Switchable filtering device for carbon nano tubes

Abstract

The invention discloses a switchable carbon nanotube filter device, which comprises a rack, a switching mechanism is arranged in the rack, and the switching mechanism comprises a switching table rotationally connected with the rack, a baffle ring and a reaction barrel fixedly mounted on the switching table, and a rotating shaft fixedly connected with the switching table; the filtering mechanism is arranged in the rack and comprises an electric push rod fixedly connected between the rack and the movable table, a filtering barrel driven by a first motor and a protective barrel arranged on the outer side of the filtering barrel in a covering mode, a connecting frame is fixedly connected to the outer side of the protective barrel, and a supporting ring is fixedly installed on the connecting frame; the limiting mechanism is arranged below the movable table and comprises a fixed block fixedly connected with the movable table, a rack fixedly connected between the fixed block and the guide plate, a gear meshed with the rack and a rotating shaft fixedly installed in the gear. According to the switchable filtering device disclosed by the invention, the filtering barrel and the protective barrel can be disassembled at the same time, so that the filtering barrel can be quickly replaced.

Description

Technical Field

[0001] This invention relates to the field of filtration devices, and more specifically to a switchable carbon nanotube filtration device. Background Technology

[0002] Carbon nanotubes, also known as buckytubes, are one-dimensional quantum materials with a unique structure. Their radial dimensions are on the nanometer scale, and their axial dimensions are on the micrometer scale. Both ends of the tubes are essentially sealed. In the production of carbon nanotube slurry, carbon nanotubes need to be purified by reacting with different reactants sequentially. If not cleaned after each reaction, they can be carried into the next reactant. Therefore, filtration and cleaning of the reactants are necessary. To improve efficiency, automated switching between different reactants and convenient replacement of containers are also required. Summary of the Invention

[0003] Purpose of the invention: The purpose of this invention is to provide a switchable carbon nanotube filtration device that automatically switches the reactant station and performs filtration and cleaning during use, and facilitates the replacement of the container.

[0004] Technical solution: A switchable carbon nanotube filtration device includes a frame, and a switching mechanism is provided inside the frame. The switching mechanism includes a switching platform rotatably connected to the frame, a retaining ring and a reaction tank fixedly installed on the switching platform, and a rotating shaft fixedly connected to the switching platform. The filter mechanism is located inside the frame. The filter mechanism includes an electric push rod fixedly connected between the frame and the movable table, a filter barrel driven by a first motor, and a protective cylinder covering the outside of the filter barrel. A connecting frame is fixedly connected to the outside of the protective cylinder, and a support ring is fixedly installed on the connecting frame. A limiting mechanism is provided below the movable platform. The limiting mechanism includes a fixed block fixedly connected to the movable platform, a rack fixedly connected between the fixed block and the guide plate, a gear meshing with the rack, a rotating shaft fixedly installed inside the gear, and a limiting rod installed on the outside of the rotating shaft via a bearing. The end of the rotating shaft is provided with a locking element. A collection mechanism is disposed inside the frame, and the collection mechanism includes a guide ring detachably installed inside the switching table and a collection box fixedly installed inside the frame.

[0005] Furthermore, a docking block is fixedly installed inside the frame, and the docking block has a rotating groove adapted to the switching table, which extends into the rotating groove. The docking block provides support for the smooth operation of the switching table.

[0006] Furthermore, the reaction tanks are arranged in a ring array, and a second motor is fixedly installed on the frame. The output end of the second motor is connected to the rotating shaft through a second coupling.

[0007] Furthermore, a guide shaft is fixedly installed on the movable platform, and the guide shaft slides in contact with the frame. The top of the frame is provided with a sliding through hole adapted to the guide shaft. The first motor is fixedly installed inside the movable platform, and the output end of the first motor is connected to a drive frame through a first coupling. A drive shaft is fixedly installed at the bottom of the drive frame. The guide shaft cooperates with the sliding through hole on the frame to assist in the smooth up-and-down movement of the movable platform driven by the electric push rod.

[0008] Furthermore, the top edge of the filter barrel is provided with a slot corresponding to the drive shaft, the drive shaft extends into the slot, the protective cylinder is a hollow structure, and the bottom end of the filter barrel is located inside the support ring.

[0009] Furthermore, the side of the fixing block is provided with a first opening corresponding to the limiting rod, and the side of the connecting frame is provided with a slot corresponding to the limiting rod. The end of the limiting rod passes through the first opening and is inserted into the slot.

[0010] Furthermore, a turntable is fixedly installed at the end of the rotating shaft, an external thread is provided on the outer side of the rotating shaft, and a second opening adapted to the limiting rod is provided on the side of the guide plate, through which the limiting rod passes.

[0011] Furthermore, the locking component includes a horizontal plate fixedly connected to the guide plate, a screw sleeve screwed to the outside of the rotating shaft, and an adjusting plate slidably sleeved on the outside of the rotating shaft. An external key is fixedly installed on the outside of the rotating shaft, and the inside of the adjusting plate is provided with a keyway adapted to the external key.

[0012] Furthermore, the side of the horizontal plate is provided with a third opening for the rotation shaft to pass through, and the side of the horizontal plate is provided with a first locking block and a second locking block. The adjusting plate is located between adjacent first locking blocks, and the screw sleeve abuts against the side of the adjusting plate.

[0013] Furthermore, a first guide tube is fixedly connected to the lower part of the switching platform, a second guide tube is fixedly connected to the lower part of the flow guide ring, the flow guide ring has an internal receiving groove, and the collection box has a top-open structure.

[0014] Beneficial effects: Advantages of the switchable filter device of this invention: 1. The switching station moves different reaction tanks to the bottom of the filter tank for reaction, realizing automated filtration and purification. Through the setting of the baffle ring and the collection mechanism, the reactant dripping from the inner wall of the protective cylinder during the switching process will fall into the baffle ring and into the guide ring and collection box, which can avoid contaminating the working environment. 2. The design of the connecting frame, support ring, limiting mechanism and locking parts allows for the simultaneous removal of the filter cartridge and protective cartridge, facilitating quick replacement of the filter cartridge. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a switchable filter device. Figure 2 for Figure 1 A magnified structural diagram of section AA in the middle; Figure 3 This is a top view of the connection between the limiting mechanism and the locking element. Figure 4 This is a schematic diagram of the rotating shaft. Figure 5 A schematic diagram of the frame structure from below; Figure 6 A top view of the connection between the connecting frame and the support ring; Figure 7 This is a top view of the switching mechanism. Figure 8 This is a schematic diagram of the flow guide ring. Detailed Implementation

[0016] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0017] A switchable carbon nanotube filtration device, combined with... Figures 1-8 As shown, it includes rack 1.

[0018] The frame 1 is equipped with a switching mechanism, which includes a switching platform 2, a retaining ring 3, a reaction tank 4, and a rotating shaft 5. A second motor 21 is fixedly installed on the frame 1. The upper end of the rotating shaft 5 passes through the frame 1. The output end of the second motor 21 is connected to the upper end of the rotating shaft 5 through a second coupling. The lower end of the rotating shaft 5 is fixedly connected to the switching platform 2. Thus, the switching platform 2 is rotatably connected relative to the frame 1. The retaining ring 3 and the reaction tank 4 are fixedly installed on the switching platform 2.

[0019] Multiple docking blocks are fixedly installed on the internal wall of the frame 1. The docking blocks have a rotating groove that is compatible with the switching table 2. The circumferential side of the switching table 2 extends into the rotating groove. The docking blocks and their rotating grooves provide support for the switching table 2. The rotating grooves also form a track and limit, which helps the larger area of ​​the switching table 2 to rotate smoothly. They also balance the force on the rotating shaft 5 that drives the switching table 2 to rotate. Support components can be installed in the rotating grooves to match and keep the connection between the rotating shaft and the circumferential side of the switching table 2 smooth, without interfering with the rotation of the switching table 2 and facilitating its smooth rotation.

[0020] A first guide tube is fixedly connected to the lower part of switcher 2. (In conjunction with the attached...) Figure 7 As shown, reaction tanks 4 are arranged in a ring array.

[0021] The filtration mechanism is located inside the frame 1 and includes a movable platform 6, an electric push rod 7, a first motor 8, a filter barrel 9, and a protective cylinder 10. The electric push rod 7 is fixedly connected between the frame 1 and the movable platform 6. The first motor 8 is fixedly installed inside the movable platform 6. The output end of the first motor 8 is connected to a drive frame 22 through a first coupling. A drive shaft is fixedly installed at the bottom of the drive frame 22. The top edge of the filter barrel 9 has a slot corresponding to the drive shaft. The drive shaft extends into the slot, thereby forming a connection between the first motor 8 and the filter barrel 9. The first motor 8 can drive the filter barrel 9.

[0022] The protective cylinder 10 has a hollow structure and is placed on the outside of the filter barrel 9. The bottom of the protective cylinder 10 is open to the outside. A connecting frame 11 is fixedly connected to the outside of the protective cylinder 10, and a support ring 12 is fixedly installed on the connecting frame 11. The bottom of the filter barrel 9 is located inside the support ring 12.

[0023] A guide shaft is fixedly installed on the movable platform 6. The guide shaft slides in contact with the frame 1. The top of the frame 1 is provided with a sliding through hole that matches the guide shaft. The guide shaft assists the electric push rod to drive the movable platform to move up and down smoothly.

[0024] The limiting mechanism is located below the movable platform 6, in conjunction with the attached... Figure 2 As shown, the limiting mechanism includes a fixed block 13, a guide plate 14, a rack 15, a gear 16, a rotating shaft 17, and a limiting rod 18. The fixed block 13 is fixedly connected to the movable platform 6, the rack 15 is fixedly connected between the fixed block 13 and the guide plate 14, the gear 16 meshes with the rack 15, the rotating shaft 17 is fixedly installed inside the gear 16, and the limiting rod 18 is installed on the outside of the rotating shaft 17 through a bearing. A locking element is provided at the end of the rotating shaft 17.

[0025] Combined with appendix Figure 3 , 4As shown, the locking mechanism includes a horizontal plate 23 fixedly connected to the guide plate 14, a screw sleeve 24 screwed to the outside of the rotating shaft 17, and an adjusting plate 25 slidably sleeved on the outside of the rotating shaft 17. An external key is fixedly installed on the outside of the rotating shaft 17, and the inside of the adjusting plate 25 is provided with a keyway adapted to the external key. The side of the horizontal plate 23 is provided with a third opening for the rotating shaft 17 to pass through. The side of the horizontal plate 23 is provided with a first locking block and a second locking block. The adjusting plate 25 is located between adjacent first locking blocks, and the screw sleeve 24 abuts against the side of the adjusting plate 25.

[0026] The side of the fixing block 13 is provided with a first opening corresponding to the limiting rod 18, and the side of the connecting frame 11 is provided with a slot corresponding to the limiting rod 18. The end of the limiting rod 18 passes through the first opening and is inserted into the slot.

[0027] A turntable is fixedly installed at the end of the rotating shaft 17. The outer side of the rotating shaft 17 is provided with an external thread. The side of the guide plate 14 is provided with a second opening that is adapted to the limiting rod 18. The limiting rod 18 passes through the second opening.

[0028] The collection mechanism is located inside the frame 1. The collection mechanism includes a guide ring 19 that can be detachably installed inside the switching table 2 and a collection box 20 that is fixedly installed inside the frame 1. A second guide tube is fixedly connected to the bottom of the guide ring 19. The inside of the guide ring 19 is provided with a receiving groove. The collection box 20 has an open top structure.

[0029] The working process of the switchable filtration device: Different reaction tanks 4 are filled with different reactants. The carbon nanotubes to be filtered and purified are placed in the filter tank 9. Then, the electric push rod 7 is activated through the control panel, causing the filter tank 9 and the protective cylinder 10 to descend synchronously and be immersed in the reaction tank 4. This allows the carbon nanotubes in the filter tank 9 to come into contact with the reactants. After a period of reaction, the electric push rod 7 returns to its original position. At this time, the operation of the first motor 8 drives the drive frame 22 and the filter tank 9 to rotate, thereby causing the reactants to be thrown out under the action of centrifugal force. The thrown reactants do not splash under the action of the protective cylinder 10 and drip into the reaction tank 4 along the inner wall of the protective cylinder 10. Then, the second motor 21 drives the switching table 2 to... The filter can rotate, causing different reaction tanks 4 to move directly below the first motor 8, so that the carbon nanotubes come into contact with different reactants in sequence for filtration and purification. During the switching process, the reactants dripping from the inner wall of the protective cylinder 10 will fall into the retaining ring 3 and into the guide ring 19 and the collection box 20, which can avoid contaminating the working environment. When the filter canister 9 needs to be replaced, turn the screw sleeve 24 counterclockwise, move the adjusting plate 25 down, and release the lock on the rotating shaft 17. Then, turn the rotating shaft 17 to drive the gear 16 to rotate. The gear 16 can drive the end of the limiting rod 18 to move out of the slot in the connecting frame 11. Then the filter canister 9 and the protective cylinder 10 can be removed at the same time, which is conducive to the quick replacement of the filter canister 9.

Claims

1. A switchable carbon nanotube filtration device, characterized in that: Includes a frame (1), the inside of which is provided a switching mechanism, the switching mechanism including a switching platform (2) rotatably connected to the frame (1), a retaining ring (3) and a reaction tank (4) fixedly installed on the switching platform (2), and a rotating shaft (5) fixedly connected to the switching platform (2). The filter mechanism is located inside the frame (1). The filter mechanism includes an electric push rod (7) fixedly connected between the frame (1) and the movable table (6), a filter barrel (9) driven by a first motor (8), and a protective cylinder (10) covering the outside of the filter barrel (9). A connecting frame (11) is fixedly connected to the outside of the protective cylinder (10), and a support ring (12) is fixedly installed on the connecting frame (11). The limiting mechanism is located below the movable platform (6). The limiting mechanism includes a fixed block (13) fixedly connected to the movable platform (6), a rack (15) fixedly connected between the fixed block (13) and the guide plate (14), a gear (16) meshing with the rack (15), a rotating shaft (17) fixedly installed inside the gear (16), and a limiting rod (18) installed on the outside of the rotating shaft (17) by a bearing. The end of the rotating shaft (17) is provided with a locking member. The collection mechanism is located inside the frame (1) and includes a guide ring (19) detachably installed inside the switching table (2) and a collection box (20) fixedly installed inside the frame (1).

2. The switchable carbon nanotube filtration device according to claim 1, characterized in that: The frame (1) is fixedly installed with a docking block inside. The docking block has a rotating groove that is adapted to the switching table (2) inside. The switching table (2) extends into the rotating groove.

3. The switchable carbon nanotube filtration device according to claim 1, characterized in that: The reaction tanks (4) are arranged in a ring array. A second motor (21) is fixedly installed on the frame (1). The output end of the second motor (21) is connected to the rotating shaft (5) through a second coupling.

4. The switchable carbon nanotube filtration device according to claim 1, characterized in that: A guide shaft is fixedly installed on the movable platform (6). The guide shaft slides in contact with the frame (1). The top of the frame (1) is provided with a sliding through hole that is adapted to the guide shaft. The first motor (8) is fixedly installed inside the movable platform (6). The output end of the first motor (8) is connected to a drive frame (22) through a first coupling. A drive shaft is fixedly installed at the bottom of the drive frame (22).

5. The switchable carbon nanotube filtration device according to claim 4, characterized in that: The top edge of the filter barrel (9) is provided with a slot corresponding to the drive shaft, the drive shaft extends into the slot, the protective cylinder (10) is a hollow structure, and the bottom end of the filter barrel (9) is located inside the support ring (12).

6. The switchable carbon nanotube filtration device according to claim 1, characterized in that: The side of the fixing block (13) is provided with a first opening corresponding to the limiting rod (18), and the side of the connecting frame (11) is provided with a slot corresponding to the limiting rod (18). The end of the limiting rod (18) passes through the first opening and is inserted into the slot.

7. The switchable carbon nanotube filtration device according to claim 1, characterized in that: A turntable is fixedly installed at the end of the rotating shaft (17). The outer side of the rotating shaft (17) is provided with an external thread. The side of the guide plate (14) is provided with a second opening that is adapted to the limiting rod (18). The limiting rod (18) passes through the second opening.

8. The switchable carbon nanotube filtration device according to claim 1, characterized in that: The locking component includes a horizontal plate (23) fixedly connected to the guide plate (14), a screw sleeve (24) screwed to the outside of the rotating shaft (17), and an adjusting plate (25) slidably sleeved on the outside of the rotating shaft (17). An external key is fixedly installed on the outside of the rotating shaft (17), and the inside of the adjusting plate (25) is provided with a keyway that matches the external key.

9. A switchable carbon nanotube filtration device according to claim 8, characterized in that: The side of the horizontal plate (23) is provided with a third opening for the rotation shaft (17) to pass through. The side of the horizontal plate (23) is provided with a first locking block and a second locking block. The adjusting plate (25) is located between adjacent first locking blocks. The screw sleeve (24) abuts against the side of the adjusting plate (25).

10. A switchable carbon nanotube filtration device according to claim 1, characterized in that: The switching platform (2) is fixedly connected to a first guide tube below, and the flow guide ring (19) is fixedly connected to a second guide tube below. The flow guide ring (19) has an internal receiving groove, and the collection box (20) has an open top structure.

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