High-pressure graphene stripping device for experiment

Abstract

The experimental graphene high-pressure stripping device comprises a support, a shell is fixedly arranged on the upper side of the support, a pressurizing cavity is formed in the left end of the interior of the shell, and a piston is slidably connected to the interior of the pressurizing cavity in the left-right direction; a driving mechanism used for driving the piston to slide left and right is arranged on the support and located at the left end of the shell, and the upper side of the right end of the pressurizing cavity communicates with a feeding channel. When the hydraulic pressure of a liquid raw material is pressurized to a lower value in a standard working range value, the sliding column can be extruded by the hydraulic pressure to slide upwards to be separated from the upper port of the second feeding channel, so that the hydraulic pressure of the liquid raw material passing through the high-pressure homogenizing valve can quickly reach the standard working range value at the beginning of each pressurization; the amount of liquid raw materials with the hydraulic pressure lower than the standard working range value passing through the high-pressure homogenizing valve is greatly reduced, and then the graphene stripping efficiency of the high-pressure homogenizing valve is improved.

Description

Technical Field

[0001] This invention relates to the field of graphene exfoliation technology, specifically to an experimental high-pressure graphene exfoliation device. Background Technology

[0002] High-pressure graphene exfoliation involves mixing graphite crystals with a solvent, then pressurizing the mixture and forcing it through a narrow channel. This causes the graphite crystals within the channel to collide, be compressed, and rub against each other, thus separating the graphene nanosheets from the graphite crystals. Currently, high-pressure graphene exfoliation primarily utilizes a high-pressure homogenizer. This homogenizer applies pressure to the raw material mixture via piston compression, and the hydraulic pressure must reach a set standard operating range to exfoliate graphene with a composite standard purity.

[0003] Then, each time the piston begins to pressurize, its movement speed increases from zero to a set uniform speed value, causing the hydraulic fluid in the high-pressure homogenizer to go from low to high (standard working range value). Thus, during the acceleration phase when the piston begins to pressurize, the hydraulic fluid in the high-pressure homogenizer will be lower than the standard working range value, resulting in lower purity of graphene produced during this phase. This affects the overall graphene exfoliation efficiency and purity of the high-pressure homogenizer.

[0004] Based on this, the present invention designs an experimental graphene high-pressure exfoliation device to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an experimental graphene high-pressure exfoliation device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an experimental graphene high-pressure exfoliation device, comprising a support, a housing fixedly disposed on the upper side of the support, a pressure chamber opened at the left end of the housing, a piston slidably connected in the left-right direction within the pressure chamber, a driving mechanism for driving the piston to slide left and right on the support, the driving mechanism being located at the left end of the housing, a feeding channel connected to the upper right end of the pressure chamber, the feeding channel being opened inside the support, the upper end of the feeding channel extending outside the support and fixedly connected to a one-way feeding mechanism, a first sliding cavity and a squeezing cavity respectively opened at the upper and lower ends of the middle part of the support, a sliding column slidably connected in the up-down direction within the squeezing cavity, the upper end of the sliding column extending into the first sliding cavity and fixedly connected to a slider, the slider being slidably connected to the inner wall of the first sliding cavity in the up-down direction, an elastic squeezing mechanism for squeezing the slider downward within the squeezing cavity, a first feeding channel connected between the upper left end of the squeezing cavity and the lower right end of the pressure chamber, the first feeding channel being opened inside the support.

[0007] The lower end of the first sliding cavity is fixedly connected to a second feeding channel. The lower end of the sliding column can block the upper port of the second feeding channel. The other end of the second feeding channel is connected to a high-pressure homogenizing valve. The output end of the high-pressure homogenizing valve is fixedly connected to a discharge pipe located outside the housing.

[0008] As a further embodiment of the present invention, the driving mechanism includes a hydraulic cylinder, the fixed end of the left end of the hydraulic cylinder is fixedly connected to the support, the free end of the right end of the hydraulic cylinder is fixedly connected to a first slide rod, the right end of the first slide rod is slidably connected to the housing in the left-right direction, and the right end of the first slide rod extends into the pressurization chamber and is fixedly connected to the piston.

[0009] As a further embodiment of the present invention, the one-way feeding mechanism includes a material cylinder, the lower end of which is fixedly connected to a feeding pipe, a one-way valve is installed in the middle of the feeding pipe, and the lower end of the feeding pipe is fixedly connected to a support and connected to the upper end of the feeding channel.

[0010] As a further embodiment of the present invention, the elastic compression mechanism includes a first slide plate, which is located in a first slide cavity and above a slider. The first slide plate is slidably connected to the inner wall of the first slide cavity in the vertical direction. A first spring is fixedly connected between the first slide plate and the slider. A first elastic adjustment component for adjusting the vertical movement of the first slide plate is provided at the upper end of the first slide plate.

[0011] As a further embodiment of the present invention, the first elastic adjustment component includes a first lead screw, the lower end of the first lead screw is rotatably connected to the middle of the upper side of the first slide plate, the upper end of the first lead screw extends to the outside of the housing and is fixedly connected to a turntable, and the first lead screw is threadedly connected to the housing.

[0012] As a further embodiment of the present invention, a second sliding cavity is provided at the right end of the housing. A second sliding plate is slidably connected to the bottom of the second sliding cavity in the left-right direction. A second sliding rod is fixedly connected to the left side of the second sliding plate. The left end of the second sliding rod can extend into the extrusion cavity. A second spring is fixedly connected to the right side of the second sliding plate. A third sliding plate is fixedly connected to the right end of the second spring. The third sliding plate is slidably connected to the bottom wall of the second sliding cavity in the left-right direction. A second elastic adjustment component for adjusting the left-right movement of the third sliding plate is provided on the right side of the third sliding plate. A third sliding rod is slidably connected to the upper end of the second sliding cavity in the left-right direction. The left end of the third sliding rod extends into the first sliding cavity and can be inserted into a first locking hole. The first locking hole is opened on the right side of the slider. A second locking hole is connected to the lower right end of the first locking hole. The second locking hole is opened on the slider. A transmission component is provided between the third sliding rod and the second sliding plate. The second sliding plate can drive the third sliding rod to move left and right through the transmission component.

[0013] As a further embodiment of the present invention, the second elastic adjustment component includes a second lead screw, the left end of which is rotatably connected to the right side of the third slide plate, the right end of which extends to the outside of the housing and is fixedly connected to a knob, and the second lead screw is threadedly connected to the housing.

[0014] As a further embodiment of the present invention, the transmission assembly includes a first rack, which is fixedly connected to a second slide plate. The first rack meshes with a first gear, which is rotatably connected to the inner wall of a second slide cavity. The first gear meshes with a second gear, which is rotatably connected to the inner wall of the second slide cavity. A third gear is fixedly connected to the rotating shaft of the second gear, which meshes with a second rack. The second rack is fixedly connected to a third slide rod.

[0015] As a further embodiment of the present invention, the housing is fixedly connected to a hydraulic gauge located on the upper side of the second feeding channel, and the lower end of the bottom connecting pipe of the hydraulic gauge extends into the second feeding channel.

[0016] As a further embodiment of the present invention, the input end of the discharge pipe is fixedly connected to an internal threaded sleeve, the internal threaded sleeve is threadedly connected to an external threaded connector, and the end of the external threaded connector away from the discharge pipe is connected to the output end of the high-pressure homogenizing valve.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. In this invention, when the hydraulic pressure of the liquid raw material is pressurized to a lower value within the standard working range, the slide column can be hydraulically squeezed upwards to disengage from the upper port of the second feeding channel. This allows the hydraulic pressure of the liquid raw material passing through the high-pressure homogenizing valve to quickly reach the standard working range value at the beginning of each pressurization, greatly reducing the amount of liquid raw material with hydraulic pressure below the standard working range passing through the high-pressure homogenizing valve, thereby improving the efficiency of the high-pressure homogenizing valve in peeling graphene.

[0019] 2. Before the hydraulic pressure in the extrusion chamber reaches the higher value within the standard working range, the present invention can lock the slide column and the slider by a third slide rod. During the process of increasing the hydraulic pressure in the extrusion chamber from the lower value within the standard working range to the higher value within the standard working range, the hydraulic pressure can cause the slide column to generate an upward sliding force, which increases with the increase of hydraulic pressure. When the hydraulic pressure in the extrusion chamber reaches the higher value within the standard working range, the slide column and the slider are automatically unlocked, causing the slide column with a certain accumulated force to instantly disengage from the upper port of the second feeding channel. This allows the hydraulic pressure of the liquid raw material passing through the high-pressure homogenizing valve to reach the standard working range value more quickly at the beginning of each pressurization, thereby further improving the efficiency of the high-pressure homogenizing valve in peeling graphene. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the invention from a forward right-angle view.

[0021] Figure 2 This is a schematic diagram of the front cross-section of the shell and its internal structure.

[0022] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0023] Figure 4 This is a schematic cross-sectional view of the shell and its internal structure from the right side.

[0024] Figure 5 This is a top-view cross-sectional diagram of the casing of a split-type high-pressure homogenizing valve.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Support; 2. Housing; 3. Pressurizing chamber; 4. Piston; 5. Feeding channel; 6. First sliding chamber; 7. Extrusion chamber; 8. Sliding column; 9. Sliding block; 10. First feeding channel; 11. Second feeding channel; 12. High-pressure homogenizing valve; 13. Discharge pipe; 14. Hydraulic cylinder; 15. First sliding rod; 16. Material cylinder; 17. Feeding pipe; 18. Check valve; 19. First sliding plate; 20. First spring; 21. First lead screw; 2 2. Turntable; 23. Second slide cavity; 24. Second slide plate; 25. Second slide rod; 26. Second spring; 27. Third slide plate; 28. Third slide rod; 29. ​​First locking hole; 30. Second locking hole; 31. Second lead screw; 32. Knob; 33. First rack; 34. First gear; 35. Second gear; 36. Third gear; 37. Second rack; 38. Hydraulic gauge; 39. Internal threaded sleeve; 40. External threaded connector. Detailed Implementation

[0027] Please see Figure 1-5This invention provides a technical solution: an experimental graphene high-pressure exfoliation device, comprising a support 1, a housing 2 fixedly mounted on the upper side of the support 1, a pressure chamber 3 opened at the left end of the housing 2, a piston 4 slidably connected in the left-right direction within the pressure chamber 3, a driving mechanism for driving the piston 4 to slide left and right on the support 1, the driving mechanism being located at the left end of the housing 2, and a feeding channel 5 connected to the upper right end of the pressure chamber 3, the feeding channel 5 being opened inside the support 1, the upper end of the feeding channel 5 extending outside the support 1 and fixedly connected to a... The unidirectional feeding mechanism has a first sliding cavity 6 and a squeezing cavity 7 respectively opened at the upper and lower ends of the middle part of the support 1. A sliding column 8 is slidably connected in the vertical direction in the squeezing cavity 7. The upper end of the sliding column 8 extends into the first sliding cavity 6 and is fixedly connected to a slider 9. The slider 9 is slidably connected to the inner wall of the first sliding cavity 6 in the vertical direction. An elastic squeezing mechanism for squeezing the slider 9 downward is provided in the squeezing cavity 7. A first feeding channel 10 is connected between the upper left end of the squeezing cavity 7 and the lower right end of the pressure cavity 3. The first feeding channel 10 is opened in the support 1.

[0028] The lower end of the first sliding cavity 6 is fixedly connected to the second feeding channel 11. The lower end of the sliding column 8 can block the upper port of the second feeding channel 11. The other end of the second feeding channel 11 is connected to the high-pressure homogenizing valve 12. The output end of the high-pressure homogenizing valve 12 is fixedly connected to the discharge pipe 13 located outside the housing 2.

[0029] When the above scheme is put into actual use, the drive mechanism first drives the piston 4 to slide to the right (piston 4 is initially located at the right end of the pressurizing chamber 3). At this time, the sliding column 8 blocks the upper port of the second feeding channel 11 under the compression of the elastic extrusion mechanism. The suction force generated by the rightward sliding of piston 4 causes the liquid raw material in the one-way feeding mechanism to be transported to the pressurizing chamber 3 through the feeding channel 5. When piston 4 slides to the left end of the pressurizing chamber 3, it begins to slide to the right. The rightward sliding speed goes from zero to a set uniform speed value, thereby pressurizing the liquid raw material in the pressurizing chamber 3. When the hydraulic pressure of the liquid raw material in the chamber just increases, the one-way feeding mechanism automatically blocks it. The pressurized raw material in the pressurizing chamber 3 is conveyed to the extrusion chamber 7 through the first feeding channel 10. When the hydraulic pressure of the liquid raw material in the extrusion chamber 7 reaches the lower value of the standard working range, the slide column 8 slides upward under the push of the hydraulic pressure, causing the elastic extrusion mechanism to compress and the bottom end of the slide column 8 to leave the upper port of the second feeding channel 11. Then, the raw material in the extrusion chamber 7 with the hydraulic pressure reaching the lower value of the standard working range is conveyed to the high-pressure homogenizing valve 12 through the second feeding channel 11. After being stripped under high pressure by the high-pressure homogenizing valve 12, the material is discharged through the discharge pipe 13. Then, the piston 4, sliding to the right at a constant speed, maintains the hydraulic pressure in the pressurizing chamber 3, the extrusion chamber 7, and the high-pressure homogenizing valve 12 at a value slightly above the standard working range. When the piston 4 moves to the right end of the pressurizing chamber 3, it stops instantly, and the hydraulic pressure in the extrusion chamber 7 drops rapidly. When the hydraulic pressure in the extrusion chamber 7 drops to the lower end of the standard working range, the sliding column 8, under the pressure of the elastic extrusion mechanism, descends to block the second feeding channel 11, facilitating the feeding process. The pressure chamber 3 then draws in raw materials for the next operation. In this way, when the hydraulic pressure of the liquid raw material in the device is pressurized to the lower value of the standard working range, the slide column 8 can be hydraulically squeezed upwards to disengage from the upper port of the second feeding channel 11. This allows the hydraulic pressure of the liquid raw material passing through the high-pressure homogenizing valve 12 to quickly reach the standard working range value at the beginning of each pressurization, greatly reducing the amount of liquid raw material with hydraulic pressure below the standard working range passing through the high-pressure homogenizing valve 12, thereby improving the efficiency of the high-pressure homogenizing valve 12 in peeling graphene.

[0030] As a further embodiment of the present invention, the driving mechanism includes a hydraulic cylinder 14, the fixed end of the left end of the hydraulic cylinder 14 is fixedly connected to the support 1, and the free end of the right end of the hydraulic cylinder 14 is fixedly connected to a first slide rod 15. The right end of the first slide rod 15 is slidably connected to the housing 2 in the left-right direction, and the right end of the first slide rod 15 extends into the pressurization chamber 3 and is fixedly connected to the piston 4.

[0031] When the above scheme is put into actual use, the hydraulic cylinder 14 is started. The hydraulic cylinder 14 first pulls the piston 4 from the right end of the pressurizing chamber 3 to the left end of the pressurizing chamber 3 through the first slide rod 15, so that the liquid raw material is drawn into the pressurizing chamber 3 through the feeding channel 5. Then, the hydraulic cylinder 14 pushes the piston 4 from the left end of the pressurizing chamber 3 to the right end of the pressurizing chamber 3 through the first slide rod 15, so that the raw material in the pressurizing chamber 3 is squeezed into the extrusion chamber 7 through the first feeding channel 10.

[0032] As a further embodiment of the present invention, the one-way feeding mechanism includes a material cylinder 16, the lower end of which is fixedly connected to a feeding pipe 17, a one-way valve 18 is installed in the middle of the feeding pipe 17, and the lower end of the feeding pipe 17 is fixedly connected to the support 1 and connected to the upper end of the feeding channel 5.

[0033] When the above scheme is put into actual use, an appropriate amount of graphene liquid raw material is first poured into the material cylinder 16. When the pressure chamber 3 is under negative pressure, the one-way valve 18 automatically opens, and the liquid raw material in the material cylinder 16 is sucked into the pressure chamber 3 through the feeding pipe 17 and the feeding channel 5 in sequence. When the pressure chamber 3 is pressurized or the suction stops, the one-way valve 18 automatically seals the feeding pipe 17, thereby preventing the raw material in the pressure chamber 3 from flowing back through the feeding pipe 17.

[0034] As a further embodiment of the present invention, the elastic compression mechanism includes a first slide plate 19, which is located in the first slide cavity 6 and above the slider 9. The first slide plate 19 is slidably connected to the inner wall of the first slide cavity 6 in the vertical direction. A first spring 20 is fixedly connected between the first slide plate 19 and the slider 9. A first elastic adjustment component for adjusting the vertical movement of the first slide plate 19 is provided at the upper end of the first slide plate 19.

[0035] When the above scheme is put into actual use, the first spring 20 applies a downward squeezing force to the slider 9 and the sliding column 8. Before the raw material in the extrusion chamber 7 is pressurized, the sliding column 8 can tightly seal the upper port of the second feeding channel 11 under the downward pressure of the first spring 20. When the hydraulic pressure of the raw material in the extrusion chamber 7 is pressurized to the minimum value of the standard working range or slightly exceeding it, the sliding column 8 slides up under the upward pressure of the hydraulic pressure to disengage from the second feeding channel 11 and compress the first spring 20. When the hydraulic pressure of the raw material in the extrusion chamber 7 decreases to close to or equal to the minimum value of the standard working range, the sliding column 8 can slide down under the upward pressure of the first spring 20 to seal the upper port of the second feeding channel 11.

[0036] As a further embodiment of the present invention, the first elastic adjustment component includes a first lead screw 21, the lower end of the first lead screw 21 is rotatably connected to the upper middle part of the first slide plate 19, the upper end of the first lead screw 21 extends to the outside of the housing 2 and is fixedly connected to a turntable 22, and the first lead screw 21 is threadedly connected to the housing 2.

[0037] When the above solution is put into practical use, the first lead screw 21 can be rotated by rotating the turntable 22. The first lead screw 21 moves up and down under the action of thread transmission. The first lead screw 21 drives the first slide plate 19 to move up and down, thereby adjusting the elastic strength of the first spring 20. In this way, when the elastic force of the first spring 20 becomes inaccurate due to long-term repeated compression, the elastic force of the first spring 20 can be calibrated by the first elastic adjustment component.

[0038] As a further embodiment of the present invention, a second sliding cavity 23 is provided at the right end of the housing 2. A second sliding plate 24 is slidably connected to the bottom of the second sliding cavity 23 in the left-right direction. A second sliding rod 25 is fixedly connected to the left side of the second sliding plate 24. The left end of the second sliding rod 25 can extend into the extrusion cavity 7. A second spring 26 is fixedly connected to the right side of the second sliding plate 24. A third sliding plate 27 is fixedly connected to the right end of the second spring 26. The third sliding plate 27 is slidably connected to the bottom wall of the second sliding cavity 23 in the left-right direction. A tool for adjusting the second sliding plate 27 is provided on the right side of the third sliding plate 27. The second elastic adjustment component that moves left and right on the three sliding plates 27 has a third sliding rod 28 slidably connected to the upper end of the second sliding cavity 23 in the left and right direction. The left end of the third sliding rod 28 extends into the first sliding cavity 6 and can be inserted into a first locking hole 29. The first locking hole 29 is opened on the right side of the slider 9. The lower right end of the first locking hole 29 is connected to a second locking hole 30. The second locking hole 30 is opened on the slider 9. A transmission component is provided between the third sliding rod 28 and the second sliding plate 24. The second sliding plate 24 can drive the third sliding rod 28 to move left and right through the transmission component.

[0039] When the above scheme is put into actual use, the third slide rod 28 is initially fully inserted into the first locking hole 29 (locking the slider 9 and the slide column 8). When the hydraulic pressure of the raw material in the extrusion chamber 7 is increased to a certain value, the hydraulic pressure can push the second slide rod 25 to the right. The second slide rod 25 pushes the second slide plate 24 to the right, thereby compressing the second spring 26. The second slide plate 24 drives the third slide rod 28 to the right through the transmission assembly. When the hydraulic pressure of the raw material in the extrusion chamber 7 is equal to or slightly greater than the standard working range value, the slide column 8 begins to slide upward under the action of hydraulic pressure, but it cannot slide upward due to the locking of the third slide rod 28 onto the slider 9. When the hydraulic pressure is increased to the higher end of the standard working range, the left end of the third slide rod 28 slides directly above the second locking hole 30. At this moment, the accumulating slide column 8 slides upward and disengages from the upper end of the second feeding channel 11 until the left end of the third slide rod 28 inserts into the second locking hole 30. Immediately afterwards, the raw material in the extrusion chamber 7, whose hydraulic pressure has reached the higher end of the standard working range, is rapidly transported through the second feeding channel 11 to the high-pressure homogenizing valve 12. Subsequently, the piston 4 moves to the right at a constant speed, thereby maintaining the hydraulic pressure in the pressurizing chamber 3, extrusion chamber 7, and high-pressure homogenizing valve 12 at a value slightly above the middle of the standard working range. When the piston 4 slides to the right end of the pressurizing chamber 3 and... When stopped, the hydraulic pressure in the extrusion chamber 7 drops instantaneously, and the slide column 8, under the pressure of the elastic extrusion mechanism, quickly slides down to block the upper port of the second feeding channel 11, thereby stopping the high-pressure homogenizing valve 12 from working. As the slide column 8 blocks the upper port of the second feeding channel 11, the slider 9 slides down until the third slide rod 28 aligns with the first locking hole 29. Then, under the elastic force of the second spring 26 and the reverse transmission of the transmission assembly, the third slide rod 28 inserts into the first locking hole 29, locking the slider 9 again, facilitating the next high-pressure graphene peeling operation. Thus, before the hydraulic pressure in the extrusion chamber 7 reaches the higher value within the standard working range, the device can be maintained by the third slide rod 28. Rod 28 locks the slide column 8 and slider 9. During the process of hydraulic pressure increasing from the lower value of the standard working range to the higher value of the standard working range in the extrusion chamber 7, the slide column 8 can generate an upward sliding force through hydraulic pressure, which increases with the increase of hydraulic pressure. When the extrusion chamber 7 reaches the higher value of the standard working range, the slide column 8 and slider 9 are automatically unlocked, causing the slide column 8, which has accumulated a certain amount of pressure, to instantly disengage from the upper port of the second feeding channel 11. This allows the hydraulic pressure of the liquid raw material passing through the high-pressure homogenizing valve 12 to reach the standard working range value more quickly at the beginning of each pressurization, thereby further improving the efficiency of the high-pressure homogenizing valve 12 in peeling graphene.

[0040] As a further embodiment of the present invention, the second elastic adjustment component includes a second lead screw 31, the left end of the second lead screw 31 is rotatably connected to the right side of the third slide plate 27, the right end of the second lead screw 31 extends to the outside of the housing 2 and is fixedly connected to a knob 32, and the second lead screw 31 is threadedly connected to the housing 2.

[0041] When the above solution is put into practical use, the second lead screw 31 is rotated by the knob 32. The rotating second lead screw 31 moves left or right under the transmission of the thread structure. The second lead screw 31 drives the third slide plate 27 to slide left or right, thereby adjusting the elastic strength of the second spring 26. In this way, when the elastic force of the second spring 26 becomes inaccurate due to long-term repeated compression, the elastic force of the second spring 26 can be calibrated by the second elastic adjustment component.

[0042] As a further embodiment of the present invention, the transmission assembly includes a first rack 33, which is fixedly connected to a second slide plate 24. The first rack 33 meshes with a first gear 34, which is rotatably connected to the inner wall of a second slide cavity 23. The first gear 34 meshes with a second gear 35, which is rotatably connected to the inner wall of the second slide cavity 23. A third gear 36 is fixedly connected to the rotating shaft of the second gear 35. The third gear 36 meshes with a second rack 37, which is fixedly connected to a third slide rod 28.

[0043] When the above solution is put into practical use, when the second slide plate 24 slides, the second slide plate 24 drives the first rack 33 to move, the first rack 33 drives the first gear 34 to rotate, the first gear 34 drives the second gear 35 to rotate, the second gear 35 drives the third gear 36 to rotate, and the third gear 36 drives the second rack 37 to move, thereby causing the third slide rod 28 to slide, and the sliding direction of the third slide rod 28 is the same as that of the second slide rod 25. Moreover, by setting different sizes for the first gear 34, the second gear 35 and the third gear 36, the sliding stroke of the second slide plate 24 and the second slide rod 25 can be significantly greater than the sliding stroke of the third slide rod 28. In this way, by reducing the stroke of the third slide rod 28, the pushing or pulling force on the third slide rod 28 can be increased, thereby reducing the probability of the third slide rod 28 getting stuck due to friction and improving the sensitivity of the third slide rod 28 in locking and unlocking the slider 9.

[0044] As a further embodiment of the present invention, the housing 2 is fixedly connected to a hydraulic gauge 38 located on the upper side of the second feeding channel 11, and the lower end of the bottom connecting pipe of the hydraulic gauge 38 extends into the second feeding channel 11; during operation, the hydraulic gauge 38 allows for easy observation of the hydraulic pressure in the second feeding channel 11 at any time.

[0045] As a further embodiment of the present invention, the input end of the discharge pipe 13 is fixedly connected to an inner threaded sleeve 39, and the inner threaded sleeve 39 is threadedly connected to an outer threaded connector 40. The end of the outer threaded connector 40 away from the discharge pipe 13 is connected to the output end of the high-pressure homogenizing valve 12. During operation, the inner threaded sleeve 39 and the outer threaded connector 40 facilitate the disassembly and replacement of the discharge pipe 13.

Claims

1. An experimental graphene high-pressure exfoliation device, comprising, characterized in that: Includes a support (1), on which a housing (2) is fixedly mounted. A pressure chamber (3) is opened at the left end of the housing (2). A piston (4) is slidably connected in the left-right direction within the pressure chamber (3). A driving mechanism for driving the piston (4) to slide left and right is provided on the support (1). The driving mechanism is located at the left end of the housing (2). A feeding channel (5) is connected to the upper right end of the pressure chamber (3). The feeding channel (5) is opened inside the support (1). The upper end of the feeding channel (5) extends outside the support (1) and is fixedly connected to a one-way feeding mechanism. The upper and lower ends of the middle section are respectively provided with a first sliding cavity (6) and a squeezing cavity (7). The squeezing cavity (7) is slidably connected to a sliding column (8) in the vertical direction. The upper end of the sliding column (8) extends into the first sliding cavity (6) and is fixedly connected to a slider (9). The slider (9) is slidably connected to the inner wall of the first sliding cavity (6) in the vertical direction. The squeezing cavity (7) is provided with an elastic squeezing mechanism for squeezing the slider (9) downward. The upper left side of the squeezing cavity (7) is connected to the lower right side of the pressure cavity (3) through a first feeding channel (10). The first feeding channel (10) is opened in the support (1). The lower end of the first sliding cavity (6) is fixedly connected to the second feeding channel (11). The lower end of the sliding column (8) can block the upper port of the second feeding channel (11). The other end of the second feeding channel (11) is connected to the high pressure homogenizing valve (12). The output end of the high pressure homogenizing valve (12) is fixedly connected to the discharge pipe (13) located outside the housing (2).

2. The experimental graphene high-pressure exfoliation device according to claim 1, characterized in that: The driving mechanism includes a hydraulic cylinder (14), the fixed end of the left end of the hydraulic cylinder (14) is fixedly connected to the support (1), and the free end of the right end of the hydraulic cylinder (14) is fixedly connected to a first slide rod (15). The right end of the first slide rod (15) is slidably connected to the housing (2) in the left and right direction. The right end of the first slide rod (15) extends into the pressurization chamber (3) and is fixedly connected to the piston (4).

3. The experimental graphene high-pressure exfoliation device according to claim 1, characterized in that: The one-way feeding mechanism includes a material cylinder (16), the lower end of which is fixedly connected to a feeding pipe (17), a one-way valve (18) is installed in the middle of the feeding pipe (17), and the lower end of the feeding pipe (17) is fixedly connected to the support (1) and connected to the upper end of the feeding channel (5).

4. The experimental graphene high-pressure exfoliation device according to claim 1, characterized in that: The elastic compression mechanism includes a first slide plate (19), which is located inside the first slide cavity (6) and above the slider (9). The first slide plate (19) is slidably connected to the inner wall of the first slide cavity (6) in the vertical direction. A first spring (20) is fixedly connected between the first slide plate (19) and the slider (9). A first elastic adjustment component for adjusting the vertical movement of the first slide plate (19) is provided at the upper end of the first slide plate (19).

5. The experimental graphene high-pressure exfoliation device according to claim 4, characterized in that: The first elastic adjustment component includes a first lead screw (21), the lower end of the first lead screw (21) is rotatably connected to the middle of the upper side of the first slide plate (19), the upper end of the first lead screw (21) extends to the outside of the housing (2) and is fixedly connected to a turntable (22), and the first lead screw (21) is threadedly connected to the housing (2).

6. The experimental graphene high-pressure exfoliation device according to claim 1, characterized in that: The housing (2) has a second sliding cavity (23) at its right end. A second sliding plate (24) is slidably connected to the bottom of the second sliding cavity (23) in the left-right direction. A second sliding rod (25) is fixedly connected to the left side of the second sliding plate (24). The left end of the second sliding rod (25) can extend into the extrusion cavity (7). A second spring (26) is fixedly connected to the right side of the second sliding plate (24). A third sliding plate (27) is fixedly connected to the right end of the second spring (26). The third sliding plate (27) is slidably connected to the bottom wall of the second sliding cavity (23) in the left-right direction. An adjustment mechanism for the third sliding plate (27) is provided on the right side of the third sliding plate (27). The second elastic adjustment component moves left and right. The upper end of the second sliding cavity (23) is slidably connected to the third sliding rod (28) in the left and right direction. The left end of the third sliding rod (28) extends into the first sliding cavity (6) and can be inserted into the first locking hole (29). The first locking hole (29) is opened on the right side of the slider (9). The lower right end of the first locking hole (29) is connected to the second locking hole (30). The second locking hole (30) is opened on the slider (9). A transmission component is provided between the third sliding rod (28) and the second sliding plate (24). The second sliding plate (24) can drive the third sliding rod (28) to move left and right through the transmission component.

7. The experimental graphene high-pressure exfoliation device according to claim 6, characterized in that: The second elastic adjustment component includes a second lead screw (31), the left end of which is rotatably connected to the right side of the third slide plate (27), the right end of which extends to the outside of the housing (2) and is fixedly connected to a knob (32), and the second lead screw (31) is threadedly connected to the housing (2).

8. The experimental graphene high-pressure exfoliation device according to claim 6, characterized in that: The transmission assembly includes a first rack (33), which is fixedly connected to a second slide plate (24). The first rack (33) meshes with a first gear (34), which is rotatably connected to the inner wall of the second slide cavity (23). The first gear (34) meshes with a second gear (35), which is rotatably connected to the inner wall of the second slide cavity (23). The rotating shaft of the second gear (35) is fixedly connected to a third gear (36), which meshes with a second rack (37). The second rack (37) is fixedly connected to a third slide rod (28).

9. The experimental graphene high-pressure exfoliation device according to claim 1, characterized in that: The housing (2) is fixedly connected to a hydraulic gauge (38) located on the upper side of the second feeding channel (11), and the lower end of the bottom connecting pipe of the hydraulic gauge (38) extends into the second feeding channel (11).

10. The experimental graphene high-pressure exfoliation device according to claim 1, characterized in that: The input end of the discharge pipe (13) is fixedly connected to an inner threaded sleeve (39), and the inner threaded sleeve (39) is threadedly connected to an outer threaded connector (40). The end of the outer threaded connector (40) away from the discharge pipe (13) is connected to the output end of the high-pressure homogenizing valve (12).

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