A filtering device for fullerene production

Abstract

The present invention relates to a filtering device for fullerene production, comprising: a cylinder body provided with an air inlet and an air outlet; a filter bag disposed inside the cylinder body, the filter bag being disposed between the air flow paths of the air inlet and the air outlet, the open end of the filter bag facing the air inlet and fixedly arranged; a plurality of rotating support rings sequentially arranged from top to bottom on the periphery of the filter bag, the rotating support rings being provided with a plurality of filtering holes, the rotating support rings being driven by a rotating motor, and the aperture diameters of the filtering holes of the rotating support rings from top to bottom increasing successively. When the filter bag is working, the air flow at the air inlet passes through the filter bag and flows to the air outlet through the filtering holes, and the air flow causes the area of the filter bag corresponding to the filtering holes to form a bulge, thereby increasing the local tension. The larger the aperture diameter of the filtering hole, the greater the local tension formed on the filter bag; a pulling device disposed above the open end of the filter bag, the pulling device being used to pull the closed end of the filter bag towards the open end.

Description

Technical Field

[0001] The present invention relates to the field of fullerene production equipment, and specifically refers to a filtering device for fullerene production. Background Art

[0002] Fullerene is a unique carbon nanomaterial, whose molecular structure presents a closed cage shape, has excellent electron transport ability and antioxidant properties, and shows broad applications in the fields of nanotechnology, energy storage, and biomedicine.

[0003] In the process of production and preparation of fullerene, hydrocarbons can be decomposed and recombined under high-temperature environment to obtain powdered fullerene and gas by-products such as hydrogen and hydrocarbons. In order to filter and separate the powdered fullerene, a filtering device is required. In the prior art, a bag filter is generally used for filtering and separation. Since the size of fullerene is usually about 1 nm, in the process of filtering and separating fullerene, high-temperature reaction may generate particles such as soot-like amorphous carbon and fullerene. These impurities are easily adsorbed on the surface of the filter screen, resulting in blockage, reducing the filtering efficiency, and making it necessary to frequently replace the filter bag in the prior art.

[0004] Designing a filtering device for fullerene production to solve the problems existing in the above prior art is the purpose of the research of the present invention. Summary of the Invention

[0005] Aiming at the problems existing in the above prior art, the present invention provides a filtering device for fullerene production, which can effectively solve at least one of the problems existing in the above prior art.

[0006] The technical solution of the present invention is as follows:

[0007] A filtering device for fullerene production, comprising:

[0008] A cylinder body, which is provided with an air inlet and an air outlet;

[0009] A filter bag, which is arranged inside the cylinder body, and is arranged between the air flow paths of the air inlet and the air outlet. The open end of the filter bag faces the air inlet, and the open end of the filter bag is fixedly arranged;

[0010] A plurality of rotating support rings, which are sequentially arranged from top to bottom on the periphery of the filter bag. The rotating support rings are provided with a plurality of filtering holes. The rotating support rings are driven by a rotating motor, and the aperture of the filtering holes of the rotating support rings from top to bottom increases in sequence. When the filter bag works, the air flow at the air inlet passes through the filter bag and flows out through the filtering holes to the air outlet. The air flow makes the area of the filter bag corresponding to the filtering holes form a protrusion, thereby increasing the local tension. The larger the aperture of the filtering hole, the greater the local tension formed on the filter bag;

[0011] The pulling device is arranged above the open end of the filter bag and is used to pull the closed end of the filter bag toward the open end.

[0012] Furthermore, it includes an unwinding device, the closed end of the filter bag is rolled up and arranged on the unwinding device, and when the pulling device pulls the filter bag, the unwinding device unwinds the filter bag.

[0013] Furthermore, it includes a clamping device, which is arranged between the closed end of the filter bag and the unwinding device, and the clamping device is clamped on one end of the filter bag to form a closure.

[0014] Furthermore, the pulling device includes a driving wheel and a passive wheel, the driving wheel and the passive wheel are respectively arranged on the outside and inside of the filter bag, and the driving wheel is driven by a corresponding driving motor.

[0015] Furthermore, the driving wheel is a grooved roller, and a gap is set between the driving wheel and the driven wheel.

[0016] Furthermore, the pulling device is more than 15 cm away from the open end of the filter bag.

[0017] Furthermore, the rotating support ring includes a rotating shaft, the outer ring of the rotating shaft is fixedly connected to the inner wall of the cylinder through a connecting rod, the inner ring of the rotating shaft is fixedly connected to the support ring, the support ring is provided with a gear ring, and the rotating motor drives the gear ring to rotate through the gear.

[0018] Furthermore, a control system is included, wherein the air inlet and the air outlet are respectively provided with pressure sensors, and when the pressure difference between the air inlet and the air outlet is greater than a preset threshold, the control system controls the rotary motor to rotate a preset angle;

[0019] When the pressure difference does not decrease after the control system controls the rotating motor to rotate a preset angle, the control system controls the pulling device to pull the filter bag downward by a preset length.

[0020] Therefore, the present invention provides the following effects and / or advantages:

[0021] In the present application, the filter bag is fitted around the rotating support ring during operation, and the filter bag is pressed against the filter hole under the action of the airflow, so that the area of the filter bag bulges outward and is stretched, making the gap in the area of the filter bag larger. The aperture of the filter hole of the rotating support ring increases from top to bottom, so that the gap of the area of the filter bag corresponding to the filter hole increases from top to bottom, which can achieve the interception of particles of different sizes by classification. At the same time, the present application is provided with a pulling device, which can pull the filter bag downward so that the filter bag corresponds to a larger filter hole, so that the area of the filter bag that was originally blocked can correspond to the larger filter hole, thereby having a larger pulling amount, making the pores of the filter bag larger and able to intercept larger particles of powder.

[0022] Through the unwinding device of the present application, one end of the filter bag can be unwound, providing sufficient length of the filter bag when the pulling device pulls downward, thereby extending the overall working duration of the filter bag and avoiding the problem of frequent filter bag replacement.

[0023] Other features and advantages of the present invention will be described in the subsequent specification, and in part, will become apparent from the specification or will be understood by implementing the present invention. The objectives and other advantages of the present invention are achieved and obtained by the structures specifically pointed out in the specification and the drawings.

[0024] It should be understood that the above summary and the following detailed description of the present invention are exemplary and explanatory, and are intended to provide further explanation of the present invention as claimed. Brief Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0026] Figure 2 It is a structural sectional view of an embodiment of the present invention.

[0027] Figure 3 It is a schematic structural diagram of the present invention after hiding the cylinder body.

[0028] Figure 4 It is a schematic structural diagram of the pulling device.

[0029] Figure 5 It is a schematic diagram of the change of the filter bag after being stretched by different filter holes.

[0030] Figure 6 It is a schematic diagram of the state of the filter bag after being stretched downward by the pulling device.

[0031] Description of the Reference Numerals:

[0032] Cylinder body 1, air inlet 11, air outlet 12, filter bag 2, rotating support ring 3, filter holes 31, rotating motor 32, rotating shaft 33, connecting rod 34, pulling device 4, driving wheel 41, driven wheel 42, driving motor 43, unwinding device 5, clamping device 6. Detailed Description of the Embodiment

[0033] For the convenience of those skilled in the art to understand, the embodiment will be further described in detail with reference to the drawings for the structure of the present invention:

[0034] Reference Figures 1-4 , a filtering device for fullerene production, comprising:

[0035] Cylinder body 1, the cylinder body 1 is provided with an air inlet 11 and an air outlet 12;

[0036] The filter bag 2 is arranged inside the cylinder body 1. The filter bag 2 is arranged between the air flow paths of the air inlet 11 and the air outlet 12. The open end of the filter bag 2 faces the air inlet 11, and the open end of the filter bag 2 is fixedly arranged;

[0037] In this embodiment, gases such as fullerenes, hydrogen, and hydrocarbons produced are input into the air inlet 11 together. The granular fullerenes are intercepted by the filter bag 2, and the remaining gases pass through the filter bag 2 and are output from the air outlet 12. The structure and preparation method of the filter bag 2 are prior arts.

[0038] The rotating support rings 3, with a number of them, are arranged successively from top to bottom on the periphery of the filter bag 2. The rotating support rings 3 are provided with a plurality of filter holes 31. The rotating support rings 3 are driven by a rotating motor 32. The apertures of the filter holes 31 of the rotating support rings 3 from top to bottom increase successively. When the filter bag 2 is working, the air flow at the air inlet 11 passes through the filter bag 2 and flows to the air outlet 12 through the filter holes 31. The air flow causes the area of the filter bag 2 corresponding to the filter holes 31 to form a bulge, thereby increasing the local tension. The larger the aperture of the filter hole 31, the greater the local tension formed on the filter bag 2;

[0039] In this embodiment, the rotating support rings 3 rotate and surround the periphery of the filter bag 2. When the filter bag 2 is working, the filter bag 2 adheres to the inner wall of the rotating support ring 3 under the action of the air flow. The rotating support rings 3 can limit the expansion amount of the filter bag 2, prevent the filter bag 2 from being damaged due to excessive air flow, and the rotating support rings 3 can limit the shape of the filter bag 2 after expansion. Since the rotating support rings 3 are provided with filter holes 31, the air flow can only pass through the area of the filter bag 2 corresponding to the filter holes 31 and flow to the air outlet 12 through the filter holes 31. The air flow pressure causes the filter bag 2 to expand outwards, and a local bulge is formed in the area where it abuts against the filter holes 31 of the rotating support ring 3. When the air flow passes through the filter holes 31 of the rotating support ring 3, a local stretching effect is generated on the filter bag 2, resulting in a more obvious bulge deformation on the surface of the filter bag 2. After the local part of the filter bag 2 is stretched, the pores inside it increase. When the filter holes 31 of the rotating support ring 3 are larger, the local stretching effect on the filter bag 2 when the air flow passes through is stronger, and the local pores of the filter bag 2 become larger, as Figure 5 shown.

[0040] On the one hand, after the filter bag 2 is locally stretched and the pores become larger, the originally blocked area of the filter bag 2 can continue to intercept graphene particles. On the other hand, the apertures of the filter holes 31 of the rotating support rings 3 from top to bottom increase successively, so that the local tension at the lower part of the filter bag 2 is larger and the pores are also larger, allowing part of the by-products of 1 - 5 nm level to penetrate, realizing preliminary classification. The local tension at the upper part of the filter bag 2 is smaller and the pores are also smaller, which is used to mainly intercept fullerenes of 0.5 - 1 nm level.

[0041] Meanwhile, the rotating support ring 3 is driven by a rotating motor 32, so that it can rotate along the circumferential direction of the filter bag 2, making the filter holes 31 of the rotating support ring 3 correspond to different regions of the filter bag 2, enabling different regions of the filter bag 2 to participate in filtration and be stretched by the corresponding filter holes 31.

[0042] A pulling device 4 is arranged above the open end of the filter bag 2, and the pulling device 4 is used to pull the closed end of the filter bag 2 towards the open end.

[0043] In this embodiment, the pulling device 4 is arranged at the open end of the filter bag 2, and the bottommost rotating support ring 3 is at least 15 cm away from the open end of the filter bag 2, so as to provide sufficient accommodation space for the filter bag 2 after being pulled downward. The pulling device 4 is arranged above the open end of the filter bag 2. When the pulling device 4 works, it can pull the area above the open end of the filter bag 2 downward, so that the filter bag 2 moves downward, and the lower end of the filter bag 2 curls or folds. As Figure 6 shown, at this time, the area of the filter bag 2 originally corresponding to the first-layer rotating support ring 3 corresponds to the second-layer rotating support ring 3, and the area of the filter bag 2 originally corresponding to the second-layer rotating support ring 3 corresponds to the third-layer rotating support ring 3... The technical effect is that the area of the filter bag 2 originally corresponding to the first-layer rotating support ring 3 is blocked by fine fullerene powder. At this time, the pulling device 4 pulls the filter bag 2 downward, and the area of the filter bag 2 originally corresponding to the first-layer rotating support ring 3 corresponds to the second-layer rotating support ring 3. At this time, the stretching amount of the filter bag 2 corresponding to the second-layer rotating support ring 3 by the filter holes 31 increases, the pores of the filter bag 2 become larger, and the area of the filter bag 2 originally blocked by fine fullerene powder can be stretched to intercept larger fullerene powder after being stretched. Thus, the pulling device 4 cooperating with the gradient setting of the pore diameters of the filter holes 31 of the rotating support ring 3 can achieve the hierarchical and multiple reuse of the filter bag 2, realize that the gaps during the operation of the filter bag 2 increase sequentially from top to bottom, and pull the filter bag 2 once every certain period of time, so that the gap during the operation of the filter bag 2 increases by one level.

[0044] Further, it includes an unwinding device 5. The closed end of the filter bag 2 is wound on the unwinding device 5. When the pulling device 4 pulls the filter bag 2, the unwinding device 5 unwinds the filter bag 2.

[0045] In this embodiment, the length of the filter bag 2 is greater than the total length of several combined rotating support rings 3, so that the top end of the filter bag 2 can be wound on the unwinding device 5. When the filter bag 2 works, the unwinding device 5 can gradually output the filter bag 2, so as to cooperate with the pulling device 4 to gradually move the filter bag 2 downward.

[0046] Further, it includes a clamping device 6, which is arranged between the closed end of the filter bag 2 and the unwinding device 5. The clamping device 6 clamps one end of the filter bag 2 to form a closure.

[0047] In this embodiment, the unwinding device 5 can periodically or gradually unwind one end of the filter bag 2. When not unwinding, the filter bag 2 is in operation. To prevent airflow within the filter bag 2 from flowing toward the unwinding device 5 and stretching the filter bag 2 wrapped around the unwinding device 5, an additional clamping device 6 can clamp the corresponding position, preventing airflow from passing through the clamped position. The clamping device 6 in this embodiment can be a pair of rollers with a gap.

[0048] Furthermore, the pulling device 4 includes a driving wheel 41 and a driven wheel 42 . The driving wheel 41 and the driven wheel 42 are respectively arranged on the outside and inside of the filter bag 2 . The driving wheel 41 is driven by a corresponding driving motor 43 .

[0049] Furthermore, the driving wheel 41 is a grooved roller, and a gap is provided between the driving wheel 41 and the driven wheel 42 .

[0050] Furthermore, the pulling device 4 is more than 15 cm away from the open end of the filter bag 2 .

[0051] In this embodiment, the filter bag 2 passes through the gap between the driving wheel 41 and the driven wheel 42. When the driving wheel 41 rotates, it can pull the portion of the filter bag 2 above the pulling device 4 downward. The portion of the filter bag 2 above the pulling device 4 is compressed and temporarily stored between the pulling device 4 and the open end of the filter bag 2 in the form of folds. This structure allows the filter bag 2 to be transported downward so that it passes through filter holes 31 of different sizes in sequence, and is stretched and expanded to different degrees, thereby intercepting particles of different sizes.

[0052] Furthermore, the rotating support ring 3 includes a rotating shaft 33, the outer ring of the rotating shaft 33 is fixedly connected to the inner wall of the cylinder 1 through a connecting rod 34, the inner ring of the rotating shaft 33 is fixedly connected to a support ring, and the support ring is provided with a gear ring. The rotating motor 32 drives the gear ring to rotate through a gear.

[0053] The outer ring of the rotating shaft 33 of this embodiment is connected by a number of radial connecting rods 34 arranged on the cylinder 1, so that the rotating shaft 33 is suspended inside the cylinder 1, and a support ring is provided on the inner ring of the rotating shaft 33 so that the support ring can rotate at a certain height position inside the cylinder 1.

[0054] Furthermore, a control system is included, wherein the air inlet 11 and the air outlet 12 are respectively provided with pressure sensors, and when the pressure difference between the air inlet 11 and the air outlet 12 is greater than a preset threshold, the control system controls the rotating motor 32 to rotate a preset angle;

[0055] When the differential pressure does not decrease after the control system controls the rotation motor 32 to rotate a preset angle, the control system controls the pulling device 4 to pull the filter bag 2 downward by a preset length.

[0056] In this embodiment, the operation of each component is controlled by the differential pressure between the air inlet 11 and the air outlet 12. When the differential pressure between the air inlet 11 and the air outlet 12 is greater than the preset threshold value, it indicates that different positions of the filter bag 2 are blocked by particulate matters of different sizes. At this time, rotating the rotating support ring 3 can make other positions of the filter bag 2 be used for filtration. When the differential pressure does not decrease after the control system controls the rotation motor 32 to rotate a preset angle, it indicates that different positions of the filter bag 2 have been blocked by particulate matters of corresponding sizes. It is necessary to pull the filter bag 2 downward to increase the local tension of the corresponding position of the filter bag 2 and increase the pore size of the filter bag 2 so that it can continue to be used for filtration.

[0057] It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of other elements or steps not listed in the claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention can be implemented by means of hardware including several different elements and by means of a suitably programmed computer. In a unit claim listing several devices, several of these devices may be embodied by the same item of hardware. The use of the words first, second, and third, etc. does not denote any order. These words may be interpreted as names.

[0058] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0059] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "connected to", "fixed" and other terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

Claims

1. A filtering device for fullerene production, characterized in that: include: A cylinder (1), wherein the cylinder (1) is provided with an air inlet (11) and an air outlet (12); A filter bag (2) is arranged in the cylinder (1), the filter bag (2) is arranged between the air flow path of the air inlet (11) and the air outlet (12), the open end of the filter bag (2) faces the air inlet (11), and the open end of the filter bag (2) is fixedly arranged; A plurality of rotating support rings (3) are sequentially arranged on the periphery of the filter bag (2) from top to bottom. The rotating support ring (3) is provided with a plurality of filter holes (31). The rotating support ring (3) is driven by a rotating motor (32). The apertures of the filter holes (31) of the rotating support ring (3) increase from top to bottom. When the filter bag (2) is working, the airflow of the air inlet (11) passes through the filter bag (2) and flows from the filter holes (31) to the air outlet (12). The airflow causes the area of the filter bag (2) corresponding to the filter holes (31) to form a bulge, thereby increasing local tension. The larger the aperture of the filter hole (31), the greater the local tension formed on the filter bag (2). A pulling device (4) is arranged above the open end of the filter bag (2), and the pulling device (4) is used to pull the closed end of the filter bag (2) toward the open end.

2. A filtering device for fullerene production according to claim 1, characterized in that: It comprises an unwinding device (5), the closed end of the filter bag (2) is wound up and arranged on the unwinding device (5), and when the pulling device (4) pulls the filter bag (2), the unwinding device (5) unwinds the filter bag (2).

3. A filtering device for fullerene production according to claim 2, characterized in that: It comprises a clamping device (6) arranged between the closed end of the filter bag (2) and the unwinding device (5), wherein the clamping device (6) clamps one end of the filter bag (2) to form a closure.

4. A filtering device for fullerene production according to claim 1, characterized in that: The pulling device (4) comprises a driving wheel (41) and a driven wheel (42), wherein the driving wheel (41) and the driven wheel (42) are respectively arranged on the outside and inside of the filter bag (2), and the driving wheel (41) is driven by a corresponding driving motor (43).

5. A filtering device for fullerene production according to claim 4, characterized in that: The driving wheel (41) is a grooved roller, and a gap is provided between the driving wheel (41) and the driven wheel (42).

6. A filtering device for fullerene production according to claim 1, characterized in that: The pulling device (4) is more than 15 cm away from the open end of the filter bag (2).

7. A filtering device for fullerene production according to claim 1, characterized in that: The rotating support ring (3) comprises a rotating shaft (33), the outer ring of the rotating shaft (33) is fixedly connected to the inner wall of the cylinder (1) via a connecting rod (34), the inner ring of the rotating shaft (33) is fixedly connected to a support ring, the support ring is provided with a gear ring, and the rotating motor (32) drives the gear ring to rotate via a gear.

8. The filtering device for fullerene production according to claim 1, characterized in that: A control system is included, wherein the air inlet (11) and the air outlet (12) are respectively provided with pressure sensors, and when the pressure difference between the air inlet (11) and the air outlet (12) is greater than a preset threshold, the control system controls the rotating motor (32) to rotate at a preset angle; When the pressure difference does not decrease after the control system controls the rotating motor (32) to rotate a preset angle, the control system controls the pulling device (4) to pull the filter bag (2) downward by a preset length.

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