CN206970225U - A kind of oscillatory type high pressure water jet machine for being used to prepare graphene - Google Patents
A kind of oscillatory type high pressure water jet machine for being used to prepare graphene Download PDFInfo
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- CN206970225U CN206970225U CN201720444976.7U CN201720444976U CN206970225U CN 206970225 U CN206970225 U CN 206970225U CN 201720444976 U CN201720444976 U CN 201720444976U CN 206970225 U CN206970225 U CN 206970225U
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Abstract
The utility model belongs to technical field of graphene preparation, there is provided a kind of oscillatory type high pressure water jet machine for being used to prepare graphene, is mainly made up of electric and magnetic oscillation disperser, high-pressure pump, fluid ejecting head, reducing mechanism, sorting unit, collector；The high-pressure pump is the high-pressure plunger pump with two check valves, and its feedwater uses small-size centrifugal pump；Each set is no less than a pressure gauge and stop valve before and after the electric and magnetic oscillation disperser, and sets air bleeding valve at top；The sorting unit uses cyclone separator, sand discharge funnel or traditional shaker；Curve form, radius, angle and the position of the reducing mechanism are adjustable, to form the spoon type storehouse of different shape and size.The utility model utilizes the cleavage crushing performance of high pressure water jet machine pulverizer, and utilizes dispersant and electric and magnetic oscillation disperser, effectively solves graphite and shipwreck with dispersed, the defects of causing spray nozzle clogging, and graphene production efficiency is greatly improved.
Description
Technical field
The mechanical preparation field of graphene is the utility model is related to, more particularly, to a kind of vibration for being used to prepare graphene
Formula high pressure water jet machine.
Background technology
Since 2004 graphenes are found, the extensive pass of whole world scientific researcher has been caused by its unique property
Note.The graphene being originally found is by Nobel Prize in physics winner two scientist adhesive tapes of Novoselov and Geim
Peel off what graphite was prepared repeatedly.Graphene is that have alveolate texture by carbon atom with sp2 hydridization arrangement arrangement form
Two dimensional crystal material, be form graphite material elementary cell, theoretic throat is about 0.35nm, is found in the world at present
Most thin two dimensional crystal material.This special two-dimentional monoatomic layer crystal structure makes graphene show excellent physical chemistry
Performance, it is most hard nano material, while there is excellent electron transport ability and high thermal conductivity in the world at present.It is positive because
There is so excellent performance for graphene, make it at composite, energy storage material, crystalline material, catalyst material, sewage
The fields such as reason material are respectively provided with the prospect of being widely applied.
Since graphene is found, the preparation method of graphene is always the focus of people's research.The preparation of graphene
Method mainly has mechanical stripping method, oxidation-reduction method, chemical vapour deposition technique, high-temperature cracking method, intercalation stripping method, liquid phase to peel off
Method etc., wherein oxidation-reduction method are the main methods that studies in China prepares graphene, and foreign countries are main using chemical vapour deposition technique
Research direction.In several main preparation methods of graphene, oxidation-reduction method has advantage efficiently, inexpensive, can be a large amount of
The derivative of graphene is prepared, but in this method preparation process, environmental pollution is caused using substantial amounts of strong oxidizer and reducing agent,
And the crystal structure of graphene is damaged, defect is formed, influences the combination property of graphene；The master of chemical vapour deposition technique
It is to prepare the graphene of large area to want advantage, but its costly, complex process, investment it is huge, scale can't be realized at present
Metaplasia is produced；High-temperature cracking method is using single crystalline substrate growth single crystal graphene, at present mainly based on SiC crystal, but by substrate
The influence of material, it is difficult to obtain the grapheme material of high quality, large area, and the surface nature of the grapheme material obtained is served as a contrast
Bottom material has a great influence, and limits its application field.
By contrast, mechanical stripping method is a kind of green, efficient preparation method, is such as cut by applying to graphite material
The method that graphene is stripped out by the mechanical forces such as shear force, frictional force, tensile force from graphite material.Test result indicates that stone
Between layer of ink layer connected by Van der Waals force, therefore graphite flake layer is easy to peel off in the presence of mechanical force, have into
The advantages such as this is low, easy to operate, pollution-free, investment is small, it is possible to achieve scale, low cost, environmental protection prepare graphene, turn into graphite
Mainstream technology prepared by alkene, the method currently used for graphene mechanical stripping includes medium milling stripping, ultrasound is peeled off, water jet
Stripping, homogenizer stripping and airslide disintegrating mill stripping etc. can prepare the graphene of high quality on a large scale.
But also there is many defects in the mechanical stripping equipment to match.Traditional crushing technology, such as ball mill, shake
Dynamic gentle grinding machine of grinding machine etc., high energy consumption and crush efficiency is low, and also obtained grade is big, distribution is wide, for the stone of Nano grade
Black alkene, its charge stripping efficiency is relatively low, can not much meet industry development blood medicine.Thus new wet type high pressurewater cleaning technology
Arise at the historic moment, as a kind of high-efficiency appliance for obtaining Nano grade, it acts on the water jet of height cumulative in a certain way for it
On pulverized material, and producing pressure transient in the crack of material and cleavage surface crushes material.Due to high pressure
Generally there is water jet high speed and highly energy to assemble, and to pulverized material and the load time is short and the energy of load is close
Degree is high, can generally form cavitation in crushing process in addition, thus the grinding mode of material is mainly that cleavage crushes, non-
Often it is suitable for peeling off graphene.But when specifically used, with shipwreck with dispersed, nozzle easily blocks graphite so that
Production efficiency substantially reduces.
The content of the invention
The purpose of this utility model is to provide a kind of oscillatory type high pressure water jet machine for being used to prepare graphene, utilizes high pressure
The cleavage crushing performance of waterjet machine, and dispersant and electric and magnetic oscillation disperser are utilized, effectively solve graphite with shipwreck with uniform
It is scattered, the defects of causing spray nozzle clogging, graphene production efficiency is greatly improved.
The equipment scheme that the utility model is related to is as follows：
A kind of oscillatory type high pressure water jet machine for being used to prepare graphene, it is characterised in that by making graphite with water scattered
It is effectively scattered in electric and magnetic oscillation disperser under agent effect, it is well mixed, then passes through fluid ejecting head, accelerating tube, into powder
Broken case, generation cleavage crushes under the comprehensive function of the effects such as fricting shearing, impact, turbulent fluctuation and cavitation, finally through undue
Screening device and collector, the graphene product peeled off, specific equipment are as follows：
Oscillatory type high pressure water jet machine of the present utility model mainly by high-pressure pump, high pressure storage tank, electric and magnetic oscillation disperser,
Pressurizer tank, accelerating tube, crush box, sorting unit, recover, choke valve, air bleeding valve, fluid ejecting head, collector, discharging opening group
Into；The high-pressure pump, electric and magnetic oscillation disperser, pressurizer tank, accelerating tube, crush box, sorting unit, recover are sequentially connected with；Institute
It is the high-pressure plunger pump with two check valves to state high-pressure pump, and its feedwater uses small-size centrifugal pump；The electric and magnetic oscillation disperser
Front and rear each set is no less than a pressure gauge and stop valve, and sets air bleeding valve at top；The sorting unit uses cyclonic separation
Device, sand discharge funnel or traditional shaker；Curve form, radius, angle and the position of the crush box are adjustable, to be formed not
The spoon type storehouse of similar shape and size.
Oscillatory type high pressure water jet machine of the present utility model, the concrete operations technology for preparing graphene are as follows：
（1）Graphite is mixed before being carried out with water and vibration dispersion：A certain amount of graphite is mixed with water, and added a certain amount of
Dispersant, regulation mixed liquor pH value to alkalescent, material is added in vibration dispersion device, and start high-pressure plunger pump, carry out electricity
Magnetic vibration.
The dispersant is anionic, nonionic or high molecular surfactant；
The mixed proportion of the graphite and water is 1:5~1:15（In mass ratio）；
The dispersant concentration is 5 ~ 10%（By mass fraction）, dosage is the 0.03 ~ 0.07% of mixed liquor quality；
The pH value of the mixed liquor is 8 ~ 10；
The time of vibration of the electric and magnetic oscillation is 5 ~ 15min；
The operating pressure of the high-pressure plunger pump is 10 ~ 18MPa, and outlet pressure is not less than 15MPa；
（2）Motion of the mixed liquor in fluid ejecting head and accelerating tube：After starting fluid ejecting head, graphite starts shipment with water one
In dynamic process, graphite produces fricting shearing, and the fricting shearing effect enhancing between graphite and water with duct wall, reaches certain
The crushing of degree；
The effluxvelocity of the fluid ejecting head is not less than 150m/s；
A diameter of 5 ~ 6mm of the High-Pressure Water of the fluid ejecting head；
（3）The collision of mixed liquor and target body and the crushing of crush box：With target body strong collision occurs for mixed liquor, produces punching
Break up broken；Rotation of the graphite in spoon type storehouse, the both turbulent fluctuation by water body and cavitation, and the grinding by abrasive media with
Impact, produce strong comprehensive crushing；
Mill ball in the crush box is metal ball or Ceramic Balls, and its particle diameter is 3 ~ 4 times of graphite particle diameter；
The charging rate of the crush box is 0.5 ~ 1kg/min；
（4）Sorting and collection：Using sorting unit separation water and crushed material, product is collected, you can obtain satisfactory
Graphene.
The utility model provides a kind of oscillatory type high pressure water jet machine for being used to prepare graphene, with prior art phase
Than, its protrude the characteristics of and excellent effect be：
1st, the utility model causes graphite flake layer to be peeled off under mechanical force, have cost it is low, it is easy to operate, pollution-free,
The advantage such as small is invested, contributes to scale, low cost and environmental protection to prepare graphene；
2nd, for the utility model during graphene is prepared, energy consumption is low, and crush efficiency is high, and products obtained therefrom grade is small, distribution
It is narrow, it is the high-efficiency appliance for obtaining Nano grade；
3rd, the utility model using high pressure water jet machine generally there is high speed and highly energy to assemble, to pulverized
The material and load time is short and the energy density of load is high, can generally form cavitation, cleavage in crushing process in addition
Fragmentation is extremely beneficial to peeling off graphene；
4th, the utility model efficiently solves creatively by electronic vibration disperser and high pressure water jet machine integrated application
Graphite and shipwreck with it is dispersed the problem of so that equipment nozzle is not easily blocked, and greatly improves production efficiency.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram for being used to prepare the oscillatory type high pressure water jet machine of graphene of the utility model.
Wherein：1- high-pressure pumps；2- high pressure storage tanks；3- electric and magnetic oscillation dispersers；4- pressurizer tanks；5- accelerating tubes；6- is crushed
Case（Spoon shape storehouse）；7- sorting units；8- recovers；9- choke valves；10- air bleeding valves；11- fluid ejecting heads；12- collectors；13-
Discharging opening；P- pressure display units.
Embodiment
Below in conjunction with accompanying drawing, utility model is described in further detail.Implement the utility model, specially carried except following
And content outside, be this area universal knowledege and common knowledge.
Embodiment 1
As shown in Fig. 1, it is used to prepare the oscillatory type high pressure water jet machine of graphene the utility model proposes a kind of, its
Mainly it is made up of electric and magnetic oscillation disperser, high-pressure pump, fluid ejecting head, crush box, sorting unit, collector；The high-pressure pump
For the high-pressure plunger pump with two check valves, its feedwater uses small-size centrifugal pump；Respectively set before and after the electric and magnetic oscillation disperser
Put and be no less than a pressure gauge and stop valve, and air bleeding valve is set at top；The sorting unit is leaked using cyclone separator, sand discharge
Bucket or traditional shaker；Curve form, radius, angle and the position of the crush box are adjustable, with formed different shape and
The spoon type storehouse of size.
Embodiment 2
The oscillatory type high pressure water jet machine invented using the utility model, it is mainly by electric and magnetic oscillation disperser, high pressure
The pump housing, fluid ejecting head, crush box, sorting unit, collector composition.In use, first, 100kg graphite and 750kg water are mixed
Close, and the dodecyl sulphur sodium that the mass concentration for adding 45kg is 10%, regulation mixed liquor pH value to 9, material is added into vibration point
Dissipate in device, open high-pressure pump, setting operating pressure is 12MPa, and electric and magnetic oscillation 10min is carried out to mixed liquor.Then, fluid is started
Injector head, it is 160m/s, a diameter of 6mm of High-Pressure Water to control effluxvelocity, during graphite moves together with water, graphite
Fricting shearing, and the fricting shearing effect enhancing between graphite and water are produced with duct wall, reaches a certain degree of crushing；So
Afterwards, mixed liquor enters accelerating tube, and strong collision occurs with target body, produces impact grinding；Enter crush box immediately, use particle diameter for
The metal ball that 4 times of graphite diameter is ground, rotation of the graphite in spoon type storehouse, both the turbulent fluctuation by water body and cavitation,
Again by the grinding and impact of abrasive media, strong comprehensive crushing is produced, it is 0.5kg/min to control charging rate；Finally, adopt
With sand discharge funnel separation water and crushed material, product is collected, you can obtain satisfactory graphene.
Embodiment 3
The oscillatory type high pressure water jet machine invented using the utility model, it is mainly by electric and magnetic oscillation disperser, high pressure
The pump housing, fluid ejecting head, crush box, sorting unit, collector composition.In use, 100kg graphite is mixed with 1000kg water,
And the DTAB that the mass concentration for adding 55kg is 10%, regulation mixed liquor pH value add material to 10
In vibration dispersion device, high-pressure pump is opened, setting operating pressure is 14MPa, and electric and magnetic oscillation 5min is carried out to mixed liquor.Then, open
Dynamic fluid ejecting head, it is 170m/s to control effluxvelocity, a diameter of 5.5mm of High-Pressure Water, the mistake that graphite moves together with water
Cheng Zhong, graphite produce fricting shearing, and the fricting shearing effect enhancing between graphite and water with duct wall, reach a certain degree of
Crush；Then, mixed liquor enters accelerating tube, and strong collision occurs with target body, produces impact grinding；Enter crush box immediately, adopt
Be ground with the metal ball that particle diameter is 3.5 times of graphite diameter, rotation of the graphite in spoon type storehouse, both by water body turbulent fluctuation and
Cavitation, and by the grinding and impact of abrasive media, strong comprehensive crushing is produced, it is 0.75kg/ to control charging rate
min；Finally, using vibratory sieve separation water and crushed material, product is collected, you can obtain satisfactory graphene.
Embodiment 4
The oscillatory type high pressure water jet machine invented using the utility model, it is mainly by electric and magnetic oscillation disperser, high pressure
The pump housing, fluid ejecting head, crush box, sorting unit, collector composition.In use, first, by 100kg graphite and 1250kg water
Material is added vibration dispersion by mixing, and the polyacrylic acid that the mass concentration for adding 70kg is 10%, regulation mixed liquor pH value to 8
In device, high-pressure pump is opened, setting operating pressure is 16MPa, and electric and magnetic oscillation 10min is carried out to mixed liquor.Then, fluid spray is started
Penetrate head, it is 180m/s, a diameter of 5mm of High-Pressure Water to control effluxvelocity, during graphite moves together with water, graphite with
Duct wall produces fricting shearing, and the fricting shearing effect enhancing between graphite and water, reaches a certain degree of crushing；Then,
Mixed liquor enters accelerating tube, and strong collision occurs with target body, produces impact grinding；Enter crush box immediately, use particle diameter as stone
The Ceramic Balls of black 3 times of diameter are ground, rotation of the graphite in spoon type storehouse, both the turbulent fluctuation by water body and cavitation, again
By the grinding and impact of abrasive media, strong comprehensive crushing is produced, it is 1kg/min to control charging rate；Finally, using rotation
Stream separator separation water and crushed material, collect product, you can obtain satisfactory graphene.
Claims (1)
- A kind of 1. oscillatory type high pressure water jet machine for being used to prepare graphene, it is characterised in that：Mainly by high-pressure pump, high pressure storing Tank, electric and magnetic oscillation disperser, pressurizer tank, accelerating tube, crush box, sorting unit, recover, choke valve, air bleeding valve, fluid injection Head, collector, discharging opening composition；The high-pressure pump, electric and magnetic oscillation disperser, pressurizer tank, accelerating tube, crush box, sorting unit, Recover is sequentially connected with；The high-pressure pump is the high-pressure plunger pump with two check valves, and its feedwater uses small-size centrifugal pump；Institute Each set is no less than a pressure gauge and stop valve before and after stating electric and magnetic oscillation disperser, and sets air bleeding valve at top；The sorting Device uses cyclone separator, sand discharge funnel or traditional shaker；Curve form, radius, angle and the position of the crush box It is adjustable, to form the spoon type storehouse of different shape and size.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720444976.7U CN206970225U (en) | 2017-04-26 | 2017-04-26 | A kind of oscillatory type high pressure water jet machine for being used to prepare graphene |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720444976.7U CN206970225U (en) | 2017-04-26 | 2017-04-26 | A kind of oscillatory type high pressure water jet machine for being used to prepare graphene |
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| Publication Number | Publication Date |
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| CN206970225U true CN206970225U (en) | 2018-02-06 |
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| CN201720444976.7U Expired - Fee Related CN206970225U (en) | 2017-04-26 | 2017-04-26 | A kind of oscillatory type high pressure water jet machine for being used to prepare graphene |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112871380A (en) * | 2020-12-29 | 2021-06-01 | 华南理工大学 | Preparation method and device of inorganic material nano-grade dispersion liquid |
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2017
- 2017-04-26 CN CN201720444976.7U patent/CN206970225U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112871380A (en) * | 2020-12-29 | 2021-06-01 | 华南理工大学 | Preparation method and device of inorganic material nano-grade dispersion liquid |
| CN112871380B (en) * | 2020-12-29 | 2022-05-24 | 华南理工大学 | Method and device for preparing inorganic material nano-grade dispersion liquid |
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