CN113148998B - Graphene material production equipment and production method thereof - Google Patents

Abstract

The invention discloses a graphene material production device and a production method thereof in the field of graphene preparation, and the production method comprises the following steps of 1: preparing a graphite solution; step 2: adding a graphite solution into a funnel; and step 3: starting a motor to enable the upper cutter plate and the lower cutter plate to process the upper cutter plate and the lower cutter plate; and 4, step 4: centrifuging the graphene solution by a spiral tube to layer the graphene solution; and 5: taking the filtered graphene out of the equipment; according to the invention, the clearance between the upper cutting board and the lower cutting board can be gradually reduced through the matching of the upper cutting board and the lower cutting board, so that the surface layers of graphite particles can be peeled off layer by layer when some graphite with different particle sizes is sheared, and the graphite particles are prevented from being directly crushed, so that the peeled graphene has relatively small area and poor quality, and more graphene with larger area and better quality can be obtained; the problem of among the prior art mechanical peeling method preparation graphite alkene complicated operation efficiency is lower is solved.

Description

Graphene material production equipment and production method thereof

Technical Field

The invention relates to the field of graphene preparation, in particular to a graphene material production device and a production method thereof.

Background

In the prior art, graphene prepared by a mechanical stripping method is usually obtained by grinding through a ball mill, but the requirement on the abrasion resistance of the machine is extremely high, and graphite generates high temperature during ball milling, if the temperature is not effectively controlled, the graphite is further scrapped, however, the liquid phase is cut through shearing force, so that the temperature of the graphite is not worried about to be too high, but the existing equipment usually directly adds the liquid phase graphite into equipment with determined specifications for processing, as dust aggregates exist in the liquid phase graphite, larger dust aggregates cannot pass through gaps among cutters and cannot be processed, so that raw materials are wasted, and in addition, as the particle size of the liquid phase graphite is also different, when the liquid phase graphite is cut, the liquid phase graphite is directly cut through the cutters with extremely small gaps, the area of the obtained graphene is relatively small; among the prior art, carry out the centrifugation to graphite alkene solution and shift graphite alkene solution to the centrifuge usually in, this just makes and leads to losing of partial graphite alkene when changing the container, comparatively extravagant resource to the equipment of processing centrifugation integration is subject to centrifugal rotational speed extremely, and this intensity requirement to equipment is extremely high just also, and then leads to the improvement of cost, and does not do not benefit to bulk production and use.

Based on the above, the invention designs a graphene material production device and a production method thereof, so as to solve the above problems.

Disclosure of Invention

The invention aims to provide a graphene material production device and a production method thereof, and aims to solve the problems of the prior art in the background technology.

In order to achieve the above purpose, the invention provides the following technical scheme;

a graphene material production device and a production method thereof comprise a top cover, a shell, a funnel and a motor, wherein the top cover is hinged with the shell through an L-shaped rod, and the funnel is fixedly connected in the shell below the top cover; motor fixed connection is at the interior bottom surface of casing, its characterized in that: the output end of the motor is fixedly connected with a first threaded shaft, a lower cutting board is fixedly connected to the first threaded shaft, a second threaded shaft is fixedly connected to the lower cutting board, the second threaded shaft is a hollow shaft and is provided with a plurality of hollowed-out gaps for liquid to flow from a funnel to the lower cutting board, and an upper cutting board vertically and slidably connected with the shell is arranged above the second threaded shaft; the second threaded shaft penetrates through the upper knife board to be rotatably connected and communicated with the funnel; the upper cutting board is provided with cutters with gradually increased density from inside to outside, and the lower cutting board is provided with cutters capable of being matched with the upper cutters of the upper cutting board;

the edge of the lower cutting board is provided with a plurality of through holes, the bottom surface of the lower cutting board is vertically and elastically connected with a sealing ring on the inner wall of the shell in a sliding manner, and a first wedge block which is transversely and elastically connected in the shell wall in a sliding manner is arranged below the sealing ring; the first wedge block is positioned outside the shell, and is externally sleeved with a first limiting rod which is connected to the shell wall in a sliding manner, a through groove which is matched with the first wedge block in shape is formed in the first limiting rod, namely, the first wedge block and the first limiting rod are internally provided with matched inclined planes;

a first partition plate and a second partition plate are fixedly connected in the shell below the lower cutter plate, and a spiral tube capable of communicating a cavity above the first partition plate with a cavity below the second partition plate is arranged between the first partition plate and the second partition plate; a piston plate is vertically and slidably connected in the shell below the second partition plate, two second threaded blocks are laterally and slidably connected below the piston plate, and a second pull rod which penetrates through the shell wall and is laterally and elastically slidably connected in the shell wall is fixedly connected to the second threaded block on one side close to the L-shaped rod; in addition, a third rack and a fourth rack are respectively fixedly connected to the upper part and the lower part of the second thread block, and a second gear which is rotatably connected to the bottom surface of the piston plate and is meshed with the third rack and the fourth rack; the bottom surface of the piston plate is fixedly connected with a second wedge block; a U-shaped plate matched with the second wedge block is transversely and slidably connected in the shell wall, and the upper end of the U-shaped plate can seal the pipe orifice of the spiral pipe;

in addition, the threads on the first threaded shaft are incomplete threads, the threads on the second threaded shaft are also incomplete threads, and the lower parts of the first threaded shaft and the second threaded shaft are both smooth surfaces;

the bottom of the shell is provided with a through hole for discharging liquid, and a liquid permeable membrane is arranged in the through hole.

When the invention is used: the method comprises the steps that a top cover is opened, liquid-phase graphite is added into equipment from a hopper, the top cover is closed, a motor is started, the motor rotates to drive a first threaded shaft fixedly connected with the top cover to rotate, the first threaded shaft rotates to drive a lower cutter plate fixedly connected with the first threaded shaft to rotate, the lower cutter plate rotates to drive a second threaded shaft fixedly connected with the lower cutter plate to rotate, the second threaded shaft rotates to drive an upper cutter plate which is in threaded connection with the upper cutter plate through a first threaded block and is in elastic sliding connection with the upper cutter plate in a shell to move downwards, in the process that the upper cutter plate moves downwards gradually, the liquid-phase graphite is thrown to the edge of the lower cutter plate through centrifugal force, the liquid-phase graphite can be spread out quickly and uniformly, in addition, large-particle powder aggregates usually exist in the liquid-phase graphite, the large-particle powder aggregates can be adhered to a cutter of the upper cutter plate or the lower cutter plate after the liquid-phase graphite is crushed, the powder aggregates are difficult to be cleaned, the density of the upper cutter plate and the lower cutter plate gradually increases from inside, the powder aggregates gradually penetrate into a single-layer, and the lower cutter plate gradually, and the distance between the upper cutter plate gradually decreases;

the upper knife board can also drive a first pull rod in sliding connection with the upper knife board to move downwards while moving downwards, so that the first pull rod extrudes a first limiting rod to move downwards, the first limiting rod moves downwards so that a first wedge block in elastic sliding connection in the shell wall can move outwards under the action of elasticity, so that a sealing ring loses blocking, the sealing ring in elastic sliding connection at the edge of the lower knife board can move downwards under the action of elasticity, so that a cavity between the lower knife board and the upper knife board is communicated with a cavity between a first partition board and the lower knife board through a round hole groove formed in the lower knife board, and graphene liquid can flow to the upper surface of the first partition board along the round hole groove formed in the lower knife board;

meanwhile, the first limiting rod can extrude a first top block connected to the shell in a sliding mode to move towards the shell, the first top block can extrude the second pull rod to move inwards when moving inwards, and therefore the second pull rod can push a second threaded block connected to the piston plate in a sliding mode to move inwards; the second gear which is rotatably connected to the piston plate is meshed with the third rack and the fourth rack at the same time, so that the second thread block on one side is pushed inwards, and the limiting block on the other side can move inwards under the driving of the second gear; the two second thread blocks are in threaded connection with the first threaded shaft, so that the first threaded shaft drives the piston plate to move downwards, and extremely strong negative pressure is generated between the piston plate and the second partition plate; when the piston plate moves to a limit position, the second wedge block fixedly connected below the piston plate can extrude the elastic sliding connection to enable the U-shaped plate to move towards the outside of the shell, so that the U-shaped plate opens an inlet of the spiral tube on the first partition plate, graphene liquid positioned on the first partition plate can be sucked into the spiral tube under the action of air pressure, and the graphene liquid sucked into the spiral tube can be centrifuged under the action of centrifugal force, so that the graphene liquid falling below the second partition plate is layered, and graphene can be conveniently collected;

the motor rotates reversely, the reset motion is opposite to the motion, and details are not described, and in addition, the piston plate is provided with the one-way valve, so that the liquid on the piston plate cannot be driven to move upwards in the upward motion process of the piston plate, and the liquid flows out of the one-way valve; because the bottom of the shell is provided with a liquid discharge hole and a liquid permeable membrane; so by the graphite alkene liquid after the layering, the liquid of lower floor can flow out from the outage on the casing gradually under the effect of gravity, and graphite alkene can deposit in the equipment bottom, opens equipment at last and can obtain pure graphite alkene.

As a further scheme of the invention, a ball valve for preventing liquid from flowing back is rotatably connected in the second threaded shaft above the upper knife plate.

As a further scheme of the invention, a first hinge rod hinged with the L-shaped rod is fixedly connected to the shell wall at the lower end of the L-shaped rod; the ball valve is in rotating connection with the second threaded shaft through two rotating rods which are fixedly connected with the ball valve and penetrate through the second threaded shaft; two first thread blocks capable of being in threaded connection with the second thread shaft are transversely and slidably connected to the upper cutter plate; the two first thread blocks are respectively provided with a second limiting plate matched with the spiral groove on the rotating rod, wherein the second limiting plate close to one side of the L-shaped rod is connected with the first thread blocks in a one-way sliding manner, and the second limiting plate at the other side is fixedly connected with the first thread blocks; the first thread block close to one side of the L-shaped rod is fixedly connected with a first pull rod which penetrates through a through groove on the shell and is connected in the shell wall in a sliding mode, and a stop column which can be matched with the first hinge rod is fixedly connected onto the first pull rod; in addition, the first thread block is fixedly connected with an upper first rack and a lower first rack and a second rack respectively, and the upper cutting board is also rotatably connected with a first gear which is meshed with the first racks and the second racks simultaneously; when in work: because the ball valve is arranged in the second threaded shaft, the opening state of the ball valve is controlled in a troublesome way, when the top cover is expected to be opened, the ball valve can be synchronously opened, and when the top cover is closed, the ball valve can be synchronously closed; the top cover is opened, the L-shaped rod is driven to rotate, the first hinge rod hinged with the L-shaped rod is driven to rotate anticlockwise around a hinge point of the first hinge rod and the first support rod, the first hinge rod can extrude the retaining column to move towards the outer side of the shell, the retaining column is fixedly connected with the first pull rod which is transversely and elastically connected in the shell in a sliding manner, the retaining column can drive the first pull rod to synchronously move due to movement, the first pull rod is fixedly connected with the first thread block which is connected on the upper knife board in a sliding manner, the first pull rod can drive the first thread block to synchronously move, the first rack and the second rack are respectively and fixedly connected to the two first thread blocks, and a first gear which is meshed with the first rack and the second rack and is rotatably connected to the upper knife board is arranged between the first rack and the second rack; therefore, the first threaded block fixedly connected with the first pull rod can move to drive the first rack fixedly connected with the first pull rod to move synchronously, so that the first rack is driven to rotate by driving the first rack to move, the second rack fixedly connected with the first threaded block on the other side is driven to move reversely by the first gear, and finally the first threaded block moves reversely in the opposite direction, so that the threaded connection between the first threaded block and the second threaded shaft is eliminated; in addition, the two first thread blocks are respectively fixedly connected and unidirectionally slidably connected with second limiting plates matched with the rotating shafts on the ball valves, and the second limiting plates unidirectionally slidably connected with the second thread blocks fixedly connected with the first pull rods can only slide towards one side close to the L-shaped rod; the first pull rod pulls the first thread block to move so as to synchronously drive the second limiting plate on the same side to move, and the second limiting plate on the other side is fixedly connected with the first thread block on the other side, so that the two second limiting plates synchronously move towards the directions away from each other, and the ball valve is driven to rotate through the spiral groove on the rotating shaft, so that the ball valve is in a communicated state when the top cover is opened; when the top cover is closed, the ball valve can be closed by moving in a direction opposite to the movement; thereby facilitating manual operation and improving the stability of the device.

As a further scheme of the invention, one end, close to the L-shaped rod, of a second limiting plate which is connected to a first threaded block in a one-way sliding manner, close to the L-shaped rod, is provided with two first limiting plates which are connected to an upper cutting board in a sliding manner through sliding grooves, annular grooves are formed in the first limiting plates, each annular groove is composed of a straight groove and a convex groove, a straight section is also arranged in each convex groove, and the first limiting plates are connected to the annular grooves in a sliding manner through sliding columns; when in work: because the gap between the upper knife plate and the lower knife plate is not large, only a part of graphite can be processed each time, more liquid-phase graphite is hopefully added at one time, the equipment can automatically finish the processing of the added graphite in batches, and the top cover does not need to be opened for feeding all the time; when the second threaded shaft drives the upper knife board to vertically move downwards to a limit position, the first limiting board which is connected in the upper knife board in a sliding mode can synchronously move downwards, in the process again, the sliding column on the second limiting board is always located in the straight groove, so that the second limiting board cannot move, namely the rotating shaft cannot drive the ball valve to rotate, when the motor rotates reversely, the first limiting board can also drive the upper knife board to synchronously move upwards when the upper knife board is driven to move upwards, in the process, the sliding column on the second limiting board can move along the convex groove, so that the second limiting board is pulled, the ball valve is driven to rotate through the rotating shaft, the ball valve is opened, and liquid phase graphite in the funnel flows into a gap between the upper knife board and the lower knife board; when the upper cutter plate drives the first limiting plate to ascend to the limit position, the sliding column on the second limiting plate can move into the straight groove in the first limiting plate, and the ball valve can be closed; the steps are repeated in this way, so that the graphite in the hopper is completely treated.

As a further scheme of the invention, the contact surface of the sealing ring and the lower cutter plate is an arc inclined surface, so that liquid can not remain on the sealing ring when flowing down.

As a further aspect of the invention, the apparatus uses the following method:

step 1: preparing a graphite solution;

step 2: adding a graphite solution into a funnel;

and step 3: starting a motor to enable the upper cutter plate and the lower cutter plate to process the upper cutter plate and the lower cutter plate;

and 4, step 4: centrifuging the graphene solution by a spiral tube to layer the graphene solution;

and 5: and taking the filtered graphene out of the equipment.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the clearance between the upper cutting board and the lower cutting board can be gradually reduced through the matching of the upper cutting board and the lower cutting board, so that the surface layers of graphite particles can be peeled off layer by layer when some graphite with different particle sizes is sheared, and the problem that the peeled graphene has relatively small area and poor quality due to direct grinding of the graphite particles is avoided, and more graphene with larger area and better quality can be obtained.

2. When liquid phase graphite is processed, the through hole can be automatically opened according to the gap between the upper cutting board and the lower cutting board, so that the peeled graphene can flow to the first partition board along with liquid to wait for centrifugation, and meanwhile, the piston board can be started to vacuumize the cavity between the first partition board and the second partition board, so that the graphene solution can have extremely high flow velocity when passing through the spiral pipe (36), the small centrifugation effect is achieved, the operation of personnel is facilitated on the premise of not increasing the load of graphene preparation equipment, the graphene solution does not need to be put into a centrifugal machine for centrifugation, a container replacing device is not needed, the waste of materials converted in the process is reduced, and a large amount of time is saved.

3. According to the invention, only one-time feeding is needed, the first limiting plate driven by the upper cutter plate can drive the ball valve to automatically feed a certain amount of solution from the funnel after the liquid-phase graphite is processed for one time, and when the motor rotates forwards again to process the liquid-phase graphite, the ball valve is closed again under the action of the first limiting plate, and the operations are repeated, so that one-time feeding is realized.

4. The invention can also flow the processed liquid into the cavity between the piston plate and the inner bottom of the shell through the one-way valve on the piston plate, so that the liquid at the bottom is automatically discharged from the liquid discharge hole on the shell under the action of gravity, and the graphene at the upper layer is filtered, thereby ensuring that the graphene solution processed in the invention can not interfere the work of the piston plate after continuous and repeated processing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a flow chart of the method of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic view of the hidden upper part of the casing according to the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3;

FIG. 5 is a schematic view of the present invention in full section;

FIG. 6 is an enlarged view of the structure at B in FIG. 5;

FIG. 7 is a schematic perspective view of FIG. 5;

FIG. 8 is a bottom view of the structure of FIG. 7;

FIG. 9 is an enlarged view of the structure of FIG. 8 at C;

FIG. 10 is a partial cross-sectional structural view of the lower cutter plate;

fig. 11 is an enlarged schematic view of fig. 10 at D.

In the drawings, the components represented by the respective reference numerals are listed below:

1-top cover, 2- 'L' rod, 3-first support rod, 4-first hinge rod, 5-baffle column, 6-first pull rod, 7-first wedge block, 8-first limiting rod, 9-first top block, 10-second pull rod, 11-funnel, 12-ball valve, 13-first limiting plate, 13-1-straight groove, 13-2-convex groove, 14-second limiting plate, 15-rotating rod, 16-upper knife plate, 16-1-sliding groove, 17-lower knife plate, 17-1-sealing ring, 18-first threaded shaft, 19-second threaded shaft, 20-first threaded block, 21- 'U' shaped plate, 22-second wedge block, 23-motor, 24-second threaded block, 25-one-way valve, 26-piston plate, 27-first rack, 28-second rack, 29-first gear, 30-shell, 31-third rack, 32-fourth gear, 33-second rack, 33-second spiral pipe, 35-second partition plate, and 36-spiral pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-11, the present invention provides a technical solution:

a graphene material production device comprises a top cover 1, a shell 30, a funnel 11 and a motor 23, wherein the top cover 1 is hinged with the shell 30 through an L-shaped rod 2, and the funnel 11 is fixedly connected in the shell 30 below the top cover 1; the motor 23 is fixedly connected to the inner bottom surface of the shell 30, the output end of the motor 23 is fixedly connected with a first threaded shaft 18, a lower knife board 17 is fixedly connected to the first threaded shaft 18, a second threaded shaft 19 is fixedly connected to the lower knife board 17, the second threaded shaft 19 is a hollow shaft and is provided with a plurality of hollowed gaps for liquid to flow into the lower knife board 17 from the funnel 11, and an upper knife board 16 vertically connected with the shell 30 in a sliding manner is arranged above the second threaded shaft 19; the second threaded shaft 19 passes through the upper knife plate 16 and is rotationally connected and communicated with the funnel 11; cutters with gradually increased density are arranged on the upper cutter plate 16 from inside to outside, and cutters capable of being matched with the cutters on the upper cutter plate 16 are arranged on the lower cutter plate 17;

the edge of the lower knife board 17 is provided with a plurality of through holes, the bottom surface of the lower knife board 17 is vertically and elastically connected with a sealing ring 17-1 on the inner wall of the shell 30 in a sliding way, and a first wedge block 7 which is transversely and elastically connected in the wall of the shell 30 in a sliding way is arranged below the sealing ring 17-1; a first limiting rod 8 which is slidably connected to the wall of the shell 30 is sleeved outside the outer side part of the shell 30 of the first wedge 7, a through groove matched with the first wedge 7 in shape is formed in the first limiting rod 8, namely, the first wedge 7 and the first limiting rod 8 are both provided with matched inclined planes;

a first clapboard 34 and a second clapboard 35 are fixedly connected in the shell 30 below the lower knife board 17, and a spiral pipe 36 which can communicate a cavity above the first clapboard 34 with a cavity below the second clapboard 35 is arranged between the first clapboard 34 and the second clapboard 35; a piston plate 26 is vertically and slidably connected in the shell 30 below the second partition plate 35, two second threaded blocks 24 are transversely and slidably connected below the piston plate 26, wherein the second threaded block 24 close to one side of the L-shaped rod 2 is fixedly connected with a second pull rod 10 which penetrates through the wall of the shell 30 and is transversely and elastically slidably connected in the wall of the shell 30; in addition, the second screw block 24 is fixedly connected with a third rack 31 and a fourth rack 32 up and down, respectively, and a second gear 33 which is rotatably connected to the bottom surface of the piston plate 26 and is simultaneously meshed with the third rack 31 and the fourth rack 32; the bottom surface of the piston plate 26 is fixedly connected with a second wedge block 22; a U-shaped plate 21 matched with the second wedge block 22 is transversely and slidably connected in the wall of the shell 30, and the upper end of the U-shaped plate 21 can seal the pipe orifice of the spiral pipe 36;

in addition, the thread on the first threaded shaft 18 is an incomplete thread, the thread on the second threaded shaft 19 is also an incomplete thread, and the lower parts of the first threaded shaft 18 and the second threaded shaft 19 are both smooth surfaces;

the bottom of the housing 30 is provided with a through hole for discharging liquid, and a liquid permeable membrane is provided in the through hole.

When in work: opening the top cover 1, adding liquid-phase graphite into the equipment from the hopper 11, closing the top cover 1, starting the motor 23, wherein the motor 23 rotates to drive the first threaded shaft 18 fixedly connected with the motor to rotate, the first threaded shaft 18 rotates to drive the lower cutter plate 17 fixedly connected with the first threaded shaft to rotate, the lower cutter plate 17 rotates to drive the second threaded shaft 19 fixedly connected with the lower cutter plate to rotate, the second threaded shaft 19 rotates to drive the upper cutter plate 16 which is in threaded connection with the first threaded shaft 20 and is elastically and slidably connected into the shell 30 to move downwards, when the upper cutter plate 16 gradually moves downwards, the liquid-phase graphite is thrown to the edge of the lower cutter plate 17 through centrifugal force, so that the liquid-phase graphite can be quickly and uniformly spread out, in addition, because large-particle powder polymers usually exist in the liquid-phase graphite, the crushed liquid-phase graphite can be adhered to the cutter of the upper cutter plate 16 or the lower cutter plate 17 after being crushed, the liquid-phase graphite is difficult to clean, because the powder polymers on the upper cutter plate 16 and the lower cutter plate 17 cut to the inside gradually block the lower cutter plate, the dust polymers, the lower cutter plate will not be quickly adhered to the edge of the cutter plate 17, and the lower cutter plate 17, and the dust will gradually flows to the lower cutter plate 17, and the upper cutter plate 17 will gradually flows, and the distance between the upper cutter plate 17 will be gradually decreased, and the graphite will be gradually decreased;

the upper knife plate 16 can move downwards while driving the first pull rod 6 in sliding connection with the upper knife plate to move downwards, so that the first pull rod 6 extrudes the first limiting rod 8 to move downwards, the first limiting rod 8 moves downwards so that the first wedge 7 elastically connected in the wall of the shell 30 can move outwards of the shell 30 under the action of elastic force, the sealing ring 17-1 is not blocked, the sealing ring 17-1 elastically connected in a sliding mode at the edge of the lower knife plate 17 can move downwards under the action of elastic force, so that a cavity between the lower knife plate 17 and the upper knife plate 16 is communicated with a cavity between the first partition plate 34 and the lower knife plate 17 through a round hole groove formed in the lower knife plate 17, and graphene liquid can flow to the upper surface of the first partition plate 34 along the round hole groove in the lower knife plate 17;

meanwhile, the first limit rod 8 extrudes the first top block 9 connected to the housing 30 in a sliding manner to move towards the housing 30, and the inward movement of the first top block 9 extrudes the second pull rod 10 to move inwards, so that the second pull rod 10 pushes the second thread block 24 connected to the piston plate 26 in a sliding manner to move inwards; because the third rack 31 and the fourth rack 32 are fixedly connected to the two second stoppers, respectively, and the second gear 33 rotatably connected to the piston plate 26 is engaged with the third rack 31 and the fourth rack 32, the second screw block 24 on one side is pushed inward, and the stoppers on the other side are also driven by the second gear 33 to move inward; so that the two second threaded blocks 24 are in threaded connection with the first threaded shaft 18, so that the first threaded shaft 18 drives the piston plate 26 to move downwards, thereby generating an extremely strong negative pressure between the piston plate 26 and the second partition plate 35; when the piston plate 26 moves to the limit position, the second wedge 22 fixedly connected below the piston plate 26 can extrude the elastic sliding connection to enable the U-shaped plate 21 to move towards the outside of the shell 30, so that the U-shaped plate 21 opens the inlet of the spiral tube 36 on the first partition plate 34, graphene liquid on the first partition plate 34 can be sucked into the spiral tube 36 under the action of air pressure, and the graphene liquid sucked into the spiral tube 36 can be centrifuged under the action of centrifugal force, so that the graphene liquid falling below the second partition plate 35 is layered, and graphene can be conveniently collected;

then the motor 23 rotates reversely, the reset movement is opposite to the above movement, which is not described in detail, and in addition, the piston plate 26 is provided with the one-way valve 25, so that the liquid on the piston plate 26 is not driven to move upwards in the upward movement process of the piston plate 26, and the liquid flows out from the one-way valve 25; because the bottom of the shell 30 is provided with a liquid discharge hole and a liquid permeable membrane; so by the graphite alkene liquid after the layering, the liquid of lower floor can flow out from the outage on the casing 30 gradually under the effect of gravity, and graphite alkene can deposit in the equipment bottom, opens equipment at last and can obtain pure graphite alkene.

As a further aspect of the present invention, a ball valve 12 for preventing backflow of liquid is rotatably connected to the second screw shaft 19 above the upper cutter plate 16.

As a further proposal of the invention, a first articulated rod 4 articulated with the L-shaped rod 2 is fixedly connected on the wall of the shell 30 at the lower end of the L-shaped rod 2; the ball valve 12 is rotatably connected with the second threaded shaft 19 through two rotating rods 15 which are fixedly connected with the ball valve and penetrate through the second threaded shaft 19; two first thread blocks 20 capable of being in threaded connection with the second thread shaft 19 are transversely and slidably connected to the upper knife plate 16; the two first thread blocks 20 are respectively provided with a second limiting plate 14 matched with the spiral groove on the rotating rod 15, wherein the second limiting plate 14 close to one side of the L-shaped rod 2 is connected with the first thread blocks 20 in a one-way sliding manner, and the second limiting plate 14 at the other side is fixedly connected with the first thread blocks 20; the first thread block 20 close to one side of the L-shaped rod 2 is fixedly connected with a first pull rod 6 which penetrates through a through groove on the shell 30 and is connected in the wall of the shell 30 in a sliding manner, and a stop column 5 which can be matched with the first hinge rod 4 is fixedly connected on the first pull rod 6; in addition, the first thread block 20 is fixedly connected with an upper first rack 27 and a lower first rack 28 respectively, and the upper cutting board 16 is also rotatably connected with a first gear 29 which is meshed with the first rack 27 and the second rack 28 simultaneously; when in work: since the ball valve 12 is arranged in the second threaded shaft 19, the control of the opening state of the ball valve 12 is troublesome, when the top cover 1 is desired to be opened, the ball valve 12 can be synchronously opened, and when the top cover 1 is closed, the ball valve 12 can be synchronously closed; when the top cover 1 is opened, the "L" rod 2 is driven to rotate so as to drive the first hinge rod 4 hinged with the "L" rod to rotate anticlockwise around a hinge point of the first hinge rod 4 and the first support rod 3, so that the first hinge rod 4 can press the stop pillar 5 to move towards the outer side of the housing 30, because the stop pillar 5 is fixedly connected with the first pull rod 6 which is elastically and transversely connected in the housing 30 in a sliding manner, the stop pillar 5 moves to drive the first pull rod 6 to move synchronously, and because the first pull rod 6 is fixedly connected with the first thread block 20 which is connected on the upper knife plate 16 in a sliding manner, the first pull rod 6 also drives the first thread block 20 to move synchronously, because the first rack 27 and the second rack 28 are fixedly connected on the two first thread blocks 20 respectively, and a first gear 29 which is meshed with the first rack 27 and the second rack 28 and is rotatably connected on the upper knife plate 16 is arranged between the first rack 27 and the second rack 28; therefore, the first thread block 20 fixedly connected with the first pull rod 6 moves to drive the first rack 27 fixedly connected with the first pull rod to move synchronously, so that the first rack 27 is driven to rotate by driving the first rack 27, the second rack 28 fixedly connected with the first thread block 20 on the other side is driven to move reversely by the first rack 29, and finally the first thread block 20 moves reversely, so that the screw connection between the first thread block 20 and the second thread shaft 19 is released; in addition, since the two first thread blocks 20 are fixedly connected and unidirectionally slidably connected with the second limit plates 14 matched with the rotating shafts on the ball valve 12, respectively, the second limit plates 14 unidirectionally slidably connected with the second thread blocks 24 fixedly connected with the first pull rod 6 can only slide to one side close to the "L" rod 2; therefore, the first pull rod 6 pulls the first thread block 20 to move so as to synchronously drive the second limiting plates 14 on the same side to move, and the second limiting plates 14 on the other side are fixedly connected with the first thread block 20 on the other side, so that the two second limiting plates 14 synchronously move towards directions away from each other, and the ball valve 12 is driven to rotate through the spiral groove on the rotating shaft, so that the ball valve 12 is in a communicated state when the top cover 1 is opened; when the top cover 1 is closed, the movement opposite to the movement is carried out, and the ball valve 12 can be closed; thereby facilitating manual operation and improving the stability of the device.

As a further scheme of the invention, one end, close to the L-shaped rod 2, of a second limit plate 14 which is connected to a first thread block 20 in a one-way sliding mode, close to the L-shaped rod 2, is provided with two first limit plates 13 which are connected to an upper knife plate 16 in a sliding mode through sliding grooves 16-1, annular grooves are formed in the first limit plates 13, each annular groove is composed of a straight groove 13-1 and a convex groove 13-2, a straight-going section is also arranged in each convex groove 13-2, and the first limit plates 13 are connected to the annular grooves in a sliding mode through sliding columns; when in work: because the gap between the upper knife board 16 and the lower knife board 17 is not large, only a part of graphite can be processed each time, more liquid phase graphite is expected to be added at one time, the equipment can automatically process the added graphite in batches, and the top cover 1 is not required to be opened for feeding all the time; when the second threaded shaft 19 drives the upper knife board 16 to vertically move downwards to a limit position, the first limiting board 13 connected in the upper knife board 16 in a sliding mode can synchronously move downwards, and in the process again, the sliding column on the second limiting board 14 is always positioned in the straight groove 13-1, so that the second limiting board 14 cannot move, namely the rotating shaft cannot drive the ball valve 12 to rotate, when the motor 23 rotates reversely and drives the upper knife board 16 to move upwards, the first limiting board 13 can also drive the upper knife board 16 on the shell 30 to synchronously move upwards, and in the process, the sliding column on the second limiting board 14 can move along the convex groove 13-2, so that the second limiting board 14 is pulled, the ball valve 12 is driven to rotate through the rotating shaft, the ball valve 12 is opened, and liquid phase graphite in the funnel 11 flows into a gap between the upper knife board 16 and the lower knife board 17; when the upper knife board 16 drives the first limit board 13 to rise to the limit position, the sliding column on the second limit board 14 moves into the straight groove 13-1 in the first limit board 13, and the ball valve 12 is closed; this is repeated to completely treat the graphite in the hopper 11.

As a further scheme of the invention, the contact surface of the sealing ring 17-1 and the lower cutter plate 17 is an arc inclined surface, so that liquid does not remain on the sealing ring 17-1 when flowing down.

As a further aspect of the invention, the apparatus uses the following method:

step 1: preparing a graphite solution;

step 2: adding a graphite solution into a funnel;

and step 3: starting a motor to enable the upper cutter plate and the lower cutter plate to process the upper cutter plate and the lower cutter plate;

and 4, step 4: centrifuging the graphene solution through a spiral pipe to stratify the graphene solution;

and 5: and taking the filtered graphene out of the equipment.

The working principle is as follows: opening the top cover 1, adding liquid-phase graphite into the equipment from the hopper 11, closing the top cover 1, starting the motor 23, wherein the motor 23 rotates to drive the first threaded shaft 18 fixedly connected with the motor to rotate, the first threaded shaft 18 rotates to drive the lower cutter plate 17 fixedly connected with the first threaded shaft to rotate, the lower cutter plate 17 rotates to drive the second threaded shaft 19 fixedly connected with the lower cutter plate to rotate, the second threaded shaft 19 rotates to drive the upper cutter plate 16 which is in threaded connection with the first threaded shaft 20 and is elastically and slidably connected into the shell 30 to move downwards, when the upper cutter plate 16 gradually moves downwards, the liquid-phase graphite is thrown to the edge of the lower cutter plate 17 through centrifugal force, so that the liquid-phase graphite can be quickly and uniformly spread out, in addition, because large-particle powder polymers usually exist in the liquid-phase graphite, the crushed liquid-phase graphite can be adhered to the cutter of the upper cutter plate 16 or the lower cutter plate 17 after being crushed, the liquid-phase graphite is difficult to clean, because the powder polymers on the upper cutter plate 16 and the lower cutter plate 17 cut to the inside gradually block the lower cutter plate, the dust polymers, the lower cutter plate will not be quickly adhered to the edge of the cutter plate 17, and the lower cutter plate 17, and the dust will gradually flows to the lower cutter plate 17, and the upper cutter plate 17 will gradually flows, and the distance between the upper cutter plate 17 will be gradually decreased, and the graphite will be gradually decreased;

the upper knife plate 16 can move downwards while driving the first pull rod 6 in sliding connection with the upper knife plate to move downwards, so that the first pull rod 6 extrudes the first limiting rod 8 to move downwards, the first limiting rod 8 moves downwards so that the first wedge 7 elastically connected in the wall of the shell 30 can move outwards of the shell 30 under the action of elastic force, the sealing ring 17-1 is not blocked, the sealing ring 17-1 elastically connected in a sliding mode at the edge of the lower knife plate 17 can move downwards under the action of elastic force, so that a cavity between the lower knife plate 17 and the upper knife plate 16 is communicated with a cavity between the first partition plate 34 and the lower knife plate 17 through a round hole groove formed in the lower knife plate 17, and graphene liquid can flow to the upper surface of the first partition plate 34 along the round hole groove in the lower knife plate 17;

meanwhile, the first limiting rod 8 extrudes the first top block 9 connected to the shell 30 in a sliding manner to move towards the shell 30, and the inward movement of the first top block 9 extrudes the second pull rod 10 to move inwards, so that the second pull rod 10 pushes the second thread block 24 connected to the piston plate 26 in a sliding manner to move inwards; because the third rack 31 and the fourth rack 32 are fixedly connected to the two second stoppers, respectively, and the second gear 33 rotatably connected to the piston plate 26 is engaged with the third rack 31 and the fourth rack 32, the second screw block 24 on one side is pushed inward, and the stoppers on the other side are also driven by the second gear 33 to move inward; so that the two second screw blocks 24 are screwed with the first screw shaft 18, so that the first screw shaft 18 drives the piston plate 26 to move downwards, thereby generating an extremely strong negative pressure between the piston plate 26 and the second partition plate 35; when the piston plate 26 moves to the limit position, the second wedge 22 fixedly connected below the piston plate 26 can extrude the elastic sliding connection to enable the U-shaped plate 21 to move towards the outside of the shell 30, so that the U-shaped plate 21 opens the inlet of the spiral tube 36 on the first partition plate 34, graphene liquid on the first partition plate 34 can be sucked into the spiral tube 36 under the action of air pressure, and the graphene liquid sucked into the spiral tube 36 can be centrifuged under the action of centrifugal force, so that the graphene liquid falling below the second partition plate 35 is layered, and graphene can be conveniently collected;

then the motor 23 rotates reversely, the reset movement is opposite to the above movement, which is not described in detail, and in addition, the piston plate 26 is provided with the check valve 25, so that the liquid on the piston plate 26 is not driven to move upwards in the process of the upward movement of the piston plate 26, and the liquid flows out of the check valve 25; because the bottom of the shell 30 is provided with a liquid discharge hole and a liquid permeable membrane; so by the graphite alkene liquid after the layering, the liquid of lower floor can flow out from the outage on the casing 30 gradually under the effect of gravity, and graphite alkene can deposit in the equipment bottom, opens equipment at last and can obtain pure graphite alkene.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (5)

1. The graphene material production equipment comprises a top cover (1), a shell (30), a funnel (11) and a motor (23), wherein the top cover (1) is hinged with the shell (30) through an L-shaped rod (2), and the funnel (11) is fixedly connected in the shell (30) below the top cover (1); motor (23) fixed connection is at the interior bottom surface of casing (30), its characterized in that: the output end of the motor (23) is fixedly connected with a first threaded shaft (18), a lower cutting board (17) is fixedly connected onto the first threaded shaft (18), a second threaded shaft (19) is fixedly connected onto the lower cutting board (17), the second threaded shaft (19) is a hollow shaft and is provided with a plurality of hollowed gaps for liquid to flow into the lower cutting board (17) from the funnel (11), and an upper cutting board (16) vertically connected with the shell (30) in a sliding manner is arranged above the second threaded shaft (19); the second threaded shaft (19) penetrates through the upper knife plate (16) to be rotatably connected and communicated with the hopper (11); cutters with gradually increased density are arranged on the inner side and the outer side of the upper cutter plate (16), and cutters capable of being matched with the cutters on the upper cutter plate (16) are arranged on the lower cutter plate (17);

a plurality of through holes are formed in the edge of the lower cutting board (17), the bottom surface of the lower cutting board (17) is vertically and elastically connected with a sealing ring (17-1) on the inner wall of the shell (30) in a sliding manner, and a first wedge block (7) which is transversely and elastically connected in the wall of the shell (30) in a sliding manner is arranged below the sealing ring (17-1); the first wedge block (7) is positioned outside the shell (30) and is sleeved with a first limiting rod (8) which is connected to the wall of the shell (30) in a sliding mode, a through groove matched with the first wedge block (7) in shape is formed in the first limiting rod (8), namely, the first wedge block (7) and the first limiting rod (8) are both provided with matched inclined planes;

a first partition plate (34) and a second partition plate (35) are fixedly connected in the shell (30) below the lower cutter plate (17), and a spiral pipe (36) capable of communicating a cavity above the first partition plate (34) with a cavity below the second partition plate (35) is arranged between the first partition plate (34) and the second partition plate (35); a piston plate (26) is vertically connected in a sliding manner in the shell (30) below the second partition plate (35), two second threaded blocks (24) are transversely connected below the piston plate (26) in a sliding manner, wherein the second threaded block (24) close to one side of the L-shaped rod (2) is fixedly connected with a second pull rod (10) which penetrates through the wall of the shell (30) and is transversely and elastically connected in the wall of the shell (30) in a sliding manner; in addition, a third rack (31) and a fourth rack (32) are respectively fixedly connected to the upper part and the lower part of the second thread block (24), and a second gear (33) is rotatably connected to the bottom surface of the piston plate (26) and is meshed with the third rack (31) and the fourth rack (32); the bottom surface of the piston plate (26) is fixedly connected with a second wedge block (22); a U-shaped plate (21) matched with the second wedge block (22) is transversely connected in the wall of the shell (30) in a sliding manner, and the upper end of the U-shaped plate (21) can seal the pipe orifice of the spiral pipe (36);

in addition, the thread on the first threaded shaft (18) is an incomplete thread, the thread on the second threaded shaft (19) is an incomplete thread, and the lower parts of the first threaded shaft (18) and the second threaded shaft (19) are smooth surfaces;

the bottom of the shell (30) is provided with a through hole for discharging liquid, and a liquid permeable membrane is arranged in the through hole.

2. The graphene material production apparatus according to claim 1, wherein: a ball valve (12) for preventing liquid from flowing back is rotatably connected in the second threaded shaft (19) above the upper knife plate (16).

3. The graphene material production apparatus according to claim 2, wherein: a first hinge rod (4) hinged with the L-shaped rod (2) is fixedly connected to the wall of the shell (30) at the lower end of the L-shaped rod (2); the ball valve (12) is rotatably connected with the second threaded shaft (19) through two rotating rods (15) which are fixedly connected with the ball valve and penetrate through the second threaded shaft (19); the upper knife plate (16) is transversely and slidably connected with two first thread blocks (20) which can be in threaded connection with the second thread shaft (19); the two first thread blocks (20) are respectively provided with a second limiting plate (14) matched with the spiral grooves on the rotating rod (15), wherein the second limiting plate (14) close to one side of the L-shaped rod (2) is connected with the first thread blocks (20) in a one-way sliding manner, and the second limiting plate (14) on the other side is fixedly connected with the first thread blocks (20); the first thread block (20) close to one side of the L-shaped rod (2) is fixedly connected with a first pull rod (6) which penetrates through a through groove in the shell (30) and is connected into the wall of the shell (30) in a sliding mode, and a stop column (5) which can be matched with the first hinge rod (4) is fixedly connected onto the first pull rod (6); in addition, an upper first rack (27) and a lower first rack (28) are fixedly connected to the first thread block (20), and a first gear (29) meshed with the first rack (27) and the second rack (28) is rotatably connected to the upper knife plate (16).

4. The graphene material production apparatus according to claim 3, wherein: one end that second limiting plate (14) on first screw thread piece (20) of one-way sliding connection (being close to "L" pole (2) one side is close to "L" pole (2) is provided with two first limiting plate (13) on last cutting board (16) through spout (16-1) sliding connection, be provided with the annular in first limiting plate (13), the annular has straight flute (13-1) and tongue (13-2) to constitute, also have the straight section in tongue (13-2), first limiting plate (13) are through traveller sliding connection in the annular.

5. A graphene material production method, which is applied to the graphene material production apparatus according to any one of claims 1 to 4, characterized in that: the method comprises the following specific steps:

step 1: preparing a graphite solution;

step 2: adding a graphite solution into a funnel;

and step 3: starting a motor to enable the upper cutter plate and the lower cutter plate to process the upper cutter plate and the lower cutter plate;

and 4, step 4: centrifuging the graphene solution by a spiral tube to layer the graphene solution;

and 5: and taking the filtered graphene out of the equipment.

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