CN208361893U - A kind of conserving graphite expanding furnace for graphene preparation - Google Patents
A kind of conserving graphite expanding furnace for graphene preparation Download PDFInfo
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- CN208361893U CN208361893U CN201821055846.5U CN201821055846U CN208361893U CN 208361893 U CN208361893 U CN 208361893U CN 201821055846 U CN201821055846 U CN 201821055846U CN 208361893 U CN208361893 U CN 208361893U
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Abstract
The utility model relates to a kind of conserving graphite expanding furnace for graphene preparation, furnace body, conveying device and the control system that it includes pedestal, is mounted on the base；The inductance coil around furnace chamber is provided in furnace body, outside is provided with protective cover；The conveyer belt of conveying device passes through furnace chamber and forms transfer passage；Feed end is equipped with laying device；Laying device includes screw-feeder, material stocking pipe, air inlet pipe, gas source；Striker plate, bottom are equipped with inside material stocking pipe equipped with material-dropping hole, material stocking pipe, which is additionally provided with, connect blanking cylinder with one end of striker plate, and the laying device, inductance coil, conveying device are connect with control system signal respectively.A kind of conserving graphite expanding furnace for graphene preparation of the utility model, it is heated using high-frequency electromagnetic induction, quick heating, temperature control precision are high, energy consumption is small, reduce production cost, guarantee that raw material blanking is evenly distributed on conveyer belt, is precisely controlled swelling temperature and puffing time, effectively improves the puffing quality of graphite.
Description
Technical field
The utility model relates to graphene production fields, more particularly to a kind of graphite expansion for graphene preparation
Furnace.
Background technique
Graphene rapidly becomes the hot spot of every profession and trade research and concern because of performances such as its excellent power, light, electricity, heat.Oxidation
Reduction method is to be aoxidized natural graphite by using the oxidants such as the chemical reagent such as sulfuric acid, nitric acid and potassium permanganate, hydrogen peroxide, is increased
Spacing between big graphite linings, is inserted into oxide in graphite between layers, and graphite oxide is made.Then reactant is subjected to water
It washes, and low temperature drying is carried out to the solid after cleaning, graphite oxide powder is made.Pass through the methods of physics removing, high-temperature expansion
Graphite oxide powder is removed, graphene oxide is made.Graphene oxide is restored finally by chemical method, obtains graphite
Alkene.This method is easy to operate, and it is the graphene preparation process of current mainstream that yield is high.It needs in graphene production process to oxygen
Graphite is expanded.Currently, domestic existing graphite expansion furnace is mostly using methane, propane or diesel oil as fuel, by stone
Black expansion furnace furnace chamber is heated to 1000 DEG C or so, recycles wind-force to be sent into expansible graphite raw material, expansible graphite is at high temperature
The acid ion of piece interlayer can fiercely gasify, and the expansive force of generation can pull open the interlamellar spacing of natural graphite, make expansible graphite
The expansion of volume fierceness, reachable 100~300 times for expanding preceding acidifying graphite volume of volume after expansion, the graphite quality after expansion
Bulk, natural graphite is elongated to strip, and for shape like worm, expansion multiple is higher, and the length that worm pulls open is longer, graphene
The number of plies of stacking is fewer, is more advantageous to subsequent processing technology.
But using methane, propane or diesel oil as fuel, during heating graphite expansion furnace, fuel combustion is produced
Raw a large amount of sulfurous gas is attached on graphite worm, and the sulfur content in graphite worm is caused to greatly improve, and sulfur content is excessively high will
Cause graphene performance not up to standard, seriously affects the yield rate of graphene.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of conserving graphite expanding furnace for graphene preparation, benefit
It is heated with high-frequency electromagnetic induction, quick heating, temperature control precision are high, and energy consumption is small, reduce production cost, while intelligent
Control guarantees that raw material blanking is evenly distributed on conveyer belt, while being precisely controlled puffing time, effectively improves the extruding of graphite
Quality.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of graphite for graphene preparation is swollen
Change furnace, furnace body, conveying device and the control system that it includes pedestal, is mounted on the base；The furnace interior is equipped with both ends
Be open furnace chamber；It is additionally provided with the inductance coil around furnace chamber in the furnace body, is provided with protective cover on the outside of furnace body；The conveying
Device includes conveyer belt, and conveyer belt passes through furnace chamber and forms transfer passage；It is set above the conveyer belt of furnace body feed end side
It is equipped with laying device；The laying device includes screw-feeder, material stocking pipe, air inlet pipe and gas source；The screw-feeder
Discharge port be connected to the downstream position of air inlet pipe, the bottom end of the feed inlet connection air inlet pipe of material stocking pipe, the gas outlet of gas source connects
The other end of tracheae is tapped into, the bottom of the material stocking pipe is evenly arranged with material-dropping hole, striker plate, backgauge are additionally provided in material stocking pipe
Plate is equipped with through-hole corresponding with material-dropping hole interval, and one end of material stocking pipe is additionally provided with blanking cylinder, the work of the blanking cylinder
Moved end is inserted to material stocking pipe and one end of striker plate connects；Air blowing control valve, the air inlet of blanking cylinder are provided in the air inlet pipe
Blanking air valve is provided at mouthful；The laying device, inductance coil, conveying device are connect with control system signal respectively.
The front of the furnace body is provided with transparent windows.
The exit side of the conveying device is provided with collecting box, for collecting the graphene of extruding.
It is provided with feedback system in the collecting box, for timely feedbacking the material stock state of collecting box.
The conveyer belt is nonmetallic conveyer belt resistant to high temperature.
Real-time Feedback device is installed, the Real-time Feedback device is thermocouple, platinum resistance or infrared in the furnace chamber
Temperature inductor is connect with control system signal.
The utility model has the beneficial effects that a kind of conserving graphite expanding furnace for graphene preparation of the utility model, utilizes
High-frequency electromagnetic induction heating, quick heating, temperature control precision are high, and energy consumption is small, reduce production cost, while intelligent control
System coordinates the heating temperature of the load of laying device, the transmission speed of conveying device, inductance coil by control system, protects
Card raw material blanking is evenly distributed on conveyer belt, is precisely controlled swelling temperature and puffing time, is effectively improved the extruding of graphite
Quality.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of conserving graphite expanding furnace for graphene preparation of embodiment；
Fig. 2 is a kind of schematic diagram of the laying device of conserving graphite expanding furnace for graphene preparation of embodiment.
Specific embodiment
In order to deepen the understanding to the utility model, the utility model is done further below in conjunction with drawings and examples
Detailed description, the embodiment are only used for explaining the utility model, do not constitute and limit to the protection scope of the utility model.
Embodiment
As illustrated in fig. 1 and 2, a kind of conserving graphite expanding furnace for graphene preparation is present embodiments provided, it includes pedestal
1, furnace body 2, conveying device 7 and the control system 9 being mounted on pedestal 1；Both ends open furnace chamber 4 is equipped with inside the furnace body 2；
The inductance coil 5 around furnace chamber 4 is additionally provided in the furnace body 2, the outside of furnace body 2 is provided with protective cover 6；The conveying device
7 include conveyer belt, and conveyer belt passes through furnace chamber and forms transfer passage；The top of the conveyer belt of the 2 feed end side of furnace body is arranged
There is laying device 3；The laying device 3 includes screw-feeder 31, material stocking pipe 32, air inlet pipe 36 and gas source 39；The spiral shell
The discharge port of precession glassware 31 is connected to the downstream position of air inlet pipe 36, the bottom of the feed inlet connection air inlet pipe 36 of material stocking pipe 32
End, the other end of the gas outlet connection air inlet pipe 36 of gas source 39, the bottom of the material stocking pipe 32 is evenly arranged with material-dropping hole 33, deposits
It is additionally provided with striker plate 34 in expects pipe 32, striker plate 34, which is equipped with, is spaced corresponding through-hole with material-dropping hole 33, and the one of material stocking pipe 32
End is additionally provided with blanking cylinder 35, and the movable end of the blanking cylinder 35 is inserted to material stocking pipe 32 and connect with one end of striker plate 34；
It is provided with air blowing control valve in the air inlet pipe 36, blanking air valve 38 is provided at the air inlet of blanking cylinder 35；The stone
Device 3, inductance coil 5, conveying device 7 are connect with 9 signal of control system respectively；The front of the furnace body 2 is provided with transparent sight
Examine window；The exit side of the conveying device is provided with collecting box 8, for collecting the graphene of extruding；Setting in the collecting box
There is feedback system, for timely feedbacking the material stock state of collecting box；The conveyer belt is nonmetallic conveyer belt resistant to high temperature；It is described
Real-time Feedback device is installed in furnace chamber 4, the Real-time Feedback device is thermocouple, platinum resistance or infrared temperature sensor,
It connect with 9 signal of control system.
A kind of conserving graphite expanding furnace for graphene preparation of the present embodiment, the mode of the inductance coil heating used is height
Frequency electromagnetic induction heating, quick heating, temperature control precision is high, and energy consumption is small, heats relative to existing fuel type, more has
It imitates, is more environmentally friendly.
A kind of conserving graphite expanding furnace for graphene preparation of the present embodiment, when spreading system receives the letter of control system
After number, screw-feeder starting, quantitatively by graphite oxide from being delivered in air inlet pipe, then, screw-feeder stops working, and beats
Open air blowing control valve, starting gas source dispels graphite oxide on the striker plate in material stocking pipe, at this point, the through-hole on striker plate with
The material-dropping hole of material stocking pipe is staggered, and then, starts blanking cylinder 35, blanking cylinder pulls striker plate mobile, and graphite oxide is logical
It, can by such feeding manner on the evenly dispersed conveyer belt to lower section of the material-dropping hole of the through-hole and material stocking pipe of crossing striker plate
The accurately dilute close degree of distribution of control graphite oxide on a moving belt.
The present embodiment it is a kind of for graphene preparation conserving graphite expanding furnace, furnace chamber is tunnel structure, inside wear
Conveyer belt makes graphite expansion process become continuous operation process, substantially increases production efficiency.
A kind of conserving graphite expanding furnace for graphene preparation of the present embodiment, is heated using high-frequency electromagnetic induction, quick heating,
Temperature control precision is high, and energy consumption is small, reduces production cost, while intelligentized control method, coordinates stone by control system
The heating temperature of the load of device, the transmission speed of conveying device, inductance coil guarantees that raw material blanking is evenly distributed in biography
It send and takes, be precisely controlled swelling temperature and puffing time, effectively improve the puffing quality of graphite.
Above-described embodiment should not in any way limit the utility model, all by the way of equivalent replacement or equivalency transform
The technical solution of acquisition is all fallen in the protection scope of the utility model.
Claims (6)
1. a kind of conserving graphite expanding furnace for graphene preparation, it is characterised in that: it includes pedestal, the furnace being mounted on the base
Body, conveying device and control system；The furnace interior is equipped with both ends open furnace chamber；It is additionally provided in the furnace body around furnace
The inductance coil of chamber is provided with protective cover on the outside of furnace body；The conveying device includes conveyer belt, and conveyer belt is formed across furnace chamber
Transfer passage；Laying device is provided with above the conveyer belt of furnace body feed end side；The laying device includes spiral
Feeder, material stocking pipe, air inlet pipe and gas source；The discharge port of the screw-feeder is connected to the downstream position of air inlet pipe, deposits
The bottom end of the feed inlet connection air inlet pipe of expects pipe, the other end of the gas outlet connection air inlet pipe of gas source, the bottom of the material stocking pipe
It is evenly arranged with material-dropping hole, striker plate is additionally provided in material stocking pipe, striker plate is equipped with through-hole corresponding with material-dropping hole interval, deposits
One end of expects pipe is additionally provided with blanking cylinder, and the movable end of the blanking cylinder is inserted to material stocking pipe and one end of striker plate connects；
It is provided with air blowing control valve in the air inlet pipe, blanking air valve is provided at the air inlet of blanking cylinder；The laying device, electricity
Sense coil, conveying device are connect with control system signal respectively.
2. a kind of conserving graphite expanding furnace for graphene preparation according to claim 1, it is characterised in that: the furnace body
Front is provided with transparent windows.
3. a kind of conserving graphite expanding furnace for graphene preparation according to claim 1, it is characterised in that: the conveying dress
The exit side set is provided with collecting box, for collecting the graphene of extruding.
4. a kind of conserving graphite expanding furnace for graphene preparation according to claim 3, it is characterised in that: the collecting box
It is inside provided with feedback system, for timely feedbacking the material stock state of collecting box.
5. a kind of conserving graphite expanding furnace for graphene preparation according to claim 1, it is characterised in that: the conveyer belt
For nonmetallic conveyer belt resistant to high temperature.
6. a kind of conserving graphite expanding furnace for graphene preparation according to claim 1, it is characterised in that: in the furnace chamber
Real-time Feedback device is installed, the Real-time Feedback device is thermocouple, platinum resistance or infrared temperature sensor, is with control
Signal of uniting connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821055846.5U CN208361893U (en) | 2018-07-04 | 2018-07-04 | A kind of conserving graphite expanding furnace for graphene preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821055846.5U CN208361893U (en) | 2018-07-04 | 2018-07-04 | A kind of conserving graphite expanding furnace for graphene preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208361893U true CN208361893U (en) | 2019-01-11 |
Family
ID=64924635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821055846.5U Active CN208361893U (en) | 2018-07-04 | 2018-07-04 | A kind of conserving graphite expanding furnace for graphene preparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208361893U (en) |
-
2018
- 2018-07-04 CN CN201821055846.5U patent/CN208361893U/en active Active
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