CN205170395U - A device for preparing high -purity expandable graphite - Google Patents
A device for preparing high -purity expandable graphite Download PDFInfo
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- CN205170395U CN205170395U CN201520953814.7U CN201520953814U CN205170395U CN 205170395 U CN205170395 U CN 205170395U CN 201520953814 U CN201520953814 U CN 201520953814U CN 205170395 U CN205170395 U CN 205170395U
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Abstract
The utility model discloses a device for preparing high -purity expandable graphite, including reinforced unit, heating unit, the unit of giving gas, cooling unit and ejection of compact unit, reinforced unit communicates with each other with the heating unit, the heating unit is equipped with the popped passageway that is used for popped graphite, the unit of giving gas communicates with each other bottom popped passageway, cooling unit communicates with each other with the top of popped passageway, ejection of compact unit includes that popped graphite storage unit and miscellaneous feed bin store up the unit, popped graphite storage unit communicates with each other with the cooling unit discharge gate, miscellaneous material list unit communicates with each other with the blanking mouth of heating unit. The utility model discloses a graphite time of calcining is controlled to control feed rate and air speed, has reduced the production of the inflation and the incomplete graphite that expands, the purity of effectual improvement product, adopt the popped graphite of vertical tubular furnace heating, make graphite fully expand to the reduction is to the purity requirement of raw and other materials, the cost is reduced.
Description
Technical field
The utility model relates to bulking equipment field, specifically a kind of device for the preparation of high purity expanded graphite.
Background technology
2004, Univ Manchester UK physicist An Deliegaimu and Constantine Nuo Woxiaoluofu, novel nano-material " Graphene " is isolated in success from graphite, and confirm that it can Individual existence, therefore two people also obtain Nobel Prize in physics in 2010 jointly.At present, the large-scale production of Graphene is mainly standby by chemistry redox legal system.And expanded graphite is as the intermediates preparing Graphene and derivative thereof, be by natural flaky graphite through acidifying intercalation, washing, drying, high temperature puffing and obtain a kind ofly there is loose porous vermiform material, also known as worm graphite.Wherein, preparing highly purified expanded graphite is the prerequisite preparing high-quality graphene and derivative thereof.
Expanded graphite, except possessing the good characteristics such as the cold-hot of natural graphite itself, corrosion-resistant, heat conduction, conduction, self-lubricating, also has the characteristics such as lightweight that natural graphite do not possess, softness, compressible, absorption and biocompatibility simultaneously.Along with scientific-technical progress and high-tech exploitation, this outstanding engineering materials of expanded graphite, in high speed, corrosion-resistant, wear-resisting and energy-conservation contour frontier, progressively instead of some metallic substance and organic synthesis material, be widely used in oil, chemical industry, environmental protection, electric power, military affairs, the aspects such as biomedicine.
Publication number is that the Chinese patent of CN203112512U discloses a kind of conserving graphite expanding furnace, comprises body of heater, feeding device, air feeder and drawing mechanism, and it adopts the mode of combustible gas combustion heating in bottom, to provide the environment required for graphite expansion.This technical scheme adopts blower fan to be blown to by raw material in high temperature groove, and easily the generation heating raw materials time is short, and expand problem not fully, and the existence of oxygen can make graphite or expanded graphite that serious oxidative phenomena occurs under the high temperature conditions.
Publication number be the Chinese patent of CN203612963U adopt to devise a kind of rotary type based on tiltable countertop unit can continuous-feeding silica tube puffing furnace, comprising: tiltable countertop unit, high heating element, drive unit and feeding device.This device is difficult to Bulking Time and the degrees of expansion of equal control graphite, easily accumulation is produced time raw material adds, and air-flow too large time can not effectively separate expand before and after graphite, the graphite completely that expands can not be taken out in time when air-flow is too little, easily cause line clogging.
Lab workers also has and adopts high temperature Muffle furnace to realize graphite and carry out puffing, but when using high temperature Muffle furnace, not only needs the material manually putting into and take out calcining, also need the calcining amount controlling every schungite.Which increase danger and the complexity of experimental implementation, affect the expansion effect of graphite, be difficult to realize continuous prodution.
Utility model content
The purpose of this utility model is the preparation facilities providing a kind of continuous prodution high purity expanded graphite, based on vertical tubular furnace, utilize intercalated graphite different with the density of expanded graphite, by the effect of gravity and wind-force, realize expanded graphite and be separated with non-expanded graphite.
The utility model technical solution problem adopts following technical scheme:
A kind of device for the preparation of high purity expanded graphite, comprise dosage unit, heating unit, gas unit, cooling unit and discharging unit, described dosage unit communicates with heating unit, described heating unit is provided with the expanded passage for expanded graphite, and described gas unit communicates with expanded channel bottom; Described cooling unit communicates with the top of expanded passage, and described discharging unit comprises expanded graphite storage unit and assorted feed bin storage unit; Described expanded graphite storage unit communicates with cooling unit discharge port, and described assorted material unit communicates with the blanking port of heating unit.
As preferably, described heating unit adopts controllable high-temperature vertical tubular furnace, and comprise body of heater and run through the expanded passage of body of heater, described body of heater is provided with heating unit.
As preferably, described gas unit comprises source of the gas, airflow line and air-flow shower nozzle; Described airflow line connects source of the gas and air-flow shower nozzle, and described air-flow shower nozzle is located at the blanking port place of expanded passage.
As preferably, described cooling unit comprises circulating cooling tank and spiral heat exchanger tube, and described spiral heat exchanger tube imports and exports corresponding the top discharge mouth and the expanded graphite storage unit that are communicated with expanded passage.
As preferably, described expanded graphite storage unit comprises separation bin and storage bin, and be provided with cyclonic separator in described separation bin, the waste gas produced when expanding is discharged from the induced exhaust being located at separation bin top by the air-flow produced by cyclonic separator; Described storage bin is located at the bottom of separation bin, between be provided with wind stopping device.
As preferably, the body of heater of described controllable high-temperature vertical tubular furnace is two sections, and interval is located on expanded passage, and the discharge port of described dosage unit communicates with the expanded passage between two-stage furnace body.
As preferably, the discharge port of described dosage unit communicates with the expanded passage be positioned at above body of heater.
As preferably, described dosage unit is a screw feeder.
As preferably, described expanded passage is quartzy material.
As preferably, described heating unit is resistance wire.
Compared with the prior art, the utility model beneficial effect is embodied in:
The utility model adopts vertical high-temperature diamond heating mode, heats up fast and safely, can increase graphite layers ejection power, make the expansion process of graphite more complete; Realize zone heating by sectional type furnace binding, graphite is fully expanded, filter out with more effective the graphite completely that expands, thus reduce raw-material purity requirement, reduce cost.Adopt zone heating also can reduce the adjustment difficulty of gas flow rates in graphite expansion process simultaneously; Regulate and control graphite calcination time by control feed rate and gas velocity, decrease the generation of the incomplete graphite that do not expand and expand, improve the purity of product; The utility model can be implemented in charging-expanded-discharging-cooling-collection and dedoping step intervenes without the need to operator, reduces energy loss, reduces and produce danger, improve production efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model first embodiment.
Fig. 2 is the structural representation of the utility model second embodiment.
Reference numeral: 1 source of the gas, 2 assorted material outlets, 3 assorted feed bin, 4 airflow lines, 5 air-flow shower nozzles, 6 expanded passages, 7 bodies of heater, 8 resistive heaters, 9 screw feeders, 10 charging openings, 11 circulating water grooves, 12 spiral heat exchanger tubes, 13 induced exhausts, 14 blocking material plates, 15 cyclonic separators, 16 wind stopping devices, 17 storage bins, 18 products exports.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, explanation is further explained to technical solutions of the utility model.
Embodiment 1
The utility model provides a kind of device for the preparation of high purity expanded graphite.Fig. 1 is the structural representation of the utility model first embodiment.As shown in Figure 1, the present embodiment comprises dosage unit, heating unit, gas unit, cooling unit and discharging unit, and dosage unit communicates with heating unit, and heating unit is provided with the expanded passage for expanded graphite, and gas unit communicates with expanded channel bottom; Cooling unit communicates with the top of expanded passage, and discharging unit comprises expanded graphite storage unit and assorted feed bin storage unit; Expanded graphite storage unit communicates with cooling unit discharge port, and assorted material unit communicates with the blanking port of heating unit.
Gas unit comprises source of the gas 1, airflow line 4 and air-flow shower nozzle 5; Airflow line 4 connects source of the gas 1 and air-flow shower nozzle 5, and air-flow shower nozzle 5 is located at the blanking port place below expanded passage.Source of the gas comprises nitrogen, argon gas or air, wherein one or both mixed gas can be adopted, it is controlled that the mixed gas realizing rare gas element or different oxygen content realizes oxygen content, effectively can reduce the phenomenon of expanded graphite high temperature oxidation ablation, improves expanded graphite purity.
Heating unit adopts controllable high-temperature vertical tubular furnace, and comprise body of heater 7 and the expanded passage 6 running through body of heater, expanded passage 6 is silica tube preferably; Body of heater is provided with the heating unit of temperature-controllable on the inwall of the expanded passage of ring, and during concrete enforcement, heating unit can adopt resistive heater 8.
Dosage unit is a screw feeder, is provided with charging opening 10 and discharge port, and its discharge port communicates with the expanded passage be positioned at above body of heater; Screw feeder successionally can carry out quantitative constant speed and feed in raw material.
Cooling unit comprises circulating cooling tank 11 and spiral heat exchanger tube 12, and spiral heat exchanger tube 12 is located in cooling trough 11, and the import and export correspondence of spiral heat exchanger tube is communicated with top discharge mouth and the expanded graphite storage unit of expanded passage 6.The utility model adopts spiral heat exchanger tube 12 can increase heat interchanging area with the expanded graphite temperature be decreased through fast and effectively.
Expanded graphite storage unit comprises the separation bin and storage bin that distribute up and down, the outlet of above-mentioned spiral heat exchanger tube is communicated with separation bin, cyclonic separator 15 is provided with in separation bin, the top of separation bin is provided with induced exhaust 13, the air inlet of induced exhaust is provided with mesh-like shelves flitch 13, storage bin 17 is connected to the bottom of separation bin, is separated by wind stopping device 16, and the side-lower of storage bin 17 is provided with products export 18.Waste gas is discharged from induced exhaust 13 by separation bin by the air-flow produced by cyclonic separator with the expanded graphite of waste gas entered, and expanded graphite falls into reserves storehouse 17.
Embodiment 2
Fig. 2 is the structural representation of the utility model second embodiment.As shown in Figure 2, the body of heater of the controllable high-temperature vertical tubular furnace of the present embodiment can adopt sectional type, namely upper and lower two body of heater intervals are located on expanded passage, and the discharge port of screw feeder communicates with the expanded passage between two-stage furnace body, and other structures are with the first embodiment.This embodiment realizes zone heating by sectional type furnace binding, for expanded passage provides thermograde, graphite adds in the middle of body of heater, and after charging, gravity is greater than wind-force, and graphite falls, thermogenetic high-temperature area is added expanded through below body of heater, suffered below wind-force increases, and expanded graphite rises, and adds thermogenetic high-temperature area continue expanded through top body of heater, the expanded gravity of graphite is completely less than wind-force, exports blowout and enter in spiral heat exchanger tube above expanded passage; And expanded incomplete material continues to decline, again fall into below body of heater add thermogenetic high-temperature area continue expanded, therefore the present embodiment device can make graphite fully to expand, the graphite completely that expands is filtered out with more effective, thus reduce raw-material purity requirement, reduce cost.Adopt zone heating also can reduce the adjustment difficulty of gas flow rates in graphite expansion process simultaneously.
Above embodiment 1 and embodiment 2 device, in actually operating, source of the gas can select nitrogen, argon gas or air, also can adopt wherein one or both mixed gas, realize the mixed gas of rare gas element or different oxygen content, after selecting suitable source of the gas, open gas source switch, preliminary removal graphite expansion channel interior air (then not needing during blowing air), open the heater switch of vertical tubular furnace, heating schedule is set, open the cooling circulating water of circulating cooling tank simultaneously, when expanded intra passage temperature is heated to required temperature, begin through that screw feeder is successional carries out quantitative feeding, and the input speed of adjusting screw charger, the gas flow rates of air-flow shower nozzle ejection is regulated by source of the gas place flow valve, to ensure to expand, product completely can enter in spiral heat exchanger tube from expanded passage top discharge mouth discharge along with air-flow because density is low, the incomplete product that expands then can be deposited to the assorted feed bin 3 (i.e. assorted feed bin storage unit) being provided with the outlet 2 of assorted material be arranged in below expanded passage because gravity is greater than air-flow wind-force.Expanded graphite is completely along with air-flow is by spiral heat exchanger tube, after in circulating cooling tank, cooling circulating water carries out heat exchange cooling, reach required temperature, expanded complete graphite and expanded time produce waste gas enter together in separation bin, by the cyclonic separator effect in separation bin, waste gas is discharged from induced exhaust along with air-flow, and expanded complete graphite enters in storage bin 17.
Above embodiment 1 and 2 all adopts selection by winnowing principle, i.e. graphite, and the density of expand incomplete graphite and the complete graphite that expands is respectively pmax, p1-pn and pmin, and density reduces gradually, and buoyancy suffered under same wind-force can increase successively.In embodiment 1, consider expand complete graphite and the buoyancy difference of other graphite, select the wind-force size of a middle some A, the complete graphite of expansion and other graphite can be separated; In example 2, the buoyancy difference of the consideration incomplete graphite of expansion and graphite, the wind-force size of a some B in the middle of selecting, can separate the incomplete graphite of expansion and graphite, the graphite of the incomplete graphite of further expansion can reexpansion, converts the complete graphite that expands to.
Be to be understood that embodiment as herein described has been only and explain explanation technical scheme, those skilled in the art can make various amendment or change according to it, when not departing from spirit of the present invention, all belong to protection scope of the present invention.
Claims (10)
1. the device for the preparation of high purity expanded graphite, it is characterized in that, comprise dosage unit, heating unit, gas unit, cooling unit and discharging unit, described dosage unit communicates with heating unit, described heating unit is provided with the expanded passage for expanded graphite, and described gas unit communicates with expanded channel bottom; Described cooling unit communicates with the top of expanded passage, and described discharging unit comprises expanded graphite storage unit and assorted feed bin storage unit; Described expanded graphite storage unit communicates with cooling unit discharge port, and described assorted material unit communicates with the blanking port of heating unit.
2. a kind of device for the preparation of high purity expanded graphite according to claim 1, is characterized in that, described heating unit adopts controllable high-temperature vertical tubular furnace, and comprise body of heater and the expanded passage running through body of heater, described body of heater is provided with heating unit.
3. a kind of device for the preparation of high purity expanded graphite according to claim 1, is characterized in that, described gas unit comprises source of the gas, airflow line and air-flow shower nozzle; Described airflow line connects source of the gas and air-flow shower nozzle, and described air-flow shower nozzle is located at the blanking port place of expanded passage.
4. a kind of device for the preparation of high purity expanded graphite according to claim 1, it is characterized in that, described cooling unit comprises circulating cooling tank and spiral heat exchanger tube, and described spiral heat exchanger tube imports and exports corresponding the top discharge mouth and the expanded graphite storage unit that are communicated with expanded passage.
5. a kind of device for the preparation of high purity expanded graphite according to claim 1, it is characterized in that, described expanded graphite storage unit comprises separation bin and storage bin, be provided with cyclonic separator in described separation bin, the waste gas produced when expanding is discharged from the induced exhaust being located at separation bin top by the air-flow produced by cyclonic separator; Described storage bin is located at the bottom of separation bin, between be provided with wind stopping device.
6. a kind of device for the preparation of high purity expanded graphite according to claim 2, it is characterized in that, the body of heater of described controllable high-temperature vertical tubular furnace is two sections, and interval is located on expanded passage, and the discharge port of described dosage unit communicates with the expanded passage between two-stage furnace body.
7. a kind of device for the preparation of high purity expanded graphite according to claim 2, is characterized in that, the discharge port of described dosage unit communicates with the expanded passage be positioned at above body of heater.
8. a kind of device for the preparation of high purity expanded graphite according to claim 1 and 2, is characterized in that, described dosage unit is a screw feeder.
9. a kind of device for the preparation of high purity expanded graphite according to claim 2, is characterized in that, described heating unit is resistance wire.
10. according to a kind of device for the preparation of high purity expanded graphite in claim 1-7 described in any one, it is characterized in that, described expanded passage is quartzy material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520953814.7U CN205170395U (en) | 2015-11-25 | 2015-11-25 | A device for preparing high -purity expandable graphite |
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| CN201520953814.7U CN205170395U (en) | 2015-11-25 | 2015-11-25 | A device for preparing high -purity expandable graphite |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106006627A (en) * | 2016-07-08 | 2016-10-12 | 张麟德 | High-temperature reaction device and graphene material production system |
| CN107021479A (en) * | 2017-05-25 | 2017-08-08 | 宜昌星锐烯碳科技有限责任公司 | High temperature puffing device is used in a kind of high heat conduction natural stone ink film production |
| CN107253717A (en) * | 2017-07-24 | 2017-10-17 | 郴州国盛新材科技有限公司 | A kind of graphene production system |
| CN107311169A (en) * | 2017-08-04 | 2017-11-03 | 湖南国盛石墨科技有限公司 | A kind of expanded graphite and preparation method thereof |
| CN107352530A (en) * | 2017-08-04 | 2017-11-17 | 湖南国盛石墨科技有限公司 | A kind of micro crystal graphite prepares graphene method |
| CN107662917A (en) * | 2017-08-04 | 2018-02-06 | 湖南国盛石墨科技有限公司 | A kind of micro crystal graphite prepares graphene method |
| CN109081337A (en) * | 2018-11-02 | 2018-12-25 | 辽宁新瑞碳材料科技有限公司 | A kind of energy-saving graphite high-temperature expansion furnace |
| CN111981854A (en) * | 2020-08-24 | 2020-11-24 | 青岛南墅瑞英石墨有限公司 | Feeding device for graphite high-temperature purification furnace |
| CN112551520A (en) * | 2020-12-25 | 2021-03-26 | 大连理工江苏研究院有限公司 | Microwave graphite puffing equipment |
| CN113428853A (en) * | 2021-07-21 | 2021-09-24 | 上海赛瑞达新材料工程技术有限公司 | High-temperature graphite purification device |
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2015
- 2015-11-25 CN CN201520953814.7U patent/CN205170395U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106006627A (en) * | 2016-07-08 | 2016-10-12 | 张麟德 | High-temperature reaction device and graphene material production system |
| CN106006627B (en) * | 2016-07-08 | 2019-03-29 | 张麟德 | A kind of pyroreaction device and grapheme material production system |
| CN107021479A (en) * | 2017-05-25 | 2017-08-08 | 宜昌星锐烯碳科技有限责任公司 | High temperature puffing device is used in a kind of high heat conduction natural stone ink film production |
| CN107253717A (en) * | 2017-07-24 | 2017-10-17 | 郴州国盛新材科技有限公司 | A kind of graphene production system |
| CN107311169A (en) * | 2017-08-04 | 2017-11-03 | 湖南国盛石墨科技有限公司 | A kind of expanded graphite and preparation method thereof |
| CN107352530A (en) * | 2017-08-04 | 2017-11-17 | 湖南国盛石墨科技有限公司 | A kind of micro crystal graphite prepares graphene method |
| CN107662917A (en) * | 2017-08-04 | 2018-02-06 | 湖南国盛石墨科技有限公司 | A kind of micro crystal graphite prepares graphene method |
| CN109081337A (en) * | 2018-11-02 | 2018-12-25 | 辽宁新瑞碳材料科技有限公司 | A kind of energy-saving graphite high-temperature expansion furnace |
| CN111981854A (en) * | 2020-08-24 | 2020-11-24 | 青岛南墅瑞英石墨有限公司 | Feeding device for graphite high-temperature purification furnace |
| CN112551520A (en) * | 2020-12-25 | 2021-03-26 | 大连理工江苏研究院有限公司 | Microwave graphite puffing equipment |
| CN113428853A (en) * | 2021-07-21 | 2021-09-24 | 上海赛瑞达新材料工程技术有限公司 | High-temperature graphite purification device |
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