Carbon nanotube dispersion liquid vacuum defoaming device

Abstract

The utility model discloses a vacuum defoaming device for carbon nanotube dispersion liquid, including device body and its inside for dispersing stirring and vacuum defoaming processing jar, the upper portion of processing jar is provided with with its opening place cover and keeps the sealed jar cover in the processing jar is in sealed state, through setting rotatable control ring a and the steel cord a who is connected with it, after sealed jar cover closes, operating personnel only need to rotate control ring a, can through steel cord a synchronous pull all vertical pole and pressing plate move down, and one -time completion is to the even pressure of sealed jar cover circumference, changed the tedious operation of traditional equipment needing manual one by one, step by step tight multiple pressure mechanism, significantly reduced the auxiliary time, because the pressure power of all pressing plate all comes from the rotation of same component, guarantees the pressure that applies on the circumference of sealed jar cover is synchronous and even, avoids the uneven force of sealed jar cover, local sealing problem of not strict of artificial tight mode because of the different torque.

Description

Technical Field

[0001] This utility model relates to the technical field of vacuum degassing devices, specifically to a vacuum degassing device for carbon nanotube dispersions. Background Technology

[0002] In the preparation of carbon nanotube dispersions, a vacuum degassing device is typically required to remove air bubbles introduced during stirring and air trapped inside the slurry. In the prior art, a common vacuum degassing device is a lifting vacuum disperser, whose basic structure includes a processing tank, a lifting stirring mechanism, and a sealing tank lid for sealing the processing tank.

[0003] When operating the equipment, the medium containing carbon nanotube powder, solvent and additives is first poured into the treatment tank. Then the stirring device is driven to descend, which causes the sealing tank cover above to close with the opening of the treatment tank. In order to achieve the seal required for the vacuum environment, multiple spiral clamping mechanisms are set around the treatment tank. The operator needs to manually tighten these clamping structures step by step to ensure that the sealing tank cover and the treatment tank are evenly stressed and form an effective seal. However, each work cycle requires multiple manual tightening and loosening operations, which greatly increases preparation and auxiliary time; and manual operation makes it difficult to ensure that the tightening torque of each clamping structure is completely consistent, which can easily lead to uneven force between the sealing tank cover and the treatment tank, resulting in local sealing failure. Utility Model Content

[0004] (a) Technical problems to be solved In view of the above-mentioned shortcomings and deficiencies of the prior art, this utility model provides a vacuum degassing device for carbon nanotube dispersion, which solves the technical problem that it is difficult to ensure that the tightening torque of each clamping structure is completely consistent during manual operation, which easily leads to uneven force between the sealing tank cover and the treatment tank, thus causing local sealing failure.

[0005] (II) Technical Solution To achieve the above objectives, the main technical solutions adopted by this utility model include: This utility model provides a vacuum degassing device for carbon nanotube dispersions.

[0006] The vacuum degassing device for carbon nanotube dispersions proposed in this embodiment includes: a device body; A processing tank located inside the main body of the device for dispersion, stirring and vacuum degassing; A sealing tank cover is installed at the opening of the processing tank and keeps the processing tank in a sealed state. A clamping assembly, including a clamping element disposed on the surface of a processing tank and used to clamp the tank lid after it has been sealed closed; And a release mechanism that releases pressure on the sealed can lid after the clamping mechanism is released.

[0007] Optionally, the clamping element includes: A vertical rod is provided on the surface of the processing tank and located at the edge of the sealed tank lid; A pressure plate, located at the upper end of the vertical rod and above the sealing can lid, has an inclined design at its upper part to press the sealing can lid tightly after it is closed.

[0008] Optionally, the clamping element further includes: The guide rail is coaxial with the vertical rod and fixed to the surface of the processing tank; The slide block slides vertically on the inner wall of the guide rail, and its side near the vertical rod is fixedly connected to the vertical rod to limit the vertical movement of the vertical rod.

[0009] Optionally, the clamping element further includes: Control ring a, which rotates on the surface of the processing tank via an annular guide rail fixed to the surface of the processing tank; Steel rope a is fixed to the lower end of the vertical rod, and its lower end is fixedly connected to the surface of the control ring a. When the control ring a rotates, the vertical rod and the pressure plate above it can be pulled down through the steel rope a to perform a pressing operation on the sealing tank cover.

[0010] Optionally, the loosening element includes: The slide groove is located on the side of the pressure plate near the vertical rod, and the cross-sectional shape of the slide groove is T-shaped. The slider is embedded and slides in the groove, and its lower end is fixedly connected to the vertical rod to guide the pressure plate horizontally.

[0011] Optionally, the loosening component further includes: A traction wheel, which is mounted on the surface of a vertical rod via a bracket; Steel rope b, which is fixed to the side of the pressure plate near the traction wheel, and the steel rope b is overlapped into the rope groove of the traction wheel; Control ring b, which is consistent with control ring a and both rotate on the surface of the treatment tank via an annular guide rail fixed to the surface of the treatment tank, is located below control ring a. It is used to pull steel rope b during rotation and, in conjunction with traction wheel, pull the pressure plate horizontally away from the sealing tank cover to relieve the pressure on the sealing tank cover.

[0012] (III) Beneficial Effects The beneficial effects of this utility model are: (1) By setting a rotatable control ring a and a steel rope a connected to it, after the sealing tank cover is closed, the operator only needs to rotate the control ring a to pull all the vertical rods and pressure plates down synchronously through the steel rope a, and complete the uniform pressing of the sealing tank cover in one go. This completely changes the cumbersome operation of traditional equipment that requires manual tightening of multiple spiral pressing mechanisms one by one, and significantly reduces auxiliary time.

[0013] (2) Since the clamping power of all the pressure plates comes from the rotation of the same component and is transmitted through steel rope a, it ensures that the clamping force applied to the circumferential direction of the sealed can cover is synchronous and uniform, effectively avoiding the problem of uneven force on the sealed can cover and poor local sealing caused by the different torques in the traditional manual tightening method. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure in the embodiment; Figure 2 This is a schematic diagram showing the disassembled processing tank in the embodiment; Figure 3 This is a schematic diagram of the clamping assembly in the embodiment; Figure 4 This is a structural breakdown diagram of the clamping and releasing components in the embodiment; Figure 5 This is a schematic diagram of the slide and slider in the embodiment.

[0015] [Explanation of Labels in the Attached Image] 100. Device body; 200. Processing tank; 210. Sealing tank lid; 300. Clamping assembly; 310. Control ring a; 311. Vertical rod; 312. Pressure plate; 313. Guide rail; 314. Slide block; 315. Traction wheel; 316. Steel rope b; 317. Steel rope a; 318. Slider; 319. Spring; 3110. Control ring b. Detailed Implementation

[0016] To better explain and facilitate understanding of this utility model, a detailed description of its specific embodiments is provided below with reference to the accompanying drawings. In this document, directional terms such as "upper," "lower," etc., are used interchangeably with other directional terms. Figure 1 The orientation is used as a reference.

[0017] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0018] like Figure 1-5 As shown, this embodiment proposes a vacuum degassing device for carbon nanotube dispersions, including a device body 100 and a processing tank 200 inside for dispersion stirring and vacuum degassing. The processing tank 200 is located inside the device body 100 and is the main container for stirring and vacuum degassing the carbon nanotube dispersion. The processing tank 200 is usually also connected to a vacuum system and a stirring drive system, which are existing mature technologies and will not be described in detail here. A sealing tank cover 210 is provided above the processing tank 200, which is combined with the opening of the processing tank 200 to keep the processing tank 200 in a sealed state. It is used to cover the opening of the processing tank 200 and together with the processing tank 200 to form a sealed space to create the vacuum environment required for degassing.

[0019] During the degassing process, the operator first pours the medium containing carbon nanotube powder, solvent and additives into the treatment tank 200. Then, the drive device in the main body 100 is opened and drives the stirring device and the sealing tank cover 210 to descend until the sealing tank cover 210 closes with the opening of the treatment tank 200. The sealing tank cover 210 then contacts the sealing ring at the edge of the treatment tank 200 and forms a sealed space.

[0020] The clamping assembly 300 is disposed on the surface of the processing tank 200 and acts on the sealing tank cover 210. It includes a clamping member disposed on the surface of the processing tank 200 and used to clamp the sealing tank cover 210 after it is closed, and a releasing member to release the pressure on the sealing tank cover 210 after the clamping member is released.

[0021] The clamping components include: a vertical rod 311, which is disposed on the surface of the treatment tank 200 and at the edge of the sealing tank cover 210; and a pressure plate 312, which is located at the upper end of the vertical rod 311 and at the upper part of the sealing tank cover 210, and its upper part is designed to be inclined to clamp the sealing tank cover 210 after it is closed.

[0022] To ensure a tight seal between the sealing ring on the tank lid 210 and the edge of the treatment tank 200, the staff first followed... Figure 2Rotating the control ring a310 counterclockwise causes the lower end of the steel rope a317 to move circumferentially. The upper end of the steel rope a317 then pulls the vertical rod 311 and the pressure plate 312 above it down. The lower end of the pressure plate 312 contacts the sealing tank cover 210, thus pressing the sealing tank cover 210 to make it tightly contact the sealing ring at the edge of the treatment tank 200 to form an effective seal.

[0023] The clamping component also includes: a guide rail 313, which is coaxial with the vertical rod 311 and fixed to the surface of the processing tank 200; and a slide 314, which slides vertically on the inner wall of the guide rail 313, and its side near the vertical rod 311 is fixedly connected to the vertical rod 311 for vertically limiting the vertical rod 311.

[0024] When the vertical rod 311 is pulled, the guide rail 313 and the slide block 314 can effectively limit the vertical rod 311, ensuring the stability of the vertical rod 311 under force.

[0025] The clamping component also includes: a control ring a310, which rotates on the surface of the treatment tank 200 via an annular guide rail 313 fixed to the surface of the treatment tank 200; and a steel rope a317, which is fixed to the lower end of the vertical rod 311 and its lower end is fixedly connected to the surface of the control ring a310. When the control ring a310 rotates, the steel rope a317 can pull the vertical rod 311 and the pressure plate 312 above it to move down and perform a clamping operation on the sealed tank cover 210.

[0026] By using multiple steel ropes a317, vertical rods 311, and pressure plates 312 driven by the same component (control ring a310), the clamping force applied to the circumferential direction of the sealing can cover 210 is effectively ensured to be synchronous and uniform, effectively avoiding the problem of uneven force on the sealing can cover 210 and local poor sealing caused by inconsistent torque in the traditional manual tightening method.

[0027] After the sealed container lid 210 is tightly closed, the staff can start the vacuum system to evacuate the sealed processing container 200 to the required vacuum level. Then, the stirring mechanism is started to efficiently disperse and degas the carbon nanotube dispersion according to the preset parameters such as speed and time. During this process, the uniform clamping force ensures the stability of the vacuum environment.

[0028] After the dispersion and degassing processes are completed, stop stirring; introduce air into the treatment tank 200 to release the vacuum and restore the pressure inside the tank to normal pressure.

[0029] Then, the control ring a310 is rotated in the opposite direction to the initial position, the lower end of the steel rope a317 is reset, the upper end will no longer pull the vertical rod 311, and the vertical rod 311 and the pressure plate 312 above it will also release the pressure on the sealed tank cover 210.

[0030] The release mechanism also includes: a traction wheel 315, which is mounted on the surface of the vertical rod 311 via a bracket; a steel rope b316, which is fixed to the side of the pressure plate 312 near the traction wheel 315 and overlaps into the rope groove of the traction wheel 315; and a control ring b3110, which is identical to the control ring a310 and both rotate on the surface of the treatment tank 200 via an annular guide rail 313 fixed to the surface of the treatment tank 200. The control ring b3110 is located below the control ring a310 and is used to pull the steel rope b316 during rotation and, in conjunction with the traction wheel 315, to horizontally pull the pressure plate 312 away from the sealed tank cover 210, thereby relieving the pressure on the sealed tank cover 210.

[0031] At this time, the operator can rotate the control ring b3110 in any direction. When the control ring b3110 rotates, it drives the lower end of the steel rope b316 to rotate circumferentially. At this time, the upper end of the steel rope b316 will pull the pressure plate 312 to move horizontally. At this time, the traction wheel 315 can limit the steel rope b316 to ensure the smoothness of the pressure plate 312 when it is pulled outward.

[0032] As the pressure plate 312 gradually moves away from the sealing tank cover 210, the multi-point restrictions on the upper part of the sealing tank cover 210 will be lifted. At this time, the personnel control the stirring device and the sealing tank cover 210 to rise through the control system of the device body 100, and discharge the high-quality carbon nanotube dispersion that has completed the degassing treatment from the discharge port, so that subsequent processes can be carried out.

[0033] The release mechanism includes: a slide groove, which is located on the side of the pressure plate 312 near the vertical rod 311, and the slide groove has a T-shaped cross-section; a slider 318, which is embedded in and slides within the slide groove, and its lower end is fixedly connected to the vertical rod 311 to guide the pressure plate 312 horizontally; and two springs 319, which are symmetrically fixed to the inner wall of the slide groove, and the other end of the springs 319 is fixedly connected to the sliders 318.

[0034] In the initial state, the sealing lid 210 is positioned above the processing tank 200 along with the stirring device. At this time, the pressure plate 312 is in an extended state through the spring 319. The circumference of the four pressure plates 312 is smaller than the circumference of the sealing lid 210. When the sealing lid 210 moves down with the stirring device, since the upper end of the sealing lid 210 is designed to be inclined, when the lower edge of the sealing lid 210 is pressed against the inclined surface of the pressure plate 312, the four pressure plates 312 will be pressed outward simultaneously until the sealing lid 210 moves down to below the pressure plate 312. The spring 319 will no longer be compressed and will drive the pressure plate 312 to extend outward again and be on the surface of the sealing lid 210. At this time, the sealing lid 210 can be pressed using the above-mentioned clamping components.

[0035] Working principle: During the degassing operation, personnel first pour the medium containing carbon nanotube powder, solvent, and additives into the treatment tank 200. Then, the drive device in the main body 100 opens, causing the stirring device and the sealing tank cover 210 to descend until the sealing tank cover 210 closes with the opening of the treatment tank 200. To ensure tight contact between the sealing tank cover 210 and the sealing ring at the edge of the treatment tank 200, the personnel first follow... Figure 2 Rotating the control ring a310 counterclockwise causes the lower end of the steel rope a317 to move circumferentially. The upper end of the steel rope a317 then pulls the vertical rod 311 and its upper pressure plate 312 downwards. The lower end of the pressure plate 312 contacts the sealing tank cover 210, pressing it down to ensure a tight seal between the sealing tank cover 210 and the sealing ring at the edge of the treatment tank 200. After the sealing tank cover 210 is tightly closed, the operator can activate the vacuum system to evacuate the sealed treatment tank 200 to the required vacuum level. Then, the stirring mechanism is activated to efficiently disperse and degas the carbon nanotube dispersion according to preset parameters such as rotation speed and time. After the dispersion and degassing process is complete, stirring is stopped; air is introduced into the treatment tank 200 to release the vacuum. The pressure inside the tank is restored to normal. Then, the control ring a310 is rotated in the reverse direction to the initial position. The lower end of the steel rope a317 is reset, and the upper end will no longer pull the vertical rod 311. The vertical rod 311 and the pressure plate 312 above it will also release the pressure on the sealed tank cover 210. At this time, the operator can rotate the control ring b3110 in any direction. When the control ring b3110 rotates, it drives the lower end of the steel rope b316 to rotate circumferentially. At this time, the upper end of the steel rope b316 will pull the pressure plate 312 to move horizontally. At this time, the traction wheel 315 can limit the steel rope b316 to ensure the smoothness of the pressure plate 312 when it is pulled outward. Finally, the operator controls the stirring device and the sealed tank cover 210 to rise through the control system of the device body 100, and discharges the high-quality carbon nanotube dispersion that has completed the degassing treatment from the outlet, so that the subsequent process can be carried out.

[0036] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0038] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0040] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A vacuum degassing device for carbon nanotube dispersions, characterized in that, include: Device body (100); A processing tank (200) is installed inside the main body (100) for dispersion, stirring and vacuum degassing. A sealing tank cover (210) is provided at the opening of the processing tank (200) and keeps the processing tank (200) in a sealed state; The clamping assembly (300) includes a clamping element disposed on the surface of the processing tank (200) and is used to clamp the sealed tank lid (210) after it is closed; And a release element that releases pressure on the sealed can lid (210) after the clamping element is released.

2. The vacuum degassing device for carbon nanotube dispersions as described in claim 1, characterized in that: The clamping components include: A vertical rod (311) is provided on the surface of the treatment tank (200) and at the edge of the sealed tank cover (210); The pressure plate (312) is located at the upper end of the vertical rod (311) and above the sealing can lid (210). Its upper part is designed to be inclined to press the sealing can lid (210) tightly after it is closed.

3. The vacuum degassing device for carbon nanotube dispersions as described in claim 2, characterized in that: The clamping components also include: The guide rail (313) and the vertical rod (311) are coaxially designed and fixed to the surface of the processing tank (200); The slide (314) slides vertically on the inner wall of the guide rail (313). The side of the slide (314) closest to the vertical rod (311) is fixedly connected to the vertical rod (311) to limit the vertical movement of the vertical rod (311).

4. The vacuum degassing device for carbon nanotube dispersions as described in claim 3, characterized in that: The clamping components also include: Control ring a (310) rotates on the surface of the processing tank (200) via an annular guide rail (313) fixed to the surface of the processing tank (200); Steel rope a (317) is fixed to the lower end of the vertical rod (311), and its lower end is fixedly connected to the surface of the control ring a (310). When the control ring a (310) rotates, it can pull the vertical rod (311) and the pressure plate (312) above it down through the steel rope a (317) and perform a pressing operation on the sealing tank cover (210).

5. The vacuum degassing device for carbon nanotube dispersions as described in any one of claims 1-4, characterized in that: The loosened parts include: The slide is located on the side of the pressure plate (312) near the vertical rod (311), and the cross-sectional shape of the slide is T-shaped. The slider (318) is embedded and slides in the groove. Its lower end is fixedly connected to the vertical rod (311) for horizontal guidance of the pressure plate (312). There are two springs (319) that are symmetrically fixed to the inner wall of the groove. The other end of the spring (319) is fixedly connected to the slider (318).

6. The vacuum degassing device for carbon nanotube dispersions as described in claim 5, characterized in that: The loosened parts also include: The traction wheel (315) is mounted on the surface of the vertical rod (311) via a bracket; Steel rope b (316) is fixed to the side of the pressure plate (312) near the traction wheel (315), and steel rope b (316) is overlapped into the rope groove of the traction wheel (315). Control ring b (3110) is consistent with control ring a (310) and both rotate on the surface of the treatment tank (200) via an annular guide rail (313) fixed to the surface of the treatment tank (200). Control ring b (3110) is located below control ring a (310) and is used to pull steel rope b (316) during rotation and cooperate with traction wheel (315) to pull pressure plate (312) horizontally away from the sealing tank cover (210) to relieve the pressure on the sealing tank cover (210).

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