CN110380148A - A kind of electrification lithium battery dissolution cracking recovery process - Google Patents
A kind of electrification lithium battery dissolution cracking recovery process Download PDFInfo
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- CN110380148A CN110380148A CN201910562135.XA CN201910562135A CN110380148A CN 110380148 A CN110380148 A CN 110380148A CN 201910562135 A CN201910562135 A CN 201910562135A CN 110380148 A CN110380148 A CN 110380148A
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- China
- Prior art keywords
- anaerobic
- positive
- lithium battery
- negative anodes
- recovery process
- Prior art date
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Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 28
- 238000011084 recovery Methods 0.000 title claims abstract description 19
- 238000005336 cracking Methods 0.000 title claims abstract description 18
- 238000004090 dissolution Methods 0.000 title claims description 16
- 239000000843 powder Substances 0.000 claims abstract description 43
- 239000002904 solvent Substances 0.000 claims abstract description 28
- 239000003792 electrolyte Substances 0.000 claims abstract description 25
- 239000008151 electrolyte solution Substances 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 239000004033 plastic Substances 0.000 claims abstract description 11
- 239000004568 cement Substances 0.000 claims abstract description 10
- 238000007885 magnetic separation Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 20
- 239000012716 precipitator Substances 0.000 claims description 10
- 238000000197 pyrolysis Methods 0.000 claims description 9
- 238000012216 screening Methods 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000000354 decomposition reaction Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 10
- 239000007767 bonding agent Substances 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 23
- 238000005868 electrolysis reaction Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/54—Reclaiming serviceable parts of waste accumulators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to a kind of electrification lithium batteries to dissolve cracking recovery process, the present invention is added in anaerobic dissolvers after being crushed lithium battery, electrolyte solution is dissolved in into electrolyte solvent and is discharged, electrolyte solvent is volatilized by heating volatilization simultaneously and is discharged, thoroughly electrolyte solution is removed, positive and negative anodes powder lacks the medium of exoelectrical reaction, exoelectrical reaction will not be generated during subsequent sifting sort, improve the recycling purity of positive and negative anodes powder, reduce recovery difficult, the subsequent positive and negative anodes powder by selection by winnowing and magnetic separation, big granularity positive/negative plate and plastic cement carry out high temperature anaerobic cracking, by the bonding agent heating and gasifying in plastic cement and positive and negative anodes powder and outlet passes in and out exhaust-gas treatment, further improve the purity of positive and negative anodes powder.
Description
Technical field
The present invention relates to the technical field of lithium battery, in particular to a kind of electrification lithium battery dissolution cracking recovery process.
Background technique
Now country energetically advocate lithium battery application, gradually eliminate lead-acid battery, if but lithium battery do not obtain
Effective recycle will also result in very big resource waste and pollution, and the positive and negative anodes powder in lithium battery is most to recycle valence
Value is also the material for being most difficult to recycling simultaneously, and due to the presence of electrolyte solution, positive and negative anodes powder is very easy to produce in removal process
Raw exoelectrical reaction, this makes a big impact for the sifting sort recycling of lithium battery entirety, and positive and negative anodes powder is to pass through bonding
Agent be bonded it is blocking, positive and negative anodes powder recycle when can contain micro bonding agent and plastic powder.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of electrification lithium batteries to dissolve cracking recovery process.
The technical scheme is that a kind of electrification lithium battery dissolution cracking recovery process, comprising the following steps:
1) closed anaerobic crusher, is added by anaerobic vacuum feed in electrification lithium battery；
2), broken material, which is discharged and passes through anaerobic friction by closing wind discharge, is transported to closed anaerobic dissolvers, anaerobic
Being added in dissolvers has electrolyte solvent；
3), after a period of time, the electrolyte solvent for dissolving in electrolyte solution is discharged from anaerobic dissolvers, then dissolves anaerobic
Material in device is by being discharged to closed hot volatilizer outside anaerobic；
4), the material in hot volatilizer enters selection by winnowing magnetic separation combined machine by closing wind feeding after heating volatilization；
5), selection by winnowing magnetic separation combined machine filters out iron block, plastic film, piece of stainless steel, copper billet, aluminium block and the shell in material, and will
Remaining positive and negative anodes powder and plastic cement pass through anaerobic pyrolysis furnace progress Pintsch process；
6), plastic cement is gasified and carry out exhaust-gas treatment is discharged by anaerobic pyrolysis furnace, and remaining positive and negative anodes powder passes through cooling friction feeding
It is screened to screening machine, filters out the positive/negative plate of positive and negative anodes powder and big granularity；
7), the positive/negative plate of remaining big granularity carries out carrying out friction decomposition by high-speed friction disassembler；
8), the material after decomposition is collected by tornado feeder set, and the material collected is screened again by screening machine, screening
Positive and negative anodes powder and copper aluminum shot out.
Further, the anaerobic crusher, be passed through protection gas in the anaerobic dissolvers.
Further, it in step 2, carries out being passed through protection gas when closing wind discharge and anaerobic friction conveying.
Further, in step 3), protection gas is passed through when carrying out anaerobic outlet.
Further, the high temperature protection gas that the hot volatilizer is passed through is heated.
Further, it is filtered from the electrolyte solvent that anaerobic dissolvers is discharged by filter, the electrolysis filtered out
Matter solvent is collected preparation and recycles, and the positive and negative anodes powder filtered out carries out heating volatilization, and nothing is added in the positive and negative anodes powder after volatilization
Oxygen pyrolysis furnace, gas when the heating volatilization of positive and negative anodes powder in the gas that volatilizes and step 4) in hot volatilizer at volatilization together into
Enter condenser to be condensed, the liquid being condensed out is electrolyte solvent, and remaining gas is protection gas, is collected preparation respectively
It recycles.
Further, dust-precipitator is connected between the tornado feeder set and blower.
Further, the air outlet of the air inlet of the blower and dust-precipitator connects, the air inlet of the dust-precipitator and rotation
The air outlet of wind loading head connects.
Further, the air outlet of the blower is switched to high-speed friction disassembler.
Further, the copper aluminum shot filtered out is separated by gravity separation, isolates copper particle and aluminum shot.
The beneficial effects of the present invention are:
The present invention is added in anaerobic dissolvers after being crushed lithium battery, and electrolyte solution is dissolved in electrolyte solvent and is discharged, together
When by heating volatilization by electrolyte solvent volatilize be discharged, thoroughly electrolyte solution is removed, positive and negative anodes powder lacks exoelectrical reaction
Medium, exoelectrical reaction will not be generated during subsequent sifting sort, the recycling purity of positive and negative anodes powder is improved, reduces back
Receive difficulty.
The present invention will also carry out high temperature anaerobic by the positive and negative anodes powder, big granularity positive/negative plate and plastic cement of selection by winnowing and magnetic separation and split
Solution, by the bonding agent heating and gasifying in plastic cement and positive and negative anodes powder and outlet passes in and out exhaust-gas treatment, further improves positive and negative anodes powder
Purity.
The present invention lithium battery is broken, keep closing in transmission process and is passed through protection gas, will not be crushed again in this way with it is defeated
Exoelectrical reaction is caused during sending.
Electrolyte solvent and protection gas in the present invention can also recycle collection and recycle, and save the energy.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
A specific embodiment of the invention is referring to Fig. 1
A kind of electrification lithium battery dissolution cracking recovery process, comprising the following steps:
1) electrification lithium battery is added by anaerobic vacuum feed, and is passed through protection gas and closed anaerobic crusher, carries out anaerobic
It is dosing when vacuum is fed；
2), broken material, which is discharged by closing wind discharge and passes through anaerobic friction and be transported to, is passed through protection gas and closed anaerobic
Dissolvers, anaerobic dissolvers is interior to be added qs Electrolyte solvent, carries out being passed through protection gas when closing wind discharge and anaerobic friction conveying,
In this way exoelectrical reaction will not be caused in broken and transmission process；
3), after a period of time, the electrolyte solvent for dissolving in electrolyte solution is discharged from anaerobic dissolvers, then dissolves anaerobic
By being discharged to closed hot volatilizer outside anaerobic, the high temperature protection gas that hot volatilizer is passed through is heated material in device,
Electrolyte solution is dissolved in into electrolyte solvent in anaerobic dissolvers and is discharged, while waving electrolyte solvent by heating volatilization
Send a manuscript to the compositor out, thoroughly remove electrolyte solution, positive and negative anodes powder lacks the medium of exoelectrical reaction, during subsequent sifting sort not
Exoelectrical reaction can be generated, the recycling purity of positive and negative anodes powder is improved, reduces recovery difficult, the electrolysis being discharged from anaerobic dissolvers
Matter solvent is filtered by filter, and the electrolyte solvent filtered out is collected preparation and recycles, the positive and negative anodes filtered out
Powder carries out heating volatilization, and the positive and negative anodes powder after volatilization is collected, and the gas and heat that the heating of positive and negative anodes powder volatilizes when volatilizing are waved
Gas in hair device at volatilization enters condenser together and is condensed, and the liquid being condensed out is electrolyte solvent, remaining gas
To protect gas, it is collected preparation respectively and recycles, saves the energy；
4), the material in hot volatilizer enters selection by winnowing magnetic separation combined machine by closing wind feeding after heating volatilization；
5), selection by winnowing magnetic separation combined machine filters out iron block, plastic film, piece of stainless steel, copper billet, aluminium block and the shell in material, and will
Positive and negative anodes powder after volatilizing in remaining positive and negative anodes powder, plastic cement and step 3) carries out Pintsch process by anaerobic pyrolysis furnace；
6), by anaerobic pyrolysis furnace, by the bonding agent heating and gasifying in plastic cement and positive and negative anodes powder, simultaneously outlet carries out exhaust-gas treatment, into
One step improves the purity of positive and negative anodes powder, and remaining positive and negative anodes powder is screened by expecting that screening machine is screened in cooling friction
The positive/negative plate of positive and negative anodes powder and big granularity out；
7), the positive/negative plate of remaining big granularity carries out carrying out friction decomposition by high-speed friction disassembler；
8), the material after decomposition is collected by tornado feeder set, connects dust-precipitator between the tornado feeder set and blower,
The air inlet of the blower and the air outlet of dust-precipitator connect, and the air inlet of the dust-precipitator and the air outlet of tornado feeder set connect
It connects, the air outlet of the blower is switched to high-speed friction disassembler, and the material collected is screened again by screening machine, filters out
Positive and negative anodes powder and copper aluminum shot, copper aluminum shot are separated by gravity separation, isolate copper particle and aluminum shot.
When the present invention carries out dosing, the amount phase of the amount of feed and the capacity of anaerobic dissolvers and electrolyte solvent
Match；The present invention is in anaerobic crusher and carries out that electrolyte solvent can also be added when anaerobic conveying, increases electrolyte solution
Dissolution degree, electrolyte solution dissolve in electrolyte solvent, dilute electrolyte solution significantly, so that electrolyte solution is lost participation and put
The ability of electricity reaction, then will be discharged dissolved with the electrolyte solvent of electrolyte solution, so that material not can be carried out thoroughly in the present invention
Exoelectrical reaction；The present invention finally collects the positive and negative anodes powder of collection, obtains the positive and negative anodes powder of purity is high, and anaerobic cracks fire grate
Exhaust gas out is first cooled down, is gathered dust, and spray or activated carbon adsorption processing are then carried out.
Anaerobic crusher, anaerobic dissolvers, hot volatilizer, selection by winnowing magnetic separation combined machine, anaerobic pyrolysis furnace, height in the present invention
The equipment such as speed friction disassembler, tornado feeder set, dust-precipitator, blower, screening machine, specific gravity separator, filter are existing skill
Art is no longer described in detail, and the protection gas in the present invention uses carbon dioxide, nitrogen or other inert gases, electrolysis
Matter solvent uses water, ethyl alcohol or other polar solvents.
Claims (10)
1. a kind of electrification lithium battery dissolution cracking recovery process, it is characterised in that: the following steps are included:
1) closed anaerobic crusher, is added by anaerobic vacuum feed in electrification lithium battery；
2), broken material, which is discharged and passes through anaerobic friction by closing wind discharge, is transported to closed anaerobic dissolvers, anaerobic
Being added in dissolvers has electrolyte solvent；
3), after a period of time, the electrolyte solvent for dissolving in electrolyte solution is discharged from anaerobic dissolvers, then dissolves anaerobic
Material in device is by being discharged to closed hot volatilizer outside anaerobic；
4), the material in hot volatilizer enters selection by winnowing magnetic separation combined machine by closing wind feeding after heating volatilization；
5), selection by winnowing magnetic separation combined machine filters out iron block, plastic film, piece of stainless steel, copper billet, aluminium block and the shell in material, and will
Remaining positive and negative anodes powder and plastic cement pass through anaerobic pyrolysis furnace progress Pintsch process；
6), plastic cement is gasified and carry out exhaust-gas treatment is discharged by anaerobic pyrolysis furnace, and remaining positive and negative anodes powder passes through cooling friction feeding
It is screened to screening machine, filters out the positive/negative plate of positive and negative anodes powder and big granularity；
7), the positive/negative plate of remaining big granularity carries out carrying out friction decomposition by high-speed friction disassembler；
8), the material after decomposition is collected by tornado feeder set, and the material collected is screened again by screening machine, screening
Positive and negative anodes powder and copper aluminum shot out.
2. electrification lithium battery dissolution cracking recovery process according to claim 1, it is characterised in that: the anaerobic is broken
Protection gas is passed through in machine, the anaerobic dissolvers.
3. electrification lithium battery dissolution cracking recovery process according to claim 2, it is characterised in that: in step 2, into
Row is passed through protection gas when closing wind discharge and anaerobic friction conveying.
4. electrification lithium battery dissolution cracking recovery process according to claim 3, it is characterised in that: in step 3),
It carries out being passed through protection gas when anaerobic outlet.
5. electrification lithium battery dissolution cracking recovery process according to claim 4, it is characterised in that: the hot volatilizer is logical
The high temperature protection gas being passed through is crossed to be heated.
6. electrification lithium battery dissolution cracking recovery process according to claim 5, it is characterised in that: arranged from anaerobic dissolvers
Electrolyte solvent out is filtered by filter, and the electrolyte solvent filtered out is collected preparation and recycles, and is filtered out
Positive and negative anodes powder carry out heating volatilization, positive and negative anodes powder after volatilization is added anaerobic pyrolysis furnace, and when positive and negative anodes powder heating volatilization volatilizees
Gas in gas out and step 4) in hot volatilizer at volatilization enters condenser together and is condensed, and the liquid being condensed out is
Electrolyte solvent, remaining gas are protection gas, and electrolyte solvent and protection gas are collected preparation respectively and recycle.
7. electrification lithium battery dissolution cracking recovery process according to claim 6, it is characterised in that: the tornado feeder set
Dust-precipitator is connected between blower.
8. electrification lithium battery dissolution cracking recovery process according to claim 7, it is characterised in that: the air inlet of the blower
Mouth is connect with the air outlet of dust-precipitator, and the air inlet of the dust-precipitator and the air outlet of tornado feeder set connect.
9. electrification lithium battery dissolution cracking recovery process according to claim 8, it is characterised in that: the outlet air of the blower
Mouth is switched to high-speed friction disassembler.
10. electrification lithium battery dissolution cracking recovery process according to claim 9, it is characterised in that: the copper aluminium filtered out
Grain is separated by gravity separation, isolates copper particle and aluminum shot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910562135.XA CN110380148A (en) | 2019-06-26 | 2019-06-26 | A kind of electrification lithium battery dissolution cracking recovery process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910562135.XA CN110380148A (en) | 2019-06-26 | 2019-06-26 | A kind of electrification lithium battery dissolution cracking recovery process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110380148A true CN110380148A (en) | 2019-10-25 |
Family
ID=68249408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910562135.XA Pending CN110380148A (en) | 2019-06-26 | 2019-06-26 | A kind of electrification lithium battery dissolution cracking recovery process |
Country Status (1)
| Country | Link |
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| CN (1) | CN110380148A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108615956A (en) * | 2018-06-14 | 2018-10-02 | 河南巨峰环保科技有限公司 | A kind of electric discharge dynamic lithium battery recovery process |
| CN109193062A (en) * | 2018-10-29 | 2019-01-11 | 山西根复科技有限公司 | A kind of old and useless battery electrolyte recoverying and utilizing method |
-
2019
- 2019-06-26 CN CN201910562135.XA patent/CN110380148A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108615956A (en) * | 2018-06-14 | 2018-10-02 | 河南巨峰环保科技有限公司 | A kind of electric discharge dynamic lithium battery recovery process |
| CN108941161A (en) * | 2018-06-14 | 2018-12-07 | 河南巨峰环保科技有限公司 | A kind of physical recovering method technique of lithium battery |
| CN109193062A (en) * | 2018-10-29 | 2019-01-11 | 山西根复科技有限公司 | A kind of old and useless battery electrolyte recoverying and utilizing method |
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