Electric demagnetizing device

Abstract

The utility model discloses an electric demagnetizing device, which relates to the technical field of electric demagnetizing and comprises a demagnetizing tank and a rotary feeding pipe, the rotary feeding pipe is connected with a belt pulley through a rotating belt, the belt pulley is mounted at the output end of a servo motor, through holes and a diffusion cover are uniformly distributed on the rotary feeding pipe, and the diffusion cover is of an inverted conical structure. A plurality of diffusion covers are arranged on the rotary feeding pipe from top to bottom, screen holes are formed in fan blades of the diffusion covers, the diffusion covers are of an inverted-cone-shaped structure, the diffusion covers play a role in turbulent flow and dust raising, carbon nano tube powder enters an inner cavity of the rotary feeding pipe through the feeding end of the rotary feeding pipe, the rotary feeding pipe is controlled by a servo motor to continuously rotate, and the carbon nano tube powder enters the inner cavity of the rotary feeding pipe. Under the action of centrifugal force, the carbon nano tube powder is dispersed from the through holes, the diffusion cover continuously disturbs and raises the dispersed carbon nano tube powder, and the carbon nano tube powder is redistributed, so that the carbon nano tube powder is distributed more uniformly and is prevented from being concentrated, and the electric demagnetization performance is improved.

Description

Technical Field

[0001] This utility model relates to the field of electric demagnetization technology, and in particular to an electric demagnetization device. Background Technology

[0002] Carbon nanotubes, also known as buckytubes, are one-dimensional quantum materials with a unique structure. As one-dimensional nanomaterials, carbon nanotubes are lightweight, have a perfectly connected hexagonal structure, and possess many exceptional mechanical, electrical, and chemical properties. In recent years, with the deepening research on carbon nanotubes and nanomaterials, their broad application prospects have been continuously revealed.

[0003] In certain specific fields, such as lithium batteries, there are stricter requirements for the magnetic metal content in carbon nanotubes. After being pulverized by an air jet mill, the carbon nanotubes enter a transfer tank, then undergo demagnetization in an electrostatic demagnetizing unit. The discharge pipe of the electrostatic demagnetizing unit is connected to a negative pressure vacuum pump, and finally, the nanotubes are packaged by a packaging machine. Before being packaged and shipped, the carbon nanotubes undergo further electrostatic demagnetization to control the magnetic material content within the required range. The carbon nanotubes pulverized by the air jet mill are in powder form. In the electrostatic demagnetization process, to avoid smooth downstream movement of the material, a top-in, bottom-out material flow is generally chosen. Due to the negative pressure of the system, the carbon nanotube powder may concentrate towards the vacuum pump side, resulting in uneven distribution of the carbon nanotube powder inside the electrostatic demagnetizer. Alternatively, the vacuum pump's airflow may cause concentrated feeding or even complete feeding failure, leading to uneven distribution of the carbon nanotube powder and thus affecting the demagnetization effect of the carbon nanotubes in the electrostatic demagnetizing unit. Utility Model Content

[0004] In order to overcome the defect of uneven distribution of carbon nanotube powder in the prior art, this utility model provides an electric demagnetizing device.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: an electromagnetizing device, including a demagnetizing tank and a rotating feed pipe rotatably installed on the top of the demagnetizing tank. The bottom of the demagnetizing tank is provided with a waste discharge pipe, and the lower side of the demagnetizing tank is provided with a finished product discharge pipe. The feed end of the rotating feed pipe is located outside the demagnetizing tank, and the discharge end of the rotating feed pipe extends into the interior of the demagnetizing tank. The rotating feed pipe is connected to a pulley via a rotating belt. The pulley is installed at the output end of a servo motor. The servo motor is set on the outer wall of the demagnetizing tank. Through holes are evenly distributed on the rotating feed pipe located inside the demagnetizing tank. Several diffusion hoods are provided from top to bottom on the rotating feed pipe located inside the demagnetizing tank. The diffusion hoods are inverted conical structures. The diffusion hoods include an upper fixed ring and a lower fixed ring. The upper fixed ring and the lower fixed ring are connected and fixed by six sets of spaced fan blades. The fan blades are provided with sieve holes. The lower fixed ring is fixedly installed on the rotating feed pipe.

[0006] As a further improvement of this utility model, a bearing seat is installed on the outside of the rotary feed pipe, and the rotary feed pipe is mounted on the demagnetizing tank through the bearing seat.

[0007] As a further improvement of this utility model, the feed end of the rotary feed tube is provided with a feed hopper.

[0008] As a further improvement of this utility model, the lower part of the demagnetizing tank is provided with a support bracket.

[0009] As a further improvement of this utility model, a shock-absorbing seat is provided at the bottom of the support frame.

[0010] As a further improvement of this utility model, the bottom of the rotary feed pipe is provided with stirring blades.

[0011] Compared with the prior art, the present invention has the following advantages: In this solution, the rotary feed pipe is provided with several diffusion hoods from top to bottom. The fan blades of the diffusion hoods are provided with sieve holes. The diffusion hoods are inverted conical structures. The diffusion hoods play a role in turbulence and dust dispersion. The carbon nanotube powder enters the inner cavity of the rotary feed pipe through the feed end. The rotary feed pipe rotates continuously under the control of the servo motor. Under the action of centrifugal force, the carbon nanotube powder is dispersed from the through holes. The diffusion hoods continuously disturb and lift the dispersed carbon nanotube powder, redistributing the carbon nanotube powder, making the carbon nanotube powder distribution more uniform, avoiding the concentration of carbon nanotube powder, thereby improving the electromagnetism removal performance. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0013] Figure 1 This is a schematic diagram of the structure of an electric demagnetizing device according to the present invention.

[0014] Figure 2 This is a schematic diagram of the structure of the diffusion shroud of this utility model.

[0015] In the diagram: 1. Demagnetizing tank; 2. Rotary feed pipe; 3. Bearing housing; 4. Rotating belt; 5. Pulley; 6. Servo motor; 7. Through hole; 8. Feed hopper; 9. Waste discharge pipe; 10. Finished product discharge pipe; 11. Diffuser hood; 12. Upper fixing ring; 13. Lower fixing ring; 14. Fan blade; 15. Screen hole; 16. Support leg; 17. Vibration damping seat; 18. Stirring blade. Detailed Implementation

[0016] To make the technical solution and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0017] Reference Figure 1This utility model discloses an electromagnetizing device, including a demagnetizing tank 1 and a rotating feed pipe 2 rotatably mounted on the top of the demagnetizing tank 1. A coil is wound on the demagnetizing tank 1, and the coil generates a magnetic field when energized. A waste discharge pipe 9 is provided at the bottom of the demagnetizing tank 1, and a finished product discharge pipe 10 is provided on the lower side of the demagnetizing tank 1. The feed end of the rotating feed pipe 2 is located outside the demagnetizing tank 1, and the discharge end of the rotating feed pipe 2 extends into the interior of the demagnetizing tank 1. The rotating feed pipe 2 is connected to a pulley 5 through a rotating belt 4. The pulley 5 is mounted on the output end of a servo motor 6, which is located on the outer wall of the demagnetizing tank 1. Through holes 7 are evenly distributed on the rotating feed pipe 2 located inside the demagnetizing tank 1, and a plurality of diffuser covers 11 are provided from top to bottom on the rotating feed pipe 2 located inside the demagnetizing tank 1.

[0018] The rotary feed pipe 2 is equipped with a bearing seat 3 on its outside. The rotary feed pipe 2 is mounted on the demagnetizing tank 1 through the bearing seat 3, which makes the rotary feed pipe 2 rotate more stably on the demagnetizing tank 1. The feed end of the rotary feed pipe 2 is provided with a feed hopper 8, which makes the feeding smoother. The feed hopper 8 has a uniform depth to prevent carbon nanotube powder from flying out when the rotary feed pipe 2 rotates.

[0019] Reference Figure 2 The diffuser 11 has an inverted conical structure. The diffuser 11 includes an upper fixed ring 12 and a lower fixed ring 13. The upper fixed ring 12 and the lower fixed ring 13 are connected and fixed by six sets of spaced fan blades 14. The fan blades 14 are provided with screen holes 15. The lower fixed ring 13 is fixedly installed on the rotating feed pipe 2.

[0020] The rotary feed pipe 2 is equipped with several diffuser covers 11 from top to bottom. The fan blades 14 of the diffuser cover 11 are provided with sieve holes 15. The diffuser cover 11 has an inverted conical structure and plays the role of turbulence and dust removal. The demagnetizing tank 1 is powered on to generate a magnetic field. The carbon nanotube powder enters the inner cavity of the rotary feed pipe 2 through the feed end of the rotary feed pipe 2. The rotary feed pipe 2 is continuously rotated under the control of the servo motor 6. Under the action of centrifugal force, the carbon nanotube powder is dispersed from the through hole 7. The diffuser cover 11 continuously disturbs and lifts the dispersed carbon nanotube powder, redistributing the carbon nanotube powder to make the carbon nanotube powder distribution more uniform and avoid the concentration of carbon nanotube powder, thereby improving the electromagnetization performance. After the carbon nanotube powder is discharged through the finished product outlet pipe 10 by the negative pressure vacuum pump, the demagnetizing tank 1 is finally de-energized, and the magnetic metal adsorbed by the demagnetizing tank 1 falls off and is discharged through the waste outlet pipe 9.

[0021] The bottom of the rotary feed pipe 2 is equipped with a stirring blade 18, which can blow up some of the carbon nanotube powder scattered at the bottom of the demagnetizing tank 1, so that the diffusion hood 11 can redistribute the blown material.

[0022] The lower part of the demagnetizing tank 1 is provided with a support frame 16, and the bottom of the support frame 16 is provided with a shock-absorbing seat 17, thereby improving the overall stability of the equipment and reducing vibration.

[0023] It should be understood that the specific embodiments described herein are for understanding the present invention only and are not intended to limit the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

Claims

1. An electromagnetizing device, characterized in that: The system includes a demagnetizing tank (1) and a rotating feed pipe (2) rotatably mounted on the top of the demagnetizing tank (1). A waste discharge pipe (9) is located at the bottom of the demagnetizing tank (1), and a finished product discharge pipe (10) is located on the lower side of the demagnetizing tank (1). The feed end of the rotating feed pipe (2) is located outside the demagnetizing tank (1), and the discharge end of the rotating feed pipe (2) extends into the interior of the demagnetizing tank (1). The rotating feed pipe (2) is connected to a pulley (5) via a rotating belt (4). The pulley (5) is mounted on the output end of a servo motor (6), which is located within the demagnetizing tank (1). On the outer wall of the demagnetizing tank (1), the rotary feed pipe (2) inside the demagnetizing tank (1) is provided with through holes (7). The rotary feed pipe (2) inside the demagnetizing tank (1) is provided with several diffuser covers (11) from top to bottom. The diffuser cover (11) has an inverted cone structure. The diffuser cover (11) includes an upper fixed ring (12) and a lower fixed ring (13). The upper fixed ring (12) and the lower fixed ring (13) are connected and fixed by six sets of spaced fan blades (14). The fan blades (14) are provided with sieve holes (15). The lower fixed ring (13) is fixedly installed on the rotary feed pipe (2).

2. The electromagnetizing device according to claim 1, characterized in that: The rotary feed pipe (2) is externally mounted with a bearing housing (3), and the rotary feed pipe (2) is mounted on the demagnetizing tank (1) through the bearing housing (3).

3. The electromagnetizing device according to claim 2, characterized in that: The feed end of the rotary feed pipe (2) is equipped with a feed hopper (8).

4. The electromagnetizing device according to claim 3, characterized in that: The lower part of the demagnetizing tank (1) is provided with a support frame (16).

5. The electromagnetizing device according to claim 4, characterized in that: The bottom of the support leg (16) is equipped with a shock-absorbing seat (17).

6. The electromagnetizing device according to claim 5, characterized in that: The bottom of the rotary feed pipe (2) is equipped with stirring blades (18).

Images