CN114014309A - Water-soluble graphene production equipment and method based on electric field melting - Google Patents
Water-soluble graphene production equipment and method based on electric field melting Download PDFInfo
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- CN114014309A CN114014309A CN202111568622.0A CN202111568622A CN114014309A CN 114014309 A CN114014309 A CN 114014309A CN 202111568622 A CN202111568622 A CN 202111568622A CN 114014309 A CN114014309 A CN 114014309A
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Abstract
The invention discloses a water-soluble graphene production device and method based on electric field melting, and particularly relates to the technical field of graphene production, the existing graphene production technology has certain pollution to the environment, can not be used for all-weather long-time non-stop production, and can not clean the inner wall of a separation cylinder, the water-soluble graphene production device comprises a feeding mechanism, the feeding mechanism comprises a storage box, one side of the storage box is provided with a storage cylinder, a piston is arranged in the storage cylinder in a sliding manner, one side of the storage cylinder is provided with a processing device, the processing device comprises the separation cylinder, a movable grinding head, a fixed grinding head and a scraper are arranged in the separation cylinder, the piston is lifted to achieve the effect of automatically adding mixed liquid, the scraper rotates to clean the attachments on the inner wall of the separation cylinder, and the electric arc in an external electric field is used for continuously breaking and melting graphite particles in a graphite mixed solution, to produce graphene.
Description
Technical Field
The invention relates to the technical field of graphene production, in particular to water-soluble graphene production equipment and a water-soluble graphene production method based on electric field melting.
Background
The production method for preparing graphene by domestic and foreign manufacturers in the current market comprises the following steps: mechanical lift-off, redox, SiC epitaxial growth, but these methods have the disadvantages of high energy consumption, low yield, poor quality, high price and severe environmental pollution. Therefore, the industrial pollution-free mass and low-cost production of the graphene is a major problem in technical attack of industrial and mining enterprises and scientific research institutions all over the country.
1. In the existing graphene production technology, graphite mixed liquid needs to be added manually, and the graphite mixed liquid cannot be added automatically to realize all-weather long-time non-stop production of graphene;
2. when graphene is separated, a sticky mixture of multilayer graphite and graphene is generated and attached to the inner wall of the separation cylinder, so that the graphene is inconvenient to clean;
3. the technology of high-speed grinding, targeted electron smashing and condensation separation is adopted, so that the production of the graphene can be massively produced under normal temperature and normal conditions, no chemical reagent is added in the whole production process, and the method is free from environmental pollution and noise.
Therefore, an electric field melting-based water-soluble graphene production device and method are provided for solving the problems.
Disclosure of Invention
The invention aims to provide water-soluble graphene production equipment and method based on electric field melting, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the water-soluble graphene production equipment based on electric field melting comprises a feeding mechanism, wherein the feeding mechanism comprises a storage box, a bottom plate is installed on one side of the storage box, symmetrical storage cylinders are installed at the top end of the bottom plate, arc-shaped clamping blocks are installed above the storage cylinders, arc-shaped columns are slidably arranged inside the arc-shaped clamping blocks, threaded cylinders are rotatably arranged inside the arc-shaped columns, threaded rods are arranged inside the threaded cylinders, pistons are installed at the bottom ends of the threaded rods, racks are installed on one sides of the arc-shaped clamping blocks, first gears are meshed with the racks, rotating rods are installed at the centers of the first gears, rotating discs are installed between the symmetrical storage cylinders, fan-shaped side toothed rings are installed on one sides of the rotating discs, symmetrical third gears can be meshed with the fan-shaped side toothed rings, and connecting shafts are installed at the centers of the symmetrical third gears;
the utility model discloses a storage case, including storage case, bottom plate, processingequipment, a separator, a spacing section of thick bamboo, spacing section of thick bamboo inside bottom is installed, the inside rotation of a spacing section of thick bamboo is equipped with the rotation post, rotation post internally mounted has first electrode line, the rotation capital end is installed and is moved the bistrique, sealed lid is installed to the separator top, it is equipped with the swivel becket to rotate between a separator and the sealed lid, swivel becket bottom end annular distribution has a plurality of scraper blade, sealed lid center department installs the inlet pipe, the bistrique is decided to inlet pipe lower extreme outer lane is installed, it slides and is equipped with the second electrode line to decide the bistrique top, it has a plurality of spring to decide bistrique top annular distribution, the condenser pipe is installed on sealed lid top, the back flow is installed in the separator outside.
Preferably, the first connecting pipe of symmetry is installed to storage tank bottom, the inside center department of storage tank installs the baffle, the storage tank forms two storage spaces with the baffle, and is symmetrical first connecting pipe one end can communicate with two storage spaces are inside respectively, and is symmetrical the first connecting pipe other end can communicate with the storage section of thick bamboo lower extreme of symmetry respectively, and with the inside intercommunication of storage section of thick bamboo.
Preferably, fixed frame is installed to storage section of thick bamboo outer lane, the first backup pad of symmetry is installed to fixed frame outer lane, the symmetry first backup pad fixed mounting is on the bottom plate top, the second connecting pipe is installed on storage section of thick bamboo top, the second connecting pipe other end is connected with the inlet pipe top, and the second connecting pipe both ends respectively with the inside and the inside intercommunication of inlet pipe of storage section of thick bamboo, all be equipped with the valve on first connecting pipe and the second connecting pipe.
Preferably, the round hole of symmetry is seted up to arc post bottom, the inside slip of round hole is equipped with the guide bar, guide bar bottom and piston top fixed connection, the piston can be in the inside slip of storage section of thick bamboo, the symmetry install the fixed block of symmetry between the first backup pad, the arc fixture block is installed between the fixed block of symmetry, the fixed plate of symmetry is installed to arc fixture block one side, the dwang passes through the bearing and rotates the setting on the fixed block of symmetry and the first backup pad of symmetry.
Preferably, bottom plate top center department installs the second backup pad of symmetry, the symmetry rotate through the bearing in the second backup pad and be equipped with the axis of rotation, the one end and the carousel center fixed connection of locating of storage case are kept away from to the axis of rotation, first outer ring gear is installed to the carousel outer lane, first outer ring gear meshing has the second gear, first motor is installed on second backup pad top, first motor output and second gear center fixed connection of locating, the connecting axle both ends respectively with the dwang one end fixed connection of symmetry.
Preferably, the lower end of the rotating column is rotatably arranged at the top end inside the fixed cylinder through a bearing, the lower end of the first electrode wire is fixedly arranged at the lower end of the fixed cylinder, the top end of the first electrode wire is in contact with the center of the bottom end of the movable grinding head, a first jack is formed inside the rotating column, and the upper end of the first electrode wire is not in contact with the inner wall of the first jack.
Preferably, the fourth gear is installed to rotation post outer lane lower extreme, the second motor is installed on the inside top of solid fixed cylinder, fifth gear and action wheel are installed to the second motor output, fourth gear and fifth gear engagement, action wheel outer lane cover is equipped with the belt, belt other pot head is equipped with from the driving wheel.
Preferably, a plurality of connecting block that the annular distributes is installed to the cylinder outer lane, a plurality of that the annular distributes connecting block top and sealed lid outer lane fixed connection, the outer ring gear of second is installed to the rotating ring outer lane, the outer ring gear meshing of second has the sixth gear, a plurality of supporting seat, a plurality of are installed to the cylinder outside rotate on the supporting seat and be equipped with the transmission shaft, transmission shaft top and bottom respectively with sixth gear center department with from driving wheel center department fixed connection, the scraper blade outside contacts with the cylinder inner wall.
Preferably, the spring top end and the bottom fixed connection of sealed lid, the inside slip of spring is equipped with drum and gag lever post, drum top and sealed lid bottom fixed connection, the gag lever post bottom with decide bistrique top fixed connection, spacing post is installed on the gag lever post top, gag lever post upper end and spacing post can slide inside the drum, decide to have seted up the through-hole on the bistrique, through-hole and inlet pipe intercommunication.
Preferably, second electrode line fixed mounting is on the closing cap, the back flow both ends respectively with inlet pipe top and cylinder lower extreme fixed connection, and the back flow can with the inside intercommunication of inlet pipe and cylinder, be provided with the circulating pump on the back flow, install the condensing box on the back flow.
An electric field melting-based water-soluble graphene production method comprises the following steps
Step one, adding graphite mixed liquid into a storage box, switching on a first electrode wire, a second electrode wire, a first motor and a second motor, driving a rotary disc and a fan-shaped side toothed ring on the side face of the rotary disc to rotate by the aid of the first motor, intermittently and reversely rotating a connecting shaft at the centers of two third gears capable of being meshed with the fan-shaped side toothed ring, driving a rack to lift by the rotation of the connecting shaft, driving a piston to lift by the lifting of the rack, enabling graphene mixed liquid in the storage box to flow into the storage cylinder through a first connecting pipe by means of gravity when the piston rises, and pushing the mixed liquid in the storage cylinder to flow into a feeding pipe through a second connecting pipe when the piston descends, so that the effect of automatically adding the mixed liquid is achieved.
And step two, the mixed liquid continuously moves under the pushing pressure of a piston after entering the feeding pipe and flows out of a through hole on a fixed grinding head connected with the lower end of the feeding pipe, the fixed grinding head is in contact with a movable grinding head by utilizing the elasticity of a spring, a second motor is utilized to drive a fifth gear and a driving wheel to rotate, the fifth gear drives a fourth gear and a rotating column at the center of the fourth gear to rotate, the rotating column drives the movable grinding head to rotate, a belt is sleeved on the driving wheel and a driven wheel to enable a transmission shaft to rotate, the transmission shaft rotates to drive a rotating ring to rotate, a plurality of scraping plates arranged on the rotating ring rotate along with the rotating column, and attachments on the inner wall of the separation barrel are cleaned.
Step three, when the movable grinding head rotates, an electric field is applied to the movable grinding head and the fixed grinding head through a first electrode wire and a second electrode wire respectively, electric arcs in the external electric field continuously break and melt graphite particles in the graphite mixed solution, the crushed graphite particles are separated through centrifugal force generated by high-speed rotation of the movable grinding head, the graphite mixed solution with larger particle diameter enters the feeding pipe again through the return pipe and the recycling pump and then continuously breaks and melts through the through hole, gaseous substances with smaller particle diameter of the graphite particles broken and melted by the electric arcs flow into the graphene storage container through the condenser pipe, liquid flowing into the container through the condenser pipe is single-layer graphene liquid, viscous graphene centrifugally separated by the passive grinding head is stuck to the inner wall of the separation cylinder in the continuous circulation process of the graphite mixed solution, enters the mixed liquid in the separation cylinder under the action of the scraper plate, then enters the feeding pipe again through the return pipe and the recycling pump and then continuously breaks through the through hole, and finishing the process of directly producing the graphene by the graphite until the graphite particles in the graphite mixed solution are all converted into the single-layer graphene solution.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the automatic feeding device, the fan-shaped side gear rings rotate to enable the connecting shafts at the centers of the two third gears to rotate in the intermittent reverse direction, the connecting shafts rotate to drive the racks to lift, the racks lift to drive the pistons to lift, when the pistons lift, graphene mixed liquid in the storage box flows into the storage cylinder through the first connecting pipes by means of gravity, and when the pistons descend, the mixed liquid in the storage cylinder is pushed to flow into the feeding pipe through the second connecting pipes, so that the effect of automatically adding the mixed liquid is achieved.
2. According to the invention, the second motor is used for driving the fifth gear and the driving wheel to rotate, the fifth gear drives the fourth gear and the rotating column at the center of the fourth gear to rotate, the rotating column drives the movable grinding head to rotate, the belt is sleeved on the driving wheel and the driven wheel, so that the transmission shaft can rotate, the transmission shaft rotates to drive the rotating ring to rotate, and the plurality of scraping plates arranged on the rotating ring rotate along with the rotating ring, so that the attachments on the inner wall of the separation barrel are cleaned.
3. According to the invention, electric fields are applied to the movable grinding head and the fixed grinding head through the first electrode wire and the second electrode wire respectively, so that the electric arc in the external electric field continuously breaks and melts the graphite particles in the graphite mixed solution, the crushed graphite particles are separated through centrifugal force generated by high-speed rotation of the movable grinding head, the graphite mixed solution with larger particle diameter enters the feeding pipe again through the return pipe and the recycle pump and is continuously broken through the through hole, the gaseous substance with smaller particle diameter of the melted graphite broken by the electric arc flows into the graphene storage container through the condenser pipe until the graphite particles in the graphite mixed solution are all converted into the single-layer graphene solution, and the process of directly producing graphene by graphite is completed. The invention realizes the production of water-soluble graphene based on the tearing and grinding of the graphene layer of the rotary electrode.
The working principle and the advancement of the invention are explained as follows:
1. the structure innovation realizes mechanized automatic stripping of graphene: in a closed container, a group of graphite rod section movable grinding head and a fixed grinding head which are in close contact are utilized, a through hole is drilled on the fixed grinding head, a graphite solution is injected from the through hole in a pressurizing manner, the movable grinding head rotates at a high speed, electric fields are respectively applied to the movable grinding head and the fixed grinding head on the graphite rod section, an electric arc in the external electric field continuously breaks graphite particles in the graphite solution, the broken graphite particles are separated by centrifugal force generated by the high-speed rotation of the movable grinding head, the graphite powder solution with larger particle diameter is injected into the through hole of the fixed flake graphite rod through a circulating return pump to continue breaking, gaseous substances with smaller particle diameter broken by the electric arc flow into the container through a condenser pipe, and the liquid flowing into the container through the condenser pipe is a single-layer graphene liquid. In the continuous circulation process of the graphite solution, viscous graphene centrifugally separated by the passive grinding head is adhered to the inner wall of the sealed container, and the viscous graphene adhered to the inner wall of the sealed container is a mixture of multilayer graphite and graphene. The graphite particles in the graphite solution which are not broken enter the through holes of the graphite rod of the fixed grinding head again through the circulating pump to be broken continuously until the graphite particles in the graphite solution are converted into single-layer graphene solution and multi-layer graphene paste, and the process of directly producing graphene by graphite is completed;
2. the technological method is innovative, and the graphite particles are broken by using electron beams: the method comprises the steps that a compact layer is formed on two end faces after a moving grinding head and a fixed grinding head which are in close contact with the end faces of the moving grinding head and the fixed grinding head on the cross section of a group of graphite rods are rubbed, a graphite powder mixed solution is pumped into a central through hole of the fixed grinding head through a pressure pump and is sprayed out from the compact layers on the two end faces of the moving grinding head and the fixed grinding head, the graphite powder mixed solution has large liquid resistance and thin liquid layer thickness, graphite particles in the liquid are closest to the compact layers on the two end faces of the moving grinding head and the fixed grinding head and are excellent conductive substances, the graphite particles are discharged in an electric field connected with the moving grinding head and the fixed grinding head, the graphite particles hit by electric arc are split due to instant high temperature, and the instant high temperature can enable the contact faces at two ends of the moving grinding head and the graphite particles and the contact point of the fixed grinding head to reach or exceed the melting point of graphite 3652 ℃;
stripping graphene by using the melting point of graphite: the 3652-degree graphite which exceeds the melting point generates viscosity, because the bonding force of atoms in the graphite layer is too much than the bonding force between graphite layers, in the moving grinding head graphite rotating process, two molten graphite particles are torn along the graphite layer at the end face, the graphite particles in the passive graphite tearing process are separated from a high-temperature area, the torn graphene sheet can be curled due to the temperature reduction edge, falls off from the driven graphite grinding head ink, the graphite particles and the fixed grinding head graphite, is blown out of the friction contact surface of the moving graphite and the fixed graphite by high-pressure liquid, is mixed into the liquid, and is centrifugally thrown out by the high-speed rotating internal moving grinding head graphite. The graphite particles crushed by the electric arc are not enough to cause arc striking because of the small volume and the large contact resistance, are also blown out of the friction contact surface of the graphite of the movable grinding head and the graphite of the fixed grinding head by high-pressure liquid, are mixed into the liquid and are centrifugally thrown out by the graphite of the movable grinding head in high-speed rotation. In the process of breaking the graphite particles by electric arc, part of carbon atoms are knocked out;
3. the invention is innovated in technical principle:
1) the continuous production of graphene is realized by utilizing the principles of rotating electrodes, feeding mixed liquid, nano-arc, centrifugal classification, condensation precipitation, electronic sieve purification and the like;
2) the mixed liquid is used as a carrier, the graphite particles are graphene separation matrixes, and the flash discharge is used as a breaking energy source, so that the graphite particles, the movable grinding head and the fixed grinding head tear the graphene sheet through the movable grinding head in a melting state between the movable grinding head and the fixed grinding head at the moment of the flash discharge.
4. Correlation technique performance index of the invention
1) The particle size of the graphite powder is reduced, the specific gravity of the mixed solution is increased, the particle size of the original graphite powder is 300 meshes and 9000-10000 meshes, for example, the specific gravity of the mixed solution can be increased to at least 1.38g/cm3 from 1.12g/cm3, the particle size breaking probability of the graphite powder is improved, and the yield of graphene is increased;
2) the invention can increase the contact area of the movable grinding head and the fixed grinding head, and adjust the specific gravity of the graphite of the movable grinding head and the fixed grinding head to improve the specific gravity of the graphite so as to reduce the axial and radial runout;
3) the pressure of the pressure pump is increased, the cycle frequency is increased, the yield per unit area is improved, and the electric energy for electric arc percussion is saved;
4) the oscillation frequency can be improved by improving the electric field intensity of the movable grinding head and the fixed grinding head;
5) the efficiency of the condenser is improved, a porous capillary exhaust method is realized, and the recovery rate of single-layer graphite atoms is increased to 87%;
6) the invention can also improve the concentric annular partition plates at the bottom of the sealed barrel, increase the number of the concentric annular partition plates at the bottom of the barrel, separate the centrifugal graphene mixed solution into multi-grade graphene products, and meet the application in the industries of electrode manufacturing, wafer printing and the like.
7) The number of layers of the screen mesh of the electronic screen can be increased, the separation quality is improved, and a four-layer screen separation method is realized, wherein the first layer of screen screens are used for screening graphite particle size, the second layer of screen screens are used for screening multi-layer graphene, the third layer of screen screens are used for screening single-layer graphene, and the fourth layer of screen screens are used for screening graphite atoms;
8) according to the invention, the electronic concentration of the recovery liquid can be changed by adjusting the specific gravity of the recovery liquid, so that the graphene saturated liquid can reach 25 mg/ml.
9) The invention can realize the common operation of a plurality of groups of grinding heads in series connection, and improve the unit work efficiency and yield of graphene.
Drawings
FIG. 1 is a schematic structural diagram of the front side of the present invention,
FIG. 2 is a schematic cross-sectional view of the present invention,
figure 3 is a schematic sectional structure view of the feeding mechanism of the invention,
figure 4 is a schematic view of the scraper blade structure of the invention,
FIG. 5 is an enlarged view of the structure at A in FIG. 2,
FIG. 6 is an enlarged view of the structure at B in FIG. 2,
FIG. 7 is an enlarged view of the structure of FIG. 3 at C according to the present invention,
FIG. 8 is an enlarged view of the structure of FIG. 5 according to the present invention,
FIG. 9 is an enlarged view of the structure at E in FIG. 5 according to the present invention.
In the figure: 1. a feeding mechanism; 101. a material storage box; 102. a partition plate; 103. a first connecting pipe; 104. a base plate; 105. a first support plate; 106. a fixing frame; 107. a storage cylinder; 108. a second connecting pipe; 109. a fixed block; 110. an arc-shaped fixture block; 111. an arc-shaped column; 112. a guide bar; 113. a threaded barrel; 114. a screw; 115. a piston; 116. a rack; 117. a fixing plate; 118. rotating the rod; 119. a first gear; 120. a second support plate; 121. a rotating shaft; 122. a turntable; 123. a first outer ring gear; 124. a second gear; 125. a first motor; 126. a fan-shaped side toothed ring; 127. a third gear; 128. a connecting shaft; 2. a processing device; 201. a fixed cylinder; 202. a separation cylinder; 203. rotating the column; 204. a fourth gear; 205. a fifth gear; 206. a second motor; 207. a driving wheel; 208. a belt; 209. a driven wheel; 210. a first electrode line; 211. a limiting cylinder; 212. a movable grinding head; 213. a rotating ring; 214. a squeegee; 215. a second outer ring gear; 216. a sixth gear; 217. a drive shaft; 218. a supporting seat; 219. a sealing cover; 220. a feed pipe; 221. a cylinder; 222. a limiting rod; 223. a spring; 224. fixing a grinding head; 225. a return pipe; 226. a condenser tube; 227. a condenser tank; 228. and a second electrode line.
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.
Example (b): as shown in fig. 1 to 9, the present invention provides an electric field melting-based water-soluble graphene production apparatus, which includes a feeding mechanism 1, wherein the feeding mechanism 1 includes a storage tank 101, a bottom plate 104 is installed on one side of the storage tank 101, symmetrical storage cylinders 107 are installed on the top end of the bottom plate 104, an arc-shaped fixture block 110 is installed above the storage cylinder 107, an arc-shaped column 111 is slidably installed inside the arc-shaped fixture block 110, a threaded cylinder 113 is rotatably installed inside the arc-shaped column 111, a screw 114 is installed in the threaded cylinder 113 through an internal thread, a piston 115 is installed at the bottom end of the screw 114, a rack 116 is installed on one side of the arc-shaped fixture block 110, a first gear 119 is engaged with the rack 116, a rotating rod 118 is installed at the center of the first gear 119, a rotating disc 122 is installed between the symmetrical storage cylinders 107, a sector-shaped side gear ring 126 is installed on one side of the rotating disc 122, a symmetrical third gear 127 can be engaged with the sector-shaped side gear ring 126, a connecting shaft 128 is installed at the center of the third gear 127, and the fan-shaped side gear ring 126 rotates to drive the connecting shaft 128 to rotate back and forth.
Further, a processing device 2 is installed on one side, far away from the storage box 101, of the bottom plate 104, the processing device 2 includes a fixed cylinder 201, a separation cylinder 202 is installed on the top end of the fixed cylinder 201, a limiting cylinder 211 is installed on the bottom end inside the separation cylinder 202, a rotating column 203 is rotatably installed inside the limiting cylinder 211, a first electrode wire 210 is installed inside the rotating column 203, a movable grinding head 212 is installed on the top end of the rotating column 203, a sealing cover 219 is installed above the separation cylinder 202, a rotating ring 213 is rotatably installed between the separation cylinder 202 and the sealing cover 219, a plurality of scraping plates 214 are annularly distributed on the bottom end of the rotating ring 213, an inlet pipe 220 is installed at the center of the sealing cover 219, a fixed grinding head 224 is installed on the outer ring of the lower end of the inlet pipe 220, a second electrode wire 228 is slidably installed on the top end of the fixed grinding head 224, a plurality of springs 223 are annularly distributed on the top end of the fixed grinding head 224, a condensing pipe 226 is installed at the top end of the sealing cover 219, a return pipe 225 is installed outside the separating cylinder 202, and raw graphite is recovered and treated by using the return pipe 225.
Further, symmetrical first connecting pipes 103 are installed at the bottom end of the storage box 101, a partition plate 102 is installed at the center inside the storage box 101, the storage box 101 and the partition plate 102 form two storage spaces, one end of the symmetrical first connecting pipe 103 can be respectively communicated with the inside of the two storage spaces, the other end of the symmetrical first connecting pipe 103 can be respectively communicated with the lower ends of the symmetrical storage barrels 107 and is communicated with the inside of the storage barrels 107, so that a graphite mixed liquid inside the storage box 101 can flow into the inside of the storage barrels 107, a fixing frame 106 is installed on the outer ring of the storage barrels 107, symmetrical first supporting plates 105 are installed on the outer ring of the fixing frame 106, the symmetrical first supporting plates 105 are fixedly installed on the top end of the bottom plate 104, a second connecting pipe 108 is installed on the top end of the storage barrels 107, the other end of the second connecting pipe 108 is connected with the top end of the feeding pipe 220, and the two ends of the second connecting pipe 108 are respectively communicated with the inside of the storage barrels 107 and the inside of the feeding pipe 220, valves are arranged on the first connecting pipe 103 and the second connecting pipe 108, so that the first connecting pipe 103 and the second connecting pipe 108 can be opened and closed independently.
Further, symmetrical round holes are formed in the bottom end of the arc-shaped column 111, a guide rod 112 is arranged in the round holes in a sliding manner, the bottom end of the guide rod 112 is fixedly connected with the top end of a piston 115, the piston 115 can slide in a storage cylinder 107, symmetrical fixing blocks 109 are symmetrically arranged between first supporting plates 105, the arc-shaped fixture block 110 is arranged between the symmetrical fixing blocks 109, symmetrical fixing plates 117 are arranged on one sides of the arc-shaped fixture block 110, a rotating rod 118 is rotatably arranged on the symmetrical fixing blocks 109 and the symmetrical first supporting plates 105 through a bearing, the rotating rod 118 is rotated to drive the piston 115 to ascend and descend, a symmetrical second supporting plate 120 is arranged at the center of the top end of the bottom plate 104, a rotating shaft 121 is arranged on the symmetrical second supporting plate 120 through the rotation of the bearing, and one end of the rotating shaft 121, which is far away from the storage tank 101, is fixedly connected with the center of the rotary plate 122, first outer ring gear 123 is installed to carousel 122 outer lane, first outer ring gear 123 meshes has second gear 124, first motor 125 is installed on second backup pad 120 top, first motor 125 output and second gear 124 center department fixed connection, connecting axle 128 both ends respectively with the dwang 118 one end fixed connection of symmetry, utilize connecting axle 128 reciprocating rotation to drive dwang 118 reciprocating rotation.
Further, the lower end of the rotating column 203 is rotatably arranged at the top end inside the fixed cylinder 201 through a bearing, the lower end of the first electrode wire 210 is fixedly arranged at the lower end of the fixed cylinder 201, the top end of the first electrode wire 210 is contacted with the center of the bottom end of the movable grinding head 212, a first jack is arranged inside the rotating column 203, the upper end of the first electrode wire 210 is not contacted with the inner wall of the first jack, so that the rotating column 203 does not influence the work of the first motor wire 210 when rotating, a fourth gear 204 is arranged at the lower end of the outer ring of the rotating column 203, a second motor 206 is arranged at the top end of the inner part of the fixed cylinder 201, the output end of the second motor 206 is provided with a fifth gear 205 and a driving wheel 207, the fourth gear 204 is meshed with the fifth gear 205, the cover is equipped with belt 208 in action wheel 207 outer lane, belt 208 another pot head is equipped with from the driving wheel 209, utilizes second motor 206 to drive from driving wheel 209 and rotation post 203 to rotate.
Furthermore, a plurality of connecting blocks which are distributed annularly are arranged on the outer ring of the separating cylinder 202, the top ends of the connecting blocks which are distributed annularly are fixedly connected with the outer ring of the sealing cover 219, a second external gear ring 215 is arranged on the outer ring of the rotating ring 213, a sixth gear 216 is meshed with the second external gear ring 215, a plurality of supporting seats 218 are arranged on the outer side of the separating cylinder 202, a transmission shaft 217 is rotatably arranged on the plurality of supporting seats 218, the top end and the bottom end of the transmission shaft 217 are fixedly connected with the center of the sixth gear 216 and the center of the driven wheel 209 respectively, the outer side of the scraper 214 is contacted with the inner wall of the separating cylinder 202, so that the scraper 214 can clean attachments on the inner wall of the separating cylinder 202, the top end of the spring 223 is fixedly connected with the bottom end of the sealing cover 219, a cylinder 221 and a limiting rod 222 are arranged inside the spring 223 in a sliding manner, and the top end of the cylinder 221 is fixedly connected with the bottom end of the sealing cover 219, the bottom end of the limiting rod 222 is fixedly connected with the top end of the fixed grinding head 224, the top end of the limiting rod 222 is provided with a limiting column, the upper end of the limiting rod 222 and the limiting column can slide in the cylinder 221, the fixed grinding head 224 is provided with a through hole, the through hole is communicated with the feeding pipe 220, so that graphite mixed liquid can flow between the fixed grinding head 224 and the movable grinding head 212, the second electrode wire 228 is fixedly arranged on the sealing cover 219, two ends of the return pipe 225 are fixedly connected with the top end of the feeding pipe 220 and the lower end of the separation cylinder 202 respectively, the return pipe 225 can be communicated with the feeding pipe 220 and the inside of the separation cylinder 202, the return pipe 225 is provided with a circulating pump, the return pipe 225 is provided with a condensing tank 227, so that unprocessed graphite particles can be processed again after being mixed with the mixed liquid.
An electric field melting-based water-soluble graphene production method comprises the following steps
Firstly, adding graphite mixed liquid into the storage box 101, powering on a first electrode wire 210, a second electrode wire 228, a first motor 125 and a second motor 206, driving a turntable 122 and a fan-shaped side toothed ring 126 on the side surface of the turntable to rotate by the first motor 125, intermittently and reversely rotating a connecting shaft 128 at the center of two third gears 127 capable of being meshed with the fan-shaped side toothed ring 126, driving a rack 116 to lift by the rotation of the connecting shaft 128, driving a piston 115 to lift by the lifting of the rack 116, when the piston 115 rises, the graphene mixed liquid in the storage box 101 flows into the storage cylinder 107 through a first connecting pipe 103 by gravity, and when the piston 115 falls, the mixed liquid in the storage cylinder 107 is pushed to flow into a feeding pipe 220 through a second connecting pipe 108, so as to achieve the effect of automatically adding the mixed liquid.
Step two, after the mixed liquid enters the feeding pipe 220, the mixed liquid continuously moves under the pushing pressure of the piston 115 and flows out of a through hole on a fixed grinding head 224 connected with the lower end of the feeding pipe 220, the fixed grinding head 224 makes the fixed grinding head 224 and a movable grinding head 212 keep contact by using the elastic force of a spring 223, a second motor 206 is used for driving a fifth gear 205 and a driving wheel 207 to rotate, the fifth gear 205 rotates to drive a fourth gear 204 and a rotating column 203 at the center of the fourth gear to rotate, the rotating column 203 rotates to drive the movable grinding head 212 to rotate, a belt 208 is sleeved on the driving wheel 207 and a driven wheel 209 to enable a transmission shaft 217 to rotate, the transmission shaft 217 rotates to drive a rotating ring 213 to rotate, and a plurality of scraping plates 214 arranged on the rotating ring 213 rotate along with the rotating ring 214 to clean attachments on the inner wall of the separation cylinder 202.
Step three, when the movable grinding head 212 rotates, an electric field is applied to the movable grinding head 212 and the fixed grinding head 224 through the first electrode wire 210 and the second electrode wire 228 respectively, an electric arc in the external electric field continuously breaks and melts graphite particles in the graphite mixed solution, the crushed graphite particles are separated through centrifugal force generated by high-speed rotation of the movable grinding head 212, the graphite mixed solution with a larger particle diameter enters the feeding pipe 220 again through the return pipe 225 and the circulating pump and then is continuously broken and melted through the through hole, gaseous substances with smaller particle diameter of the graphite broken and melted by the electric arc flow into the graphene storage container through the condenser pipe 226, liquid flowing into the container through the condenser pipe 226 is single-layer graphene liquid, and during continuous circulation of the graphite mixed solution, viscous graphene centrifugally separated by the passive grinding head 212 adheres to the inner wall of the separation cylinder 202 and enters the mixed liquid in the separation cylinder 202 under the action of the scraper 214, and then enters the feeding pipe 220 again through the return pipe 225 and the recycle pump, and then continuously breaks and melts through the through holes until graphite particles in the graphite mixed solution are all converted into a single-layer graphene solution, thereby completing the process of directly producing graphene by graphite.
The working principle is as follows: when the invention is used, graphite mixed liquid is added into the storage box 101, the first electrode wire 210, the second electrode wire 228, the first motor 125 and the second motor 206 are powered on, the first motor 125 drives the second gear 124 to rotate, the second gear 124 drives the first external gear ring 123 to rotate, the first external gear ring 123 drives the rotary disc 122 and the rotary shaft 121 to rotate on the symmetrical second support plate 120, the rotary disc 122 drives the fan-shaped side gear ring 126 on the side face to rotate, the two third gears 127 capable of being meshed with the fan-shaped side gear ring 126 intermittently rotate along with the fan-shaped side gear ring 126, the rotation directions of the two third gears 127 are opposite, so that the connecting shaft 128 at the center of the two third gears 127 intermittently and reversely rotates, the connecting shaft 128 rotates to drive the rotary rod 118 to rotate, the first gear 119 on the rotary rod 118 rotates along with the rotary rod, the first gear 119 is meshed with the rack 116, and the rack 116 is driven by the intermittent and reverse rotation of the first gear 119 to move up and down, the rack 116 is lifted to drive the arc-shaped column 111 to slide in the arc-shaped fixture block 110, so that the piston 115 connected with the arc-shaped column 111 can be lifted, when the piston 115 is lifted, the graphene mixed liquid in the storage tank 101 flows into the storage cylinder 107 through the first connecting pipe 103 by using gravity, and when the piston 115 is lowered, the mixed liquid in the storage cylinder 107 is pushed to flow into the feeding pipe 220 through the second connecting pipe 108, so that the effect of automatically adding the mixed liquid is achieved;
the mixed solution enters the feeding pipe 220 and continues to move under the pushing pressure of the piston 115, and flows out from a through hole on a fixed grinding head 224 connected with the lower end of the feeding pipe 220, the fixed grinding head 224 makes the fixed grinding head 224 keep contact with a movable grinding head 212 by the elastic force of a spring 223, a second motor 206 drives a fifth gear 205 and a driving wheel 207 to rotate, the fifth gear 205 rotates to drive a fourth gear 204 to rotate, the fourth gear 204 rotates to drive a rotating column 203 to rotate, the rotating column 203 rotates to drive the movable grinding head 212 to rotate, when the movable grinding head 212 rotates, the movable grinding head 212 and the fixed grinding head 224 respectively apply an electric field through a first electrode wire 210 and a second electrode wire 228, an electric arc in the external electric field continuously breaks and melts graphite particles in the graphite mixed solution, the crushed graphite particles are separated by centrifugal force generated by high-speed rotation of the movable grinding head 212, the graphite mixed solution with larger particle diameter enters the feeding pipe 220 again through a return pipe 225 and a circulation pump and then continues to break and melt through the through hole, the electric arc breaks gaseous substances with smaller diameter of molten graphite particles and flows into the graphene storage container through the condensation pipe 226, the liquid flowing into the container through the condensation pipe 226 is single-layer graphene liquid, viscous graphene centrifugally separated by the passive grinding head 212 can be adhered to the inner wall of the separation cylinder 202 in the continuous circulation process of the graphite mixed solution, the viscous graphene adhered to the inner wall of the separation cylinder 202 is a mixture of multi-layer graphite and graphene, at the moment, a belt 208 is sleeved on the driving wheel 207 and the driven wheel 209 to enable the driving shaft 217 to rotate, the driving shaft 217 rotates to drive the sixth gear 216 to rotate, the sixth gear 216 rotates to drive the second outer gear ring 215 to rotate, the second outer gear ring 215 rotates to drive the rotating ring 213 to rotate, the plurality of scraping plates 214 arranged on the rotating ring 213 rotate along with the rotating ring 214 to clean the inner wall of the separation cylinder 202, and the mixture of the multi-layer graphite and the graphene enters the mixed solution in the separation cylinder 202, and then enters the feeding pipe 220 again through the return pipe 225 and the recycle pump, and then continuously breaks through the through hole again until the graphite particles in the graphite mixed solution are all converted into a single-layer graphene solution, thereby completing the process of directly producing graphene by graphite.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a water-soluble graphite alkene production facility based on electric field melting, includes reinforced mechanism (1), its characterized in that: the feeding mechanism (1) comprises a storage box (101), a bottom plate (104) is installed on one side of the storage box (101), symmetrical storage cylinders (107) are installed on the top end of the bottom plate (104), arc-shaped fixture blocks (110) are installed above the storage cylinders (107), arc-shaped columns (111) are arranged inside the arc-shaped fixture blocks (110) in a sliding mode, threaded cylinders (113) are arranged inside the arc-shaped columns (111) in a rotating mode, threaded screws (114) are arranged on internal threads of the threaded cylinders (113), pistons (115) are installed at the bottom ends of the threaded screws (114), racks (116) are installed on one side of the arc-shaped fixture blocks (110), first gears (119) are meshed with the racks (116), rotating rods (118) are installed at the centers of the first gears (119), rotating discs (122) are installed between the storage cylinders (107) in a symmetrical mode, sector side toothed rings (126) are installed on one side of the rotating discs (122), a symmetrical third gear (127) can be meshed on the fan-shaped side gear ring (126), and a connecting shaft (128) is mounted at the center of the symmetrical third gear (127);
one side of the bottom plate (104) far away from the storage box (101) is provided with a processing device (2), the processing device (2) comprises a fixed cylinder (201), a separating cylinder (202) is installed on the top end of the fixed cylinder (201), a limiting cylinder (211) is installed at the bottom end inside the separating cylinder (202), a rotating column (203) is arranged inside the limiting cylinder (211) in a rotating mode, a first electrode wire (210) is installed inside the rotating column (203), a movable grinding head (212) is installed at the top end of the rotating column (203), a sealing cover (219) is installed above the separating cylinder (202), a rotating ring (213) is arranged between the separating cylinder (202) and the sealing cover (219) in a rotating mode, a plurality of scraping plates (214) are annularly distributed at the bottom end of the rotating ring (213), an inlet pipe (220) is installed at the center of the sealing cover (219), and a fixed grinding head (224) is installed at the lower end of the inlet pipe (220), the top end of the fixed grinding head (224) is provided with a second electrode wire (228) in a sliding mode, a plurality of springs (223) are distributed on the top end of the fixed grinding head (224) in an annular mode, a condensing pipe (226) is installed on the top end of the sealing cover (219), and a return pipe (225) is installed on the outer side of the separating cylinder (202).
2. The electric field melting-based water-soluble graphene production equipment according to claim 1, characterized in that: first connecting pipe (103) of symmetry are installed to storage case (101) bottom, storage case (101) inside center department installs baffle (102), storage case (101) and baffle (102) form two storage spaces, and the symmetry first connecting pipe (103) one end can communicate with two storage space inside respectively, the symmetry first connecting pipe (103) other end can communicate with the storage section of thick bamboo (107) lower extreme of symmetry respectively, and communicate with storage section of thick bamboo (107) inside.
3. The electric field melting-based water-soluble graphene production equipment according to claim 2, characterized in that: fixed frame (106) are installed to storage cylinder (107) outer lane, first backup pad (105) of symmetry are installed to fixed frame (106) outer lane, the symmetry first backup pad (105) fixed mounting is on bottom plate (104) top, second connecting pipe (108) are installed on storage cylinder (107) top, the second connecting pipe (108) other end is connected with inlet pipe (220) top, and second connecting pipe (108) both ends respectively with storage cylinder (107) inside and inlet pipe (220) inside intercommunication, all be equipped with the valve on first connecting pipe (103) and second connecting pipe (108).
4. The electric field melting-based water-soluble graphene production equipment according to claim 3, characterized in that: the round hole of symmetry is seted up to arc post (111) bottom, the inside slip of round hole is equipped with guide bar (112), guide bar (112) bottom and piston (115) top fixed connection, piston (115) can be at storage cylinder (107) inside slip, the symmetry install fixed block (109) of symmetry between first backup pad (105), install between fixed block (109) of symmetry arc fixture block (110), fixed plate (117) of symmetry are installed to arc fixture block (110) one side, dwang (118) rotate through the bearing and set up on fixed block (109) of symmetry and first backup pad (105) of symmetry.
5. The electric field melting-based water-soluble graphene production equipment as claimed in claim 1 or 4, wherein: bottom plate (104) top center department installs second backup pad (120) of symmetry, the symmetry rotate through the bearing on second backup pad (120) and be equipped with axis of rotation (121), the one end and carousel (122) center fixed connection of storage case (101) are kept away from in axis of rotation (121), first outer ring gear (123) are installed to carousel (122) outer lane, first outer ring gear (123) meshing has second gear (124), first motor (125) are installed on second backup pad (120) top, fixed connection is located with second gear (124) center in first motor (125) output, connecting axle (128) both ends respectively with dwang (118) one end fixed connection of symmetry.
6. The electric field melting-based water-soluble graphene production equipment according to claim 5, characterized in that: the lower end of the rotating column (203) is rotatably arranged at the top end inside the fixed cylinder (201) through a bearing, the lower end of the first electrode wire (210) is fixedly arranged at the lower end of the fixed cylinder (201), the top end of the first electrode wire (210) is in contact with the center of the bottom end of the movable grinding head (212), a first jack is formed inside the rotating column (203), and the upper end of the first electrode wire (210) is not in contact with the inner wall of the first jack;
rotate post (203) outer lane lower extreme and install fourth gear (204), second motor (206) are installed on the inside top of solid fixed cylinder (201), fifth gear (205) and action wheel (207) are installed to second motor (206) output, fourth gear (204) and fifth gear (205) meshing, action wheel (207) outer lane cover is equipped with belt (208), belt (208) other pot head is equipped with from driving wheel (209).
7. The electric field melting-based water-soluble graphene production equipment according to claim 6, characterized in that: a plurality of connecting block that the annular distributes is installed to cylinder (202) outer lane, a plurality of that the annular distributes connecting block top and sealed lid (219) outer lane fixed connection, second external ring gear (215) are installed to rotation ring (213) outer lane, second external ring gear (215) meshing has sixth gear (216), a plurality of supporting seat (218), a plurality of are installed in the cylinder (202) outside rotation is equipped with transmission shaft (217) on supporting seat (218), transmission shaft (217) top and bottom respectively with sixth gear (216) center department with from driving wheel (209) center department fixed connection, scraper blade (214) outside and cylinder (202) inner wall contact.
8. The electric field melting-based water-soluble graphene production equipment as claimed in claim 1 or 7, wherein: spring (223) top and sealed lid (219) bottom fixed connection, spring (223) inside slip is equipped with drum (221) and gag lever post (222), drum (221) top and sealed lid (219) bottom fixed connection, gag lever post (222) bottom and fixed bistrique (224) top fixed connection, spacing post is installed on gag lever post (222) top, gag lever post (222) upper end and spacing post can be at drum (221) inside slip, the through-hole has been seted up on the fixed bistrique (224), the through-hole communicates with inlet pipe (220).
9. The electric field melting-based water-soluble graphene production equipment according to claim 1, characterized in that: second electrode line (228) fixed mounting is on sealed lid (219), back flow (225) both ends respectively with inlet pipe (220) top and separator cylinder (202) lower extreme fixed connection, and back flow (225) can with inlet pipe (220) and separator cylinder (202) inside intercommunication, be provided with the circulating pump on back flow (225), install condensing tank (227) on back flow (225).
10. A production method of water-soluble graphene based on electric field melting is characterized by comprising the following steps: the method comprises the following steps:
step one, adding graphite mixed liquor into a storage box (101), connecting a first electrode wire (210), a second electrode wire (228), a first motor (125) and a second motor (206) with a power supply, driving a turntable (122) and a fan-shaped side toothed ring (126) on the side surface of the turntable to rotate by using the first motor (125), intermittently and reversely rotating a connecting shaft (128) at the center of two third gears (127) capable of being meshed with the fan-shaped side toothed ring (126), driving a rack (116) to lift by rotating the connecting shaft (128), driving a piston (115) to lift by lifting the rack (116), when the piston (115) rises, enabling the graphene mixed liquor in the storage box (101) to flow into a storage cylinder (107) through a first connecting pipe (103) by using gravity, and when the piston (115) falls, pushing the mixed liquor in the storage cylinder (107) to flow into a feeding pipe (220) through a second connecting pipe (108), the effect of automatically adding the mixed liquid is achieved.
Step two, the mixed liquid enters the feeding pipe (220) and then continues to move under the pushing pressure of the piston (115), the cleaning agent flows out from a through hole on a fixed grinding head (224) connected with the lower end of a feeding pipe (220), the fixed grinding head (224) keeps contact with a movable grinding head (212) by utilizing the elasticity of a spring (223), a fifth gear (205) and a driving wheel (207) are driven to rotate by utilizing a second motor (206), the fifth gear (205) rotates to drive a fourth gear (204) and a rotating column (203) at the center of the fourth gear to rotate, the rotating column (203) rotates to drive the movable grinding head (212) to rotate, a belt (208) is sleeved on the driving wheel (207) and a driven wheel (209) to enable a transmission shaft (217) to rotate, the transmission shaft (217) rotates to drive a rotating ring (213) to rotate, a plurality of scraping plates (214) arranged on the rotating ring (213) rotate along with the rotating ring, and attachments on the inner wall of a separation barrel (202) are cleaned.
Step three, when the movable grinding head (212) rotates, an electric field is applied to the movable grinding head (212) and the fixed grinding head (224) through the first electrode wire (210) and the second electrode wire (228) respectively, electric arcs in the external electric field continuously break and melt graphite particles in the graphite mixed solution, the crushed graphite particles are separated through centrifugal force generated by high-speed rotation of the movable grinding head (212), the graphite mixed solution with larger particle diameter enters the feeding pipe (220) again through the return pipe (225) and the recycling pump and then is broken continuously through the through holes, gaseous substances with smaller particle diameter of the electric arc broken and melted graphite particles flow into the graphene storage container through the condensing pipe (226), liquid flowing into the container through the condensing pipe (226) is single-layer graphene liquid, and viscous graphene centrifugally separated by the movable grinding head (212) can be adhered to the inner wall of the separation cylinder (202) in the continuous circulation process of the graphite mixed solution, and the mixed solution enters the mixed solution in the separation cylinder (202) under the action of the scraper (214), and then enters the feeding pipe (220) again through the return pipe (225) and the recycle pump, and continuously breaks and melts the mixed solution through the through holes until graphite particles in the mixed solution of graphite are converted into a single-layer graphene solution, thereby completing the process of directly producing graphene by graphite.
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Cited By (1)
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