Filtering device for fullerene production

Abstract

The present invention relates to a fullerene production filtration apparatus, which comprises: a cylinder provided with an air inlet and an air outlet; the filter bag is arranged in the cylinder body, the filter bag is arranged between airflow paths of the air inlet and the air outlet, the opening end of the filter bag faces the air inlet, and the opening end of the filter bag is fixedly arranged; the rotary supporting rings are sequentially arranged on the periphery of the filter bag from top to bottom, each rotary supporting ring is provided with a plurality of filter holes and driven by a rotary motor, the diameters of the filter holes of the rotary supporting rings from top to bottom are sequentially increased, and when the filter bag works, air flow of the air inlet penetrates through the filter bag and flows to the air outlet from the filter holes. The air flow enables the areas, corresponding to the filter holes, of the filter bag to form bulges so as to increase local tension, and the larger the filter holes with larger hole diameters form larger local tension on the filter bag; the traction device is arranged above the opening end of the filter bag, and the traction device is used for pulling the closed end of the filter bag towards the opening 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 with a closed cage-like molecular structure, excellent electron transport ability and antioxidant properties, showing broad applications in the fields of nanotechnology, energy storage and biomedicine.

[0003] In the process of fullerene production and preparation, hydrocarbons can be decomposed and recombined in a high-temperature environment to obtain powdered fullerene and gaseous 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 fullerene filtering and separation, high-temperature reactions 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 and reduced filtration efficiency, so that the filter bag needs to be frequently replaced 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] In view of the problems existing in the above prior art, the present invention aims to provide 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: 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 the open end of the filter bag being fixedly arranged; 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 filter holes. The rotating support rings are driven by a rotating motor, and the apertures of the filter holes of the rotating support rings from top to bottom increase in sequence. 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 filter holes, and the air flow causes the area of the filter bag corresponding to the filter holes to form a protrusion, thereby increasing the local tension. The larger the aperture of the filter hole, the greater the local tension formed on the filter bag; A pulling device disposed above the open end of the filter bag, and the pulling device is used to pull the closed end of the filter bag towards the open end.

[0007] Further, it includes an unwinding device. The closed end of the filter bag is wound and arranged on the unwinding device. When the pulling device pulls the filter bag, the unwinding device unwinds the filter bag.

[0008] Further, it includes a clamping device, which is arranged between the closed end of the filter bag and the unwinding device. The clamping device clamps one end of the filter bag to form a closure.

[0009] Further, the pulling device includes a driving wheel and a driven wheel. The driving wheel and the driven wheel are respectively arranged on the outer side and the inner side of the filter bag, and the driving wheel is driven by a corresponding driving motor.

[0010] Further, the driving wheel is a grooved roller, and the driving wheel and the driven wheel are arranged with a gap.

[0011] Further, the pulling device is more than 15 cm away from the open end of the filter bag.

[0012] Further, 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 with a support ring. The support ring is provided with a toothed ring, and the rotating motor drives the toothed ring to rotate through a gear.

[0013] Further, it includes a control system. Pressure sensors are respectively arranged at the air inlet and the air outlet. When the pressure difference between the air inlet and the air outlet is greater than a preset threshold value, the control system controls the rotating motor to rotate a preset angle; 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.

[0014] Therefore, the present invention provides the following effects and / or advantages: In this application, when the filter bag works, it fits around the rotating support ring. At the same time, under the action of air flow, the filter bag abuts against the filter holes, so that the area of the filter bag bulges outward and is stretched, making the gap in this area of the filter bag larger. Combined with the fact that the pore diameters of the filter holes of the rotating support ring from top to bottom increase in sequence, the gaps in the areas of the filter bag corresponding to the filter holes increase in sequence from top to bottom, enabling hierarchical interception of particulate matters of different sizes. At the same time, this application is provided with a pulling device, which can pull the filter bag downward, so that the filter bag corresponds to larger filter holes, so that the originally blocked area of the filter bag can correspond to larger filter holes and have a larger stretching amount, making the pores of the filter bag larger and capable of intercepting larger particle powders.

[0015] In this application, the unwinding device can unwind one end of the filter bag, providing sufficient filter bag length 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.

[0016] Other features and advantages of the present invention will be set forth in the following description, and in part will be obvious from the description, or may be learned by practice of the present invention. The objectives and other advantages of the present invention are realized and attained by the structure particularly pointed out in the specification and the drawings.

[0017] It should be understood that the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. Brief Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0019] Figure 2 It is a structural sectional view of an embodiment of the present invention.

[0020] Figure 3 It is a schematic structural diagram of the present invention after hiding the cylinder body.

[0021] Figure 4 It is a schematic structural diagram of the pulling device.

[0022] Figure 5 It is a schematic diagram of the change of the filter bag after being stretched by different filter holes.

[0023] Figure 6 It is a schematic diagram of the state of the filter bag after being pulled downward by the pulling device.

[0024] Description of the Reference Numerals: 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

[0025] For the convenience of those skilled in the art to understand, the structure of the present invention will be further described in detail below in conjunction with the drawings: Refer to Figures 1-4 , a filtering device for fullerene production, comprising: Cylinder body 1, the cylinder body 1 is provided with an air inlet 11 and an air outlet 12; Filter bag 2, 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; 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.

[0026] There are several rotating support rings 3, which are arranged in sequence from top to bottom on the periphery of the filter bag 2. 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 aperture of the filter holes 31 of the rotating support ring 3 from top to bottom increases in sequence. 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; In this embodiment, the rotating support ring 3 rotates and surrounds the periphery of the filter bag 2. When the filter bag 2 is working, the filter bag 2 fits to the inner wall of the rotating support ring 3 under the action of the air flow. The rotating support ring 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 ring 3 can limit the shape of the filter bag 2 after expansion. Since the rotating support ring 3 is 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 the filter bag 2 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 a 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 pores in the local area of the filter bag 2 become larger, as Figure 5 shown.

[0027] On the one hand, after the filter bag 2 is locally stretched and the pores become larger, the area where the filter bag 2 was originally blocked can continue to intercept graphene particles. On the other hand, the aperture of the filter holes 31 of the rotating support ring 3 from top to bottom increases in sequence, so that the local tension in 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 in 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.

[0028] At the same time, the rotating support ring 3 is driven by the 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 areas of the filter bag 2, so that different areas of the filter bag 2 all participate in filtration and are stretched by the corresponding filter holes 31.

[0029] The pulling device 4 is arranged above the opening 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 opening end.

[0030] In this embodiment, the pulling device 4 is arranged at the opening end of the filter bag 2. The bottommost rotating support ring 3 is at least 15 cm away from the opening end of the filter bag 2, so as to provide enough accommodation space for the filter bag 2 after being pulled downward. The pulling device 4 is arranged above the opening end of the filter bag 2. When the pulling device 4 works, it can pull the area above the opening 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 lifting 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, in cooperation with the aperture gradient setting of the filter holes 31 of the rotating support ring 3, can realize the multi-layer and multiple utilization of the filter bag 2, make 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 to increase the gap level during the operation of the filter bag 2.

[0031] Furthermore, it includes an unwinding device 5. The closed end of the filter bag 2 is wound and arranged on the unwinding device 5. When the pulling device 4 pulls the filter bag 2, the unwinding device 5 unwinds the filter bag 2.

[0032] In this embodiment, the length of the filter bag 2 is greater than the total length of several combined rotating support rings 3. Thus, 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.

[0033] Furthermore, 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.

[0034] In this embodiment, the unwinding device 5 can unwind one end of the filter bag 2 regularly or gradually. When not unwinding, the filter bag 2 is in the working state. To prevent the air flow inside the filter bag 2 from flowing towards the unwinding device 5 and expanding the filter bag 2 wound on the unwinding device 5, the added clamping device 6 can clamp the corresponding position, so that the air flow cannot pass through the clamped position. The clamping device 6 of this embodiment can be a pair of rollers arranged with a gap.

[0035] Further, 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 outer side and the inner side of the filter bag 2, and the driving wheel 41 is driven by a corresponding driving motor 43.

[0036] Further, the driving wheel 41 is a grooved roller, and the driving wheel 41 and the driven wheel 42 are arranged with a gap.

[0037] Further, the pulling device 4 is more than 15 cm away from the open end of the filter bag 2.

[0038] 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 part of the filter bag 2 above the pulling device 4 downward. The part of the filter bag 2 above the pulling device 4 is then folded and compressed and temporarily stored between the pulling device 4 and the open end of the filter bag 2. Through this structure, the filter bag 2 can be conveyed downward so that the filter bag 2 passes through the filter holes 31 of different sizes in sequence, and is stretched and expanded to different degrees to intercept particles of different sizes.

[0039] Further, 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 with a support ring. The support ring is provided with a toothed ring, and the rotating motor 32 drives the toothed ring to rotate through a gear.

[0040] In this embodiment, the outer ring of the rotating shaft 33 is connected through a plurality of connecting rods 34 arranged radially on the cylinder 1, so that the rotating shaft 33 is suspended inside the cylinder 1. A support ring is arranged 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.

[0041] Further, it includes a control system. Pressure sensors are respectively arranged at the air inlet 11 and the air outlet 12. 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; 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.

[0042] In this embodiment, the operation of each component is controlled by the pressure difference between the air inlet 11 and the air outlet 12. When the pressure difference between the air inlet 11 and the air outlet 12 is greater than a preset threshold, it indicates that each position of the filter bag 2 is 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 available for filtration. When the pressure difference does not decrease after the control system controls the rotating motor 32 to rotate a preset angle, it indicates that each position of the filter bag 2 has been blocked by particulate matters of corresponding sizes. It is necessary to pull the filter bag 2 downward to increase the local tension at the corresponding position of the filter bag 2 and increase the pore size of the filter bag 2 to continue to be used for filtration.

[0043] It should be noted that in the claims, any reference signs 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 the unit claims listing several means, several of these means can be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. does not denote any order. These words can be interpreted as names.

[0044] 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 and all changes and modifications falling within the scope of the present invention.

[0045] 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 can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside 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.

[0046] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the 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: Comprising: A cylinder body (1), the cylinder body (1) being provided with an air inlet (11) and an air outlet (12); A filter bag (2), arranged inside the cylinder body (1), the filter bag (2) being arranged between the air flow paths of the air inlet (11) and the air outlet (12), the open end of the filter bag (2) facing the air inlet (11), and the open end of the filter bag (2) being fixedly arranged; Rotating support rings (3), several in number, are sequentially arranged from top to bottom on the periphery of the filter bag (2), the rotating support rings (3) being provided with a plurality of filter holes (31), the rotating support rings (3) being driven by a rotating motor (32), and the apertures of the filter holes (31) of the rotating support rings (3) from top to bottom increasing in sequence. 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), and 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); A pulling device (4), arranged above the open end of the filter bag (2), the pulling device (4) being used to pull the closed end of the filter bag (2) towards the open end.

2. The filtering device for fullerene production according to claim 1, characterized in that: Comprising a pay-off device (5), the closed end of the filter bag (2) is wound and arranged on the pay-off device (5). When the pulling device (4) pulls the filter bag (2), the pay-off device (5) pays off the filter bag (2).

3. A filtering device for fullerene production according to claim 2, characterized in that: Comprising a clamping device (6), arranged between the closed end of the filter bag (2) and the pay-off device (5), the clamping device (6) clamping 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), the driving wheel (41) and the driven wheel (42) are respectively arranged on the outer side and the inner side 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 the driving wheel (41) and the driven wheel (42) are arranged with a gap.

6. The filtering device for fullerene production according to claim 1, wherein: 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 body (1) through a connecting rod (34), the inner ring of the rotating shaft (33) is fixedly connected with a support ring, the support ring is provided with a toothed ring, and the rotating motor (32) drives the toothed ring to rotate through a gear.

8. The filtering device for fullerene production according to claim 1, wherein: Comprising a control system, pressure sensors are respectively arranged at the air inlet (11) and the air outlet (12). When the pressure difference between the air inlet (11) and the air outlet (12) is greater than a preset threshold value, the control system controls the rotating motor (32) to rotate 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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