CN106099238A - A kind of recovery method of waste secondary battery ferrum - Google Patents
A kind of recovery method of waste secondary battery ferrum Download PDFInfo
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- CN106099238A CN106099238A CN201610715861.7A CN201610715861A CN106099238A CN 106099238 A CN106099238 A CN 106099238A CN 201610715861 A CN201610715861 A CN 201610715861A CN 106099238 A CN106099238 A CN 106099238A
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- ferrum
- secondary battery
- waste secondary
- waste
- tossing
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 239000002699 waste material Substances 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000011084 recovery Methods 0.000 title claims abstract description 27
- 239000008187 granular material Substances 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 20
- 238000007885 magnetic separation Methods 0.000 claims abstract description 19
- 239000003792 electrolyte Substances 0.000 claims description 11
- 230000010355 oscillation Effects 0.000 claims description 9
- 238000002635 electroconvulsive therapy Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000005245 sintering Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 2
- 229910018095 Ni-MH Inorganic materials 0.000 claims description 2
- 229910018477 Ni—MH Inorganic materials 0.000 claims description 2
- 229910001416 lithium ion Inorganic materials 0.000 claims description 2
- 238000010298 pulverizing process Methods 0.000 abstract description 26
- 238000000926 separation method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 5
- 239000000047 product Substances 0.000 abstract description 4
- 238000012958 reprocessing Methods 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 3
- 239000007795 chemical reaction product Substances 0.000 abstract description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 17
- 229910052744 lithium Inorganic materials 0.000 description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 14
- 229910052782 aluminium Inorganic materials 0.000 description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 13
- 229910052802 copper Inorganic materials 0.000 description 9
- 239000010949 copper Substances 0.000 description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 7
- 229910052739 hydrogen Inorganic materials 0.000 description 7
- 239000001257 hydrogen Substances 0.000 description 7
- 239000002923 metal particle Substances 0.000 description 7
- 229910052759 nickel Inorganic materials 0.000 description 7
- 238000012216 screening Methods 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 239000000428 dust Substances 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 239000003960 organic solvent Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 3
- 239000006148 magnetic separator Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000011257 shell material Substances 0.000 description 1
- 239000000126 substance Substances 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- 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)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Metallurgy (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to the recovery method of a kind of battery, particularly relate to the recovery method of a kind of waste secondary battery ferrum.It is good that the technical problem to be solved in the present invention is to provide a kind of battery crushing effect, and the organic efficiency of ferrum is high, the recovery method of impure few waste secondary battery ferrum.The method by electric discharge, roasting, crush, pulverize, sieve, the mode such as tossing and magnetic separation, obtain end product ferrum, it is achieved thereby that the recovery of ferrum and utilization.The present invention is compared with prior art, carry out second-time breakage, so that the crushing efficiency of waste secondary battery is greatly improved, make the granule after crushing more uniform, add follow-up pulverizing, the separation making each material is more thorough, show that the impurity of product ferrum is few, simultaneously as the separation that second-time breakage and follow-up pulverizing make each material is more thorough, just magnetic separation can directly be carried out, organic efficiency is high, owing to impurity is few, it is also possible to be directly used in reprocessing, without the operation of follow-up cleaning, the handling process being greatly simplified.
Description
Technical field
The present invention relates to the recovery method of a kind of battery, particularly relate to the recovery method of a kind of waste secondary battery ferrum.
Background technology
Secondary cell, due to good characteristics such as its energy density is high, lightweight, life-span length, is widely used in mobile phone, pen
Remembering the means of communication such as this computer, digital camera and digital electronic goods and the field such as electric tool, electric automobile, China becomes
The secondary cell production and consumption state that the whole world is maximum.
In waste secondary battery, positive electrode is positive powder and aluminium foil, and negative material is carbon dust and Copper Foil, and shell is ferrum
Shell；Iron-clad therein can wait other process to reclaim through broken, for the recovery of ferrum class, will carry out not according to concrete segmentation
Same process and application, can carry out melting down reproducing by ferrum in most cases, produces recycling, and the recycling of this recovery ferrum is
Through quite ripe.
The waste and old ni-mh carried out under existing mode and the processing mode of lithium battery use and first crushes the place's science and engineering burned afterwards
Skill, due to the closely carbon dust of consolidation and Organic substance and the existence of electrolyte in battery, when causing broken, efficiency is low, and many materials are also
It is bonded together, it is impossible to well separate, affects the steps such as follow-up screening, meanwhile, because the bonding of material makes to screen out
End product often also have a lot of impurity, grade but, affects the reprocessing in later stage.
Therefore, the problems referred to above run in the recovery for waste secondary battery ferrum now, it is provided that a kind of battery crushing effect
The best, the organic efficiency of ferrum recovery method high, impure few waste secondary battery ferrum seems more to come under current situation
The most urgent.
Summary of the invention
(1) to solve the technical problem that
The present invention, in order to overcome under prior art battery crushing weak effect in the recovery method of waste secondary battery ferrum, causes
The organic efficiency of ferrum is low, shortcoming containing a large amount of impurity, and the technical problem to be solved in the present invention is to provide a kind of battery crushing effect
Good, the organic efficiency of ferrum is high, the recovery method of impure few waste secondary battery ferrum.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides the recovery method of such a waste secondary battery ferrum, tool
Body comprises the following steps:
A. waste secondary battery is discharged, the remaining capacity in waste secondary battery is fully put only；
B. the waste secondary battery after electric discharge being carried out roasting, sintering temperature is 700 DEG C-900 DEG C, and roasting time is 1.5-
2.5 hours, by organic solvent labile in waste secondary battery and electrolyte heat resolve and release；
C. the waste secondary battery after roasting is crushed, then pulverize, by broken, waste secondary battery is divided
Solution becomes little granule, is refined further by granule by pulverizing, and makes the different material Separate With Friction wherein adhered to each other；
D. the material after pulverizing sieves, and screening out characteristic size is 0.5-2mm and two kinds of sizes more than 2mm
Granule, according to the size of shaped particles, in the granule after pulverizing, the characteristic size granule less than 0.5mm is positive powder and carbon dust
Mixture, in the granule after pulverizing characteristic size be the granule of 0.5-2mm be rubbed ferrum, aluminum and the copper metal refined
Grain, in the granule after pulverizing, the characteristic size granule more than 2mm is oarse-grained ferrum, aluminum and copper metal particle, for reclaiming ferrum
Having only to screen out characteristic size is 0.5-2mm and the granule of two kinds of sizes more than 2mm, for characteristic size less than 0.5mm
Granule, can separately do other use；
E. the granule that the characteristic size screened out is 0.5-2mm being carried out tossing, the frequency of tossing is 0.5-5Hz, tossing
Oscillation amplitude be 10-20mm, the aluminum in hybrid particles can be sorted out by tossing, residue ferrum and copper part, so,
The aluminum of tossing gained can be removed for reclaiming ferrum, can separately do other use, leave residue ferrum and copper part, then will residue
Ferrum and copper part carry out magnetic separation I, obtain ferrum I, i.e. realize having reclaimed part ferrum, remaining copper can remove and separately do other and use
Place；
F., the granule that the characteristic size screened out is more than 2mm carries out magnetic separation II, can be by hybrid particles by magnetic separation II
In ferrum II sort out, residual Al and copper part can carry out removing separately doing other use, and the ferrum I and the ferrum II that obtain are back
Receive gained ferrum.
Preferably, the electric discharge in step a, for waste secondary battery being put in the groove filling electrolyte, make in battery
Remaining capacity is put only.
Preferably, crushing in step c, for being undertaken in two steps by the waste secondary battery after roasting, the first step is for carrying out
Cutting process, cuts waste secondary battery, and waste secondary battery, for carrying out shock treatment, is rushed broken by second step.
Preferably, the pulverizing in step c, pulverize for the battery after being crushed by ball mill.
Preferably, the tossing in step e, the mode of oscillation of tossing is reciprocating, the cross fall of tossing is 1.5 °-
3.5°。
Preferably, waste secondary battery is Ni-MH battery or lithium ion battery.
(3) beneficial effect
The present invention compared with prior art, has carried out second-time breakage, so that the crushing efficiency of waste secondary battery is significantly
Improving, make the granule after crushing more uniform, and add follow-up pulverization process, the separation making each material is more thorough,
Make the product iron tramp finally drawn few, simultaneously as the separation that second-time breakage and follow-up pulverizing make each material is more thorough,
For reclaiming ferrum, just can directly carry out magnetic separation, convenient and reliable, organic efficiency is high, and the ferrum reclaimed for magnetic separation, due to miscellaneous
Matter is few, it is also possible to be directly used in reprocessing, it is not necessary to the operation of follow-up cleaning, the handling process being greatly simplified.
Electric discharge in step a, for being put into by waste secondary battery in the groove filling electrolyte, makes the remaining capacity in battery
Put clean, the electricity in waste secondary battery fully can be put only by this method, make subsequent job safer.
Crushing in step c, for being undertaken in two steps by the waste secondary battery after roasting, the first step is for carrying out cut place
Reason, cuts waste secondary battery, and waste secondary battery, for carrying out shock treatment, is rushed broken by second step, by being undertaken in two steps
Crush and meanwhile, the granule after crushing can be made more uniform by broken for waste secondary battery more thorough, follow-up
Pulverize and the process of screening so that the organic efficiency going out product ferrum is high, impure few.
Preferably, the pulverizing in step c, pulverize for the battery after being crushed by ball mill, entered by ball mill
Row ball mill pulverizing can make the separation of each material more thoroughly, the process of follow-up screening, and by improving separation efficiency,
Strengthen the purity that each material finally reclaims.
Accompanying drawing explanation
Fig. 1 is the process chart of the present invention.
Detailed description of the invention
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of recovery method of waste secondary battery ferrum, as it is shown in figure 1, specifically include following steps:
A. waste nickel hydrogen battery is put in the groove filling electrolyte, make the remaining capacity in waste nickel hydrogen battery fully put
Only；
B. the waste nickel hydrogen battery after electric discharge is sent into rotary kiln combustion chamber roasting, sintering temperature 700 DEG C, roasting uniformly
2.5 hours time, by organic solvent labile in waste nickel hydrogen battery and electrolyte heat resolve and release；
C. the waste nickel hydrogen battery after roasting is first carried out preliminary cutting process with standing crusher, by waste and old ni-mh electricity
Pond is cut, then carries out deep shock treatment by cyclopentane gas detector, is thoroughly torn up by waste nickel hydrogen battery, then, with energy-conservation then
Ball mill is pulverized, and is pulverized by different material therein and separates；
D. the double-deck linear vibrating screen of material after pulverizing sieves, and screening out characteristic size is that 0.5-2mm is with big
In the granule of two kinds of sizes of 2mm, in the granule after pulverizing, the characteristic size granule less than 0.5mm is the mixed of positive powder and carbon dust
Compound, in the granule after pulverizing characteristic size be the granule of 0.5-2mm be rubbed ferrum, aluminum and the copper metal particle refined,
In granule after pulverizing, the characteristic size granule more than 2mm is oarse-grained ferrum, aluminum and copper metal particle, only needs for reclaiming ferrum
Characteristic size to be screened out is 0.5-2mm and the granule of two kinds of sizes more than 2mm, for characteristic size less than 0.5mm
Grain, can separately do other use；
E. air table separator is utilized to carry out tossing the granule that the characteristic size screened out is 0.5-2mm, tossing
Frequency is 0.5Hz, and the oscillation amplitude of tossing is 20mm, and the mode of oscillation of tossing is reciprocating, and the cross fall of tossing is 3.5 °,
Tossing gained is aluminum, can separately do other use, be removed by tossing gained, leave remainder, then remainder is utilized magnetic
Select machine to carry out magnetic separation I, obtain ferrum I；
F., the granule that the characteristic size screened out is more than 2mm utilizes magnetic separator to carry out magnetic separation II, obtains ferrum II, obtains
Ferrum I and ferrum II are recovery gained ferrum.
Processed by above-mentioned steps, and pass through detection and weigh, obtain related data: process front waste nickel hydrogen battery
The total content of interior ferrum is 3.56Kg, obtains 3.53Kg through processing final discharging, and the grade of gained ferrum is 95.5%, must tap a blast furnace
The response rate is 94.8%.
Embodiment 2
A kind of recovery method of waste secondary battery ferrum, as it is shown in figure 1, specifically include following steps:
A. waste lithium cell is put in the groove filling electrolyte, make the remaining capacity in waste lithium cell fully put only；
B. the waste lithium cell after electric discharge being sent into rotary kiln combustion chamber roasting uniformly, sintering temperature 900 DEG C, during roasting
Between 1.5 hours, by organic solvent labile in waste lithium cell and electrolyte heat resolve and release；
C. the waste lithium cell after roasting is first carried out preliminary cutting process with standing crusher, waste lithium cell is cut
Open, then carry out deep shock treatment by cyclopentane gas detector, waste lithium cell is thoroughly torn up, then, then use energy-saving ball mill
Pulverize, different material therein is pulverized and separates；
D. the double-deck linear vibrating screen of material after pulverizing sieves, and screening out characteristic size is that 0.5-2mm is with big
In the granule of two kinds of sizes of 2mm, in the granule after pulverizing, the characteristic size granule less than 0.5mm is the mixed of positive powder and carbon dust
Compound, in the granule after pulverizing characteristic size be the granule of 0.5-2mm be rubbed ferrum, aluminum and the copper metal particle refined,
In granule after pulverizing, the characteristic size granule more than 2mm is oarse-grained ferrum, aluminum and copper metal particle, only needs for reclaiming ferrum
Characteristic size to be screened out is 0.5-2mm and the granule of two kinds of sizes more than 2mm, for characteristic size less than 0.5mm
Grain, can separately do other use；
E. air table separator is utilized to carry out tossing the granule that the characteristic size screened out is 0.5-2mm, tossing
Frequency is 3Hz, and the oscillation amplitude of tossing is 15mm, and the mode of oscillation of tossing is reciprocating, and the cross fall of tossing is 2.5 °, shakes
Selecting gained is aluminum, can separately do other use, be removed by tossing gained, leave remainder, then remainder is utilized magnetic separation
Machine carries out magnetic separation I, obtains ferrum I；
F., the granule that the characteristic size screened out is more than 2mm utilizes magnetic separator to carry out magnetic separation II, obtains ferrum II, obtains
Ferrum I and ferrum II are recovery gained ferrum.
Processed by above-mentioned steps, and by detection and weighing, obtain related data: before processing in waste lithium cell
The total content of ferrum is 3.29Kg, obtains 3.24Kg through processing final discharging, and the grade of gained ferrum is 96.9%, and must tap a blast furnace returns
Yield is 95.4%.
Embodiment 3
A kind of recovery method of waste secondary battery ferrum, as it is shown in figure 1, specifically include following steps:
A. waste lithium cell is put in the groove filling electrolyte, make the remaining capacity in waste lithium cell fully put only；
B. the waste lithium cell after electric discharge being sent into rotary kiln combustion chamber roasting uniformly, sintering temperature 800 DEG C, during roasting
Between 2 hours, by organic solvent labile in waste lithium cell and electrolyte heat resolve and release；
C. the waste lithium cell after roasting is first carried out preliminary cutting process with standing crusher, waste lithium cell is cut
Open, then carry out deep shock treatment by cyclopentane gas detector, waste lithium cell is thoroughly torn up, then, then use energy-saving ball mill
Pulverize, different material therein is pulverized and separates；
D. the double-deck linear vibrating screen of material after pulverizing sieves, and screening out characteristic size is that 0.5-2mm is with big
In the granule of two kinds of sizes of 2mm, in the granule after pulverizing, the characteristic size granule less than 0.5mm is the mixed of positive powder and carbon dust
Compound, in the granule after pulverizing characteristic size be the granule of 0.5-2mm be rubbed ferrum, aluminum and the copper metal particle refined,
In granule after pulverizing, the characteristic size granule more than 2mm is oarse-grained ferrum, aluminum and copper metal particle, only needs for reclaiming ferrum
Characteristic size to be screened out is 0.5-2mm and the granule of two kinds of sizes more than 2mm, for characteristic size less than 0.5mm
Grain, can separately do other use；
E. air table separator is utilized to carry out tossing the granule that the characteristic size screened out is 0.5-2mm, tossing
Frequency is 5Hz, and the oscillation amplitude of tossing is 10mm, and the mode of oscillation of tossing is reciprocating, and the cross fall of tossing is 1.5 °, shakes
Selecting gained is aluminum, can separately do other use, be removed by tossing gained, leave remainder, then remainder is utilized magnetic separation
Machine carries out magnetic separation I, obtains ferrum I；
F., the granule that the characteristic size screened out is more than 2mm utilizes magnetic separator to carry out magnetic separation II, obtains ferrum II, obtains
Ferrum I and ferrum II are recovery gained ferrum.
Processed by above-mentioned steps, and by detection and weighing, obtain related data: before processing in waste lithium cell
The total content of ferrum is 3.87Kg, obtains 3.84Kg through processing final discharging, and the grade of gained ferrum is 95.1%, and must tap a blast furnace returns
Yield is 94.3%.
By data above, the process technique of above-mentioned waste secondary battery, it is possible to waste secondary battery is had
The recycling of effect, and the present invention is compared with prior art, has carried out second-time breakage, so that waste secondary battery is broken
Efficiency is greatly improved, and makes the granule after crushing more uniform, and adds follow-up pulverization process, makes the separation of each material more
Add thoroughly, make the product iron tramp finally drawn few, simultaneously as second-time breakage and follow-up pulverizing make the separation of each material more
Adding thoroughly, for reclaiming ferrum, just can directly carry out magnetic separation, convenient and reliable, organic efficiency is high, and magnetic separation is reclaimed
Ferrum, owing to impurity is few, it is also possible to be directly used in reprocessing, it is not necessary to the operation of follow-up cleaning, the handling process being greatly simplified.
Embodiment described above only have expressed the preferred embodiment of the present invention, and it describes more concrete and detailed, but also
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that, for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, it is also possible to making some deformation, improve and substitute, these broadly fall into this
Bright protection domain.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (6)
1. the recovery method of a waste secondary battery ferrum, it is characterised in that specifically include following steps:
A. waste secondary battery is discharged；
B. the waste secondary battery after electric discharge being carried out roasting, sintering temperature is 700 DEG C-900 DEG C, and roasting time is 1.5-2.5
Hour；
C. the waste secondary battery after roasting is crushed, then pulverize；
D. will pulverize after material sieve, screen out characteristic size be 0.5-2mm and more than 2mm two kinds of sizes
Grain；
E. the granule that the characteristic size screened out is 0.5-2mm being carried out tossing, the frequency of tossing is 0.5-5Hz, shaking of tossing
The amplitude of swinging is 10-20mm, is removed by tossing gained, leaves remainder, then remainder is carried out magnetic separation I, obtain ferrum I；
F., the granule that the characteristic size screened out is more than 2mm carries out magnetic separation II, obtains ferrum II.
The recovery method of a kind of waste secondary battery ferrum the most according to claim 1, it is characterised in that putting in step a
Electricity, for being put into by waste secondary battery in the groove filling electrolyte, makes the remaining capacity in battery put only.
The recovery method of a kind of waste secondary battery ferrum the most according to claim 1, it is characterised in that breaking in step c
Broken, for being undertaken in two steps by the waste secondary battery after roasting, waste secondary battery, for carrying out cutting process, is cut by the first step
Opening, waste secondary battery, for carrying out shock treatment, is rushed broken by second step.
The recovery method of a kind of waste secondary battery ferrum the most according to claim 1, it is characterised in that the powder in step c
Broken, pulverize for the battery after being crushed by ball mill.
The recovery method of a kind of waste secondary battery ferrum the most according to claim 1, it is characterised in that shaking in step e
Choosing, the mode of oscillation of tossing is reciprocating, and the cross fall of tossing is 1.5 °-3.5 °.
The recovery method of a kind of waste secondary battery ferrum the most according to claim 1, it is characterised in that waste secondary battery
For Ni-MH battery or lithium ion battery.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610715861.7A CN106099238A (en) | 2016-08-24 | 2016-08-24 | A kind of recovery method of waste secondary battery ferrum |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610715861.7A CN106099238A (en) | 2016-08-24 | 2016-08-24 | A kind of recovery method of waste secondary battery ferrum |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106920999A (en) * | 2017-04-01 | 2017-07-04 | 中航锂电（洛阳）有限公司 | A kind of recovery method of anode material for lithium-ion batteries |
| CN107293817A (en) * | 2017-06-08 | 2017-10-24 | 深圳市恒创睿能环保科技有限公司 | A kind of waste and old lithium ion battery each component is efficiently dissociated and classified reclaiming method |
| CN107492695A (en) * | 2017-07-17 | 2017-12-19 | 中航锂电（洛阳）有限公司 | The separation method of positive/negative plate in a kind of lithium ion battery removal process |
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| CN115483466B (en) * | 2022-08-29 | 2025-09-30 | 广东邦普循环科技有限公司 | Method for recycling and pretreatment of waste lithium-ion batteries |
| CN115901404A (en) * | 2023-01-05 | 2023-04-04 | 福安青美能源材料有限公司 | Method for separating metal foreign matters in lithium battery material |
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