Drying equipment for carbon nanotubes

Abstract

The utility model relates to the technical field of carbon nano tube processing equipment, and discloses carbon nano tube drying equipment which comprises a drying cylinder, heating tubes are evenly arranged in the cylinder wall of the drying cylinder, and a rotating shaft is arranged in the drying cylinder and coaxially and fixedly connected with the tail end of a motor rotor. Stirring rods are symmetrically and fixedly connected to the outer side of the lower portion of the rotating shaft at equal intervals, the caking treatment assembly comprises a filter plate which is horizontally arranged in the drying cylinder and movably connected with the rotating shaft, vertical rods are fixedly connected to the inner wall of the drying cylinder in the circumferential direction at equal intervals through connecting bases, and the vertical rods are slidably connected with the filter plate; a spring is arranged outside the vertical rod in a sleeving mode, arc-shaped blocks are symmetrically and fixedly connected to the bottom of the filter plate, the bottom face of each arc-shaped block is designed to be an inclined face, and rolling wheels are symmetrically and rotationally connected to the outer portion of a rotating shaft. And the problem that the drying effect on the carbon nano tubes is affected due to the fact that the humidity in the device is increased is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon nanotube processing equipment, in particular to a carbon nanotube drying device. Background Art

[0002] Carbon nanotubes, also known as buckytubes, are a one-dimensional quantum material with a special structure. Carbon nanotubes are mainly composed of several to dozens of layers of coaxial circular tubes composed of carbon atoms arranged in a hexagonal pattern. Their radial dimensions are in the nanometer range, their axial dimensions are in the micrometer range, and both ends of the tubes are basically sealed. Due to their unique structure and excellent mechanical, electrical and chemical properties, they are widely used in fields including nanotechnology, electronics, biology, chemistry, etc. Carbon nanotubes usually need to be dried during the production process, so special drying equipment is required.

[0003] A Chinese utility model patent with the announcement number CN219264875U discloses a hot air treatment device for carbon nanotubes. The device transports the airflow along the first air outlet and the second air outlet respectively through the air supply cavity. A heating pipe is arranged at the ends of the first air outlet and the second air outlet to achieve the heating effect on the airflow. The first plate body and the second plate body respectively achieve uniform diffusion of the transported airflow, so that the airflow is evenly dispersed in the cavity before heating, and the heating performance of the airflow is improved. Therefore, the carbon nanotube material can be stably and evenly heated when being transported on the conveyor belt, and the uniformity of the hot air effect is guaranteed. With respect to the above-mentioned related technologies, the inventor believes that there are the following defects:

[0004] When the device is actually used, the moisture on the surface of the carbon nanotubes will evaporate due to heat, causing the water vapor to rise with the hot air flow and gather at the top of the inner cavity of the shell. In addition, the device lacks an integrated structure that can remove water vapor, which can easily lead to an increase in humidity inside the shell, thereby affecting the drying effect of the carbon nanotubes. For this reason, we provide a carbon nanotube drying device. Utility Model Content

[0005] In order to solve the problem in the above background technology that it is difficult to remove water vapor, which increases the humidity inside the device and affects the drying effect of carbon nanotubes, the utility model provides a carbon nanotube drying device.

[0006] The utility model adopts the following technical solution to achieve: a drying device for carbon nanotubes, comprising:

[0007] A drying drum, wherein heating tubes are evenly arranged inside the wall of the drying drum, a motor is fixedly connected to the center of the top of the drying drum, a rotating shaft is arranged inside the drying drum and is coaxially fixedly connected to the end of the motor rotor, and a stirring rod is symmetrically and equidistantly fixedly connected to the outer side of the lower part of the rotating shaft;

[0008] The agglomeration processing assembly comprises a filter plate horizontally arranged inside a drying drum and movably connected to a rotating shaft, the inner wall of the drying drum is equidistantly and circumferentially fixedly connected with a vertical rod through a connecting seat, and the vertical rod and the filter plate are slidably connected, the outer sleeve of the vertical rod is provided with a spring, the bottom of the filter plate is symmetrically and fixedly connected with an arc block, and the bottom surface of the arc block is designed as an inclined surface, and the outer side of the rotating shaft is symmetrically and rotatably connected with a roller;

[0009] A water vapor removal component, the water vapor removal component includes an exhaust chamber symmetrically fixedly connected to the top of a drying cylinder, an air inlet pipe fixedly connected between the exhaust chamber and the drying cylinder, an exhaust pipe fixedly connected between the exhaust chamber and the drying cylinder, baffles symmetrically arranged inside the exhaust pipe, water-absorbing particles are filled between two groups of baffles, a piston plate is movably connected inside the exhaust chamber, a connecting rod is fixedly connected to the bottom of the piston plate and the bottom end of the connecting rod extends to the interior of the drying cylinder, a crankshaft is symmetrically rotatably connected to the top of the inner cavity of the drying cylinder, a sleeve is movably sleeved on the outside of the crankshaft, and a connecting rod is hinged between the sleeve and the connecting rod through a hinge.

[0010] As a further improvement of the above solution, a cross bar is symmetrically fixedly connected to the outer side of the upper portion of the rotating shaft.

[0011] As a further improvement of the above solution, a stopper is fixedly connected to the top end of the vertical rod.

[0012] As a further improvement of the above solution, two ends of the spring are fixedly connected to the connecting seat and the filter plate respectively.

[0013] As a further improvement of the above scheme, a one-way valve is added inside the intake pipe and the exhaust pipe, the opening direction of the one-way valve inside the intake pipe is consistent with the direction of hot air flowing in, and the opening direction of the one-way valve inside the exhaust pipe is consistent with the direction of hot air flowing out.

[0014] As a further improvement of the above solution, a filter is fixedly connected to the outside of the air inlet of the air inlet pipe.

[0015] As a further improvement of the above solution, limit rings are provided on both sides of the sleeve and the limit rings are fixedly connected to the crankshaft.

[0016] As a further improvement of the above solution, bevel gears are fixedly connected to the outside of the rotating shaft and one end of the crankshaft, and the bevel gears are meshingly connected.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The utility model drives the rotating shaft to rotate through a motor, and utilizes the meshing action between bevel gears to drive two sets of crankshafts to rotate together. The rotation of the crankshaft drives the sleeve to make a circular motion. The hinge action between the sleeve and the connecting rod and the connecting rod is utilized to drive the piston plate to make a vertical reciprocating movement inside the exhaust chamber, so that the hot air containing water vapor inside the drying cylinder can be sucked and discharged back into the drying cylinder after being dehumidified by the water-absorbing particles. This not only realizes the removal of water vapor and ensures the drying effect of carbon nanotubes, but also reduces the heat loss, and has strong practicality.

[0019] 2. Due to the small particle size of carbon nanotubes and the existence of surface tension of external solvents, carbon nanotubes are easy to agglomerate during heating and drying, thus forming agglomerates, thereby reducing the uniformity of drying the carbon nanotubes. In the process of removing water vapor, the rotation of the shaft will also drive the roller to move in a circumferential direction. When the roller contacts the arc block, the rolling action of the roller, the cooperation between the roller and the bottom inclined surface of the arc block, and the sliding cooperation between the filter plate and the vertical rod are used to push the filter plate upward. When the roller is away from the arc block, the rebound action of the spring is used to drive the filter plate to reset, and so on, thereby realizing the vibration of the filter plate. The vibration of the filter plate will throw the carbon nanotubes upward, thereby avoiding the accumulation of carbon nanotubes and affecting the uniformity of heating. The thrown carbon nanotubes will also be broken up by the rotating cross bar, thereby preventing them from agglomerating. At the same time, the mutual collision between the carbon nanotubes and the filter plate will also break them up, further improving the ability of the device to prevent carbon nanotubes from agglomerating. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the vertical sectional three-dimensional structure of the utility model;

[0021] Figure 2 This is a vertical section bottom view of the three-dimensional structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the longitudinal section structure of the air intake pipe of the utility model;

[0023] Figure 4 It is a schematic diagram of the longitudinal section structure of the exhaust pipe of the utility model.

[0024] Description of main symbols:

[0025] 1. Drying cylinder; 2. Rotating shaft; 3. Stirring rod; 4. Bevel gear; 101. Filter plate; 102. Vertical rod; 103. Spring; 104. Arc block; 105. Roller; 106. Cross bar; 201. Vacuum chamber; 202. Inlet pipe; 203. Exhaust pipe; 204. Water-absorbing particles; 205. Piston plate; 206. Connecting rod; 207. Crankshaft; 208. Sleeve; 209. Connecting rod; 210. One-way valve. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0027] Embodiment 1:

[0028] Please combine Figure 1-4 , a carbon nanotube drying device of this embodiment includes:

[0029] A drying drum 1, the wall of which is evenly provided with heating tubes, the top center of the drying drum 1 is fixedly connected with a motor, a rotating shaft 2 is provided inside the drying drum 1 and is coaxially fixedly connected with the end of the motor rotor, and a stirring rod 3 is symmetrically fixedly connected with the lower outer side of the rotating shaft 2;

[0030] The agglomeration processing component includes a filter plate 101 horizontally arranged inside the drying cylinder 1 and movably connected to the rotating shaft 2. The inner wall of the drying cylinder 1 is equidistantly fixedly connected to a vertical rod 102 through a connecting seat, and the vertical rod 102 is slidably connected to the filter plate 101. The outer sleeve of the vertical rod 102 is provided with a spring 103, and the two ends of the spring 103 are respectively fixedly connected to the connecting seat and the filter plate 101. The bottom of the filter plate 101 is symmetrically fixedly connected to an arc block 104, and the bottom surface of the arc block 104 is an inclined surface design. The outside of the rotating shaft 2 is symmetrically rotatably connected to a roller 105, and the upper outer side of the rotating shaft 2 is symmetrically fixedly connected to a cross bar 106, which is convenient for breaking up the thrown carbon nanotube agglomerates, and the top of the vertical rod 102 is fixedly connected to a stopper, which can prevent the filter plate 101 from being separated from the vertical rod 102.

[0031] A water vapor removal component, the water vapor removal component includes an exhaust chamber 201 symmetrically fixedly connected to the top of the drying cylinder 1, an air inlet pipe 202 is fixedly connected between the exhaust chamber 201 and the drying cylinder 1, an exhaust pipe 203 is also fixedly connected between the exhaust chamber 201 and the drying cylinder 1, baffles are symmetrically arranged inside the exhaust pipe 203, water-absorbing particles 204 are filled between the two sets of baffles, a piston plate 205 is movably connected inside the exhaust chamber 201, a connecting rod 206 is fixedly connected to the bottom of the piston plate 205 and the bottom end of the connecting rod 206 extends to the inside of the drying cylinder 1, a crankshaft 207 is symmetrically rotatably connected to the top of the inner cavity of the drying cylinder 1, a sleeve 208 is movably sleeved on the outside of the crankshaft 207, and the sleeve 208 is connected to the inner cavity of the drying cylinder 1. A connecting rod 209 is hinged between the connecting rods 206 through a hinge, and a one-way valve 210 is added inside the intake pipe 202 and the exhaust pipe 203. The opening direction of the one-way valve 210 inside the intake pipe 202 is consistent with the direction of hot air flowing in, and the opening direction of the one-way valve 210 inside the exhaust pipe 203 is consistent with the direction of hot air flowing out. Limiting rings are provided on both sides of the sleeve 208 and the limiting rings are fixedly connected to the crankshaft 207 to prevent the sleeve 208 from shifting left and right. The outside of the rotating shaft 2 and one end of the crankshaft 207 are fixedly connected with bevel gears 4 and the bevel gears 4 are meshedly connected, so that it is convenient to drive the water vapor removal component to operate while driving the agglomeration processing component.

[0032] The implementation principle of a carbon nanotube drying device in the embodiment of the present application is as follows: first, carbon nanotubes are added into the drying drum 1, and then the heating tube is started to dry the carbon nanotubes inside the drying drum 1, and then the motor is started to drive the rotating shaft 2 to rotate, and the meshing action between the bevel gears 4 is utilized to drive the two sets of crankshafts 207 to rotate together, and the rotation of the crankshaft 207 drives the sleeve 208 to make a circular motion, and the hinge action between the sleeve 208 and the connecting rod 206 and the connecting rod 209 is utilized to drive the piston plate 205 to make a vertical reciprocating movement inside the exhaust chamber 201, so that the hot air containing water vapor inside the drying drum 1 can be sucked, and discharged back into the drying drum 1 after being dehumidified by the water-absorbing particles 204, which not only realizes the removal of water vapor, but also reduces the heat loss. At the same time, the rotation of the rotating shaft 2 will also drive the roller 105 to make a circumferential motion. When the roller 105 contacts the arc block 104, the rolling action of the roller 105 is utilized. The action, the cooperation between the roller 105 and the bottom inclined surface of the arc block 104, and the sliding cooperation between the filter plate 101 and the vertical rod 102 make it possible to push the filter plate 101 to move upward. When the roller 105 is away from the arc block 104, the rebound effect of the spring 103 is used to drive the filter plate 101 to reset, and so on, thereby realizing the vibration of the filter plate 101. The vibration of the filter plate 101 will throw the carbon nanotubes upward, thereby avoiding the accumulation of the carbon nanotubes and affecting the uniformity of their heating, and the thrown carbon nanotubes will also be broken up by the rotating cross bar 106 to prevent them from agglomerating together. At the same time, the mutual collision between the carbon nanotubes and the filter plate 101 will also break them up, further improving the ability of the device to prevent the carbon nanotubes from agglomerating. The broken carbon nanotubes will fall to the bottom of the inner cavity of the drying cylinder 1 to continue to be heated, and they will be stirred by the stirring rod 3 to ensure the uniformity of their heating, and finally the dried carbon nanotubes can be discharged.

[0033] Embodiment 2:

[0034] The present embodiment is further improved on the basis of the embodiment 1 in that: a filter is fixedly connected to the outside of the air inlet of the air inlet pipe 202 to block the carbon nanotubes and prevent them from being sucked into the air extraction chamber 201 .

[0035] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A drying device for carbon nanotubes, characterized in that: include: A drying cylinder (1), wherein heating tubes are evenly arranged inside the cylinder wall of the drying cylinder (1), a motor is fixedly connected to the center of the top of the drying cylinder (1), a rotating shaft (2) is arranged inside the drying cylinder (1) and is coaxially fixedly connected to the end of the motor rotor, and a stirring rod (3) is fixedly connected to the outer side of the lower part of the rotating shaft (2) at equal distances and symmetrically; An agglomeration processing component, the agglomeration processing component comprising a filter plate (101) horizontally arranged inside a drying cylinder (1) and movably connected to a rotating shaft (2), the inner wall of the drying cylinder (1) being equidistantly and circumferentially fixedly connected to a vertical rod (102) through a connecting seat, and the vertical rod (102) and the filter plate (101) being slidably connected, the outer portion of the vertical rod (102) being sleeved with a spring (103), the bottom of the filter plate (101) being symmetrically and fixedly connected to an arc block (104), and the bottom surface of the arc block (104) being of an inclined design, and the outer portion of the rotating shaft (2) being symmetrically and rotatably connected to a roller (105); A water vapor removal component, the water vapor removal component comprising an exhaust chamber (201) symmetrically fixedly connected to the top of a drying cylinder (1), an air inlet pipe (202) fixedly connected between the exhaust chamber (201) and the drying cylinder (1), an exhaust pipe (203) fixedly connected between the exhaust chamber (201) and the drying cylinder (1), a baffle net symmetrically arranged inside the exhaust pipe (203), water-absorbing particles (204) filled between two groups of the baffle nets, the exhaust chamber (201) and the drying cylinder (1) being connected to each other. The inner part of the drying cylinder (1) is movably connected to a piston plate (205), the bottom of the piston plate (205) is fixedly connected to a connecting rod (206), and the bottom end of the connecting rod (206) extends to the inside of the drying cylinder (1), and the top of the inner cavity of the drying cylinder (1) is symmetrically rotatably connected to a crankshaft (207), the outer movably sleeve of the crankshaft (207) is provided with a sleeve (208), and a connecting rod (209) is hinged between the sleeve (208) and the connecting rod (206) through a hinge.

2. A carbon nanotube drying device as claimed in claim 1, characterized in that: A cross bar (106) is symmetrically fixedly connected to the outer side of the upper portion of the rotating shaft (2).

3. The carbon nanotube drying device according to claim 1, characterized in that: A stopper is fixedly connected to the top end of the vertical rod (102).

4. The carbon nanotube drying device according to claim 1, characterized in that: The two ends of the spring (103) are fixedly connected to the connecting seat and the filter plate (101) respectively.

5. The carbon nanotube drying device according to claim 1, characterized in that: Both the air inlet pipe (202) and the air outlet pipe (203) are provided with a one-way valve (210); the opening direction of the one-way valve (210) inside the air inlet pipe (202) is consistent with the direction in which hot air flows in, and the opening direction of the one-way valve (210) inside the air outlet pipe (203) is consistent with the direction in which hot air flows out.

6. The carbon nanotube drying device according to claim 1, characterized in that: A filter is fixedly connected to the outside of the air inlet of the air inlet pipe (202).

7. The carbon nanotube drying device according to claim 1, characterized in that: Limiting rings are provided on both sides of the sleeve (208), and the limiting rings are fixedly connected to the crankshaft (207).

8. The carbon nanotube drying device according to claim 1, characterized in that: The outside of the rotating shaft (2) and one end of the crankshaft (207) are both fixedly connected with bevel gears (4), and the bevel gears (4) are meshingly connected with each other.

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