Secondary activation furnace for activated carbon production

Abstract

The utility model discloses a two-stage activation furnace for activated carbon production, which comprises an activation furnace, a gear ring and a driving seat, and further comprises a pre-drying structure comprising an inclined groove seat, a heater and a plurality of adjustable bulk material racks, a first adjustable bulk material rack counted from top to bottom is provided with a pressure sensor, and a second adjustable bulk material rack counted from top to bottom is provided with a pressure sensor; the multiple adjustable bulk material frames are driven by an adjusting motor, and the adjusting motor is electrically connected with the pressure sensor. The self-adaptive feeding structure comprises a discharging frame communicated with the pre-drying structure, a filter plate is movably arranged in the middle of the discharging frame, moving parts are fixedly connected to the two sides of the filter plate, the moving parts are movably connected with the inner wall of the discharging frame, the tops of the moving parts extend and are fixed into an interlayer of the discharging frame, and a pressurizing part is arranged at the lower end of the filter plate. The pressurizing part is electrically connected with the infrared sensor at the position of the feeding port of the discharging frame, the pressurizing part is opened and closed according to the detection quantity of the infrared sensor, and no matter a small amount or a large amount of raw materials can be processed at a uniform speed.

Description

Technical Field

[0001] The utility model relates to an activated carbon production device, in particular to a secondary activation furnace for activated carbon production. Background Art

[0002] Activated carbon is prepared by pyrolysis and activation of carbon-containing raw materials such as wood, coal, and petroleum coke. Activated carbon activation is one of the most important steps in the production of activated carbon. Activated carbon activation is generally divided into three main processes according to the temperature change in the thermal decomposition process: drying process, pre-carbonization process, and carbonization process. Different temperatures are applied in different action stages to precipitate different substances in the activated carbon and increase the fixed carbon content of the charcoal.

[0003] In the carbonization process of charcoal, the pre-carbonized activated carbon needs to be introduced into the secondary activation furnace. There are two problems with the existing methods of using conveyor belts or airflows for transmission: 1. Whether it is air feeding or conveyor belt feeding, due to the light weight of the activated carbon, it is difficult to control the feeding amount. When the feeding amount is large, it will block at the filter screen position of the feeding structure, thus affecting subsequent feeding and causing the raw materials to accumulate at the feeding position; 2. When a large amount of raw materials are fed, the stacked raw materials are prone to stacking up and down, resulting in too small a contact area with the raw materials during pre-drying, uneven drying of the raw materials, and difficulty in synchronizing the carbonization time in the formal activation stage, making it difficult to obtain activated carbon of the same quality.

[0004] Therefore, this case aims to provide a secondary activation furnace for activated carbon production, which can perform jitter filtration with corresponding intensity on the raw materials according to the incoming amount of the raw materials during the feeding stage, enabling the raw materials to be quickly screened and enter the pre-drying device, and can be transmitted at different speeds according to the amount of incoming raw materials in the pre-drying device, allowing the raw materials to repeatedly contact the hot air, and enabling both small and large amounts of raw materials to be processed at a uniform speed. Summary of the Utility Model

[0005] The utility model provides a secondary activation furnace for activated carbon production, which can effectively solve the above problems.

[0006] The utility model is implemented as follows:

[0007] A secondary activation furnace for activated carbon production includes:

[0008] An inclined activation furnace, several gear rings are fixedly arranged on the outer side of the activation furnace, a driving seat meshing with the gear rings is arranged at the bottom of the activation furnace, the inside of the activation furnace is hollow, and both sides of the activation furnace are respectively a feeding end and a discharging end, and further includes:

[0009] Pre-drying structure, including an inclined trough seat connected to the feeding end of the activation furnace. Several heaters are arranged at the top of the inclined trough seat, and several adjustable material dispersing racks are arranged at the bottom of the inclined trough seat. A pressure sensor is arranged on the first adjustable material dispersing rack counted from top to bottom. Several adjustable material dispersing racks are all driven by an adjusting motor, and the adjusting motor is electrically connected to the pressure sensor. The included angle between the adjustable material dispersing rack and the inner bottom of the inclined trough seat is adjusted by the adjusting motor according to the data of the pressure sensor.

[0010] Adaptive feeding structure, including a feeding frame communicated with the pre-drying structure. A filter plate is movably arranged in the middle of the feeding frame. Moving parts are fixedly connected to both sides of the filter plate. The moving parts are movably connected to the inner wall of the feeding frame and the top extends and is fixed in the interlayer of the feeding frame. A pressurizing part is arranged at the lower end of the filter plate. The pressurizing part is electrically connected to an infrared sensor at the feeding port position of the feeding frame, and the pressurizing part opens and closes according to the detection amount of the infrared sensor.

[0011] As a further improvement, the adjustable material dispersing rack includes a swinging shaft rod connected to the adjusting motor. The swinging shaft rod is closely attached to the bottom inside the inclined trough seat. A swinging plate is fixed on the swinging shaft rod. Several through slots are arranged on the inner side of the swinging plate, and a blocking structure for adjusting the opening degree of the through slots is arranged on the back side of the swinging plate.

[0012] As a further improvement, the blocking structure includes a push rod motor fixedly connected to the back of the swinging plate. A blocking plate is connected to the output end of the push rod motor. The blocking plate is provided with a blocking slot opposite to the through slot.

[0013] As a further improvement, several bouncing columns are arranged on the front of the swinging plate. The bouncing columns and the through slots are arranged alternately. The bouncing column includes a fixed seat fixedly connected to the front of the swinging plate. A convex block is movably arranged in the fixed seat. The inner side of the convex block is connected to the bottom surface of the fixed seat through a compression spring.

[0014] As a further improvement, the swinging angle of the swinging plate is -25° to 60°.

[0015] As a further improvement, the moving part includes connecting buckles fixedly connected to both sides of the filter plate. An extension rod is arranged at the top of the connecting buckle. The extension rod extends into an elastic frame in the interlayer, and the elastic frame reciprocates up and down in the interlayer.

[0016] As a further improvement, the extension rod is a U-shaped structure with an opening downward.

[0017] As a further improvement, six connecting buckles are provided in total. Every three connecting buckles are in a group and are respectively arranged on the side of the filter plate.

[0018] As a further improvement, the elastic frame includes a movable column connected to the bottom of the extension rod. A reset spring is connected to the bottom of the movable column, and the bottom of the reset spring is connected to a pressing block, which is fixedly connected to the bottom inside the sandwich layer.

[0019] As a further improvement, the pressure increasing member includes an air inlet chamber provided at the lower end inside the blanking frame. The air inlet chamber is within the coverage area of the projection of the connecting buckle. The air inlet chamber is connected to an elastic airbag, and the elastic airbag is attached to the lower side of the filter plate after it descends.

[0020] The beneficial effects of the present utility model are as follows:

[0021] In the existing activated carbon feeding equipment, activated carbon is often directly fed into the activation furnace. A large amount of activated carbon with preliminary waste heat directly accumulates in the secondary activation furnace, which extremely affects the effect of secondary activation. Therefore, through the self-adaptive feeding structure provided in the present utility model, first, a filter plate is provided at the position of the blanking frame to block a large amount of raw materials falling at the same time. At the position of the filter plate, a movable member that can move up and down is provided. The movable member can drive the entire filter plate to move downward under the weight of the raw materials, and the pressure increasing member can continuously deform and push the filter plate upward, so that the particles on the filter plate continuously shake and are evenly output downward. Furthermore, while the filter plate blocks a large amount of raw materials from surging into the activation furnace in a short time, it can also evenly feed the materials and adapt to different feeding speeds. When feeding a large amount of materials, the deformation amount and change speed of the pressure increasing member are both accelerated, so that the adaptability of the entire feeding structure is higher.

[0022] The entire movable member can drive the filter plate to move. When there is less material, the material will directly pass through the filter plate and be output downward. When there is more material, it will press the filter plate downward, causing the connecting buckle and the extension rod to move downward, so that the elastic frame contracts. After a part of the material has been discharged, due to the decrease in pressure, it rebounds upward, thus achieving the effect of moving up and down to shake the material.

[0023] When shaking the material, the elastic frame expands and contracts to shake the material. Specifically, the downward movement of the extension rod drives the downward movement of the movable column, and then drives the compression of the reset spring. After the pressure decreases, the reset spring will rebound, thus realizing shaking the material.

[0024] However, if only shaking the material through the reset spring, the effect is very limited. Therefore, the present utility model also improves the shaking effect by providing a pressure increasing member and using the change in the volume of the pressure increasing member itself to change the position of the filter plate.

[0025] After the raw materials pass through speed adjustment, they will enter the pre-drying structure. In the traditional pre-drying step, a slope is set, and the raw materials gradually enter the activation furnace by self-downward movement to achieve the effect of pre-drying. However, in this case, when a large amount of raw materials are fed, the downward speed of the raw materials will not change with the large influx of raw materials, resulting in a poor pre-drying effect for the bottom raw materials. Therefore, through the additional pre-drying structure of the present utility model, the raw materials falling into the inclined trough seat can fall on the adjustable material spreading rack. The adjustable material spreading rack is driven by an adjustment motor. Thus, when the pressure sensor detects a large pressure, the adjustable material spreading rack swings downward to throw the materials, so that the bottom raw materials can be exposed, and when the pressure is small, it collects the materials upward, increasing the contact time between the raw materials and hot air and improving the pre-drying effect.

[0026] During the adjustment of the adjustable material spreading rack, it relies on the rotation of the adjustment motor. When the adjustment motor rotates, it drives the swing shaft rod to rotate, and then the swing plate carrying the raw materials rotates. In fact, through slots are provided on the swing plate, which can allow a small amount of activated carbon to pass through. However, in the case of a large blockage, the position of the raw materials can be changed by swinging the swing plate, so that the raw materials can move downward quickly. When a large amount of raw materials accumulate, the raw materials can even directly move downward.

[0027] In the case of a small amount of raw materials, they will directly fall through the through slots on the swing plate, and the retention effect is poor. Therefore, the present utility model also provides a blocking structure on the back of the swing plate. The position of the blocking plate can be adjusted through the push rod motor in the blocking structure, so that the sealing slot of the blocking plate and the through slot of the swing plate form a certain opening degree. When a small amount of raw materials are fed, the opening degree can be made smaller, so that the raw materials can be pre-dried for a longer time.

[0028] On the swing plate, there are jumping columns that can jump. When there is a large amount of materials, the jumping columns can be pressed down, and when there is a small amount of materials, due to the decrease in pressure, they will deform to a certain extent and then shake the materials forward, thus preventing the materials from piling up in place. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0030] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0031] Figure 2 is an internal structural schematic diagram of the present utility model.

[0032] Figure 3 It is a schematic structural diagram of the pre-drying structure and the adaptive feeding structure of the present utility model.

[0033] Figure 4 It is a right-view structural diagram of the adaptive feeding structure of the present utility model.

[0034] Figure 5 It is a schematic structural diagram of the pre-drying structure of the present utility model.

[0035] Figure 6 It is a schematic structural diagram of the adjustable bulk material rack of the present utility model. Specific embodiments

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the protection scope of the present utility model. Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the protection scope of the present utility model.

[0037] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0038] Refer to Figures 1 to 6As shown in the figure, a secondary activation furnace for the production of activated carbon includes: an inclined activation furnace 10, several gear rings 11 are fixedly arranged on the outer side of the activation furnace 10, a driving seat 20 meshing with the gear rings 11 is arranged at the bottom of the activation furnace 10, the interior of the activation furnace 10 is hollow, the two sides of the activation furnace 10 are respectively a feeding end and a discharging end, and further includes: a pre-drying structure 30, including an inclined trough seat 31 connected to the feeding end of the activation furnace 10, several heaters 32 are arranged at the top of the inclined trough seat 31, several adjustable material spreading frames 33 are arranged at the bottom of the inclined trough seat 31, a pressure sensor is arranged on the first adjustable material spreading frame 33 counted from top to bottom, several adjustable material spreading frames 33 are all driven by an adjusting motor 34, the adjusting motor 34 is electrically connected to the pressure sensor, and the included angle between the adjustable material spreading frame 33 and the inner bottom of the inclined trough seat 31 is adjusted by the adjusting motor 34 according to the data of the pressure sensor; an adaptive feeding structure 40, including a feeding frame 41 communicated with the pre-drying structure 30, a filter plate 42 is movably arranged in the middle of the feeding frame 41, moving parts 43 are fixedly connected to both sides of the filter plate 42, the moving parts 43 are movably connected to the inner wall of the feeding frame 41 and the top extends and is fixed into the interlayer 44 of the feeding frame 41, a pressure increasing part 45 is arranged at the lower end of the filter plate 42, the pressure increasing part 45 is electrically connected to an infrared sensor at the feeding port position of the feeding frame 41, and the pressure increasing part 45 is opened and closed according to the detection amount of the infrared sensor.

[0039] In this embodiment, the activated carbon is dried through the pre-drying structure 30 and then input into the activation furnace 10. Since the gear ring 11 outside the activation furnace 10 meshes with the driving seat 20, the activated carbon will gradually move towards the inner side of the activation furnace 10 under the slow rotation of the activation furnace 10, and the activated carbon after being activated by the activation furnace 10 enters the next step.

[0040] In the existing feeding equipment for activated carbon, the activated carbon is often directly fed into the activation furnace. A large amount of activated carbon with preliminary waste heat is directly stacked in the secondary activation furnace, which extremely affects the effect of secondary activation. Therefore, in the present utility model, an adaptive feeding structure 40 is set. First, a filter plate 42 is arranged at the position of the feeding frame 41 to block a large amount of raw materials falling at the same time. At the position of the filter plate 42, a movable part 43 that can move up and down is arranged. The movable part 43 can drive the entire filter plate 42 to move downward under the weight of the raw materials, and the pressure increasing part 45 can also be continuously deformed to push the filter plate 42 upward, so that the particles on the filter plate 42 keep shaking and are continuously and evenly output downward. Furthermore, while the filter plate 42 blocks a large amount of raw materials from pouring into the activation furnace in a short time, it can also feed materials evenly and can adapt to different feeding speeds. When feeding a large amount of materials, the deformation amount and change speed of the pressure increasing part 45 are both accelerated, so that the adaptability of the entire feeding structure is higher.

[0041] The entire moving member can drive the filter plate 42 to move. Specifically, the moving member 43 includes connection buckles 431 fixed on both sides of the filter plate 42. At the top of the connection buckle 431, there is an extension rod 432. The extension rod 432 extends into an elastic frame 433 inside the sandwich layer 44. The elastic frame 433 reciprocates up and down inside the sandwich layer 44. When the material is less, the material will directly pass through the filter plate 42 and be output downward. When the material is more, the filter plate 42 will be pressed downward, causing the connection buckle 431 and the extension rod 432 to move downward, thereby causing the elastic frame 433 to contract. After a part of the material has been discharged, due to the decrease in pressure, it will rebound upward, thus achieving the effect of shaking the material up and down.

[0042] In order to facilitate the accommodation of the extension rod 432 in the sandwich layer 44 and prevent activated carbon powder from entering the entire moving member 43, the extension rod 432 is a U-shaped structure with an opening downward and is arranged externally, so as to significantly reduce the mutual jamming phenomenon between the activated carbon and the moving structure.

[0043] To improve the stability of the movement of the filter plate 42, six connection buckles 431 are provided. Every three connection buckles 431 form a group and are respectively arranged on the lateral sides of the filter plate 42.

[0044] When shaking the material, the material is shaken by the expansion and contraction of the elastic frame 433. In this embodiment, the elastic frame 433 includes a movable column 4331 connected to the bottom of the extension rod 432. At the bottom of the movable column 4331, there is a return spring 4332 connected. The bottom of the return spring 4332 is connected to a pressing block 4333. The pressing block 4333 is fixed to the bottom inside the sandwich layer 44. Specifically, when the extension rod 432 moves downward, it drives the movable column 4331 to move downward, thereby driving the compression of the return spring 4332. After the pressure decreases, the return spring 4332 will rebound, thus realizing the shaking of the material.

[0045] However, if only shaking the material through the return spring 4332, the effect is very limited. Therefore, the present utility model also has a pressure boosting member 45. The pressure boosting member 45 includes an air intake chamber 451 arranged at the lower inner end position of the blanking frame 41. The air intake chamber 451 is within the coverage range of the projection position of the connection buckle 431. The air intake chamber 451 is connected to an elastic airbag 452. The elastic airbag 452 is attached to the lower side of the lowered filter plate 42. By changing the volume of the pressure boosting member 45 itself, the position of the filter plate 42 is changed, thereby improving the effect of shaking the material. Specifically, an external air inflation structure is used to inflate the air intake chamber 451 and inflate the elastic airbag 452. Its inflation frequency is intermittent input and output, so as to achieve the effect of reciprocally lifting or lowering the filter plate 42.

[0046] After the raw materials pass through speed regulation, they will enter the pre-drying structure 30. In traditional pre-drying steps, a ramp is set, and the raw materials gradually enter the activation furnace by self-downward movement to achieve the pre-drying effect. However, in this case, when a large amount of materials are fed, the downward speed of the raw materials will not change with the large influx of raw materials, resulting in a poor pre-drying effect for the bottom raw materials. Therefore, with the additional pre-drying structure 30 of the present utility model, the raw materials falling into the inclined trough seat 31 can fall onto the adjustable material spreading rack 33. The adjustable material spreading rack 33 is driven by an adjustment motor 34. Thus, when the pressure sensor detects a large pressure, the adjustable material spreading rack 33 swings downward to discharge materials, enabling the bottom raw materials to be exposed, and when the pressure is small, it collects materials upward, increasing the contact time between the raw materials and hot air and improving the pre-drying effect.

[0047] During the adjustment process of the adjustable material spreading rack 33, it relies on the rotation of the adjustment motor 34. Specifically, the adjustable material spreading rack 33 includes a swing shaft rod 331 connected to the adjustment motor 34. The swing shaft rod 331 is closely attached to the bottom inside the inclined trough seat 31. A swing plate 332 is fixed on the swing shaft rod 331. A number of through slots are provided inside the swing plate 332. A blocking structure 333 for adjusting the opening degree of the through slots is provided on the back side of the swing plate 332. When the adjustment motor 34 rotates, it drives the swing shaft rod 331 to rotate, and then the swing plate 332 carrying the raw materials rotates. In fact, through slots are opened on the swing plate 332, allowing a small amount of activated carbon to pass through. However, in the case of a large blockage, the position of the raw materials can be changed by swinging the swing plate 332, enabling the raw materials to move downward quickly. In the case of a large accumulation of raw materials, the raw materials can even directly move downward.

[0048] In the case of a small amount of raw materials, they will directly fall through the through slots on the swing plate 332, and the retention effect is poor. Therefore, the blocking structure 333 of the present utility model includes a push rod motor 3331 fixedly connected to the back of the swing plate 332. A blocking plate 3332 is connected to the output end of the push rod motor 3331. The blocking plate 3332 is provided with a blocking slot opposite to the through slot. By providing the blocking structure 333 on the back of the swing plate 332, the position of the blocking plate 3332 can be adjusted by the push rod motor 3331 in the blocking structure 333, so that the blocking slot of the blocking plate 3332 and the through slot of the swing plate 332 form a certain opening degree. When a small amount of materials are fed, the opening degree can be made smaller, enabling the raw materials to be pre-dried for a longer time.

[0049] On the swing plate 332, there are provided bouncing columns 334 that can bounce. A number of bouncing columns 334 are provided on the front surface of the swing plate 332. The bouncing columns 334 and the through grooves are arranged alternately. The bouncing column 334 includes a fixed seat 3341 fixedly connected to the front surface of the swing plate 332. A bump 33,42 is movably arranged in the fixed seat 3341. The inner side of the bump 3342 is connected to the bottom surface of the fixed seat 3341 through a compression spring 3343. The bouncing column 334 can be pressed when there is a lot of material. When there is less material, due to the decrease in pressure, it will undergo a certain deformation by itself, and then shake the material forward, thus avoiding the material from piling up in place. The fitting between the bump 3342 and the fixed seat 3341 can prevent activated carbon from falling into the gap between the two.

[0050] In order to optimize the effect of the swing plate 332, the swing angle of the swing plate 332 is -25° to 60°.

[0051] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A secondary activation furnace for the production of activated carbon, characterized in that, Including: An inclined activation furnace (10), several gear rings (11) are fixedly arranged on the outer side of the activation furnace (10), a driving seat (20) meshing with the gear rings (11) is arranged at the bottom of the activation furnace (10), the inside of the activation furnace (10) is hollow, the two sides of the activation furnace (10) are respectively a feeding end and a discharging end, and further including: A pre-drying structure (30), including an inclined trough seat (31) connected to the feeding end of the activation furnace (10), several heaters (32) are arranged at the top of the inclined trough seat (31), several adjustable material spreading frames (33) are arranged at the bottom of the inclined trough seat (31), a pressure sensor is arranged on the first adjustable material spreading frame (33) counted from top to bottom, several adjustable material spreading frames (33) are all driven by an adjusting motor (34), the adjusting motor (34) is electrically connected to the pressure sensor, and the included angle between the adjustable material spreading frame (33) and the inner bottom of the inclined trough seat (31) is adjusted by the adjusting motor (34) according to the data of the pressure sensor; An adaptive feeding structure (40), including a blanking frame (41) communicated with the pre-drying structure (30), a filter plate (42) is movably arranged in the middle of the blanking frame (41), a moving part (43) is fixedly connected to both sides of the filter plate (42), the moving part (43) is movably connected to the inner wall of the blanking frame (41) and the top extends and is fixed in the interlayer (44) of the blanking frame (41), a pressurizing part (45) is arranged at the lower end of the filter plate (42), the pressurizing part (45) is electrically connected to an infrared sensor at the feeding port position of the blanking frame (41), and the pressurizing part (45) is opened and closed according to the detection amount of the infrared sensor.

2. The secondary activation furnace for activated carbon production according to claim 1, wherein The adjustable material spreading frame (33) includes a swinging shaft rod (331) connected to the adjusting motor (34), the swinging shaft rod (331) is closely attached to the inner bottom of the inclined trough seat (31), a swinging plate (332) is fixed on the swinging shaft rod (331), several through grooves are arranged on the inner side of the swinging plate (332), and a blocking structure (333) for adjusting the opening degree of the through grooves is arranged on the back side of the swinging plate (332).

3. The secondary activation furnace for activated carbon production according to claim 2, characterized in that, The blocking structure (333) includes a push rod motor (3331) fixedly connected to the back of the swinging plate (332), a blocking plate (3332) is connected to the output end of the push rod motor (3331), and a blocking groove opposite to the through groove is arranged on the blocking plate (3332).

4. The secondary activation furnace for activated carbon production according to claim 3, characterized in that, Several bouncing columns (334) are arranged on the front of the swinging plate (332), the bouncing columns (334) and the through grooves are arranged alternately, the bouncing column (334) includes a fixed seat (3341) fixedly connected to the front of the swinging plate (332), a convex block (3342) is movably arranged in the fixed seat (3341), and the inner side of the convex block (3342) is connected to the bottom surface of the fixed seat (3341) through a compression spring (3343).

5. The secondary activation furnace for activated carbon production according to claim 4, characterized in that, The swinging angle of the swinging plate (332) is -25° to 60°.

6. The secondary activation furnace for activated carbon production according to claim 1, wherein, The moving member (43) includes connecting buckles (431) fixed to both sides of the filter plate (42). A stretching rod (432) is provided at the top of the connecting buckle (431). The stretching rod (432) extends into an elastic frame (433) within the interlayer (44), and the elastic frame (433) reciprocates up and down within the interlayer (44).

7. The secondary activation furnace for activated carbon production according to claim 6, wherein, The stretching rod (432) has a U-shaped structure with an opening facing downwards.

8. The secondary activation furnace for activated carbon production according to claim 6, characterized in that, Six connecting buckles (431) are provided. Every three connecting buckles (431) form a group and are respectively arranged on the lateral sides of the filter plate (42).

9. The secondary activation furnace for activated carbon production according to claim 7, characterized in that, The elastic frame (433) includes a movable column (4331) connected to the bottom of the stretching rod (432). A return spring (4332) is connected to the bottom of the movable column (4331). The bottom of the return spring (4332) is connected to a pressing block (4333), and the pressing block (4333) is fixed to the bottom inside the interlayer (44).

10. The secondary activation furnace for activated carbon production according to claim 1, characterized in that, The pressurizing member (45) includes an air inlet chamber (451) provided at the lower inner end position of the blanking frame (41). The air inlet chamber (451) is within the coverage range of the projection position of the connecting buckle (431). The air inlet chamber (451) is connected to an elastic airbag (452), and the elastic airbag (452) is attached to the lower side of the lowered filter plate (42).

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