CN109289219A - The method of dry graphene powder - Google Patents
The method of dry graphene powder Download PDFInfo
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- CN109289219A CN109289219A CN201811029152.9A CN201811029152A CN109289219A CN 109289219 A CN109289219 A CN 109289219A CN 201811029152 A CN201811029152 A CN 201811029152A CN 109289219 A CN109289219 A CN 109289219A
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- Prior art keywords
- graphene
- drying
- graphene powder
- dry
- steam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
- B01D1/18—Evaporating by spraying to obtain dry solids
Abstract
The method of dry graphene powder, it is related to a kind of method of dry graphene powder, is related to the drying field of graphene.The present invention is the technical issues of being easy to happen reunion to solve graphene in drying.This method is as follows: the graphene steam of atomization is introduced into drying tower, graphene steam is contacted with hot wind, and it is dry and cooling rapidly, dry graphene powder is obtained, graphene powder is collected by bag filter.The invention proposes a kind of novel graphene powder drying techniques, by the graphene dispersing solution of certain density neutrality through high-temperature gasification and cooling, can efficiently obtain and obtain dry graphene powder.This method step is simple, is a kind of efficient drying means.Operation is simple for advantages of the present invention, and technical process is cheap, and arid cycle is short, and high financial profit, graphene is not reunited in drying.
Description
Technical field
The present invention relates to a kind of methods of dry graphene powder, are related to the drying field of graphene.
Background technique
It is well known that graphene surface energy with higher, is easy to produce irreversible reunion, stone in the drying process
After black alkene is reunited, original two-dimensional structure is just destroyed, the properties such as electron mobility, electric conductivity, flexibility are greatly lowered, is intended to
Dry graphene powder is prepared, and retains its original intrinsic structure it is necessary to overcome its reunion in the drying process, in graphite
Alkene preparation field this be always many scholars and associated specialist public relations project.And with the development of graphene industry, powder is dry
Drying process also needs further to consider efficiency and cost, and the maximum amount of graphene powder is obtained within the effective time, with cooperation
Corresponding production capacity.
Summary of the invention
The purpose of the present invention is to solve graphenes to be easy to happen the technical issues of reunion in drying, provides one kind
The method of dry graphene powder.
The method of dry graphene powder is as follows:
One, it is using electric diaphragm pump injection revolving speed by the neutral graphene slurry that mass concentration is 0.1%~0.5%
In the rotary atomizer of 9000r/min~15000r/min, atomized graphene steam；
Two, the dedusting hot wind that the temperature after heating is 190 DEG C~230 DEG C is introduced into drying tower；
Three, the graphene steam of atomization being introduced into drying tower, graphene steam is contacted with hot wind, and it is dry and cooling rapidly,
Dry graphene powder is obtained, graphene powder is collected by bag filter.
The problem of being existed in the drying process based on graphene oxide and graphene powder, it is contemplated that existing Graphene powder
Soma drying process existing deficiency in terms of efficiency and economic benefit, the invention proposes a kind of novel graphene powder drying works
Skill can be obtained efficiently by the graphene dispersing solution of certain density neutrality through high-temperature gasification and cooling and obtain dry graphite
Alkene powder.This method step is simple, is a kind of efficient drying means.Operation is simple for advantages of the present invention, technical process
Inexpensively, arid cycle is short, and high financial profit, graphene is not reunited in drying.
Specific embodiment
The technical solution of the present invention is not limited to the following list, further includes between each specific embodiment
Any combination.
Specific embodiment 1: the method for dry graphene powder is as follows in present embodiment:
One, it is using electric diaphragm pump injection revolving speed by the neutral graphene slurry that mass concentration is 0.1%~0.5%
In the rotary atomizer of 9000r/min~15000r/min, atomized graphene steam；
Two, the dedusting hot wind that the temperature after heating is 190 DEG C~230 DEG C is introduced into drying tower；
Three, the graphene steam of atomization being introduced into drying tower, graphene steam is contacted with hot wind, and it is dry and cooling rapidly,
Dry graphene powder is obtained, graphene powder is collected by bag filter.
Specific embodiment 2: the present embodiment is different from the first embodiment in that neutrality graphite described in step 1
The mass concentration of alkene slurry is 0.2%.It is other same as the specific embodiment one.
Specific embodiment 3: the present embodiment is different from the first and the second embodiment in that neutrality described in step 1
The mass concentration of graphene slurry is 0.25%.It is other the same as one or two specific embodiments.
Specific embodiment 4: unlike one of present embodiment and specific embodiment one to three described in step 1
The mass concentration of neutral graphene slurry is 0.3%.It is other identical as one of specific embodiment one to three.
Specific embodiment 5: unlike one of present embodiment and specific embodiment one to four described in step 1
The revolving speed of rotary atomizer is 10000r/min.It is other identical as one of specific embodiment one to four.
Specific embodiment 6: unlike one of present embodiment and specific embodiment one to five described in step 1
The revolving speed of rotary atomizer is 12000r/min.It is other identical as one of specific embodiment one to five.
Specific embodiment 7: unlike one of present embodiment and specific embodiment one to six described in step 1
The revolving speed of rotary atomizer is 13000r/min.It is other identical as one of specific embodiment one to six.
Specific embodiment 8: unlike one of present embodiment and specific embodiment one to seven described in step 1
The revolving speed of rotary atomizer is 14000r/min.It is other identical as one of specific embodiment one to seven.
Specific embodiment 9: unlike one of present embodiment and specific embodiment one to eight described in step 3
The dedusting hot wind that temperature after heating is 200 DEG C introduces drying tower.It is other identical as one of specific embodiment one to eight.‘
Specific embodiment 10: unlike one of present embodiment and specific embodiment one to nine described in step 3
The dedusting hot wind that temperature after heating is 220 DEG C introduces drying tower.It is other identical as one of specific embodiment one to nine.
Effect of the present invention is verified using following embodiments:
Embodiment 1:
The method of dry graphene powder is as follows:
One, the neutral graphene slurry that mass concentration is 0.1% is injected revolving speed using electric diaphragm pump is 9000r/min
Rotary atomizer in, atomized graphene steam；
Two, the dedusting hot wind that the temperature after heating is 190 DEG C is introduced into drying tower；
Three, the graphene steam of atomization being introduced into drying tower, graphene steam is contacted with hot wind, and it is dry and cooling rapidly,
Obtain dry graphene powder.
Embodiment 2:
The method of dry graphene powder is as follows:
One, the neutral graphene slurry that mass concentration is 0.2% is injected revolving speed using electric diaphragm pump is 9500r/min
Rotary atomizer in, atomized graphene steam；
Two, the dedusting hot wind that the temperature after heating is 200 DEG C is introduced into drying tower；
Three, the graphene steam of atomization being introduced into drying tower, graphene steam is contacted with hot wind, and it is dry and cooling rapidly,
Obtain dry graphene powder.
Embodiment 3:
The method of dry graphene powder is as follows:
One, the neutral graphene slurry that mass concentration is 0.3% is injected revolving speed using electric diaphragm pump is 11000r/
In the rotary atomizer of min, atomized graphene steam；
Two, the dedusting hot wind that the temperature after heating is 220 DEG C is introduced into drying tower；
Three, the graphene steam of atomization being introduced into drying tower, graphene steam is contacted with hot wind, and it is dry and cooling rapidly,
Obtain dry graphene powder.
Embodiment 4:
The method of dry graphene powder is as follows:
One, the neutral graphene slurry that mass concentration is 0.25% is injected revolving speed using electric diaphragm pump is 10000r/
In the rotary atomizer of min, atomized graphene steam；
Two, the dedusting hot wind that the temperature after heating is 200 DEG C is introduced into drying tower；
Three, the graphene steam of atomization being introduced into drying tower, graphene steam is contacted with hot wind, and it is dry and cooling rapidly,
Obtain dry graphene powder.
Claims (10)
1. the method for dry graphene powder, it is characterised in that the method for dry graphene powder is as follows:
One, the neutral graphene slurry that mass concentration is 0.1%~0.5% is injected revolving speed using electric diaphragm pump is 9000r/
In the rotary atomizer of min~15000r/min, atomized graphene steam；
Two, the dedusting hot wind that the temperature after heating is 190 DEG C~230 DEG C is introduced into drying tower；
Three, the graphene steam of atomization being introduced into drying tower, graphene steam is contacted with hot wind, and it is dry and cooling rapidly, it obtains
Dry graphene powder.
2. drying the method for graphene powder according to claim 1, it is characterised in that neutrality graphene described in step 1
The mass concentration of slurry is 0.2%.
3. drying the method for graphene powder according to claim 1, it is characterised in that neutrality graphene described in step 1
The mass concentration of slurry is 0.25%.
4. drying the method for graphene powder according to claim 1, it is characterised in that neutrality graphene described in step 1
The mass concentration of slurry is 0.3%.
5. drying the method for graphene powder according to claim 1, it is characterised in that rotary atomizer described in step 1
Revolving speed be 10000r/min.
6. drying the method for graphene powder according to claim 1, it is characterised in that rotary atomizer described in step 1
Revolving speed be 12000r/min.
7. drying the method for graphene powder according to claim 1, it is characterised in that rotary atomizer described in step 1
Revolving speed be 13000r/min.
8. drying the method for graphene powder according to claim 1, it is characterised in that rotary atomizer described in step 1
Revolving speed be 14000r/min.
9. drying the method for graphene powder according to claim 1, it is characterised in that the temperature after being heated described in step 3
Degree introduces drying tower for 200 DEG C of dedusting hot wind.
10. drying the method for graphene powder according to claim 1, it is characterised in that the temperature after being heated described in step 3
Degree introduces drying tower for 220 DEG C of dedusting hot wind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811029152.9A CN109289219A (en) | 2018-09-05 | 2018-09-05 | The method of dry graphene powder |
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|---|---|---|---|
| CN201811029152.9A CN109289219A (en) | 2018-09-05 | 2018-09-05 | The method of dry graphene powder |
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| CN109289219A true CN109289219A (en) | 2019-02-01 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101993065A (en) * | 2010-12-17 | 2011-03-30 | 中国科学院上海微***与信息技术研究所 | Method for preparing graphene powder |
| KR101295225B1 (en) * | 2012-01-12 | 2013-08-09 | 주식회사 엔켐 | Method for producing graphene dispersed solution and powder thereof |
-
2018
- 2018-09-05 CN CN201811029152.9A patent/CN109289219A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101993065A (en) * | 2010-12-17 | 2011-03-30 | 中国科学院上海微***与信息技术研究所 | Method for preparing graphene powder |
| KR101295225B1 (en) * | 2012-01-12 | 2013-08-09 | 주식회사 엔켐 | Method for producing graphene dispersed solution and powder thereof |
Non-Patent Citations (1)
| Title |
|---|
| 胡桂川: "《垃圾焚烧发电与二次污染控制技术》", 31 December 2011, 重庆大学出版社 * |
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Application publication date: 20190201 |