and 8 facing the mounting frame 601 are fixedly attached to the mounting frame 601. The overall support structure ensures the stability of the device operation.

[0039] Working principle of this invention:

[0040] The raw materials enter the heating and preheating chamber 2 through the feed pipe 101 of the furnace top 1. The large motor 9 drives the multi-stage coupling rotor 901 to rotate, which drives the fan-shaped stirring plate 202 in the inner frame of the chamber to stir the materials. At the same time, the chamber is heated to complete the preheating and drying. The pressure control installation pipe 201 adjusts the chamber pressure in real time to ensure stability.

[0041] After preheating, the material is conveyed through the feeding chamber 7 to the heating and carbonization chamber 3. The guiding screw 701 and the feeding screw 702 rotate in tandem to achieve rapid material transfer and break up agglomerates. The activator is precisely fed into the chamber through the activator conveying pipe 10 and the distributor 1001. The multi-stage coupling rotating rod 901 drives the trapezoidal stirring plate 302 and the second trapezoidal stirring plate 304 to rotate, which, together with the screening frame 303, disperses the material, allowing the material to fully contact the activator and complete the initial carbonization and activation.

[0042] The material enters the heating and carbonization chamber 4 through the feeding chamber 2 (8), where the distributor 2 (1002) continuously replenishes the activator. The combination of double-layer trapezoidal stirring plates and a screening frame further enhances stirring and screening, completing deep carbonization and activation. Finally, the material enters the drying and carbonization chamber 5, where the frame-shaped stirring plate 2 (502) stirs the material to ensure uniform heating. The heating furnace 6 provides heat to complete the drying process, and the finished product is discharged through the discharge pipe 501. Throughout the process, multi-stage couplings ensure synchronous transmission at each stage, and the feeding chamber and pressure control structure work together to ensure continuous and stable production.

[0043] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A carbon activation integrated furnace for the production of coal-based activated carbon, comprising a heating and preheating chamber (2) and a heating and carbonization chamber (3) disposed at the bottom end face of the heating and preheating chamber (2), characterized in that: A heating carbonization chamber 1 (3) is fixedly installed on the side away from the heating preheating chamber (2) with a heating carbonization chamber 2 (4). A drying carbonization chamber 5 is fixedly installed on the side away from the heating carbonization chamber 1 (3) with the heating carbonization chamber 2 (4). A multi-stage coupling rod (901) is rotatably installed on the side away from the drying carbonization chamber 5 with the heating preheating chamber (2). The end of the multi-stage coupling rod (901) facing the drying carbonization chamber (5) passes through the heating carbonization chamber 1 (3) and the heating carbonization chamber 2 (4), and is rotatably installed at the bottom of the drying carbonization chamber (5). The outer wall of the multi-stage coupling rod (901) is rotatably connected to the heating carbonization chamber 1 (3) and the heating carbonization chamber 2 (4). The heating preheating cavity (2) is fitted with a frame fan-shaped stirring plate (202) on the inner wall away from the heating carbonization cavity (3). The frame fan-shaped stirring plate (202) is sleeved and fixed on the outer wall of the multi-stage coupling rotating rod (901). The heating preheating cavity (2) is inserted and installed with a feeding chamber (7) on the outer wall away from the frame fan-shaped stirring plate (202). The feeding chamber (7) is inserted and installed on the side facing the heating carbonization cavity (3). The heating carbonization cavity (3) is inserted and installed with a feeding chamber (8) on the outer wall away from the frame fan-shaped stirring plate (202). The feeding chamber (8) is inserted and installed on the side facing the heating carbonization cavity (4).

2. The integrated carbon activation furnace for coal-based activated carbon production according to claim 1, characterized in that: The feeding chamber 1 (7) is rotatably fitted with a guiding screw rod (701) away from the inner wall of the heating and preheating chamber (2). The feeding screw rod (702) is fitted in the feeding chamber 1 (7) at a position parallel to the guiding screw rod (701). The feeding chamber 1 (7) is fixedly fitted with a matching small motor 1 (703) and a small motor 2 (704) at a position corresponding to the outer wall of the feeding screw rod (701) and the feeding screw rod (702).

3. The integrated carbon activation furnace for coal-based activated carbon production according to claim 1, characterized in that: A distributor (1001) is installed on the bottom end face of the heating preheating chamber (2) away from the frame fan-shaped stirring plate (202), and the distributor (1001) is placed inside the heating carbonization chamber (3) and fixedly connected to the heating preheating chamber (2). An activator delivery pipe (10) is installed on the side of the distributor (1001) perpendicular to the frame fan-shaped stirring plate (202), and the activator delivery pipe (10) is located in the heating carbonization chamber (3). One side of the outer wall of the ) is fixedly connected to the distributor (1001). The distributor (1001) is provided with a trapezoidal stirring plate (302) on the side away from the heating and preheating chamber (2). The trapezoidal stirring plate (302) is placed in the heating and carbonization chamber (3) and sleeved and fixed on the outer wall of the multi-stage coupling rotating rod (901). The trapezoidal stirring plate (302) is fixedly attached to the screening frame (303) on the side away from the distributor (1001).

4. The integrated carbon activation furnace for coal-based activated carbon production according to claim 3, characterized in that: The screening frame 1 (303) is fixedly connected to the side of the trapezoidal stirring plate 1 (302) with a limiting frame 1 (301), and the limiting frame 1 (301) is placed inside the heating carbonization cavity 1 (3) and fixedly connected to the heating carbonization cavity 1 (3). The limiting frame 1 (301) is provided with a trapezoidal stirring plate 2 (304) on the side facing the inner wall of the heating carbonization cavity 1 (3), and the trapezoidal stirring plate 2 (304) is fixedly attached to the bottom of the inner wall of the heating carbonization cavity 1 (3). The trapezoidal stirring plate 2 (304) is sleeved and fixedly installed on the outer wall of the multi-stage coupling rotating rod (901).

5. The integrated carbon activation furnace for coal-based activated carbon production according to claim 3, characterized in that: The activator delivery pipe (10) is fixedly installed with a diverter (1002) on the side facing the heating carbonization chamber (4), and the diverter (1002) is located inside the heating carbonization chamber (4) and fixedly connected to the bottom end face of the heating carbonization chamber (3). The diverter (1002) is provided with a trapezoidal stirring plate (403) on the side away from the heating carbonization chamber (3), and the trapezoidal stirring plate (403) is placed inside the heating carbonization chamber (4) and sleeved and fixedly installed on the outer wall of the multi-stage coupling rotating rod (901). The trapezoidal stirring plate (403) is fixedly attached to the side away from the diverter (1002) with a screening frame (404).

6. The integrated carbon activation furnace for coal-based activated carbon production according to claim 5, characterized in that: The screening frame 2 (404) is fixedly connected to the limiting frame 2 (401) on the side away from the trapezoidal stirring plate 3 (403), and the limiting frame 2 (401) is placed in the heating carbonization chamber 2 (4) and fixedly connected to the heating carbonization chamber 2 (4). The limiting frame 2 (401) is provided with a trapezoidal stirring plate 4 (405) on the side facing the drying carbonization chamber (5), and the trapezoidal stirring plate 4 (405) is placed in the heating carbonization chamber 2 (4) and sleeved and fixed on the outer wall of the multi-stage coupling rotating rod (901).

7. The integrated carbon activation furnace for coal-based activated carbon production according to claim 6, characterized in that: The trapezoidal stirring plate four (405) is fixedly attached to the side of the limiting frame two (401) with the screening frame three (406) fixedly connected to the side of the screening frame three (406) away from the trapezoidal stirring plate four (405), and the limiting frame three (402) is placed in the heating carbonization cavity two (4) and fixedly connected to the heating carbonization cavity two (4).

8. The integrated carbon activation furnace for coal-based activated carbon production according to claim 1, characterized in that: A heating furnace (6) is fixedly installed on the side of the drying and carbonization chamber (5) away from the heating and carbonization chamber (4). The inner wall of the drying and carbonization chamber (5) away from the heating furnace (6) is provided with a frame-shaped stirring plate (502), and the frame-shaped stirring plate (502) is sleeved and fixed on the outer wall of the multi-stage coupling rotating rod (901). A discharge pipe (501) is inserted and installed on the side of the drying and carbonization chamber (5) away from the frame-shaped stirring plate (502).

9. The integrated carbon activation furnace for coal-based activated carbon production according to claim 1, characterized in that: A pressure control installation pipe (201) is inserted on the side of the heating and preheating chamber (2) away from the first feeding chamber (7), and pressure control installation pipes (201) are inserted at corresponding positions on the first heating and carbonization chamber (3) and the second heating and carbonization chamber (4). A furnace top (1) is fixedly installed on the side of the heating and preheating chamber (2) away from the drying and carbonization chamber (5). A suitable large motor (9) is fixedly installed on the furnace top (1) at the corresponding position of the multi-stage coupling rotating rod (901). A feed pipe (101) is inserted on the top end face of the furnace top (1) perpendicular to the large motor (9).

10. A carbon activation integrated furnace for coal-based activated carbon production according to claim 8, characterized in that: The heating furnace (6) is fixedly installed with an installation frame (601) on one side perpendicular to the drying and carbonization chamber (5). The first feeding chamber (7) and the second feeding chamber (8) are both fixedly attached to the installation frame (601) on the side facing the installation frame (601).

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