CN114308347A - Automatic production line and process for extracting lithium battery anode - Google Patents
Automatic production line and process for extracting lithium battery anode Download PDFInfo
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- CN114308347A CN114308347A CN202210044517.5A CN202210044517A CN114308347A CN 114308347 A CN114308347 A CN 114308347A CN 202210044517 A CN202210044517 A CN 202210044517A CN 114308347 A CN114308347 A CN 114308347A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 40
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims description 25
- 230000008569 process Effects 0.000 title claims description 17
- 239000000428 dust Substances 0.000 claims abstract description 184
- 239000000463 material Substances 0.000 claims abstract description 67
- 238000012216 screening Methods 0.000 claims abstract description 58
- 238000012856 packing Methods 0.000 claims abstract description 31
- 238000000605 extraction Methods 0.000 claims abstract description 25
- 239000010405 anode material Substances 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 13
- 238000000746 purification Methods 0.000 abstract description 12
- 229910052751 metal Inorganic materials 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 abstract description 5
- 239000004411 aluminium Substances 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000004880 explosion Methods 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 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
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- 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
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Abstract
The invention relates to the technical field of lithium battery anode material recovery, and particularly discloses an automatic lithium battery anode extraction production line and an extraction process, wherein the automatic lithium battery anode extraction production line comprises a multistage screening unit and a dust removal unit; the multi-stage screening unit comprises a shredder, a first crusher and a first cyclone are sequentially arranged at the downstream of the shredder, and the dust removal unit comprises a first dust remover and a second dust remover; the invention adopts a plurality of physical automatic extraction units and synchronous conveying equipment to complete the whole classification and purification production line; through technologies such as shredding, smashing, screening by vibration, dust removal air-assisted transportation can separate purification and recovery the black powder of coating on the battery sheet material and the aluminium metal of mass flow body, and the whole flow from throwing the material to the material packing finished product all adopts dust collecting equipment to remove dust and can effectively prevent the dust from leaking outward, improves the high-efficient production performance of environmental protection, can high-efficiently solve new forms of energy power lithium battery material circulation economic benefits problem.
Description
Technical Field
The invention relates to the technical field of lithium battery anode material recovery, in particular to an automatic production line for lithium battery anode extraction.
Background
At present, new energy automobile projects are vigorously developed in China, the mass yield of power lithium batteries is increased, the supply of required metal elements is short, and the recycling plates play a greater role. The purification department of the prior art on the market simply leaks, and the butt joint of each process step in the production process is not sealed and produces a large amount of dust leakage, makes the loss of a large amount of metallic elements, has direct harm to the long-term work of workshop personnel, has certain harm to peripheral environmental protection, can also arouse dangerous hidden dangers such as explosion when space dust density is too high. The separation of the work part is lack of refinement, the purity of the extracted material is low, the extracted material contains a large amount of doped elements, the magnetic substance exceeds the standard and the like, and certain difficulty is brought to the aspect of recycling application. In order to better integrate resources, reduce resource loss, improve continuous recycling of materials and effectively recycle resources, the automatic production line for extracting the lithium battery anode is developed.
Disclosure of Invention
Aiming at the defects in the prior art, the first purpose of the invention is to provide an automatic production line for extracting the positive electrode of the lithium battery, wherein a plurality of screening processes are adopted for screening to improve the recovery purity, the dust leakage in the whole screening and extracting process can be effectively prevented, and the environment-friendly and efficient production performance is improved.
The technical scheme adopted by the invention is as follows: an automatic production line for extracting the positive electrode of a lithium battery is characterized in that; comprises a multi-stage screening unit and a dust removal unit;
the multistage screening unit comprises a shredder, a first crusher and a first cyclone are sequentially arranged at the downstream of the shredder, and a first rotary vibration assembly is arranged at the downstream of the first cyclone; the downstream of the first rotary vibration assembly is sequentially connected with a second pulverizer and a second cyclone machine, and the downstream of the second cyclone machine is provided with a second rotary vibration assembly; one layer of discharge ports of the first rotary vibration assembly and the second rotary vibration assembly are connected with a packaging module;
the dust removal unit comprises a first dust remover and a second dust remover; the first dust remover is connected with a dust removal air port I, a dust removal air port II and a dust removal air port III, the dust removal air port I, the dust removal air port II and the dust removal air port III are respectively arranged above the shredder, the first crusher and the packing module, the second dust remover is connected with a dust removal valve I and a dust removal valve II, and the dust removal valve I and the dust removal valve II are respectively connected with air outlets of the first cyclone and the second cyclone; the output end of the second dust remover is also provided with a third rotary vibrating screen, and a discharge port of one layer of the third rotary vibrating screen is connected to the packaging module.
The multistage screening unit in the technical scheme can perform multistage screening treatment; the shredder and the first shredder can shred and crush the anode material for the first time in sequence, the material treated by the shredder is broken into pieces, the crushing pressure of the next work is effectively reduced, and the screening and extracting purity can be improved after the first crushing treatment; the materials after primary crushing can be conveyed into the first rotary vibration assembly through the first cyclone machine, and the extracted materials after being screened by the first rotary vibration assembly can be packaged; the materials which do not pass through the screening are crushed by the second crusher and then subjected to secondary screening treatment by the second rotary vibration assembly to finally complete packing, and the raw materials such as black powder in the anode sheet stock of the lithium battery can be effectively extracted and collected through multi-stage screening.
In drawing the collection process, first dust remover and second dust remover can carry out high-efficient dust removal processing, prevent that the dust from leaking the clean and tidy nature in effectively having protected the workshop production, prevent effectively that the dust from leaking outward, make the workshop keep clean and tidy, guaranteed the security that prevents the dust too thick explosion that arouses, improve the high-efficient production performance of environmental protection, still can effectively control metallic element and run off from leaking the dust, make the finished product purity of purification higher.
Furthermore, the input end of the shredder is provided with a movable feeding table.
Further, the shredder output is connected to the first shredder input by a conveyor.
Furthermore, a first air conveyor is arranged at the output end of the first pulverizer and connected to the input end of the first cyclone machine through an air conveying pipe.
Furthermore, a second air conveyor is arranged at the output end of the second pulverizer and connected to the input end of the second cyclone machine through an air conveying pipe.
Further, first shake assembly soon including the sieve I that shakes soon, the sieve II that shakes soon and the sieve III that shakes soon that arranges in series in proper order, the sieve I that shakes soon, the sieve II that shakes soon and the one deck discharge gate that shakes soon III are connected to the packing module through the auger that gathers materials, and the sieve I input that shakes soon is connected with first whirlwind machine output, the second floor discharge gate that shakes III that shakes is connected with the second rubbing crusher input.
Further, the second shakes the assembly soon including the sieve IV and the sieve V that shakes soon that arrange in series in proper order, the sieve IV and the sieve V that shakes soon one deck discharge gate of shaking is connected to the packing module through the auger that gathers materials, the sieve IV input that shakes soon is connected with second whirlwind machine output.
Further, dust removal wind gap I, dust removal wind gap II and dust removal wind gap III are connected to first dust remover through first dust collecting pipe, dust removal valve I and dust removal valve II are connected to the second dust remover through the second dust collecting pipe.
Further, the screening meshes of the rotary vibration screen I and the rotary vibration screen II are 100 meshes, the screening mesh of the rotary vibration screen III is 50 meshes, the screening meshes of the rotary vibration screen IV and the rotary vibration screen V are 120 meshes, and the screening mesh of the third rotary vibration screen is 150 meshes.
The invention also aims to provide a lithium battery anode material extraction process, which adopts the lithium battery anode extraction automatic production line; comprises the following steps;
s1, shredding and crushing; the lithium battery anode material fed into the movable feeding table is thrown into the shredder and shredded into small pieces, the shredded small pieces are conveyed into the first shredder through the conveying belt to be shredded, and dust generated in the shredding and first shredding process is absorbed into the first dust remover through the dust removal air opening I and the dust removal air opening II.
S2, primary screening; after the materials are crushed for the first time, the materials are conveyed into the first cyclone through the air conveying pipe, dust is absorbed through the dust removal valve I, the materials in the first cyclone are sequentially screened through the rotary vibrating screen I, the rotary vibrating screen II and the rotary vibrating screen III, and sorted materials output from one layer of discharge ports of the rotary vibrating screen I, the rotary vibrating screen II and the rotary vibrating screen III are conveyed to the packing module through the collecting auger.
S3, secondary crushing; and materials of a second-layer discharge hole of the output rotary vibrating screen III are input into a second crusher to be crushed for the second time, the materials are conveyed into a second cyclone by a second air conveyor after being crushed, and dust generated by the materials in the second cyclone is absorbed by a dust removal valve II and then conveyed to a second dust remover.
S4, secondary screening; the materials are output from the second cyclone machine and then enter the rotary vibrating screen IV and the rotary vibrating screen V for screening, and the sorted materials output from one layer of discharge ports of the rotary vibrating screen IV and the rotary vibrating screen V are conveyed to the packing module through the collecting auger.
S5, screening dust; the dust particles absorbed by the dust removal valve I and the dust removal valve II are output into the third rotary vibrating screen from the output end of the second dust remover, and the sorted materials output from the discharge port of the first layer of the third rotary vibrating screen are conveyed to the packing module through the collecting auger.
In the process, the step 1 can prevent the feeding of thick laminated sheet materials from damaging parts of the crusher easily, and the process of firstly shredding and then crushing is adopted, so that the working pressure of the first crushing flow is effectively reduced, and the production efficiency is improved.
The steps 2 to 5 can effectively enable the black powder in the positive electrode sheet material of the lithium battery to be quickly sorted and collected in a dustproof manner after being crushed, and enable the aluminum metal in the sheet material to be quickly purified, extracted and collected after being crushed, so that the problem that the black powder is lost in the black powder after being crushed again in the subsequent process is avoided, and the purity of the black powder in the subsequent extraction process is improved. The micro negative pressure is carried out in the machine bin in the whole production process, so that dust leakage is prevented, and the neatness in workshop production is effectively protected.
The invention has the beneficial effects that: the invention adopts a plurality of physical automatic extraction units and synchronous conveying equipment to complete the whole classification and purification production line; can carry out the separation and purification through shredding, smashing, screening by vibration, dust removal air-assisted transportation etc. to the black powder of coating on the battery sheet material and the current collection body aluminium metal and retrieve, adopt dust collecting equipment to remove dust from throwing the whole flow of material packing finished product and can effectively prevent that the dust from leaking outward, make the workshop keep clean and tidy, guaranteed the security that prevents the dust and lead to the explosion excessively dense, improve the high-efficient production performance of environmental protection. Effectively controlling the loss of metal elements from leaked dust. The invention also adopts the process design of extracting the aluminum metal locally at the front end, reduces the purification pressure and loss in the subsequent extraction process, and ensures that the purity of the purified finished product is higher; the invention can embody the performances of high efficiency, safety, environmental protection and the like, can efficiently solve the problem of the recycling economic benefit of the new energy power lithium battery material, and has higher practical value and popularization value.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a structural diagram of a processing and screening system of an automatic lithium battery positive electrode extraction production line according to an embodiment of the present invention.
Description of the drawings: the device comprises a shredder 100, a first crusher 200, a first cyclone 300, a collecting auger 400, a second crusher 500, a second cyclone 600, a packing module 700, a first dust remover 800, a dust removing air port I810, a dust removing air port II820, a dust removing air port III830, a first dust collecting pipe 840, a second dust remover 900, a dust removing valve I910, a dust removing valve II920, a second dust collecting pipe 930, a third rotary vibration sieve 1000, a movable feeding table 1100, a conveying belt 1200, a first air feeder 1300, a second air feeder 1400, a rotary vibration sieve I1500, a rotary vibration sieve II1600, a rotary vibration sieve III1700, a rotary vibration sieve IV1800 and a rotary vibration sieve V1900.
Detailed Description
Here, it is to be noted that the functions, methods, and the like related to the present invention are only conventional adaptive applications of the prior art. Therefore, the present invention is an improvement of the prior art, which is substantially in the connection relationship between hardware, and not in the functions and methods themselves, that is, the present invention relates to a point of functions and methods, but does not include the improvements proposed in the functions and methods themselves. The description of the present invention as to functions and methods is provided for better illustration and understanding of the present invention.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
Example one
Referring to fig. 1, in the automatic lithium battery positive electrode extraction production line provided in this embodiment, a plurality of physical automatic extraction units are butted with a synchronous conveying device to complete the whole classification and purification production line, and black powder coated on battery sheets and aluminum metal current collector can be separated, purified and recovered by shredding, crushing, sieving, dust removal, air conveying, and the like. The device specifically comprises a multistage screening unit and a dust removal unit.
As shown in fig. 1, the multi-stage screening unit includes a shredder 100, a first crusher 200 and a first cyclone 300 are sequentially disposed downstream of the shredder 100, and a first rotational-vibration assembly is disposed downstream of the first cyclone 300; the downstream of the first rotary vibration assembly is sequentially connected with a second crusher 500 and a second cyclone 600, and the downstream of the second cyclone 600 is provided with a second rotary vibration assembly; and a layer of discharge port of the first rotary vibration assembly and the second rotary vibration assembly is connected with a packing module 700. The multistage screening unit in the embodiment can perform multistage screening processing; the shredder 100 and the first shredder 200 can shred and crush the anode material for the first time in sequence, the material processed by the shredder 100 becomes fragments, the crushing pressure of the next work is effectively reduced, and the screening and extracting purity can be improved after the first crushing treatment; the materials after the primary crushing can be conveyed into the first rotary vibration assembly through the first cyclone machine 300, and the extracted materials after being screened by the first rotary vibration assembly can be packaged; the materials which do not pass through the screening are crushed by the second crusher 500 and then subjected to secondary screening treatment by the second rotary vibration assembly to finally complete packing, and the raw materials such as black powder in the anode sheet stock of the lithium battery can be effectively extracted and collected through multi-stage screening. It is to be noted that; the material of the contact object of each unit structure and the product material can be preferably selected from 304 stainless steel materials to be customized, so that the problem that the refined material cannot be doped with magnetic substances is solved.
As shown in fig. 1, in order to perform a dust removal process on the entire production line, the dust removal unit in this embodiment includes a first dust remover 800 and a second dust remover 900; the first dust remover 800 is connected with a dust removal air port I810, a dust removal air port II820 and a dust removal air port III830, the dust removal air port I810, the dust removal air port II820 and the dust removal air port III830 are respectively arranged above the shredder 100, the first crusher 200 and the packing module 700, the second dust remover 900 is connected with a dust removal valve I910 and a dust removal valve II920, and the dust removal valve I910 and the dust removal valve II920 are respectively connected with air outlets of the first cyclone 300 and the second cyclone 600; the output end of the second dust remover 900 is further provided with a third rotary vibrating screen 1000, and a layer of discharge hole of the third rotary vibrating screen 1000 is connected to the packaging module 700. Like this, extracting the collection in-process, first dust remover 800 and second dust remover 900 can carry out high-efficient dust removal processing, prevent that the dust from leaking the clean and tidy nature in effectively having protected the workshop production, prevent effectively that the dust from leaking outward, make the workshop keep clean and tidy, guaranteed the security that prevents the explosion that the dust is too thick arouses, improve the high-efficient production performance of environmental protection, can effectively control metallic element from leaking the dust and run off, make the finished product purity of purification higher. In this embodiment, the dust removal tuyere I810, the dust removal tuyere II820 and the dust removal tuyere III830 are connected to the first dust remover 800 through the first dust collection pipe 840, and the dust removal valve I910 and the dust removal valve II920 are connected to the second dust remover 900 through the second dust collection pipe 930.
As shown in FIG. 1, to facilitate feeding, the shredder 100 of the present embodiment includes a movable feeding table 1100 at the input end. In practical application, an operator can place the movable feeding table 1100 through a forklift, so that the movable feeding table 1100 is horizontally butted with the feeding port of the shredder 100. Dust produced in the feeding process can be sucked by the dust removal air port I810, so that the dust is prevented from leaking. In addition, in order to convey the shredded sheet materials into the first shredder 200 for further shredding, the output end of the shredder 100 in this embodiment is connected to the input end of the first shredder 200 through a conveyor 1200.
As shown in fig. 1, as mentioned above, the material crushed by the first crusher 200 needs to be thrown into the first cyclone 300, and in order to be transported quickly, the output end of the first crusher 200 in this embodiment is provided with a first air conveyor 1300, and the first air conveyor 1300 is connected to the input end of the first cyclone 300 through an air conveying pipe. In this way, the granular materials after the first pulverization can be blown into the first cyclone through the air delivery pipe under the negative pressure attraction of the first air delivery machine 1300, so that the materials slide into the first rotary vibration assembly along the wall by rotating, and the dust gas in the first cyclone 300 is delivered into the second dust collector 900 from the dust removal valve I910 in a negative pressure drainage manner to realize dust recovery. Similarly, the output end of the second pulverizer 500 in this embodiment is provided with a second air blower 1400, and the second air blower 1400 is connected to the input end of the second cyclone 600 through an air duct. In this way, the granular materials after the second crushing can be blown into the second cyclone through the air delivery pipe under the negative pressure attraction of the second air blower 1400, so that the materials slide into the second rotary vibration assembly along the wall by rotating, and the dust in the second cyclone 600 is conveyed into the second dust collector 900 from the dust removal valve II920 in a negative pressure drainage manner to realize dust recovery.
As shown in fig. 1, in order to perform the first and second rotary-shaking screening efficiently, the first rotary-shaking assembly in this embodiment includes a rotary-shaking screen I1500, a rotary-shaking screen II1600, and a rotary-shaking screen III1700 that are sequentially arranged in series, one layer of discharge ports of the rotary-shaking screen I1500, the rotary-shaking screen II1600, and the rotary-shaking screen III1700 are connected to the packing module 700 through the collection auger 400, an input end of the rotary-shaking screen I1500 is connected to an output end of the first cyclone 300, and a second layer of discharge ports of the rotary-shaking screen III1700 is connected to an input end of the second pulverizer 500. The second rotary vibration assembly comprises a rotary vibration sieve IV1800 and a rotary vibration sieve V1900 which are sequentially arranged in series, a discharge port of one layer of the rotary vibration sieve IV1800 and a discharge port of the rotary vibration sieve V1900 are connected to the packing module 700 through the material collecting auger 400, and the input end of the rotary vibration sieve IV1800 is connected with the output end of the second cyclone 600. The screening mesh number of the rotary vibrating screen I1500 and the rotary vibrating screen II1600 is 100 meshes, the screening mesh number of the rotary vibrating screen III1700 is 50 meshes, the screening mesh number of the rotary vibrating screen IV1800 and the rotary vibrating screen V1900 is 120 meshes, and the screening mesh number of the third rotary vibrating screen 1000 is 150 meshes.
Through the arrangement, black powder screened by the materials through the rotary vibrating screen I1500, the rotary vibrating screen II1600 and the rotary vibrating screen III1700 can be output through a layer of discharge hole for packaging; the rotary vibrating screen I and the rotary vibrating screen II can recover 90% of coarse aluminum particles from finished products, the structure adopts the process design of extracting aluminum metal from the front end, the purification pressure of the subsequent continuous crushing process is reduced, the black powder loss in the purification and separation of the aluminum metal is reduced, and the purity of the black powder is improved. Black powder purified and screened by the rotary vibrating screen IV1800 and the rotary vibrating screen V1900 is input into the aggregate auger 400 through a layer of discharge port, is conveyed to the packing module 700, and finally materials which cannot be screened are output to finish fine aluminum particle collection and packing. Dust impurity that includes black dust meeting and a small amount of aluminium metal in the second dust removal cabinet can carry out 150 mesh purification sieve sorts through third rotary vibrating screen 1000, can carry out the packing after the screening and handle and accomplish the extraction that becomes more meticulous.
Example two
As shown in fig. 1, the present embodiment provides a positive electrode material extraction process by using the automatic production line for extracting a positive electrode of a lithium battery, which includes the following steps;
step 1, shredding and crushing; feeding the lithium battery anode material fed into the movable feeding table 1100 into the shredder 100, shredding the lithium battery anode material into small pieces, conveying the shredded small pieces into the first shredder 200 through the conveyor belt 1200 for primary shredding, and absorbing dust generated in the shredding and primary shredding process into the first dust remover 800 through the dust removal air inlet I810 and the dust removal air inlet II 820; in the step, the shredder 100 is used for shredding to prevent the thicker stacked sheet materials from being thrown into the shredder to cause parts of the shredder to be easy to damage, and the shredding and then shredding process is adopted, so that the working pressure of the shredder is effectively reduced and the production efficiency is improved; and dust generated during the pulverization can be effectively collected.
Step 2, primary screening; the materials after the first crushing are sent into the first cyclone 300 through an air conveying pipe, dust is absorbed through a dust removal valve I910, the materials in the first cyclone 300 are sequentially screened through a rotary vibrating screen I1500, a rotary vibrating screen II1600 and a rotary vibrating screen III1700, and the sorted materials output from one layer of discharge ports of the rotary vibrating screen I1500, the rotary vibrating screen II1600 and the rotary vibrating screen III1700 are conveyed to the packing module 700 through the collecting auger 400; black powder and aluminum powder in the materials can be extracted for the first time through the first screening.
Step 3, secondary crushing; materials output from the discharge port of the second layer of the rotary vibrating screen III1700 are input into the second crusher 500 for secondary crushing, the crushed materials are sent into the second cyclone 600 by the second air blower 1400, and dust generated by the materials in the second cyclone 600 is absorbed by the dust removal valve II920 and then is sent to the second dust remover 900; this step can carry out the second time to the material that does not pass through the screening in the first screening and smash to be favorable to carrying out the secondary screening.
Step 4, secondary screening; the materials are output from the second cyclone 600 and then enter the rotary vibrating screen IV1800 and the rotary vibrating screen V1900 for screening, and the sorted materials output from one layer of discharge ports of the rotary vibrating screen IV1800 and the rotary vibrating screen V1900 are conveyed to the packing module 700 through the collecting auger 400; the black powder and the aluminum powder in the material can be completely extracted and recovered through the second screening.
Step 5, screening dust; the dust particles absorbed by the dust removal valve I910 and the dust removal valve II920 are output from the output end of the second dust remover 900 to the third rotary vibrating screen 1000, and the sorted materials output from the discharge port of the third rotary vibrating screen 1000 at the first layer are conveyed to the packing module 700 by the packing auger. After dust absorbed by the dust removal valve I910 and the dust removal valve II920 is conveyed to the second dust removal cabinet, dust impurities including black dust and a small amount of aluminum metal can be purified, screened and separated by the third rotary vibrating screen 1000, and after screening, packing treatment can be performed to complete fine extraction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (10)
1. An automatic production line for extracting the positive electrode of a lithium battery is characterized in that; comprises a multi-stage screening unit and a dust removal unit;
the multistage screening unit comprises a shredder (100), a first crusher (200) and a first cyclone (300) are sequentially arranged at the downstream of the shredder (100), and a first rotary vibration assembly is arranged at the downstream of the first cyclone (300); the downstream of the first rotary vibration assembly is sequentially connected with a second pulverizer (500) and a second cyclone (600), and the downstream of the second cyclone (600) is provided with a second rotary vibration assembly; one layer of discharge ports of the first rotary vibration assembly and the second rotary vibration assembly are connected with a packing module (700);
the dust removal unit comprises a first dust remover (800) and a second dust remover (900); the first dust remover (800) is connected with a dust removal air port I (810), a dust removal air port II (820) and a dust removal air port III (830), the dust removal air port I (810), the dust removal air port II (820) and the dust removal air port III (830) are respectively arranged above the shredder (100), the first pulverizer (200) and the packing module (700), the second dust remover (900) is connected with a dust removal valve I (910) and a dust removal valve II (920), and the dust removal valve I (910) and the dust removal valve II (920) are respectively connected with air outlets of the first cyclone (300) and the second cyclone (600); the output end of the second dust remover (900) is also provided with a third rotary vibrating screen (1000), and a discharge hole at one layer of the third rotary vibrating screen (1000) is connected to the packing module (700).
2. The lithium battery positive electrode extraction automatic production line according to claim 1, wherein; the input end of the shredder (100) is provided with a movable feeding table (1100).
3. The lithium battery positive electrode extraction automatic production line according to claim 1, wherein; the shredder (100) output is connected to the first shredder (200) input via a conveyor (1200).
4. The lithium battery positive electrode extraction automatic production line according to claim 1, wherein; the output end of the first pulverizer (200) is provided with a first air conveyor (1300), and the first air conveyor (1300) is connected to the input end of the first cyclone (300) through an air conveying pipe.
5. The lithium battery positive electrode extraction automatic production line according to claim 1, wherein; the output end of the second pulverizer (500) is provided with a second air conveyor (1400), and the second air conveyor (1400) is connected to the input end of the second cyclone (600) through an air conveying pipe.
6. The lithium battery positive electrode extraction automatic production line according to claim 1, wherein; first revolve shake the assembly including the sieve I (1500) that shakes soon, the sieve II (1600) that shakes soon and the sieve III (1700) that shakes soon that arrange in series in proper order, the one deck discharge gate that the sieve I (1500), the sieve II (1600) that shakes soon and the sieve III (1700) that shakes soon is connected to packing module (700) through collection auger (400), and the sieve I (1500) input that shakes soon is connected with first whirlwind machine (300) output, the two layers of discharge gate that shakes the sieve III (1700) soon is connected with second rubbing crusher (500) input.
7. The automatic production line for extracting the positive electrode of the lithium battery as claimed in claim 6, wherein the production line comprises a production line body and a production line body; the second shakes the assembly soon including the sieve IV (1800) and the sieve V (1900) that shakes soon that arrange in series in proper order, sieve IV (1800) and sieve V (1900) one deck discharge gate that shakes soon are connected to packing module (700) through collection auger (400), sieve IV (1800) input and second cyclone (600) output that shakes soon are connected.
8. The lithium battery positive electrode extraction automatic production line according to claim 1, wherein; the dust removal air port I (810), the dust removal air port II (820) and the dust removal air port III (830) are connected to a first dust remover (800) through a first dust collection pipe (840), and the dust removal valve I (910) and the dust removal valve II (920) are connected to a second dust remover (900) through a second dust collection pipe (930).
9. The lithium battery positive electrode extraction automatic production line according to claim 7, wherein; the screening mesh number of rotatory trembler I (1500) and rotatory trembler II (1600) is 100 meshes, the screening mesh number of rotatory trembler III (1700) is 50 meshes, the screening mesh number of rotatory trembler IV (1800) and rotatory trembler V (1900) is 120 meshes, the screening mesh number of third rotatory trembler (1000) is 150 meshes.
10. An extraction process using the lithium battery positive electrode extraction automation line of any one of claims 1 to 9, characterized in that; the method comprises the following steps:
s1, shredding and crushing; feeding the lithium battery anode material fed into the movable feeding table (1100) into a shredder (100), shredding the lithium battery anode material into small pieces, conveying the shredded small pieces into a first shredder (200) through a conveying belt (1200) for primary shredding, and absorbing dust generated in the shredding and primary shredding process into a first dust remover (800) through a dust removal air port I (810) and a dust removal air port II (820);
s2, primary screening; the materials after the first crushing are sent into a first cyclone (300) through an air conveying pipe, dust is absorbed through a dust removal valve I (910), the materials in the first cyclone (300) are sequentially screened through a rotary vibrating screen I (1500), a rotary vibrating screen II (1600) and a rotary vibrating screen III (1700), and sorted materials output from one layer of discharge ports of the rotary vibrating screen I (1500), the rotary vibrating screen II (1600) and the rotary vibrating screen III (1700) are conveyed to a packing module (700) through a collecting auger (400);
s3, secondary crushing; materials output from a discharge port on the second layer of the rotary vibrating screen III (1700) are input into a second crusher (500) for secondary crushing, the materials are conveyed into a second cyclone (600) by a second air conveyor (1400) after the crushing is finished, and dust generated by the materials in the second cyclone (600) is absorbed by a dust removal valve II (920) and then conveyed to a second dust remover (900);
s4, secondary screening; the materials are output from the second cyclone (600) and then enter the rotary vibrating screen IV (1800) and the rotary vibrating screen V (1900) for screening, and sorted materials output from one layer of discharge ports of the rotary vibrating screen IV (1800) and the rotary vibrating screen V (1900) are conveyed to the packing module (700) through the material collecting auger (400);
s5, screening dust; dust particles absorbed by the dust removal valve I (910) and the dust removal valve II (920) are output into the third rotary vibrating screen (1000) from the output end of the second dust remover (900), and sorted materials output from a layer of discharge hole of the third rotary vibrating screen (1000) are conveyed to the packing module (700) through the collecting auger (400).
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