Raw material feeding device with pre-drying function for activated carbon production

Abstract

The utility model discloses a raw material feeding device with a pre-drying function for activated carbon production, which is connected with an inclined activation furnace, and further comprises a pre-drying structure comprising an inclined groove seat connected with a feeding end of the activation furnace, a plurality of heaters arranged at the top of the inclined groove seat, and a plurality of adjustable bulk material frames arranged at the bottom of the inclined groove seat, a pressure sensor is arranged on the first adjustable bulk material frame counted from top to bottom, the multiple adjustable bulk material frames are driven by an adjusting motor, the adjusting motor is electrically connected with the pressure sensor, and the included angle between the adjustable bulk material frames and the inner bottom of the inclined groove base is adjusted through the adjusting motor according to data of the pressure sensor. According to the pre-drying device, the raw materials can be conveyed at different speeds according to the quantity of the raw materials entering the pre-drying device, so that the raw materials can be repeatedly contacted with hot air, and a small amount or a large amount of raw materials can be treated at a uniform speed.

Description

Technical Field

[0001] The utility model relates to an auxiliary device for activated carbon production, in particular to a raw material feeding device for activated carbon production with a pre-drying function. Background Art

[0002] Activated carbon is prepared by pyrolysis and activation of carbon-containing raw materials such as wood, coal, and petroleum coke. The activation of activated carbon is one of the most important steps in the production of activated carbon. The activation of activated carbon 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 a secondary activation furnace. However, there are certain problems with the existing methods of using conveyor belts or pneumatic conveyors: when a large amount of raw materials are fed, the stacked raw materials are prone to the phenomenon of stacking up and down. When pre-drying the raw materials, the contact area with the raw materials is too small, resulting in uneven drying of the raw materials during pre-drying. It is also difficult to synchronize the carbonization time in the formal activation stage, and it is difficult to obtain activated carbon with the same quality. Summary of the Utility Model

[0004] The utility model provides a raw material feeding device for activated carbon production with a pre-drying function. In the pre-drying device, the transmission speed can be adjusted according to the amount of raw materials entering, so that the raw materials can repeatedly contact with hot air. Whether it is a small amount or a large amount of raw materials, they can be processed at a uniform speed, effectively solving the above problems.

[0005] The utility model is realized as follows:

[0006] A raw material feeding device for activated carbon production with a pre-drying function is connected to an inclined activation furnace. A plurality of gear rings are fixedly arranged on the outer side of the activation furnace, and 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 the two sides of the activation furnace are respectively a feeding end and a discharging end. It further includes:

[0007] A pre-drying structure, including an inclined trough seat connected to the feeding end of the activation furnace. A plurality of heaters are arranged at the top of the inclined trough seat, and a plurality of adjustable material spreading frames are arranged at the bottom of the inclined trough seat. A pressure sensor is arranged on the first adjustable material spreading frame counted from top to bottom. A plurality of adjustable material spreading frames 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 spreading frame and the inner bottom of the inclined trough seat is adjusted by the adjusting motor according to the data of the pressure sensor.

[0008] As a further improvement, the adjustable bulk material rack includes a swing shaft rod connected to an adjustment motor. The swing shaft rod is closely attached to the bottom inside the inclined chute seat. A swing plate is fixed on the swing shaft rod. A plurality of through slots are provided inside the swing plate, and a blocking structure for adjusting the opening degree of the through slots is provided on the back side of the swing plate.

[0009] As a further improvement, the blocking structure includes a push rod motor fixedly connected to the back of the swing plate. A baffle plate is connected to the output end of the push rod motor. The baffle plate is provided with a blocking slot opposite to the through slot.

[0010] As a further improvement, a plurality of jumping columns are provided on the front surface of the swing plate, and the jumping columns and the through slots are arranged alternately.

[0011] As a further improvement, the jumping column includes a fixed seat fixedly connected to the front surface of the swing plate. A convex block is movably arranged in the fixed seat, and the inner side of the convex block is connected to the bottom surface of the fixed seat through a compression spring.

[0012] As a further improvement, the swing angle of the swing plate is -25° to 60°.

[0013] The beneficial effects of the present utility model are as follows:

[0014] After the raw materials pass through the feeding structure, they will enter the pre-drying structure. In the traditional pre-drying step, a slope is provided, and the raw materials gradually enter the activation furnace by self-downward movement, so as to achieve the pre-drying effect. 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 amount of incoming raw materials, resulting in a poor pre-drying effect for the bottom raw materials. Therefore, through the added pre-drying structure of the present utility model, the raw materials falling into the inclined chute seat can fall on the adjustable bulk material rack. The adjustable bulk material rack is driven by an adjustment motor. Thus, when the pressure sensor detects a large pressure, the adjustable bulk material rack swings downward to discharge 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 the hot air and improving the pre-drying effect.

[0015] During the adjustment of the adjustable bulk material 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. In the case of a large accumulation of raw materials, the raw materials can even directly move downward.

[0016] 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 by the push rod motor in the blocking structure, so that the sealing groove of the blocking plate and the through groove of the swing plate form a certain opening degree. When feeding a small amount of materials, the opening degree can be made smaller, so that the raw materials can be pre-dried for a longer time.

[0017] 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. 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

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0020] Figure 2 is an internal structural schematic diagram of the present utility model.

[0021] Figure 3 is a structural schematic diagram of the pre-drying structure and the adaptive feeding structure of the present utility model.

[0022] Figure 4 is a right-view structural schematic diagram of the adaptive feeding structure of the present utility model.

[0023] Figure 5 is a structural schematic diagram of the pre-drying structure of the present utility model.

[0024] Figure 6 is a structural schematic diagram of the adjustable material spreading rack of the present utility model. Detailed Embodiments

[0025] 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 creative efforts belong to the scope of protection 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 the 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 creative efforts belong to the scope of protection of the present utility model.

[0026] 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, the 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" means two or more unless otherwise specifically defined.

[0027] Refer to Figures 1 to 6 As shown, it is connected to an inclined activation furnace 10. A plurality of gear rings 11 are fixedly provided on the outer side of the activation furnace 10. A drive seat 20 meshing with the gear rings 11 is provided 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 feed end and a discharge end. It further includes: a pre-drying structure 30, including an inclined trough seat 31 connected to the feed end of the activation furnace 10. A plurality of heaters 32 are provided at the top of the inclined trough seat 31. A plurality of adjustable material spreading racks 33 are provided at the bottom of the inclined trough seat 31. A pressure sensor is provided on the first adjustable material spreading rack 33 counted from top to bottom. A plurality of adjustable material spreading racks 33 are all driven by an adjustment motor 34. The adjustment motor 34 is electrically connected to the pressure sensor. The included angle between the adjustable material spreading rack 33 and the inner bottom of the inclined trough seat 31 is adjusted by the adjustment motor 34 according to the data of the pressure sensor.

[0028] 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 drive 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. The activated carbon after being activated by the activation furnace 10 then enters the next step.

[0029] In 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, in the present utility model, through the adaptive feeding structure 40 provided, first, a filter plate 42 is arranged at the position of the feeding frame 41. The filter plate 42 is used to block a large amount of raw materials falling at the same time. At the position of the filter plate 42, a movable member 43 that can move up and down is arranged. The movable member 43 can drive the entire filter plate 42 to move downward under the weight of the raw materials. Moreover, the pressurizing member 45 can continuously deform and push the filter plate 42 upward, so that the particles on the filter plate 42 continuously vibrate and are evenly output downward. Furthermore, while the filter plate 42 blocks a large amount of raw materials from surging into the activation furnace in a short time, it can evenly feed the materials and can adapt to different feeding speeds. When feeding a large amount of materials, the deformation amount and change speed of the pressurizing member 45 are both accelerated, so that the adaptability of the entire feeding structure is higher.

[0030] The entire movable member can drive the filter plate 42 to move. Specifically, the movable member 43 includes connecting buckles 431 fixedly connected to both sides of the filter plate 42. At the top of the connecting buckle 431, an extension rod 432 is arranged. The extension rod 432 extends into an elastic frame 433 in the interlayer 44. The elastic frame 433 reciprocates up and down in the interlayer 44. When the amount of materials is small, the materials will directly pass through the filter plate 42 and be output downward. When the amount of materials is large, the filter plate 42 will be pressed downward, causing the connecting buckle 431 and the extension rod 432 to move downward, so that the elastic frame 433 contracts. After a part of the materials are discharged, due to the reduction of pressure, it rebounds upward, thus achieving the effect of moving up and down to vibrate the materials.

[0031] In order to facilitate accommodating the extension rod 432 in the interlayer 44 and prevent activated carbon powder from entering the entire movable member 43, the extension rod 432 is a U-shaped structure with an opening downward and is adopted in an external manner, so that the mutual jamming phenomenon between the activated carbon and the moving structure can be greatly reduced.

[0032] In order to improve the stability of the movement of the filter plate 42, six connecting buckles 431 are provided in total. Every three connecting buckles 431 are a group and are respectively arranged on the lateral sides of the filter plate 42.

[0033] When vibrating the materials, the vibration is carried out 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. 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 fixedly connected 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 rebounds, thereby realizing the vibration of the materials.

[0034] However, if only vibrating the materials through the return spring 4332, the effect is very limited. Therefore, the present utility model also uses a pressurizing member 45. The pressurizing member 45 includes an air inlet chamber 451 provided at the lower inner end of the blanking frame 41. The air inlet chamber 451 is within the coverage of the projection position of the connection 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 filter plate 42 after it descends. By changing the volume of the pressurizing member 45 itself, the position of the filter plate 42 is changed, thereby improving the vibration effect of the materials. Specifically, an external air inflation structure is used to inflate the air inlet 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.

[0035] After the feeding speed of the raw materials is adjusted, they will enter the pre-drying structure 30. In the traditional pre-drying step, a slope is set, and the raw materials gradually enter the activation furnace by self-downward movement, so as 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 amount of incoming raw materials, resulting in a poor pre-drying effect for the bottom-layer raw materials. Therefore, the present utility model can make the raw materials falling into the inclined trough seat 31 fall on the adjustable material spreading rack 33 through the additional pre-drying structure 30. The adjustable material spreading rack 33 is driven by an adjustment motor 34. When the pressure sensor detects a large pressure, the adjustable material spreading rack 33 swings downward to throw the materials, so that the bottom-layer 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 the hot air and improving the pre-drying effect.

[0036] During the adjustment of the adjustable bulk material rack 33, it relies on the rotation of the adjustment motor 34. Specifically, the adjustable bulk material 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 chute seat 31. A swing plate 332 is fixed on the swing shaft rod 331. Several through slots are provided inside the swing plate 332. A blocking structure 333 for adjusting the opening degree of the through slots is arranged 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 makes the swing plate 332 carrying the raw materials rotate. 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, so that the raw materials can quickly move downward. In the case of a large accumulation of raw materials, the raw materials can even directly move downward.

[0037] 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 groove opposite to the through slot. By arranging 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 groove of the blocking plate 3332 and the through slot of the swing plate 332 form a certain opening degree. When feeding a small amount, the opening degree can be made smaller, so that the raw materials can be pre-dried for a longer time.

[0038] On the swing plate 332, there are jumping columns 334 that can jump. Several jumping columns 334 are provided on the front of the swing plate 332. The jumping columns 334 and the through slots are arranged alternately. The jumping column 334 includes a fixed seat 3341 fixedly connected to the front of the swing plate 332. A convex block 3342 is movably arranged in the fixed seat 3341. The inner side of the convex block 3342 is connected to the bottom surface of the fixed seat 3341 through a compression spring 3343. The jumping column 334 can be pressed when there is a lot of material. When there is less material, due to the reduction of pressure, it will undergo a certain deformation by itself, and then shake the material forward, thus avoiding the material from accumulating in place. The fit between the convex block 3342 and the fixed seat 3341 can prevent activated carbon from falling into the gap between the two.

[0039] To make the effect of the swing plate 332 reach the best, the swing angle of the swing plate 332 is -25° to 60°.

[0040] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A raw material feeding device for the production of activated carbon with a pre-drying function, characterized in that, It is connected to an inclined activation furnace (10). A number of 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 feed end and a discharge end. It further includes: A pre-drying structure (30), which includes an inclined trough seat (31) connected to the feed end of the activation furnace (10). A number of heaters (32) are arranged at the top of the inclined trough seat (31). A number of adjustable material spreading racks (33) are arranged at the bottom of the inclined trough seat (31). A pressure sensor is arranged on the first adjustable material spreading rack (33) counted from top to bottom. A number of adjustable material spreading racks (33) are all driven by an adjusting motor (34). The adjusting motor (34) is electrically connected to the pressure sensor. According to the data of the pressure sensor, the included angle between the adjustable material spreading rack (33) and the inner bottom of the inclined trough seat (31) is adjusted by the adjusting motor (34).

2. The raw material feeding device for activated carbon production with a pre-drying function according to claim 1, characterized in that, The adjustable material spreading rack (33) includes a swing shaft rod (331) connected to the adjusting motor (34). The swing shaft rod (331) is closely attached to the inner bottom of the inclined trough seat (31). A swing plate (332) is fixed on the swing shaft rod (331). A number of through slots are arranged on the inner side of the swing plate (332). A blocking structure (333) for adjusting the opening degree of the through slots is arranged on the back side of the swing plate (332).

3. The raw material feeding device for activated carbon production with a pre-drying function according to claim 2, wherein, The blocking structure (333) 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.

4. The raw material feeding device for activated carbon production with a pre-drying function according to claim 3, characterized in that, A number of jumping columns (334) are arranged on the front surface of the swing plate (332). The jumping columns (334) and the through slots are arranged alternately.

5. The raw material feeding device for activated carbon production with a pre-drying function according to claim 4, characterized in that, The jumping column (334) includes a fixed seat (3341) fixedly connected to the front surface of the swing plate (332). A convex block (3342) is movably arranged in the fixed seat (3341). The inner side of the convex block (3342) is connected to the bottom surface of the fixed seat (3341) through a compression spring (3343).

6. The feeding device for raw materials used in the production of activated carbon with a pre-drying function according to claim 3, characterized in that, The swing angle of the swing plate (332) is -25° to 60°.

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