CN114538492A - Novel graphene composite material and preparation method thereof - Google Patents
Novel graphene composite material and preparation method thereof Download PDFInfo
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- CN114538492A CN114538492A CN202210161110.0A CN202210161110A CN114538492A CN 114538492 A CN114538492 A CN 114538492A CN 202210161110 A CN202210161110 A CN 202210161110A CN 114538492 A CN114538492 A CN 114538492A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/02—Oxides or hydroxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/20—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/06—Feeding or discharging arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/01—Selective separation of solid materials carried by, or dispersed in, gas currents using gravity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/06—Selective separation of solid materials carried by, or dispersed in, gas currents by impingement against sieves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/194—After-treatment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention belongs to the field of graphene preparation, and particularly relates to a novel graphene composite material and a preparation method thereof, wherein a screening device comprises a box body, a charging hole, a feed opening, a waste opening, a screen plate, a fan box, a fan and a guide plate; the box is added to the mixed powder after smashing from the charge door, the mixed powder falls from the charge door is scattered downwards, the fan inhales the fan incasement with the outside air of fan case, blow in the box from the vent, inside at the box forms horizontal wind, wind blows the mixed powder of whereabouts to the screen board of one side, large granule thing in the quality receives the influence of wind little and falls down, the mesh of screen board is passed to small powder, bulky granule is blockked by the screen board, the granule of volume and quality is discharged by the waste material mouth, discharge from the feed opening small and light with the quality, the screening work to mixed powder has been realized, the fine and close degree of mixed powder has been improved, the damage to agitating unit has been reduced, graphene composite's preparation quality has been improved.
Description
Technical Field
The invention belongs to the field of graphene preparation, and particularly relates to a novel graphene composite material and a preparation method thereof.
Background
Graphene is a two-dimensional crystal stripped from a graphite material, is composed of carbon atoms and has only one layer of atomic thickness, has excellent electrical, optical, thermal and mechanical properties, and is widely used for preparing various high-strength structural materials, catalysts, sensors and energy devices; the graphene composite material is a composite material formed by compounding graphene with metal, inorganic nonmetal, organic polymer and other materials, and has the performance which is not possessed by original components.
A chinese patent publication No. CN105271198A discloses the preparation of graphene oxide and the preparation of graphene, including a) oxidation of graphite to obtain a mixture containing graphite oxide; b) diluting the resulting mixture into a dispersion, c) allowing the resulting aqueous dispersion to stand to remove the supernatant; d) optionally repeating steps b) and c); e) diluting the residue obtained after removing the supernatant into water dispersion, and then carrying out classified filtration; f) drying and crushing the oversize material of the fine sieve; g) thermally expanding the pulverized material in an inert atmosphere; h) washing and drying the thermal expansion product; i) dispersing the dried product to form an aqueous dispersion, and then performing ultrasonic, microwave and/or high shear action to obtain graphene oxide sol; and j) drying the graphene oxide sol to obtain the graphene oxide. The method greatly shortens the preparation of the graphene oxide, and the graphene oxide has high purity. The invention also relates to the preparation of graphene, which is shortened due to shortened preparation of graphene oxide, and the prepared graphene has high purity.
In the preparation process of the graphene composite material, various materials are crushed in order to improve the mixing effect among the various materials; however, a small amount of solid particles with large volume are left in the crushed material, and if the solid particles are not removed, the solid particles with large volume collide with the inner wall of the stirring device and the stirring paddle, so that scratches are generated on the inner wall of the stirring device, and the preparation quality of the composite material is influenced.
Therefore, the invention provides a novel graphene composite material and a preparation method thereof.
Disclosure of Invention
To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.
The technical scheme adopted by the invention for solving the technical problems is as follows: the novel graphene composite material comprises the following raw materials in parts by weight:
graphene 100
Calcium oxide 1-3
Manganese 0.5-2
Chromium 1-2
1-2 parts of silicon.
A preparation method of a novel graphene composite material is suitable for the novel graphene composite material, and comprises the following steps:
s1: adding calcium oxide, manganese, chromium and silicon into a crushing device according to a certain proportion, and crushing to obtain mixed powder;
s2: adding the mixed powder into a screening device, enabling the crushed mixed powder to scatter downwards, enabling a fan to generate transverse wind to blow the falling mixed powder to a screen plate on one side, enabling large particles in mass to fall down due to small influence of the wind, enabling the small-volume powder to pass through meshes of the screen plate, enabling the large-volume particles to be blocked by the screen plate, discharging the small-volume and light-mass particles from a waste material port, and removing large-particle solids in the mixed powder;
s3: adding the screened mixed powder and graphene into a stirring device, and violently stirring by the stirring device to obtain a uniform mixed solution:
s4: introducing the mixed solution into a precipitation device, and removing supernatant to obtain a wet graphene composite material;
s5: and adding the wet graphene composite material into a drying device for drying and dehumidifying to obtain the dry graphene composite material.
Preferably, the screening device in S2 includes a box body, a charging opening, a feed opening, a waste opening, a screen plate, a fan box, a fan and a material guide plate; the box body is provided with a charging hole, a fan box is fixedly connected to the side face of the box body, a fan is installed inside the fan box, a ventilation opening is formed in the side wall, adjacent to the box body, of the fan box, the bottom of one side, close to the fan box, of the box body is communicated with a waste material opening, the bottom of one side, far away from the fan box, of the box body is communicated with a feed opening, a screen plate is installed inside the box body, the top end of the screen plate is fixedly connected with the top wall of one side, close to the feed opening, of the box body, the bottom end of the screen plate is fixedly connected with the bottom of one side, close to the waste material opening, of the box body, the height formed by meshes of the screen plate is higher than the top height of the waste material opening, the bottom of the screen plate is communicated with the waste material opening, the bottom of the meshes of the screen plate is fixedly connected with a guide plate, and the guide plate is fixedly connected with the bottom wall of the feed opening; during operation, the box is added from the charge door to the mixed powder after smashing, the mixed powder falls from the charge door, the fan inhales the fan incasement with the outside air of fan case, blow in the box from the vent, form horizontal wind in the inside of box, wind blows the mixed powder of whereabouts to the screen board of one side, large granule thing in the quality receives the influence of wind little and falls down, the mesh of screen board is passed to small powder, bulky granule is blockked by the screen board, the granule of volume and quality is discharged by the waste gate, small and the light from the feed opening of quality discharge, the screening work to mixed powder has been realized, the fine and close degree of mixed powder has been improved, the damage to agitating unit has been reduced, the preparation quality of graphite alkene combined material has been improved.
Preferably, the bottom of the screen plate, the bottom of the material guide plate and the bottom of the box body enclose a cavity, the bottom of the cavity is fixedly connected with a motor, a rotating shaft of the motor is fixedly connected with a rotating disc, an impeller plate is mounted on the outer ring of the rotating disc, a paneling is fixedly connected to the top of the cavity, a plurality of tooth sockets are formed in the inner wall of a groove in the bottom of the paneling, and the top ends of the impeller plate are in sliding fit with the inner walls of the tooth sockets; during operation, the motor drives the carousel and rotates for leaf shape board slides along the tooth's socket, makes the paneling take place vibrations, drives the sieve plate and takes place vibrations, has reduced the probability that large granule solid sends out at the sieve plate and piles up and block up the mesh, has improved the screening efficiency of sieve plate to the mixed powder.
Preferably, an installation groove is formed in the outer ring of the turntable, an impeller plate is rotatably installed inside the installation groove, sliding holes are formed in two sides of the impeller plate, a herringbone elastic sheet is slidably installed inside the sliding holes, and two ends of the herringbone elastic sheet are fixedly connected with the side wall of the installation groove; the during operation, when the lobate shaped plate slided along the tooth's socket, the lobate shaped plate received the lateral wall resistance of tooth's socket and takes place to rotate, make the both sides of the chevron shell fragment of lobate shaped plate rotation direction draw close to the centre, slide to the inside of slide opening, in the concave surface of tooth's socket is removed to the lobate shaped plate, the chevron shell fragment resets, promote the middle part of mounting groove with the lobate shaped plate, make the lobate shaped plate striking tooth's socket's lateral wall, the probability of lobate shaped plate with the tooth's socket chucking has been reduced, carousel pivoted smoothness nature has been improved, the shock stability of screen board has been improved.
Preferably, sliding chutes are formed in two sides of the sliding hole, sliding rods are slidably mounted between the sliding chutes on the two sides, the sliding rods penetrate through one end, located in the sliding hole, of the herringbone elastic sheet, and the sliding rods are fixedly connected with the herringbone elastic sheet; through the sliding fit of the sliding rod and the sliding groove, the sliding distance of the herringbone elastic sheet is limited, and the herringbone elastic sheet is prevented from falling off from the sliding hole.
Preferably, the top of the screen plate and the inside of the box body are fixedly connected with a plurality of corrugated elastic sheets, two sides of the concave surface of each corrugated elastic sheet are fixedly connected with elastic ropes, and elastic balls are fixedly connected between the elastic ropes on the two sides; during operation, after the screen plate is blown by wind generated by the fan, the wind vibrates through the corrugated elastic sheet when passing through the corrugated elastic sheet, so that the elastic balls impact the side wall of the corrugated elastic sheet, the elastic rope pull rope further improves the vibration frequency of the screen plate, and the screening efficiency of the screen plate on mixed powder is further improved.
Preferably, the inner wall of the charging opening is fixedly connected with a support, a support rod is rotatably mounted at the bottom of the support, a plurality of blades are fixedly connected to the outer ring of the bottom of the support rod, a plurality of cross rods are fixedly connected to the outer ring of the middle of the support rod, the cross rods are spirally distributed around the support rod, and the outer rings of the cross rods are in sliding fit with the inner wall of the charging opening; when the wind that the during operation fan produced passes through the blade for the blade drives the bracing piece and takes place to rotate, drives the horizontal pole and rotates, disperses the mixed powder of charge door whereabouts, and the wind that the fan of being convenient for produced blows off mixed powder, thereby has improved the screening effect to mixed powder.
Preferably, an arc-shaped sliding plate is fixedly connected to one side, close to the box body, of the inner wall of the box body, the bottom of the arc-shaped sliding plate is close to the meshes of the screen plate, the bottom of one side, close to the screen plate, of the arc-shaped sliding plate and one side, close to the arc-shaped sliding plate, of the screen plate are fixedly connected with a first magnet, and the first magnets on the two sides attract each other; during operation, after the arc slide is fallen to the large granule solid, by the leading-in waste gate of arc slide, the vibrations take place for sieve plate for distance between a magnet of both sides changes, makes the arc slide take place to shake, shakes the accumulational large granule solid of arc slide and falls, has reduced and has taken place accumulational probability on the arc slide.
The invention has the following beneficial effects:
1. according to the novel graphene composite material and the preparation method thereof, the screen plate and the fan are arranged; the mixed powder after smashing scatters downwards, the fan produces the mixed powder of horizontal wind with the whereabouts and blows to the screen cloth board of one side, large granule thing in the quality receives that the influence of wind is little and fall down, the mesh of screen cloth board is passed to small powder, bulky granule is blockked by the screen cloth board, the granule of volume and quality is discharged by the waste material mouth, discharge from the feed opening small and light in quality, the screening work to mixed powder has been realized, the fine and close degree of mixed powder has been improved, the damage to agitating unit has been reduced, graphene composite's preparation quality has been improved.
2. The novel graphene composite material and the preparation method thereof are characterized in that a motor, a turntable, a blade plate and a panel plate are arranged; the motor drive carousel rotates for the leaf shape board slides along the tooth's socket, makes the paneling take place vibrations, drives the sieve plate and takes place vibrations, has reduced the probability that large granule solid sent out to pile up and block up the mesh at the sieve plate, has improved the screening efficiency of sieve plate to the mixed powder.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of a first embodiment of the present invention;
FIG. 2 is a front view of a first embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an enlarged view of a portion of FIG. 3 at B;
FIG. 5 is an enlarged view of a portion of FIG. 4 at C;
FIG. 6 is an enlarged view of a portion of FIG. 2 at D;
FIG. 7 is a partial cross-sectional view taken at E-E of FIG. 2;
fig. 8 is an internal structure view of a fan case according to a second embodiment of the present invention;
FIG. 9 is a flow chart of a method of making the present invention;
in the figure: 1. a box body; 2. a feed inlet; 3. a feeding port; 4. a waste material port; 5. a screen plate; 6. a fan case; 7. a fan; 8. a stock guide; 9. a vent; 10. a cavity; 11. a motor; 12. a turntable; 13. a leaf plate; 14. a panel; 15. a tooth socket; 16. mounting grooves; 17. a slide hole; 18. a herringbone elastic sheet; 19. a chute; 20. a slide bar; 21. a corrugated spring plate; 22. an elastic cord; 23. an elastic ball; 24. a support; 25. a support bar; 26. a blade; 27. a cross bar; 28. an arc-shaped sliding plate; 29. a first magnet; 30. a streamer; 31. a magnet II; 32. and (4) fine hair.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example one
The novel graphene composite material provided by the embodiment of the invention comprises the following raw materials in parts by weight:
graphene 100
Calcium oxide 1-3
Manganese 0.5-2
Chromium 1-2
1-2 parts of silicon.
As shown in fig. 9, the preparation method of the novel graphene composite material is suitable for the novel graphene composite material, and the preparation method includes the following steps:
s1: adding calcium oxide, manganese, chromium and silicon into a crushing device according to a certain proportion, and crushing to obtain mixed powder;
s2: adding the mixed powder into a screening device, downwards scattering the crushed mixed powder, blowing the falling mixed powder to a screen plate 5 on one side by a fan 7 generating transverse wind, enabling large particles in mass to fall down due to small influence of the wind, enabling the small-volume powder to pass through meshes of the screen plate 5, blocking the large particles by the screen plate 5, discharging the small-volume and light-mass particles from a waste material port 4, and discharging the small-volume and light-mass particles from a discharging port 3 to remove large-particle solids in the mixed powder;
s3: adding the screened mixed powder and graphene into a stirring device, and violently stirring by the stirring device to obtain a uniform mixed solution:
s4: introducing the mixed solution into a precipitation device, and removing supernatant to obtain a wet graphene composite material;
s5: and adding the wet graphene composite material into a drying device for drying and dehumidifying to obtain the dry graphene composite material.
As shown in fig. 1 to 2, the screening device described in S2 includes a box body 1, a charging port 2, a discharging port 3, a waste port 4, a screen plate 5, a fan case 6, a fan 7, and a guide plate 8; the box body 1 is provided with a charging opening 2, the side surface of the box body 1 is fixedly connected with a fan box 6, a fan 7 is arranged in the fan box 6, the side wall of the fan box 6 adjacent to the box body 1 is provided with a vent 9, the bottom of one side of the box body 1 close to the fan box 6 is communicated with a waste material port 4, the bottom of one side of the box body 1, which is far away from the fan box 6, is communicated with a feed opening 3, a screen plate 5 is arranged in the box body 1, the top end of the screen plate 5 is fixedly connected with the top wall of the side of the box body 1 close to the feed opening 3, the bottom end of the screen plate 5 is fixedly connected with the bottom of the side of the box body 1 close to the waste opening 4, the mesh opening height of the screen plate 5 is higher than the top height of the waste port 4, the bottom of the screen plate 5 is communicated with the waste port 4, the bottom of the mesh of the screen plate 5 is fixedly connected with a material guide plate 8, and the material guide plate 8 is fixedly connected with the bottom wall of the feed opening 3; during operation, the mixed powder after smashing is added into box 1 from charge door 2 in, the mixed powder falls from charge door 2 is scattered downwards, fan 7 inhales the outside air of fan box 6 in fan box 6, blow in box 1 from vent 9, form horizontal wind in the inside of box 1, wind blows the mixed powder of whereabouts to the screen board 5 of one side, the large granule thing in the quality receives little and fall down of the influence of wind, small powder passes the mesh of screen board 5, big granule is blockked by screen board 5, the granule of volume and quality is discharged by waste material mouth 4, small and light from feed opening 3 discharge of quality, the screening work to mixed powder has been realized, the fine density degree of mixed powder has been improved, the damage to agitating unit has been reduced, the preparation quality of graphite alkene combined material has been improved.
As shown in fig. 2 to 3, a cavity 10 is defined by the bottom of the screen plate 5, the bottom of the material guide plate 8 and the bottom of the box body 1, a motor 11 is fixedly connected to the bottom of the cavity 10, a rotating shaft of the motor 11 is fixedly connected to a rotating disc 12, an outer ring of the rotating disc 12 is provided with a blade plate 13, a paneling 14 is fixedly connected to the top of the cavity 10, a plurality of tooth sockets 15 are formed on the inner wall of a groove at the bottom of the paneling 14, and the top ends of the blade plates 13 are in sliding fit with the inner walls of the tooth sockets 15; during operation, motor 11 drives carousel 12 and rotates for lobate shaped plate 13 slides along tooth's socket 15, makes paneling 14 take place to shake, drives sieve plate 5 and takes place to shake, has reduced the probability that large granule solid sends out at sieve plate 5 and piles up and block up the mesh, has improved sieve plate 5 to the screening efficiency of mixed powder.
As shown in fig. 3 to 4, an outer ring of the turntable 12 is provided with an installation groove 16, an inner portion of the installation groove 16 is rotatably provided with a blade plate 13, two sides of the blade plate 13 are provided with sliding holes 17, a herringbone spring plate 18 is slidably arranged in the sliding holes 17, and two ends of the herringbone spring plate 18 are fixedly connected with a side wall of the installation groove 16; when the sieve plate device works, when the blade plate 13 slides along the tooth grooves 15, the blade plate 13 rotates due to the resistance of the side walls of the tooth grooves 15, the two sides of the herringbone elastic sheet 18 in the rotating direction of the blade plate 13 are close to the middle and slide towards the inside of the sliding hole 17, when the blade plate 13 moves into the concave surface of the tooth grooves 15, the herringbone elastic sheet 18 resets and pushes the blade plate 13 to the middle of the mounting groove 16, the blade plate 13 impacts the side walls of the tooth grooves 15, the probability of clamping the blade plate 13 and the tooth grooves 15 is reduced, the rotating fluency of the rotary table 12 is improved, and the vibration stability of the sieve plate 5 is improved.
As shown in fig. 4 to 5, sliding grooves 19 are formed on both sides of the sliding hole 17, a sliding rod 20 is slidably mounted between the sliding grooves 19 on both sides, the sliding rod 20 penetrates through one end of the herringbone elastic sheet 18 located in the sliding hole 17, and the sliding rod 20 is fixedly connected with the herringbone elastic sheet 18; the sliding distance of the herringbone elastic sheet 18 is limited through the sliding fit of the sliding rod 20 and the sliding groove 19, and the herringbone elastic sheet 18 is prevented from falling off from the sliding hole 17.
As shown in fig. 2 and 6, the top of the screen plate 5 is fixedly connected with a plurality of corrugated elastic sheets 21 inside the box body 1, two sides of the concave surface of each corrugated elastic sheet 21 are fixedly connected with elastic ropes 22, and elastic balls 23 are fixedly connected between the elastic ropes 22 at two sides; during operation, the wind that fan 7 produced blows behind sieve otter board 5, and wind is during through ripple shell fragment 21 department for ripple shell fragment 21 produces vibrations, makes the lateral wall of 23 striking ripple shell fragments of elasticity ball 21, and elasticity rope 22 stay cords has further improved the frequency of vibration of sieve otter board 5, thereby has further improved the screening efficiency of sieve otter board 5 to the mixed powder.
As shown in fig. 2, a support 24 is fixedly connected to an inner wall of the charging port 2, a support rod 25 is rotatably mounted at the bottom of the support 24, a plurality of blades 26 are fixedly connected to an outer ring of the bottom of the support rod 25, a plurality of cross rods 27 are fixedly connected to an outer ring of the middle of the support rod 25, the plurality of cross rods 27 are spirally distributed around the support rod 25, and outer rings of the plurality of cross rods 27 are in sliding fit with the inner wall of the charging port 2; during operation, the wind that fan 7 produced when blade 26 for blade 26 drives bracing piece 25 and takes place to rotate, drives horizontal pole 27 and rotates, disperses the mixed powder of charge door 2 whereabouts, and the wind that the fan 7 of being convenient for produced blows off mixed powder, thereby has improved the screening effect to mixed powder.
An arc-shaped sliding plate 28 is fixedly connected to one side, close to the box body 1, of the inner wall of the box body 1, the bottom of the arc-shaped sliding plate 28 is close to the meshes of the screen plate 5, the bottom of one side, close to the screen plate 5, of the arc-shaped sliding plate 28 and one side, close to the arc-shaped sliding plate 28, of the screen plate 5 are fixedly connected with a first magnet 29, and the first magnets 29 on the two sides attract each other; during operation, after the arc slide 28 was fallen to the large granule solid, by leading-in waste gate 4 of arc slide 28, screen plate 5 took place vibrations for the distance between a magnet 29 of both sides changes, makes arc slide 28 take place vibrations, shakes the accumulational large granule solid of arc slide 28 and falls, has reduced and has taken place accumulational probability on the arc slide 28.
Example two
As shown in fig. 8, a first comparative example, in which another embodiment of the present invention is: the top of the ventilation opening 9 is fixedly connected with a ribbon 30, the bottom end of the ribbon 30 and the bottom surface of the ventilation opening 9 are fixedly connected with a second magnet 31, the second magnets 31 on the two sides attract each other, one side of the ribbon 30 close to the fan box 6 is fixedly connected with a plurality of furs 32, the furs 32 are in sliding fit with fan blades of the fan 7, and the suction force between the second magnets 31 on the two sides is smaller than the wind power of the fan 7; during operation, when fan 7 did not start, the actuation of No. two magnet 31 of both sides for nap 32 on the ribbon 30 contacts the flabellum of fan 7, when fan 7 just started, the flabellum of fan 7 and nap 32 contact slip, sweep the dust on flabellum surface down, fan 7 starts the back completely, wind-force increases, the separation of No. two magnet 31 of actuation, make ribbon 30 float, make wind-force get into in the box 1, realized the deashing work to fan 7, the purity degree of graphite alkene combined material has been improved.
When in work: the crushed mixed powder is added into the box body 1 from the feed opening 2, the mixed powder is scattered downwards from the feed opening 2, the fan 7 sucks the air outside the fan box 6 into the fan box 6 and blows the air into the box body 1 from the vent opening 9, transverse air is formed inside the box body 1, and when the air passes through the blades 26, the blades 26 drive the supporting rod 25 to rotate to drive the cross rod 27 to rotate, so that the mixed powder falling from the feed opening 2 is scattered; the falling mixed powder is blown to the screen plate 5 at one side by wind, large particles in the mass fall down due to small influence of the wind, the small-volume powder passes through meshes of the screen plate 5, large-volume particles are blocked by the screen plate 5, the particles with the volume and the mass are discharged from the waste material port 4, and the small-volume and light-mass particles are discharged from the feed opening 3;
the motor 11 drives the rotating disc 12 to rotate, so that the blade-shaped plate 13 slides along the tooth slot 15, when the blade-shaped plate 13 slides along the tooth slot 15, the blade-shaped plate 13 rotates under the resistance of the side wall of the tooth slot 15, so that the two sides of the herringbone elastic sheet 18 in the rotating direction of the leaf plate 13 are close to the middle and slide towards the inside of the sliding hole 17, when the blade plate 13 moves into the concave surface of the tooth slot 15, the herringbone elastic sheet 18 is reset, the blade plate 13 is pushed to the middle part of the mounting groove 16, so that the vane plates 13 strike the side walls of the gullets 15, the panels 14 vibrate, the screen plates 5 are driven to vibrate, meanwhile, after the wind passes through the screen plate 5, the corrugated shrapnel 21 vibrates when the wind passes through the corrugated shrapnel 21, the elastic balls 23 impact the side wall of the corrugated elastic sheet 21, and the elastic ropes 22 pull the ropes, so that the vibration frequency of the screen plate 5 is further improved, and the probability that large-particle solids are accumulated on the screen plate 5 and block meshes is reduced;
the vibration of the screen plate 5 changes the distance between the first magnets 29 on the two sides, so that the arc-shaped sliding plate 28 vibrates, large-particle solid matters accumulated on the arc-shaped sliding plate 28 are vibrated off, and the probability of accumulation on the arc-shaped sliding plate 28 is reduced;
the screening work of the mixed powder is realized, the fineness of the mixed powder is improved, the damage to the stirring device is reduced, and the preparation quality of the graphene composite material is improved.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A novel graphene composite material is characterized in that: the novel graphene composite material is prepared from the following raw materials in parts by weight:
graphene 100
Calcium oxide 1-3
Manganese 0.5-2
Chromium 1-2
1-2 parts of silicon.
2. A preparation method of a novel graphene composite material is characterized by comprising the following steps: the method is suitable for preparing the novel graphene composite material as claimed in claim 1, and the preparation method comprises the following steps:
s1: adding calcium oxide, manganese, chromium and silicon into a crushing device according to a certain proportion, and crushing to obtain mixed powder;
s2: adding the mixed powder into a screening device, blowing the falling mixed powder to a screen plate (5) on one side by a fan (7) generating transverse wind, wherein large particles in mass fall down under the influence of the wind, the small-volume powder passes through meshes of the screen plate (5), the large-volume particles are blocked by the screen plate (5), the small-volume and light-mass particles are discharged from a waste material port (4), and are discharged from a discharging port (3), so that large particle solids in the mixed powder are removed;
s3: adding the screened mixed powder and graphene into a stirring device, and violently stirring by the stirring device to obtain a uniform mixed solution:
s4: introducing the mixed solution into a precipitation device, and removing supernatant to obtain a wet graphene composite material;
s5: and adding the wet graphene composite material into a drying device for drying and dehumidifying to obtain the dry graphene composite material.
3. The preparation method of the novel graphene composite material according to claim 2, characterized in that: the screening device in the S2 comprises a box body (1), a feeding port (2), a discharging port (3), a waste port (4), a screen plate (5), a fan box (6), a fan (7) and a material guide plate (8); the box body (1) is provided with a feed inlet (2), a fan box (6) is fixedly connected to the side face of the box body (1), a fan (7) is arranged inside the fan box (6), a vent (9) is formed in the side wall of the fan box (6) adjacent to the box body (1), the bottom of one side, close to the fan box (6), of the box body (1) is communicated with a waste material port (4), the bottom of one side, far away from the fan box (6), of the box body (1) is communicated with a feed opening (3), a screen plate (5) is arranged inside the box body (1), the top end of the screen plate (5) is fixedly connected with the top wall of one side, close to the feed opening (3), of the box body (1), the bottom end of the screen plate (5) is fixedly connected with the bottom of one side, close to the waste material port (4), and the height, which is higher than the top of the waste material port (4), is formed in meshes of the screen plate (5), the bottom of sieve plate (5) communicates waste gate (4), the mesh bottom rigid coupling stock guide (8) of sieve plate (5), the diapire rigid coupling of stock guide (8) and feed opening (3).
4. The preparation method of the novel graphene composite material according to claim 3, characterized in that: the bottom of sieve plate (5), the bottom of stock guide (8) and the bottom of box (1) enclose into cavity (10), bottom rigid coupling motor (11) of cavity (10), pivot rigid coupling carousel (12) of motor (11), lobate plate (13) are installed to the outer lane of carousel (12), the top rigid coupling paneling (14) of cavity (10), a plurality of tooth's socket (15) are seted up to the bottom recess inner wall of paneling (14), the top of lobate plate (13) and the inner wall sliding fit of tooth's socket (15).
5. The preparation method of the novel graphene composite material according to claim 4, characterized in that: an installation groove (16) is formed in the outer ring of the rotary table (12), the blade plates (13) are installed inside the installation groove (16) in a rotating mode, sliding holes (17) are formed in the two sides of each blade plate (13), herringbone elastic pieces (18) are installed inside the sliding holes (17) in a sliding mode, and the two ends of each herringbone elastic piece (18) are fixedly connected with the side wall of the installation groove (16).
6. The preparation method of the novel graphene composite material according to claim 5, characterized in that: sliding grooves (19) are formed in the two sides of the sliding hole (17), a sliding rod (20) is installed between the sliding grooves (19) in the two sides in a sliding mode, the sliding rod (20) penetrates through one end, located in the sliding hole (17), of the herringbone elastic sheet (18), and the sliding rod (20) is fixedly connected with the herringbone elastic sheet (18).
7. The preparation method of the novel graphene composite material according to claim 3, characterized in that: the top of the screen plate (5) is fixedly connected with a plurality of corrugated elastic sheets (21) in the box body (1), elastic ropes (22) are fixedly connected to two sides of the concave surface of each corrugated elastic sheet (21), and elastic balls (23) are fixedly connected between the elastic ropes (22) on two sides.
8. The preparation method of the novel graphene composite material according to claim 3, characterized in that: inner wall rigid coupling support (24) of charge door (2), erection bracing pole (25) is rotated to the bottom of support (24), a plurality of blades (26) of bottom outer lane rigid coupling of bracing piece (25), a plurality of horizontal poles (27) of middle part outer lane rigid coupling of bracing piece (25), it is a plurality of horizontal pole (27) are the heliciform around bracing piece (25) and distribute, a plurality of the outer lane of horizontal pole (27) and the inner wall sliding fit of charge door (2).
9. The preparation method of the novel graphene composite material according to claim 3, characterized in that: the inner wall of box (1) is close to one side rigid coupling arc slide (28) of box (1), the bottom of arc slide (28) is close to the mesh department of sieve plate (5), one side bottom that arc slide (28) are close to sieve plate (5) and sieve plate (5) are close to equal rigid coupling magnet (29) in one side of arc slide (28), both sides between magnet (29).
10. The preparation method of the novel graphene composite material according to claim 3, characterized in that: the top rigid coupling ribbon (30) of vent (9), magnet (31) No. two of the bottom of ribbon (30) and the equal rigid coupling in bottom surface of vent (9), both sides between magnet (31) attract each other, ribbon (30) are close to a plurality of nap (32) of one side rigid coupling of fan case (6), the flabellum sliding fit of nap (32) and fan (7), both sides suction between magnet (31) is less than the wind-force of fan (7).
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