CN113368789A - Device and method for cleaning attachments in carbon nanotube fluidized bed reactor - Google Patents
Device and method for cleaning attachments in carbon nanotube fluidized bed reactor Download PDFInfo
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- CN113368789A CN113368789A CN202110746189.9A CN202110746189A CN113368789A CN 113368789 A CN113368789 A CN 113368789A CN 202110746189 A CN202110746189 A CN 202110746189A CN 113368789 A CN113368789 A CN 113368789A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000002041 carbon nanotube Substances 0.000 title claims abstract description 43
- 229910021393 carbon nanotube Inorganic materials 0.000 title claims abstract description 43
- 238000004140 cleaning Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000007789 gas Substances 0.000 claims description 94
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 239000012159 carrier gas Substances 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 239000006258 conductive agent Substances 0.000 description 8
- 229910021389 graphene Inorganic materials 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000013543 active substance Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000002482 conductive additive Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003335 steric effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/1872—Details of the fluidised bed reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- 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
- C01B32/158—Carbon nanotubes
- C01B32/16—Preparation
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses an attachment cleaning device and method in a carbon nano tube fluidized bed reactor, which can effectively clean attachments in the production process in time, wherein the attachment cleaning device comprises: distributor, setting up gas flow on the distributor with higher speed shower nozzle, gas compressor and compressed gas buffer memory jar, gas compressor's air inlet links to each other with the air supply, gas compressor's gas outlet through first pipeline and cluster establish first control valve in first pipeline with compressed gas buffer memory jar's air inlet links to each other, compressed gas buffer memory jar's gas outlet through the second pipeline and in proper order cluster establish second control valve and the air-vent valve in the second pipeline with the distributor link to each other. The attachment cleaning device can effectively clean the part which is easy to generate the attachment in the carbon nano tube fluidized bed reactor in time, thereby improving the production efficiency and the quality of the carbon nano tube production line.
Description
Technical Field
The invention relates to a carbon nano tube fluidized bed reactor, in particular to a device and a method for cleaning attachments in the carbon nano tube fluidized bed reactor.
Background
The conductive additive is one of indispensable key materials of the lithium ion battery, and particularly has very important function in the large-current charging and discharging process of the power lithium ion battery. After 2014, with the increasing application of high-power and high-capacity batteries in the fields of electric automobiles, electronic products, power grid control, renewable energy sources and the like, battery enterprises urgently need to use higher-performance conductive agents to improve and improve the power characteristics of the batteries.
The current widely used conductive agents of the lithium battery can be divided into three types, namely conductive carbon black, conductive graphite, novel conductive agents and the like, and the novel conductive agents mainly refer to carbon nano tubes, graphene and the like. The graphene is difficult to obtain mass-produced products on a large scale due to the immature production technology, and the current multi-layer graphene used in the market is a concept-confused multi-layer graphene, and has a steric effect which is difficult to solve in the process of being used as a conductive agent, so that the graphene can be only used in lithium iron phosphate batteries in a small range in the field of lithium batteries. The carbon nano tube is of a one-dimensional tubular structure and has a high length-diameter ratio, and a conductive network fully connected with an active substance can be formed by a small amount of additive amount, so that the capacity and the cycling stability of the battery can be obviously improved. The carbon nano tube has double electric layer effect, and is beneficial to improving the high-rate charge and discharge performance of the battery. The excellent thermal conductivity of the carbon nano tube is beneficial to the heat dissipation of the battery, and the internal polarization is reduced, so that the high-low temperature performance and the safety of the battery can be improved, and the service life of the battery can be prolonged.
The output of the Chinese lithium battery is driven by the new energy automobile market which is increased at a high speed in 2017, and the output reaches 80.5GWH, which is increased by 27% on a par. The rapid development of the whole lithium battery industry directly drives the demand of the carbon nano tube conductive paste to rise, GGII predicts that in the coming years, Chinese novel conductive agents, particularly carbon nano tube conductive agents gradually replace traditional conductive agents, and the market scale of the carbon nano tube conductive paste approaches 16 ten thousand tons by 2022 years.
Although the prospect of the carbon nanotube industry is very good, behind the development of high-speed requirements, matched production equipment is old, and attachments in the production process are not timely and effectively cleaned, so that the production efficiency and the quality of a carbon nanotube production line are influenced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides an attachment cleaning device in a carbon nano tube fluidized bed reactor, which can effectively clean attachments in the production process in time.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: an attachment cleaning apparatus in a carbon nanotube fluidized bed reactor, comprising: distributor, setting up gas flow on the distributor shower nozzle with higher speed, gas compressor and compressed gas buffer memory jar, gas compressor's air inlet links to each other with the air supply, gas compressor's gas outlet through first pipeline and cluster establish first control valve in first pipeline with the air inlet of compressed gas buffer memory jar links to each other, the gas outlet of compressed gas buffer memory jar through the second pipeline and in proper order cluster establish second control valve and the air-vent valve in the second pipeline with the distributor link to each other.
As a preferable scheme, in the attached matter cleaning device in the carbon nanotube fluidized bed reactor, the gas source is inert gas or carrier gas used by the carbon nanotube fluidized bed reactor.
The technical problem to be solved by the invention is as follows: provides an attachment cleaning method in a carbon nano tube fluidized bed reactor, which can effectively clean attachments in the production process in time.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the invention discloses a method for cleaning attachments in a carbon nanotube fluidized bed reactor, which adopts an attachment cleaning device in the carbon nanotube fluidized bed reactor, and comprises the following specific steps:
1) preparing compressed gas: opening the first control valve, closing the second control valve, injecting a gas source into the compressed gas cache tank through the gas compressor to form compressed gas, and stopping the gas compressor when the pressure of the compressed gas in the compressed gas cache tank is more than or equal to 0.7 Mpa;
2) when the device is used, the second control valve is opened, the pressure of compressed gas entering the distributor is regulated to 0.4-0.5 Mpa through the pressure regulating valve, the compressed gas is sprayed out from the airflow accelerating nozzle through the distributor, and the part, which is easy to generate attachments, in the carbon nanotube fluidized bed reactor is cleaned; and when the pressure of the compressed gas in the compressed gas cache tank is lower than 0.6Mpa, the gas compressor is started, the gas source is continuously injected into the compressed gas cache tank, and when the pressure of the compressed gas in the compressed gas cache tank is more than or equal to 0.7Mpa, the gas compressor is stopped.
As a preferable mode, in the method for cleaning the adhered substance in the carbon nanotube fluidized bed reactor, the pressure of the compressed gas in the compressed gas buffer tank is controlled to be less than 0.8 Mpa.
As a preferable scheme, in the method for cleaning the attachments in the carbon nano tube fluidized bed reactor, the gas velocity of the gas flow accelerating spray head is more than or equal to 60 m/s.
The invention has the beneficial effects that: the attachment cleaning device can effectively clean the part which is easy to generate the attachment in the carbon nano tube fluidized bed reactor in time, thereby improving the production efficiency and the quality of the carbon nano tube production line. In addition, the compressed gas buffer tank is adopted, so that the compressed gas supplied to the distributor is always in a stable supply state, and the pressure is stabilized; meanwhile, the air speed of the airflow accelerating nozzle is ensured to be more than or equal to 60m/s, and the cleaning effect is ensured.
Drawings
FIG. 1 is a schematic view showing the structure of the attached matter removing apparatus according to the present invention.
The reference numerals in fig. 1 are respectively: 1. the device comprises a gas source, 2, a gas compressor, 3, a first pipeline, 4, a first control valve, 5, a second pipeline, 6, a second control valve, 7, a pressure regulating valve, 8, a distributor, 9, a gas flow accelerating sprayer, 10 and a compressed gas cache tank.
Detailed Description
The following describes in detail embodiments of an apparatus and a method for cleaning deposits in a carbon nanotube fluidized bed reactor according to the present invention with reference to the accompanying drawings.
As shown in fig. 1, the device for cleaning deposits in a carbon nanotube fluidized bed reactor according to the present invention comprises: distributor 8, the gas flow that sets up on distributor 8 accelerates shower nozzle 9, gas compressor 2 and compressed gas buffer memory jar 10, and gas compressor 2's air inlet links to each other with air supply 1, gas compressor 2's gas outlet through first pipeline 3 and the cluster establish in first pipeline 3 first control valve 4 with compressed gas buffer memory jar 10's air inlet links to each other, compressed gas buffer memory jar 10's gas outlet through second pipeline 5 and in proper order cluster establish in second pipeline 5 second control valve 6 and air-vent valve 7 with distributor 8 link to each other. In this embodiment, the gas source 1 is an inert gas or a carrier gas for a carbon nanotube fluidized bed reactor.
The invention relates to a method for cleaning attachments in a carbon nano tube fluidized bed reactor, which adopts an attachment cleaning device in the carbon nano tube fluidized bed reactor, and comprises the following specific steps:
1) preparing compressed gas: opening the first control valve 4, closing the second control valve 6, sending the gas source 1 into the compressed gas cache tank 10 through the gas compressor 2 to form compressed gas, and stopping the gas compressor 2 when the gas pressure of the compressed gas in the compressed gas cache tank 10 is 0.7-0.8 Mpa;
2) when the device is used, the second control valve 6 is opened, the air pressure of compressed air entering the distributor 8 is regulated to 0.4-0.5 Mpa through the pressure regulating valve 7, the compressed air is sprayed out from the airflow accelerating nozzle 9 through the distributor 8, the air speed of the airflow accelerating nozzle 9 is not less than 60m/s, and parts which are easy to generate attachments in the carbon nanotube fluidized bed reactor are cleaned; when the pressure of the compressed gas in the compressed gas cache tank 10 is lower than 0.6Mpa, the gas compressor 2 is opened, the gas source is continuously injected into the compressed gas cache tank 10, and when the pressure of the compressed gas in the compressed gas cache tank 10 reaches between 0.7 and 0.8Mpa, the gas compressor 2 is stopped.
In summary, the present invention is only a preferred embodiment, and not intended to limit the scope of the invention, and all equivalent changes and modifications made in the shape, structure, characteristics and spirit of the present invention described in the claims should be included in the scope of the present invention.
Claims (5)
1. An attachment cleaning apparatus in a carbon nanotube fluidized bed reactor, comprising: distributor and the air current of setting on the distributor shower nozzle with higher speed, its characterized in that: the attachment cleaning device in the carbon nanotube fluidized bed reactor further comprises: gas compressor and compressed gas buffer tank, gas compressor's air inlet links to each other with the air supply, gas compressor's gas outlet through first pipeline and cluster establish first control valve in first pipeline with compressed gas buffer tank's air inlet links to each other, compressed gas buffer tank's gas outlet through the second pipeline and in proper order cluster establish second control valve and the air-vent valve in the second pipeline with the distributor link to each other.
2. The apparatus for cleaning deposits in a carbon nanotube fluidized-bed reactor according to claim 1, wherein: the gas source is inert gas or carrier gas used by the carbon nano tube fluidized bed reactor.
3. A method for cleaning attachments in a carbon nanotube fluidized bed reactor, which adopts the attachment cleaning device in the carbon nanotube fluidized bed reactor of claim 1, and comprises the following specific steps:
1) preparing compressed gas: opening the first control valve, closing the second control valve, injecting a gas source into the compressed gas cache tank through the gas compressor to form compressed gas, and stopping the gas compressor when the pressure of the compressed gas in the compressed gas cache tank is more than or equal to 0.7 Mpa;
2) when the device is used, the second control valve is opened, the pressure of compressed gas entering the distributor is regulated to 0.4-0.5 Mpa through the pressure regulating valve, the compressed gas is sprayed out from the airflow accelerating nozzle through the distributor, and the part, which is easy to generate attachments, in the carbon nanotube fluidized bed reactor is cleaned; and when the pressure of the compressed gas in the compressed gas cache tank is lower than 0.6Mpa, the gas compressor is started, the gas source is continuously injected into the compressed gas cache tank, and when the pressure of the compressed gas in the compressed gas cache tank is more than or equal to 0.7Mpa, the gas compressor is stopped.
4. The apparatus for cleaning deposits in a carbon nanotube fluidized-bed reactor according to claim 3, wherein: and controlling the pressure of the compressed gas in the compressed gas buffer tank to be below 0.8 Mpa.
5. The apparatus for cleaning deposits in a carbon nanotube fluidized-bed reactor according to claim 3 or 4, wherein: the air speed of the air flow accelerating nozzle is more than or equal to 60 m/s.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021104617443 | 2021-04-27 | ||
| CN202110461744 | 2021-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113368789A true CN113368789A (en) | 2021-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110746189.9A Pending CN113368789A (en) | 2021-04-27 | 2021-07-01 | Device and method for cleaning attachments in carbon nanotube fluidized bed reactor |
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| CN (1) | CN113368789A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002267141A (en) * | 2001-03-08 | 2002-09-18 | Kawasaki Heavy Ind Ltd | Method and device for removing clinging matter from fluidized bed |
| CN206935973U (en) * | 2017-06-26 | 2018-01-30 | 福建南方路面机械有限公司 | A kind of auto cleaning system applied to mixer |
| CN210676264U (en) * | 2019-08-23 | 2020-06-05 | 杭州国光药业股份有限公司 | Fluidized bed |
| CN212041897U (en) * | 2019-12-19 | 2020-12-01 | 杭州斯坦尼新材料有限公司 | Cyclone cleaning device for mortar production line |
| CN212238520U (en) * | 2020-04-28 | 2020-12-29 | 新疆中泰创新技术研究院有限责任公司 | Closed online cleaning device and polymerization kettle |
-
2021
- 2021-07-01 CN CN202110746189.9A patent/CN113368789A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002267141A (en) * | 2001-03-08 | 2002-09-18 | Kawasaki Heavy Ind Ltd | Method and device for removing clinging matter from fluidized bed |
| CN206935973U (en) * | 2017-06-26 | 2018-01-30 | 福建南方路面机械有限公司 | A kind of auto cleaning system applied to mixer |
| CN210676264U (en) * | 2019-08-23 | 2020-06-05 | 杭州国光药业股份有限公司 | Fluidized bed |
| CN212041897U (en) * | 2019-12-19 | 2020-12-01 | 杭州斯坦尼新材料有限公司 | Cyclone cleaning device for mortar production line |
| CN212238520U (en) * | 2020-04-28 | 2020-12-29 | 新疆中泰创新技术研究院有限责任公司 | Closed online cleaning device and polymerization kettle |
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Application publication date: 20210910 |
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