A device for producing secondary activated mesoporous activated carbon

Abstract

The present invention belongs to the technical field of activated carbon production devices, and specifically relates to a secondary activated mesoporous activated carbon production device, including a furnace body and a separation and gasification device, wherein the upper end of the furnace body is provided with a feed port, and the lower end of the furnace body is provided with a discharge port; the separation and gasification device is provided with multiple separation and gasification devices, and multiple separation and gasification devices are arranged on the furnace body at intervals; the separation and gasification device includes a support plate and a shielding plate, the support plate is arranged in the furnace body and is rotatably connected to the furnace body through a hollow shaft, one end of the hollow shaft extends out of the furnace body and is connected to a driving mechanism, and the hollow shaft and the support plate are driven to rotate by the driving mechanism; one end of the hollow shaft is rotatably connected to a rotary joint; the internal space of the furnace body can be separated by the separation and gasification device, and the coal can be supported by the support plate to avoid excessive pressure at the bottom of the furnace body. The air outlet on the support plate can spray water vapor, thereby ensuring that the coal layer can be evenly contacted with the water vapor.

Description

Technical Field

[0001] The invention belongs to the technical field of activated carbon production equipment, and in particular relates to a secondary activated mesoporous activated carbon production equipment. Background Art

[0002] Activated carbon activation furnace is an important equipment for preparing activated carbon. Its working principle mainly includes two processes: physical activation and chemical activation. In the physical activation process, after the activated carbon raw material enters the activation furnace, it is heated to the high temperature zone. Under high temperature, the macromolecular organic matter in the raw material begins to decompose and releases gas and steam. In the chemical activation process, water vapor, flue gas (mainly CO2) or its mixed gas and other oxygen-containing gases are usually used as activators. At high temperature, they come into contact with carbon to cause redox reaction for activation, generating carbon monoxide, carbon dioxide, hydrogen and other hydrocarbon gases.

[0003] At present, the common way to add water vapor is to add it through the bottom of the furnace. Although the pressure of the added water vapor can spread instantly in the high temperature zone, react with the coal to activate it, and thus produce activated carbon products, adding it only through the bottom cannot ensure uniformity during the diffusion process. Moreover, the accumulation of coal in the furnace will cause the bottom of the furnace to have too much support; when discharging, a large amount of coal will flow down, causing the discharge port to be blocked.

[0004] The utility model patent with patent application number 202223161001.3 discloses a wood activated carbon activation device, on which a rotating shaft is surrounded by multi-layer annular baffles arranged at intervals; the wood activated carbon activation device drives the smoothing device to evenly smooth the raw materials while moving the baffle. Although it has a multi-layer structure to avoid excessive bottom support, it does not take into account the uneven diffusion of water vapor, and it does not mention it. At the same time, it only discharges through the discharge hole during discharge. Although it can avoid a large amount of downflow, the discharge efficiency of the single layer is low, and there will still be residual defects.

[0005] The invention patent application with patent application number 202010823662.4 discloses an improved multi-chamber furnace for activated carbon regeneration and its application, which adopts a multi-chamber furnace setting, and under the action of the pushing and stirring teeth, the solid material is mechanically pushed and gradually moves from the outside of the furnace bed to the middle of the furnace bed, and finally falls into the next layer of the furnace bed through the hole in the middle of the furnace bed. At the same time, a downward inclined water vapor injection port is set at the corresponding position of the furnace bed discharge port, which can not only realize the cross-flow and downstream interlacing of materials and water vapor, but also realize the atmosphere stratification of the activation cavity. That is, it overcomes the above-mentioned defect of uneven water vapor diffusion.

[0006] It also discharges materials through through holes (middle holes). Although a mechanical push mechanism is set up to avoid or reduce residue, it still has the defect of low single-layer discharge efficiency. At the same time, a downward-inclined steam injection port is set at the corresponding position of the furnace bed discharge port. During the process of adding or discharging materials, there is a lack of protection and it is easy to be damaged during long-term use. Summary of the invention

[0007] In response to the above technical problems, the present invention provides a secondary activated mesoporous activated carbon production device, which can perform layered support and layered gas supply, can effectively avoid uneven diffusion and discharge blockage, and can improve the single-layer discharge efficiency and protect the steam outlet.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0009] A device for making secondary activated mesoporous activated carbon, comprising a furnace body and a separation and gasification device, wherein the upper end of the furnace body is provided with a feed port, and the lower end of the furnace body is provided with a discharge port; the separation and gasification device is provided with a plurality of separation and gasification devices, and the plurality of separation and gasification devices are arranged on the furnace body at intervals; the separation and gasification device comprises a support plate and a shielding plate, wherein the support plate is arranged in the furnace body and is rotatably connected to the furnace body through a hollow shaft, one end of the hollow shaft extends out of the furnace body and is connected to a driving mechanism, and the hollow shaft and the support plate are driven to rotate by the driving mechanism; one end of the hollow shaft is rotatably connected to a rotary joint;

[0010] The support plate is provided with an air outlet hole connected with the hollow shaft, and the support plate is provided with a material discharge hole; the shielding plate is rotatably connected with the support plate, and the shielding plate is provided with an exhaust hole; one end of the hollow shaft is slidably connected with a sliding sleeve, one end of the sliding sleeve passes through the outer wall of the furnace body and extends into the furnace body and is connected to the shielding plate through a connecting rod; the shielding plate is rotated by the movement of the sliding sleeve to shield the air outlet hole or the material discharge hole;

[0011] The furnace body is provided with a pushing mechanism, which drives the sliding sleeves in each separation and gas filling device to move.

[0012] The driving mechanism includes a motor base and a first motor, wherein the motor base is fixedly connected to the furnace body, and the housing of the first motor is fixedly connected to the motor base; a driving gear is fixedly connected to the output shaft of the first motor, and a transmission gear meshing with the driving gear is fixed to one end of the hollow shaft.

[0013] The pushing mechanism includes a linear moving mechanism, a moving plate and a pushing plate. The linear moving mechanism is arranged on the furnace body, and the moving plate is connected to the linear moving mechanism. The moving plate is driven to move up and down by the linear moving mechanism. A driving cylinder is arranged between the pushing plate and the moving plate. The pushing plate is driven to move forward and backward by the driving cylinder. The pushing plate cooperates with the sliding sleeve to drive the sliding sleeve to move.

[0014] A connecting plate is fixedly connected to the sliding sleeve, and the pushing plate is clamped with the connecting plate.

[0015] The push plate is in the shape of a "concave" character.

[0016] A limiting block is fixed on the furnace body, and the movement of the connecting plate is limited by the limiting block.

[0017] The linear moving mechanism includes a second motor, a guide rod and a screw, wherein the guide rod is fixedly connected to the furnace body, and the screw is rotatably connected to the furnace body; a screw sleeve is threadedly connected to the screw, and the movable plate is slidably connected to the guide rod and fixedly connected to the screw sleeve; the output shaft of the second motor is fixedly connected to the screw, and the housing of the second motor is fixedly connected to the furnace body.

[0018] The separation and gas filling devices are provided with at least three.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The internal space of the furnace can be divided by the separation and aeration device, and the coal can be supported by the support plate to avoid excessive pressure at the bottom of the furnace. The air outlet holes on the support plate can spray water vapor to ensure that the coal layer can be evenly contacted with the water vapor.

[0021] When adding coal, the shielding plate can shield the air outlet and leak out the feeding hole. On the one hand, it can prevent the coal from damaging the air outlet (playing a protective role), and on the other hand, it ensures that the coal can fall through the feeding hole.

[0022] When coal is added, the shielding plate can block the discharge hole and leak out the vent hole, and water vapor will be sprayed out through the vent hole; after the shielding plate blocks the discharge hole, the support range of the support plate for coal can be expanded. After activation, the support plate can be rotated layer by layer to achieve layer-by-layer discharge, which can improve the single-layer discharge speed and avoid the blockage caused by a large amount of coal gushing out from the bottom of the original single furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0025] Figure 3 yes Figure 1 A partial enlarged view of point B in the middle;

[0026] Figure 4 It is a cross-sectional view of one direction of the present invention;

[0027] Figure 5 is a cross-sectional view of another direction of the present invention;

[0028] Figure 6 It is a schematic structural diagram of a separation and aeration device of the present invention in one direction;

[0029] Figure 7 It is a structural schematic diagram of the separation and aeration device of the present invention in another direction;

[0030] Figure 8 It is a structural schematic diagram of the support plate of the present invention;

[0031] Wherein: 1 is a furnace body, 100 is an electric heating device, 101 is a furnace cover, 102 is an air outlet pipe, 2 is a separation and gas adding device, 3 is a feed port, 4 is a discharge port, 5 is a support plate, 6 is a shielding plate, 7 is a hollow shaft, 8 is a driving mechanism, 9 is a rotary joint, 10 is an air outlet, 11 is a feed hole, 12 is an exhaust hole, 13 is a sliding sleeve, 14 is a connecting rod, 15 is a pushing mechanism, 16 is a motor seat, 17 is a first motor, 18 is a driving gear, 19 is a transmission gear, 20 is a linear moving mechanism, 21 is a moving plate, 22 is a pushing plate, 23 is a driving cylinder, 24 is a connecting plate, 25 is a limit block, 26 is a guide rod, 27 is a screw, 28 is a screw sleeve, and 29 is a second motor. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0033] like Figure 1-8 As shown, a secondary activated mesoporous activated carbon manufacturing device includes a furnace body 1 and a separation and gasification device 2. A feed port 3 is provided at the upper end of the furnace body 1, and a discharge port 4 is provided at the lower end of the furnace body 1. Specifically, a furnace cover 101 is provided on the feed port 3, a valve is provided at the discharge port 4, and an electric heating device 100 is provided outside the furnace body 1. Multiple separation and gasification devices 2 can be provided, and multiple separation and gasification devices 2 are sequentially arranged on the furnace body 1 from top to bottom. The number of separation and gasification devices 2 is set as needed, preferably three.

[0034] The separation and gasification device 2 includes a support plate 5 and a shielding plate 6. The support plate 5 is arranged in the furnace body 1 and is rotatably connected to the furnace body 1 through a hollow shaft 7. One end of the hollow shaft 7 extends out of the furnace body 1 and is connected to a driving mechanism 8. The driving mechanism 8 drives the hollow shaft 7 and the support plate 5 to rotate; one end of the hollow shaft 7 is rotatably connected to a rotary joint 9, and the rotary joint 9 is used to communicate with a pipeline for supplying water vapor. Specifically: there is a gap between the support plate 5 and the furnace body 1, which, on the one hand, satisfies the space required for the rotation of the support plate 5.

[0035] The support plate 5 is provided with an air outlet 10 connected with the hollow shaft 7. After the water vapor passes through the rotary joint 9 and the hollow shaft 7, it is ejected from the air outlet 10. The support plate 5 is provided with a discharge hole 11 through which the coal can leak out.

[0036] The shielding plate 6 is rotatably connected to the support plate 5, and an exhaust hole 12 is provided on the shielding plate 6; the diameter of the exhaust hole 12 is determined according to the size of the coal, and it is ensured that the coal can be blocked, and water vapor can pass through the exhaust hole 12. A sleeve 13 is slidably connected to one end of the hollow shaft 7, and one end of the sleeve 13 passes through the outer wall of the furnace body 1 and extends into the furnace body 1 and is connected to the shielding plate 6 through a connecting rod 14, and the two ends of the connecting rod 14 are respectively hinged to the sleeve 13 and the shielding plate 6. The shielding plate 6 is rotated by the movement of the sleeve 13 to block the air outlet 10 or the discharge hole 11. The interior of the furnace body 1 can be separated by the support plate 5 to achieve layered support, discharge and gas (water vapor) supply.

[0037] With the above-mentioned structural arrangement, when the hollow shaft 7 rotates, the support plate 5 connected thereto and the shielding plate 6, the connecting rod 14 and the sliding sleeve 13 on the support plate 5 will also rotate accordingly. A pushing mechanism 15 is provided on the furnace body 1, and the sliding sleeve 13 in each partitioning and gassing device 2 is driven to move by the pushing mechanism 15.

[0038] The working principle of activation is as follows: by arranging an electric heating device 100 outside the furnace body 1 for heating, water vapor is introduced into each hollow shaft 7, and the water vapor is ejected from the exhaust hole 12, so that the water vapor penetrates upward through the carbon layer for activation, thereby producing an activated carbon product. The gas generated during the activation process is discharged through the exhaust pipe 102 on the furnace cover 101.

[0039] During the process of adding coal, the shielding plate 6 rotates through the movement of the sliding sleeve 13, which shields the gas outlet 10 and leaks out the discharge hole 11. On the one hand, it can prevent coal from damaging the gas outlet 10, and on the other hand, it ensures that the coal can fall through the discharge hole 11.

[0040] After coal is added (the furnace cover 101 is closed), the shielding plate 6 rotates in the opposite direction through the reverse movement of the sliding sleeve 13, shielding the discharge hole 11 and exposing the air hole 10, and water vapor is sprayed out through the air outlet 10; after the shielding plate 6 blocks the discharge hole 11, the supporting range of the support plate 5 for the coal can be expanded.

[0041] After activation, the driving mechanism 8 drives the hollow shaft 7, support plate 5 and shielding plate 6 of each layer to rotate; specifically, the valve at the discharge port 4 is opened first, and the driving mechanism 8 drives the hollow shaft 7, support plate 5 and shielding plate 6 of the lowest layer to rotate, and the activated coal thereon is discharged through the valve; then the driving mechanism 8 drives the hollow shaft 7, support plate 5 and shielding plate 6 of the upper layer, so that the activated coal thereon is discharged through the valve. That is, the support plate 5 is rotated layer by layer from bottom to top to realize layer-by-layer discharge, thereby preventing the activated coal from gushing out from the bottom at the same time and causing clogging.

[0042] Furthermore, the driving mechanism 8 includes a motor base 16 and a first motor 17. The motor base 16 is fixedly connected to the furnace body 1, and the housing of the first motor 17 is fixedly connected to the motor base 16. A driving gear 18 is fixedly connected to the output shaft of the first motor 17, and a transmission gear 19 meshing with the driving gear 18 is fixed to one end of the hollow shaft 7. When the first motor 17 drives the driving gear 18 to rotate, the driving gear 18 meshes with the transmission gear 19, thereby driving the hollow shaft 7, the supporting plate 5, the shielding plate 6, the connecting rod 14 and the sliding sleeve 13 to rotate accordingly.

[0043] Further, the pushing mechanism 15 includes a linear moving mechanism 20, a moving plate 21 and a pushing plate 22. The linear moving mechanism 20 is arranged on the furnace body 1, and the moving plate 21 is connected to the linear moving mechanism 20. The moving plate 21 is driven to move up and down by the linear moving mechanism 20. A driving cylinder 23 is arranged between the pushing plate 22 and the moving plate 21, and the two ends of the driving cylinder 23 are respectively fixedly connected to the pushing plate 22 and the moving plate 21. The driving cylinder 23 drives the pushing plate 22 to move forward and backward, and the pushing plate 22 cooperates with the sliding sleeve 13 to drive the sliding sleeve 13 to move.

[0044] The moving plate 21 is driven to move up and down by the linear moving mechanism 20, so that the push plate 22 on the moving plate 21 moves to the sliding sleeve 13 to be driven; the push plate 22 is connected to the sliding sleeve 13, so as to drive the sliding sleeve 13 to move forward and backward, thereby realizing the rotation of the shielding plate 6. Through the above-mentioned structural setting, only one pushing mechanism 15 is set to drive the movement of the sliding sleeve 13 in each partitioning and gas filling device 2. Specifically: a connecting plate 24 is fixedly connected to the sliding sleeve 13, and the pushing plate 22 is clamped with the connecting plate 24; the pushing plate 22 is in a "concave" shape, so that the connecting plate 24 can be "clamped" into it.

[0045] Furthermore, in order to prevent the support plate 5 from over-rotating after activation, a limit block 25 is fixed on the furnace body 1, and the limit block 25 limits the maximum rotation angle of the connecting plate 24. When the first motor 17 drives the driving gear 18 to rotate, the sliding sleeve 13 also rotates accordingly. When the connecting block on the sliding sleeve 13 contacts the limit block 25, the sliding sleeve 13, the hollow shaft 7, and the support plate 5 can be limited from continuing to rotate.

[0046] Furthermore, the linear moving mechanism 20 includes a second motor 29, a guide rod 26 and a screw 27. The guide rod 26 is fixedly connected to the furnace body 1, and the screw 27 is rotatably connected to the furnace body 1. The screw 27 is threadedly connected with a screw sleeve 28, and the movable plate 21 is slidably connected to the guide rod 26 and fixedly connected to the screw sleeve 28. The screw 27 is connected to the second motor 29, and is driven to rotate by the second motor 29. The housing of the second motor 29 is fixedly connected to the furnace body 1, and the output shaft of the second motor 29 is fixedly connected to the screw 27. When the screw 27 rotates, the screw sleeve 28 and the movable plate 21 can be moved up and down.

[0047] Only the preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the above embodiments.

Claims

1. A secondary activated mesoporous activated carbon production device, characterized in that: The invention comprises a furnace body (1) and a separation and gasification device (2), wherein the upper end of the furnace body (1) is provided with a material inlet (3), and the lower end of the furnace body (1) is provided with a material outlet (4); a plurality of the separation and gasification devices (2) are provided, and the plurality of separation and gasification devices (2) are arranged at intervals on the furnace body (1); the separation and gasification device (2) comprises a support plate (5) and a shielding plate (6), wherein the support plate (5) is arranged in the furnace body (1) and is rotatably connected to the furnace body (1) via a hollow shaft (7), one end of the hollow shaft (7) extends out of the furnace body (1) and is connected to a driving mechanism (8), and the driving mechanism (8) drives the hollow shaft (7) and the support plate (5) to rotate; one end of the hollow shaft (7) is rotatably connected to a rotary joint (9); The support plate (5) is provided with an air outlet (10) which is in communication with the hollow shaft (7), and the support plate (5) is provided with a material discharge hole (11); the shielding plate (6) is rotatably connected to the support plate (5), and the shielding plate (6) is provided with an air discharge hole (12); one end of the hollow shaft (7) is slidably connected to a sliding sleeve (13), one end of the sliding sleeve (13) passes through the outer wall of the furnace body (1) and extends into the furnace body (1) and is connected to the shielding plate (6) via a connecting rod (14); the shielding plate (6) is rotated by the movement of the sliding sleeve (13) to shield the air outlet (10) or the material discharge hole (11); The furnace body (1) is provided with a driving mechanism (15), and the sliding sleeves (13) in each partitioning and gas-filling device (2) are driven to move by the driving mechanism (15).

2. The device for producing secondary activated mesoporous activated carbon according to claim 1, characterized in that: The driving mechanism (8) comprises a motor base (16) and a first motor (17); the motor base (16) is fixedly connected to the furnace body (1); and the housing of the first motor (17) is fixedly connected to the motor base (16); a driving gear (18) is fixedly connected to the output shaft of the first motor (17); and a transmission gear (19) meshing with the driving gear (18) is fixedly connected to one end of the hollow shaft (7).

3. The device for producing secondary activated mesoporous activated carbon according to claim 1, characterized in that: The pushing mechanism (15) comprises a linear moving mechanism (20), a moving plate (21) and a pushing plate (22); the linear moving mechanism (20) is arranged on the furnace body (1); the moving plate (21) is connected to the linear moving mechanism (20); the moving plate (21) is driven to move up and down by the linear moving mechanism (20); a driving cylinder (23) is arranged between the pushing plate (22) and the moving plate (21); the driving cylinder (23) drives the pushing plate (22) to move forward and backward; the pushing plate (22) cooperates with the sliding sleeve (13) to drive the sliding sleeve (13) to move.

4. The device for producing secondary activated mesoporous activated carbon according to claim 3, characterized in that: A connecting plate (24) is fixedly connected to the sliding sleeve (13), and the pushing plate (22) is clamped to the connecting plate (24).

5. A secondary activated mesoporous activated carbon production device according to claim 3 or 4, characterized in that: The push plate (22) is in the shape of a "concave" character.

6. The device for producing secondary activated mesoporous activated carbon according to claim 4, characterized in that: A limit block (25) is fixed on the furnace body (1), and the movement of the connecting plate (24) is limited by the limit block (25).

7. The device for producing secondary activated mesoporous activated carbon according to claim 3, characterized in that: The linear motion mechanism (20) comprises a second motor (29), a guide rod (26) and a screw (27); the guide rod (26) is fixedly connected to the furnace body (1), and the screw (27) is rotatably connected to the furnace body (1); a screw sleeve (28) is threadedly connected to the screw (27); the moving plate (21) is slidably connected to the guide rod (26) and fixedly connected to the screw sleeve (28); the output shaft of the second motor (29) is fixedly connected to the screw (27), and the housing of the second motor (29) is fixedly connected to the furnace body (1).

8. The device for producing secondary activated mesoporous activated carbon according to claim 1, characterized in that: The separation and gas filling devices (2) are provided with at least three.

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