Mixed foreign matter filtering device for graphene slurry

Abstract

The invention discloses a mixed foreign matter filtering device for graphene slurry, which comprises a material receiving unit, a filtering unit is arranged in the material receiving unit, a driving unit is arranged above the material receiving unit, two groups of material scraping units are arranged below the driving unit, a sealing cover unit is arranged above the driving unit, and the sealing cover unit is arranged above the material receiving unit. The driving unit comprises a driven disc, mounting blocks are symmetrically arranged on the driven disc, the scraping units are mounted on the two mounting blocks, each scraping unit comprises a scraping telescopic rod, the fixed end of each scraping telescopic rod is mounted on one mounting block, and the fixed end of each scraping telescopic rod is mounted on the other mounting block. By means of the device, the problems that due to the fact that micron-sized graphene blocks meshes of a filter screen, nano-sized graphene cannot flow downwards, and micron-sized graphene raw materials drive the nano-sized graphene to be clustered are solved, and the effects that the nano-sized graphene can be prevented from blocking filter through holes, and the nano-sized graphene continues to be blended into slurry are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of filtering devices, and more specifically, to a mixed foreign matter filtering device for graphene slurry. Background Art

[0002] Graphene is a two-dimensional material composed of carbon atoms in sp2 hybrid orbitals forming a hexagonal honeycomb lattice. Graphene is one of the thinnest, hardest and most conductive materials known. However, during the graphene processing, the graphene layers need to be peeled off. During the peeling process, incomplete processing may occur, resulting in the processed graphene not meeting the requirements.

[0003] At present, the graphene mixing and filtering devices on the market usually add graphene raw materials into a circulating emulsification pump. There is a gap between the stator and the rotor of the circulating emulsification pump. The flake graphene is peeled off during the rotation of the stator and the rotor. The circulating emulsification pump can transport the graphene during the peeling process. The peeled graphene is transported to a homogenizer for further grinding and dispersion. The dispersed graphene raw materials are divided into micron and nanometer levels. The dispersed graphene will be transported to the slurry for mixing. The mixed slurry is filtered through a filter to filter the micron-level graphene and retain the nanometer-level graphene.

[0004] However, in the process of filtering graphene, micron-sized graphene will be blocked on the mesh of the filter, causing nano-sized graphene to be unable to flow downward, and the micron-sized graphene raw material will drive the nano-sized graphene to form a cluster, causing the slurry filtration speed to become lower and reducing the micron-sized graphene in the slurry, delaying the filtration efficiency of the slurry and affecting the content of micron-sized graphene in the slurry. Summary of the invention

[0005] In view of the shortcomings of the prior art, the object of the present invention is to provide a mixed foreign matter filtering device for graphene slurry.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A mixed foreign matter filtering device for graphene slurry comprises a material receiving unit, a filtering unit is arranged inside the material receiving unit, a driving unit is arranged above the material receiving unit, two groups of scraping units are arranged below the driving unit, a capping unit is arranged above the driving unit, the driving unit comprises a driven disk, mounting blocks are symmetrically arranged on the driven disk, the scraping units are mounted on two mounting blocks, the scraping unit comprises a scraper telescopic rod, the fixed end of the scraper telescopic rod is mounted on one of the mounting blocks, a scraper mechanism is rotatably mounted on the output end of the scraper telescopic rod, the scraper mechanism comprises a scraper bearing, a scraper mounting column is mounted in the middle of the scraper bearing, and scrapers are arranged in an array on the scraper mounting column.

[0008] The present invention is further configured as follows: the material receiving unit includes a material receiving cavity, four material receiving bases are installed at the lower side of the material receiving cavity, a discharge channel is installed at the bottom of the material receiving cavity, a discharge valve is installed on the discharge channel, a cleaning channel is installed on the upper side wall of the material receiving cavity, a cleaning valve is installed on the cleaning channel, and the driving unit is installed above the material receiving cavity.

[0009] The present invention is further configured as follows: the filter unit comprises a filter plate having a plurality of filter through holes, and the filter plate is arranged at a position close to the bottom of the material receiving cavity.

[0010] The present invention is further configured as follows: the two scraping units are both arranged inside the material receiving cavity, and the lengths of the two scraping units do not exceed the positions of the filter plates.

[0011] The present invention is further configured as follows: a circular through hole is provided at one end of the scraper telescopic rod connected to the scraper mechanism, and the size of the circular through hole is the same as the size of the scraper bearing.

[0012] The present invention is further configured as follows: the scraper bearing comprises an outer ring, an inner ring and balls; the outer ring of the scraper bearing is connected to the output end of the scraper telescopic rod; and the inner ring of the scraper bearing is connected to the scraper mounting column.

[0013] The present invention is further configured as follows: the driving unit further comprises a driving mounting seat, the driving mounting seat is mounted above the material receiving unit, and a bottom plate is arranged on the driving mounting seat

[0014] The present invention is further configured as follows: a swivel mounting disk is arranged on the bottom plate, a swivel housing is arranged on one side of the swivel mounting disk, and a driven disk is arranged in the middle of the swivel mounting disk.

[0015] By adopting the above technical solution, a scraper telescopic rod is set to drive the scraper mechanism close to the filter unit, and the scraper is close to the surface of the filter plate, driving the scraper to rotate, scraping the nano-scale graphene and breaking up the clumped graphene, thereby achieving the effect of preventing the nano-scale graphene from being scraped and clogging the filter holes and continuing to integrate the nano-scale graphene into the slurry.

[0016] The present invention is further configured as follows: a driving shaft is arranged inside the rotating shell, a driving motor is installed at one end of the driving shaft, and a top plate is installed above the rotating mounting plate.

[0017] The present invention is further configured as follows: the capping unit further comprises a capping body, the capping body is installed above the driving unit, and a feed port is arranged on the capping body.

[0018] By adopting the above technical solution, two scraper units are set to rotate, and the scraper drives the micron-sized graphene near the center of the filter plate to roll up. When the two scraper mounting columns rotate, a smaller vortex is formed in the center of the filter plate, thereby achieving the effect of reducing the energy consumption of the driving unit and improving the working efficiency of the scraper unit.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] 1. A scraper telescopic rod is set to drive the scraper mechanism close to the filter unit. The scraper is close to the surface of the filter plate, driving the scraper to rotate, scraping the nano-scale graphene and breaking up the clumped graphene, thereby preventing the nano-scale graphene from being scraped and blocking the filter holes and continuing to integrate the nano-scale graphene into the slurry. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a mixed foreign matter filtering device for graphene slurry in the present invention;

[0022] Figure 2 It is a schematic diagram of the explosion structure of a mixed foreign matter filtering device for graphene slurry in the present invention;

[0023] Figure 3 It is a schematic diagram of the exploded structure of the driving unit, the scraping unit and the filtering unit in the present invention;

[0024] Figure 4 It is a schematic diagram of the exploded structure of the drive unit in the present invention;

[0025] Figure 5 It is a schematic diagram of the overall structure of the scraper unit in the present invention;

[0026] Figure 6 It is a schematic diagram of the exploded structure of the scraping unit in the present invention;

[0027] Figure 7 It is a schematic diagram of the overall structure of the scraper mechanism in the present invention;

[0028] Figure 8 It is a schematic diagram of the cross-section structure of the scraper mechanism in the present invention;

[0029] Fig. 9 It is a schematic diagram of the coordination structure of the driving unit, the scraping unit and the filtering unit in the present invention;

[0030] Fig.10 for Fig. 9 A schematic diagram of the overall structure from another perspective;

[0031] Fig.11 for Fig. 9 Schematic diagram of the cross-section structure along the AA direction;

[0032] Fig.12 for Figure 2 The overall structural diagram of the filter unit;

[0033] Fig.13 for Figure 2 Schematic diagram of the overall structure of the middle capping unit.

[0034] Description of reference numerals: 1. material receiving unit; 11. material receiving base; 12. material receiving cavity; 13. material discharging channel; 14. material discharging valve; 15. cleaning channel; 16. cleaning valve;

[0035] 2. Capping unit; 21. Capping body; 22. Feeding port;

[0036] 3. driving unit; 31. driving mounting seat; 32. bottom plate; 33. rotating housing; 34. rotating mounting plate; 35. driving shaft; 36. driving motor; 37. driven plate; 38. top plate; 39. mounting block;

[0037] 4. Scraper unit; 41. Scraper telescopic rod; 42. Scraper mechanism; 421. Scraper mounting column; 422. Scraper bearing; 423. Scraper;

[0038] 6. Filter unit; 61. Filter plate; 62. Filter through hole. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0041] See also Figure 1-13 , the present invention provides the following technical solutions:

[0042] Embodiment 1

[0043] See also Figure 2 A mixed foreign matter filtering device for graphene slurry includes a material receiving unit 1, a filtering unit 6 is arranged inside the material receiving unit 1, a driving unit 3 is arranged above the material receiving unit 1, two groups of scraping units 4 are arranged below the driving unit 3, the two groups of scraping units 4 are inside the material receiving unit 1, and a capping unit 2 is arranged above the driving unit 3.

[0044] See also Fig.10 The material receiving unit 1 includes a material receiving cavity 12, four material receiving bases 11 are installed at the lower side of the material receiving cavity 12, a discharge channel 13 is installed at the bottom of the material receiving cavity 12, a discharge valve 14 is installed on the discharge channel 13, a cleaning channel 15 is installed on the upper side wall of the material receiving cavity 12, and a cleaning valve 16 is installed on the cleaning channel 15.

[0045] The material receiving base 11 supports the material receiving cavity 12, and the material receiving cavity 12 contains graphene mixed slurry. The filtered graphene mixed slurry can flow out from the discharge channel 13. The discharge valve 14 is used to control the flow of the graphene mixed slurry. The cleaning channel 15 can fill the interior of the material receiving cavity 12 with clean water after the entire mechanism is finished working, and the cleaning valve 16 is used to control the circulation of the cleaning channel 15.

[0046] By setting the discharge valve 14 to control the discharge channel 13, the outflow rate of the graphene mixed slurry can be controlled. Setting the cleaning channel 15 can facilitate the cleaning of the inside of the receiving cavity 12, avoiding the problem of needing to disassemble the receiving cavity 12 every time for cleaning.

[0047] See also Figure 1 A filter unit 6 is disposed inside the conveying and receiving unit 1 . The filter unit 6 includes a filter plate 61 . A plurality of filter through holes 62 are disposed on the filter plate 61 . The filter plate 61 is disposed near the bottom of the receiving cavity 12 .

[0048] The filter through hole 62 is used to filter micron-sized and unground scattered graphene. Due to their large volume, micron-sized and unground scattered graphene will cause the flow performance of the slurry to deteriorate and increase the viscosity of the slurry. The filter through hole 62 can pass nano-sized graphene. The slurry and nano-sized graphene pass through the filter through hole 62, and the micron-sized graphene is blocked on the filter plate 61.

[0049] The two scraping units 4 are both arranged inside the material receiving cavity 12 , and the lengths of the two scraping units 4 do not exceed the position of the filter plate 61 .

[0050] See also Figure 3A driving unit 3 is arranged above the material receiving unit 1, and the driving unit 3 is installed above the material receiving cavity 12. The driving unit 3 includes a driven disk 37, and mounting blocks 39 are symmetrically arranged on the driven disk 37. The driving unit 3 also includes a driving mounting seat 31, and the driving mounting seat 31 is installed above the material receiving unit 1. A bottom plate 32 is arranged on the driving mounting seat 31, and a rotating mounting disk 34 is arranged on the bottom plate 32. A rotating shell 33 is installed on one side of the rotating mounting disk 34, and a driven disk 37 is arranged in the middle of the rotating mounting disk 34.

[0051] A driving shaft 35 is disposed inside the rotary housing 33 , a driving motor 36 is mounted on one end of the driving shaft 35 , and a top plate 38 is mounted above the rotary mounting plate 34 .

[0052] The driving mounting seat 31 is fixedly installed on the top of the material receiving chamber 12. An opening is provided on one side of the driving mounting seat 31. The bottom plate 32 matches the direction of the driving mounting seat 31 and can limit the rotation position. The driven disk 37 can rotate in the rotating mounting disk 34. The rotating shell 33 has an opening on one side close to the rotating mounting disk 34. The driving shaft 35 rotates in the rotating shell 33. The driving shaft 35 engages with the driven disk 37. When the driving shaft 35 rotates, it can drive the driven disk 37 to rotate. The driving motor 36 is installed at one end of the rotating shell 33. The output end of the driving motor 36 penetrates the rotating shell 33 and is connected to the driving shaft 35. The top plate 38 covers the rotating mounting disk 34. When the driven disk 37 rotates, it drives the mounting block 39 to rotate synchronously.

[0053] A circular through hole is provided in the middle of the driving unit 3 , and the shape of the through hole matches the shape of the material receiving cavity 12 .

[0054] See also Fig.13 A capping unit 2 is disposed above the driving unit 3 , and the capping unit 2 further includes a capping body 21 , which is installed above the top plate 38 , and a feed port 22 is disposed on the capping body 21 .

[0055] The feed port 22 is used to introduce the graphene mixed slurry, and the cover body 21 can be connected to the introduction component to prevent other impurities from entering.

[0056] Since the micron-sized graphene raw materials will drive the nano-sized graphene raw materials to agglomerate, the slurry filtration rate will be lowered and the micron-sized graphene in the slurry will be reduced.

[0057] See also Figures 5 to 11Two scraper units 4 are arranged below the driving unit 3, and two scraper units 4 are respectively installed on two mounting blocks 39. The scraper unit 4 includes a scraper telescopic rod 41, and the fixed end of the scraper telescopic rod 41 is installed on a mounting block 39. A scraper mechanism 42 is rotatably installed at the output end of the scraper telescopic rod 41. The scraper mechanism 42 includes a scraper bearing 422, and a scraper mounting column 421 is installed in the middle of the scraper bearing 422. Scrapers 423 are arranged in an array on the scraper mounting column 421. A circular through hole is provided at one end of the scraper telescopic rod 41 connected to the scraper mechanism 42, and the size of the circular through hole is the same as the size of the scraper bearing 422.

[0058] The scraper telescopic rod 41 is a titanium alloy telescopic rod with model number Ti-6Al-4V (TC4). The scraper mechanism 42 scrapes up the clumped graphene raw material. In the process of scraping, the clumped graphene is broken up, and the nano-graphene in the broken up graphene continues to be integrated into the slurry, and the micron-scale graphene is filtered on the filter plate. The scraper bearing 422 includes an outer ring, an inner ring and a ball. The outer ring of the scraper bearing 422 is connected to the output end of the scraper telescopic rod 41, and the inner ring of the scraper bearing 422 is connected to the scraper mounting column 421. When the outer ring of the scraper bearing 422 is fixed, the inner ring of the scraper bearing 422 drives the scraper mounting column 421 to rotate through the ball, and synchronously drives the scraper 423 to rotate.

[0059] If the scraper telescopic rods 41 of the two scraper units 4 are extended to different lengths, one scraper telescopic rod 41 is close to the filter plate 61 to roll up the micron-sized graphene, and the other scraper telescopic rod 41 can be extended to the middle position of the graphene mixed slurry, driving the unfiltered graphene mixed slurry above to flow, thereby preventing the nano-sized graphene and micro-sized graphene above from clumping.

[0060] By arranging the two scraper telescopic rods 41 to extend to different lengths, the effect of preventing the micron-scale graphene and nano-scale graphene on the top from agglomerating while driving the bottom micron-scale graphene to roll up is achieved.

[0061] When the driving shaft 35 rotates, the driven disk 37 rotates, synchronously driving the two mounting blocks 39 to rotate, and the two mounting blocks 39 drive the two scraper units 4 to rotate. The scraper mounting columns 421 of the two scraper units 4 have the same length, and the length of the two scraper mounting columns 421 is smaller than the radius of the filter plate 61. Since the two scraper mounting columns 421 are symmetrically arranged, when the two scraper units 4 rotate, the scraper 423 can drive the micron-sized graphene near the center of the filter plate 61 to be rolled up. If only a single scraper unit 4 is set, it can only rotate in a circle around the filter plate 61, and when the two scraper mounting columns 421 rotate, a smaller vortex can be formed in the center of the filter plate 61. This vortex can drive the micron-sized graphene in the center of the filter plate 61 to be rolled up. In this case, the energy consumption of the driving unit 3 can be reduced, and the working efficiency of the scraper unit 4 can be improved.

[0062] By setting two scraper units 4 to rotate, the scraper 423 drives the micron-sized graphene near the center of the filter plate 61 to roll up. When the two scraper mounting columns 421 rotate, a smaller vortex is formed in the center of the filter plate, thereby achieving the effect of reducing the energy consumption of the drive unit 3 and improving the working efficiency of the scraper unit 4.

[0063] Bearings typically contain rolling elements that roll between the inner and outer rings of the bearing, thereby reducing friction.

[0064] When the graphene mixed slurry passes through the filter unit 6, the nano-scale graphene will stay on the filter plate 61. Since the size of the filter hole 62 is smaller than the micron-scale graphene, the micron-scale graphene may block the filter hole 62. The scraper mechanism 42 is driven close to the filter unit 6 by the scraper telescopic rod 41. When the scraper 423 is close to the surface of the filter plate 61, the scraper telescopic rod 41 stops extending. The inner layer of the scraper bearing 422 is driven to rotate on the scraper 423 through the slurry pressure and the micron-scale graphene. The scraper 423 will roll up the nano-scale graphene blocking the filter hole 62. If the micron-scale graphene raw material drives the nano-scale graphene to form a cluster, the scraper can break up the clustered graphene, and the nano-scale graphene in the broken graphene continues to be integrated into the slurry.

[0065] By setting the scraper telescopic rod 41 to drive the scraper mechanism 42 close to the filter unit 6, the scraper 423 is close to the surface of the filter plate 61, driving the scraper 423 to rotate, scraping the nano-scale graphene and breaking up the clumped graphene, thereby achieving the effect of preventing the nano-scale graphene from clogging the filter through hole 62 and continuing to integrate the nano-scale graphene into the slurry.

[0066] If during the filtering process of graphene, micron-sized graphene will be blocked on the mesh of the filter, it will cause the problem that nano-sized graphene cannot flow downward.

[0067] When the driving motor 36 rotates, it drives the driving shaft 35 to rotate, and the driving shaft 35 drives the driven disk 37 to rotate, and synchronously drives the mounting block 39 to rotate. When the mounting block 39 rotates, it drives the two scraper units 4 to rotate. When the scraper 423 in the scraper unit 4 rolls up the micron-sized graphene, the scraper mounting column 421 rotates, driving the scraper 423 to break up the clumped graphene during the rotation process, so as to avoid the situation where the graphite clumps and sticks together and cannot be filtered downwards. By continuously scraping up the micron-sized graphene and clearing the nano-sized graphene to the bottom, the filtration speed of the graphene mixed slurry is greatly improved, and the filtration quality is improved.

[0068] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A mixed foreign matter filtering device for graphene slurry, characterized in that: The invention comprises a material receiving unit (1), wherein a filtering unit (6) is arranged inside the material receiving unit (1), a driving unit (3) is arranged above the material receiving unit (1), two groups of scraping units (4) are arranged below the driving unit (3), a capping unit (2) is arranged above the driving unit (3), the driving unit (3) comprises a driven disk (37), mounting blocks (39) are symmetrically arranged on the driven disk (37), and the two mounting blocks (39) are both mounted with the A scraper unit (4), the scraper unit (4) comprising a scraper telescopic rod (41), the fixed end of the scraper telescopic rod (41) being mounted on one of the mounting blocks (39), the output end of the scraper telescopic rod (41) being rotatably mounted with a scraper mechanism (42), the scraper mechanism (42) comprising a scraper bearing (422), a scraper mounting column (421) being mounted in the middle of the scraper bearing (422), and scrapers (423) being arranged in an array on the scraper mounting column (421).

2. The mixed foreign matter filtering device for graphene slurry according to claim 1, characterized in that: The material receiving unit (1) comprises a material receiving cavity (12), four material receiving bases (11) are installed below the side of the material receiving cavity (12), a discharge channel (13) is installed at the bottom of the material receiving cavity (12), a discharge valve (14) is installed on the discharge channel (13), a cleaning channel (15) is installed on the upper side wall of the material receiving cavity (12), a cleaning valve (16) is installed on the cleaning channel (15), and the driving unit (3) is installed above the material receiving cavity (12).

3. The mixed foreign matter filtering device for graphene slurry according to claim 2, characterized in that: The filter unit (6) comprises a filter plate (61) having a plurality of filter through holes (62) on the filter plate (61), and the filter plate (61) is arranged at a position close to the bottom of the material receiving cavity (12).

4. The mixed foreign matter filtering device for graphene slurry according to claim 3, characterized in that: The two scraping units (4) are both arranged inside the material receiving cavity (12), and the lengths of the two scraping units (4) do not exceed the position of the filter plate (61).

5. The mixed foreign matter filtering device for graphene slurry according to claim 1, characterized in that: One end of the scraper telescopic rod (41) connected to the scraper mechanism (42) is provided with a circular through hole, and the size of the circular through hole is the same as the size of the scraper bearing (422).

6. The mixed foreign matter filtering device for graphene slurry according to claim 5, characterized in that: The scraper bearing (422) comprises an outer ring, an inner ring and a ball. The outer ring of the scraper bearing (422) is connected to the output end of the scraper telescopic rod (41), and the inner ring of the scraper bearing (422) is connected to the scraper mounting column (421).

7. The mixed foreign matter filtering device for graphene slurry according to claim 1, characterized in that: The driving unit (3) further comprises a driving mounting seat (31), wherein the driving mounting seat (31) is mounted above the material receiving unit (1), and a bottom plate (32) is arranged on the driving mounting seat (31).

8. The mixed foreign matter filtering device for graphene slurry according to claim 7, characterized in that: A rotatable mounting disk (34) is arranged on the bottom plate (32), a rotatable housing (33) is installed on one side of the rotatable mounting disk (34), and a driven disk (37) is arranged in the middle of the rotatable mounting disk (34).

9. The mixed foreign matter filtering device for graphene slurry according to claim 8, characterized in that: A driving shaft (35) is arranged inside the rotary housing (33), a driving motor (36) is installed at one end of the driving shaft (35), and a top plate (38) is installed above the rotary mounting plate (34).

10. The mixed foreign matter filtering device for graphene slurry according to claim 1, characterized in that: The capping unit (2) further comprises a capping body (21), wherein the capping body (21) is installed above the driving unit (3), and a feed port (22) is provided on the capping body (21).

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